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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt22
-rw-r--r--Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt1
-rw-r--r--Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt2
-rw-r--r--Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt2
-rw-r--r--Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt41
-rw-r--r--Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml86
-rw-r--r--Documentation/devicetree/bindings/usb/renesas,usbhs.txt57
-rw-r--r--Documentation/devicetree/bindings/usb/renesas,usbhs.yaml126
-rw-r--r--Documentation/devicetree/bindings/usb/richtek,rt1711h.txt29
-rw-r--r--Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt38
-rw-r--r--Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml86
-rw-r--r--Documentation/devicetree/bindings/usb/usb-xhci.txt1
-rw-r--r--Documentation/devicetree/bindings/usb/usb251xb.txt3
-rw-r--r--drivers/extcon/extcon-axp288.c38
-rw-r--r--drivers/media/usb/uvc/uvc_debugfs.c10
-rw-r--r--drivers/phy/renesas/phy-rcar-gen3-usb2.c2
-rw-r--r--drivers/usb/cdns3/Kconfig10
-rw-r--r--drivers/usb/cdns3/Makefile1
-rw-r--r--drivers/usb/cdns3/cdns3-ti.c236
-rw-r--r--drivers/usb/chipidea/ci_hdrc_imx.c79
-rw-r--r--drivers/usb/chipidea/ci_hdrc_imx.h2
-rw-r--r--drivers/usb/chipidea/ci_hdrc_tegra.c22
-rw-r--r--drivers/usb/chipidea/core.c2
-rw-r--r--drivers/usb/chipidea/debug.c2
-rw-r--r--drivers/usb/chipidea/udc.c75
-rw-r--r--drivers/usb/chipidea/usbmisc_imx.c31
-rw-r--r--drivers/usb/core/config.c12
-rw-r--r--drivers/usb/core/devio.c19
-rw-r--r--drivers/usb/core/hub.c201
-rw-r--r--drivers/usb/dwc2/core.c2
-rw-r--r--drivers/usb/dwc2/core.h2
-rw-r--r--drivers/usb/dwc2/debugfs.c2
-rw-r--r--drivers/usb/dwc3/Kconfig30
-rw-r--r--drivers/usb/dwc3/core.c37
-rw-r--r--drivers/usb/dwc3/debug.h4
-rw-r--r--drivers/usb/dwc3/debugfs.c2
-rw-r--r--drivers/usb/dwc3/dwc3-of-simple.c28
-rw-r--r--drivers/usb/gadget/composite.c6
-rw-r--r--drivers/usb/gadget/configfs.c1
-rw-r--r--drivers/usb/gadget/function/f_acm.c21
-rw-r--r--drivers/usb/gadget/function/f_obex.c2
-rw-r--r--drivers/usb/gadget/function/f_serial.c21
-rw-r--r--drivers/usb/gadget/function/f_tcm.c13
-rw-r--r--drivers/usb/gadget/function/u_serial.c516
-rw-r--r--drivers/usb/gadget/function/u_serial.h8
-rw-r--r--drivers/usb/gadget/legacy/Kconfig26
-rw-r--r--drivers/usb/gadget/legacy/acm_ms.c3
-rw-r--r--drivers/usb/gadget/legacy/mass_storage.c3
-rw-r--r--drivers/usb/gadget/legacy/serial.c49
-rw-r--r--drivers/usb/gadget/udc/Kconfig19
-rw-r--r--drivers/usb/gadget/udc/Makefile1
-rw-r--r--drivers/usb/gadget/udc/at91_udc.c4
-rw-r--r--drivers/usb/gadget/udc/atmel_usba_udc.c3
-rw-r--r--drivers/usb/gadget/udc/bcm63xx_udc.c9
-rw-r--r--drivers/usb/gadget/udc/bdc/bdc_core.c4
-rw-r--r--drivers/usb/gadget/udc/bdc/bdc_udc.c2
-rw-r--r--drivers/usb/gadget/udc/dummy_hcd.c10
-rw-r--r--drivers/usb/gadget/udc/fsl_qe_udc.h4
-rw-r--r--drivers/usb/gadget/udc/fsl_udc_core.c12
-rw-r--r--drivers/usb/gadget/udc/gr_udc.c7
-rw-r--r--drivers/usb/gadget/udc/lpc32xx_udc.c6
-rw-r--r--drivers/usb/gadget/udc/mv_u3d.h2
-rw-r--r--drivers/usb/gadget/udc/pch_udc.c1
-rw-r--r--drivers/usb/gadget/udc/pxa25x_udc.c4
-rw-r--r--drivers/usb/gadget/udc/pxa27x_udc.c6
-rw-r--r--drivers/usb/gadget/udc/r8a66597-udc.c5
-rw-r--r--drivers/usb/gadget/udc/renesas_usb3.c21
-rw-r--r--drivers/usb/gadget/udc/s3c-hsudc.c5
-rw-r--r--drivers/usb/gadget/udc/s3c2410_udc.c3
-rw-r--r--drivers/usb/gadget/udc/tegra-xudc.c3810
-rw-r--r--drivers/usb/host/Kconfig106
-rw-r--r--drivers/usb/host/bcma-hcd.c5
-rw-r--r--drivers/usb/host/fotg210-hcd.c8
-rw-r--r--drivers/usb/host/imx21-dbg.c2
-rw-r--r--drivers/usb/host/isp1362-hcd.c5
-rw-r--r--drivers/usb/host/ohci-at91.c8
-rw-r--r--drivers/usb/host/ohci-nxp.c2
-rw-r--r--drivers/usb/host/oxu210hp-hcd.c14
-rw-r--r--drivers/usb/host/u132-hcd.c2
-rw-r--r--drivers/usb/host/xhci-pci.c4
-rw-r--r--drivers/usb/host/xhci-ring.c68
-rw-r--r--drivers/usb/host/xhci-tegra.c126
-rw-r--r--drivers/usb/host/xhci-trace.h26
-rw-r--r--drivers/usb/host/xhci.c3
-rw-r--r--drivers/usb/host/xhci.h29
-rw-r--r--drivers/usb/image/microtek.c3
-rw-r--r--drivers/usb/isp1760/isp1760-hcd.c2
-rw-r--r--drivers/usb/misc/Kconfig22
-rw-r--r--drivers/usb/misc/appledisplay.c8
-rw-r--r--drivers/usb/misc/chaoskey.c24
-rw-r--r--drivers/usb/misc/ftdi-elan.c6
-rw-r--r--drivers/usb/misc/idmouse.c36
-rw-r--r--drivers/usb/misc/legousbtower.c303
-rw-r--r--drivers/usb/misc/sisusbvga/Kconfig2
-rw-r--r--drivers/usb/misc/usb251xb.c66
-rw-r--r--drivers/usb/mtu3/mtu3_gadget_ep0.c35
-rw-r--r--drivers/usb/musb/musb_core.c4
-rw-r--r--drivers/usb/musb/musb_debugfs.c2
-rw-r--r--drivers/usb/musb/musb_dsps.c2
-rw-r--r--drivers/usb/musb/musb_gadget.c5
-rw-r--r--drivers/usb/phy/phy-keystone.c4
-rw-r--r--drivers/usb/phy/phy-mxs-usb.c4
-rw-r--r--drivers/usb/renesas_usbhs/common.c5
-rw-r--r--drivers/usb/renesas_usbhs/common.h3
-rw-r--r--drivers/usb/renesas_usbhs/fifo.c4
-rw-r--r--drivers/usb/renesas_usbhs/mod.c19
-rw-r--r--drivers/usb/renesas_usbhs/mod_gadget.c12
-rw-r--r--drivers/usb/roles/class.c21
-rw-r--r--drivers/usb/serial/Kconfig48
-rw-r--r--drivers/usb/serial/ch341.c97
-rw-r--r--drivers/usb/serial/cp210x.c1
-rw-r--r--drivers/usb/serial/ftdi_sio.c3
-rw-r--r--drivers/usb/serial/ftdi_sio_ids.h7
-rw-r--r--drivers/usb/serial/mos7720.c4
-rw-r--r--drivers/usb/serial/mos7840.c762
-rw-r--r--drivers/usb/serial/option.c7
-rw-r--r--drivers/usb/serial/pl2303.c124
-rw-r--r--drivers/usb/serial/pl2303.h6
-rw-r--r--drivers/usb/storage/scsiglue.c4
-rw-r--r--drivers/usb/storage/uas.c10
-rw-r--r--drivers/usb/storage/unusual_uas.h7
-rw-r--r--drivers/usb/typec/Kconfig11
-rw-r--r--drivers/usb/typec/Makefile1
-rw-r--r--drivers/usb/typec/class.c42
-rw-r--r--drivers/usb/typec/hd3ss3220.c269
-rw-r--r--drivers/usb/typec/tcpm/tcpm.c135
-rw-r--r--drivers/usb/typec/tps6598x.c49
-rw-r--r--drivers/usb/typec/ucsi/displayport.c40
-rw-r--r--drivers/usb/typec/ucsi/trace.c11
-rw-r--r--drivers/usb/typec/ucsi/trace.h79
-rw-r--r--drivers/usb/typec/ucsi/ucsi.c609
-rw-r--r--drivers/usb/typec/ucsi/ucsi.h417
-rw-r--r--drivers/usb/typec/ucsi/ucsi_acpi.c91
-rw-r--r--drivers/usb/typec/ucsi/ucsi_ccg.c166
-rw-r--r--drivers/usb/usbip/Kconfig1
-rw-r--r--drivers/usb/usbip/stub_rx.c50
-rw-r--r--drivers/usb/usbip/stub_tx.c2
-rw-r--r--include/linux/usb/role.h3
-rw-r--r--include/linux/usb/tcpm.h41
-rw-r--r--include/linux/usb/typec.h41
-rw-r--r--tools/usb/usbip/libsrc/usbip_host_common.c2
141 files changed, 7240 insertions, 2850 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 122f2d2f3e96..1fda057434c3 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5114,13 +5114,13 @@
Flags is a set of characters, each corresponding
to a common usb-storage quirk flag as follows:
a = SANE_SENSE (collect more than 18 bytes
- of sense data);
+ of sense data, not on uas);
b = BAD_SENSE (don't collect more than 18
- bytes of sense data);
+ bytes of sense data, not on uas);
c = FIX_CAPACITY (decrease the reported
device capacity by one sector);
d = NO_READ_DISC_INFO (don't use
- READ_DISC_INFO command);
+ READ_DISC_INFO command, not on uas);
e = NO_READ_CAPACITY_16 (don't use
READ_CAPACITY_16 command);
f = NO_REPORT_OPCODES (don't use report opcodes
@@ -5135,17 +5135,18 @@
j = NO_REPORT_LUNS (don't use report luns
command, uas only);
l = NOT_LOCKABLE (don't try to lock and
- unlock ejectable media);
+ unlock ejectable media, not on uas);
m = MAX_SECTORS_64 (don't transfer more
- than 64 sectors = 32 KB at a time);
+ than 64 sectors = 32 KB at a time,
+ not on uas);
n = INITIAL_READ10 (force a retry of the
- initial READ(10) command);
+ initial READ(10) command, not on uas);
o = CAPACITY_OK (accept the capacity
- reported by the device);
+ reported by the device, not on uas);
p = WRITE_CACHE (the device cache is ON
- by default);
+ by default, not on uas);
r = IGNORE_RESIDUE (the device reports
- bogus residue values);
+ bogus residue values, not on uas);
s = SINGLE_LUN (the device has only one
Logical Unit);
t = NO_ATA_1X (don't allow ATA(12) and ATA(16)
@@ -5154,7 +5155,8 @@
w = NO_WP_DETECT (don't test whether the
medium is write-protected).
y = ALWAYS_SYNC (issue a SYNCHRONIZE_CACHE
- even if the device claims no cache)
+ even if the device claims no cache,
+ not on uas)
Example: quirks=0419:aaf5:rl,0421:0433:rc
user_debug= [KNL,ARM]
diff --git a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
index 372f0eeb5a2a..f1f95f678739 100644
--- a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
+++ b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
@@ -8,6 +8,7 @@ Required Properties:
- "renesas,r8a7745-usb-dmac" (RZ/G1E)
- "renesas,r8a77470-usb-dmac" (RZ/G1C)
- "renesas,r8a774a1-usb-dmac" (RZ/G2M)
+ - "renesas,r8a774b1-usb-dmac" (RZ/G2N)
- "renesas,r8a774c0-usb-dmac" (RZ/G2E)
- "renesas,r8a7790-usb-dmac" (R-Car H2)
- "renesas,r8a7791-usb-dmac" (R-Car M2-W)
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
index 503a8cfb3184..7734b219d9aa 100644
--- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
@@ -10,6 +10,8 @@ Required properties:
SoC.
"renesas,usb2-phy-r8a774a1" if the device is a part of an R8A774A1
SoC.
+ "renesas,usb2-phy-r8a774b1" if the device is a part of an R8A774B1
+ SoC.
"renesas,usb2-phy-r8a774c0" if the device is a part of an R8A774C0
SoC.
"renesas,usb2-phy-r8a7795" if the device is a part of an R8A7795
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
index 9d9826609c2f..0fe433b9a592 100644
--- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
+++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
@@ -9,6 +9,8 @@ need this driver.
Required properties:
- compatible: "renesas,r8a774a1-usb3-phy" if the device is a part of an R8A774A1
SoC.
+ "renesas,r8a774b1-usb3-phy" if the device is a part of an R8A774B1
+ SoC.
"renesas,r8a7795-usb3-phy" if the device is a part of an R8A7795
SoC.
"renesas,r8a7796-usb3-phy" if the device is a part of an R8A7796
diff --git a/Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt b/Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt
deleted file mode 100644
index 35039e720515..000000000000
--- a/Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-Renesas Electronics USB3.0 Peripheral driver
-
-Required properties:
- - compatible: Must contain one of the following:
- - "renesas,r8a774a1-usb3-peri"
- - "renesas,r8a774c0-usb3-peri"
- - "renesas,r8a7795-usb3-peri"
- - "renesas,r8a7796-usb3-peri"
- - "renesas,r8a77965-usb3-peri"
- - "renesas,r8a77990-usb3-peri"
- - "renesas,rcar-gen3-usb3-peri" for a generic R-Car Gen3 or RZ/G2
- compatible device
-
- When compatible with the generic version, nodes must list the
- SoC-specific version corresponding to the platform first
- followed by the generic version.
-
- - reg: Base address and length of the register for the USB3.0 Peripheral
- - interrupts: Interrupt specifier for the USB3.0 Peripheral
- - clocks: clock phandle and specifier pair
-
-Optional properties:
- - phys: phandle + phy specifier pair
- - phy-names: must be "usb"
-
-Example of R-Car H3 ES1.x:
- usb3_peri0: usb@ee020000 {
- compatible = "renesas,r8a7795-usb3-peri",
- "renesas,rcar-gen3-usb3-peri";
- reg = <0 0xee020000 0 0x400>;
- interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 328>;
- };
-
- usb3_peri1: usb@ee060000 {
- compatible = "renesas,r8a7795-usb3-peri",
- "renesas,rcar-gen3-usb3-peri";
- reg = <0 0xee060000 0 0x400>;
- interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 327>;
- };
diff --git a/Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml b/Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml
new file mode 100644
index 000000000000..92d8631b9aa6
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/renesas,usb3-peri.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas USB 3.0 Peripheral controller
+
+maintainers:
+ - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - renesas,r8a774a1-usb3-peri # RZ/G2M
+ - renesas,r8a774b1-usb3-peri # RZ/G2N
+ - renesas,r8a774c0-usb3-peri # RZ/G2E
+ - renesas,r8a7795-usb3-peri # R-Car H3
+ - renesas,r8a7796-usb3-peri # R-Car M3-W
+ - renesas,r8a77965-usb3-peri # R-Car M3-N
+ - renesas,r8a77990-usb3-peri # R-Car E3
+ - const: renesas,rcar-gen3-usb3-peri
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ const: usb
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ usb-role-switch:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: Support role switch.
+
+ companion:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle of a companion.
+
+ port:
+ description: |
+ any connector to the data bus of this controller should be modelled
+ using the OF graph bindings specified, if the "usb-role-switch"
+ property is used.
+
+required:
+ - compatible
+ - interrupts
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a774c0-cpg-mssr.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/r8a774c0-sysc.h>
+
+ usb3_peri0: usb@ee020000 {
+ compatible = "renesas,r8a774c0-usb3-peri", "renesas,rcar-gen3-usb3-peri";
+ reg = <0 0xee020000 0 0x400>;
+ interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 328>;
+ companion = <&xhci0>;
+ usb-role-switch;
+
+ port {
+ usb3_role_switch: endpoint {
+ remote-endpoint = <&hd3ss3220_ep>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/usb/renesas,usbhs.txt b/Documentation/devicetree/bindings/usb/renesas,usbhs.txt
deleted file mode 100644
index e39255ea6e4f..000000000000
--- a/Documentation/devicetree/bindings/usb/renesas,usbhs.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Renesas Electronics USBHS driver
-
-Required properties:
- - compatible: Must contain one or more of the following:
-
- - "renesas,usbhs-r8a7743" for r8a7743 (RZ/G1M) compatible device
- - "renesas,usbhs-r8a7744" for r8a7744 (RZ/G1N) compatible device
- - "renesas,usbhs-r8a7745" for r8a7745 (RZ/G1E) compatible device
- - "renesas,usbhs-r8a77470" for r8a77470 (RZ/G1C) compatible device
- - "renesas,usbhs-r8a774a1" for r8a774a1 (RZ/G2M) compatible device
- - "renesas,usbhs-r8a774c0" for r8a774c0 (RZ/G2E) compatible device
- - "renesas,usbhs-r8a7790" for r8a7790 (R-Car H2) compatible device
- - "renesas,usbhs-r8a7791" for r8a7791 (R-Car M2-W) compatible device
- - "renesas,usbhs-r8a7792" for r8a7792 (R-Car V2H) compatible device
- - "renesas,usbhs-r8a7793" for r8a7793 (R-Car M2-N) compatible device
- - "renesas,usbhs-r8a7794" for r8a7794 (R-Car E2) compatible device
- - "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device
- - "renesas,usbhs-r8a7796" for r8a7796 (R-Car M3-W) compatible device
- - "renesas,usbhs-r8a77965" for r8a77965 (R-Car M3-N) compatible device
- - "renesas,usbhs-r8a77990" for r8a77990 (R-Car E3) compatible device
- - "renesas,usbhs-r8a77995" for r8a77995 (R-Car D3) compatible device
- - "renesas,usbhs-r7s72100" for r7s72100 (RZ/A1) compatible device
- - "renesas,usbhs-r7s9210" for r7s9210 (RZ/A2) compatible device
- - "renesas,rcar-gen2-usbhs" for R-Car Gen2 or RZ/G1 compatible devices
- - "renesas,rcar-gen3-usbhs" for R-Car Gen3 or RZ/G2 compatible devices
- - "renesas,rza1-usbhs" for RZ/A1 compatible device
- - "renesas,rza2-usbhs" for RZ/A2 compatible device
-
- When compatible with the generic version, nodes must list the
- SoC-specific version corresponding to the platform first followed
- by the generic version.
-
- - reg: Base address and length of the register for the USBHS
- - interrupts: Interrupt specifier for the USBHS
- - clocks: A list of phandle + clock specifier pairs.
- - In case of "renesas,rcar-gen3-usbhs", two clocks are required.
- First clock should be peripheral and second one should be host.
- - In case of except above, one clock is required. First clock
- should be peripheral.
-
-Optional properties:
- - renesas,buswait: Integer to use BUSWAIT register
- - renesas,enable-gpio: A gpio specifier to check GPIO determining if USB
- function should be enabled
- - phys: phandle + phy specifier pair
- - phy-names: must be "usb"
- - dmas: Must contain a list of references to DMA specifiers.
- - dma-names : named "ch%d", where %d is the channel number ranging from zero
- to the number of channels (DnFIFOs) minus one.
-
-Example:
- usbhs: usb@e6590000 {
- compatible = "renesas,usbhs-r8a7790", "renesas,rcar-gen2-usbhs";
- reg = <0 0xe6590000 0 0x100>;
- interrupts = <0 107 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&mstp7_clks R8A7790_CLK_HSUSB>;
- };
diff --git a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
new file mode 100644
index 000000000000..469affa872d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/renesas,usbhs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas USBHS (HS-USB) controller
+
+maintainers:
+ - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: renesas,usbhs-r7s72100 # RZ/A1
+ - const: renesas,rza1-usbhs
+
+ - items:
+ - const: renesas,usbhs-r7s9210 # RZ/A2
+ - const: renesas,rza2-usbhs
+
+ - items:
+ - enum:
+ - renesas,usbhs-r8a7743 # RZ/G1M
+ - renesas,usbhs-r8a7744 # RZ/G1N
+ - renesas,usbhs-r8a7745 # RZ/G1E
+ - renesas,usbhs-r8a77470 # RZ/G1C
+ - renesas,usbhs-r8a7790 # R-Car H2
+ - renesas,usbhs-r8a7791 # R-Car M2-W
+ - renesas,usbhs-r8a7792 # R-Car V2H
+ - renesas,usbhs-r8a7793 # R-Car M2-N
+ - renesas,usbhs-r8a7794 # R-Car E2
+ - const: renesas,rcar-gen2-usbhs
+
+ - items:
+ - enum:
+ - renesas,usbhs-r8a774a1 # RZ/G2M
+ - renesas,usbhs-r8a774b1 # RZ/G2N
+ - renesas,usbhs-r8a774c0 # RZ/G2E
+ - renesas,usbhs-r8a7795 # R-Car H3
+ - renesas,usbhs-r8a7796 # R-Car M3-W
+ - renesas,usbhs-r8a77965 # R-Car M3-N
+ - renesas,usbhs-r8a77990 # R-Car E3
+ - renesas,usbhs-r8a77995 # R-Car D3
+ - const: renesas,rcar-gen3-usbhs
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+ items:
+ - description: USB 2.0 host
+ - description: USB 2.0 peripheral
+ - description: USB 2.0 clock selector
+
+ interrupts:
+ maxItems: 1
+
+ renesas,buswait:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Integer to use BUSWAIT register.
+
+ renesas,enable-gpio:
+ description: |
+ gpio specifier to check GPIO determining if USB function should be
+ enabled.
+
+ phys:
+ maxItems: 1
+ items:
+ - description: phandle + phy specifier pair.
+
+ phy-names:
+ maxItems: 1
+ items:
+ - const: usb
+
+ dmas:
+ minItems: 2
+ maxItems: 4
+
+ dma-names:
+ minItems: 2
+ maxItems: 4
+ items:
+ - const: ch0
+ - const: ch1
+ - const: ch2
+ - const: ch3
+
+ dr_mode: true
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ minItems: 1
+ maxItems: 2
+ items:
+ - description: USB 2.0 host
+ - description: USB 2.0 peripheral
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/r8a7790-sysc.h>
+
+ usbhs: usb@e6590000 {
+ compatible = "renesas,usbhs-r8a7790", "renesas,rcar-gen2-usbhs";
+ reg = <0 0xe6590000 0 0x100>;
+ interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 704>;
+ };
diff --git a/Documentation/devicetree/bindings/usb/richtek,rt1711h.txt b/Documentation/devicetree/bindings/usb/richtek,rt1711h.txt
index d4cf53c071d9..e3fc57e605ed 100644
--- a/Documentation/devicetree/bindings/usb/richtek,rt1711h.txt
+++ b/Documentation/devicetree/bindings/usb/richtek,rt1711h.txt
@@ -6,10 +6,39 @@ Required properties:
- interrupts : <a b> where a is the interrupt number and b represents an
encoding of the sense and level information for the interrupt.
+Required sub-node:
+- connector: The "usb-c-connector" attached to the tcpci chip, the bindings
+ of connector node are specified in
+ Documentation/devicetree/bindings/connector/usb-connector.txt
+
Example :
rt1711h@4e {
compatible = "richtek,rt1711h";
reg = <0x4e>;
interrupt-parent = <&gpio26>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+
+ usb_con: connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ data-role = "dual";
+ power-role = "dual";
+ try-power-role = "sink";
+ source-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)>;
+ sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)
+ PDO_VAR(5000, 12000, 2000)>;
+ op-sink-microwatt = <10000000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@1 {
+ reg = <1>;
+ usb_con_ss: endpoint {
+ remote-endpoint = <&usb3_data_ss>;
+ };
+ };
+ };
+ };
};
diff --git a/Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt b/Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt
new file mode 100644
index 000000000000..25780e945b15
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt
@@ -0,0 +1,38 @@
+TI HD3SS3220 TypeC DRP Port Controller.
+
+Required properties:
+ - compatible: Must be "ti,hd3ss3220".
+ - reg: I2C slave address, must be 0x47 or 0x67 based on ADDR pin.
+ - interrupts: An interrupt specifier.
+
+Required sub-node:
+ - connector: The "usb-c-connector" attached to the hd3ss3220 chip. The
+ bindings of the connector node are specified in:
+
+ Documentation/devicetree/bindings/connector/usb-connector.txt
+
+Example:
+hd3ss3220@47 {
+ compatible = "ti,hd3ss3220";
+ reg = <0x47>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ data-role = "dual";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@1 {
+ reg = <1>;
+ hd3ss3220_ep: endpoint {
+ remote-endpoint = <&usb3_role_switch>;
+ };
+ };
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
new file mode 100644
index 000000000000..5f5264b2e9ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/ti,j721e-usb.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Bindings for the TI wrapper module for the Cadence USBSS-DRD controller
+
+maintainers:
+ - Roger Quadros <rogerq@ti.com>
+
+properties:
+ compatible:
+ items:
+ - const: ti,j721e-usb
+
+ reg:
+ description: module registers
+
+ power-domains:
+ description:
+ PM domain provider node and an args specifier containing
+ the USB device id value. See,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+
+ clocks:
+ description: Clock phandles to usb2_refclk and lpm_clk
+ minItems: 2
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ref
+ - const: lpm
+
+ ti,usb2-only:
+ description:
+ If present, it restricts the controller to USB2.0 mode of
+ operation. Must be present if USB3 PHY is not available
+ for USB.
+ type: boolean
+
+ ti,vbus-divider:
+ description:
+ Should be present if USB VBUS line is connected to the
+ VBUS pin of the SoC via a 1/3 voltage divider.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ #include <dt-bindings/soc/ti,sci_pm_domain.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ cdns_usb@4104000 {
+ compatible = "ti,j721e-usb";
+ reg = <0x00 0x4104000 0x00 0x100>;
+ power-domains = <&k3_pds 288 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 288 15>, <&k3_clks 288 3>;
+ clock-names = "ref", "lpm";
+ assigned-clocks = <&k3_clks 288 15>; /* USB2_REFCLK */
+ assigned-clock-parents = <&k3_clks 288 16>; /* HFOSC0 */
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ usb@6000000 {
+ compatible = "cdns,usb3";
+ reg = <0x00 0x6000000 0x00 0x10000>,
+ <0x00 0x6010000 0x00 0x10000>,
+ <0x00 0x6020000 0x00 0x10000>;
+ reg-names = "otg", "xhci", "dev";
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */
+ <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>, /* irq.6 */
+ <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>; /* otgirq.0 */
+ interrupt-names = "host",
+ "peripheral",
+ "otg";
+ maximum-speed = "super-speed";
+ dr_mode = "otg";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index b49b819571f9..3f378951d624 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -10,6 +10,7 @@ Required properties:
- "renesas,xhci-r8a7743" for r8a7743 SoC
- "renesas,xhci-r8a7744" for r8a7744 SoC
- "renesas,xhci-r8a774a1" for r8a774a1 SoC
+ - "renesas,xhci-r8a774b1" for r8a774b1 SoC
- "renesas,xhci-r8a774c0" for r8a774c0 SoC
- "renesas,xhci-r8a7790" for r8a7790 SoC
- "renesas,xhci-r8a7791" for r8a7791 SoC
diff --git a/Documentation/devicetree/bindings/usb/usb251xb.txt b/Documentation/devicetree/bindings/usb/usb251xb.txt
index 17915f64b8ee..1a934eab175e 100644
--- a/Documentation/devicetree/bindings/usb/usb251xb.txt
+++ b/Documentation/devicetree/bindings/usb/usb251xb.txt
@@ -7,11 +7,12 @@ Required properties :
- compatible : Should be "microchip,usb251xb" or one of the specific types:
"microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi",
- "microchip,usb2517", "microchip,usb2517i"
+ "microchip,usb2517", "microchip,usb2517i", "microchip,usb2422"
- reg : I2C address on the selected bus (default is <0x2C>)
Optional properties :
- reset-gpios : Should specify the gpio for hub reset
+ - vdd-supply : Should specify the phandle to the regulator supplying vdd
- skip-config : Skip Hub configuration, but only send the USB-Attach command
- vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)
- product-id : Set USB Product ID of the hub (16 bit, default depends on type)
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 415afaf479e7..a7f216191493 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -322,6 +322,25 @@ static void axp288_put_role_sw(void *data)
usb_role_switch_put(info->role_sw);
}
+static int axp288_extcon_find_role_sw(struct axp288_extcon_info *info)
+{
+ const struct software_node *swnode;
+ struct fwnode_handle *fwnode;
+
+ if (!x86_match_cpu(cherry_trail_cpu_ids))
+ return 0;
+
+ swnode = software_node_find_by_name(NULL, "intel-xhci-usb-sw");
+ if (!swnode)
+ return -EPROBE_DEFER;
+
+ fwnode = software_node_fwnode(swnode);
+ info->role_sw = usb_role_switch_find_by_fwnode(fwnode);
+ fwnode_handle_put(fwnode);
+
+ return info->role_sw ? 0 : -EPROBE_DEFER;
+}
+
static int axp288_extcon_probe(struct platform_device *pdev)
{
struct axp288_extcon_info *info;
@@ -343,9 +362,10 @@ static int axp288_extcon_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, info);
- info->role_sw = usb_role_switch_get(dev);
- if (IS_ERR(info->role_sw))
- return PTR_ERR(info->role_sw);
+ ret = axp288_extcon_find_role_sw(info);
+ if (ret)
+ return ret;
+
if (info->role_sw) {
ret = devm_add_action_or_reset(dev, axp288_put_role_sw, info);
if (ret)
@@ -440,26 +460,14 @@ static struct platform_driver axp288_extcon_driver = {
},
};
-static struct device_connection axp288_extcon_role_sw_conn = {
- .endpoint[0] = "axp288_extcon",
- .endpoint[1] = "intel_xhci_usb_sw-role-switch",
- .id = "usb-role-switch",
-};
-
static int __init axp288_extcon_init(void)
{
- if (x86_match_cpu(cherry_trail_cpu_ids))
- device_connection_add(&axp288_extcon_role_sw_conn);
-
return platform_driver_register(&axp288_extcon_driver);
}
module_init(axp288_extcon_init);
static void __exit axp288_extcon_exit(void)
{
- if (x86_match_cpu(cherry_trail_cpu_ids))
- device_connection_remove(&axp288_extcon_role_sw_conn);
-
platform_driver_unregister(&axp288_extcon_driver);
}
module_exit(axp288_extcon_exit);
diff --git a/drivers/media/usb/uvc/uvc_debugfs.c b/drivers/media/usb/uvc/uvc_debugfs.c
index d2b109959d82..2b8af4b54117 100644
--- a/drivers/media/usb/uvc/uvc_debugfs.c
+++ b/drivers/media/usb/uvc/uvc_debugfs.c
@@ -108,15 +108,7 @@ void uvc_debugfs_cleanup_stream(struct uvc_streaming *stream)
void uvc_debugfs_init(void)
{
- struct dentry *dir;
-
- dir = debugfs_create_dir("uvcvideo", usb_debug_root);
- if (IS_ERR_OR_NULL(dir)) {
- uvc_printk(KERN_INFO, "Unable to create debugfs directory\n");
- return;
- }
-
- uvc_debugfs_root_dir = dir;
+ uvc_debugfs_root_dir = debugfs_create_dir("uvcvideo", usb_debug_root);
}
void uvc_debugfs_cleanup(void)
diff --git a/drivers/phy/renesas/phy-rcar-gen3-usb2.c b/drivers/phy/renesas/phy-rcar-gen3-usb2.c
index b7f6b1324395..49ec67d46ccc 100644
--- a/drivers/phy/renesas/phy-rcar-gen3-usb2.c
+++ b/drivers/phy/renesas/phy-rcar-gen3-usb2.c
@@ -614,7 +614,7 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
return PTR_ERR(channel->base);
/* call request_irq for OTG */
- irq = platform_get_irq(pdev, 0);
+ irq = platform_get_irq_optional(pdev, 0);
if (irq >= 0) {
INIT_WORK(&channel->work, rcar_gen3_phy_usb2_work);
irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq,
diff --git a/drivers/usb/cdns3/Kconfig b/drivers/usb/cdns3/Kconfig
index d0331613a355..2a1e89d12ed9 100644
--- a/drivers/usb/cdns3/Kconfig
+++ b/drivers/usb/cdns3/Kconfig
@@ -43,4 +43,14 @@ config USB_CDNS3_PCI_WRAP
If you choose to build this driver as module it will
be dynamically linked and module will be called cdns3-pci.ko
+config USB_CDNS3_TI
+ tristate "Cadence USB3 support on TI platforms"
+ depends on ARCH_K3 || COMPILE_TEST
+ default USB_CDNS3
+ help
+ Say 'Y' or 'M' here if you are building for Texas Instruments
+ platforms that contain Cadence USB3 controller core.
+
+ e.g. J721e.
+
endif
diff --git a/drivers/usb/cdns3/Makefile b/drivers/usb/cdns3/Makefile
index a703547350bb..948e6b88d1a9 100644
--- a/drivers/usb/cdns3/Makefile
+++ b/drivers/usb/cdns3/Makefile
@@ -14,3 +14,4 @@ endif
cdns3-$(CONFIG_USB_CDNS3_HOST) += host.o
obj-$(CONFIG_USB_CDNS3_PCI_WRAP) += cdns3-pci-wrap.o
+obj-$(CONFIG_USB_CDNS3_TI) += cdns3-ti.o
diff --git a/drivers/usb/cdns3/cdns3-ti.c b/drivers/usb/cdns3/cdns3-ti.c
new file mode 100644
index 000000000000..c6a79ca15858
--- /dev/null
+++ b/drivers/usb/cdns3/cdns3-ti.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0
+/**
+ * cdns3-ti.c - TI specific Glue layer for Cadence USB Controller
+ *
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
+ */
+
+#include <linux/bits.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+
+/* USB Wrapper register offsets */
+#define USBSS_PID 0x0
+#define USBSS_W1 0x4
+#define USBSS_STATIC_CONFIG 0x8
+#define USBSS_PHY_TEST 0xc
+#define USBSS_DEBUG_CTRL 0x10
+#define USBSS_DEBUG_INFO 0x14
+#define USBSS_DEBUG_LINK_STATE 0x18
+#define USBSS_DEVICE_CTRL 0x1c
+
+/* Wrapper 1 register bits */
+#define USBSS_W1_PWRUP_RST BIT(0)
+#define USBSS_W1_OVERCURRENT_SEL BIT(8)
+#define USBSS_W1_MODESTRAP_SEL BIT(9)
+#define USBSS_W1_OVERCURRENT BIT(16)
+#define USBSS_W1_MODESTRAP_MASK GENMASK(18, 17)
+#define USBSS_W1_MODESTRAP_SHIFT 17
+#define USBSS_W1_USB2_ONLY BIT(19)
+
+/* Static config register bits */
+#define USBSS1_STATIC_PLL_REF_SEL_MASK GENMASK(8, 5)
+#define USBSS1_STATIC_PLL_REF_SEL_SHIFT 5
+#define USBSS1_STATIC_LOOPBACK_MODE_MASK GENMASK(4, 3)
+#define USBSS1_STATIC_LOOPBACK_MODE_SHIFT 3
+#define USBSS1_STATIC_VBUS_SEL_MASK GENMASK(2, 1)
+#define USBSS1_STATIC_VBUS_SEL_SHIFT 1
+#define USBSS1_STATIC_LANE_REVERSE BIT(0)
+
+/* Modestrap modes */
+enum modestrap_mode { USBSS_MODESTRAP_MODE_NONE,
+ USBSS_MODESTRAP_MODE_HOST,
+ USBSS_MODESTRAP_MODE_PERIPHERAL};
+
+struct cdns_ti {
+ struct device *dev;
+ void __iomem *usbss;
+ int usb2_only:1;
+ int vbus_divider:1;
+ struct clk *usb2_refclk;
+ struct clk *lpm_clk;
+};
+
+static const int cdns_ti_rate_table[] = { /* in KHZ */
+ 9600,
+ 10000,
+ 12000,
+ 19200,
+ 20000,
+ 24000,
+ 25000,
+ 26000,
+ 38400,
+ 40000,
+ 58000,
+ 50000,
+ 52000,
+};
+
+static inline u32 cdns_ti_readl(struct cdns_ti *data, u32 offset)
+{
+ return readl(data->usbss + offset);
+}
+
+static inline void cdns_ti_writel(struct cdns_ti *data, u32 offset, u32 value)
+{
+ writel(value, data->usbss + offset);
+}
+
+static int cdns_ti_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = pdev->dev.of_node;
+ struct cdns_ti *data;
+ int error;
+ u32 reg;
+ int rate_code, i;
+ unsigned long rate;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, data);
+
+ data->dev = dev;
+
+ data->usbss = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(data->usbss)) {
+ dev_err(dev, "can't map IOMEM resource\n");
+ return PTR_ERR(data->usbss);
+ }
+
+ data->usb2_refclk = devm_clk_get(dev, "ref");
+ if (IS_ERR(data->usb2_refclk)) {
+ dev_err(dev, "can't get usb2_refclk\n");
+ return PTR_ERR(data->usb2_refclk);
+ }
+
+ data->lpm_clk = devm_clk_get(dev, "lpm");
+ if (IS_ERR(data->lpm_clk)) {
+ dev_err(dev, "can't get lpm_clk\n");
+ return PTR_ERR(data->lpm_clk);
+ }
+
+ rate = clk_get_rate(data->usb2_refclk);
+ rate /= 1000; /* To KHz */
+ for (i = 0; i < ARRAY_SIZE(cdns_ti_rate_table); i++) {
+ if (cdns_ti_rate_table[i] == rate)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(cdns_ti_rate_table)) {
+ dev_err(dev, "unsupported usb2_refclk rate: %lu KHz\n", rate);
+ return -EINVAL;
+ }
+
+ rate_code = i;
+
+ pm_runtime_enable(dev);
+ error = pm_runtime_get_sync(dev);
+ if (error < 0) {
+ dev_err(dev, "pm_runtime_get_sync failed: %d\n", error);
+ goto err_get;
+ }
+
+ /* assert RESET */
+ reg = cdns_ti_readl(data, USBSS_W1);
+ reg &= ~USBSS_W1_PWRUP_RST;
+ cdns_ti_writel(data, USBSS_W1, reg);
+
+ /* set static config */
+ reg = cdns_ti_readl(data, USBSS_STATIC_CONFIG);
+ reg &= ~USBSS1_STATIC_PLL_REF_SEL_MASK;
+ reg |= rate_code << USBSS1_STATIC_PLL_REF_SEL_SHIFT;
+
+ reg &= ~USBSS1_STATIC_VBUS_SEL_MASK;
+ data->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider");
+ if (data->vbus_divider)
+ reg |= 1 << USBSS1_STATIC_VBUS_SEL_SHIFT;
+
+ cdns_ti_writel(data, USBSS_STATIC_CONFIG, reg);
+ reg = cdns_ti_readl(data, USBSS_STATIC_CONFIG);
+
+ /* set USB2_ONLY mode if requested */
+ reg = cdns_ti_readl(data, USBSS_W1);
+ data->usb2_only = device_property_read_bool(dev, "ti,usb2-only");
+ if (data->usb2_only)
+ reg |= USBSS_W1_USB2_ONLY;
+
+ /* set default modestrap */
+ reg |= USBSS_W1_MODESTRAP_SEL;
+ reg &= ~USBSS_W1_MODESTRAP_MASK;
+ reg |= USBSS_MODESTRAP_MODE_NONE << USBSS_W1_MODESTRAP_SHIFT;
+ cdns_ti_writel(data, USBSS_W1, reg);
+
+ /* de-assert RESET */
+ reg |= USBSS_W1_PWRUP_RST;
+ cdns_ti_writel(data, USBSS_W1, reg);
+
+ error = of_platform_populate(node, NULL, NULL, dev);
+ if (error) {
+ dev_err(dev, "failed to create children: %d\n", error);
+ goto err;
+ }
+
+ return 0;
+
+err:
+ pm_runtime_put_sync(data->dev);
+err_get:
+ pm_runtime_disable(data->dev);
+
+ return error;
+}
+
+static int cdns_ti_remove_core(struct device *dev, void *c)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ platform_device_unregister(pdev);
+
+ return 0;
+}
+
+static int cdns_ti_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+
+ device_for_each_child(dev, NULL, cdns_ti_remove_core);
+ pm_runtime_put_sync(dev);
+ pm_runtime_disable(dev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static const struct of_device_id cdns_ti_of_match[] = {
+ { .compatible = "ti,j721e-usb", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cdns_ti_of_match);
+
+static struct platform_driver cdns_ti_driver = {
+ .probe = cdns_ti_probe,
+ .remove = cdns_ti_remove,
+ .driver = {
+ .name = "cdns3-ti",
+ .of_match_table = cdns_ti_of_match,
+ },
+};
+
+module_platform_driver(cdns_ti_driver);
+
+MODULE_ALIAS("platform:cdns3-ti");
+MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Cadence USB3 TI Glue Layer");
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index df8812c30640..d8e7eb2f97b9 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -274,11 +274,14 @@ static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event)
switch (event) {
case CI_HDRC_IMX_HSIC_ACTIVE_EVENT:
- ret = pinctrl_select_state(data->pinctrl,
- data->pinctrl_hsic_active);
- if (ret)
- dev_err(dev, "hsic_active select failed, err=%d\n",
- ret);
+ if (data->pinctrl) {
+ ret = pinctrl_select_state(data->pinctrl,
+ data->pinctrl_hsic_active);
+ if (ret)
+ dev_err(dev,
+ "hsic_active select failed, err=%d\n",
+ ret);
+ }
break;
case CI_HDRC_IMX_HSIC_SUSPEND_EVENT:
ret = imx_usbmisc_hsic_set_connect(data->usbmisc_data);
@@ -306,7 +309,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
const struct ci_hdrc_imx_platform_flag *imx_platform_flag;
struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
- struct pinctrl_state *pinctrl_hsic_idle;
of_id = of_match_device(ci_hdrc_imx_dt_ids, dev);
if (!of_id)
@@ -330,12 +332,42 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
pdata.flags |= CI_HDRC_IMX_IS_HSIC;
data->usbmisc_data->hsic = 1;
data->pinctrl = devm_pinctrl_get(dev);
- if (IS_ERR(data->pinctrl)) {
- dev_err(dev, "pinctrl get failed, err=%ld\n",
+ if (PTR_ERR(data->pinctrl) == -ENODEV)
+ data->pinctrl = NULL;
+ else if (IS_ERR(data->pinctrl)) {
+ if (PTR_ERR(data->pinctrl) != -EPROBE_DEFER)
+ dev_err(dev, "pinctrl get failed, err=%ld\n",
PTR_ERR(data->pinctrl));
return PTR_ERR(data->pinctrl);
}
+ data->hsic_pad_regulator =
+ devm_regulator_get_optional(dev, "hsic");
+ if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) {
+ /* no pad regualator is needed */
+ data->hsic_pad_regulator = NULL;
+ } else if (IS_ERR(data->hsic_pad_regulator)) {
+ if (PTR_ERR(data->hsic_pad_regulator) != -EPROBE_DEFER)
+ dev_err(dev,
+ "Get HSIC pad regulator error: %ld\n",
+ PTR_ERR(data->hsic_pad_regulator));
+ return PTR_ERR(data->hsic_pad_regulator);
+ }
+
+ if (data->hsic_pad_regulator) {
+ ret = regulator_enable(data->hsic_pad_regulator);
+ if (ret) {
+ dev_err(dev,
+ "Failed to enable HSIC pad regulator\n");
+ return ret;
+ }
+ }
+ }
+
+ /* HSIC pinctrl handling */
+ if (data->pinctrl) {
+ struct pinctrl_state *pinctrl_hsic_idle;
+
pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle");
if (IS_ERR(pinctrl_hsic_idle)) {
dev_err(dev,
@@ -358,27 +390,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
PTR_ERR(data->pinctrl_hsic_active));
return PTR_ERR(data->pinctrl_hsic_active);
}
-
- data->hsic_pad_regulator = devm_regulator_get(dev, "hsic");
- if (PTR_ERR(data->hsic_pad_regulator) == -EPROBE_DEFER) {
- return -EPROBE_DEFER;
- } else if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) {
- /* no pad regualator is needed */
- data->hsic_pad_regulator = NULL;
- } else if (IS_ERR(data->hsic_pad_regulator)) {
- dev_err(dev, "Get HSIC pad regulator error: %ld\n",
- PTR_ERR(data->hsic_pad_regulator));
- return PTR_ERR(data->hsic_pad_regulator);
- }
-
- if (data->hsic_pad_regulator) {
- ret = regulator_enable(data->hsic_pad_regulator);
- if (ret) {
- dev_err(dev,
- "Failed to enable HSIC pad regulator\n");
- return ret;
- }
- }
}
if (pdata.flags & CI_HDRC_PMQOS)
@@ -433,6 +444,16 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
goto err_clk;
}
+ if (data->usbmisc_data) {
+ if (!IS_ERR(pdata.id_extcon.edev) ||
+ of_property_read_bool(np, "usb-role-switch"))
+ data->usbmisc_data->ext_id = 1;
+
+ if (!IS_ERR(pdata.vbus_extcon.edev) ||
+ of_property_read_bool(np, "usb-role-switch"))
+ data->usbmisc_data->ext_vbus = 1;
+ }
+
ret = imx_usbmisc_init_post(data->usbmisc_data);
if (ret) {
dev_err(dev, "usbmisc post failed, ret=%d\n", ret);
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h
index c842e03f8767..de2aac9a2868 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.h
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -22,6 +22,8 @@ struct imx_usbmisc_data {
unsigned int evdo:1; /* set external vbus divider option */
unsigned int ulpi:1; /* connected to an ULPI phy */
unsigned int hsic:1; /* HSIC controlller */
+ unsigned int ext_id:1; /* ID from exteranl event */
+ unsigned int ext_vbus:1; /* Vbus from exteranl event */
};
int imx_usbmisc_init(struct imx_usbmisc_data *data);
diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c
index 12025358bb3c..0c9911d44ee5 100644
--- a/drivers/usb/chipidea/ci_hdrc_tegra.c
+++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
@@ -24,35 +24,23 @@ struct tegra_udc_soc_info {
unsigned long flags;
};
-static const struct tegra_udc_soc_info tegra20_udc_soc_info = {
- .flags = CI_HDRC_REQUIRES_ALIGNED_DMA,
-};
-
-static const struct tegra_udc_soc_info tegra30_udc_soc_info = {
- .flags = CI_HDRC_REQUIRES_ALIGNED_DMA,
-};
-
-static const struct tegra_udc_soc_info tegra114_udc_soc_info = {
- .flags = CI_HDRC_REQUIRES_ALIGNED_DMA,
-};
-
-static const struct tegra_udc_soc_info tegra124_udc_soc_info = {
+static const struct tegra_udc_soc_info tegra_udc_soc_info = {
.flags = CI_HDRC_REQUIRES_ALIGNED_DMA,
};
static const struct of_device_id tegra_udc_of_match[] = {
{
.compatible = "nvidia,tegra20-udc",
- .data = &tegra20_udc_soc_info,
+ .data = &tegra_udc_soc_info,
}, {
.compatible = "nvidia,tegra30-udc",
- .data = &tegra30_udc_soc_info,
+ .data = &tegra_udc_soc_info,
}, {
.compatible = "nvidia,tegra114-udc",
- .data = &tegra114_udc_soc_info,
+ .data = &tegra_udc_soc_info,
}, {
.compatible = "nvidia,tegra124-udc",
- .data = &tegra124_udc_soc_info,
+ .data = &tegra_udc_soc_info,
}, {
/* sentinel */
}
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 98ee575ee500..dce5db41501c 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -683,7 +683,7 @@ static int ci_get_platdata(struct device *dev,
if (platdata->dr_mode != USB_DR_MODE_PERIPHERAL) {
/* Get the vbus regulator */
- platdata->reg_vbus = devm_regulator_get(dev, "vbus");
+ platdata->reg_vbus = devm_regulator_get_optional(dev, "vbus");
if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) {
return -EPROBE_DEFER;
} else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) {
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index fcc91a338875..e0376ee646ad 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -342,7 +342,7 @@ DEFINE_SHOW_ATTRIBUTE(ci_registers);
*/
void dbg_create_files(struct ci_hdrc *ci)
{
- ci->debugfs = debugfs_create_dir(dev_name(ci->dev), NULL);
+ ci->debugfs = debugfs_create_dir(dev_name(ci->dev), usb_debug_root);
debugfs_create_file("device", S_IRUGO, ci->debugfs, ci,
&ci_device_fops);
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 8f18e7b6cadf..ffaf46f5d062 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1524,42 +1524,53 @@ static const struct usb_ep_ops usb_ep_ops = {
/******************************************************************************
* GADGET block
*****************************************************************************/
+/**
+ * ci_hdrc_gadget_connect: caller makes sure gadget driver is binded
+ */
+static void ci_hdrc_gadget_connect(struct usb_gadget *_gadget, int is_active)
+{
+ struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
+ unsigned long flags;
+
+ if (is_active) {
+ pm_runtime_get_sync(&_gadget->dev);
+ hw_device_reset(ci);
+ spin_lock_irqsave(&ci->lock, flags);
+ if (ci->driver) {
+ hw_device_state(ci, ci->ep0out->qh.dma);
+ usb_gadget_set_state(_gadget, USB_STATE_POWERED);
+ usb_udc_vbus_handler(_gadget, true);
+ }
+ spin_unlock_irqrestore(&ci->lock, flags);
+ } else {
+ usb_udc_vbus_handler(_gadget, false);
+ if (ci->driver)
+ ci->driver->disconnect(&ci->gadget);
+ hw_device_state(ci, 0);
+ if (ci->platdata->notify_event)
+ ci->platdata->notify_event(ci,
+ CI_HDRC_CONTROLLER_STOPPED_EVENT);
+ _gadget_stop_activity(&ci->gadget);
+ pm_runtime_put_sync(&_gadget->dev);
+ usb_gadget_set_state(_gadget, USB_STATE_NOTATTACHED);
+ }
+}
+
static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
{
struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
unsigned long flags;
- int gadget_ready = 0;
spin_lock_irqsave(&ci->lock, flags);
ci->vbus_active = is_active;
- if (ci->driver)
- gadget_ready = 1;
spin_unlock_irqrestore(&ci->lock, flags);
if (ci->usb_phy)
usb_phy_set_charger_state(ci->usb_phy, is_active ?
USB_CHARGER_PRESENT : USB_CHARGER_ABSENT);
- if (gadget_ready) {
- if (is_active) {
- pm_runtime_get_sync(&_gadget->dev);
- hw_device_reset(ci);
- hw_device_state(ci, ci->ep0out->qh.dma);
- usb_gadget_set_state(_gadget, USB_STATE_POWERED);
- usb_udc_vbus_handler(_gadget, true);
- } else {
- usb_udc_vbus_handler(_gadget, false);
- if (ci->driver)
- ci->driver->disconnect(&ci->gadget);
- hw_device_state(ci, 0);
- if (ci->platdata->notify_event)
- ci->platdata->notify_event(ci,
- CI_HDRC_CONTROLLER_STOPPED_EVENT);
- _gadget_stop_activity(&ci->gadget);
- pm_runtime_put_sync(&_gadget->dev);
- usb_gadget_set_state(_gadget, USB_STATE_NOTATTACHED);
- }
- }
+ if (ci->driver)
+ ci_hdrc_gadget_connect(_gadget, is_active);
return 0;
}
@@ -1612,7 +1623,7 @@ static int ci_udc_selfpowered(struct usb_gadget *_gadget, int is_on)
}
/* Change Data+ pullup status
- * this func is used by usb_gadget_connect/disconnet
+ * this func is used by usb_gadget_connect/disconnect
*/
static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on)
{
@@ -1785,18 +1796,10 @@ static int ci_udc_start(struct usb_gadget *gadget,
return retval;
}
- pm_runtime_get_sync(&ci->gadget.dev);
- if (ci->vbus_active) {
- hw_device_reset(ci);
- } else {
+ if (ci->vbus_active)
+ ci_hdrc_gadget_connect(gadget, 1);
+ else
usb_udc_vbus_handler(&ci->gadget, false);
- pm_runtime_put_sync(&ci->gadget.dev);
- return retval;
- }
-
- retval = hw_device_state(ci, ci->ep0out->qh.dma);
- if (retval)
- pm_runtime_put_sync(&ci->gadget.dev);
return retval;
}
@@ -1826,6 +1829,7 @@ static int ci_udc_stop(struct usb_gadget *gadget)
unsigned long flags;
spin_lock_irqsave(&ci->lock, flags);
+ ci->driver = NULL;
if (ci->vbus_active) {
hw_device_state(ci, 0);
@@ -1838,7 +1842,6 @@ static int ci_udc_stop(struct usb_gadget *gadget)
pm_runtime_put(&ci->gadget.dev);
}
- ci->driver = NULL;
spin_unlock_irqrestore(&ci->lock, flags);
ci_udc_stop_for_otg_fsm(ci);
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index 078c1fdce493..e81e33c26e6c 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -100,6 +100,9 @@
#define MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID MX7D_USB_VBUS_WAKEUP_SOURCE(2)
#define MX7D_USB_VBUS_WAKEUP_SOURCE_SESS_END MX7D_USB_VBUS_WAKEUP_SOURCE(3)
+#define MX6_USB_OTG_WAKEUP_BITS (MX6_BM_WAKEUP_ENABLE | MX6_BM_VBUS_WAKEUP | \
+ MX6_BM_ID_WAKEUP)
+
struct usbmisc_ops {
/* It's called once when probe a usb device */
int (*init)(struct imx_usbmisc_data *data);
@@ -330,14 +333,25 @@ static int usbmisc_imx53_init(struct imx_usbmisc_data *data)
return 0;
}
+static u32 usbmisc_wakeup_setting(struct imx_usbmisc_data *data)
+{
+ u32 wakeup_setting = MX6_USB_OTG_WAKEUP_BITS;
+
+ if (data->ext_id)
+ wakeup_setting &= ~MX6_BM_ID_WAKEUP;
+
+ if (data->ext_vbus)
+ wakeup_setting &= ~MX6_BM_VBUS_WAKEUP;
+
+ return wakeup_setting;
+}
+
static int usbmisc_imx6q_set_wakeup
(struct imx_usbmisc_data *data, bool enabled)
{
struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
unsigned long flags;
u32 val;
- u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE |
- MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP);
int ret = 0;
if (data->index > 3)
@@ -346,11 +360,12 @@ static int usbmisc_imx6q_set_wakeup
spin_lock_irqsave(&usbmisc->lock, flags);
val = readl(usbmisc->base + data->index * 4);
if (enabled) {
- val |= wakeup_setting;
+ val &= ~MX6_USB_OTG_WAKEUP_BITS;
+ val |= usbmisc_wakeup_setting(data);
} else {
if (val & MX6_BM_WAKEUP_INTR)
pr_debug("wakeup int at ci_hdrc.%d\n", data->index);
- val &= ~wakeup_setting;
+ val &= ~MX6_USB_OTG_WAKEUP_BITS;
}
writel(val, usbmisc->base + data->index * 4);
spin_unlock_irqrestore(&usbmisc->lock, flags);
@@ -547,17 +562,17 @@ static int usbmisc_imx7d_set_wakeup
struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
unsigned long flags;
u32 val;
- u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE |
- MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP);
spin_lock_irqsave(&usbmisc->lock, flags);
val = readl(usbmisc->base);
if (enabled) {
- writel(val | wakeup_setting, usbmisc->base);
+ val &= ~MX6_USB_OTG_WAKEUP_BITS;
+ val |= usbmisc_wakeup_setting(data);
+ writel(val, usbmisc->base);
} else {
if (val & MX6_BM_WAKEUP_INTR)
dev_dbg(data->dev, "wakeup int\n");
- writel(val & ~wakeup_setting, usbmisc->base);
+ writel(val & ~MX6_USB_OTG_WAKEUP_BITS, usbmisc->base);
}
spin_unlock_irqrestore(&usbmisc->lock, flags);
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 1ac1095bfeac..5f40117e68e7 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -805,10 +805,10 @@ int usb_get_configuration(struct usb_device *dev)
{
struct device *ddev = &dev->dev;
int ncfg = dev->descriptor.bNumConfigurations;
- int result = -ENOMEM;
unsigned int cfgno, length;
unsigned char *bigbuffer;
struct usb_config_descriptor *desc;
+ int result;
if (ncfg > USB_MAXCONFIG) {
dev_warn(ddev, "too many configurations: %d, "
@@ -824,16 +824,16 @@ int usb_get_configuration(struct usb_device *dev)
length = ncfg * sizeof(struct usb_host_config);
dev->config = kzalloc(length, GFP_KERNEL);
if (!dev->config)
- goto err2;
+ return -ENOMEM;
length = ncfg * sizeof(char *);
dev->rawdescriptors = kzalloc(length, GFP_KERNEL);
if (!dev->rawdescriptors)
- goto err2;
+ return -ENOMEM;
desc = kmalloc(USB_DT_CONFIG_SIZE, GFP_KERNEL);
if (!desc)
- goto err2;
+ return -ENOMEM;
for (cfgno = 0; cfgno < ncfg; cfgno++) {
/* We grab just the first descriptor so we know how long
@@ -895,9 +895,7 @@ int usb_get_configuration(struct usb_device *dev)
err:
kfree(desc);
dev->descriptor.bNumConfigurations = cfgno;
-err2:
- if (result == -ENOMEM)
- dev_err(ddev, "out of memory\n");
+
return result;
}
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 3f899552f6e3..879d03f5127c 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -764,8 +764,15 @@ static int claimintf(struct usb_dev_state *ps, unsigned int ifnum)
intf = usb_ifnum_to_if(dev, ifnum);
if (!intf)
err = -ENOENT;
- else
+ else {
+ unsigned int old_suppress;
+
+ /* suppress uevents while claiming interface */
+ old_suppress = dev_get_uevent_suppress(&intf->dev);
+ dev_set_uevent_suppress(&intf->dev, 1);
err = usb_driver_claim_interface(&usbfs_driver, intf, ps);
+ dev_set_uevent_suppress(&intf->dev, old_suppress);
+ }
if (err == 0)
set_bit(ifnum, &ps->ifclaimed);
return err;
@@ -785,7 +792,13 @@ static int releaseintf(struct usb_dev_state *ps, unsigned int ifnum)
if (!intf)
err = -ENOENT;
else if (test_and_clear_bit(ifnum, &ps->ifclaimed)) {
+ unsigned int old_suppress;
+
+ /* suppress uevents while releasing interface */
+ old_suppress = dev_get_uevent_suppress(&intf->dev);
+ dev_set_uevent_suppress(&intf->dev, 1);
usb_driver_release_interface(&usbfs_driver, intf);
+ dev_set_uevent_suppress(&intf->dev, old_suppress);
err = 0;
}
return err;
@@ -1550,10 +1563,10 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
uurb->buffer_length = le16_to_cpu(dr->wLength);
uurb->buffer += 8;
if ((dr->bRequestType & USB_DIR_IN) && uurb->buffer_length) {
- is_in = 1;
+ is_in = true;
uurb->endpoint |= USB_DIR_IN;
} else {
- is_in = 0;
+ is_in = false;
uurb->endpoint &= ~USB_DIR_IN;
}
if (is_in)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 236313f41f4a..1709895387b9 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4930,6 +4930,91 @@ hub_power_remaining(struct usb_hub *hub)
return remaining;
}
+
+static int descriptors_changed(struct usb_device *udev,
+ struct usb_device_descriptor *old_device_descriptor,
+ struct usb_host_bos *old_bos)
+{
+ int changed = 0;
+ unsigned index;
+ unsigned serial_len = 0;
+ unsigned len;
+ unsigned old_length;
+ int length;
+ char *buf;
+
+ if (memcmp(&udev->descriptor, old_device_descriptor,
+ sizeof(*old_device_descriptor)) != 0)
+ return 1;
+
+ if ((old_bos && !udev->bos) || (!old_bos && udev->bos))
+ return 1;
+ if (udev->bos) {
+ len = le16_to_cpu(udev->bos->desc->wTotalLength);
+ if (len != le16_to_cpu(old_bos->desc->wTotalLength))
+ return 1;
+ if (memcmp(udev->bos->desc, old_bos->desc, len))
+ return 1;
+ }
+
+ /* Since the idVendor, idProduct, and bcdDevice values in the
+ * device descriptor haven't changed, we will assume the
+ * Manufacturer and Product strings haven't changed either.
+ * But the SerialNumber string could be different (e.g., a
+ * different flash card of the same brand).
+ */
+ if (udev->serial)
+ serial_len = strlen(udev->serial) + 1;
+
+ len = serial_len;
+ for (index = 0; index < udev->descriptor.bNumConfigurations; index++) {
+ old_length = le16_to_cpu(udev->config[index].desc.wTotalLength);
+ len = max(len, old_length);
+ }
+
+ buf = kmalloc(len, GFP_NOIO);
+ if (!buf)
+ /* assume the worst */
+ return 1;
+
+ for (index = 0; index < udev->descriptor.bNumConfigurations; index++) {
+ old_length = le16_to_cpu(udev->config[index].desc.wTotalLength);
+ length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf,
+ old_length);
+ if (length != old_length) {
+ dev_dbg(&udev->dev, "config index %d, error %d\n",
+ index, length);
+ changed = 1;
+ break;
+ }
+ if (memcmp(buf, udev->rawdescriptors[index], old_length)
+ != 0) {
+ dev_dbg(&udev->dev, "config index %d changed (#%d)\n",
+ index,
+ ((struct usb_config_descriptor *) buf)->
+ bConfigurationValue);
+ changed = 1;
+ break;
+ }
+ }
+
+ if (!changed && serial_len) {
+ length = usb_string(udev, udev->descriptor.iSerialNumber,
+ buf, serial_len);
+ if (length + 1 != serial_len) {
+ dev_dbg(&udev->dev, "serial string error %d\n",
+ length);
+ changed = 1;
+ } else if (memcmp(buf, udev->serial, length) != 0) {
+ dev_dbg(&udev->dev, "serial string changed\n");
+ changed = 1;
+ }
+ }
+
+ kfree(buf);
+ return changed;
+}
+
static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
u16 portchange)
{
@@ -5167,7 +5252,9 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
{
struct usb_port *port_dev = hub->ports[port1 - 1];
struct usb_device *udev = port_dev->child;
+ struct usb_device_descriptor descriptor;
int status = -ENODEV;
+ int retval;
dev_dbg(&port_dev->dev, "status %04x, change %04x, %s\n", portstatus,
portchange, portspeed(hub, portstatus));
@@ -5188,7 +5275,30 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
if ((portstatus & USB_PORT_STAT_CONNECTION) && udev &&
udev->state != USB_STATE_NOTATTACHED) {
if (portstatus & USB_PORT_STAT_ENABLE) {
- status = 0; /* Nothing to do */
+ /*
+ * USB-3 connections are initialized automatically by
+ * the hostcontroller hardware. Therefore check for
+ * changed device descriptors before resuscitating the
+ * device.
+ */
+ descriptor = udev->descriptor;
+ retval = usb_get_device_descriptor(udev,
+ sizeof(udev->descriptor));
+ if (retval < 0) {
+ dev_dbg(&udev->dev,
+ "can't read device descriptor %d\n",
+ retval);
+ } else {
+ if (descriptors_changed(udev, &descriptor,
+ udev->bos)) {
+ dev_dbg(&udev->dev,
+ "device descriptor has changed\n");
+ /* for disconnect() calls */
+ udev->descriptor = descriptor;
+ } else {
+ status = 0; /* Nothing to do */
+ }
+ }
#ifdef CONFIG_PM
} else if (udev->state == USB_STATE_SUSPENDED &&
udev->persist_enabled) {
@@ -5550,90 +5660,6 @@ void usb_hub_cleanup(void)
usb_deregister(&hub_driver);
} /* usb_hub_cleanup() */
-static int descriptors_changed(struct usb_device *udev,
- struct usb_device_descriptor *old_device_descriptor,
- struct usb_host_bos *old_bos)
-{
- int changed = 0;
- unsigned index;
- unsigned serial_len = 0;
- unsigned len;
- unsigned old_length;
- int length;
- char *buf;
-
- if (memcmp(&udev->descriptor, old_device_descriptor,
- sizeof(*old_device_descriptor)) != 0)
- return 1;
-
- if ((old_bos && !udev->bos) || (!old_bos && udev->bos))
- return 1;
- if (udev->bos) {
- len = le16_to_cpu(udev->bos->desc->wTotalLength);
- if (len != le16_to_cpu(old_bos->desc->wTotalLength))
- return 1;
- if (memcmp(udev->bos->desc, old_bos->desc, len))
- return 1;
- }
-
- /* Since the idVendor, idProduct, and bcdDevice values in the
- * device descriptor haven't changed, we will assume the
- * Manufacturer and Product strings haven't changed either.
- * But the SerialNumber string could be different (e.g., a
- * different flash card of the same brand).
- */
- if (udev->serial)
- serial_len = strlen(udev->serial) + 1;
-
- len = serial_len;
- for (index = 0; index < udev->descriptor.bNumConfigurations; index++) {
- old_length = le16_to_cpu(udev->config[index].desc.wTotalLength);
- len = max(len, old_length);
- }
-
- buf = kmalloc(len, GFP_NOIO);
- if (!buf)
- /* assume the worst */
- return 1;
-
- for (index = 0; index < udev->descriptor.bNumConfigurations; index++) {
- old_length = le16_to_cpu(udev->config[index].desc.wTotalLength);
- length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf,
- old_length);
- if (length != old_length) {
- dev_dbg(&udev->dev, "config index %d, error %d\n",
- index, length);
- changed = 1;
- break;
- }
- if (memcmp(buf, udev->rawdescriptors[index], old_length)
- != 0) {
- dev_dbg(&udev->dev, "config index %d changed (#%d)\n",
- index,
- ((struct usb_config_descriptor *) buf)->
- bConfigurationValue);
- changed = 1;
- break;
- }
- }
-
- if (!changed && serial_len) {
- length = usb_string(udev, udev->descriptor.iSerialNumber,
- buf, serial_len);
- if (length + 1 != serial_len) {
- dev_dbg(&udev->dev, "serial string error %d\n",
- length);
- changed = 1;
- } else if (memcmp(buf, udev->serial, length) != 0) {
- dev_dbg(&udev->dev, "serial string changed\n");
- changed = 1;
- }
- }
-
- kfree(buf);
- return changed;
-}
-
/**
* usb_reset_and_verify_device - perform a USB port reset to reinitialize a device
* @udev: device to reset (not in SUSPENDED or NOTATTACHED state)
@@ -5814,7 +5840,7 @@ re_enumerate_no_bos:
/**
* usb_reset_device - warn interface drivers and perform a USB port reset
- * @udev: device to reset (not in SUSPENDED or NOTATTACHED state)
+ * @udev: device to reset (not in NOTATTACHED state)
*
* Warns all drivers bound to registered interfaces (using their pre_reset
* method), performs the port reset, and then lets the drivers know that
@@ -5842,8 +5868,7 @@ int usb_reset_device(struct usb_device *udev)
struct usb_host_config *config = udev->actconfig;
struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent);
- if (udev->state == USB_STATE_NOTATTACHED ||
- udev->state == USB_STATE_SUSPENDED) {
+ if (udev->state == USB_STATE_NOTATTACHED) {
dev_dbg(&udev->dev, "device reset not allowed in state %d\n",
udev->state);
return -EINVAL;
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index 8e41d70fd298..78a4925aa118 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -524,7 +524,7 @@ int dwc2_core_reset(struct dwc2_hsotg *hsotg, bool skip_wait)
greset |= GRSTCTL_CSFTRST;
dwc2_writel(hsotg, greset, GRSTCTL);
- if (dwc2_hsotg_wait_bit_clear(hsotg, GRSTCTL, GRSTCTL_CSFTRST, 50)) {
+ if (dwc2_hsotg_wait_bit_clear(hsotg, GRSTCTL, GRSTCTL_CSFTRST, 10000)) {
dev_warn(hsotg->dev, "%s: HANG! Soft Reset timeout GRSTCTL GRSTCTL_CSFTRST\n",
__func__);
return -EBUSY;
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index d08d070a0fb6..968e03b89d04 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -134,7 +134,7 @@ struct dwc2_hsotg_req;
* @target_frame: Targeted frame num to setup next ISOC transfer
* @frame_overrun: Indicates SOF number overrun in DSTS
*
- * This is the driver's state for each registered enpoint, allowing it
+ * This is the driver's state for each registered endpoint, allowing it
* to keep track of transactions that need doing. Each endpoint has a
* lock to protect the state, to try and avoid using an overall lock
* for the host controller as much as possible.
diff --git a/drivers/usb/dwc2/debugfs.c b/drivers/usb/dwc2/debugfs.c
index 7f62f4cdc265..b8f2790abf91 100644
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@ -770,7 +770,7 @@ int dwc2_debugfs_init(struct dwc2_hsotg *hsotg)
int ret;
struct dentry *root;
- root = debugfs_create_dir(dev_name(hsotg->dev), NULL);
+ root = debugfs_create_dir(dev_name(hsotg->dev), usb_debug_root);
hsotg->debug_root = root;
debugfs_create_file("params", 0444, root, hsotg, &params_fops);
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 556a876c7896..206caa0ea1c6 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -97,24 +97,24 @@ config USB_DWC3_KEYSTONE
Say 'Y' or 'M' here if you have one such device
config USB_DWC3_MESON_G12A
- tristate "Amlogic Meson G12A Platforms"
- depends on OF && COMMON_CLK
- depends on ARCH_MESON || COMPILE_TEST
- default USB_DWC3
- select USB_ROLE_SWITCH
+ tristate "Amlogic Meson G12A Platforms"
+ depends on OF && COMMON_CLK
+ depends on ARCH_MESON || COMPILE_TEST
+ default USB_DWC3
+ select USB_ROLE_SWITCH
select REGMAP_MMIO
- help
- Support USB2/3 functionality in Amlogic G12A platforms.
- Say 'Y' or 'M' if you have one such device.
+ help
+ Support USB2/3 functionality in Amlogic G12A platforms.
+ Say 'Y' or 'M' if you have one such device.
config USB_DWC3_OF_SIMPLE
- tristate "Generic OF Simple Glue Layer"
- depends on OF && COMMON_CLK
- default USB_DWC3
- help
- Support USB2/3 functionality in simple SoC integrations.
- Currently supports Xilinx and Qualcomm DWC USB3 IP.
- Say 'Y' or 'M' if you have one such device.
+ tristate "Generic OF Simple Glue Layer"
+ depends on OF && COMMON_CLK
+ default USB_DWC3
+ help
+ Support USB2/3 functionality in simple SoC integrations.
+ Currently supports Xilinx and Qualcomm DWC USB3 IP.
+ Say 'Y' or 'M' if you have one such device.
config USB_DWC3_ST
tristate "STMicroelectronics Platforms"
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 97d6ae3c4df2..f561c6c9e8a9 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -566,8 +566,11 @@ static int dwc3_core_ulpi_init(struct dwc3 *dwc)
*/
static int dwc3_phy_setup(struct dwc3 *dwc)
{
+ unsigned int hw_mode;
u32 reg;
+ hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
+
reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
/*
@@ -585,6 +588,14 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->revision > DWC3_REVISION_194A)
reg |= DWC3_GUSB3PIPECTL_SUSPHY;
+ /*
+ * For DRD controllers, GUSB3PIPECTL.SUSPENDENABLE must be cleared after
+ * power-on reset, and it can be set after core initialization, which is
+ * after device soft-reset during initialization.
+ */
+ if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD)
+ reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
+
if (dwc->u2ss_inp3_quirk)
reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK;
@@ -668,6 +679,14 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->revision > DWC3_REVISION_194A)
reg |= DWC3_GUSB2PHYCFG_SUSPHY;
+ /*
+ * For DRD controllers, GUSB2PHYCFG.SUSPHY must be cleared after
+ * power-on reset, and it can be set after core initialization, which is
+ * after device soft-reset during initialization.
+ */
+ if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD)
+ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+
if (dwc->dis_u2_susphy_quirk)
reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
@@ -902,9 +921,12 @@ static void dwc3_set_incr_burst_type(struct dwc3 *dwc)
*/
static int dwc3_core_init(struct dwc3 *dwc)
{
+ unsigned int hw_mode;
u32 reg;
int ret;
+ hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
+
/*
* Write Linux Version Code to our GUID register so it's easy to figure
* out which kernel version a bug was found.
@@ -940,6 +962,21 @@ static int dwc3_core_init(struct dwc3 *dwc)
if (ret)
goto err0a;
+ if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD &&
+ dwc->revision > DWC3_REVISION_194A) {
+ if (!dwc->dis_u3_susphy_quirk) {
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
+ reg |= DWC3_GUSB3PIPECTL_SUSPHY;
+ dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
+ }
+
+ if (!dwc->dis_u2_susphy_quirk) {
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+ reg |= DWC3_GUSB2PHYCFG_SUSPHY;
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+ }
+ }
+
dwc3_core_setup_global_control(dwc);
dwc3_core_num_eps(dwc);
diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h
index 9baabed87d61..e56beb9d1e36 100644
--- a/drivers/usb/dwc3/debug.h
+++ b/drivers/usb/dwc3/debug.h
@@ -112,7 +112,7 @@ dwc3_gadget_link_string(enum dwc3_link_state link_state)
case DWC3_LINK_STATE_RESUME:
return "Resume";
default:
- return "UNKNOWN link state\n";
+ return "UNKNOWN link state";
}
}
@@ -141,7 +141,7 @@ dwc3_gadget_hs_link_string(enum dwc3_link_state link_state)
case DWC3_LINK_STATE_RESUME:
return "Resume";
default:
- return "UNKNOWN link state\n";
+ return "UNKNOWN link state";
}
}
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index 1c792710348f..4fe8b1e1485c 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -916,7 +916,7 @@ void dwc3_debugfs_init(struct dwc3 *dwc)
dwc->regset->nregs = ARRAY_SIZE(dwc3_regs);
dwc->regset->base = dwc->regs - DWC3_GLOBALS_REGS_START;
- root = debugfs_create_dir(dev_name(dwc->dev), NULL);
+ root = debugfs_create_dir(dev_name(dwc->dev), usb_debug_root);
dwc->root = root;
debugfs_create_regset32("regdump", S_IRUGO, root, dwc->regset);
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index bdac3e7d7b18..e64754be47b4 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -110,12 +110,9 @@ err_resetc_put:
return ret;
}
-static int dwc3_of_simple_remove(struct platform_device *pdev)
+static void __dwc3_of_simple_teardown(struct dwc3_of_simple *simple)
{
- struct dwc3_of_simple *simple = platform_get_drvdata(pdev);
- struct device *dev = &pdev->dev;
-
- of_platform_depopulate(dev);
+ of_platform_depopulate(simple->dev);
clk_bulk_disable_unprepare(simple->num_clocks, simple->clks);
clk_bulk_put_all(simple->num_clocks, simple->clks);
@@ -126,13 +123,27 @@ static int dwc3_of_simple_remove(struct platform_device *pdev)
reset_control_put(simple->resets);
- pm_runtime_disable(dev);
- pm_runtime_put_noidle(dev);
- pm_runtime_set_suspended(dev);
+ pm_runtime_disable(simple->dev);
+ pm_runtime_put_noidle(simple->dev);
+ pm_runtime_set_suspended(simple->dev);
+}
+
+static int dwc3_of_simple_remove(struct platform_device *pdev)
+{
+ struct dwc3_of_simple *simple = platform_get_drvdata(pdev);
+
+ __dwc3_of_simple_teardown(simple);
return 0;
}
+static void dwc3_of_simple_shutdown(struct platform_device *pdev)
+{
+ struct dwc3_of_simple *simple = platform_get_drvdata(pdev);
+
+ __dwc3_of_simple_teardown(simple);
+}
+
static int __maybe_unused dwc3_of_simple_runtime_suspend(struct device *dev)
{
struct dwc3_of_simple *simple = dev_get_drvdata(dev);
@@ -190,6 +201,7 @@ MODULE_DEVICE_TABLE(of, of_dwc3_simple_match);
static struct platform_driver dwc3_of_simple_driver = {
.probe = dwc3_of_simple_probe,
.remove = dwc3_of_simple_remove,
+ .shutdown = dwc3_of_simple_shutdown,
.driver = {
.name = "dwc3-of-simple",
.of_match_table = of_dwc3_simple_match,
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 5ec54b69c29c..3b4f67000315 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -794,9 +794,9 @@ static int set_config(struct usb_composite_dev *cdev,
result = 0;
}
- INFO(cdev, "%s config #%d: %s\n",
- usb_speed_string(gadget->speed),
- number, c ? c->label : "unconfigured");
+ DBG(cdev, "%s config #%d: %s\n",
+ usb_speed_string(gadget->speed),
+ number, c ? c->label : "unconfigured");
if (!c)
goto done;
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 33852c2b29d1..ab9ac48a751a 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1544,6 +1544,7 @@ static struct config_group *gadgets_make(
gi->composite.resume = NULL;
gi->composite.max_speed = USB_SPEED_SUPER;
+ spin_lock_init(&gi->spinlock);
mutex_init(&gi->lock);
INIT_LIST_HEAD(&gi->string_list);
INIT_LIST_HEAD(&gi->available_func);
diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c
index 9fc98de83624..7c152c28b26c 100644
--- a/drivers/usb/gadget/function/f_acm.c
+++ b/drivers/usb/gadget/function/f_acm.c
@@ -771,6 +771,24 @@ static struct configfs_item_operations acm_item_ops = {
.release = acm_attr_release,
};
+#ifdef CONFIG_U_SERIAL_CONSOLE
+
+static ssize_t f_acm_console_store(struct config_item *item,
+ const char *page, size_t count)
+{
+ return gserial_set_console(to_f_serial_opts(item)->port_num,
+ page, count);
+}
+
+static ssize_t f_acm_console_show(struct config_item *item, char *page)
+{
+ return gserial_get_console(to_f_serial_opts(item)->port_num, page);
+}
+
+CONFIGFS_ATTR(f_acm_, console);
+
+#endif /* CONFIG_U_SERIAL_CONSOLE */
+
static ssize_t f_acm_port_num_show(struct config_item *item, char *page)
{
return sprintf(page, "%u\n", to_f_serial_opts(item)->port_num);
@@ -779,6 +797,9 @@ static ssize_t f_acm_port_num_show(struct config_item *item, char *page)
CONFIGFS_ATTR_RO(f_acm_, port_num);
static struct configfs_attribute *acm_attrs[] = {
+#ifdef CONFIG_U_SERIAL_CONSOLE
+ &f_acm_attr_console,
+#endif
&f_acm_attr_port_num,
NULL,
};
diff --git a/drivers/usb/gadget/function/f_obex.c b/drivers/usb/gadget/function/f_obex.c
index 55b7f57d2dc7..ab26d84ed95e 100644
--- a/drivers/usb/gadget/function/f_obex.c
+++ b/drivers/usb/gadget/function/f_obex.c
@@ -432,7 +432,7 @@ static struct usb_function_instance *obex_alloc_inst(void)
return ERR_PTR(-ENOMEM);
opts->func_inst.free_func_inst = obex_free_inst;
- ret = gserial_alloc_line(&opts->port_num);
+ ret = gserial_alloc_line_no_console(&opts->port_num);
if (ret) {
kfree(opts);
return ERR_PTR(ret);
diff --git a/drivers/usb/gadget/function/f_serial.c b/drivers/usb/gadget/function/f_serial.c
index c860f30a0ea2..1406255d0865 100644
--- a/drivers/usb/gadget/function/f_serial.c
+++ b/drivers/usb/gadget/function/f_serial.c
@@ -266,6 +266,24 @@ static struct configfs_item_operations serial_item_ops = {
.release = serial_attr_release,
};
+#ifdef CONFIG_U_SERIAL_CONSOLE
+
+static ssize_t f_serial_console_store(struct config_item *item,
+ const char *page, size_t count)
+{
+ return gserial_set_console(to_f_serial_opts(item)->port_num,
+ page, count);
+}
+
+static ssize_t f_serial_console_show(struct config_item *item, char *page)
+{
+ return gserial_get_console(to_f_serial_opts(item)->port_num, page);
+}
+
+CONFIGFS_ATTR(f_serial_, console);
+
+#endif /* CONFIG_U_SERIAL_CONSOLE */
+
static ssize_t f_serial_port_num_show(struct config_item *item, char *page)
{
return sprintf(page, "%u\n", to_f_serial_opts(item)->port_num);
@@ -274,6 +292,9 @@ static ssize_t f_serial_port_num_show(struct config_item *item, char *page)
CONFIGFS_ATTR_RO(f_serial_, port_num);
static struct configfs_attribute *acm_attrs[] = {
+#ifdef CONFIG_U_SERIAL_CONSOLE
+ &f_serial_attr_console,
+#endif
&f_serial_attr_port_num,
NULL,
};
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c
index 7f01f78b1d23..36504931b2d1 100644
--- a/drivers/usb/gadget/function/f_tcm.c
+++ b/drivers/usb/gadget/function/f_tcm.c
@@ -846,7 +846,7 @@ static void uasp_set_alt(struct f_uas *fu)
fu->flags = USBG_IS_UAS;
- if (gadget->speed == USB_SPEED_SUPER)
+ if (gadget->speed >= USB_SPEED_SUPER)
fu->flags |= USBG_USE_STREAMS;
config_ep_by_speed(gadget, f, fu->ep_in);
@@ -2093,6 +2093,16 @@ static void tcm_delayed_set_alt(struct work_struct *wq)
usb_composite_setup_continue(fu->function.config->cdev);
}
+static int tcm_get_alt(struct usb_function *f, unsigned intf)
+{
+ if (intf == bot_intf_desc.bInterfaceNumber)
+ return USB_G_ALT_INT_BBB;
+ if (intf == uasp_intf_desc.bInterfaceNumber)
+ return USB_G_ALT_INT_UAS;
+
+ return -EOPNOTSUPP;
+}
+
static int tcm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
{
struct f_uas *fu = to_f_uas(f);
@@ -2300,6 +2310,7 @@ static struct usb_function *tcm_alloc(struct usb_function_instance *fi)
fu->function.bind = tcm_bind;
fu->function.unbind = tcm_unbind;
fu->function.set_alt = tcm_set_alt;
+ fu->function.get_alt = tcm_get_alt;
fu->function.setup = tcm_setup;
fu->function.disable = tcm_disable;
fu->function.free_func = tcm_free;
diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 65f634ec7fc2..f986e5c55974 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -82,14 +82,13 @@
#define GS_CONSOLE_BUF_SIZE 8192
/* console info */
-struct gscons_info {
- struct gs_port *port;
- struct task_struct *console_thread;
- struct kfifo con_buf;
- /* protect the buf and busy flag */
- spinlock_t con_lock;
- int req_busy;
- struct usb_request *console_req;
+struct gs_console {
+ struct console console;
+ struct work_struct work;
+ spinlock_t lock;
+ struct usb_request *req;
+ struct kfifo buf;
+ size_t missed;
};
/*
@@ -101,8 +100,10 @@ struct gs_port {
spinlock_t port_lock; /* guard port_* access */
struct gserial *port_usb;
+#ifdef CONFIG_U_SERIAL_CONSOLE
+ struct gs_console *console;
+#endif
- bool openclose; /* open/close in progress */
u8 port_num;
struct list_head read_pool;
@@ -586,82 +587,45 @@ static int gs_open(struct tty_struct *tty, struct file *file)
{
int port_num = tty->index;
struct gs_port *port;
- int status;
-
- do {
- mutex_lock(&ports[port_num].lock);
- port = ports[port_num].port;
- if (!port)
- status = -ENODEV;
- else {
- spin_lock_irq(&port->port_lock);
-
- /* already open? Great. */
- if (port->port.count) {
- status = 0;
- port->port.count++;
-
- /* currently opening/closing? wait ... */
- } else if (port->openclose) {
- status = -EBUSY;
-
- /* ... else we do the work */
- } else {
- status = -EAGAIN;
- port->openclose = true;
- }
- spin_unlock_irq(&port->port_lock);
- }
- mutex_unlock(&ports[port_num].lock);
+ int status = 0;
- switch (status) {
- default:
- /* fully handled */
- return status;
- case -EAGAIN:
- /* must do the work */
- break;
- case -EBUSY:
- /* wait for EAGAIN task to finish */
- msleep(1);
- /* REVISIT could have a waitchannel here, if
- * concurrent open performance is important
- */
- break;
- }
- } while (status != -EAGAIN);
+ mutex_lock(&ports[port_num].lock);
+ port = ports[port_num].port;
+ if (!port) {
+ status = -ENODEV;
+ goto out;
+ }
- /* Do the "real open" */
spin_lock_irq(&port->port_lock);
/* allocate circular buffer on first open */
if (!kfifo_initialized(&port->port_write_buf)) {
spin_unlock_irq(&port->port_lock);
+
+ /*
+ * portmaster's mutex still protects from simultaneous open(),
+ * and close() can't happen, yet.
+ */
+
status = kfifo_alloc(&port->port_write_buf,
WRITE_BUF_SIZE, GFP_KERNEL);
- spin_lock_irq(&port->port_lock);
-
if (status) {
pr_debug("gs_open: ttyGS%d (%p,%p) no buffer\n",
- port->port_num, tty, file);
- port->openclose = false;
- goto exit_unlock_port;
+ port_num, tty, file);
+ goto out;
}
- }
- /* REVISIT if REMOVED (ports[].port NULL), abort the open
- * to let rmmod work faster (but this way isn't wrong).
- */
+ spin_lock_irq(&port->port_lock);
+ }
- /* REVISIT maybe wait for "carrier detect" */
+ /* already open? Great. */
+ if (port->port.count++)
+ goto exit_unlock_port;
tty->driver_data = port;
port->port.tty = tty;
- port->port.count = 1;
- port->openclose = false;
-
/* if connected, start the I/O stream */
if (port->port_usb) {
struct gserial *gser = port->port_usb;
@@ -675,20 +639,21 @@ static int gs_open(struct tty_struct *tty, struct file *file)
pr_debug("gs_open: ttyGS%d (%p,%p)\n", port->port_num, tty, file);
- status = 0;
-
exit_unlock_port:
spin_unlock_irq(&port->port_lock);
+out:
+ mutex_unlock(&ports[port_num].lock);
return status;
}
-static int gs_writes_finished(struct gs_port *p)
+static int gs_close_flush_done(struct gs_port *p)
{
int cond;
- /* return true on disconnect or empty buffer */
+ /* return true on disconnect or empty buffer or if raced with open() */
spin_lock_irq(&p->port_lock);
- cond = (p->port_usb == NULL) || !kfifo_len(&p->port_write_buf);
+ cond = p->port_usb == NULL || !kfifo_len(&p->port_write_buf) ||
+ p->port.count > 1;
spin_unlock_irq(&p->port_lock);
return cond;
@@ -702,6 +667,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
spin_lock_irq(&port->port_lock);
if (port->port.count != 1) {
+raced_with_open:
if (port->port.count == 0)
WARN_ON(1);
else
@@ -711,12 +677,6 @@ static void gs_close(struct tty_struct *tty, struct file *file)
pr_debug("gs_close: ttyGS%d (%p,%p) ...\n", port->port_num, tty, file);
- /* mark port as closing but in use; we can drop port lock
- * and sleep if necessary
- */
- port->openclose = true;
- port->port.count = 0;
-
gser = port->port_usb;
if (gser && gser->disconnect)
gser->disconnect(gser);
@@ -727,9 +687,13 @@ static void gs_close(struct tty_struct *tty, struct file *file)
if (kfifo_len(&port->port_write_buf) > 0 && gser) {
spin_unlock_irq(&port->port_lock);
wait_event_interruptible_timeout(port->drain_wait,
- gs_writes_finished(port),
+ gs_close_flush_done(port),
GS_CLOSE_TIMEOUT * HZ);
spin_lock_irq(&port->port_lock);
+
+ if (port->port.count != 1)
+ goto raced_with_open;
+
gser = port->port_usb;
}
@@ -742,10 +706,9 @@ static void gs_close(struct tty_struct *tty, struct file *file)
else
kfifo_reset(&port->port_write_buf);
+ port->port.count = 0;
port->port.tty = NULL;
- port->openclose = false;
-
pr_debug("gs_close: ttyGS%d (%p,%p) done!\n",
port->port_num, tty, file);
@@ -889,36 +852,9 @@ static struct tty_driver *gs_tty_driver;
#ifdef CONFIG_U_SERIAL_CONSOLE
-static struct gscons_info gscons_info;
-static struct console gserial_cons;
-
-static struct usb_request *gs_request_new(struct usb_ep *ep)
-{
- struct usb_request *req = usb_ep_alloc_request(ep, GFP_ATOMIC);
- if (!req)
- return NULL;
-
- req->buf = kmalloc(ep->maxpacket, GFP_ATOMIC);
- if (!req->buf) {
- usb_ep_free_request(ep, req);
- return NULL;
- }
-
- return req;
-}
-
-static void gs_request_free(struct usb_request *req, struct usb_ep *ep)
+static void gs_console_complete_out(struct usb_ep *ep, struct usb_request *req)
{
- if (!req)
- return;
-
- kfree(req->buf);
- usb_ep_free_request(ep, req);
-}
-
-static void gs_complete_out(struct usb_ep *ep, struct usb_request *req)
-{
- struct gscons_info *info = &gscons_info;
+ struct gs_console *cons = req->context;
switch (req->status) {
default:
@@ -927,12 +863,12 @@ static void gs_complete_out(struct usb_ep *ep, struct usb_request *req)
/* fall through */
case 0:
/* normal completion */
- spin_lock(&info->con_lock);
- info->req_busy = 0;
- spin_unlock(&info->con_lock);
-
- wake_up_process(info->console_thread);
+ spin_lock(&cons->lock);
+ req->length = 0;
+ schedule_work(&cons->work);
+ spin_unlock(&cons->lock);
break;
+ case -ECONNRESET:
case -ESHUTDOWN:
/* disconnect */
pr_vdebug("%s: %s shutdown\n", __func__, ep->name);
@@ -940,190 +876,250 @@ static void gs_complete_out(struct usb_ep *ep, struct usb_request *req)
}
}
-static int gs_console_connect(int port_num)
+static void __gs_console_push(struct gs_console *cons)
{
- struct gscons_info *info = &gscons_info;
- struct gs_port *port;
+ struct usb_request *req = cons->req;
struct usb_ep *ep;
+ size_t size;
- if (port_num != gserial_cons.index) {
- pr_err("%s: port num [%d] is not support console\n",
- __func__, port_num);
- return -ENXIO;
- }
+ if (!req)
+ return; /* disconnected */
- port = ports[port_num].port;
- ep = port->port_usb->in;
- if (!info->console_req) {
- info->console_req = gs_request_new(ep);
- if (!info->console_req)
- return -ENOMEM;
- info->console_req->complete = gs_complete_out;
+ if (req->length)
+ return; /* busy */
+
+ ep = cons->console.data;
+ size = kfifo_out(&cons->buf, req->buf, ep->maxpacket);
+ if (!size)
+ return;
+
+ if (cons->missed && ep->maxpacket >= 64) {
+ char buf[64];
+ size_t len;
+
+ len = sprintf(buf, "\n[missed %zu bytes]\n", cons->missed);
+ kfifo_in(&cons->buf, buf, len);
+ cons->missed = 0;
}
- info->port = port;
- spin_lock(&info->con_lock);
- info->req_busy = 0;
- spin_unlock(&info->con_lock);
- pr_vdebug("port[%d] console connect!\n", port_num);
- return 0;
+ req->length = size;
+ if (usb_ep_queue(ep, req, GFP_ATOMIC))
+ req->length = 0;
}
-static void gs_console_disconnect(struct usb_ep *ep)
+static void gs_console_work(struct work_struct *work)
{
- struct gscons_info *info = &gscons_info;
- struct usb_request *req = info->console_req;
+ struct gs_console *cons = container_of(work, struct gs_console, work);
+
+ spin_lock_irq(&cons->lock);
- gs_request_free(req, ep);
- info->console_req = NULL;
+ __gs_console_push(cons);
+
+ spin_unlock_irq(&cons->lock);
}
-static int gs_console_thread(void *data)
+static void gs_console_write(struct console *co,
+ const char *buf, unsigned count)
{
- struct gscons_info *info = &gscons_info;
- struct gs_port *port;
+ struct gs_console *cons = container_of(co, struct gs_console, console);
+ unsigned long flags;
+ size_t n;
+
+ spin_lock_irqsave(&cons->lock, flags);
+
+ n = kfifo_in(&cons->buf, buf, count);
+ if (n < count)
+ cons->missed += count - n;
+
+ if (cons->req && !cons->req->length)
+ schedule_work(&cons->work);
+
+ spin_unlock_irqrestore(&cons->lock, flags);
+}
+
+static struct tty_driver *gs_console_device(struct console *co, int *index)
+{
+ *index = co->index;
+ return gs_tty_driver;
+}
+
+static int gs_console_connect(struct gs_port *port)
+{
+ struct gs_console *cons = port->console;
struct usb_request *req;
struct usb_ep *ep;
- int xfer, ret, count, size;
-
- do {
- port = info->port;
- set_current_state(TASK_INTERRUPTIBLE);
- if (!port || !port->port_usb
- || !port->port_usb->in || !info->console_req)
- goto sched;
-
- req = info->console_req;
- ep = port->port_usb->in;
-
- spin_lock_irq(&info->con_lock);
- count = kfifo_len(&info->con_buf);
- size = ep->maxpacket;
-
- if (count > 0 && !info->req_busy) {
- set_current_state(TASK_RUNNING);
- if (count < size)
- size = count;
-
- xfer = kfifo_out(&info->con_buf, req->buf, size);
- req->length = xfer;
-
- spin_unlock(&info->con_lock);
- ret = usb_ep_queue(ep, req, GFP_ATOMIC);
- spin_lock(&info->con_lock);
- if (ret < 0)
- info->req_busy = 0;
- else
- info->req_busy = 1;
-
- spin_unlock_irq(&info->con_lock);
- } else {
- spin_unlock_irq(&info->con_lock);
-sched:
- if (kthread_should_stop()) {
- set_current_state(TASK_RUNNING);
- break;
- }
- schedule();
- }
- } while (1);
+
+ if (!cons)
+ return 0;
+
+ ep = port->port_usb->in;
+ req = gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC);
+ if (!req)
+ return -ENOMEM;
+ req->complete = gs_console_complete_out;
+ req->context = cons;
+ req->length = 0;
+
+ spin_lock(&cons->lock);
+ cons->req = req;
+ cons->console.data = ep;
+ spin_unlock(&cons->lock);
+
+ pr_debug("ttyGS%d: console connected!\n", port->port_num);
+
+ schedule_work(&cons->work);
return 0;
}
-static int gs_console_setup(struct console *co, char *options)
+static void gs_console_disconnect(struct gs_port *port)
{
- struct gscons_info *info = &gscons_info;
- int status;
+ struct gs_console *cons = port->console;
+ struct usb_request *req;
+ struct usb_ep *ep;
+
+ if (!cons)
+ return;
- info->port = NULL;
- info->console_req = NULL;
- info->req_busy = 0;
- spin_lock_init(&info->con_lock);
+ spin_lock(&cons->lock);
- status = kfifo_alloc(&info->con_buf, GS_CONSOLE_BUF_SIZE, GFP_KERNEL);
- if (status) {
- pr_err("%s: allocate console buffer failed\n", __func__);
- return status;
- }
+ req = cons->req;
+ ep = cons->console.data;
+ cons->req = NULL;
+
+ spin_unlock(&cons->lock);
- info->console_thread = kthread_create(gs_console_thread,
- co, "gs_console");
- if (IS_ERR(info->console_thread)) {
- pr_err("%s: cannot create console thread\n", __func__);
- kfifo_free(&info->con_buf);
- return PTR_ERR(info->console_thread);
+ if (!req)
+ return;
+
+ usb_ep_dequeue(ep, req);
+ gs_free_req(ep, req);
+}
+
+static int gs_console_init(struct gs_port *port)
+{
+ struct gs_console *cons;
+ int err;
+
+ if (port->console)
+ return 0;
+
+ cons = kzalloc(sizeof(*port->console), GFP_KERNEL);
+ if (!cons)
+ return -ENOMEM;
+
+ strcpy(cons->console.name, "ttyGS");
+ cons->console.write = gs_console_write;
+ cons->console.device = gs_console_device;
+ cons->console.flags = CON_PRINTBUFFER;
+ cons->console.index = port->port_num;
+
+ INIT_WORK(&cons->work, gs_console_work);
+ spin_lock_init(&cons->lock);
+
+ err = kfifo_alloc(&cons->buf, GS_CONSOLE_BUF_SIZE, GFP_KERNEL);
+ if (err) {
+ pr_err("ttyGS%d: allocate console buffer failed\n", port->port_num);
+ kfree(cons);
+ return err;
}
- wake_up_process(info->console_thread);
+
+ port->console = cons;
+ register_console(&cons->console);
+
+ spin_lock_irq(&port->port_lock);
+ if (port->port_usb)
+ gs_console_connect(port);
+ spin_unlock_irq(&port->port_lock);
return 0;
}
-static void gs_console_write(struct console *co,
- const char *buf, unsigned count)
+static void gs_console_exit(struct gs_port *port)
{
- struct gscons_info *info = &gscons_info;
- unsigned long flags;
+ struct gs_console *cons = port->console;
+
+ if (!cons)
+ return;
+
+ unregister_console(&cons->console);
- spin_lock_irqsave(&info->con_lock, flags);
- kfifo_in(&info->con_buf, buf, count);
- spin_unlock_irqrestore(&info->con_lock, flags);
+ spin_lock_irq(&port->port_lock);
+ if (cons->req)
+ gs_console_disconnect(port);
+ spin_unlock_irq(&port->port_lock);
- wake_up_process(info->console_thread);
+ cancel_work_sync(&cons->work);
+ kfifo_free(&cons->buf);
+ kfree(cons);
+ port->console = NULL;
}
-static struct tty_driver *gs_console_device(struct console *co, int *index)
+ssize_t gserial_set_console(unsigned char port_num, const char *page, size_t count)
{
- struct tty_driver **p = (struct tty_driver **)co->data;
+ struct gs_port *port;
+ bool enable;
+ int ret;
- if (!*p)
- return NULL;
+ ret = strtobool(page, &enable);
+ if (ret)
+ return ret;
- *index = co->index;
- return *p;
-}
+ mutex_lock(&ports[port_num].lock);
+ port = ports[port_num].port;
-static struct console gserial_cons = {
- .name = "ttyGS",
- .write = gs_console_write,
- .device = gs_console_device,
- .setup = gs_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
- .data = &gs_tty_driver,
-};
+ if (WARN_ON(port == NULL)) {
+ ret = -ENXIO;
+ goto out;
+ }
-static void gserial_console_init(void)
-{
- register_console(&gserial_cons);
+ if (enable)
+ ret = gs_console_init(port);
+ else
+ gs_console_exit(port);
+out:
+ mutex_unlock(&ports[port_num].lock);
+
+ return ret < 0 ? ret : count;
}
+EXPORT_SYMBOL_GPL(gserial_set_console);
-static void gserial_console_exit(void)
+ssize_t gserial_get_console(unsigned char port_num, char *page)
{
- struct gscons_info *info = &gscons_info;
+ struct gs_port *port;
+ ssize_t ret;
- unregister_console(&gserial_cons);
- if (!IS_ERR_OR_NULL(info->console_thread))
- kthread_stop(info->console_thread);
- kfifo_free(&info->con_buf);
+ mutex_lock(&ports[port_num].lock);
+ port = ports[port_num].port;
+
+ if (WARN_ON(port == NULL))
+ ret = -ENXIO;
+ else
+ ret = sprintf(page, "%u\n", !!port->console);
+
+ mutex_unlock(&ports[port_num].lock);
+
+ return ret;
}
+EXPORT_SYMBOL_GPL(gserial_get_console);
#else
-static int gs_console_connect(int port_num)
+static int gs_console_connect(struct gs_port *port)
{
return 0;
}
-static void gs_console_disconnect(struct usb_ep *ep)
+static void gs_console_disconnect(struct gs_port *port)
{
}
-static void gserial_console_init(void)
+static int gs_console_init(struct gs_port *port)
{
+ return -ENOSYS;
}
-static void gserial_console_exit(void)
+static void gs_console_exit(struct gs_port *port)
{
}
@@ -1172,8 +1168,9 @@ static int gs_closed(struct gs_port *port)
int cond;
spin_lock_irq(&port->port_lock);
- cond = (port->port.count == 0) && !port->openclose;
+ cond = port->port.count == 0;
spin_unlock_irq(&port->port_lock);
+
return cond;
}
@@ -1197,18 +1194,19 @@ void gserial_free_line(unsigned char port_num)
return;
}
port = ports[port_num].port;
+ gs_console_exit(port);
ports[port_num].port = NULL;
mutex_unlock(&ports[port_num].lock);
gserial_free_port(port);
tty_unregister_device(gs_tty_driver, port_num);
- gserial_console_exit();
}
EXPORT_SYMBOL_GPL(gserial_free_line);
-int gserial_alloc_line(unsigned char *line_num)
+int gserial_alloc_line_no_console(unsigned char *line_num)
{
struct usb_cdc_line_coding coding;
+ struct gs_port *port;
struct device *tty_dev;
int ret;
int port_num;
@@ -1231,24 +1229,35 @@ int gserial_alloc_line(unsigned char *line_num)
/* ... and sysfs class devices, so mdev/udev make /dev/ttyGS* */
- tty_dev = tty_port_register_device(&ports[port_num].port->port,
+ port = ports[port_num].port;
+ tty_dev = tty_port_register_device(&port->port,
gs_tty_driver, port_num, NULL);
if (IS_ERR(tty_dev)) {
- struct gs_port *port;
pr_err("%s: failed to register tty for port %d, err %ld\n",
__func__, port_num, PTR_ERR(tty_dev));
ret = PTR_ERR(tty_dev);
- port = ports[port_num].port;
+ mutex_lock(&ports[port_num].lock);
ports[port_num].port = NULL;
+ mutex_unlock(&ports[port_num].lock);
gserial_free_port(port);
goto err;
}
*line_num = port_num;
- gserial_console_init();
err:
return ret;
}
+EXPORT_SYMBOL_GPL(gserial_alloc_line_no_console);
+
+int gserial_alloc_line(unsigned char *line_num)
+{
+ int ret = gserial_alloc_line_no_console(line_num);
+
+ if (!ret && !*line_num)
+ gs_console_init(ports[*line_num].port);
+
+ return ret;
+}
EXPORT_SYMBOL_GPL(gserial_alloc_line);
/**
@@ -1327,7 +1336,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
gser->disconnect(gser);
}
- status = gs_console_connect(port_num);
+ status = gs_console_connect(port);
spin_unlock_irqrestore(&port->port_lock, flags);
return status;
@@ -1359,12 +1368,14 @@ void gserial_disconnect(struct gserial *gser)
/* tell the TTY glue not to do I/O here any more */
spin_lock_irqsave(&port->port_lock, flags);
+ gs_console_disconnect(port);
+
/* REVISIT as above: how best to track this? */
port->port_line_coding = gser->port_line_coding;
port->port_usb = NULL;
gser->ioport = NULL;
- if (port->port.count > 0 || port->openclose) {
+ if (port->port.count > 0) {
wake_up_interruptible(&port->drain_wait);
if (port->port.tty)
tty_hangup(port->port.tty);
@@ -1377,7 +1388,7 @@ void gserial_disconnect(struct gserial *gser)
/* finally, free any unused/unusable I/O buffers */
spin_lock_irqsave(&port->port_lock, flags);
- if (port->port.count == 0 && !port->openclose)
+ if (port->port.count == 0)
kfifo_free(&port->port_write_buf);
gs_free_requests(gser->out, &port->read_pool, NULL);
gs_free_requests(gser->out, &port->read_queue, NULL);
@@ -1386,7 +1397,6 @@ void gserial_disconnect(struct gserial *gser)
port->read_allocated = port->read_started =
port->write_allocated = port->write_started = 0;
- gs_console_disconnect(gser->in);
spin_unlock_irqrestore(&port->port_lock, flags);
}
EXPORT_SYMBOL_GPL(gserial_disconnect);
diff --git a/drivers/usb/gadget/function/u_serial.h b/drivers/usb/gadget/function/u_serial.h
index 9acaac1cbb75..e5b08ab8cf7a 100644
--- a/drivers/usb/gadget/function/u_serial.h
+++ b/drivers/usb/gadget/function/u_serial.h
@@ -54,9 +54,17 @@ struct usb_request *gs_alloc_req(struct usb_ep *ep, unsigned len, gfp_t flags);
void gs_free_req(struct usb_ep *, struct usb_request *req);
/* management of individual TTY ports */
+int gserial_alloc_line_no_console(unsigned char *port_line);
int gserial_alloc_line(unsigned char *port_line);
void gserial_free_line(unsigned char port_line);
+#ifdef CONFIG_U_SERIAL_CONSOLE
+
+ssize_t gserial_set_console(unsigned char port_num, const char *page, size_t count);
+ssize_t gserial_get_console(unsigned char port_num, char *page);
+
+#endif /* CONFIG_U_SERIAL_CONSOLE */
+
/* connect/disconnect is handled by individual functions */
int gserial_connect(struct gserial *, u8 port_num);
void gserial_disconnect(struct gserial *);
diff --git a/drivers/usb/gadget/legacy/Kconfig b/drivers/usb/gadget/legacy/Kconfig
index 69ff7f8c86f5..119a4e47681f 100644
--- a/drivers/usb/gadget/legacy/Kconfig
+++ b/drivers/usb/gadget/legacy/Kconfig
@@ -149,21 +149,21 @@ config USB_ETH_RNDIS
is given in comments found in that info file.
config USB_ETH_EEM
- bool "Ethernet Emulation Model (EEM) support"
- depends on USB_ETH
+ bool "Ethernet Emulation Model (EEM) support"
+ depends on USB_ETH
select USB_LIBCOMPOSITE
select USB_F_EEM
- help
- CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
- and therefore can be supported by more hardware. Technically ECM and
- EEM are designed for different applications. The ECM model extends
- the network interface to the target (e.g. a USB cable modem), and the
- EEM model is for mobile devices to communicate with hosts using
- ethernet over USB. For Linux gadgets, however, the interface with
- the host is the same (a usbX device), so the differences are minimal.
-
- If you say "y" here, the Ethernet gadget driver will use the EEM
- protocol rather than ECM. If unsure, say "n".
+ help
+ CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
+ and therefore can be supported by more hardware. Technically ECM and
+ EEM are designed for different applications. The ECM model extends
+ the network interface to the target (e.g. a USB cable modem), and the
+ EEM model is for mobile devices to communicate with hosts using
+ ethernet over USB. For Linux gadgets, however, the interface with
+ the host is the same (a usbX device), so the differences are minimal.
+
+ If you say "y" here, the Ethernet gadget driver will use the EEM
+ protocol rather than ECM. If unsure, say "n".
config USB_G_NCM
tristate "Network Control Model (NCM) support"
diff --git a/drivers/usb/gadget/legacy/acm_ms.c b/drivers/usb/gadget/legacy/acm_ms.c
index af16672d5118..59be2d8417c9 100644
--- a/drivers/usb/gadget/legacy/acm_ms.c
+++ b/drivers/usb/gadget/legacy/acm_ms.c
@@ -105,7 +105,6 @@ static struct usb_function *f_msg;
*/
static int acm_ms_do_config(struct usb_configuration *c)
{
- struct fsg_opts *opts;
int status;
if (gadget_is_otg(c->cdev->gadget)) {
@@ -113,8 +112,6 @@ static int acm_ms_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
- opts = fsg_opts_from_func_inst(fi_msg);
-
f_acm = usb_get_function(f_acm_inst);
if (IS_ERR(f_acm))
return PTR_ERR(f_acm);
diff --git a/drivers/usb/gadget/legacy/mass_storage.c b/drivers/usb/gadget/legacy/mass_storage.c
index fd5595ac5bf7..f18f77584fc2 100644
--- a/drivers/usb/gadget/legacy/mass_storage.c
+++ b/drivers/usb/gadget/legacy/mass_storage.c
@@ -105,7 +105,6 @@ FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);
static int msg_do_config(struct usb_configuration *c)
{
- struct fsg_opts *opts;
int ret;
if (gadget_is_otg(c->cdev->gadget)) {
@@ -113,8 +112,6 @@ static int msg_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
- opts = fsg_opts_from_func_inst(fi_msg);
-
f_msg = usb_get_function(fi_msg);
if (IS_ERR(f_msg))
return PTR_ERR(f_msg);
diff --git a/drivers/usb/gadget/legacy/serial.c b/drivers/usb/gadget/legacy/serial.c
index de30d7628eef..da44f89f5e73 100644
--- a/drivers/usb/gadget/legacy/serial.c
+++ b/drivers/usb/gadget/legacy/serial.c
@@ -97,6 +97,36 @@ static unsigned n_ports = 1;
module_param(n_ports, uint, 0);
MODULE_PARM_DESC(n_ports, "number of ports to create, default=1");
+static bool enable = true;
+
+static int switch_gserial_enable(bool do_enable);
+
+static int enable_set(const char *s, const struct kernel_param *kp)
+{
+ bool do_enable;
+ int ret;
+
+ if (!s) /* called for no-arg enable == default */
+ return 0;
+
+ ret = strtobool(s, &do_enable);
+ if (ret || enable == do_enable)
+ return ret;
+
+ ret = switch_gserial_enable(do_enable);
+ if (!ret)
+ enable = do_enable;
+
+ return ret;
+}
+
+static const struct kernel_param_ops enable_ops = {
+ .set = enable_set,
+ .get = param_get_bool,
+};
+
+module_param_cb(enable, &enable_ops, &enable, 0644);
+
/*-------------------------------------------------------------------------*/
static struct usb_configuration serial_config_driver = {
@@ -240,6 +270,19 @@ static struct usb_composite_driver gserial_driver = {
.unbind = gs_unbind,
};
+static int switch_gserial_enable(bool do_enable)
+{
+ if (!serial_config_driver.label)
+ /* init() was not called, yet */
+ return 0;
+
+ if (do_enable)
+ return usb_composite_probe(&gserial_driver);
+
+ usb_composite_unregister(&gserial_driver);
+ return 0;
+}
+
static int __init init(void)
{
/* We *could* export two configs; that'd be much cleaner...
@@ -266,12 +309,16 @@ static int __init init(void)
}
strings_dev[STRING_DESCRIPTION_IDX].s = serial_config_driver.label;
+ if (!enable)
+ return 0;
+
return usb_composite_probe(&gserial_driver);
}
module_init(init);
static void __exit cleanup(void)
{
- usb_composite_unregister(&gserial_driver);
+ if (enable)
+ usb_composite_unregister(&gserial_driver);
}
module_exit(cleanup);
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index d354036ff6c8..ae70ce29d5e4 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -120,10 +120,10 @@ config USB_FOTG210_UDC
dynamically linked module called "fotg210_udc".
config USB_GR_UDC
- tristate "Aeroflex Gaisler GRUSBDC USB Peripheral Controller Driver"
- depends on HAS_DMA
- help
- Select this to support Aeroflex Gaisler GRUSBDC cores from the GRLIB
+ tristate "Aeroflex Gaisler GRUSBDC USB Peripheral Controller Driver"
+ depends on HAS_DMA
+ help
+ Select this to support Aeroflex Gaisler GRUSBDC cores from the GRLIB
VHDL IP core library.
config USB_OMAP
@@ -441,6 +441,17 @@ config USB_GADGET_XILINX
dynamically linked module called "udc-xilinx" and force all
gadget drivers to also be dynamically linked.
+config USB_TEGRA_XUDC
+ tristate "NVIDIA Tegra Superspeed USB 3.0 Device Controller"
+ depends on ARCH_TEGRA || COMPILE_TEST
+ depends on PHY_TEGRA_XUSB
+ help
+ Enables NVIDIA Tegra USB 3.0 device mode controller driver.
+
+ Say "y" to link the driver statically, or "m" to build a
+ dynamically linked module called "tegra_xudc" and force all
+ gadget drivers to also be dynamically linked.
+
source "drivers/usb/gadget/udc/aspeed-vhub/Kconfig"
#
diff --git a/drivers/usb/gadget/udc/Makefile b/drivers/usb/gadget/udc/Makefile
index 897f648f3cf1..f6777e654a8e 100644
--- a/drivers/usb/gadget/udc/Makefile
+++ b/drivers/usb/gadget/udc/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_USB_BCM63XX_UDC) += bcm63xx_udc.o
obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o
fsl_usb2_udc-y := fsl_udc_core.o
fsl_usb2_udc-$(CONFIG_ARCH_MXC) += fsl_mxc_udc.o
+obj-$(CONFIG_USB_TEGRA_XUDC) += tegra-xudc.o
obj-$(CONFIG_USB_M66592) += m66592-udc.o
obj-$(CONFIG_USB_R8A66597) += r8a66597-udc.o
obj-$(CONFIG_USB_RENESAS_USB3) += renesas_usb3.o
diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c
index 194ffb1ed462..1b2b548c59a0 100644
--- a/drivers/usb/gadget/udc/at91_udc.c
+++ b/drivers/usb/gadget/udc/at91_udc.c
@@ -1808,7 +1808,6 @@ static int at91udc_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct at91_udc *udc;
int retval;
- struct resource *res;
struct at91_ep *ep;
int i;
@@ -1839,8 +1838,7 @@ static int at91udc_probe(struct platform_device *pdev)
ep->is_pingpong = 1;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- udc->udp_baseaddr = devm_ioremap_resource(dev, res);
+ udc->udp_baseaddr = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(udc->udp_baseaddr))
return PTR_ERR(udc->udp_baseaddr);
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 1d0d8952a74b..8a42768e3213 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -18,6 +18,7 @@
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/ctype.h>
+#include <linux/usb.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/delay.h>
@@ -226,7 +227,7 @@ static void usba_init_debugfs(struct usba_udc *udc)
struct dentry *root;
struct resource *regs_resource;
- root = debugfs_create_dir(udc->gadget.name, NULL);
+ root = debugfs_create_dir(udc->gadget.name, usb_debug_root);
udc->debugfs_root = root;
regs_resource = platform_get_resource(udc->pdev, IORESOURCE_MEM,
diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c
index 97b16463f3ef..54501814dc3f 100644
--- a/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -2248,7 +2248,7 @@ static void bcm63xx_udc_init_debugfs(struct bcm63xx_udc *udc)
if (!IS_ENABLED(CONFIG_USB_GADGET_DEBUG_FS))
return;
- root = debugfs_create_dir(udc->gadget.name, NULL);
+ root = debugfs_create_dir(udc->gadget.name, usb_debug_root);
udc->debugfs_root = root;
debugfs_create_file("usbd", 0400, root, udc, &bcm63xx_usbd_dbg_fops);
@@ -2282,7 +2282,6 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct bcm63xx_usbd_platform_data *pd = dev_get_platdata(dev);
struct bcm63xx_udc *udc;
- struct resource *res;
int rc = -ENOMEM, i, irq;
udc = devm_kzalloc(dev, sizeof(*udc), GFP_KERNEL);
@@ -2298,13 +2297,11 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
return -EINVAL;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- udc->usbd_regs = devm_ioremap_resource(dev, res);
+ udc->usbd_regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(udc->usbd_regs))
return PTR_ERR(udc->usbd_regs);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- udc->iudma_regs = devm_ioremap_resource(dev, res);
+ udc->iudma_regs = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(udc->iudma_regs))
return PTR_ERR(udc->iudma_regs);
diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c
index cc4a16e253ac..02a3a774670b 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_core.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_core.c
@@ -480,7 +480,6 @@ static void bdc_phy_exit(struct bdc *bdc)
static int bdc_probe(struct platform_device *pdev)
{
struct bdc *bdc;
- struct resource *res;
int ret = -ENOMEM;
int irq;
u32 temp;
@@ -508,8 +507,7 @@ static int bdc_probe(struct platform_device *pdev)
bdc->clk = clk;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- bdc->regs = devm_ioremap_resource(dev, res);
+ bdc->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(bdc->regs)) {
dev_err(dev, "ioremap error\n");
return -ENOMEM;
diff --git a/drivers/usb/gadget/udc/bdc/bdc_udc.c b/drivers/usb/gadget/udc/bdc/bdc_udc.c
index 7bfd58c846f7..248426a3e88a 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_udc.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_udc.c
@@ -195,7 +195,7 @@ static void handle_link_state_change(struct bdc *bdc, u32 uspc)
break;
case BDC_LINK_STATE_U0:
if (bdc->devstatus & REMOTE_WAKEUP_ISSUED) {
- bdc->devstatus &= ~REMOTE_WAKEUP_ISSUED;
+ bdc->devstatus &= ~REMOTE_WAKEUP_ISSUED;
if (bdc->gadget.speed == USB_SPEED_SUPER) {
bdc_function_wake_fh(bdc, 0);
bdc->devstatus |= FUNC_WAKE_ISSUED;
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 3d499d93c083..4c9d1e49d5ed 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -1321,7 +1321,7 @@ static int dummy_perform_transfer(struct urb *urb, struct dummy_request *req,
u32 this_sg;
bool next_sg;
- to_host = usb_pipein(urb->pipe);
+ to_host = usb_urb_dir_in(urb);
rbuf = req->req.buf + req->req.actual;
if (!urb->num_sgs) {
@@ -1409,7 +1409,7 @@ top:
/* FIXME update emulated data toggle too */
- to_host = usb_pipein(urb->pipe);
+ to_host = usb_urb_dir_in(urb);
if (unlikely(len == 0))
is_short = 1;
else {
@@ -1830,7 +1830,7 @@ restart:
/* find the gadget's ep for this request (if configured) */
address = usb_pipeendpoint (urb->pipe);
- if (usb_pipein(urb->pipe))
+ if (usb_urb_dir_in(urb))
address |= USB_DIR_IN;
ep = find_endpoint(dum, address);
if (!ep) {
@@ -2385,7 +2385,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb)
s = "?";
break;
} s; }),
- ep, ep ? (usb_pipein(urb->pipe) ? "in" : "out") : "",
+ ep, ep ? (usb_urb_dir_in(urb) ? "in" : "out") : "",
({ char *s; \
switch (usb_pipetype(urb->pipe)) { \
case PIPE_CONTROL: \
@@ -2725,7 +2725,7 @@ static struct platform_driver dummy_hcd_driver = {
};
/*-------------------------------------------------------------------------*/
-#define MAX_NUM_UDC 2
+#define MAX_NUM_UDC 32
static struct platform_device *the_udc_pdev[MAX_NUM_UDC];
static struct platform_device *the_hcd_pdev[MAX_NUM_UDC];
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.h b/drivers/usb/gadget/udc/fsl_qe_udc.h
index 2c537a904ee7..53ca0ff7c2cb 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.h
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.h
@@ -333,8 +333,8 @@ struct qe_udc {
u32 resume_state; /* USB state to resume*/
u32 usb_state; /* USB current state */
u32 usb_next_state; /* USB next state */
- u32 ep0_state; /* Enpoint zero state */
- u32 ep0_dir; /* Enpoint zero direction: can be
+ u32 ep0_state; /* Endpoint zero state */
+ u32 ep0_dir; /* Endpoint zero direction: can be
USB_DIR_IN or USB_DIR_OUT*/
u32 usb_sof_count; /* SOF count */
u32 errors; /* USB ERRORs count */
diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index 9a05863b2876..ec6eda426223 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -1052,10 +1052,11 @@ static int fsl_ep_fifo_status(struct usb_ep *_ep)
u32 bitmask;
struct ep_queue_head *qh;
- ep = container_of(_ep, struct fsl_ep, ep);
- if (!_ep || (!ep->ep.desc && ep_index(ep) != 0))
+ if (!_ep || _ep->desc || !(_ep->desc->bEndpointAddress&0xF))
return -ENODEV;
+ ep = container_of(_ep, struct fsl_ep, ep);
+
udc = (struct fsl_udc *)ep->udc;
if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)
@@ -1208,7 +1209,7 @@ static int fsl_vbus_draw(struct usb_gadget *gadget, unsigned mA)
}
/* Change Data+ pullup status
- * this func is used by usb_gadget_connect/disconnet
+ * this func is used by usb_gadget_connect/disconnect
*/
static int fsl_pullup(struct usb_gadget *gadget, int is_on)
{
@@ -1595,14 +1596,13 @@ static int process_ep_req(struct fsl_udc *udc, int pipe,
struct fsl_req *curr_req)
{
struct ep_td_struct *curr_td;
- int td_complete, actual, remaining_length, j, tmp;
+ int actual, remaining_length, j, tmp;
int status = 0;
int errors = 0;
struct ep_queue_head *curr_qh = &udc->ep_qh[pipe];
int direction = pipe % 2;
curr_td = curr_req->head;
- td_complete = 0;
actual = curr_req->req.length;
for (j = 0; j < curr_req->dtd_count; j++) {
@@ -1647,11 +1647,9 @@ static int process_ep_req(struct fsl_udc *udc, int pipe,
status = -EPROTO;
break;
} else {
- td_complete++;
break;
}
} else {
- td_complete++;
VDBG("dTD transmitted successful");
}
diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index 7a0e9a58c2d8..64d80c65bb96 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -29,6 +29,7 @@
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/device.h>
+#include <linux/usb.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/dma-mapping.h>
@@ -208,7 +209,7 @@ static void gr_dfs_create(struct gr_udc *dev)
{
const char *name = "gr_udc_state";
- dev->dfs_root = debugfs_create_dir(dev_name(dev->dev), NULL);
+ dev->dfs_root = debugfs_create_dir(dev_name(dev->dev), usb_debug_root);
debugfs_create_file(name, 0444, dev->dfs_root, dev, &gr_dfs_fops);
}
@@ -2118,7 +2119,6 @@ static int gr_request_irq(struct gr_udc *dev, int irq)
static int gr_probe(struct platform_device *pdev)
{
struct gr_udc *dev;
- struct resource *res;
struct gr_regs __iomem *regs;
int retval;
u32 status;
@@ -2128,8 +2128,7 @@ static int gr_probe(struct platform_device *pdev)
return -ENOMEM;
dev->dev = &pdev->dev;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- regs = devm_ioremap_resource(dev->dev, res);
+ regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);
diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index bf6c81e2f8cc..d14b2bb3f67c 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -3000,7 +3000,6 @@ static int lpc32xx_udc_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct lpc32xx_udc *udc;
int retval, i;
- struct resource *res;
dma_addr_t dma_handle;
struct device_node *isp1301_node;
@@ -3048,9 +3047,6 @@ static int lpc32xx_udc_probe(struct platform_device *pdev)
* IORESOURCE_IRQ, USB device interrupt number
* IORESOURCE_IRQ, USB transceiver interrupt number
*/
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENXIO;
spin_lock_init(&udc->lock);
@@ -3061,7 +3057,7 @@ static int lpc32xx_udc_probe(struct platform_device *pdev)
return udc->udp_irq[i];
}
- udc->udp_baseaddr = devm_ioremap_resource(dev, res);
+ udc->udp_baseaddr = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(udc->udp_baseaddr)) {
dev_err(udc->dev, "IO map failure\n");
return PTR_ERR(udc->udp_baseaddr);
diff --git a/drivers/usb/gadget/udc/mv_u3d.h b/drivers/usb/gadget/udc/mv_u3d.h
index 982625b7197a..66b84f792f64 100644
--- a/drivers/usb/gadget/udc/mv_u3d.h
+++ b/drivers/usb/gadget/udc/mv_u3d.h
@@ -138,7 +138,7 @@ struct mv_u3d_op_regs {
u32 doorbell; /* doorbell register */
};
-/* control enpoint enable registers */
+/* control endpoint enable registers */
struct epxcr {
u32 epxoutcr0; /* ep out control 0 register */
u32 epxoutcr1; /* ep out control 1 register */
diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c
index 265dab2bbfac..3344fb8c4181 100644
--- a/drivers/usb/gadget/udc/pch_udc.c
+++ b/drivers/usb/gadget/udc/pch_udc.c
@@ -1519,7 +1519,6 @@ static void pch_udc_free_dma_chain(struct pch_udc_dev *dev,
td = phys_to_virt(addr);
addr2 = (dma_addr_t)td->next;
dma_pool_free(dev->data_requests, td, addr);
- td->next = 0x00;
addr = addr2;
}
req->chain_len = 1;
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index d4be53559f2e..cfafdd92c2a8 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -2321,7 +2321,6 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
struct pxa25x_udc *dev = &memory;
int retval, irq;
u32 chiprev;
- struct resource *res;
pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
@@ -2367,8 +2366,7 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
if (irq < 0)
return -ENODEV;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- dev->regs = devm_ioremap_resource(&pdev->dev, res);
+ dev->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(dev->regs))
return PTR_ERR(dev->regs);
diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c
index 014233252299..78902d13fc27 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.c
+++ b/drivers/usb/gadget/udc/pxa27x_udc.c
@@ -207,7 +207,7 @@ static void pxa_init_debugfs(struct pxa_udc *udc)
{
struct dentry *root;
- root = debugfs_create_dir(udc->gadget.name, NULL);
+ root = debugfs_create_dir(udc->gadget.name, usb_debug_root);
udc->debugfs_root = root;
debugfs_create_file("udcstate", 0400, root, udc, &state_dbg_fops);
@@ -2356,7 +2356,6 @@ MODULE_DEVICE_TABLE(of, udc_pxa_dt_ids);
*/
static int pxa_udc_probe(struct platform_device *pdev)
{
- struct resource *regs;
struct pxa_udc *udc = &memory;
int retval = 0, gpio;
struct pxa2xx_udc_mach_info *mach = dev_get_platdata(&pdev->dev);
@@ -2378,8 +2377,7 @@ static int pxa_udc_probe(struct platform_device *pdev)
udc->gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_ASIS);
}
- regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- udc->regs = devm_ioremap_resource(&pdev->dev, regs);
+ udc->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(udc->regs))
return PTR_ERR(udc->regs);
udc->irq = platform_get_irq(pdev, 0);
diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index 11e25a3f4f1f..582a16165ea9 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1838,7 +1838,7 @@ static int r8a66597_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
char clk_name[8];
- struct resource *res, *ires;
+ struct resource *ires;
int irq;
void __iomem *reg = NULL;
struct r8a66597 *r8a66597 = NULL;
@@ -1846,8 +1846,7 @@ static int r8a66597_probe(struct platform_device *pdev)
int i;
unsigned long irq_trigger;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- reg = devm_ioremap_resource(&pdev->dev, res);
+ reg = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(reg))
return PTR_ERR(reg);
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 33703140233a..c5c3c14df67a 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -775,6 +775,18 @@ static void usb3_irq_epc_int_1_resume(struct renesas_usb3 *usb3)
usb3_transition_to_default_state(usb3, false);
}
+static void usb3_irq_epc_int_1_suspend(struct renesas_usb3 *usb3)
+{
+ usb3_disable_irq_1(usb3, USB_INT_1_B2_SPND);
+
+ if (usb3->gadget.speed != USB_SPEED_UNKNOWN &&
+ usb3->gadget.state != USB_STATE_NOTATTACHED) {
+ if (usb3->driver && usb3->driver->suspend)
+ usb3->driver->suspend(&usb3->gadget);
+ usb_gadget_set_state(&usb3->gadget, USB_STATE_SUSPENDED);
+ }
+}
+
static void usb3_irq_epc_int_1_disable(struct renesas_usb3 *usb3)
{
usb3_stop_usb3_connection(usb3);
@@ -860,6 +872,9 @@ static void usb3_irq_epc_int_1(struct renesas_usb3 *usb3, u32 int_sta_1)
if (int_sta_1 & USB_INT_1_B2_RSUM)
usb3_irq_epc_int_1_resume(usb3);
+ if (int_sta_1 & USB_INT_1_B2_SPND)
+ usb3_irq_epc_int_1_suspend(usb3);
+
if (int_sta_1 & USB_INT_1_SPEED)
usb3_irq_epc_int_1_speed(usb3);
@@ -2536,7 +2551,7 @@ static const struct file_operations renesas_usb3_b_device_fops = {
static void renesas_usb3_debugfs_init(struct renesas_usb3 *usb3,
struct device *dev)
{
- usb3->dentry = debugfs_create_dir(dev_name(dev), NULL);
+ usb3->dentry = debugfs_create_dir(dev_name(dev), usb_debug_root);
debugfs_create_file("b_device", 0644, usb3->dentry, usb3,
&renesas_usb3_b_device_fops);
@@ -2733,7 +2748,6 @@ static struct usb_role_switch_desc renesas_usb3_role_switch_desc = {
static int renesas_usb3_probe(struct platform_device *pdev)
{
struct renesas_usb3 *usb3;
- struct resource *res;
int irq, ret;
const struct renesas_usb3_priv *priv;
const struct soc_device_attribute *attr;
@@ -2752,8 +2766,7 @@ static int renesas_usb3_probe(struct platform_device *pdev)
if (!usb3)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- usb3->reg = devm_ioremap_resource(&pdev->dev, res);
+ usb3->reg = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(usb3->reg))
return PTR_ERR(usb3->reg);
diff --git a/drivers/usb/gadget/udc/s3c-hsudc.c b/drivers/usb/gadget/udc/s3c-hsudc.c
index 858993c73442..21252fbc0319 100644
--- a/drivers/usb/gadget/udc/s3c-hsudc.c
+++ b/drivers/usb/gadget/udc/s3c-hsudc.c
@@ -1263,7 +1263,6 @@ static const struct usb_gadget_ops s3c_hsudc_gadget_ops = {
static int s3c_hsudc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct resource *res;
struct s3c_hsudc *hsudc;
struct s3c24xx_hsudc_platdata *pd = dev_get_platdata(&pdev->dev);
int ret, i;
@@ -1290,9 +1289,7 @@ static int s3c_hsudc_probe(struct platform_device *pdev)
goto err_supplies;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
- hsudc->regs = devm_ioremap_resource(&pdev->dev, res);
+ hsudc->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(hsudc->regs)) {
ret = PTR_ERR(hsudc->regs);
goto err_res;
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index f82208fbc249..0507a2ca0f55 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -1978,7 +1978,8 @@ static int __init udc_init(void)
dprintk(DEBUG_NORMAL, "%s\n", gadget_name);
- s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name, NULL);
+ s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name,
+ usb_debug_root);
retval = platform_driver_register(&udc_driver_24x0);
if (retval)
diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c
new file mode 100644
index 000000000000..634c2c19a176
--- /dev/null
+++ b/drivers/usb/gadget/udc/tegra-xudc.c
@@ -0,0 +1,3810 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * NVIDIA Tegra XUSB device mode controller
+ *
+ * Copyright (c) 2013-2019, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2015, Google Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/interrupt.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/phy/phy.h>
+#include <linux/phy/tegra/xusb.h>
+#include <linux/pm_domain.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/role.h>
+#include <linux/workqueue.h>
+
+/* XUSB_DEV registers */
+#define SPARAM 0x000
+#define SPARAM_ERSTMAX_MASK GENMASK(20, 16)
+#define SPARAM_ERSTMAX(x) (((x) << 16) & SPARAM_ERSTMAX_MASK)
+#define DB 0x004
+#define DB_TARGET_MASK GENMASK(15, 8)
+#define DB_TARGET(x) (((x) << 8) & DB_TARGET_MASK)
+#define DB_STREAMID_MASK GENMASK(31, 16)
+#define DB_STREAMID(x) (((x) << 16) & DB_STREAMID_MASK)
+#define ERSTSZ 0x008
+#define ERSTSZ_ERSTXSZ_SHIFT(x) ((x) * 16)
+#define ERSTSZ_ERSTXSZ_MASK GENMASK(15, 0)
+#define ERSTXBALO(x) (0x010 + 8 * (x))
+#define ERSTXBAHI(x) (0x014 + 8 * (x))
+#define ERDPLO 0x020
+#define ERDPLO_EHB BIT(3)
+#define ERDPHI 0x024
+#define EREPLO 0x028
+#define EREPLO_ECS BIT(0)
+#define EREPLO_SEGI BIT(1)
+#define EREPHI 0x02c
+#define CTRL 0x030
+#define CTRL_RUN BIT(0)
+#define CTRL_LSE BIT(1)
+#define CTRL_IE BIT(4)
+#define CTRL_SMI_EVT BIT(5)
+#define CTRL_SMI_DSE BIT(6)
+#define CTRL_EWE BIT(7)
+#define CTRL_DEVADDR_MASK GENMASK(30, 24)
+#define CTRL_DEVADDR(x) (((x) << 24) & CTRL_DEVADDR_MASK)
+#define CTRL_ENABLE BIT(31)
+#define ST 0x034
+#define ST_RC BIT(0)
+#define ST_IP BIT(4)
+#define RT_IMOD 0x038
+#define RT_IMOD_IMODI_MASK GENMASK(15, 0)
+#define RT_IMOD_IMODI(x) ((x) & RT_IMOD_IMODI_MASK)
+#define RT_IMOD_IMODC_MASK GENMASK(31, 16)
+#define RT_IMOD_IMODC(x) (((x) << 16) & RT_IMOD_IMODC_MASK)
+#define PORTSC 0x03c
+#define PORTSC_CCS BIT(0)
+#define PORTSC_PED BIT(1)
+#define PORTSC_PR BIT(4)
+#define PORTSC_PLS_SHIFT 5
+#define PORTSC_PLS_MASK GENMASK(8, 5)
+#define PORTSC_PLS_U0 0x0
+#define PORTSC_PLS_U2 0x2
+#define PORTSC_PLS_U3 0x3
+#define PORTSC_PLS_DISABLED 0x4
+#define PORTSC_PLS_RXDETECT 0x5
+#define PORTSC_PLS_INACTIVE 0x6
+#define PORTSC_PLS_RESUME 0xf
+#define PORTSC_PLS(x) (((x) << PORTSC_PLS_SHIFT) & PORTSC_PLS_MASK)
+#define PORTSC_PS_SHIFT 10
+#define PORTSC_PS_MASK GENMASK(13, 10)
+#define PORTSC_PS_UNDEFINED 0x0
+#define PORTSC_PS_FS 0x1
+#define PORTSC_PS_LS 0x2
+#define PORTSC_PS_HS 0x3
+#define PORTSC_PS_SS 0x4
+#define PORTSC_LWS BIT(16)
+#define PORTSC_CSC BIT(17)
+#define PORTSC_WRC BIT(19)
+#define PORTSC_PRC BIT(21)
+#define PORTSC_PLC BIT(22)
+#define PORTSC_CEC BIT(23)
+#define PORTSC_WPR BIT(30)
+#define PORTSC_CHANGE_MASK (PORTSC_CSC | PORTSC_WRC | PORTSC_PRC | \
+ PORTSC_PLC | PORTSC_CEC)
+#define ECPLO 0x040
+#define ECPHI 0x044
+#define MFINDEX 0x048
+#define MFINDEX_FRAME_SHIFT 3
+#define MFINDEX_FRAME_MASK GENMASK(13, 3)
+#define PORTPM 0x04c
+#define PORTPM_L1S_MASK GENMASK(1, 0)
+#define PORTPM_L1S_DROP 0x0
+#define PORTPM_L1S_ACCEPT 0x1
+#define PORTPM_L1S_NYET 0x2
+#define PORTPM_L1S_STALL 0x3
+#define PORTPM_L1S(x) ((x) & PORTPM_L1S_MASK)
+#define PORTPM_RWE BIT(3)
+#define PORTPM_U2TIMEOUT_MASK GENMASK(15, 8)
+#define PORTPM_U1TIMEOUT_MASK GENMASK(23, 16)
+#define PORTPM_FLA BIT(24)
+#define PORTPM_VBA BIT(25)
+#define PORTPM_WOC BIT(26)
+#define PORTPM_WOD BIT(27)
+#define PORTPM_U1E BIT(28)
+#define PORTPM_U2E BIT(29)
+#define PORTPM_FRWE BIT(30)
+#define PORTPM_PNG_CYA BIT(31)
+#define EP_HALT 0x050
+#define EP_PAUSE 0x054
+#define EP_RELOAD 0x058
+#define EP_STCHG 0x05c
+#define DEVNOTIF_LO 0x064
+#define DEVNOTIF_LO_TRIG BIT(0)
+#define DEVNOTIF_LO_TYPE_MASK GENMASK(7, 4)
+#define DEVNOTIF_LO_TYPE(x) (((x) << 4) & DEVNOTIF_LO_TYPE_MASK)
+#define DEVNOTIF_LO_TYPE_FUNCTION_WAKE 0x1
+#define DEVNOTIF_HI 0x068
+#define PORTHALT 0x06c
+#define PORTHALT_HALT_LTSSM BIT(0)
+#define PORTHALT_HALT_REJECT BIT(1)
+#define PORTHALT_STCHG_REQ BIT(20)
+#define PORTHALT_STCHG_INTR_EN BIT(24)
+#define PORT_TM 0x070
+#define EP_THREAD_ACTIVE 0x074
+#define EP_STOPPED 0x078
+#define HSFSPI_COUNT0 0x100
+#define HSFSPI_COUNT13 0x134
+#define HSFSPI_COUNT13_U2_RESUME_K_DURATION_MASK GENMASK(29, 0)
+#define HSFSPI_COUNT13_U2_RESUME_K_DURATION(x) ((x) & \
+ HSFSPI_COUNT13_U2_RESUME_K_DURATION_MASK)
+#define BLCG 0x840
+#define SSPX_CORE_CNT0 0x610
+#define SSPX_CORE_CNT0_PING_TBURST_MASK GENMASK(7, 0)
+#define SSPX_CORE_CNT0_PING_TBURST(x) ((x) & SSPX_CORE_CNT0_PING_TBURST_MASK)
+#define SSPX_CORE_CNT30 0x688
+#define SSPX_CORE_CNT30_LMPITP_TIMER_MASK GENMASK(19, 0)
+#define SSPX_CORE_CNT30_LMPITP_TIMER(x) ((x) & \
+ SSPX_CORE_CNT30_LMPITP_TIMER_MASK)
+#define SSPX_CORE_CNT32 0x690
+#define SSPX_CORE_CNT32_POLL_TBURST_MAX_MASK GENMASK(7, 0)
+#define SSPX_CORE_CNT32_POLL_TBURST_MAX(x) ((x) & \
+ SSPX_CORE_CNT32_POLL_TBURST_MAX_MASK)
+#define SSPX_CORE_PADCTL4 0x750
+#define SSPX_CORE_PADCTL4_RXDAT_VLD_TIMEOUT_U3_MASK GENMASK(19, 0)
+#define SSPX_CORE_PADCTL4_RXDAT_VLD_TIMEOUT_U3(x) ((x) & \
+ SSPX_CORE_PADCTL4_RXDAT_VLD_TIMEOUT_U3_MASK)
+#define BLCG_DFPCI BIT(0)
+#define BLCG_UFPCI BIT(1)
+#define BLCG_FE BIT(2)
+#define BLCG_COREPLL_PWRDN BIT(8)
+#define BLCG_IOPLL_0_PWRDN BIT(9)
+#define BLCG_IOPLL_1_PWRDN BIT(10)
+#define BLCG_IOPLL_2_PWRDN BIT(11)
+#define BLCG_ALL 0x1ff
+#define CFG_DEV_SSPI_XFER 0x858
+#define CFG_DEV_SSPI_XFER_ACKTIMEOUT_MASK GENMASK(31, 0)
+#define CFG_DEV_SSPI_XFER_ACKTIMEOUT(x) ((x) & \
+ CFG_DEV_SSPI_XFER_ACKTIMEOUT_MASK)
+#define CFG_DEV_FE 0x85c
+#define CFG_DEV_FE_PORTREGSEL_MASK GENMASK(1, 0)
+#define CFG_DEV_FE_PORTREGSEL_SS_PI 1
+#define CFG_DEV_FE_PORTREGSEL_HSFS_PI 2
+#define CFG_DEV_FE_PORTREGSEL(x) ((x) & CFG_DEV_FE_PORTREGSEL_MASK)
+#define CFG_DEV_FE_INFINITE_SS_RETRY BIT(29)
+
+/* FPCI registers */
+#define XUSB_DEV_CFG_1 0x004
+#define XUSB_DEV_CFG_1_IO_SPACE_EN BIT(0)
+#define XUSB_DEV_CFG_1_MEMORY_SPACE_EN BIT(1)
+#define XUSB_DEV_CFG_1_BUS_MASTER_EN BIT(2)
+#define XUSB_DEV_CFG_4 0x010
+#define XUSB_DEV_CFG_4_BASE_ADDR_MASK GENMASK(31, 15)
+#define XUSB_DEV_CFG_5 0x014
+
+/* IPFS registers */
+#define XUSB_DEV_CONFIGURATION_0 0x180
+#define XUSB_DEV_CONFIGURATION_0_EN_FPCI BIT(0)
+#define XUSB_DEV_INTR_MASK_0 0x188
+#define XUSB_DEV_INTR_MASK_0_IP_INT_MASK BIT(16)
+
+struct tegra_xudc_ep_context {
+ __le32 info0;
+ __le32 info1;
+ __le32 deq_lo;
+ __le32 deq_hi;
+ __le32 tx_info;
+ __le32 rsvd[11];
+};
+
+#define EP_STATE_DISABLED 0
+#define EP_STATE_RUNNING 1
+#define EP_STATE_HALTED 2
+#define EP_STATE_STOPPED 3
+#define EP_STATE_ERROR 4
+
+#define EP_TYPE_INVALID 0
+#define EP_TYPE_ISOCH_OUT 1
+#define EP_TYPE_BULK_OUT 2
+#define EP_TYPE_INTERRUPT_OUT 3
+#define EP_TYPE_CONTROL 4
+#define EP_TYPE_ISCOH_IN 5
+#define EP_TYPE_BULK_IN 6
+#define EP_TYPE_INTERRUPT_IN 7
+
+#define BUILD_EP_CONTEXT_RW(name, member, shift, mask) \
+static inline u32 ep_ctx_read_##name(struct tegra_xudc_ep_context *ctx) \
+{ \
+ return (le32_to_cpu(ctx->member) >> (shift)) & (mask); \
+} \
+static inline void \
+ep_ctx_write_##name(struct tegra_xudc_ep_context *ctx, u32 val) \
+{ \
+ u32 tmp; \
+ \
+ tmp = le32_to_cpu(ctx->member) & ~((mask) << (shift)); \
+ tmp |= (val & (mask)) << (shift); \
+ ctx->member = cpu_to_le32(tmp); \
+}
+
+BUILD_EP_CONTEXT_RW(state, info0, 0, 0x7)
+BUILD_EP_CONTEXT_RW(mult, info0, 8, 0x3)
+BUILD_EP_CONTEXT_RW(max_pstreams, info0, 10, 0x1f)
+BUILD_EP_CONTEXT_RW(lsa, info0, 15, 0x1)
+BUILD_EP_CONTEXT_RW(interval, info0, 16, 0xff)
+BUILD_EP_CONTEXT_RW(cerr, info1, 1, 0x3)
+BUILD_EP_CONTEXT_RW(type, info1, 3, 0x7)
+BUILD_EP_CONTEXT_RW(hid, info1, 7, 0x1)
+BUILD_EP_CONTEXT_RW(max_burst_size, info1, 8, 0xff)
+BUILD_EP_CONTEXT_RW(max_packet_size, info1, 16, 0xffff)
+BUILD_EP_CONTEXT_RW(dcs, deq_lo, 0, 0x1)
+BUILD_EP_CONTEXT_RW(deq_lo, deq_lo, 4, 0xfffffff)
+BUILD_EP_CONTEXT_RW(deq_hi, deq_hi, 0, 0xffffffff)
+BUILD_EP_CONTEXT_RW(avg_trb_len, tx_info, 0, 0xffff)
+BUILD_EP_CONTEXT_RW(max_esit_payload, tx_info, 16, 0xffff)
+BUILD_EP_CONTEXT_RW(edtla, rsvd[0], 0, 0xffffff)
+BUILD_EP_CONTEXT_RW(seq_num, rsvd[0], 24, 0xff)
+BUILD_EP_CONTEXT_RW(partial_td, rsvd[0], 25, 0x1)
+BUILD_EP_CONTEXT_RW(cerrcnt, rsvd[1], 18, 0x3)
+BUILD_EP_CONTEXT_RW(data_offset, rsvd[2], 0, 0x1ffff)
+BUILD_EP_CONTEXT_RW(numtrbs, rsvd[2], 22, 0x1f)
+BUILD_EP_CONTEXT_RW(devaddr, rsvd[6], 0, 0x7f)
+
+static inline u64 ep_ctx_read_deq_ptr(struct tegra_xudc_ep_context *ctx)
+{
+ return ((u64)ep_ctx_read_deq_hi(ctx) << 32) |
+ (ep_ctx_read_deq_lo(ctx) << 4);
+}
+
+static inline void
+ep_ctx_write_deq_ptr(struct tegra_xudc_ep_context *ctx, u64 addr)
+{
+ ep_ctx_write_deq_lo(ctx, lower_32_bits(addr) >> 4);
+ ep_ctx_write_deq_hi(ctx, upper_32_bits(addr));
+}
+
+struct tegra_xudc_trb {
+ __le32 data_lo;
+ __le32 data_hi;
+ __le32 status;
+ __le32 control;
+};
+
+#define TRB_TYPE_RSVD 0
+#define TRB_TYPE_NORMAL 1
+#define TRB_TYPE_SETUP_STAGE 2
+#define TRB_TYPE_DATA_STAGE 3
+#define TRB_TYPE_STATUS_STAGE 4
+#define TRB_TYPE_ISOCH 5
+#define TRB_TYPE_LINK 6
+#define TRB_TYPE_TRANSFER_EVENT 32
+#define TRB_TYPE_PORT_STATUS_CHANGE_EVENT 34
+#define TRB_TYPE_STREAM 48
+#define TRB_TYPE_SETUP_PACKET_EVENT 63
+
+#define TRB_CMPL_CODE_INVALID 0
+#define TRB_CMPL_CODE_SUCCESS 1
+#define TRB_CMPL_CODE_DATA_BUFFER_ERR 2
+#define TRB_CMPL_CODE_BABBLE_DETECTED_ERR 3
+#define TRB_CMPL_CODE_USB_TRANS_ERR 4
+#define TRB_CMPL_CODE_TRB_ERR 5
+#define TRB_CMPL_CODE_STALL 6
+#define TRB_CMPL_CODE_INVALID_STREAM_TYPE_ERR 10
+#define TRB_CMPL_CODE_SHORT_PACKET 13
+#define TRB_CMPL_CODE_RING_UNDERRUN 14
+#define TRB_CMPL_CODE_RING_OVERRUN 15
+#define TRB_CMPL_CODE_EVENT_RING_FULL_ERR 21
+#define TRB_CMPL_CODE_STOPPED 26
+#define TRB_CMPL_CODE_ISOCH_BUFFER_OVERRUN 31
+#define TRB_CMPL_CODE_STREAM_NUMP_ERROR 219
+#define TRB_CMPL_CODE_PRIME_PIPE_RECEIVED 220
+#define TRB_CMPL_CODE_HOST_REJECTED 221
+#define TRB_CMPL_CODE_CTRL_DIR_ERR 222
+#define TRB_CMPL_CODE_CTRL_SEQNUM_ERR 223
+
+#define BUILD_TRB_RW(name, member, shift, mask) \
+static inline u32 trb_read_##name(struct tegra_xudc_trb *trb) \
+{ \
+ return (le32_to_cpu(trb->member) >> (shift)) & (mask); \
+} \
+static inline void \
+trb_write_##name(struct tegra_xudc_trb *trb, u32 val) \
+{ \
+ u32 tmp; \
+ \
+ tmp = le32_to_cpu(trb->member) & ~((mask) << (shift)); \
+ tmp |= (val & (mask)) << (shift); \
+ trb->member = cpu_to_le32(tmp); \
+}
+
+BUILD_TRB_RW(data_lo, data_lo, 0, 0xffffffff)
+BUILD_TRB_RW(data_hi, data_hi, 0, 0xffffffff)
+BUILD_TRB_RW(seq_num, status, 0, 0xffff)
+BUILD_TRB_RW(transfer_len, status, 0, 0xffffff)
+BUILD_TRB_RW(td_size, status, 17, 0x1f)
+BUILD_TRB_RW(cmpl_code, status, 24, 0xff)
+BUILD_TRB_RW(cycle, control, 0, 0x1)
+BUILD_TRB_RW(toggle_cycle, control, 1, 0x1)
+BUILD_TRB_RW(isp, control, 2, 0x1)
+BUILD_TRB_RW(chain, control, 4, 0x1)
+BUILD_TRB_RW(ioc, control, 5, 0x1)
+BUILD_TRB_RW(type, control, 10, 0x3f)
+BUILD_TRB_RW(stream_id, control, 16, 0xffff)
+BUILD_TRB_RW(endpoint_id, control, 16, 0x1f)
+BUILD_TRB_RW(tlbpc, control, 16, 0xf)
+BUILD_TRB_RW(data_stage_dir, control, 16, 0x1)
+BUILD_TRB_RW(frame_id, control, 20, 0x7ff)
+BUILD_TRB_RW(sia, control, 31, 0x1)
+
+static inline u64 trb_read_data_ptr(struct tegra_xudc_trb *trb)
+{
+ return ((u64)trb_read_data_hi(trb) << 32) |
+ trb_read_data_lo(trb);
+}
+
+static inline void trb_write_data_ptr(struct tegra_xudc_trb *trb, u64 addr)
+{
+ trb_write_data_lo(trb, lower_32_bits(addr));
+ trb_write_data_hi(trb, upper_32_bits(addr));
+}
+
+struct tegra_xudc_request {
+ struct usb_request usb_req;
+
+ size_t buf_queued;
+ unsigned int trbs_queued;
+ unsigned int trbs_needed;
+ bool need_zlp;
+
+ struct tegra_xudc_trb *first_trb;
+ struct tegra_xudc_trb *last_trb;
+
+ struct list_head list;
+};
+
+struct tegra_xudc_ep {
+ struct tegra_xudc *xudc;
+ struct usb_ep usb_ep;
+ unsigned int index;
+ char name[8];
+
+ struct tegra_xudc_ep_context *context;
+
+#define XUDC_TRANSFER_RING_SIZE 64
+ struct tegra_xudc_trb *transfer_ring;
+ dma_addr_t transfer_ring_phys;
+
+ unsigned int enq_ptr;
+ unsigned int deq_ptr;
+ bool pcs;
+ bool ring_full;
+ bool stream_rejected;
+
+ struct list_head queue;
+ const struct usb_endpoint_descriptor *desc;
+ const struct usb_ss_ep_comp_descriptor *comp_desc;
+};
+
+struct tegra_xudc_sel_timing {
+ __u8 u1sel;
+ __u8 u1pel;
+ __le16 u2sel;
+ __le16 u2pel;
+};
+
+enum tegra_xudc_setup_state {
+ WAIT_FOR_SETUP,
+ DATA_STAGE_XFER,
+ DATA_STAGE_RECV,
+ STATUS_STAGE_XFER,
+ STATUS_STAGE_RECV,
+};
+
+struct tegra_xudc_setup_packet {
+ struct usb_ctrlrequest ctrl_req;
+ unsigned int seq_num;
+};
+
+struct tegra_xudc_save_regs {
+ u32 ctrl;
+ u32 portpm;
+};
+
+struct tegra_xudc {
+ struct device *dev;
+ const struct tegra_xudc_soc *soc;
+ struct tegra_xusb_padctl *padctl;
+
+ spinlock_t lock;
+
+ struct usb_gadget gadget;
+ struct usb_gadget_driver *driver;
+
+#define XUDC_NR_EVENT_RINGS 2
+#define XUDC_EVENT_RING_SIZE 4096
+ struct tegra_xudc_trb *event_ring[XUDC_NR_EVENT_RINGS];
+ dma_addr_t event_ring_phys[XUDC_NR_EVENT_RINGS];
+ unsigned int event_ring_index;
+ unsigned int event_ring_deq_ptr;
+ bool ccs;
+
+#define XUDC_NR_EPS 32
+ struct tegra_xudc_ep ep[XUDC_NR_EPS];
+ struct tegra_xudc_ep_context *ep_context;
+ dma_addr_t ep_context_phys;
+
+ struct device *genpd_dev_device;
+ struct device *genpd_dev_ss;
+ struct device_link *genpd_dl_device;
+ struct device_link *genpd_dl_ss;
+
+ struct dma_pool *transfer_ring_pool;
+
+ bool queued_setup_packet;
+ struct tegra_xudc_setup_packet setup_packet;
+ enum tegra_xudc_setup_state setup_state;
+ u16 setup_seq_num;
+
+ u16 dev_addr;
+ u16 isoch_delay;
+ struct tegra_xudc_sel_timing sel_timing;
+ u8 test_mode_pattern;
+ u16 status_buf;
+ struct tegra_xudc_request *ep0_req;
+
+ bool pullup;
+
+ unsigned int nr_enabled_eps;
+ unsigned int nr_isoch_eps;
+
+ unsigned int device_state;
+ unsigned int resume_state;
+
+ int irq;
+
+ void __iomem *base;
+ resource_size_t phys_base;
+ void __iomem *ipfs;
+ void __iomem *fpci;
+
+ struct regulator_bulk_data *supplies;
+
+ struct clk_bulk_data *clks;
+
+ enum usb_role device_mode;
+ struct usb_role_switch *usb_role_sw;
+ struct work_struct usb_role_sw_work;
+
+ struct phy *usb3_phy;
+ struct phy *utmi_phy;
+
+ struct tegra_xudc_save_regs saved_regs;
+ bool suspended;
+ bool powergated;
+
+ struct completion disconnect_complete;
+
+ bool selfpowered;
+
+#define TOGGLE_VBUS_WAIT_MS 100
+ struct delayed_work plc_reset_work;
+ bool wait_csc;
+
+ struct delayed_work port_reset_war_work;
+ bool wait_for_sec_prc;
+};
+
+#define XUDC_TRB_MAX_BUFFER_SIZE 65536
+#define XUDC_MAX_ISOCH_EPS 4
+#define XUDC_INTERRUPT_MODERATION_US 0
+
+static struct usb_endpoint_descriptor tegra_xudc_ep0_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 0,
+ .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
+ .wMaxPacketSize = cpu_to_le16(64),
+};
+
+struct tegra_xudc_soc {
+ const char * const *supply_names;
+ unsigned int num_supplies;
+ const char * const *clock_names;
+ unsigned int num_clks;
+ bool u1_enable;
+ bool u2_enable;
+ bool lpm_enable;
+ bool invalid_seq_num;
+ bool pls_quirk;
+ bool port_reset_quirk;
+ bool has_ipfs;
+};
+
+static inline u32 fpci_readl(struct tegra_xudc *xudc, unsigned int offset)
+{
+ return readl(xudc->fpci + offset);
+}
+
+static inline void fpci_writel(struct tegra_xudc *xudc, u32 val,
+ unsigned int offset)
+{
+ writel(val, xudc->fpci + offset);
+}
+
+static inline u32 ipfs_readl(struct tegra_xudc *xudc, unsigned int offset)
+{
+ return readl(xudc->ipfs + offset);
+}
+
+static inline void ipfs_writel(struct tegra_xudc *xudc, u32 val,
+ unsigned int offset)
+{
+ writel(val, xudc->ipfs + offset);
+}
+
+static inline u32 xudc_readl(struct tegra_xudc *xudc, unsigned int offset)
+{
+ return readl(xudc->base + offset);
+}
+
+static inline void xudc_writel(struct tegra_xudc *xudc, u32 val,
+ unsigned int offset)
+{
+ writel(val, xudc->base + offset);
+}
+
+static inline int xudc_readl_poll(struct tegra_xudc *xudc,
+ unsigned int offset, u32 mask, u32 val)
+{
+ u32 regval;
+
+ return readl_poll_timeout_atomic(xudc->base + offset, regval,
+ (regval & mask) == val, 1, 100);
+}
+
+static inline struct tegra_xudc *to_xudc(struct usb_gadget *gadget)
+{
+ return container_of(gadget, struct tegra_xudc, gadget);
+}
+
+static inline struct tegra_xudc_ep *to_xudc_ep(struct usb_ep *ep)
+{
+ return container_of(ep, struct tegra_xudc_ep, usb_ep);
+}
+
+static inline struct tegra_xudc_request *to_xudc_req(struct usb_request *req)
+{
+ return container_of(req, struct tegra_xudc_request, usb_req);
+}
+
+static inline void dump_trb(struct tegra_xudc *xudc, const char *type,
+ struct tegra_xudc_trb *trb)
+{
+ dev_dbg(xudc->dev,
+ "%s: %p, lo = %#x, hi = %#x, status = %#x, control = %#x\n",
+ type, trb, trb->data_lo, trb->data_hi, trb->status,
+ trb->control);
+}
+
+static void tegra_xudc_device_mode_on(struct tegra_xudc *xudc)
+{
+ int err;
+
+ pm_runtime_get_sync(xudc->dev);
+
+ err = phy_power_on(xudc->utmi_phy);
+ if (err < 0)
+ dev_err(xudc->dev, "utmi power on failed %d\n", err);
+
+ err = phy_power_on(xudc->usb3_phy);
+ if (err < 0)
+ dev_err(xudc->dev, "usb3 phy power on failed %d\n", err);
+
+ dev_dbg(xudc->dev, "device mode on\n");
+
+ tegra_xusb_padctl_set_vbus_override(xudc->padctl, true);
+
+ xudc->device_mode = USB_ROLE_DEVICE;
+}
+
+static void tegra_xudc_device_mode_off(struct tegra_xudc *xudc)
+{
+ bool connected = false;
+ u32 pls, val;
+ int err;
+
+ dev_dbg(xudc->dev, "device mode off\n");
+
+ connected = !!(xudc_readl(xudc, PORTSC) & PORTSC_CCS);
+
+ reinit_completion(&xudc->disconnect_complete);
+
+ tegra_xusb_padctl_set_vbus_override(xudc->padctl, false);
+
+ pls = (xudc_readl(xudc, PORTSC) & PORTSC_PLS_MASK) >>
+ PORTSC_PLS_SHIFT;
+
+ /* Direct link to U0 if disconnected in RESUME or U2. */
+ if (xudc->soc->pls_quirk && xudc->gadget.speed == USB_SPEED_SUPER &&
+ (pls == PORTSC_PLS_RESUME || pls == PORTSC_PLS_U2)) {
+ val = xudc_readl(xudc, PORTPM);
+ val |= PORTPM_FRWE;
+ xudc_writel(xudc, val, PORTPM);
+
+ val = xudc_readl(xudc, PORTSC);
+ val &= ~(PORTSC_CHANGE_MASK | PORTSC_PLS_MASK);
+ val |= PORTSC_LWS | PORTSC_PLS(PORTSC_PLS_U0);
+ xudc_writel(xudc, val, PORTSC);
+ }
+
+ xudc->device_mode = USB_ROLE_NONE;
+
+ /* Wait for disconnect event. */
+ if (connected)
+ wait_for_completion(&xudc->disconnect_complete);
+
+ /* Make sure interrupt handler has completed before powergating. */
+ synchronize_irq(xudc->irq);
+
+ err = phy_power_off(xudc->utmi_phy);
+ if (err < 0)
+ dev_err(xudc->dev, "utmi_phy power off failed %d\n", err);
+
+ err = phy_power_off(xudc->usb3_phy);
+ if (err < 0)
+ dev_err(xudc->dev, "usb3_phy power off failed %d\n", err);
+
+ pm_runtime_put(xudc->dev);
+}
+
+static void tegra_xudc_usb_role_sw_work(struct work_struct *work)
+{
+ struct tegra_xudc *xudc = container_of(work, struct tegra_xudc,
+ usb_role_sw_work);
+
+ if (!xudc->usb_role_sw ||
+ usb_role_switch_get_role(xudc->usb_role_sw) == USB_ROLE_DEVICE)
+ tegra_xudc_device_mode_on(xudc);
+ else
+ tegra_xudc_device_mode_off(xudc);
+
+}
+
+static int tegra_xudc_usb_role_sw_set(struct device *dev, enum usb_role role)
+{
+ struct tegra_xudc *xudc = dev_get_drvdata(dev);
+ unsigned long flags;
+
+ dev_dbg(dev, "%s role is %d\n", __func__, role);
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ if (!xudc->suspended)
+ schedule_work(&xudc->usb_role_sw_work);
+
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return 0;
+}
+
+static void tegra_xudc_plc_reset_work(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct tegra_xudc *xudc = container_of(dwork, struct tegra_xudc,
+ plc_reset_work);
+ unsigned long flags;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ if (xudc->wait_csc) {
+ u32 pls = (xudc_readl(xudc, PORTSC) & PORTSC_PLS_MASK) >>
+ PORTSC_PLS_SHIFT;
+
+ if (pls == PORTSC_PLS_INACTIVE) {
+ dev_info(xudc->dev, "PLS = Inactive. Toggle VBUS\n");
+ tegra_xusb_padctl_set_vbus_override(xudc->padctl,
+ false);
+ tegra_xusb_padctl_set_vbus_override(xudc->padctl, true);
+ xudc->wait_csc = false;
+ }
+ }
+
+ spin_unlock_irqrestore(&xudc->lock, flags);
+}
+
+static void tegra_xudc_port_reset_war_work(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct tegra_xudc *xudc =
+ container_of(dwork, struct tegra_xudc, port_reset_war_work);
+ unsigned long flags;
+ u32 pls;
+ int ret;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ if ((xudc->device_mode == USB_ROLE_DEVICE)
+ && xudc->wait_for_sec_prc) {
+ pls = (xudc_readl(xudc, PORTSC) & PORTSC_PLS_MASK) >>
+ PORTSC_PLS_SHIFT;
+ dev_dbg(xudc->dev, "pls = %x\n", pls);
+
+ if (pls == PORTSC_PLS_DISABLED) {
+ dev_dbg(xudc->dev, "toggle vbus\n");
+ /* PRC doesn't complete in 100ms, toggle the vbus */
+ ret = tegra_phy_xusb_utmi_port_reset(xudc->utmi_phy);
+ if (ret == 1)
+ xudc->wait_for_sec_prc = 0;
+ }
+ }
+
+ spin_unlock_irqrestore(&xudc->lock, flags);
+}
+
+static dma_addr_t trb_virt_to_phys(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_trb *trb)
+{
+ unsigned int index;
+
+ index = trb - ep->transfer_ring;
+
+ if (WARN_ON(index >= XUDC_TRANSFER_RING_SIZE))
+ return 0;
+
+ return (ep->transfer_ring_phys + index * sizeof(*trb));
+}
+
+static struct tegra_xudc_trb *trb_phys_to_virt(struct tegra_xudc_ep *ep,
+ dma_addr_t addr)
+{
+ struct tegra_xudc_trb *trb;
+ unsigned int index;
+
+ index = (addr - ep->transfer_ring_phys) / sizeof(*trb);
+
+ if (WARN_ON(index >= XUDC_TRANSFER_RING_SIZE))
+ return NULL;
+
+ trb = &ep->transfer_ring[index];
+
+ return trb;
+}
+
+static void ep_reload(struct tegra_xudc *xudc, unsigned int ep)
+{
+ xudc_writel(xudc, BIT(ep), EP_RELOAD);
+ xudc_readl_poll(xudc, EP_RELOAD, BIT(ep), 0);
+}
+
+static void ep_pause(struct tegra_xudc *xudc, unsigned int ep)
+{
+ u32 val;
+
+ val = xudc_readl(xudc, EP_PAUSE);
+ if (val & BIT(ep))
+ return;
+ val |= BIT(ep);
+
+ xudc_writel(xudc, val, EP_PAUSE);
+
+ xudc_readl_poll(xudc, EP_STCHG, BIT(ep), BIT(ep));
+
+ xudc_writel(xudc, BIT(ep), EP_STCHG);
+}
+
+static void ep_unpause(struct tegra_xudc *xudc, unsigned int ep)
+{
+ u32 val;
+
+ val = xudc_readl(xudc, EP_PAUSE);
+ if (!(val & BIT(ep)))
+ return;
+ val &= ~BIT(ep);
+
+ xudc_writel(xudc, val, EP_PAUSE);
+
+ xudc_readl_poll(xudc, EP_STCHG, BIT(ep), BIT(ep));
+
+ xudc_writel(xudc, BIT(ep), EP_STCHG);
+}
+
+static void ep_unpause_all(struct tegra_xudc *xudc)
+{
+ u32 val;
+
+ val = xudc_readl(xudc, EP_PAUSE);
+
+ xudc_writel(xudc, 0, EP_PAUSE);
+
+ xudc_readl_poll(xudc, EP_STCHG, val, val);
+
+ xudc_writel(xudc, val, EP_STCHG);
+}
+
+static void ep_halt(struct tegra_xudc *xudc, unsigned int ep)
+{
+ u32 val;
+
+ val = xudc_readl(xudc, EP_HALT);
+ if (val & BIT(ep))
+ return;
+ val |= BIT(ep);
+ xudc_writel(xudc, val, EP_HALT);
+
+ xudc_readl_poll(xudc, EP_STCHG, BIT(ep), BIT(ep));
+
+ xudc_writel(xudc, BIT(ep), EP_STCHG);
+}
+
+static void ep_unhalt(struct tegra_xudc *xudc, unsigned int ep)
+{
+ u32 val;
+
+ val = xudc_readl(xudc, EP_HALT);
+ if (!(val & BIT(ep)))
+ return;
+ val &= ~BIT(ep);
+ xudc_writel(xudc, val, EP_HALT);
+
+ xudc_readl_poll(xudc, EP_STCHG, BIT(ep), BIT(ep));
+
+ xudc_writel(xudc, BIT(ep), EP_STCHG);
+}
+
+static void ep_unhalt_all(struct tegra_xudc *xudc)
+{
+ u32 val;
+
+ val = xudc_readl(xudc, EP_HALT);
+ if (!val)
+ return;
+ xudc_writel(xudc, 0, EP_HALT);
+
+ xudc_readl_poll(xudc, EP_STCHG, val, val);
+
+ xudc_writel(xudc, val, EP_STCHG);
+}
+
+static void ep_wait_for_stopped(struct tegra_xudc *xudc, unsigned int ep)
+{
+ xudc_readl_poll(xudc, EP_STOPPED, BIT(ep), BIT(ep));
+ xudc_writel(xudc, BIT(ep), EP_STOPPED);
+}
+
+static void ep_wait_for_inactive(struct tegra_xudc *xudc, unsigned int ep)
+{
+ xudc_readl_poll(xudc, EP_THREAD_ACTIVE, BIT(ep), 0);
+}
+
+static void tegra_xudc_req_done(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_request *req, int status)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+
+ dev_dbg(xudc->dev, "completing request %p on EP %u with status %d\n",
+ req, ep->index, status);
+
+ if (likely(req->usb_req.status == -EINPROGRESS))
+ req->usb_req.status = status;
+
+ list_del_init(&req->list);
+
+ if (usb_endpoint_xfer_control(ep->desc)) {
+ usb_gadget_unmap_request(&xudc->gadget, &req->usb_req,
+ (xudc->setup_state ==
+ DATA_STAGE_XFER));
+ } else {
+ usb_gadget_unmap_request(&xudc->gadget, &req->usb_req,
+ usb_endpoint_dir_in(ep->desc));
+ }
+
+ spin_unlock(&xudc->lock);
+ usb_gadget_giveback_request(&ep->usb_ep, &req->usb_req);
+ spin_lock(&xudc->lock);
+}
+
+static void tegra_xudc_ep_nuke(struct tegra_xudc_ep *ep, int status)
+{
+ struct tegra_xudc_request *req;
+
+ while (!list_empty(&ep->queue)) {
+ req = list_first_entry(&ep->queue, struct tegra_xudc_request,
+ list);
+ tegra_xudc_req_done(ep, req, status);
+ }
+}
+
+static unsigned int ep_available_trbs(struct tegra_xudc_ep *ep)
+{
+ if (ep->ring_full)
+ return 0;
+
+ if (ep->deq_ptr > ep->enq_ptr)
+ return ep->deq_ptr - ep->enq_ptr - 1;
+
+ return XUDC_TRANSFER_RING_SIZE - (ep->enq_ptr - ep->deq_ptr) - 2;
+}
+
+static void tegra_xudc_queue_one_trb(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_request *req,
+ struct tegra_xudc_trb *trb,
+ bool ioc)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+ dma_addr_t buf_addr;
+ size_t len;
+
+ len = min_t(size_t, XUDC_TRB_MAX_BUFFER_SIZE, req->usb_req.length -
+ req->buf_queued);
+ if (len > 0)
+ buf_addr = req->usb_req.dma + req->buf_queued;
+ else
+ buf_addr = 0;
+
+ trb_write_data_ptr(trb, buf_addr);
+
+ trb_write_transfer_len(trb, len);
+ trb_write_td_size(trb, req->trbs_needed - req->trbs_queued - 1);
+
+ if (req->trbs_queued == req->trbs_needed - 1 ||
+ (req->need_zlp && req->trbs_queued == req->trbs_needed - 2))
+ trb_write_chain(trb, 0);
+ else
+ trb_write_chain(trb, 1);
+
+ trb_write_ioc(trb, ioc);
+
+ if (usb_endpoint_dir_out(ep->desc) ||
+ (usb_endpoint_xfer_control(ep->desc) &&
+ (xudc->setup_state == DATA_STAGE_RECV)))
+ trb_write_isp(trb, 1);
+ else
+ trb_write_isp(trb, 0);
+
+ if (usb_endpoint_xfer_control(ep->desc)) {
+ if (xudc->setup_state == DATA_STAGE_XFER ||
+ xudc->setup_state == DATA_STAGE_RECV)
+ trb_write_type(trb, TRB_TYPE_DATA_STAGE);
+ else
+ trb_write_type(trb, TRB_TYPE_STATUS_STAGE);
+
+ if (xudc->setup_state == DATA_STAGE_XFER ||
+ xudc->setup_state == STATUS_STAGE_XFER)
+ trb_write_data_stage_dir(trb, 1);
+ else
+ trb_write_data_stage_dir(trb, 0);
+ } else if (usb_endpoint_xfer_isoc(ep->desc)) {
+ trb_write_type(trb, TRB_TYPE_ISOCH);
+ trb_write_sia(trb, 1);
+ trb_write_frame_id(trb, 0);
+ trb_write_tlbpc(trb, 0);
+ } else if (usb_ss_max_streams(ep->comp_desc)) {
+ trb_write_type(trb, TRB_TYPE_STREAM);
+ trb_write_stream_id(trb, req->usb_req.stream_id);
+ } else {
+ trb_write_type(trb, TRB_TYPE_NORMAL);
+ trb_write_stream_id(trb, 0);
+ }
+
+ trb_write_cycle(trb, ep->pcs);
+
+ req->trbs_queued++;
+ req->buf_queued += len;
+
+ dump_trb(xudc, "TRANSFER", trb);
+}
+
+static unsigned int tegra_xudc_queue_trbs(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_request *req)
+{
+ unsigned int i, count, available;
+ bool wait_td = false;
+
+ available = ep_available_trbs(ep);
+ count = req->trbs_needed - req->trbs_queued;
+ if (available < count) {
+ count = available;
+ ep->ring_full = true;
+ }
+
+ /*
+ * To generate zero-length packet on USB bus, SW needs schedule a
+ * standalone zero-length TD. According to HW's behavior, SW needs
+ * to schedule TDs in different ways for different endpoint types.
+ *
+ * For control endpoint:
+ * - Data stage TD (IOC = 1, CH = 0)
+ * - Ring doorbell and wait transfer event
+ * - Data stage TD for ZLP (IOC = 1, CH = 0)
+ * - Ring doorbell
+ *
+ * For bulk and interrupt endpoints:
+ * - Normal transfer TD (IOC = 0, CH = 0)
+ * - Normal transfer TD for ZLP (IOC = 1, CH = 0)
+ * - Ring doorbell
+ */
+
+ if (req->need_zlp && usb_endpoint_xfer_control(ep->desc) && count > 1)
+ wait_td = true;
+
+ if (!req->first_trb)
+ req->first_trb = &ep->transfer_ring[ep->enq_ptr];
+
+ for (i = 0; i < count; i++) {
+ struct tegra_xudc_trb *trb = &ep->transfer_ring[ep->enq_ptr];
+ bool ioc = false;
+
+ if ((i == count - 1) || (wait_td && i == count - 2))
+ ioc = true;
+
+ tegra_xudc_queue_one_trb(ep, req, trb, ioc);
+ req->last_trb = trb;
+
+ ep->enq_ptr++;
+ if (ep->enq_ptr == XUDC_TRANSFER_RING_SIZE - 1) {
+ trb = &ep->transfer_ring[ep->enq_ptr];
+ trb_write_cycle(trb, ep->pcs);
+ ep->pcs = !ep->pcs;
+ ep->enq_ptr = 0;
+ }
+
+ if (ioc)
+ break;
+ }
+
+ return count;
+}
+
+static void tegra_xudc_ep_ring_doorbell(struct tegra_xudc_ep *ep)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+ u32 val;
+
+ if (list_empty(&ep->queue))
+ return;
+
+ val = DB_TARGET(ep->index);
+ if (usb_endpoint_xfer_control(ep->desc)) {
+ val |= DB_STREAMID(xudc->setup_seq_num);
+ } else if (usb_ss_max_streams(ep->comp_desc) > 0) {
+ struct tegra_xudc_request *req;
+
+ /* Don't ring doorbell if the stream has been rejected. */
+ if (ep->stream_rejected)
+ return;
+
+ req = list_first_entry(&ep->queue, struct tegra_xudc_request,
+ list);
+ val |= DB_STREAMID(req->usb_req.stream_id);
+ }
+
+ dev_dbg(xudc->dev, "ring doorbell: %#x\n", val);
+ xudc_writel(xudc, val, DB);
+}
+
+static void tegra_xudc_ep_kick_queue(struct tegra_xudc_ep *ep)
+{
+ struct tegra_xudc_request *req;
+ bool trbs_queued = false;
+
+ list_for_each_entry(req, &ep->queue, list) {
+ if (ep->ring_full)
+ break;
+
+ if (tegra_xudc_queue_trbs(ep, req) > 0)
+ trbs_queued = true;
+ }
+
+ if (trbs_queued)
+ tegra_xudc_ep_ring_doorbell(ep);
+}
+
+static int
+__tegra_xudc_ep_queue(struct tegra_xudc_ep *ep, struct tegra_xudc_request *req)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+ int err;
+
+ if (usb_endpoint_xfer_control(ep->desc) && !list_empty(&ep->queue)) {
+ dev_err(xudc->dev, "control EP has pending transfers\n");
+ return -EINVAL;
+ }
+
+ if (usb_endpoint_xfer_control(ep->desc)) {
+ err = usb_gadget_map_request(&xudc->gadget, &req->usb_req,
+ (xudc->setup_state ==
+ DATA_STAGE_XFER));
+ } else {
+ err = usb_gadget_map_request(&xudc->gadget, &req->usb_req,
+ usb_endpoint_dir_in(ep->desc));
+ }
+
+ if (err < 0) {
+ dev_err(xudc->dev, "failed to map request: %d\n", err);
+ return err;
+ }
+
+ req->first_trb = NULL;
+ req->last_trb = NULL;
+ req->buf_queued = 0;
+ req->trbs_queued = 0;
+ req->need_zlp = false;
+ req->trbs_needed = DIV_ROUND_UP(req->usb_req.length,
+ XUDC_TRB_MAX_BUFFER_SIZE);
+ if (req->usb_req.length == 0)
+ req->trbs_needed++;
+
+ if (!usb_endpoint_xfer_isoc(ep->desc) &&
+ req->usb_req.zero && req->usb_req.length &&
+ ((req->usb_req.length % ep->usb_ep.maxpacket) == 0)) {
+ req->trbs_needed++;
+ req->need_zlp = true;
+ }
+
+ req->usb_req.status = -EINPROGRESS;
+ req->usb_req.actual = 0;
+
+ list_add_tail(&req->list, &ep->queue);
+
+ tegra_xudc_ep_kick_queue(ep);
+
+ return 0;
+}
+
+static int
+tegra_xudc_ep_queue(struct usb_ep *usb_ep, struct usb_request *usb_req,
+ gfp_t gfp)
+{
+ struct tegra_xudc_request *req;
+ struct tegra_xudc_ep *ep;
+ struct tegra_xudc *xudc;
+ unsigned long flags;
+ int ret;
+
+ if (!usb_ep || !usb_req)
+ return -EINVAL;
+
+ ep = to_xudc_ep(usb_ep);
+ req = to_xudc_req(usb_req);
+ xudc = ep->xudc;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ if (xudc->powergated || !ep->desc) {
+ ret = -ESHUTDOWN;
+ goto unlock;
+ }
+
+ ret = __tegra_xudc_ep_queue(ep, req);
+unlock:
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return ret;
+}
+
+static void squeeze_transfer_ring(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_request *req)
+{
+ struct tegra_xudc_trb *trb = req->first_trb;
+ bool pcs_enq = trb_read_cycle(trb);
+ bool pcs;
+
+ /*
+ * Clear out all the TRBs part of or after the cancelled request,
+ * and must correct trb cycle bit to the last un-enqueued state.
+ */
+ while (trb != &ep->transfer_ring[ep->enq_ptr]) {
+ pcs = trb_read_cycle(trb);
+ memset(trb, 0, sizeof(*trb));
+ trb_write_cycle(trb, !pcs);
+ trb++;
+
+ if (trb_read_type(trb) == TRB_TYPE_LINK)
+ trb = ep->transfer_ring;
+ }
+
+ /* Requests will be re-queued at the start of the cancelled request. */
+ ep->enq_ptr = req->first_trb - ep->transfer_ring;
+ /*
+ * Retrieve the correct cycle bit state from the first trb of
+ * the cancelled request.
+ */
+ ep->pcs = pcs_enq;
+ ep->ring_full = false;
+ list_for_each_entry_continue(req, &ep->queue, list) {
+ req->usb_req.status = -EINPROGRESS;
+ req->usb_req.actual = 0;
+
+ req->first_trb = NULL;
+ req->last_trb = NULL;
+ req->buf_queued = 0;
+ req->trbs_queued = 0;
+ }
+}
+
+/*
+ * Determine if the given TRB is in the range [first trb, last trb] for the
+ * given request.
+ */
+static bool trb_in_request(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_request *req,
+ struct tegra_xudc_trb *trb)
+{
+ dev_dbg(ep->xudc->dev, "%s: request %p -> %p; trb %p\n", __func__,
+ req->first_trb, req->last_trb, trb);
+
+ if (trb >= req->first_trb && (trb <= req->last_trb ||
+ req->last_trb < req->first_trb))
+ return true;
+
+ if (trb < req->first_trb && trb <= req->last_trb &&
+ req->last_trb < req->first_trb)
+ return true;
+
+ return false;
+}
+
+/*
+ * Determine if the given TRB is in the range [EP enqueue pointer, first TRB)
+ * for the given endpoint and request.
+ */
+static bool trb_before_request(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_request *req,
+ struct tegra_xudc_trb *trb)
+{
+ struct tegra_xudc_trb *enq_trb = &ep->transfer_ring[ep->enq_ptr];
+
+ dev_dbg(ep->xudc->dev, "%s: request %p -> %p; enq ptr: %p; trb %p\n",
+ __func__, req->first_trb, req->last_trb, enq_trb, trb);
+
+ if (trb < req->first_trb && (enq_trb <= trb ||
+ req->first_trb < enq_trb))
+ return true;
+
+ if (trb > req->first_trb && req->first_trb < enq_trb && enq_trb <= trb)
+ return true;
+
+ return false;
+}
+
+static int
+__tegra_xudc_ep_dequeue(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_request *req)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+ struct tegra_xudc_request *r;
+ struct tegra_xudc_trb *deq_trb;
+ bool busy, kick_queue = false;
+ int ret = 0;
+
+ /* Make sure the request is actually queued to this endpoint. */
+ list_for_each_entry(r, &ep->queue, list) {
+ if (r == req)
+ break;
+ }
+
+ if (r != req)
+ return -EINVAL;
+
+ /* Request hasn't been queued in the transfer ring yet. */
+ if (!req->trbs_queued) {
+ tegra_xudc_req_done(ep, req, -ECONNRESET);
+ return 0;
+ }
+
+ /* Halt DMA for this endpiont. */
+ if (ep_ctx_read_state(ep->context) == EP_STATE_RUNNING) {
+ ep_pause(xudc, ep->index);
+ ep_wait_for_inactive(xudc, ep->index);
+ }
+
+ deq_trb = trb_phys_to_virt(ep, ep_ctx_read_deq_ptr(ep->context));
+ /* Is the hardware processing the TRB at the dequeue pointer? */
+ busy = (trb_read_cycle(deq_trb) == ep_ctx_read_dcs(ep->context));
+
+ if (trb_in_request(ep, req, deq_trb) && busy) {
+ /*
+ * Request has been partially completed or it hasn't
+ * started processing yet.
+ */
+ dma_addr_t deq_ptr;
+
+ squeeze_transfer_ring(ep, req);
+
+ req->usb_req.actual = ep_ctx_read_edtla(ep->context);
+ tegra_xudc_req_done(ep, req, -ECONNRESET);
+ kick_queue = true;
+
+ /* EDTLA is > 0: request has been partially completed */
+ if (req->usb_req.actual > 0) {
+ /*
+ * Abort the pending transfer and update the dequeue
+ * pointer
+ */
+ ep_ctx_write_edtla(ep->context, 0);
+ ep_ctx_write_partial_td(ep->context, 0);
+ ep_ctx_write_data_offset(ep->context, 0);
+
+ deq_ptr = trb_virt_to_phys(ep,
+ &ep->transfer_ring[ep->enq_ptr]);
+
+ if (dma_mapping_error(xudc->dev, deq_ptr)) {
+ ret = -EINVAL;
+ } else {
+ ep_ctx_write_deq_ptr(ep->context, deq_ptr);
+ ep_ctx_write_dcs(ep->context, ep->pcs);
+ ep_reload(xudc, ep->index);
+ }
+ }
+ } else if (trb_before_request(ep, req, deq_trb) && busy) {
+ /* Request hasn't started processing yet. */
+ squeeze_transfer_ring(ep, req);
+
+ tegra_xudc_req_done(ep, req, -ECONNRESET);
+ kick_queue = true;
+ } else {
+ /*
+ * Request has completed, but we haven't processed the
+ * completion event yet.
+ */
+ tegra_xudc_req_done(ep, req, -ECONNRESET);
+ ret = -EINVAL;
+ }
+
+ /* Resume the endpoint. */
+ ep_unpause(xudc, ep->index);
+
+ if (kick_queue)
+ tegra_xudc_ep_kick_queue(ep);
+
+ return ret;
+}
+
+static int
+tegra_xudc_ep_dequeue(struct usb_ep *usb_ep, struct usb_request *usb_req)
+{
+ struct tegra_xudc_request *req;
+ struct tegra_xudc_ep *ep;
+ struct tegra_xudc *xudc;
+ unsigned long flags;
+ int ret;
+
+ if (!usb_ep || !usb_req)
+ return -EINVAL;
+
+ ep = to_xudc_ep(usb_ep);
+ req = to_xudc_req(usb_req);
+ xudc = ep->xudc;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ if (xudc->powergated || !ep->desc) {
+ ret = -ESHUTDOWN;
+ goto unlock;
+ }
+
+ ret = __tegra_xudc_ep_dequeue(ep, req);
+unlock:
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return ret;
+}
+
+static int __tegra_xudc_ep_set_halt(struct tegra_xudc_ep *ep, bool halt)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+
+ if (!ep->desc)
+ return -EINVAL;
+
+ if (usb_endpoint_xfer_isoc(ep->desc)) {
+ dev_err(xudc->dev, "can't halt isoc EP\n");
+ return -ENOTSUPP;
+ }
+
+ if (!!(xudc_readl(xudc, EP_HALT) & BIT(ep->index)) == halt) {
+ dev_dbg(xudc->dev, "EP %u already %s\n", ep->index,
+ halt ? "halted" : "not halted");
+ return 0;
+ }
+
+ if (halt) {
+ ep_halt(xudc, ep->index);
+ } else {
+ ep_ctx_write_state(ep->context, EP_STATE_DISABLED);
+
+ ep_reload(xudc, ep->index);
+
+ ep_ctx_write_state(ep->context, EP_STATE_RUNNING);
+ ep_ctx_write_seq_num(ep->context, 0);
+
+ ep_reload(xudc, ep->index);
+ ep_unpause(xudc, ep->index);
+ ep_unhalt(xudc, ep->index);
+
+ tegra_xudc_ep_ring_doorbell(ep);
+ }
+
+ return 0;
+}
+
+static int tegra_xudc_ep_set_halt(struct usb_ep *usb_ep, int value)
+{
+ struct tegra_xudc_ep *ep;
+ struct tegra_xudc *xudc;
+ unsigned long flags;
+ int ret;
+
+ if (!usb_ep)
+ return -EINVAL;
+
+ ep = to_xudc_ep(usb_ep);
+ xudc = ep->xudc;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ if (xudc->powergated) {
+ ret = -ESHUTDOWN;
+ goto unlock;
+ }
+
+ if (value && usb_endpoint_dir_in(ep->desc) &&
+ !list_empty(&ep->queue)) {
+ dev_err(xudc->dev, "can't halt EP with requests pending\n");
+ ret = -EAGAIN;
+ goto unlock;
+ }
+
+ ret = __tegra_xudc_ep_set_halt(ep, value);
+unlock:
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return ret;
+}
+
+static void tegra_xudc_ep_context_setup(struct tegra_xudc_ep *ep)
+{
+ const struct usb_endpoint_descriptor *desc = ep->desc;
+ const struct usb_ss_ep_comp_descriptor *comp_desc = ep->comp_desc;
+ struct tegra_xudc *xudc = ep->xudc;
+ u16 maxpacket, maxburst = 0, esit = 0;
+ u32 val;
+
+ maxpacket = usb_endpoint_maxp(desc) & 0x7ff;
+ if (xudc->gadget.speed == USB_SPEED_SUPER) {
+ if (!usb_endpoint_xfer_control(desc))
+ maxburst = comp_desc->bMaxBurst;
+
+ if (usb_endpoint_xfer_int(desc) || usb_endpoint_xfer_isoc(desc))
+ esit = le16_to_cpu(comp_desc->wBytesPerInterval);
+ } else if ((xudc->gadget.speed < USB_SPEED_SUPER) &&
+ (usb_endpoint_xfer_int(desc) ||
+ usb_endpoint_xfer_isoc(desc))) {
+ if (xudc->gadget.speed == USB_SPEED_HIGH) {
+ maxburst = (usb_endpoint_maxp(desc) >> 11) & 0x3;
+ if (maxburst == 0x3) {
+ dev_warn(xudc->dev,
+ "invalid endpoint maxburst\n");
+ maxburst = 0x2;
+ }
+ }
+ esit = maxpacket * (maxburst + 1);
+ }
+
+ memset(ep->context, 0, sizeof(*ep->context));
+
+ ep_ctx_write_state(ep->context, EP_STATE_RUNNING);
+ ep_ctx_write_interval(ep->context, desc->bInterval);
+ if (xudc->gadget.speed == USB_SPEED_SUPER) {
+ if (usb_endpoint_xfer_isoc(desc)) {
+ ep_ctx_write_mult(ep->context,
+ comp_desc->bmAttributes & 0x3);
+ }
+
+ if (usb_endpoint_xfer_bulk(desc)) {
+ ep_ctx_write_max_pstreams(ep->context,
+ comp_desc->bmAttributes &
+ 0x1f);
+ ep_ctx_write_lsa(ep->context, 1);
+ }
+ }
+
+ if (!usb_endpoint_xfer_control(desc) && usb_endpoint_dir_out(desc))
+ val = usb_endpoint_type(desc);
+ else
+ val = usb_endpoint_type(desc) + EP_TYPE_CONTROL;
+
+ ep_ctx_write_type(ep->context, val);
+ ep_ctx_write_cerr(ep->context, 0x3);
+ ep_ctx_write_max_packet_size(ep->context, maxpacket);
+ ep_ctx_write_max_burst_size(ep->context, maxburst);
+
+ ep_ctx_write_deq_ptr(ep->context, ep->transfer_ring_phys);
+ ep_ctx_write_dcs(ep->context, ep->pcs);
+
+ /* Select a reasonable average TRB length based on endpoint type. */
+ switch (usb_endpoint_type(desc)) {
+ case USB_ENDPOINT_XFER_CONTROL:
+ val = 8;
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ val = 1024;
+ break;
+ case USB_ENDPOINT_XFER_BULK:
+ case USB_ENDPOINT_XFER_ISOC:
+ default:
+ val = 3072;
+ break;
+ }
+
+ ep_ctx_write_avg_trb_len(ep->context, val);
+ ep_ctx_write_max_esit_payload(ep->context, esit);
+
+ ep_ctx_write_cerrcnt(ep->context, 0x3);
+}
+
+static void setup_link_trb(struct tegra_xudc_ep *ep,
+ struct tegra_xudc_trb *trb)
+{
+ trb_write_data_ptr(trb, ep->transfer_ring_phys);
+ trb_write_type(trb, TRB_TYPE_LINK);
+ trb_write_toggle_cycle(trb, 1);
+}
+
+static int __tegra_xudc_ep_disable(struct tegra_xudc_ep *ep)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+
+ if (ep_ctx_read_state(ep->context) == EP_STATE_DISABLED) {
+ dev_err(xudc->dev, "endpoint %u already disabled\n",
+ ep->index);
+ return -EINVAL;
+ }
+
+ ep_ctx_write_state(ep->context, EP_STATE_DISABLED);
+
+ ep_reload(xudc, ep->index);
+
+ tegra_xudc_ep_nuke(ep, -ESHUTDOWN);
+
+ xudc->nr_enabled_eps--;
+ if (usb_endpoint_xfer_isoc(ep->desc))
+ xudc->nr_isoch_eps--;
+
+ ep->desc = NULL;
+ ep->comp_desc = NULL;
+
+ memset(ep->context, 0, sizeof(*ep->context));
+
+ ep_unpause(xudc, ep->index);
+ ep_unhalt(xudc, ep->index);
+ if (xudc_readl(xudc, EP_STOPPED) & BIT(ep->index))
+ xudc_writel(xudc, BIT(ep->index), EP_STOPPED);
+
+ /*
+ * If this is the last endpoint disabled in a de-configure request,
+ * switch back to address state.
+ */
+ if ((xudc->device_state == USB_STATE_CONFIGURED) &&
+ (xudc->nr_enabled_eps == 1)) {
+ u32 val;
+
+ xudc->device_state = USB_STATE_ADDRESS;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+
+ val = xudc_readl(xudc, CTRL);
+ val &= ~CTRL_RUN;
+ xudc_writel(xudc, val, CTRL);
+ }
+
+ dev_info(xudc->dev, "ep %u disabled\n", ep->index);
+
+ return 0;
+}
+
+static int tegra_xudc_ep_disable(struct usb_ep *usb_ep)
+{
+ struct tegra_xudc_ep *ep;
+ struct tegra_xudc *xudc;
+ unsigned long flags;
+ int ret;
+
+ if (!usb_ep)
+ return -EINVAL;
+
+ ep = to_xudc_ep(usb_ep);
+ xudc = ep->xudc;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ if (xudc->powergated) {
+ ret = -ESHUTDOWN;
+ goto unlock;
+ }
+
+ ret = __tegra_xudc_ep_disable(ep);
+unlock:
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return ret;
+}
+
+static int __tegra_xudc_ep_enable(struct tegra_xudc_ep *ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ struct tegra_xudc *xudc = ep->xudc;
+ unsigned int i;
+ u32 val;
+
+ if (xudc->gadget.speed == USB_SPEED_SUPER &&
+ !usb_endpoint_xfer_control(desc) && !ep->usb_ep.comp_desc)
+ return -EINVAL;
+
+ /* Disable the EP if it is not disabled */
+ if (ep_ctx_read_state(ep->context) != EP_STATE_DISABLED)
+ __tegra_xudc_ep_disable(ep);
+
+ ep->desc = desc;
+ ep->comp_desc = ep->usb_ep.comp_desc;
+
+ if (usb_endpoint_xfer_isoc(desc)) {
+ if (xudc->nr_isoch_eps > XUDC_MAX_ISOCH_EPS) {
+ dev_err(xudc->dev, "too many isoch endpoints\n");
+ return -EBUSY;
+ }
+ xudc->nr_isoch_eps++;
+ }
+
+ memset(ep->transfer_ring, 0, XUDC_TRANSFER_RING_SIZE *
+ sizeof(*ep->transfer_ring));
+ setup_link_trb(ep, &ep->transfer_ring[XUDC_TRANSFER_RING_SIZE - 1]);
+
+ ep->enq_ptr = 0;
+ ep->deq_ptr = 0;
+ ep->pcs = true;
+ ep->ring_full = false;
+ xudc->nr_enabled_eps++;
+
+ tegra_xudc_ep_context_setup(ep);
+
+ /*
+ * No need to reload and un-halt EP0. This will be done automatically
+ * once a valid SETUP packet is received.
+ */
+ if (usb_endpoint_xfer_control(desc))
+ goto out;
+
+ /*
+ * Transition to configured state once the first non-control
+ * endpoint is enabled.
+ */
+ if (xudc->device_state == USB_STATE_ADDRESS) {
+ val = xudc_readl(xudc, CTRL);
+ val |= CTRL_RUN;
+ xudc_writel(xudc, val, CTRL);
+
+ xudc->device_state = USB_STATE_CONFIGURED;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+ }
+
+ if (usb_endpoint_xfer_isoc(desc)) {
+ /*
+ * Pause all bulk endpoints when enabling an isoch endpoint
+ * to ensure the isoch endpoint is allocated enough bandwidth.
+ */
+ for (i = 0; i < ARRAY_SIZE(xudc->ep); i++) {
+ if (xudc->ep[i].desc &&
+ usb_endpoint_xfer_bulk(xudc->ep[i].desc))
+ ep_pause(xudc, i);
+ }
+ }
+
+ ep_reload(xudc, ep->index);
+ ep_unpause(xudc, ep->index);
+ ep_unhalt(xudc, ep->index);
+
+ if (usb_endpoint_xfer_isoc(desc)) {
+ for (i = 0; i < ARRAY_SIZE(xudc->ep); i++) {
+ if (xudc->ep[i].desc &&
+ usb_endpoint_xfer_bulk(xudc->ep[i].desc))
+ ep_unpause(xudc, i);
+ }
+ }
+
+out:
+ dev_info(xudc->dev, "EP %u (type: %s, dir: %s) enabled\n", ep->index,
+ usb_ep_type_string(usb_endpoint_type(ep->desc)),
+ usb_endpoint_dir_in(ep->desc) ? "in" : "out");
+
+ return 0;
+}
+
+static int tegra_xudc_ep_enable(struct usb_ep *usb_ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ struct tegra_xudc_ep *ep;
+ struct tegra_xudc *xudc;
+ unsigned long flags;
+ int ret;
+
+ if (!usb_ep || !desc || (desc->bDescriptorType != USB_DT_ENDPOINT))
+ return -EINVAL;
+
+ ep = to_xudc_ep(usb_ep);
+ xudc = ep->xudc;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ if (xudc->powergated) {
+ ret = -ESHUTDOWN;
+ goto unlock;
+ }
+
+ ret = __tegra_xudc_ep_enable(ep, desc);
+unlock:
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return ret;
+}
+
+static struct usb_request *
+tegra_xudc_ep_alloc_request(struct usb_ep *usb_ep, gfp_t gfp)
+{
+ struct tegra_xudc_request *req;
+
+ req = kzalloc(sizeof(*req), gfp);
+ if (!req)
+ return NULL;
+
+ INIT_LIST_HEAD(&req->list);
+
+ return &req->usb_req;
+}
+
+static void tegra_xudc_ep_free_request(struct usb_ep *usb_ep,
+ struct usb_request *usb_req)
+{
+ struct tegra_xudc_request *req = to_xudc_req(usb_req);
+
+ kfree(req);
+}
+
+static struct usb_ep_ops tegra_xudc_ep_ops = {
+ .enable = tegra_xudc_ep_enable,
+ .disable = tegra_xudc_ep_disable,
+ .alloc_request = tegra_xudc_ep_alloc_request,
+ .free_request = tegra_xudc_ep_free_request,
+ .queue = tegra_xudc_ep_queue,
+ .dequeue = tegra_xudc_ep_dequeue,
+ .set_halt = tegra_xudc_ep_set_halt,
+};
+
+static int tegra_xudc_ep0_enable(struct usb_ep *usb_ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ return -EBUSY;
+}
+
+static int tegra_xudc_ep0_disable(struct usb_ep *usb_ep)
+{
+ return -EBUSY;
+}
+
+static struct usb_ep_ops tegra_xudc_ep0_ops = {
+ .enable = tegra_xudc_ep0_enable,
+ .disable = tegra_xudc_ep0_disable,
+ .alloc_request = tegra_xudc_ep_alloc_request,
+ .free_request = tegra_xudc_ep_free_request,
+ .queue = tegra_xudc_ep_queue,
+ .dequeue = tegra_xudc_ep_dequeue,
+ .set_halt = tegra_xudc_ep_set_halt,
+};
+
+static int tegra_xudc_gadget_get_frame(struct usb_gadget *gadget)
+{
+ struct tegra_xudc *xudc = to_xudc(gadget);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ if (xudc->powergated) {
+ ret = -ESHUTDOWN;
+ goto unlock;
+ }
+
+ ret = (xudc_readl(xudc, MFINDEX) & MFINDEX_FRAME_MASK) >>
+ MFINDEX_FRAME_SHIFT;
+unlock:
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return ret;
+}
+
+static void tegra_xudc_resume_device_state(struct tegra_xudc *xudc)
+{
+ unsigned int i;
+ u32 val;
+
+ ep_unpause_all(xudc);
+
+ /* Direct link to U0. */
+ val = xudc_readl(xudc, PORTSC);
+ if (((val & PORTSC_PLS_MASK) >> PORTSC_PLS_SHIFT) != PORTSC_PLS_U0) {
+ val &= ~(PORTSC_CHANGE_MASK | PORTSC_PLS_MASK);
+ val |= PORTSC_LWS | PORTSC_PLS(PORTSC_PLS_U0);
+ xudc_writel(xudc, val, PORTSC);
+ }
+
+ if (xudc->device_state == USB_STATE_SUSPENDED) {
+ xudc->device_state = xudc->resume_state;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+ xudc->resume_state = 0;
+ }
+
+ /*
+ * Doorbells may be dropped if they are sent too soon (< ~200ns)
+ * after unpausing the endpoint. Wait for 500ns just to be safe.
+ */
+ ndelay(500);
+ for (i = 0; i < ARRAY_SIZE(xudc->ep); i++)
+ tegra_xudc_ep_ring_doorbell(&xudc->ep[i]);
+}
+
+static int tegra_xudc_gadget_wakeup(struct usb_gadget *gadget)
+{
+ struct tegra_xudc *xudc = to_xudc(gadget);
+ unsigned long flags;
+ int ret = 0;
+ u32 val;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ if (xudc->powergated) {
+ ret = -ESHUTDOWN;
+ goto unlock;
+ }
+ val = xudc_readl(xudc, PORTPM);
+ dev_dbg(xudc->dev, "%s: PORTPM=%#x, speed=%x\n", __func__,
+ val, gadget->speed);
+
+ if (((xudc->gadget.speed <= USB_SPEED_HIGH) &&
+ (val & PORTPM_RWE)) ||
+ ((xudc->gadget.speed == USB_SPEED_SUPER) &&
+ (val & PORTPM_FRWE))) {
+ tegra_xudc_resume_device_state(xudc);
+
+ /* Send Device Notification packet. */
+ if (xudc->gadget.speed == USB_SPEED_SUPER) {
+ val = DEVNOTIF_LO_TYPE(DEVNOTIF_LO_TYPE_FUNCTION_WAKE)
+ | DEVNOTIF_LO_TRIG;
+ xudc_writel(xudc, 0, DEVNOTIF_HI);
+ xudc_writel(xudc, val, DEVNOTIF_LO);
+ }
+ }
+
+unlock:
+ dev_dbg(xudc->dev, "%s: ret value is %d", __func__, ret);
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return ret;
+}
+
+static int tegra_xudc_gadget_pullup(struct usb_gadget *gadget, int is_on)
+{
+ struct tegra_xudc *xudc = to_xudc(gadget);
+ unsigned long flags;
+ u32 val;
+
+ pm_runtime_get_sync(xudc->dev);
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ if (is_on != xudc->pullup) {
+ val = xudc_readl(xudc, CTRL);
+ if (is_on)
+ val |= CTRL_ENABLE;
+ else
+ val &= ~CTRL_ENABLE;
+ xudc_writel(xudc, val, CTRL);
+ }
+
+ xudc->pullup = is_on;
+ dev_dbg(xudc->dev, "%s: pullup:%d", __func__, is_on);
+
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ pm_runtime_put(xudc->dev);
+
+ return 0;
+}
+
+static int tegra_xudc_gadget_start(struct usb_gadget *gadget,
+ struct usb_gadget_driver *driver)
+{
+ struct tegra_xudc *xudc = to_xudc(gadget);
+ unsigned long flags;
+ u32 val;
+ int ret;
+
+ if (!driver)
+ return -EINVAL;
+
+ pm_runtime_get_sync(xudc->dev);
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ if (xudc->driver) {
+ ret = -EBUSY;
+ goto unlock;
+ }
+
+ xudc->setup_state = WAIT_FOR_SETUP;
+ xudc->device_state = USB_STATE_DEFAULT;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+
+ ret = __tegra_xudc_ep_enable(&xudc->ep[0], &tegra_xudc_ep0_desc);
+ if (ret < 0)
+ goto unlock;
+
+ val = xudc_readl(xudc, CTRL);
+ val |= CTRL_IE | CTRL_LSE;
+ xudc_writel(xudc, val, CTRL);
+
+ val = xudc_readl(xudc, PORTHALT);
+ val |= PORTHALT_STCHG_INTR_EN;
+ xudc_writel(xudc, val, PORTHALT);
+
+ if (xudc->pullup) {
+ val = xudc_readl(xudc, CTRL);
+ val |= CTRL_ENABLE;
+ xudc_writel(xudc, val, CTRL);
+ }
+
+ xudc->driver = driver;
+unlock:
+ dev_dbg(xudc->dev, "%s: ret value is %d", __func__, ret);
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ pm_runtime_put(xudc->dev);
+
+ return ret;
+}
+
+static int tegra_xudc_gadget_stop(struct usb_gadget *gadget)
+{
+ struct tegra_xudc *xudc = to_xudc(gadget);
+ unsigned long flags;
+ u32 val;
+
+ pm_runtime_get_sync(xudc->dev);
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ val = xudc_readl(xudc, CTRL);
+ val &= ~(CTRL_IE | CTRL_ENABLE);
+ xudc_writel(xudc, val, CTRL);
+
+ __tegra_xudc_ep_disable(&xudc->ep[0]);
+
+ xudc->driver = NULL;
+ dev_dbg(xudc->dev, "Gadget stopped");
+
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ pm_runtime_put(xudc->dev);
+
+ return 0;
+}
+
+static int tegra_xudc_set_selfpowered(struct usb_gadget *gadget, int is_on)
+{
+ struct tegra_xudc *xudc = to_xudc(gadget);
+
+ dev_dbg(xudc->dev, "%s: %d\n", __func__, is_on);
+ xudc->selfpowered = !!is_on;
+
+ return 0;
+}
+
+static struct usb_gadget_ops tegra_xudc_gadget_ops = {
+ .get_frame = tegra_xudc_gadget_get_frame,
+ .wakeup = tegra_xudc_gadget_wakeup,
+ .pullup = tegra_xudc_gadget_pullup,
+ .udc_start = tegra_xudc_gadget_start,
+ .udc_stop = tegra_xudc_gadget_stop,
+ .set_selfpowered = tegra_xudc_set_selfpowered,
+};
+
+static void no_op_complete(struct usb_ep *ep, struct usb_request *req)
+{
+}
+
+static int
+tegra_xudc_ep0_queue_status(struct tegra_xudc *xudc,
+ void (*cmpl)(struct usb_ep *, struct usb_request *))
+{
+ xudc->ep0_req->usb_req.buf = NULL;
+ xudc->ep0_req->usb_req.dma = 0;
+ xudc->ep0_req->usb_req.length = 0;
+ xudc->ep0_req->usb_req.complete = cmpl;
+ xudc->ep0_req->usb_req.context = xudc;
+
+ return __tegra_xudc_ep_queue(&xudc->ep[0], xudc->ep0_req);
+}
+
+static int
+tegra_xudc_ep0_queue_data(struct tegra_xudc *xudc, void *buf, size_t len,
+ void (*cmpl)(struct usb_ep *, struct usb_request *))
+{
+ xudc->ep0_req->usb_req.buf = buf;
+ xudc->ep0_req->usb_req.length = len;
+ xudc->ep0_req->usb_req.complete = cmpl;
+ xudc->ep0_req->usb_req.context = xudc;
+
+ return __tegra_xudc_ep_queue(&xudc->ep[0], xudc->ep0_req);
+}
+
+static void tegra_xudc_ep0_req_done(struct tegra_xudc *xudc)
+{
+ switch (xudc->setup_state) {
+ case DATA_STAGE_XFER:
+ xudc->setup_state = STATUS_STAGE_RECV;
+ tegra_xudc_ep0_queue_status(xudc, no_op_complete);
+ break;
+ case DATA_STAGE_RECV:
+ xudc->setup_state = STATUS_STAGE_XFER;
+ tegra_xudc_ep0_queue_status(xudc, no_op_complete);
+ break;
+ default:
+ xudc->setup_state = WAIT_FOR_SETUP;
+ break;
+ }
+}
+
+static int tegra_xudc_ep0_delegate_req(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl)
+{
+ int ret;
+
+ spin_unlock(&xudc->lock);
+ ret = xudc->driver->setup(&xudc->gadget, ctrl);
+ spin_lock(&xudc->lock);
+
+ return ret;
+}
+
+static void set_feature_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct tegra_xudc *xudc = req->context;
+
+ if (xudc->test_mode_pattern) {
+ xudc_writel(xudc, xudc->test_mode_pattern, PORT_TM);
+ xudc->test_mode_pattern = 0;
+ }
+}
+
+static int tegra_xudc_ep0_set_feature(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl)
+{
+ bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE);
+ u32 feature = le16_to_cpu(ctrl->wValue);
+ u32 index = le16_to_cpu(ctrl->wIndex);
+ u32 val, ep;
+ int ret;
+
+ if (le16_to_cpu(ctrl->wLength) != 0)
+ return -EINVAL;
+
+ switch (ctrl->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_DEVICE:
+ switch (feature) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ if ((xudc->gadget.speed == USB_SPEED_SUPER) ||
+ (xudc->device_state == USB_STATE_DEFAULT))
+ return -EINVAL;
+
+ val = xudc_readl(xudc, PORTPM);
+ if (set)
+ val |= PORTPM_RWE;
+ else
+ val &= ~PORTPM_RWE;
+
+ xudc_writel(xudc, val, PORTPM);
+ break;
+ case USB_DEVICE_U1_ENABLE:
+ case USB_DEVICE_U2_ENABLE:
+ if ((xudc->device_state != USB_STATE_CONFIGURED) ||
+ (xudc->gadget.speed != USB_SPEED_SUPER))
+ return -EINVAL;
+
+ val = xudc_readl(xudc, PORTPM);
+ if ((feature == USB_DEVICE_U1_ENABLE) &&
+ xudc->soc->u1_enable) {
+ if (set)
+ val |= PORTPM_U1E;
+ else
+ val &= ~PORTPM_U1E;
+ }
+
+ if ((feature == USB_DEVICE_U2_ENABLE) &&
+ xudc->soc->u2_enable) {
+ if (set)
+ val |= PORTPM_U2E;
+ else
+ val &= ~PORTPM_U2E;
+ }
+
+ xudc_writel(xudc, val, PORTPM);
+ break;
+ case USB_DEVICE_TEST_MODE:
+ if (xudc->gadget.speed != USB_SPEED_HIGH)
+ return -EINVAL;
+
+ if (!set)
+ return -EINVAL;
+
+ xudc->test_mode_pattern = index >> 8;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ break;
+ case USB_RECIP_INTERFACE:
+ if (xudc->device_state != USB_STATE_CONFIGURED)
+ return -EINVAL;
+
+ switch (feature) {
+ case USB_INTRF_FUNC_SUSPEND:
+ if (set) {
+ val = xudc_readl(xudc, PORTPM);
+
+ if (index & USB_INTRF_FUNC_SUSPEND_RW)
+ val |= PORTPM_FRWE;
+ else
+ val &= ~PORTPM_FRWE;
+
+ xudc_writel(xudc, val, PORTPM);
+ }
+
+ return tegra_xudc_ep0_delegate_req(xudc, ctrl);
+ default:
+ return -EINVAL;
+ }
+
+ break;
+ case USB_RECIP_ENDPOINT:
+ ep = (index & USB_ENDPOINT_NUMBER_MASK) * 2 +
+ ((index & USB_DIR_IN) ? 1 : 0);
+
+ if ((xudc->device_state == USB_STATE_DEFAULT) ||
+ ((xudc->device_state == USB_STATE_ADDRESS) &&
+ (index != 0)))
+ return -EINVAL;
+
+ ret = __tegra_xudc_ep_set_halt(&xudc->ep[ep], set);
+ if (ret < 0)
+ return ret;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return tegra_xudc_ep0_queue_status(xudc, set_feature_complete);
+}
+
+static int tegra_xudc_ep0_get_status(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl)
+{
+ struct tegra_xudc_ep_context *ep_ctx;
+ u32 val, ep, index = le16_to_cpu(ctrl->wIndex);
+ u16 status = 0;
+
+ if (!(ctrl->bRequestType & USB_DIR_IN))
+ return -EINVAL;
+
+ if ((le16_to_cpu(ctrl->wValue) != 0) ||
+ (le16_to_cpu(ctrl->wLength) != 2))
+ return -EINVAL;
+
+ switch (ctrl->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_DEVICE:
+ val = xudc_readl(xudc, PORTPM);
+
+ if (xudc->selfpowered)
+ status |= BIT(USB_DEVICE_SELF_POWERED);
+
+ if ((xudc->gadget.speed < USB_SPEED_SUPER) &&
+ (val & PORTPM_RWE))
+ status |= BIT(USB_DEVICE_REMOTE_WAKEUP);
+
+ if (xudc->gadget.speed == USB_SPEED_SUPER) {
+ if (val & PORTPM_U1E)
+ status |= BIT(USB_DEV_STAT_U1_ENABLED);
+ if (val & PORTPM_U2E)
+ status |= BIT(USB_DEV_STAT_U2_ENABLED);
+ }
+ break;
+ case USB_RECIP_INTERFACE:
+ if (xudc->gadget.speed == USB_SPEED_SUPER) {
+ status |= USB_INTRF_STAT_FUNC_RW_CAP;
+ val = xudc_readl(xudc, PORTPM);
+ if (val & PORTPM_FRWE)
+ status |= USB_INTRF_STAT_FUNC_RW;
+ }
+ break;
+ case USB_RECIP_ENDPOINT:
+ ep = (index & USB_ENDPOINT_NUMBER_MASK) * 2 +
+ ((index & USB_DIR_IN) ? 1 : 0);
+ ep_ctx = &xudc->ep_context[ep];
+
+ if ((xudc->device_state != USB_STATE_CONFIGURED) &&
+ ((xudc->device_state != USB_STATE_ADDRESS) || (ep != 0)))
+ return -EINVAL;
+
+ if (ep_ctx_read_state(ep_ctx) == EP_STATE_DISABLED)
+ return -EINVAL;
+
+ if (xudc_readl(xudc, EP_HALT) & BIT(ep))
+ status |= BIT(USB_ENDPOINT_HALT);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ xudc->status_buf = cpu_to_le16(status);
+ return tegra_xudc_ep0_queue_data(xudc, &xudc->status_buf,
+ sizeof(xudc->status_buf),
+ no_op_complete);
+}
+
+static void set_sel_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ /* Nothing to do with SEL values */
+}
+
+static int tegra_xudc_ep0_set_sel(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl)
+{
+ if (ctrl->bRequestType != (USB_DIR_OUT | USB_RECIP_DEVICE |
+ USB_TYPE_STANDARD))
+ return -EINVAL;
+
+ if (xudc->device_state == USB_STATE_DEFAULT)
+ return -EINVAL;
+
+ if ((le16_to_cpu(ctrl->wIndex) != 0) ||
+ (le16_to_cpu(ctrl->wValue) != 0) ||
+ (le16_to_cpu(ctrl->wLength) != 6))
+ return -EINVAL;
+
+ return tegra_xudc_ep0_queue_data(xudc, &xudc->sel_timing,
+ sizeof(xudc->sel_timing),
+ set_sel_complete);
+}
+
+static void set_isoch_delay_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ /* Nothing to do with isoch delay */
+}
+
+static int tegra_xudc_ep0_set_isoch_delay(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl)
+{
+ u32 delay = le16_to_cpu(ctrl->wValue);
+
+ if (ctrl->bRequestType != (USB_DIR_OUT | USB_RECIP_DEVICE |
+ USB_TYPE_STANDARD))
+ return -EINVAL;
+
+ if ((delay > 65535) || (le16_to_cpu(ctrl->wIndex) != 0) ||
+ (le16_to_cpu(ctrl->wLength) != 0))
+ return -EINVAL;
+
+ xudc->isoch_delay = delay;
+
+ return tegra_xudc_ep0_queue_status(xudc, set_isoch_delay_complete);
+}
+
+static void set_address_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct tegra_xudc *xudc = req->context;
+
+ if ((xudc->device_state == USB_STATE_DEFAULT) &&
+ (xudc->dev_addr != 0)) {
+ xudc->device_state = USB_STATE_ADDRESS;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+ } else if ((xudc->device_state == USB_STATE_ADDRESS) &&
+ (xudc->dev_addr == 0)) {
+ xudc->device_state = USB_STATE_DEFAULT;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+ }
+}
+
+static int tegra_xudc_ep0_set_address(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl)
+{
+ struct tegra_xudc_ep *ep0 = &xudc->ep[0];
+ u32 val, addr = le16_to_cpu(ctrl->wValue);
+
+ if (ctrl->bRequestType != (USB_DIR_OUT | USB_RECIP_DEVICE |
+ USB_TYPE_STANDARD))
+ return -EINVAL;
+
+ if ((addr > 127) || (le16_to_cpu(ctrl->wIndex) != 0) ||
+ (le16_to_cpu(ctrl->wLength) != 0))
+ return -EINVAL;
+
+ if (xudc->device_state == USB_STATE_CONFIGURED)
+ return -EINVAL;
+
+ dev_dbg(xudc->dev, "set address: %u\n", addr);
+
+ xudc->dev_addr = addr;
+ val = xudc_readl(xudc, CTRL);
+ val &= ~(CTRL_DEVADDR_MASK);
+ val |= CTRL_DEVADDR(addr);
+ xudc_writel(xudc, val, CTRL);
+
+ ep_ctx_write_devaddr(ep0->context, addr);
+
+ return tegra_xudc_ep0_queue_status(xudc, set_address_complete);
+}
+
+static int tegra_xudc_ep0_standard_req(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl)
+{
+ int ret;
+
+ switch (ctrl->bRequest) {
+ case USB_REQ_GET_STATUS:
+ dev_dbg(xudc->dev, "USB_REQ_GET_STATUS\n");
+ ret = tegra_xudc_ep0_get_status(xudc, ctrl);
+ break;
+ case USB_REQ_SET_ADDRESS:
+ dev_dbg(xudc->dev, "USB_REQ_SET_ADDRESS\n");
+ ret = tegra_xudc_ep0_set_address(xudc, ctrl);
+ break;
+ case USB_REQ_SET_SEL:
+ dev_dbg(xudc->dev, "USB_REQ_SET_SEL\n");
+ ret = tegra_xudc_ep0_set_sel(xudc, ctrl);
+ break;
+ case USB_REQ_SET_ISOCH_DELAY:
+ dev_dbg(xudc->dev, "USB_REQ_SET_ISOCH_DELAY\n");
+ ret = tegra_xudc_ep0_set_isoch_delay(xudc, ctrl);
+ break;
+ case USB_REQ_CLEAR_FEATURE:
+ case USB_REQ_SET_FEATURE:
+ dev_dbg(xudc->dev, "USB_REQ_CLEAR/SET_FEATURE\n");
+ ret = tegra_xudc_ep0_set_feature(xudc, ctrl);
+ break;
+ case USB_REQ_SET_CONFIGURATION:
+ dev_dbg(xudc->dev, "USB_REQ_SET_CONFIGURATION\n");
+ /*
+ * In theory we need to clear RUN bit before status stage of
+ * deconfig request sent, but this seems to be causing problems.
+ * Clear RUN once all endpoints are disabled instead.
+ */
+ fallthrough;
+ default:
+ ret = tegra_xudc_ep0_delegate_req(xudc, ctrl);
+ break;
+ }
+
+ return ret;
+}
+
+static void tegra_xudc_handle_ep0_setup_packet(struct tegra_xudc *xudc,
+ struct usb_ctrlrequest *ctrl,
+ u16 seq_num)
+{
+ int ret;
+
+ xudc->setup_seq_num = seq_num;
+
+ /* Ensure EP0 is unhalted. */
+ ep_unhalt(xudc, 0);
+
+ /*
+ * On Tegra210, setup packets with sequence numbers 0xfffe or 0xffff
+ * are invalid. Halt EP0 until we get a valid packet.
+ */
+ if (xudc->soc->invalid_seq_num &&
+ (seq_num == 0xfffe || seq_num == 0xffff)) {
+ dev_warn(xudc->dev, "invalid sequence number detected\n");
+ ep_halt(xudc, 0);
+ return;
+ }
+
+ if (ctrl->wLength)
+ xudc->setup_state = (ctrl->bRequestType & USB_DIR_IN) ?
+ DATA_STAGE_XFER : DATA_STAGE_RECV;
+ else
+ xudc->setup_state = STATUS_STAGE_XFER;
+
+ if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
+ ret = tegra_xudc_ep0_standard_req(xudc, ctrl);
+ else
+ ret = tegra_xudc_ep0_delegate_req(xudc, ctrl);
+
+ if (ret < 0) {
+ dev_warn(xudc->dev, "setup request failed: %d\n", ret);
+ xudc->setup_state = WAIT_FOR_SETUP;
+ ep_halt(xudc, 0);
+ }
+}
+
+static void tegra_xudc_handle_ep0_event(struct tegra_xudc *xudc,
+ struct tegra_xudc_trb *event)
+{
+ struct usb_ctrlrequest *ctrl = (struct usb_ctrlrequest *)event;
+ u16 seq_num = trb_read_seq_num(event);
+
+ if (xudc->setup_state != WAIT_FOR_SETUP) {
+ /*
+ * The controller is in the process of handling another
+ * setup request. Queue subsequent requests and handle
+ * the last one once the controller reports a sequence
+ * number error.
+ */
+ memcpy(&xudc->setup_packet.ctrl_req, ctrl, sizeof(*ctrl));
+ xudc->setup_packet.seq_num = seq_num;
+ xudc->queued_setup_packet = true;
+ } else {
+ tegra_xudc_handle_ep0_setup_packet(xudc, ctrl, seq_num);
+ }
+}
+
+static struct tegra_xudc_request *
+trb_to_request(struct tegra_xudc_ep *ep, struct tegra_xudc_trb *trb)
+{
+ struct tegra_xudc_request *req;
+
+ list_for_each_entry(req, &ep->queue, list) {
+ if (!req->trbs_queued)
+ break;
+
+ if (trb_in_request(ep, req, trb))
+ return req;
+ }
+
+ return NULL;
+}
+
+static void tegra_xudc_handle_transfer_completion(struct tegra_xudc *xudc,
+ struct tegra_xudc_ep *ep,
+ struct tegra_xudc_trb *event)
+{
+ struct tegra_xudc_request *req;
+ struct tegra_xudc_trb *trb;
+ bool short_packet;
+
+ short_packet = (trb_read_cmpl_code(event) ==
+ TRB_CMPL_CODE_SHORT_PACKET);
+
+ trb = trb_phys_to_virt(ep, trb_read_data_ptr(event));
+ req = trb_to_request(ep, trb);
+
+ /*
+ * TDs are complete on short packet or when the completed TRB is the
+ * last TRB in the TD (the CHAIN bit is unset).
+ */
+ if (req && (short_packet || (!trb_read_chain(trb) &&
+ (req->trbs_needed == req->trbs_queued)))) {
+ struct tegra_xudc_trb *last = req->last_trb;
+ unsigned int residual;
+
+ residual = trb_read_transfer_len(event);
+ req->usb_req.actual = req->usb_req.length - residual;
+
+ dev_dbg(xudc->dev, "bytes transferred %u / %u\n",
+ req->usb_req.actual, req->usb_req.length);
+
+ tegra_xudc_req_done(ep, req, 0);
+
+ if (ep->desc && usb_endpoint_xfer_control(ep->desc))
+ tegra_xudc_ep0_req_done(xudc);
+
+ /*
+ * Advance the dequeue pointer past the end of the current TD
+ * on short packet completion.
+ */
+ if (short_packet) {
+ ep->deq_ptr = (last - ep->transfer_ring) + 1;
+ if (ep->deq_ptr == XUDC_TRANSFER_RING_SIZE - 1)
+ ep->deq_ptr = 0;
+ }
+ } else if (!req) {
+ dev_warn(xudc->dev, "transfer event on dequeued request\n");
+ }
+
+ if (ep->desc)
+ tegra_xudc_ep_kick_queue(ep);
+}
+
+static void tegra_xudc_handle_transfer_event(struct tegra_xudc *xudc,
+ struct tegra_xudc_trb *event)
+{
+ unsigned int ep_index = trb_read_endpoint_id(event);
+ struct tegra_xudc_ep *ep = &xudc->ep[ep_index];
+ struct tegra_xudc_trb *trb;
+ u16 comp_code;
+
+ if (ep_ctx_read_state(ep->context) == EP_STATE_DISABLED) {
+ dev_warn(xudc->dev, "transfer event on disabled EP %u\n",
+ ep_index);
+ return;
+ }
+
+ /* Update transfer ring dequeue pointer. */
+ trb = trb_phys_to_virt(ep, trb_read_data_ptr(event));
+ comp_code = trb_read_cmpl_code(event);
+ if (comp_code != TRB_CMPL_CODE_BABBLE_DETECTED_ERR) {
+ ep->deq_ptr = (trb - ep->transfer_ring) + 1;
+
+ if (ep->deq_ptr == XUDC_TRANSFER_RING_SIZE - 1)
+ ep->deq_ptr = 0;
+ ep->ring_full = false;
+ }
+
+ switch (comp_code) {
+ case TRB_CMPL_CODE_SUCCESS:
+ case TRB_CMPL_CODE_SHORT_PACKET:
+ tegra_xudc_handle_transfer_completion(xudc, ep, event);
+ break;
+ case TRB_CMPL_CODE_HOST_REJECTED:
+ dev_info(xudc->dev, "stream rejected on EP %u\n", ep_index);
+
+ ep->stream_rejected = true;
+ break;
+ case TRB_CMPL_CODE_PRIME_PIPE_RECEIVED:
+ dev_info(xudc->dev, "prime pipe received on EP %u\n", ep_index);
+
+ if (ep->stream_rejected) {
+ ep->stream_rejected = false;
+ /*
+ * An EP is stopped when a stream is rejected. Wait
+ * for the EP to report that it is stopped and then
+ * un-stop it.
+ */
+ ep_wait_for_stopped(xudc, ep_index);
+ }
+ tegra_xudc_ep_ring_doorbell(ep);
+ break;
+ case TRB_CMPL_CODE_BABBLE_DETECTED_ERR:
+ /*
+ * Wait for the EP to be stopped so the controller stops
+ * processing doorbells.
+ */
+ ep_wait_for_stopped(xudc, ep_index);
+ ep->enq_ptr = ep->deq_ptr;
+ tegra_xudc_ep_nuke(ep, -EIO);
+ /* FALLTHROUGH */
+ case TRB_CMPL_CODE_STREAM_NUMP_ERROR:
+ case TRB_CMPL_CODE_CTRL_DIR_ERR:
+ case TRB_CMPL_CODE_INVALID_STREAM_TYPE_ERR:
+ case TRB_CMPL_CODE_RING_UNDERRUN:
+ case TRB_CMPL_CODE_RING_OVERRUN:
+ case TRB_CMPL_CODE_ISOCH_BUFFER_OVERRUN:
+ case TRB_CMPL_CODE_USB_TRANS_ERR:
+ case TRB_CMPL_CODE_TRB_ERR:
+ dev_err(xudc->dev, "completion error %#x on EP %u\n",
+ comp_code, ep_index);
+
+ ep_halt(xudc, ep_index);
+ break;
+ case TRB_CMPL_CODE_CTRL_SEQNUM_ERR:
+ dev_info(xudc->dev, "sequence number error\n");
+
+ /*
+ * Kill any queued control request and skip to the last
+ * setup packet we received.
+ */
+ tegra_xudc_ep_nuke(ep, -EINVAL);
+ xudc->setup_state = WAIT_FOR_SETUP;
+ if (!xudc->queued_setup_packet)
+ break;
+
+ tegra_xudc_handle_ep0_setup_packet(xudc,
+ &xudc->setup_packet.ctrl_req,
+ xudc->setup_packet.seq_num);
+ xudc->queued_setup_packet = false;
+ break;
+ case TRB_CMPL_CODE_STOPPED:
+ dev_dbg(xudc->dev, "stop completion code on EP %u\n",
+ ep_index);
+
+ /* Disconnected. */
+ tegra_xudc_ep_nuke(ep, -ECONNREFUSED);
+ break;
+ default:
+ dev_dbg(xudc->dev, "completion event %#x on EP %u\n",
+ comp_code, ep_index);
+ break;
+ }
+}
+
+static void tegra_xudc_reset(struct tegra_xudc *xudc)
+{
+ struct tegra_xudc_ep *ep0 = &xudc->ep[0];
+ dma_addr_t deq_ptr;
+ unsigned int i;
+
+ xudc->setup_state = WAIT_FOR_SETUP;
+ xudc->device_state = USB_STATE_DEFAULT;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+
+ ep_unpause_all(xudc);
+
+ for (i = 0; i < ARRAY_SIZE(xudc->ep); i++)
+ tegra_xudc_ep_nuke(&xudc->ep[i], -ESHUTDOWN);
+
+ /*
+ * Reset sequence number and dequeue pointer to flush the transfer
+ * ring.
+ */
+ ep0->deq_ptr = ep0->enq_ptr;
+ ep0->ring_full = false;
+
+ xudc->setup_seq_num = 0;
+ xudc->queued_setup_packet = false;
+
+ ep_ctx_write_seq_num(ep0->context, xudc->setup_seq_num);
+
+ deq_ptr = trb_virt_to_phys(ep0, &ep0->transfer_ring[ep0->deq_ptr]);
+
+ if (!dma_mapping_error(xudc->dev, deq_ptr)) {
+ ep_ctx_write_deq_ptr(ep0->context, deq_ptr);
+ ep_ctx_write_dcs(ep0->context, ep0->pcs);
+ }
+
+ ep_unhalt_all(xudc);
+ ep_reload(xudc, 0);
+ ep_unpause(xudc, 0);
+}
+
+static void tegra_xudc_port_connect(struct tegra_xudc *xudc)
+{
+ struct tegra_xudc_ep *ep0 = &xudc->ep[0];
+ u16 maxpacket;
+ u32 val;
+
+ val = (xudc_readl(xudc, PORTSC) & PORTSC_PS_MASK) >> PORTSC_PS_SHIFT;
+ switch (val) {
+ case PORTSC_PS_LS:
+ xudc->gadget.speed = USB_SPEED_LOW;
+ break;
+ case PORTSC_PS_FS:
+ xudc->gadget.speed = USB_SPEED_FULL;
+ break;
+ case PORTSC_PS_HS:
+ xudc->gadget.speed = USB_SPEED_HIGH;
+ break;
+ case PORTSC_PS_SS:
+ xudc->gadget.speed = USB_SPEED_SUPER;
+ break;
+ default:
+ xudc->gadget.speed = USB_SPEED_UNKNOWN;
+ break;
+ }
+
+ xudc->device_state = USB_STATE_DEFAULT;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+
+ xudc->setup_state = WAIT_FOR_SETUP;
+
+ if (xudc->gadget.speed == USB_SPEED_SUPER)
+ maxpacket = 512;
+ else
+ maxpacket = 64;
+
+ ep_ctx_write_max_packet_size(ep0->context, maxpacket);
+ tegra_xudc_ep0_desc.wMaxPacketSize = cpu_to_le16(maxpacket);
+ usb_ep_set_maxpacket_limit(&ep0->usb_ep, maxpacket);
+
+ if (!xudc->soc->u1_enable) {
+ val = xudc_readl(xudc, PORTPM);
+ val &= ~(PORTPM_U1TIMEOUT_MASK);
+ xudc_writel(xudc, val, PORTPM);
+ }
+
+ if (!xudc->soc->u2_enable) {
+ val = xudc_readl(xudc, PORTPM);
+ val &= ~(PORTPM_U2TIMEOUT_MASK);
+ xudc_writel(xudc, val, PORTPM);
+ }
+
+ if (xudc->gadget.speed <= USB_SPEED_HIGH) {
+ val = xudc_readl(xudc, PORTPM);
+ val &= ~(PORTPM_L1S_MASK);
+ if (xudc->soc->lpm_enable)
+ val |= PORTPM_L1S(PORTPM_L1S_ACCEPT);
+ else
+ val |= PORTPM_L1S(PORTPM_L1S_NYET);
+ xudc_writel(xudc, val, PORTPM);
+ }
+
+ val = xudc_readl(xudc, ST);
+ if (val & ST_RC)
+ xudc_writel(xudc, ST_RC, ST);
+}
+
+static void tegra_xudc_port_disconnect(struct tegra_xudc *xudc)
+{
+ tegra_xudc_reset(xudc);
+
+ if (xudc->driver && xudc->driver->disconnect) {
+ spin_unlock(&xudc->lock);
+ xudc->driver->disconnect(&xudc->gadget);
+ spin_lock(&xudc->lock);
+ }
+
+ xudc->device_state = USB_STATE_NOTATTACHED;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+
+ complete(&xudc->disconnect_complete);
+}
+
+static void tegra_xudc_port_reset(struct tegra_xudc *xudc)
+{
+ tegra_xudc_reset(xudc);
+
+ if (xudc->driver) {
+ spin_unlock(&xudc->lock);
+ usb_gadget_udc_reset(&xudc->gadget, xudc->driver);
+ spin_lock(&xudc->lock);
+ }
+
+ tegra_xudc_port_connect(xudc);
+}
+
+static void tegra_xudc_port_suspend(struct tegra_xudc *xudc)
+{
+ dev_dbg(xudc->dev, "port suspend\n");
+
+ xudc->resume_state = xudc->device_state;
+ xudc->device_state = USB_STATE_SUSPENDED;
+ usb_gadget_set_state(&xudc->gadget, xudc->device_state);
+
+ if (xudc->driver->suspend) {
+ spin_unlock(&xudc->lock);
+ xudc->driver->suspend(&xudc->gadget);
+ spin_lock(&xudc->lock);
+ }
+}
+
+static void tegra_xudc_port_resume(struct tegra_xudc *xudc)
+{
+ dev_dbg(xudc->dev, "port resume\n");
+
+ tegra_xudc_resume_device_state(xudc);
+
+ if (xudc->driver->resume) {
+ spin_unlock(&xudc->lock);
+ xudc->driver->resume(&xudc->gadget);
+ spin_lock(&xudc->lock);
+ }
+}
+
+static inline void clear_port_change(struct tegra_xudc *xudc, u32 flag)
+{
+ u32 val;
+
+ val = xudc_readl(xudc, PORTSC);
+ val &= ~PORTSC_CHANGE_MASK;
+ val |= flag;
+ xudc_writel(xudc, val, PORTSC);
+}
+
+static void __tegra_xudc_handle_port_status(struct tegra_xudc *xudc)
+{
+ u32 portsc, porthalt;
+
+ porthalt = xudc_readl(xudc, PORTHALT);
+ if ((porthalt & PORTHALT_STCHG_REQ) &&
+ (porthalt & PORTHALT_HALT_LTSSM)) {
+ dev_dbg(xudc->dev, "STCHG_REQ, PORTHALT = %#x\n", porthalt);
+ porthalt &= ~PORTHALT_HALT_LTSSM;
+ xudc_writel(xudc, porthalt, PORTHALT);
+ }
+
+ portsc = xudc_readl(xudc, PORTSC);
+ if ((portsc & PORTSC_PRC) && (portsc & PORTSC_PR)) {
+ dev_dbg(xudc->dev, "PRC, PR, PORTSC = %#x\n", portsc);
+ clear_port_change(xudc, PORTSC_PRC | PORTSC_PED);
+#define TOGGLE_VBUS_WAIT_MS 100
+ if (xudc->soc->port_reset_quirk) {
+ schedule_delayed_work(&xudc->port_reset_war_work,
+ msecs_to_jiffies(TOGGLE_VBUS_WAIT_MS));
+ xudc->wait_for_sec_prc = 1;
+ }
+ }
+
+ if ((portsc & PORTSC_PRC) && !(portsc & PORTSC_PR)) {
+ dev_dbg(xudc->dev, "PRC, Not PR, PORTSC = %#x\n", portsc);
+ clear_port_change(xudc, PORTSC_PRC | PORTSC_PED);
+ tegra_xudc_port_reset(xudc);
+ cancel_delayed_work(&xudc->port_reset_war_work);
+ xudc->wait_for_sec_prc = 0;
+ }
+
+ portsc = xudc_readl(xudc, PORTSC);
+ if (portsc & PORTSC_WRC) {
+ dev_dbg(xudc->dev, "WRC, PORTSC = %#x\n", portsc);
+ clear_port_change(xudc, PORTSC_WRC | PORTSC_PED);
+ if (!(xudc_readl(xudc, PORTSC) & PORTSC_WPR))
+ tegra_xudc_port_reset(xudc);
+ }
+
+ portsc = xudc_readl(xudc, PORTSC);
+ if (portsc & PORTSC_CSC) {
+ dev_dbg(xudc->dev, "CSC, PORTSC = %#x\n", portsc);
+ clear_port_change(xudc, PORTSC_CSC);
+
+ if (portsc & PORTSC_CCS)
+ tegra_xudc_port_connect(xudc);
+ else
+ tegra_xudc_port_disconnect(xudc);
+
+ if (xudc->wait_csc) {
+ cancel_delayed_work(&xudc->plc_reset_work);
+ xudc->wait_csc = false;
+ }
+ }
+
+ portsc = xudc_readl(xudc, PORTSC);
+ if (portsc & PORTSC_PLC) {
+ u32 pls = (portsc & PORTSC_PLS_MASK) >> PORTSC_PLS_SHIFT;
+
+ dev_dbg(xudc->dev, "PLC, PORTSC = %#x\n", portsc);
+ clear_port_change(xudc, PORTSC_PLC);
+ switch (pls) {
+ case PORTSC_PLS_U3:
+ tegra_xudc_port_suspend(xudc);
+ break;
+ case PORTSC_PLS_U0:
+ if (xudc->gadget.speed < USB_SPEED_SUPER)
+ tegra_xudc_port_resume(xudc);
+ break;
+ case PORTSC_PLS_RESUME:
+ if (xudc->gadget.speed == USB_SPEED_SUPER)
+ tegra_xudc_port_resume(xudc);
+ break;
+ case PORTSC_PLS_INACTIVE:
+ schedule_delayed_work(&xudc->plc_reset_work,
+ msecs_to_jiffies(TOGGLE_VBUS_WAIT_MS));
+ xudc->wait_csc = true;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (portsc & PORTSC_CEC) {
+ dev_warn(xudc->dev, "CEC, PORTSC = %#x\n", portsc);
+ clear_port_change(xudc, PORTSC_CEC);
+ }
+
+ dev_dbg(xudc->dev, "PORTSC = %#x\n", xudc_readl(xudc, PORTSC));
+}
+
+static void tegra_xudc_handle_port_status(struct tegra_xudc *xudc)
+{
+ while ((xudc_readl(xudc, PORTSC) & PORTSC_CHANGE_MASK) ||
+ (xudc_readl(xudc, PORTHALT) & PORTHALT_STCHG_REQ))
+ __tegra_xudc_handle_port_status(xudc);
+}
+
+static void tegra_xudc_handle_event(struct tegra_xudc *xudc,
+ struct tegra_xudc_trb *event)
+{
+ u32 type = trb_read_type(event);
+
+ dump_trb(xudc, "EVENT", event);
+
+ switch (type) {
+ case TRB_TYPE_PORT_STATUS_CHANGE_EVENT:
+ tegra_xudc_handle_port_status(xudc);
+ break;
+ case TRB_TYPE_TRANSFER_EVENT:
+ tegra_xudc_handle_transfer_event(xudc, event);
+ break;
+ case TRB_TYPE_SETUP_PACKET_EVENT:
+ tegra_xudc_handle_ep0_event(xudc, event);
+ break;
+ default:
+ dev_info(xudc->dev, "Unrecognized TRB type = %#x\n", type);
+ break;
+ }
+}
+
+static void tegra_xudc_process_event_ring(struct tegra_xudc *xudc)
+{
+ struct tegra_xudc_trb *event;
+ dma_addr_t erdp;
+
+ while (true) {
+ event = xudc->event_ring[xudc->event_ring_index] +
+ xudc->event_ring_deq_ptr;
+
+ if (trb_read_cycle(event) != xudc->ccs)
+ break;
+
+ tegra_xudc_handle_event(xudc, event);
+
+ xudc->event_ring_deq_ptr++;
+ if (xudc->event_ring_deq_ptr == XUDC_EVENT_RING_SIZE) {
+ xudc->event_ring_deq_ptr = 0;
+ xudc->event_ring_index++;
+ }
+
+ if (xudc->event_ring_index == XUDC_NR_EVENT_RINGS) {
+ xudc->event_ring_index = 0;
+ xudc->ccs = !xudc->ccs;
+ }
+ }
+
+ erdp = xudc->event_ring_phys[xudc->event_ring_index] +
+ xudc->event_ring_deq_ptr * sizeof(*event);
+
+ xudc_writel(xudc, upper_32_bits(erdp), ERDPHI);
+ xudc_writel(xudc, lower_32_bits(erdp) | ERDPLO_EHB, ERDPLO);
+}
+
+static irqreturn_t tegra_xudc_irq(int irq, void *data)
+{
+ struct tegra_xudc *xudc = data;
+ unsigned long flags;
+ u32 val;
+
+ val = xudc_readl(xudc, ST);
+ if (!(val & ST_IP))
+ return IRQ_NONE;
+ xudc_writel(xudc, ST_IP, ST);
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ tegra_xudc_process_event_ring(xudc);
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static int tegra_xudc_alloc_ep(struct tegra_xudc *xudc, unsigned int index)
+{
+ struct tegra_xudc_ep *ep = &xudc->ep[index];
+
+ ep->xudc = xudc;
+ ep->index = index;
+ ep->context = &xudc->ep_context[index];
+ INIT_LIST_HEAD(&ep->queue);
+
+ /*
+ * EP1 would be the input endpoint corresponding to EP0, but since
+ * EP0 is bi-directional, EP1 is unused.
+ */
+ if (index == 1)
+ return 0;
+
+ ep->transfer_ring = dma_pool_alloc(xudc->transfer_ring_pool,
+ GFP_KERNEL,
+ &ep->transfer_ring_phys);
+ if (!ep->transfer_ring)
+ return -ENOMEM;
+
+ if (index) {
+ snprintf(ep->name, sizeof(ep->name), "ep%u%s", index / 2,
+ (index % 2 == 0) ? "out" : "in");
+ ep->usb_ep.name = ep->name;
+ usb_ep_set_maxpacket_limit(&ep->usb_ep, 1024);
+ ep->usb_ep.max_streams = 16;
+ ep->usb_ep.ops = &tegra_xudc_ep_ops;
+ ep->usb_ep.caps.type_bulk = true;
+ ep->usb_ep.caps.type_int = true;
+ if (index & 1)
+ ep->usb_ep.caps.dir_in = true;
+ else
+ ep->usb_ep.caps.dir_out = true;
+ list_add_tail(&ep->usb_ep.ep_list, &xudc->gadget.ep_list);
+ } else {
+ strscpy(ep->name, "ep0", 3);
+ ep->usb_ep.name = ep->name;
+ usb_ep_set_maxpacket_limit(&ep->usb_ep, 512);
+ ep->usb_ep.ops = &tegra_xudc_ep0_ops;
+ ep->usb_ep.caps.type_control = true;
+ ep->usb_ep.caps.dir_in = true;
+ ep->usb_ep.caps.dir_out = true;
+ }
+
+ return 0;
+}
+
+static void tegra_xudc_free_ep(struct tegra_xudc *xudc, unsigned int index)
+{
+ struct tegra_xudc_ep *ep = &xudc->ep[index];
+
+ /*
+ * EP1 would be the input endpoint corresponding to EP0, but since
+ * EP0 is bi-directional, EP1 is unused.
+ */
+ if (index == 1)
+ return;
+
+ dma_pool_free(xudc->transfer_ring_pool, ep->transfer_ring,
+ ep->transfer_ring_phys);
+}
+
+static int tegra_xudc_alloc_eps(struct tegra_xudc *xudc)
+{
+ struct usb_request *req;
+ unsigned int i;
+ int err;
+
+ xudc->ep_context =
+ dma_alloc_coherent(xudc->dev, XUDC_NR_EPS *
+ sizeof(*xudc->ep_context),
+ &xudc->ep_context_phys, GFP_KERNEL);
+ if (!xudc->ep_context)
+ return -ENOMEM;
+
+ xudc->transfer_ring_pool =
+ dmam_pool_create(dev_name(xudc->dev), xudc->dev,
+ XUDC_TRANSFER_RING_SIZE *
+ sizeof(struct tegra_xudc_trb),
+ sizeof(struct tegra_xudc_trb), 0);
+ if (!xudc->transfer_ring_pool) {
+ err = -ENOMEM;
+ goto free_ep_context;
+ }
+
+ INIT_LIST_HEAD(&xudc->gadget.ep_list);
+ for (i = 0; i < ARRAY_SIZE(xudc->ep); i++) {
+ err = tegra_xudc_alloc_ep(xudc, i);
+ if (err < 0)
+ goto free_eps;
+ }
+
+ req = tegra_xudc_ep_alloc_request(&xudc->ep[0].usb_ep, GFP_KERNEL);
+ if (!req) {
+ err = -ENOMEM;
+ goto free_eps;
+ }
+ xudc->ep0_req = to_xudc_req(req);
+
+ return 0;
+
+free_eps:
+ for (; i > 0; i--)
+ tegra_xudc_free_ep(xudc, i - 1);
+free_ep_context:
+ dma_free_coherent(xudc->dev, XUDC_NR_EPS * sizeof(*xudc->ep_context),
+ xudc->ep_context, xudc->ep_context_phys);
+ return err;
+}
+
+static void tegra_xudc_init_eps(struct tegra_xudc *xudc)
+{
+ xudc_writel(xudc, lower_32_bits(xudc->ep_context_phys), ECPLO);
+ xudc_writel(xudc, upper_32_bits(xudc->ep_context_phys), ECPHI);
+}
+
+static void tegra_xudc_free_eps(struct tegra_xudc *xudc)
+{
+ unsigned int i;
+
+ tegra_xudc_ep_free_request(&xudc->ep[0].usb_ep,
+ &xudc->ep0_req->usb_req);
+
+ for (i = 0; i < ARRAY_SIZE(xudc->ep); i++)
+ tegra_xudc_free_ep(xudc, i);
+
+ dma_free_coherent(xudc->dev, XUDC_NR_EPS * sizeof(*xudc->ep_context),
+ xudc->ep_context, xudc->ep_context_phys);
+}
+
+static int tegra_xudc_alloc_event_ring(struct tegra_xudc *xudc)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(xudc->event_ring); i++) {
+ xudc->event_ring[i] =
+ dma_alloc_coherent(xudc->dev, XUDC_EVENT_RING_SIZE *
+ sizeof(*xudc->event_ring[i]),
+ &xudc->event_ring_phys[i],
+ GFP_KERNEL);
+ if (!xudc->event_ring[i])
+ goto free_dma;
+ }
+
+ return 0;
+
+free_dma:
+ for (; i > 0; i--) {
+ dma_free_coherent(xudc->dev, XUDC_EVENT_RING_SIZE *
+ sizeof(*xudc->event_ring[i - 1]),
+ xudc->event_ring[i - 1],
+ xudc->event_ring_phys[i - 1]);
+ }
+ return -ENOMEM;
+}
+
+static void tegra_xudc_init_event_ring(struct tegra_xudc *xudc)
+{
+ unsigned int i;
+ u32 val;
+
+ val = xudc_readl(xudc, SPARAM);
+ val &= ~(SPARAM_ERSTMAX_MASK);
+ val |= SPARAM_ERSTMAX(XUDC_NR_EVENT_RINGS);
+ xudc_writel(xudc, val, SPARAM);
+
+ for (i = 0; i < ARRAY_SIZE(xudc->event_ring); i++) {
+ memset(xudc->event_ring[i], 0, XUDC_EVENT_RING_SIZE *
+ sizeof(*xudc->event_ring[i]));
+
+ val = xudc_readl(xudc, ERSTSZ);
+ val &= ~(ERSTSZ_ERSTXSZ_MASK << ERSTSZ_ERSTXSZ_SHIFT(i));
+ val |= XUDC_EVENT_RING_SIZE << ERSTSZ_ERSTXSZ_SHIFT(i);
+ xudc_writel(xudc, val, ERSTSZ);
+
+ xudc_writel(xudc, lower_32_bits(xudc->event_ring_phys[i]),
+ ERSTXBALO(i));
+ xudc_writel(xudc, upper_32_bits(xudc->event_ring_phys[i]),
+ ERSTXBAHI(i));
+ }
+
+ val = lower_32_bits(xudc->event_ring_phys[0]);
+ xudc_writel(xudc, val, ERDPLO);
+ val |= EREPLO_ECS;
+ xudc_writel(xudc, val, EREPLO);
+
+ val = upper_32_bits(xudc->event_ring_phys[0]);
+ xudc_writel(xudc, val, ERDPHI);
+ xudc_writel(xudc, val, EREPHI);
+
+ xudc->ccs = true;
+ xudc->event_ring_index = 0;
+ xudc->event_ring_deq_ptr = 0;
+}
+
+static void tegra_xudc_free_event_ring(struct tegra_xudc *xudc)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(xudc->event_ring); i++) {
+ dma_free_coherent(xudc->dev, XUDC_EVENT_RING_SIZE *
+ sizeof(*xudc->event_ring[i]),
+ xudc->event_ring[i],
+ xudc->event_ring_phys[i]);
+ }
+}
+
+static void tegra_xudc_fpci_ipfs_init(struct tegra_xudc *xudc)
+{
+ u32 val;
+
+ if (xudc->soc->has_ipfs) {
+ val = ipfs_readl(xudc, XUSB_DEV_CONFIGURATION_0);
+ val |= XUSB_DEV_CONFIGURATION_0_EN_FPCI;
+ ipfs_writel(xudc, val, XUSB_DEV_CONFIGURATION_0);
+ usleep_range(10, 15);
+ }
+
+ /* Enable bus master */
+ val = XUSB_DEV_CFG_1_IO_SPACE_EN | XUSB_DEV_CFG_1_MEMORY_SPACE_EN |
+ XUSB_DEV_CFG_1_BUS_MASTER_EN;
+ fpci_writel(xudc, val, XUSB_DEV_CFG_1);
+
+ /* Program BAR0 space */
+ val = fpci_readl(xudc, XUSB_DEV_CFG_4);
+ val &= ~(XUSB_DEV_CFG_4_BASE_ADDR_MASK);
+ val |= xudc->phys_base & (XUSB_DEV_CFG_4_BASE_ADDR_MASK);
+
+ fpci_writel(xudc, val, XUSB_DEV_CFG_4);
+ fpci_writel(xudc, upper_32_bits(xudc->phys_base), XUSB_DEV_CFG_5);
+
+ usleep_range(100, 200);
+
+ if (xudc->soc->has_ipfs) {
+ /* Enable interrupt assertion */
+ val = ipfs_readl(xudc, XUSB_DEV_INTR_MASK_0);
+ val |= XUSB_DEV_INTR_MASK_0_IP_INT_MASK;
+ ipfs_writel(xudc, val, XUSB_DEV_INTR_MASK_0);
+ }
+}
+
+static void tegra_xudc_device_params_init(struct tegra_xudc *xudc)
+{
+ u32 val, imod;
+
+ if (xudc->soc->has_ipfs) {
+ val = xudc_readl(xudc, BLCG);
+ val |= BLCG_ALL;
+ val &= ~(BLCG_DFPCI | BLCG_UFPCI | BLCG_FE |
+ BLCG_COREPLL_PWRDN);
+ val |= BLCG_IOPLL_0_PWRDN;
+ val |= BLCG_IOPLL_1_PWRDN;
+ val |= BLCG_IOPLL_2_PWRDN;
+
+ xudc_writel(xudc, val, BLCG);
+ }
+
+ /* Set a reasonable U3 exit timer value. */
+ val = xudc_readl(xudc, SSPX_CORE_PADCTL4);
+ val &= ~(SSPX_CORE_PADCTL4_RXDAT_VLD_TIMEOUT_U3_MASK);
+ val |= SSPX_CORE_PADCTL4_RXDAT_VLD_TIMEOUT_U3(0x5dc0);
+ xudc_writel(xudc, val, SSPX_CORE_PADCTL4);
+
+ /* Default ping LFPS tBurst is too large. */
+ val = xudc_readl(xudc, SSPX_CORE_CNT0);
+ val &= ~(SSPX_CORE_CNT0_PING_TBURST_MASK);
+ val |= SSPX_CORE_CNT0_PING_TBURST(0xa);
+ xudc_writel(xudc, val, SSPX_CORE_CNT0);
+
+ /* Default tPortConfiguration timeout is too small. */
+ val = xudc_readl(xudc, SSPX_CORE_CNT30);
+ val &= ~(SSPX_CORE_CNT30_LMPITP_TIMER_MASK);
+ val |= SSPX_CORE_CNT30_LMPITP_TIMER(0x978);
+ xudc_writel(xudc, val, SSPX_CORE_CNT30);
+
+ if (xudc->soc->lpm_enable) {
+ /* Set L1 resume duration to 95 us. */
+ val = xudc_readl(xudc, HSFSPI_COUNT13);
+ val &= ~(HSFSPI_COUNT13_U2_RESUME_K_DURATION_MASK);
+ val |= HSFSPI_COUNT13_U2_RESUME_K_DURATION(0x2c88);
+ xudc_writel(xudc, val, HSFSPI_COUNT13);
+ }
+
+ /*
+ * Compliacne suite appears to be violating polling LFPS tBurst max
+ * of 1.4us. Send 1.45us instead.
+ */
+ val = xudc_readl(xudc, SSPX_CORE_CNT32);
+ val &= ~(SSPX_CORE_CNT32_POLL_TBURST_MAX_MASK);
+ val |= SSPX_CORE_CNT32_POLL_TBURST_MAX(0xb0);
+ xudc_writel(xudc, val, SSPX_CORE_CNT32);
+
+ /* Direct HS/FS port instance to RxDetect. */
+ val = xudc_readl(xudc, CFG_DEV_FE);
+ val &= ~(CFG_DEV_FE_PORTREGSEL_MASK);
+ val |= CFG_DEV_FE_PORTREGSEL(CFG_DEV_FE_PORTREGSEL_HSFS_PI);
+ xudc_writel(xudc, val, CFG_DEV_FE);
+
+ val = xudc_readl(xudc, PORTSC);
+ val &= ~(PORTSC_CHANGE_MASK | PORTSC_PLS_MASK);
+ val |= PORTSC_LWS | PORTSC_PLS(PORTSC_PLS_RXDETECT);
+ xudc_writel(xudc, val, PORTSC);
+
+ /* Direct SS port instance to RxDetect. */
+ val = xudc_readl(xudc, CFG_DEV_FE);
+ val &= ~(CFG_DEV_FE_PORTREGSEL_MASK);
+ val |= CFG_DEV_FE_PORTREGSEL_SS_PI & CFG_DEV_FE_PORTREGSEL_MASK;
+ xudc_writel(xudc, val, CFG_DEV_FE);
+
+ val = xudc_readl(xudc, PORTSC);
+ val &= ~(PORTSC_CHANGE_MASK | PORTSC_PLS_MASK);
+ val |= PORTSC_LWS | PORTSC_PLS(PORTSC_PLS_RXDETECT);
+ xudc_writel(xudc, val, PORTSC);
+
+ /* Restore port instance. */
+ val = xudc_readl(xudc, CFG_DEV_FE);
+ val &= ~(CFG_DEV_FE_PORTREGSEL_MASK);
+ xudc_writel(xudc, val, CFG_DEV_FE);
+
+ /*
+ * Enable INFINITE_SS_RETRY to prevent device from entering
+ * Disabled.Error when attached to buggy SuperSpeed hubs.
+ */
+ val = xudc_readl(xudc, CFG_DEV_FE);
+ val |= CFG_DEV_FE_INFINITE_SS_RETRY;
+ xudc_writel(xudc, val, CFG_DEV_FE);
+
+ /* Set interrupt moderation. */
+ imod = XUDC_INTERRUPT_MODERATION_US * 4;
+ val = xudc_readl(xudc, RT_IMOD);
+ val &= ~((RT_IMOD_IMODI_MASK) | (RT_IMOD_IMODC_MASK));
+ val |= (RT_IMOD_IMODI(imod) | RT_IMOD_IMODC(imod));
+ xudc_writel(xudc, val, RT_IMOD);
+
+ /* increase SSPI transaction timeout from 32us to 512us */
+ val = xudc_readl(xudc, CFG_DEV_SSPI_XFER);
+ val &= ~(CFG_DEV_SSPI_XFER_ACKTIMEOUT_MASK);
+ val |= CFG_DEV_SSPI_XFER_ACKTIMEOUT(0xf000);
+ xudc_writel(xudc, val, CFG_DEV_SSPI_XFER);
+}
+
+static int tegra_xudc_phy_init(struct tegra_xudc *xudc)
+{
+ int err;
+
+ err = phy_init(xudc->utmi_phy);
+ if (err < 0) {
+ dev_err(xudc->dev, "utmi phy init failed: %d\n", err);
+ return err;
+ }
+
+ err = phy_init(xudc->usb3_phy);
+ if (err < 0) {
+ dev_err(xudc->dev, "usb3 phy init failed: %d\n", err);
+ goto exit_utmi_phy;
+ }
+
+ return 0;
+
+exit_utmi_phy:
+ phy_exit(xudc->utmi_phy);
+ return err;
+}
+
+static void tegra_xudc_phy_exit(struct tegra_xudc *xudc)
+{
+ phy_exit(xudc->usb3_phy);
+ phy_exit(xudc->utmi_phy);
+}
+
+static const char * const tegra210_xudc_supply_names[] = {
+ "hvdd-usb",
+ "avddio-usb",
+};
+
+static const char * const tegra210_xudc_clock_names[] = {
+ "dev",
+ "ss",
+ "ss_src",
+ "hs_src",
+ "fs_src",
+};
+
+static const char * const tegra186_xudc_clock_names[] = {
+ "dev",
+ "ss",
+ "ss_src",
+ "fs_src",
+};
+
+static struct tegra_xudc_soc tegra210_xudc_soc_data = {
+ .supply_names = tegra210_xudc_supply_names,
+ .num_supplies = ARRAY_SIZE(tegra210_xudc_supply_names),
+ .clock_names = tegra210_xudc_clock_names,
+ .num_clks = ARRAY_SIZE(tegra210_xudc_clock_names),
+ .u1_enable = false,
+ .u2_enable = true,
+ .lpm_enable = false,
+ .invalid_seq_num = true,
+ .pls_quirk = true,
+ .port_reset_quirk = true,
+ .has_ipfs = true,
+};
+
+static struct tegra_xudc_soc tegra186_xudc_soc_data = {
+ .clock_names = tegra186_xudc_clock_names,
+ .num_clks = ARRAY_SIZE(tegra186_xudc_clock_names),
+ .u1_enable = true,
+ .u2_enable = true,
+ .lpm_enable = false,
+ .invalid_seq_num = false,
+ .pls_quirk = false,
+ .port_reset_quirk = false,
+ .has_ipfs = false,
+};
+
+static const struct of_device_id tegra_xudc_of_match[] = {
+ {
+ .compatible = "nvidia,tegra210-xudc",
+ .data = &tegra210_xudc_soc_data
+ },
+ {
+ .compatible = "nvidia,tegra186-xudc",
+ .data = &tegra186_xudc_soc_data
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, tegra_xudc_of_match);
+
+static void tegra_xudc_powerdomain_remove(struct tegra_xudc *xudc)
+{
+ if (xudc->genpd_dl_ss)
+ device_link_del(xudc->genpd_dl_ss);
+ if (xudc->genpd_dl_device)
+ device_link_del(xudc->genpd_dl_device);
+ if (xudc->genpd_dev_ss)
+ dev_pm_domain_detach(xudc->genpd_dev_ss, true);
+ if (xudc->genpd_dev_device)
+ dev_pm_domain_detach(xudc->genpd_dev_device, true);
+}
+
+static int tegra_xudc_powerdomain_init(struct tegra_xudc *xudc)
+{
+ struct device *dev = xudc->dev;
+ int err;
+
+ xudc->genpd_dev_device = dev_pm_domain_attach_by_name(dev,
+ "dev");
+ if (IS_ERR(xudc->genpd_dev_device)) {
+ err = PTR_ERR(xudc->genpd_dev_device);
+ dev_err(dev, "failed to get dev pm-domain: %d\n", err);
+ return err;
+ }
+
+ xudc->genpd_dev_ss = dev_pm_domain_attach_by_name(dev, "ss");
+ if (IS_ERR(xudc->genpd_dev_ss)) {
+ err = PTR_ERR(xudc->genpd_dev_ss);
+ dev_err(dev, "failed to get superspeed pm-domain: %d\n", err);
+ return err;
+ }
+
+ xudc->genpd_dl_device = device_link_add(dev, xudc->genpd_dev_device,
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_STATELESS);
+ if (!xudc->genpd_dl_device) {
+ dev_err(dev, "adding usb device device link failed!\n");
+ return -ENODEV;
+ }
+
+ xudc->genpd_dl_ss = device_link_add(dev, xudc->genpd_dev_ss,
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_STATELESS);
+ if (!xudc->genpd_dl_ss) {
+ dev_err(dev, "adding superspeed device link failed!\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int tegra_xudc_probe(struct platform_device *pdev)
+{
+ struct tegra_xudc *xudc;
+ struct resource *res;
+ struct usb_role_switch_desc role_sx_desc = { 0 };
+ unsigned int i;
+ int err;
+
+ xudc = devm_kzalloc(&pdev->dev, sizeof(*xudc), GFP_ATOMIC);
+ if (!xudc)
+ return -ENOMEM;
+
+ xudc->dev = &pdev->dev;
+ platform_set_drvdata(pdev, xudc);
+
+ xudc->soc = of_device_get_match_data(&pdev->dev);
+ if (!xudc->soc)
+ return -ENODEV;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "base");
+ xudc->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(xudc->base))
+ return PTR_ERR(xudc->base);
+ xudc->phys_base = res->start;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fpci");
+ xudc->fpci = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(xudc->fpci))
+ return PTR_ERR(xudc->fpci);
+
+ if (xudc->soc->has_ipfs) {
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "ipfs");
+ xudc->ipfs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(xudc->ipfs))
+ return PTR_ERR(xudc->ipfs);
+ }
+
+ xudc->irq = platform_get_irq(pdev, 0);
+ if (xudc->irq < 0) {
+ dev_err(xudc->dev, "failed to get IRQ: %d\n",
+ xudc->irq);
+ return xudc->irq;
+ }
+
+ err = devm_request_irq(&pdev->dev, xudc->irq, tegra_xudc_irq, 0,
+ dev_name(&pdev->dev), xudc);
+ if (err < 0) {
+ dev_err(xudc->dev, "failed to claim IRQ#%u: %d\n", xudc->irq,
+ err);
+ return err;
+ }
+
+ xudc->clks = devm_kcalloc(&pdev->dev, xudc->soc->num_clks,
+ sizeof(*xudc->clks), GFP_KERNEL);
+ if (!xudc->clks)
+ return -ENOMEM;
+
+ for (i = 0; i < xudc->soc->num_clks; i++)
+ xudc->clks[i].id = xudc->soc->clock_names[i];
+
+ err = devm_clk_bulk_get(&pdev->dev, xudc->soc->num_clks,
+ xudc->clks);
+ if (err) {
+ dev_err(xudc->dev, "failed to request clks %d\n", err);
+ return err;
+ }
+
+ xudc->supplies = devm_kcalloc(&pdev->dev, xudc->soc->num_supplies,
+ sizeof(*xudc->supplies), GFP_KERNEL);
+ if (!xudc->supplies)
+ return -ENOMEM;
+
+ for (i = 0; i < xudc->soc->num_supplies; i++)
+ xudc->supplies[i].supply = xudc->soc->supply_names[i];
+
+ err = devm_regulator_bulk_get(&pdev->dev, xudc->soc->num_supplies,
+ xudc->supplies);
+ if (err) {
+ dev_err(xudc->dev, "failed to request regulators %d\n", err);
+ return err;
+ }
+
+ xudc->padctl = tegra_xusb_padctl_get(&pdev->dev);
+ if (IS_ERR(xudc->padctl))
+ return PTR_ERR(xudc->padctl);
+
+ err = regulator_bulk_enable(xudc->soc->num_supplies, xudc->supplies);
+ if (err) {
+ dev_err(xudc->dev, "failed to enable regulators %d\n", err);
+ goto put_padctl;
+ }
+
+ xudc->usb3_phy = devm_phy_optional_get(&pdev->dev, "usb3");
+ if (IS_ERR(xudc->usb3_phy)) {
+ err = PTR_ERR(xudc->usb3_phy);
+ dev_err(xudc->dev, "failed to get usb3 phy: %d\n", err);
+ goto disable_regulator;
+ }
+
+ xudc->utmi_phy = devm_phy_optional_get(&pdev->dev, "usb2");
+ if (IS_ERR(xudc->utmi_phy)) {
+ err = PTR_ERR(xudc->utmi_phy);
+ dev_err(xudc->dev, "failed to get usb2 phy: %d\n", err);
+ goto disable_regulator;
+ }
+
+ err = tegra_xudc_powerdomain_init(xudc);
+ if (err)
+ goto put_powerdomains;
+
+ err = tegra_xudc_phy_init(xudc);
+ if (err)
+ goto put_powerdomains;
+
+ err = tegra_xudc_alloc_event_ring(xudc);
+ if (err)
+ goto disable_phy;
+
+ err = tegra_xudc_alloc_eps(xudc);
+ if (err)
+ goto free_event_ring;
+
+ spin_lock_init(&xudc->lock);
+
+ init_completion(&xudc->disconnect_complete);
+
+ INIT_WORK(&xudc->usb_role_sw_work, tegra_xudc_usb_role_sw_work);
+
+ INIT_DELAYED_WORK(&xudc->plc_reset_work, tegra_xudc_plc_reset_work);
+
+ INIT_DELAYED_WORK(&xudc->port_reset_war_work,
+ tegra_xudc_port_reset_war_work);
+
+ if (of_property_read_bool(xudc->dev->of_node, "usb-role-switch")) {
+ role_sx_desc.set = tegra_xudc_usb_role_sw_set;
+ role_sx_desc.fwnode = dev_fwnode(xudc->dev);
+
+ xudc->usb_role_sw = usb_role_switch_register(xudc->dev,
+ &role_sx_desc);
+ if (IS_ERR(xudc->usb_role_sw)) {
+ err = PTR_ERR(xudc->usb_role_sw);
+ dev_err(xudc->dev, "Failed to register USB role SW: %d",
+ err);
+ goto free_eps;
+ }
+ } else {
+ /* Set the mode as device mode and this keeps phy always ON */
+ dev_info(xudc->dev, "Set usb role to device mode always");
+ schedule_work(&xudc->usb_role_sw_work);
+ }
+
+ pm_runtime_enable(&pdev->dev);
+
+ xudc->gadget.ops = &tegra_xudc_gadget_ops;
+ xudc->gadget.ep0 = &xudc->ep[0].usb_ep;
+ xudc->gadget.name = "tegra-xudc";
+ xudc->gadget.max_speed = USB_SPEED_SUPER;
+
+ err = usb_add_gadget_udc(&pdev->dev, &xudc->gadget);
+ if (err) {
+ dev_err(&pdev->dev, "failed to add USB gadget: %d\n", err);
+ goto free_eps;
+ }
+
+ return 0;
+
+free_eps:
+ tegra_xudc_free_eps(xudc);
+free_event_ring:
+ tegra_xudc_free_event_ring(xudc);
+disable_phy:
+ tegra_xudc_phy_exit(xudc);
+put_powerdomains:
+ tegra_xudc_powerdomain_remove(xudc);
+disable_regulator:
+ regulator_bulk_disable(xudc->soc->num_supplies, xudc->supplies);
+put_padctl:
+ tegra_xusb_padctl_put(xudc->padctl);
+
+ return err;
+}
+
+static int tegra_xudc_remove(struct platform_device *pdev)
+{
+ struct tegra_xudc *xudc = platform_get_drvdata(pdev);
+
+ pm_runtime_get_sync(xudc->dev);
+
+ cancel_delayed_work(&xudc->plc_reset_work);
+
+ if (xudc->usb_role_sw) {
+ usb_role_switch_unregister(xudc->usb_role_sw);
+ cancel_work_sync(&xudc->usb_role_sw_work);
+ }
+
+ usb_del_gadget_udc(&xudc->gadget);
+
+ tegra_xudc_free_eps(xudc);
+ tegra_xudc_free_event_ring(xudc);
+
+ tegra_xudc_powerdomain_remove(xudc);
+
+ regulator_bulk_disable(xudc->soc->num_supplies, xudc->supplies);
+
+ phy_power_off(xudc->utmi_phy);
+ phy_power_off(xudc->usb3_phy);
+
+ tegra_xudc_phy_exit(xudc);
+
+ pm_runtime_disable(xudc->dev);
+ pm_runtime_put(xudc->dev);
+
+ tegra_xusb_padctl_put(xudc->padctl);
+
+ return 0;
+}
+
+static int __maybe_unused tegra_xudc_powergate(struct tegra_xudc *xudc)
+{
+ unsigned long flags;
+
+ dev_dbg(xudc->dev, "entering ELPG\n");
+
+ spin_lock_irqsave(&xudc->lock, flags);
+
+ xudc->powergated = true;
+ xudc->saved_regs.ctrl = xudc_readl(xudc, CTRL);
+ xudc->saved_regs.portpm = xudc_readl(xudc, PORTPM);
+ xudc_writel(xudc, 0, CTRL);
+
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ clk_bulk_disable_unprepare(xudc->soc->num_clks, xudc->clks);
+
+ regulator_bulk_disable(xudc->soc->num_supplies, xudc->supplies);
+
+ dev_dbg(xudc->dev, "entering ELPG done\n");
+ return 0;
+}
+
+static int __maybe_unused tegra_xudc_unpowergate(struct tegra_xudc *xudc)
+{
+ unsigned long flags;
+ int err;
+
+ dev_dbg(xudc->dev, "exiting ELPG\n");
+
+ err = regulator_bulk_enable(xudc->soc->num_supplies,
+ xudc->supplies);
+ if (err < 0)
+ return err;
+
+ err = clk_bulk_prepare_enable(xudc->soc->num_clks, xudc->clks);
+ if (err < 0)
+ return err;
+
+ tegra_xudc_fpci_ipfs_init(xudc);
+
+ tegra_xudc_device_params_init(xudc);
+
+ tegra_xudc_init_event_ring(xudc);
+
+ tegra_xudc_init_eps(xudc);
+
+ xudc_writel(xudc, xudc->saved_regs.portpm, PORTPM);
+ xudc_writel(xudc, xudc->saved_regs.ctrl, CTRL);
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ xudc->powergated = false;
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ dev_dbg(xudc->dev, "exiting ELPG done\n");
+ return 0;
+}
+
+static int __maybe_unused tegra_xudc_suspend(struct device *dev)
+{
+ struct tegra_xudc *xudc = dev_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ xudc->suspended = true;
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ flush_work(&xudc->usb_role_sw_work);
+
+ /* Forcibly disconnect before powergating. */
+ tegra_xudc_device_mode_off(xudc);
+
+ if (!pm_runtime_status_suspended(dev))
+ tegra_xudc_powergate(xudc);
+
+ pm_runtime_disable(dev);
+
+ return 0;
+}
+
+static int __maybe_unused tegra_xudc_resume(struct device *dev)
+{
+ struct tegra_xudc *xudc = dev_get_drvdata(dev);
+ unsigned long flags;
+ int err;
+
+ err = tegra_xudc_unpowergate(xudc);
+ if (err < 0)
+ return err;
+
+ spin_lock_irqsave(&xudc->lock, flags);
+ xudc->suspended = false;
+ spin_unlock_irqrestore(&xudc->lock, flags);
+
+ schedule_work(&xudc->usb_role_sw_work);
+
+ pm_runtime_enable(dev);
+
+ return 0;
+}
+
+static int __maybe_unused tegra_xudc_runtime_suspend(struct device *dev)
+{
+ struct tegra_xudc *xudc = dev_get_drvdata(dev);
+
+ return tegra_xudc_powergate(xudc);
+}
+
+static int __maybe_unused tegra_xudc_runtime_resume(struct device *dev)
+{
+ struct tegra_xudc *xudc = dev_get_drvdata(dev);
+
+ return tegra_xudc_unpowergate(xudc);
+}
+
+static const struct dev_pm_ops tegra_xudc_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(tegra_xudc_suspend, tegra_xudc_resume)
+ SET_RUNTIME_PM_OPS(tegra_xudc_runtime_suspend,
+ tegra_xudc_runtime_resume, NULL)
+};
+
+static struct platform_driver tegra_xudc_driver = {
+ .probe = tegra_xudc_probe,
+ .remove = tegra_xudc_remove,
+ .driver = {
+ .name = "tegra-xudc",
+ .pm = &tegra_xudc_pm_ops,
+ .of_match_table = tegra_xudc_of_match,
+ },
+};
+module_platform_driver(tegra_xudc_driver);
+
+MODULE_DESCRIPTION("NVIDIA Tegra XUSB Device Controller");
+MODULE_AUTHOR("Andrew Bresticker <abrestic@chromium.org>");
+MODULE_AUTHOR("Hui Fu <hfu@nvidia.com>");
+MODULE_AUTHOR("Nagarjuna Kristam <nkristam@nvidia.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 79b2e79dddd0..8d730180db06 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -38,9 +38,9 @@ config USB_XHCI_DBGCAP
before enabling this option. If unsure, say 'N'.
config USB_XHCI_PCI
- tristate
- depends on USB_PCI
- default y
+ tristate
+ depends on USB_PCI
+ default y
config USB_XHCI_PLATFORM
tristate "Generic xHCI driver for a platform device"
@@ -220,12 +220,12 @@ config USB_EHCI_HCD_ORION
Marvell PXA/MMP USB controller" for those.
config USB_EHCI_HCD_SPEAR
- tristate "Support for ST SPEAr on-chip EHCI USB controller"
- depends on USB_EHCI_HCD && PLAT_SPEAR
- default y
- ---help---
- Enables support for the on-chip EHCI controller on
- ST SPEAr chips.
+ tristate "Support for ST SPEAr on-chip EHCI USB controller"
+ depends on USB_EHCI_HCD && PLAT_SPEAR
+ default y
+ ---help---
+ Enables support for the on-chip EHCI controller on
+ ST SPEAr chips.
config USB_EHCI_HCD_STI
tristate "Support for ST STiHxxx on-chip EHCI USB controller"
@@ -237,21 +237,21 @@ config USB_EHCI_HCD_STI
STMicroelectronics consumer electronics SoC's.
config USB_EHCI_HCD_AT91
- tristate "Support for Atmel on-chip EHCI USB controller"
- depends on USB_EHCI_HCD && ARCH_AT91
- default y
- ---help---
- Enables support for the on-chip EHCI controller on
- Atmel chips.
+ tristate "Support for Atmel on-chip EHCI USB controller"
+ depends on USB_EHCI_HCD && ARCH_AT91
+ default y
+ ---help---
+ Enables support for the on-chip EHCI controller on
+ Atmel chips.
config USB_EHCI_TEGRA
- tristate "NVIDIA Tegra HCD support"
- depends on ARCH_TEGRA
- select USB_EHCI_ROOT_HUB_TT
- select USB_TEGRA_PHY
- help
- This driver enables support for the internal USB Host Controllers
- found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
+ tristate "NVIDIA Tegra HCD support"
+ depends on ARCH_TEGRA
+ select USB_EHCI_ROOT_HUB_TT
+ select USB_TEGRA_PHY
+ help
+ This driver enables support for the internal USB Host Controllers
+ found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
config USB_EHCI_HCD_PPC_OF
bool "EHCI support for PPC USB controller on OF platform bus"
@@ -269,10 +269,10 @@ config USB_EHCI_SH
If you use the PCI EHCI controller, this option is not necessary.
config USB_EHCI_EXYNOS
- tristate "EHCI support for Samsung S5P/EXYNOS SoC Series"
- depends on ARCH_S5PV210 || ARCH_EXYNOS
- help
- Enable support for the Samsung Exynos SOC's on-chip EHCI controller.
+ tristate "EHCI support for Samsung S5P/EXYNOS SoC Series"
+ depends on ARCH_S5PV210 || ARCH_EXYNOS
+ help
+ Enable support for the Samsung Exynos SOC's on-chip EHCI controller.
config USB_EHCI_MV
tristate "EHCI support for Marvell PXA/MMP USB controller"
@@ -409,12 +409,12 @@ config USB_OHCI_HCD_OMAP1
Enables support for the OHCI controller on OMAP1/2 chips.
config USB_OHCI_HCD_SPEAR
- tristate "Support for ST SPEAr on-chip OHCI USB controller"
- depends on USB_OHCI_HCD && PLAT_SPEAR
- default y
- ---help---
- Enables support for the on-chip OHCI controller on
- ST SPEAr chips.
+ tristate "Support for ST SPEAr on-chip OHCI USB controller"
+ depends on USB_OHCI_HCD && PLAT_SPEAR
+ default y
+ ---help---
+ Enables support for the on-chip OHCI controller on
+ ST SPEAr chips.
config USB_OHCI_HCD_STI
tristate "Support for ST STiHxxx on-chip OHCI USB controller"
@@ -426,12 +426,12 @@ config USB_OHCI_HCD_STI
STMicroelectronics consumer electronics SoC's.
config USB_OHCI_HCD_S3C2410
- tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series"
- depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX)
- default y
- ---help---
- Enables support for the on-chip OHCI controller on
- S3C24xx/S3C64xx chips.
+ tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series"
+ depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX)
+ default y
+ ---help---
+ Enables support for the on-chip OHCI controller on
+ S3C24xx/S3C64xx chips.
config USB_OHCI_HCD_LPC32XX
tristate "Support for LPC on-chip OHCI USB controller"
@@ -440,8 +440,8 @@ config USB_OHCI_HCD_LPC32XX
depends on USB_ISP1301
default y
---help---
- Enables support for the on-chip OHCI controller on
- NXP chips.
+ Enables support for the on-chip OHCI controller on
+ NXP chips.
config USB_OHCI_HCD_PXA27X
tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller"
@@ -456,8 +456,8 @@ config USB_OHCI_HCD_AT91
depends on USB_OHCI_HCD && ARCH_AT91 && OF
default y
---help---
- Enables support for the on-chip OHCI controller on
- Atmel chips.
+ Enables support for the on-chip OHCI controller on
+ Atmel chips.
config USB_OHCI_HCD_OMAP3
tristate "OHCI support for OMAP3 and later chips"
@@ -545,7 +545,7 @@ config USB_OHCI_EXYNOS
tristate "OHCI support for Samsung S5P/EXYNOS SoC Series"
depends on ARCH_S5PV210 || ARCH_EXYNOS
help
- Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
+ Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
config USB_CNS3XXX_OHCI
bool "Cavium CNS3XXX OHCI Module (DEPRECATED)"
@@ -609,8 +609,8 @@ config USB_UHCI_PLATFORM
default y if (ARCH_VT8500 || ARCH_ASPEED)
config USB_UHCI_ASPEED
- bool
- default y if ARCH_ASPEED
+ bool
+ default y if ARCH_ASPEED
config USB_FHCI_HCD
tristate "Freescale QE USB Host Controller support"
@@ -713,14 +713,14 @@ config USB_RENESAS_USBHS_HCD
module will be called renesas-usbhs.
config USB_IMX21_HCD
- tristate "i.MX21 HCD support"
- depends on ARM && ARCH_MXC
- help
- This driver enables support for the on-chip USB host in the
- i.MX21 processor.
-
- To compile this driver as a module, choose M here: the
- module will be called "imx21-hcd".
+ tristate "i.MX21 HCD support"
+ depends on ARM && ARCH_MXC
+ help
+ This driver enables support for the on-chip USB host in the
+ i.MX21 processor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called "imx21-hcd".
config USB_HCD_BCMA
tristate "BCMA usb host driver"
diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index 2400a826397a..652fa29beb27 100644
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -406,9 +406,12 @@ static int bcma_hcd_probe(struct bcma_device *core)
return -ENOMEM;
usb_dev->core = core;
- if (core->dev.of_node)
+ if (core->dev.of_node) {
usb_dev->gpio_desc = devm_gpiod_get(&core->dev, "vcc",
GPIOD_OUT_HIGH);
+ if (IS_ERR(usb_dev->gpio_desc))
+ return PTR_ERR(usb_dev->gpio_desc);
+ }
switch (core->id.id) {
case BCMA_CORE_USB20_HOST:
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 9e0c98d6bdb0..f967adf2d8df 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -5646,8 +5646,10 @@ static int fotg210_hcd_probe(struct platform_device *pdev)
return retval;
failed_dis_clk:
- if (!IS_ERR(fotg210->pclk))
+ if (!IS_ERR(fotg210->pclk)) {
clk_disable_unprepare(fotg210->pclk);
+ clk_put(fotg210->pclk);
+ }
failed_put_hcd:
usb_put_hcd(hcd);
fail_create_hcd:
@@ -5665,8 +5667,10 @@ static int fotg210_hcd_remove(struct platform_device *pdev)
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- if (!IS_ERR(fotg210->pclk))
+ if (!IS_ERR(fotg210->pclk)) {
clk_disable_unprepare(fotg210->pclk);
+ clk_put(fotg210->pclk);
+ }
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
diff --git a/drivers/usb/host/imx21-dbg.c b/drivers/usb/host/imx21-dbg.c
index 7fcf1d9dd7f3..02a1344fbd6a 100644
--- a/drivers/usb/host/imx21-dbg.c
+++ b/drivers/usb/host/imx21-dbg.c
@@ -419,7 +419,7 @@ static void create_debug_files(struct imx21 *imx21)
{
struct dentry *root;
- root = debugfs_create_dir(dev_name(imx21->dev), NULL);
+ root = debugfs_create_dir(dev_name(imx21->dev), usb_debug_root);
imx21->debug_root = root;
debugfs_create_file("status", S_IRUGO, root, imx21, &debug_status_fops);
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 96f8daa11f25..4a3a2852523f 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -2627,7 +2627,7 @@ static int isp1362_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct isp1362_hcd *isp1362_hcd;
- struct resource *addr, *data, *irq_res;
+ struct resource *data, *irq_res;
void __iomem *addr_reg;
void __iomem *data_reg;
int irq;
@@ -2651,8 +2651,7 @@ static int isp1362_probe(struct platform_device *pdev)
irq = irq_res->start;
- addr = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- addr_reg = devm_ioremap_resource(&pdev->dev, addr);
+ addr_reg = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(addr_reg))
return PTR_ERR(addr_reg);
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index fc35a7993b7b..b635c6a1b1a9 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -115,7 +115,6 @@ static void at91_start_hc(struct platform_device *pdev)
static void at91_stop_hc(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
- struct ohci_regs __iomem *regs = hcd->regs;
struct ohci_at91_priv *ohci_at91 = hcd_to_ohci_at91_priv(hcd);
dev_dbg(&pdev->dev, "stop\n");
@@ -123,7 +122,7 @@ static void at91_stop_hc(struct platform_device *pdev)
/*
* Put the USB host controller into reset.
*/
- writel(0, &regs->control);
+ usb_hcd_platform_shutdown(pdev);
/*
* Stop the USB clocks.
@@ -628,6 +627,7 @@ ohci_hcd_at91_drv_suspend(struct device *dev)
/* flush the writes */
(void) ohci_readl (ohci, &ohci->regs->control);
+ msleep(1);
at91_stop_clock(ohci_at91);
}
@@ -642,8 +642,8 @@ ohci_hcd_at91_drv_resume(struct device *dev)
if (ohci_at91->wakeup)
disable_irq_wake(hcd->irq);
-
- at91_start_clock(ohci_at91);
+ else
+ at91_start_clock(ohci_at91);
ohci_resume(hcd, false);
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index c561881d0e79..85878e8ad331 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -150,7 +150,7 @@ static void ohci_nxp_stop_hc(void)
static int ohci_hcd_nxp_probe(struct platform_device *pdev)
{
- struct usb_hcd *hcd = 0;
+ struct usb_hcd *hcd = NULL;
const struct hc_driver *driver = &ohci_nxp_hc_driver;
struct resource *res;
int ret = 0, irq;
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index e67242e437ed..fe09b8626329 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -676,12 +676,12 @@ static int oxu_hub_control(struct usb_hcd *hcd,
*/
/* Low level read/write registers functions */
-static inline u32 oxu_readl(void *base, u32 reg)
+static inline u32 oxu_readl(void __iomem *base, u32 reg)
{
return readl(base + reg);
}
-static inline void oxu_writel(void *base, u32 reg, u32 val)
+static inline void oxu_writel(void __iomem *base, u32 reg, u32 val)
{
writel(val, base + reg);
}
@@ -4063,7 +4063,7 @@ static const struct hc_driver oxu_hc_driver = {
* Module stuff
*/
-static void oxu_configuration(struct platform_device *pdev, void *base)
+static void oxu_configuration(struct platform_device *pdev, void __iomem *base)
{
u32 tmp;
@@ -4093,7 +4093,7 @@ static void oxu_configuration(struct platform_device *pdev, void *base)
oxu_writel(base, OXU_CHIPIRQEN_SET, OXU_USBSPHLPWUI | OXU_USBOTGLPWUI);
}
-static int oxu_verify_id(struct platform_device *pdev, void *base)
+static int oxu_verify_id(struct platform_device *pdev, void __iomem *base)
{
u32 id;
static const char * const bo[] = {
@@ -4121,7 +4121,7 @@ static int oxu_verify_id(struct platform_device *pdev, void *base)
static const struct hc_driver oxu_hc_driver;
static struct usb_hcd *oxu_create(struct platform_device *pdev,
unsigned long memstart, unsigned long memlen,
- void *base, int irq, int otg)
+ void __iomem *base, int irq, int otg)
{
struct device *dev = &pdev->dev;
@@ -4158,7 +4158,7 @@ static struct usb_hcd *oxu_create(struct platform_device *pdev,
static int oxu_init(struct platform_device *pdev,
unsigned long memstart, unsigned long memlen,
- void *base, int irq)
+ void __iomem *base, int irq)
{
struct oxu_info *info = platform_get_drvdata(pdev);
struct usb_hcd *hcd;
@@ -4207,7 +4207,7 @@ error_create_otg:
static int oxu_drv_probe(struct platform_device *pdev)
{
struct resource *res;
- void *base;
+ void __iomem *base;
unsigned long memstart, memlen;
int irq, ret;
struct oxu_info *info;
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 4efee34f154f..e9209e3e6248 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -71,7 +71,7 @@ INT_MODULE_PARM(testing, 0);
/* Some boards misreport power switching/overcurrent*/
static bool distrust_firmware = true;
module_param(distrust_firmware, bool, 0);
-MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
+MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurrent"
"t setup");
static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
/*
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 1e0236e90687..a0025d23b257 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -48,6 +48,7 @@
#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI 0x15e9
#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI 0x15ec
#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI 0x15f0
+#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13
#define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9
#define PCI_DEVICE_ID_AMD_PROMONTORYA_3 0x43ba
@@ -212,7 +213,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI))
+ pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI))
xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index e7aab31fd9a5..6475c3d3b43b 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -280,6 +280,9 @@ void xhci_ring_cmd_db(struct xhci_hcd *xhci)
return;
xhci_dbg(xhci, "// Ding dong!\n");
+
+ trace_xhci_ring_host_doorbell(0, DB_VALUE_HOST);
+
writel(DB_VALUE_HOST, &xhci->dba->doorbell[0]);
/* Flush PCI posted writes */
readl(&xhci->dba->doorbell[0]);
@@ -401,6 +404,9 @@ void xhci_ring_ep_doorbell(struct xhci_hcd *xhci,
if ((ep_state & EP_STOP_CMD_PENDING) || (ep_state & SET_DEQ_PENDING) ||
(ep_state & EP_HALTED) || (ep_state & EP_CLEARING_TT))
return;
+
+ trace_xhci_ring_ep_doorbell(slot_id, DB_VALUE(ep_index, stream_id));
+
writel(DB_VALUE(ep_index, stream_id), db_addr);
/* The CPU has better things to do at this point than wait for a
* write-posting flush. It'll get there soon enough.
@@ -651,10 +657,8 @@ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci,
}
xhci_urb_free_priv(urb_priv);
usb_hcd_unlink_urb_from_ep(hcd, urb);
- spin_unlock(&xhci->lock);
trace_xhci_urb_giveback(urb);
usb_hcd_giveback_urb(hcd, urb, status);
- spin_lock(&xhci->lock);
}
static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci,
@@ -2741,6 +2745,42 @@ static int xhci_handle_event(struct xhci_hcd *xhci)
}
/*
+ * Update Event Ring Dequeue Pointer:
+ * - When all events have finished
+ * - To avoid "Event Ring Full Error" condition
+ */
+static void xhci_update_erst_dequeue(struct xhci_hcd *xhci,
+ union xhci_trb *event_ring_deq)
+{
+ u64 temp_64;
+ dma_addr_t deq;
+
+ temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+ /* If necessary, update the HW's version of the event ring deq ptr. */
+ if (event_ring_deq != xhci->event_ring->dequeue) {
+ deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg,
+ xhci->event_ring->dequeue);
+ if (deq == 0)
+ xhci_warn(xhci, "WARN something wrong with SW event ring dequeue ptr\n");
+ /*
+ * Per 4.9.4, Software writes to the ERDP register shall
+ * always advance the Event Ring Dequeue Pointer value.
+ */
+ if ((temp_64 & (u64) ~ERST_PTR_MASK) ==
+ ((u64) deq & (u64) ~ERST_PTR_MASK))
+ return;
+
+ /* Update HC event ring dequeue pointer */
+ temp_64 &= ERST_PTR_MASK;
+ temp_64 |= ((u64) deq & (u64) ~ERST_PTR_MASK);
+ }
+
+ /* Clear the event handler busy flag (RW1C) */
+ temp_64 |= ERST_EHB;
+ xhci_write_64(xhci, temp_64, &xhci->ir_set->erst_dequeue);
+}
+
+/*
* xHCI spec says we can get an interrupt, and if the HC has an error condition,
* we might get bad data out of the event ring. Section 4.10.2.7 has a list of
* indicators of an event TRB error, but we check the status *first* to be safe.
@@ -2751,9 +2791,9 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
union xhci_trb *event_ring_deq;
irqreturn_t ret = IRQ_NONE;
unsigned long flags;
- dma_addr_t deq;
u64 temp_64;
u32 status;
+ int event_loop = 0;
spin_lock_irqsave(&xhci->lock, flags);
/* Check if the xHC generated the interrupt, or the irq is shared */
@@ -2807,24 +2847,14 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
/* FIXME this should be a delayed service routine
* that clears the EHB.
*/
- while (xhci_handle_event(xhci) > 0) {}
-
- temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
- /* If necessary, update the HW's version of the event ring deq ptr. */
- if (event_ring_deq != xhci->event_ring->dequeue) {
- deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg,
- xhci->event_ring->dequeue);
- if (deq == 0)
- xhci_warn(xhci, "WARN something wrong with SW event "
- "ring dequeue ptr.\n");
- /* Update HC event ring dequeue pointer */
- temp_64 &= ERST_PTR_MASK;
- temp_64 |= ((u64) deq & (u64) ~ERST_PTR_MASK);
+ while (xhci_handle_event(xhci) > 0) {
+ if (event_loop++ < TRBS_PER_SEGMENT / 2)
+ continue;
+ xhci_update_erst_dequeue(xhci, event_ring_deq);
+ event_loop = 0;
}
- /* Clear the event handler busy flag (RW1C); event ring is empty. */
- temp_64 |= ERST_EHB;
- xhci_write_64(xhci, temp_64, &xhci->ir_set->erst_dequeue);
+ xhci_update_erst_dequeue(xhci, event_ring_deq);
ret = IRQ_HANDLED;
out:
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 2ff7c911fbd0..bf9065438320 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -42,19 +42,18 @@
#define XUSB_CFG_CSB_BASE_ADDR 0x800
/* FPCI mailbox registers */
-#define XUSB_CFG_ARU_MBOX_CMD 0x0e4
+/* XUSB_CFG_ARU_MBOX_CMD */
#define MBOX_DEST_FALC BIT(27)
#define MBOX_DEST_PME BIT(28)
#define MBOX_DEST_SMI BIT(29)
#define MBOX_DEST_XHCI BIT(30)
#define MBOX_INT_EN BIT(31)
-#define XUSB_CFG_ARU_MBOX_DATA_IN 0x0e8
+/* XUSB_CFG_ARU_MBOX_DATA_IN and XUSB_CFG_ARU_MBOX_DATA_OUT */
#define CMD_DATA_SHIFT 0
#define CMD_DATA_MASK 0xffffff
#define CMD_TYPE_SHIFT 24
#define CMD_TYPE_MASK 0xff
-#define XUSB_CFG_ARU_MBOX_DATA_OUT 0x0ec
-#define XUSB_CFG_ARU_MBOX_OWNER 0x0f0
+/* XUSB_CFG_ARU_MBOX_OWNER */
#define MBOX_OWNER_NONE 0
#define MBOX_OWNER_FW 1
#define MBOX_OWNER_SW 2
@@ -146,6 +145,13 @@ struct tegra_xusb_phy_type {
unsigned int num;
};
+struct tega_xusb_mbox_regs {
+ u16 cmd;
+ u16 data_in;
+ u16 data_out;
+ u16 owner;
+};
+
struct tegra_xusb_soc {
const char *firmware;
const char * const *supply_names;
@@ -160,6 +166,8 @@ struct tegra_xusb_soc {
} usb2, ulpi, hsic, usb3;
} ports;
+ struct tega_xusb_mbox_regs mbox;
+
bool scale_ss_clock;
bool has_ipfs;
};
@@ -395,15 +403,15 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra,
* ACK/NAK messages.
*/
if (!(msg->cmd == MBOX_CMD_ACK || msg->cmd == MBOX_CMD_NAK)) {
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value != MBOX_OWNER_NONE) {
dev_err(tegra->dev, "mailbox is busy\n");
return -EBUSY;
}
- fpci_writel(tegra, MBOX_OWNER_SW, XUSB_CFG_ARU_MBOX_OWNER);
+ fpci_writel(tegra, MBOX_OWNER_SW, tegra->soc->mbox.owner);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value != MBOX_OWNER_SW) {
dev_err(tegra->dev, "failed to acquire mailbox\n");
return -EBUSY;
@@ -413,17 +421,17 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra,
}
value = tegra_xusb_mbox_pack(msg);
- fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_DATA_IN);
+ fpci_writel(tegra, value, tegra->soc->mbox.data_in);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_CMD);
+ value = fpci_readl(tegra, tegra->soc->mbox.cmd);
value |= MBOX_INT_EN | MBOX_DEST_FALC;
- fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_CMD);
+ fpci_writel(tegra, value, tegra->soc->mbox.cmd);
if (wait_for_idle) {
unsigned long timeout = jiffies + msecs_to_jiffies(250);
while (time_before(jiffies, timeout)) {
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value == MBOX_OWNER_NONE)
break;
@@ -431,7 +439,7 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra,
}
if (time_after(jiffies, timeout))
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value != MBOX_OWNER_NONE)
return -ETIMEDOUT;
@@ -598,16 +606,16 @@ static irqreturn_t tegra_xusb_mbox_thread(int irq, void *data)
mutex_lock(&tegra->lock);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_DATA_OUT);
+ value = fpci_readl(tegra, tegra->soc->mbox.data_out);
tegra_xusb_mbox_unpack(&msg, value);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_CMD);
+ value = fpci_readl(tegra, tegra->soc->mbox.cmd);
value &= ~MBOX_DEST_SMI;
- fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_CMD);
+ fpci_writel(tegra, value, tegra->soc->mbox.cmd);
/* clear mailbox owner if no ACK/NAK is required */
if (!tegra_xusb_mbox_cmd_requires_ack(msg.cmd))
- fpci_writel(tegra, MBOX_OWNER_NONE, XUSB_CFG_ARU_MBOX_OWNER);
+ fpci_writel(tegra, MBOX_OWNER_NONE, tegra->soc->mbox.owner);
tegra_xusb_mbox_handle(tegra, &msg);
@@ -755,7 +763,6 @@ static int tegra_xusb_runtime_suspend(struct device *dev)
{
struct tegra_xusb *tegra = dev_get_drvdata(dev);
- tegra_xusb_phy_disable(tegra);
regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
tegra_xusb_clk_disable(tegra);
@@ -779,16 +786,8 @@ static int tegra_xusb_runtime_resume(struct device *dev)
goto disable_clk;
}
- err = tegra_xusb_phy_enable(tegra);
- if (err < 0) {
- dev_err(dev, "failed to enable PHYs: %d\n", err);
- goto disable_regulator;
- }
-
return 0;
-disable_regulator:
- regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
disable_clk:
tegra_xusb_clk_disable(tegra);
return err;
@@ -970,7 +969,7 @@ static int tegra_xusb_powerdomain_init(struct device *dev,
static int tegra_xusb_probe(struct platform_device *pdev)
{
struct tegra_xusb_mbox_msg msg;
- struct resource *res, *regs;
+ struct resource *regs;
struct tegra_xusb *tegra;
struct xhci_hcd *xhci;
unsigned int i, j, k;
@@ -992,14 +991,12 @@ static int tegra_xusb_probe(struct platform_device *pdev)
if (IS_ERR(tegra->regs))
return PTR_ERR(tegra->regs);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- tegra->fpci_base = devm_ioremap_resource(&pdev->dev, res);
+ tegra->fpci_base = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(tegra->fpci_base))
return PTR_ERR(tegra->fpci_base);
if (tegra->soc->has_ipfs) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- tegra->ipfs_base = devm_ioremap_resource(&pdev->dev, res);
+ tegra->ipfs_base = devm_platform_ioremap_resource(pdev, 2);
if (IS_ERR(tegra->ipfs_base))
return PTR_ERR(tegra->ipfs_base);
}
@@ -1128,8 +1125,9 @@ static int tegra_xusb_probe(struct platform_device *pdev)
goto put_powerdomains;
}
- for (i = 0; i < tegra->soc->num_supplies; i++)
- tegra->supplies[i].supply = tegra->soc->supply_names[i];
+ regulator_bulk_set_supply_names(tegra->supplies,
+ tegra->soc->supply_names,
+ tegra->soc->num_supplies);
err = devm_regulator_bulk_get(&pdev->dev, tegra->soc->num_supplies,
tegra->supplies);
@@ -1181,6 +1179,12 @@ static int tegra_xusb_probe(struct platform_device *pdev)
*/
platform_set_drvdata(pdev, tegra);
+ err = tegra_xusb_phy_enable(tegra);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to enable PHYs: %d\n", err);
+ goto put_hcd;
+ }
+
pm_runtime_enable(&pdev->dev);
if (pm_runtime_enabled(&pdev->dev))
err = pm_runtime_get_sync(&pdev->dev);
@@ -1189,7 +1193,7 @@ static int tegra_xusb_probe(struct platform_device *pdev)
if (err < 0) {
dev_err(&pdev->dev, "failed to enable device: %d\n", err);
- goto disable_rpm;
+ goto disable_phy;
}
tegra_xusb_config(tegra, regs);
@@ -1275,9 +1279,11 @@ remove_usb2:
put_rpm:
if (!pm_runtime_status_suspended(&pdev->dev))
tegra_xusb_runtime_suspend(&pdev->dev);
-disable_rpm:
- pm_runtime_disable(&pdev->dev);
+put_hcd:
usb_put_hcd(tegra->hcd);
+disable_phy:
+ tegra_xusb_phy_disable(tegra);
+ pm_runtime_disable(&pdev->dev);
put_powerdomains:
if (!of_property_read_bool(pdev->dev.of_node, "power-domains")) {
tegra_powergate_power_off(TEGRA_POWERGATE_XUSBC);
@@ -1314,6 +1320,8 @@ static int tegra_xusb_remove(struct platform_device *pdev)
tegra_xusb_powerdomain_remove(&pdev->dev, tegra);
}
+ tegra_xusb_phy_disable(tegra);
+
tegra_xusb_padctl_put(tegra->padctl);
return 0;
@@ -1375,6 +1383,12 @@ static const struct tegra_xusb_soc tegra124_soc = {
},
.scale_ss_clock = true,
.has_ipfs = true,
+ .mbox = {
+ .cmd = 0xe4,
+ .data_in = 0xe8,
+ .data_out = 0xec,
+ .owner = 0xf0,
+ },
};
MODULE_FIRMWARE("nvidia/tegra124/xusb.bin");
@@ -1407,6 +1421,12 @@ static const struct tegra_xusb_soc tegra210_soc = {
},
.scale_ss_clock = false,
.has_ipfs = true,
+ .mbox = {
+ .cmd = 0xe4,
+ .data_in = 0xe8,
+ .data_out = 0xec,
+ .owner = 0xf0,
+ },
};
MODULE_FIRMWARE("nvidia/tegra210/xusb.bin");
@@ -1432,12 +1452,48 @@ static const struct tegra_xusb_soc tegra186_soc = {
},
.scale_ss_clock = false,
.has_ipfs = false,
+ .mbox = {
+ .cmd = 0xe4,
+ .data_in = 0xe8,
+ .data_out = 0xec,
+ .owner = 0xf0,
+ },
+};
+
+static const char * const tegra194_supply_names[] = {
+};
+
+static const struct tegra_xusb_phy_type tegra194_phy_types[] = {
+ { .name = "usb3", .num = 4, },
+ { .name = "usb2", .num = 4, },
+};
+
+static const struct tegra_xusb_soc tegra194_soc = {
+ .firmware = "nvidia/tegra194/xusb.bin",
+ .supply_names = tegra194_supply_names,
+ .num_supplies = ARRAY_SIZE(tegra194_supply_names),
+ .phy_types = tegra194_phy_types,
+ .num_types = ARRAY_SIZE(tegra194_phy_types),
+ .ports = {
+ .usb3 = { .offset = 0, .count = 4, },
+ .usb2 = { .offset = 4, .count = 4, },
+ },
+ .scale_ss_clock = false,
+ .has_ipfs = false,
+ .mbox = {
+ .cmd = 0x68,
+ .data_in = 0x6c,
+ .data_out = 0x70,
+ .owner = 0x74,
+ },
};
+MODULE_FIRMWARE("nvidia/tegra194/xusb.bin");
static const struct of_device_id tegra_xusb_of_match[] = {
{ .compatible = "nvidia,tegra124-xusb", .data = &tegra124_soc },
{ .compatible = "nvidia,tegra210-xusb", .data = &tegra210_soc },
{ .compatible = "nvidia,tegra186-xusb", .data = &tegra186_soc },
+ { .compatible = "nvidia,tegra194-xusb", .data = &tegra194_soc },
{ },
};
MODULE_DEVICE_TABLE(of, tegra_xusb_of_match);
diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index 052a269d86f2..56eb867803a6 100644
--- a/drivers/usb/host/xhci-trace.h
+++ b/drivers/usb/host/xhci-trace.h
@@ -560,6 +560,32 @@ DEFINE_EVENT(xhci_log_portsc, xhci_hub_status_data,
TP_ARGS(portnum, portsc)
);
+DECLARE_EVENT_CLASS(xhci_log_doorbell,
+ TP_PROTO(u32 slot, u32 doorbell),
+ TP_ARGS(slot, doorbell),
+ TP_STRUCT__entry(
+ __field(u32, slot)
+ __field(u32, doorbell)
+ ),
+ TP_fast_assign(
+ __entry->slot = slot;
+ __entry->doorbell = doorbell;
+ ),
+ TP_printk("Ring doorbell for %s",
+ xhci_decode_doorbell(__entry->slot, __entry->doorbell)
+ )
+);
+
+DEFINE_EVENT(xhci_log_doorbell, xhci_ring_ep_doorbell,
+ TP_PROTO(u32 slot, u32 doorbell),
+ TP_ARGS(slot, doorbell)
+);
+
+DEFINE_EVENT(xhci_log_doorbell, xhci_ring_host_doorbell,
+ TP_PROTO(u32 slot, u32 doorbell),
+ TP_ARGS(slot, doorbell)
+);
+
DECLARE_EVENT_CLASS(xhci_dbc_log_request,
TP_PROTO(struct dbc_request *req),
TP_ARGS(req),
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 6c17e3fe181a..6721d059f58a 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5301,7 +5301,8 @@ static const struct hc_driver xhci_hc_driver = {
* generic hardware linkage
*/
.irq = xhci_irq,
- .flags = HCD_MEMORY | HCD_DMA | HCD_USB3 | HCD_SHARED,
+ .flags = HCD_MEMORY | HCD_DMA | HCD_USB3 | HCD_SHARED |
+ HCD_BH,
/*
* basic lifecycle operations
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index f9f88626a57a..dc6f62a4b197 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -2580,6 +2580,35 @@ static inline const char *xhci_decode_portsc(u32 portsc)
return str;
}
+static inline const char *xhci_decode_doorbell(u32 slot, u32 doorbell)
+{
+ static char str[256];
+ u8 ep;
+ u16 stream;
+ int ret;
+
+ ep = (doorbell & 0xff);
+ stream = doorbell >> 16;
+
+ if (slot == 0) {
+ sprintf(str, "Command Ring %d", doorbell);
+ return str;
+ }
+ ret = sprintf(str, "Slot %d ", slot);
+ if (ep > 0 && ep < 32)
+ ret = sprintf(str + ret, "ep%d%s",
+ ep / 2,
+ ep % 2 ? "in" : "out");
+ else if (ep == 0 || ep < 248)
+ ret = sprintf(str + ret, "Reserved %d", ep);
+ else
+ ret = sprintf(str + ret, "Vendor Defined %d", ep);
+ if (stream)
+ ret = sprintf(str + ret, " Stream %d", stream);
+
+ return str;
+}
+
static inline const char *xhci_ep_state_string(u8 state)
{
switch (state) {
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index 7a6b122c833f..360416680e82 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -566,7 +566,6 @@ static int
mts_scsi_queuecommand_lck(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback)
{
struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
- int err = 0;
int res;
MTS_DEBUG_GOT_HERE();
@@ -613,7 +612,7 @@ mts_scsi_queuecommand_lck(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback
}
out:
- return err;
+ return 0;
}
static DEF_SCSI_QCMD(mts_scsi_queuecommand)
diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c
index 320fc4739835..579a21bd70ad 100644
--- a/drivers/usb/isp1760/isp1760-hcd.c
+++ b/drivers/usb/isp1760/isp1760-hcd.c
@@ -1032,8 +1032,6 @@ static int check_atl_transfer(struct usb_hcd *hcd, struct ptd *ptd,
urb->status = -EOVERFLOW;
else if (FROM_DW3_CERR(ptd->dw3))
urb->status = -EPIPE; /* Stall */
- else if (ptd->dw3 & DW3_ERROR_BIT)
- urb->status = -EPROTO; /* XactErr */
else
urb->status = -EPROTO; /* Unknown */
/*
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 9bce583aada3..834b2494da73 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -181,8 +181,8 @@ config USB_TEST
including sample test device firmware and "how to use it".
config USB_EHSET_TEST_FIXTURE
- tristate "USB EHSET Test Fixture driver"
- help
+ tristate "USB EHSET Test Fixture driver"
+ help
Say Y here if you want to support the special test fixture device
used for the USB-IF Embedded Host High-Speed Electrical Test procedure.
@@ -233,17 +233,17 @@ config USB_HUB_USB251XB
Say Y or M here if you need to configure such a device via SMBus.
config USB_HSIC_USB3503
- tristate "USB3503 HSIC to USB20 Driver"
- depends on I2C
- select REGMAP_I2C
- help
- This option enables support for SMSC USB3503 HSIC to USB 2.0 Driver.
+ tristate "USB3503 HSIC to USB20 Driver"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This option enables support for SMSC USB3503 HSIC to USB 2.0 Driver.
config USB_HSIC_USB4604
- tristate "USB4604 HSIC to USB20 Driver"
- depends on I2C
- help
- This option enables support for SMSC USB4604 HSIC to USB 2.0 Driver.
+ tristate "USB4604 HSIC to USB20 Driver"
+ depends on I2C
+ help
+ This option enables support for SMSC USB4604 HSIC to USB 2.0 Driver.
config USB_LINK_LAYER_TEST
tristate "USB Link Layer Test driver"
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index ac92725458b5..ba1eaabc7796 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -164,7 +164,12 @@ static int appledisplay_bl_get_brightness(struct backlight_device *bd)
0,
pdata->msgdata, 2,
ACD_USB_TIMEOUT);
- brightness = pdata->msgdata[1];
+ if (retval < 2) {
+ if (retval >= 0)
+ retval = -EMSGSIZE;
+ } else {
+ brightness = pdata->msgdata[1];
+ }
mutex_unlock(&pdata->sysfslock);
if (retval < 0)
@@ -299,6 +304,7 @@ error:
if (pdata) {
if (pdata->urb) {
usb_kill_urb(pdata->urb);
+ cancel_delayed_work_sync(&pdata->work);
if (pdata->urbdata)
usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN,
pdata->urbdata, pdata->urb->transfer_dma);
diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c
index 34e6cd6f40d3..87067c3d6109 100644
--- a/drivers/usb/misc/chaoskey.c
+++ b/drivers/usb/misc/chaoskey.c
@@ -384,13 +384,17 @@ static int _chaoskey_fill(struct chaoskey *dev)
!dev->reading,
(started ? NAK_TIMEOUT : ALEA_FIRST_TIMEOUT) );
- if (result < 0)
+ if (result < 0) {
+ usb_kill_urb(dev->urb);
goto out;
+ }
- if (result == 0)
+ if (result == 0) {
result = -ETIMEDOUT;
- else
+ usb_kill_urb(dev->urb);
+ } else {
result = dev->valid;
+ }
out:
/* Let the device go back to sleep eventually */
usb_autopm_put_interface(dev->interface);
@@ -526,7 +530,21 @@ static int chaoskey_suspend(struct usb_interface *interface,
static int chaoskey_resume(struct usb_interface *interface)
{
+ struct chaoskey *dev;
+ struct usb_device *udev = interface_to_usbdev(interface);
+
usb_dbg(interface, "resume");
+ dev = usb_get_intfdata(interface);
+
+ /*
+ * We may have lost power.
+ * In that case the device that needs a long time
+ * for the first requests needs an extended timeout
+ * again
+ */
+ if (le16_to_cpu(udev->descriptor.idVendor) == ALEA_VENDOR_ID)
+ dev->reads_started = false;
+
return 0;
}
#else
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index cdee3af33ad7..8a3d9c0c8d8b 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -333,7 +333,8 @@ static void ftdi_elan_abandon_completions(struct usb_ftdi *ftdi)
*respond->result = -ESHUTDOWN;
*respond->value = 0;
complete(&respond->wait_completion);
- } mutex_unlock(&ftdi->u132_lock);
+ }
+ mutex_unlock(&ftdi->u132_lock);
}
static void ftdi_elan_abandon_targets(struct usb_ftdi *ftdi)
@@ -763,7 +764,8 @@ static int ftdi_elan_total_command_size(struct usb_ftdi *ftdi, int command_size)
struct u132_command *command = &ftdi->command[COMMAND_MASK &
i++];
total_size += 5 + command->follows;
- } return total_size;
+ }
+ return total_size;
}
static int ftdi_elan_command_engine(struct usb_ftdi *ftdi)
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index 20b0f91a5d9b..4afb5ddfd361 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -56,11 +56,10 @@ static const struct usb_device_id idmouse_table[] = {
#define FTIP_SCROLL 0x24
#define ftip_command(dev, command, value, index) \
- usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0), command, \
+ usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), command, \
USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, value, index, NULL, 0, 1000)
MODULE_DEVICE_TABLE(usb, idmouse_table);
-static DEFINE_MUTEX(open_disc_mutex);
/* structure to hold all of our device specific stuff */
struct usb_idmouse {
@@ -158,8 +157,8 @@ static int idmouse_create_image(struct usb_idmouse *dev)
/* loop over a blocking bulk read to get data from the device */
while (bytes_read < IMGSIZE) {
- result = usb_bulk_msg (dev->udev,
- usb_rcvbulkpipe (dev->udev, dev->bulk_in_endpointAddr),
+ result = usb_bulk_msg(dev->udev,
+ usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr),
dev->bulk_in_buffer + bytes_read,
dev->bulk_in_size, &bulk_read, 5000);
if (result < 0) {
@@ -223,21 +222,17 @@ static int idmouse_open(struct inode *inode, struct file *file)
int result;
/* get the interface from minor number and driver information */
- interface = usb_find_interface (&idmouse_driver, iminor (inode));
+ interface = usb_find_interface(&idmouse_driver, iminor(inode));
if (!interface)
return -ENODEV;
- mutex_lock(&open_disc_mutex);
/* get the device information block from the interface */
dev = usb_get_intfdata(interface);
- if (!dev) {
- mutex_unlock(&open_disc_mutex);
+ if (!dev)
return -ENODEV;
- }
/* lock this device */
mutex_lock(&dev->lock);
- mutex_unlock(&open_disc_mutex);
/* check if already open */
if (dev->open) {
@@ -251,7 +246,7 @@ static int idmouse_open(struct inode *inode, struct file *file)
result = usb_autopm_get_interface(interface);
if (result)
goto error;
- result = idmouse_create_image (dev);
+ result = idmouse_create_image(dev);
usb_autopm_put_interface(interface);
if (result)
goto error;
@@ -280,27 +275,17 @@ static int idmouse_release(struct inode *inode, struct file *file)
if (dev == NULL)
return -ENODEV;
- mutex_lock(&open_disc_mutex);
/* lock our device */
mutex_lock(&dev->lock);
- /* are we really open? */
- if (dev->open <= 0) {
- mutex_unlock(&dev->lock);
- mutex_unlock(&open_disc_mutex);
- return -ENODEV;
- }
-
--dev->open;
if (!dev->present) {
/* the device was unplugged before the file was released */
mutex_unlock(&dev->lock);
- mutex_unlock(&open_disc_mutex);
idmouse_delete(dev);
} else {
mutex_unlock(&dev->lock);
- mutex_unlock(&open_disc_mutex);
}
return 0;
}
@@ -379,7 +364,6 @@ static int idmouse_probe(struct usb_interface *interface,
if (result) {
/* something prevented us from registering this device */
dev_err(&interface->dev, "Unable to allocate minor number.\n");
- usb_set_intfdata(interface, NULL);
idmouse_delete(dev);
return result;
}
@@ -392,19 +376,13 @@ static int idmouse_probe(struct usb_interface *interface,
static void idmouse_disconnect(struct usb_interface *interface)
{
- struct usb_idmouse *dev;
-
- /* get device structure */
- dev = usb_get_intfdata(interface);
+ struct usb_idmouse *dev = usb_get_intfdata(interface);
/* give back our minor */
usb_deregister_dev(interface, &idmouse_class);
- mutex_lock(&open_disc_mutex);
- usb_set_intfdata(interface, NULL);
/* lock the device */
mutex_lock(&dev->lock);
- mutex_unlock(&open_disc_mutex);
/* prevent device read, write and ioctl */
dev->present = 0;
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 23061f1526b4..ab4b98b04115 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -157,19 +157,19 @@ MODULE_PARM_DESC(interrupt_out_interval, "Interrupt out interval in ms");
#define LEGO_USB_TOWER_REQUEST_GET_VERSION 0xFD
struct tower_reset_reply {
- __le16 size; /* little-endian */
+ __le16 size;
__u8 err_code;
__u8 spare;
-} __attribute__ ((packed));
+};
struct tower_get_version_reply {
- __le16 size; /* little-endian */
+ __le16 size;
__u8 err_code;
__u8 spare;
__u8 major;
__u8 minor;
- __le16 build_no; /* little-endian */
-} __attribute__ ((packed));
+ __le16 build_no;
+};
/* table of devices that work with this driver */
@@ -178,7 +178,7 @@ static const struct usb_device_id tower_table[] = {
{ } /* Terminating entry */
};
-MODULE_DEVICE_TABLE (usb, tower_table);
+MODULE_DEVICE_TABLE(usb, tower_table);
#define LEGO_USB_TOWER_MINOR_BASE 160
@@ -186,13 +186,13 @@ MODULE_DEVICE_TABLE (usb, tower_table);
/* Structure to hold all of our device specific stuff */
struct lego_usb_tower {
struct mutex lock; /* locks this structure */
- struct usb_device* udev; /* save off the usb device pointer */
+ struct usb_device *udev; /* save off the usb device pointer */
unsigned char minor; /* the starting minor number for this device */
int open_count; /* number of times this port has been opened */
unsigned long disconnected:1;
- char* read_buffer;
+ char *read_buffer;
size_t read_buffer_length; /* this much came in */
size_t read_packet_length; /* this much will be returned on read */
spinlock_t read_buffer_lock;
@@ -202,16 +202,15 @@ struct lego_usb_tower {
wait_queue_head_t read_wait;
wait_queue_head_t write_wait;
- char* interrupt_in_buffer;
- struct usb_endpoint_descriptor* interrupt_in_endpoint;
- struct urb* interrupt_in_urb;
+ char *interrupt_in_buffer;
+ struct usb_endpoint_descriptor *interrupt_in_endpoint;
+ struct urb *interrupt_in_urb;
int interrupt_in_interval;
- int interrupt_in_running;
int interrupt_in_done;
- char* interrupt_out_buffer;
- struct usb_endpoint_descriptor* interrupt_out_endpoint;
- struct urb* interrupt_out_urb;
+ char *interrupt_out_buffer;
+ struct usb_endpoint_descriptor *interrupt_out_endpoint;
+ struct urb *interrupt_out_urb;
int interrupt_out_interval;
int interrupt_out_busy;
@@ -219,21 +218,20 @@ struct lego_usb_tower {
/* local function prototypes */
-static ssize_t tower_read (struct file *file, char __user *buffer, size_t count, loff_t *ppos);
-static ssize_t tower_write (struct file *file, const char __user *buffer, size_t count, loff_t *ppos);
-static inline void tower_delete (struct lego_usb_tower *dev);
-static int tower_open (struct inode *inode, struct file *file);
-static int tower_release (struct inode *inode, struct file *file);
-static __poll_t tower_poll (struct file *file, poll_table *wait);
-static loff_t tower_llseek (struct file *file, loff_t off, int whence);
+static ssize_t tower_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos);
+static ssize_t tower_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos);
+static inline void tower_delete(struct lego_usb_tower *dev);
+static int tower_open(struct inode *inode, struct file *file);
+static int tower_release(struct inode *inode, struct file *file);
+static __poll_t tower_poll(struct file *file, poll_table *wait);
+static loff_t tower_llseek(struct file *file, loff_t off, int whence);
-static void tower_abort_transfers (struct lego_usb_tower *dev);
-static void tower_check_for_read_packet (struct lego_usb_tower *dev);
-static void tower_interrupt_in_callback (struct urb *urb);
-static void tower_interrupt_out_callback (struct urb *urb);
+static void tower_check_for_read_packet(struct lego_usb_tower *dev);
+static void tower_interrupt_in_callback(struct urb *urb);
+static void tower_interrupt_out_callback(struct urb *urb);
-static int tower_probe (struct usb_interface *interface, const struct usb_device_id *id);
-static void tower_disconnect (struct usb_interface *interface);
+static int tower_probe(struct usb_interface *interface, const struct usb_device_id *id);
+static void tower_disconnect(struct usb_interface *interface);
/* file operations needed when we register this driver */
@@ -288,23 +286,23 @@ static inline void lego_usb_tower_debug_data(struct device *dev,
/**
* tower_delete
*/
-static inline void tower_delete (struct lego_usb_tower *dev)
+static inline void tower_delete(struct lego_usb_tower *dev)
{
/* free data structures */
usb_free_urb(dev->interrupt_in_urb);
usb_free_urb(dev->interrupt_out_urb);
- kfree (dev->read_buffer);
- kfree (dev->interrupt_in_buffer);
- kfree (dev->interrupt_out_buffer);
+ kfree(dev->read_buffer);
+ kfree(dev->interrupt_in_buffer);
+ kfree(dev->interrupt_out_buffer);
usb_put_dev(dev->udev);
- kfree (dev);
+ kfree(dev);
}
/**
* tower_open
*/
-static int tower_open (struct inode *inode, struct file *file)
+static int tower_open(struct inode *inode, struct file *file)
{
struct lego_usb_tower *dev = NULL;
int subminor;
@@ -314,7 +312,6 @@ static int tower_open (struct inode *inode, struct file *file)
int result;
reset_reply = kmalloc(sizeof(*reset_reply), GFP_KERNEL);
-
if (!reset_reply) {
retval = -ENOMEM;
goto exit;
@@ -323,8 +320,7 @@ static int tower_open (struct inode *inode, struct file *file)
nonseekable_open(inode, file);
subminor = iminor(inode);
- interface = usb_find_interface (&tower_driver, subminor);
-
+ interface = usb_find_interface(&tower_driver, subminor);
if (!interface) {
pr_err("error, can't find device for minor %d\n", subminor);
retval = -ENODEV;
@@ -351,15 +347,15 @@ static int tower_open (struct inode *inode, struct file *file)
}
/* reset the tower */
- result = usb_control_msg (dev->udev,
- usb_rcvctrlpipe(dev->udev, 0),
- LEGO_USB_TOWER_REQUEST_RESET,
- USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
- 0,
- 0,
- reset_reply,
- sizeof(*reset_reply),
- 1000);
+ result = usb_control_msg(dev->udev,
+ usb_rcvctrlpipe(dev->udev, 0),
+ LEGO_USB_TOWER_REQUEST_RESET,
+ USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
+ 0,
+ 0,
+ reset_reply,
+ sizeof(*reset_reply),
+ 1000);
if (result < 0) {
dev_err(&dev->udev->dev,
"LEGO USB Tower reset control request failed\n");
@@ -370,24 +366,22 @@ static int tower_open (struct inode *inode, struct file *file)
/* initialize in direction */
dev->read_buffer_length = 0;
dev->read_packet_length = 0;
- usb_fill_int_urb (dev->interrupt_in_urb,
- dev->udev,
- usb_rcvintpipe(dev->udev, dev->interrupt_in_endpoint->bEndpointAddress),
- dev->interrupt_in_buffer,
- usb_endpoint_maxp(dev->interrupt_in_endpoint),
- tower_interrupt_in_callback,
- dev,
- dev->interrupt_in_interval);
-
- dev->interrupt_in_running = 1;
+ usb_fill_int_urb(dev->interrupt_in_urb,
+ dev->udev,
+ usb_rcvintpipe(dev->udev, dev->interrupt_in_endpoint->bEndpointAddress),
+ dev->interrupt_in_buffer,
+ usb_endpoint_maxp(dev->interrupt_in_endpoint),
+ tower_interrupt_in_callback,
+ dev,
+ dev->interrupt_in_interval);
+
dev->interrupt_in_done = 0;
mb();
- retval = usb_submit_urb (dev->interrupt_in_urb, GFP_KERNEL);
+ retval = usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL);
if (retval) {
dev_err(&dev->udev->dev,
"Couldn't submit interrupt_in_urb %d\n", retval);
- dev->interrupt_in_running = 0;
goto unlock_exit;
}
@@ -407,13 +401,12 @@ exit:
/**
* tower_release
*/
-static int tower_release (struct inode *inode, struct file *file)
+static int tower_release(struct inode *inode, struct file *file)
{
struct lego_usb_tower *dev;
int retval = 0;
dev = file->private_data;
-
if (dev == NULL) {
retval = -ENODEV;
goto exit;
@@ -421,56 +414,32 @@ static int tower_release (struct inode *inode, struct file *file)
mutex_lock(&dev->lock);
- if (dev->open_count != 1) {
- dev_dbg(&dev->udev->dev, "%s: device not opened exactly once\n",
- __func__);
- retval = -ENODEV;
- goto unlock_exit;
- }
-
if (dev->disconnected) {
/* the device was unplugged before the file was released */
/* unlock here as tower_delete frees dev */
mutex_unlock(&dev->lock);
- tower_delete (dev);
+ tower_delete(dev);
goto exit;
}
/* wait until write transfer is finished */
if (dev->interrupt_out_busy) {
- wait_event_interruptible_timeout (dev->write_wait, !dev->interrupt_out_busy, 2 * HZ);
+ wait_event_interruptible_timeout(dev->write_wait, !dev->interrupt_out_busy,
+ 2 * HZ);
}
- tower_abort_transfers (dev);
+
+ /* shutdown transfers */
+ usb_kill_urb(dev->interrupt_in_urb);
+ usb_kill_urb(dev->interrupt_out_urb);
+
dev->open_count = 0;
-unlock_exit:
mutex_unlock(&dev->lock);
exit:
return retval;
}
-
-/**
- * tower_abort_transfers
- * aborts transfers and frees associated data structures
- */
-static void tower_abort_transfers (struct lego_usb_tower *dev)
-{
- if (dev == NULL)
- return;
-
- /* shutdown transfer */
- if (dev->interrupt_in_running) {
- dev->interrupt_in_running = 0;
- mb();
- usb_kill_urb(dev->interrupt_in_urb);
- }
- if (dev->interrupt_out_busy)
- usb_kill_urb(dev->interrupt_out_urb);
-}
-
-
/**
* tower_check_for_read_packet
*
@@ -479,23 +448,23 @@ static void tower_abort_transfers (struct lego_usb_tower *dev)
* until it has been there unchanged for at least
* dev->packet_timeout_jiffies, or until the buffer is full.
*/
-static void tower_check_for_read_packet (struct lego_usb_tower *dev)
+static void tower_check_for_read_packet(struct lego_usb_tower *dev)
{
- spin_lock_irq (&dev->read_buffer_lock);
+ spin_lock_irq(&dev->read_buffer_lock);
if (!packet_timeout
|| time_after(jiffies, dev->read_last_arrival + dev->packet_timeout_jiffies)
|| dev->read_buffer_length == read_buffer_size) {
dev->read_packet_length = dev->read_buffer_length;
}
dev->interrupt_in_done = 0;
- spin_unlock_irq (&dev->read_buffer_lock);
+ spin_unlock_irq(&dev->read_buffer_lock);
}
/**
* tower_poll
*/
-static __poll_t tower_poll (struct file *file, poll_table *wait)
+static __poll_t tower_poll(struct file *file, poll_table *wait)
{
struct lego_usb_tower *dev;
__poll_t mask = 0;
@@ -509,12 +478,10 @@ static __poll_t tower_poll (struct file *file, poll_table *wait)
poll_wait(file, &dev->write_wait, wait);
tower_check_for_read_packet(dev);
- if (dev->read_packet_length > 0) {
+ if (dev->read_packet_length > 0)
mask |= EPOLLIN | EPOLLRDNORM;
- }
- if (!dev->interrupt_out_busy) {
+ if (!dev->interrupt_out_busy)
mask |= EPOLLOUT | EPOLLWRNORM;
- }
return mask;
}
@@ -523,7 +490,7 @@ static __poll_t tower_poll (struct file *file, poll_table *wait)
/**
* tower_llseek
*/
-static loff_t tower_llseek (struct file *file, loff_t off, int whence)
+static loff_t tower_llseek(struct file *file, loff_t off, int whence)
{
return -ESPIPE; /* unseekable */
}
@@ -532,7 +499,7 @@ static loff_t tower_llseek (struct file *file, loff_t off, int whence)
/**
* tower_read
*/
-static ssize_t tower_read (struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+static ssize_t tower_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct lego_usb_tower *dev;
size_t bytes_to_read;
@@ -551,7 +518,6 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count,
/* verify that the device wasn't unplugged */
if (dev->disconnected) {
retval = -ENODEV;
- pr_err("No device or device unplugged %d\n", retval);
goto unlock_exit;
}
@@ -561,21 +527,19 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count,
goto unlock_exit;
}
- if (read_timeout) {
+ if (read_timeout)
timeout = jiffies + msecs_to_jiffies(read_timeout);
- }
/* wait for data */
- tower_check_for_read_packet (dev);
+ tower_check_for_read_packet(dev);
while (dev->read_packet_length == 0) {
if (file->f_flags & O_NONBLOCK) {
retval = -EAGAIN;
goto unlock_exit;
}
retval = wait_event_interruptible_timeout(dev->read_wait, dev->interrupt_in_done, dev->packet_timeout_jiffies);
- if (retval < 0) {
+ if (retval < 0)
goto unlock_exit;
- }
/* reset read timeout during read or write activity */
if (read_timeout
@@ -583,28 +547,27 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count,
timeout = jiffies + msecs_to_jiffies(read_timeout);
}
/* check for read timeout */
- if (read_timeout && time_after (jiffies, timeout)) {
+ if (read_timeout && time_after(jiffies, timeout)) {
retval = -ETIMEDOUT;
goto unlock_exit;
}
- tower_check_for_read_packet (dev);
+ tower_check_for_read_packet(dev);
}
/* copy the data from read_buffer into userspace */
bytes_to_read = min(count, dev->read_packet_length);
- if (copy_to_user (buffer, dev->read_buffer, bytes_to_read)) {
+ if (copy_to_user(buffer, dev->read_buffer, bytes_to_read)) {
retval = -EFAULT;
goto unlock_exit;
}
- spin_lock_irq (&dev->read_buffer_lock);
+ spin_lock_irq(&dev->read_buffer_lock);
dev->read_buffer_length -= bytes_to_read;
dev->read_packet_length -= bytes_to_read;
- for (i=0; i<dev->read_buffer_length; i++) {
+ for (i = 0; i < dev->read_buffer_length; i++)
dev->read_buffer[i] = dev->read_buffer[i+bytes_to_read];
- }
- spin_unlock_irq (&dev->read_buffer_lock);
+ spin_unlock_irq(&dev->read_buffer_lock);
retval = bytes_to_read;
@@ -620,7 +583,7 @@ exit:
/**
* tower_write
*/
-static ssize_t tower_write (struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+static ssize_t tower_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct lego_usb_tower *dev;
size_t bytes_to_write;
@@ -637,7 +600,6 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t
/* verify that the device wasn't unplugged */
if (dev->disconnected) {
retval = -ENODEV;
- pr_err("No device or device unplugged %d\n", retval);
goto unlock_exit;
}
@@ -653,10 +615,10 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t
retval = -EAGAIN;
goto unlock_exit;
}
- retval = wait_event_interruptible (dev->write_wait, !dev->interrupt_out_busy);
- if (retval) {
+ retval = wait_event_interruptible(dev->write_wait,
+ !dev->interrupt_out_busy);
+ if (retval)
goto unlock_exit;
- }
}
/* write the data into interrupt_out_buffer from userspace */
@@ -664,7 +626,7 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t
dev_dbg(&dev->udev->dev, "%s: count = %zd, bytes_to_write = %zd\n",
__func__, count, bytes_to_write);
- if (copy_from_user (dev->interrupt_out_buffer, buffer, bytes_to_write)) {
+ if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write)) {
retval = -EFAULT;
goto unlock_exit;
}
@@ -682,7 +644,7 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t
dev->interrupt_out_busy = 1;
wmb();
- retval = usb_submit_urb (dev->interrupt_out_urb, GFP_KERNEL);
+ retval = usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL);
if (retval) {
dev->interrupt_out_busy = 0;
dev_err(&dev->udev->dev,
@@ -703,7 +665,7 @@ exit:
/**
* tower_interrupt_in_callback
*/
-static void tower_interrupt_in_callback (struct urb *urb)
+static void tower_interrupt_in_callback(struct urb *urb)
{
struct lego_usb_tower *dev = urb->context;
int status = urb->status;
@@ -729,9 +691,9 @@ static void tower_interrupt_in_callback (struct urb *urb)
if (urb->actual_length > 0) {
spin_lock_irqsave(&dev->read_buffer_lock, flags);
if (dev->read_buffer_length + urb->actual_length < read_buffer_size) {
- memcpy (dev->read_buffer + dev->read_buffer_length,
- dev->interrupt_in_buffer,
- urb->actual_length);
+ memcpy(dev->read_buffer + dev->read_buffer_length,
+ dev->interrupt_in_buffer,
+ urb->actual_length);
dev->read_buffer_length += urb->actual_length;
dev->read_last_arrival = jiffies;
dev_dbg(&dev->udev->dev, "%s: received %d bytes\n",
@@ -744,25 +706,21 @@ static void tower_interrupt_in_callback (struct urb *urb)
}
resubmit:
- /* resubmit if we're still running */
- if (dev->interrupt_in_running) {
- retval = usb_submit_urb (dev->interrupt_in_urb, GFP_ATOMIC);
- if (retval)
- dev_err(&dev->udev->dev,
- "%s: usb_submit_urb failed (%d)\n",
- __func__, retval);
+ retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);
+ if (retval) {
+ dev_err(&dev->udev->dev, "%s: usb_submit_urb failed (%d)\n",
+ __func__, retval);
}
-
exit:
dev->interrupt_in_done = 1;
- wake_up_interruptible (&dev->read_wait);
+ wake_up_interruptible(&dev->read_wait);
}
/**
* tower_interrupt_out_callback
*/
-static void tower_interrupt_out_callback (struct urb *urb)
+static void tower_interrupt_out_callback(struct urb *urb)
{
struct lego_usb_tower *dev = urb->context;
int status = urb->status;
@@ -790,48 +748,27 @@ static void tower_interrupt_out_callback (struct urb *urb)
* Called by the usb core when a new device is connected that it thinks
* this driver might be interested in.
*/
-static int tower_probe (struct usb_interface *interface, const struct usb_device_id *id)
+static int tower_probe(struct usb_interface *interface, const struct usb_device_id *id)
{
struct device *idev = &interface->dev;
struct usb_device *udev = interface_to_usbdev(interface);
- struct lego_usb_tower *dev = NULL;
+ struct lego_usb_tower *dev;
struct tower_get_version_reply *get_version_reply = NULL;
int retval = -ENOMEM;
int result;
/* allocate memory for our device state and initialize it */
-
- dev = kmalloc (sizeof(struct lego_usb_tower), GFP_KERNEL);
-
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
goto exit;
mutex_init(&dev->lock);
-
dev->udev = usb_get_dev(udev);
- dev->open_count = 0;
- dev->disconnected = 0;
-
- dev->read_buffer = NULL;
- dev->read_buffer_length = 0;
- dev->read_packet_length = 0;
- spin_lock_init (&dev->read_buffer_lock);
+ spin_lock_init(&dev->read_buffer_lock);
dev->packet_timeout_jiffies = msecs_to_jiffies(packet_timeout);
dev->read_last_arrival = jiffies;
-
- init_waitqueue_head (&dev->read_wait);
- init_waitqueue_head (&dev->write_wait);
-
- dev->interrupt_in_buffer = NULL;
- dev->interrupt_in_endpoint = NULL;
- dev->interrupt_in_urb = NULL;
- dev->interrupt_in_running = 0;
- dev->interrupt_in_done = 0;
-
- dev->interrupt_out_buffer = NULL;
- dev->interrupt_out_endpoint = NULL;
- dev->interrupt_out_urb = NULL;
- dev->interrupt_out_busy = 0;
+ init_waitqueue_head(&dev->read_wait);
+ init_waitqueue_head(&dev->write_wait);
result = usb_find_common_endpoints_reverse(interface->cur_altsetting,
NULL, NULL,
@@ -843,16 +780,16 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
goto error;
}
- dev->read_buffer = kmalloc (read_buffer_size, GFP_KERNEL);
+ dev->read_buffer = kmalloc(read_buffer_size, GFP_KERNEL);
if (!dev->read_buffer)
goto error;
- dev->interrupt_in_buffer = kmalloc (usb_endpoint_maxp(dev->interrupt_in_endpoint), GFP_KERNEL);
+ dev->interrupt_in_buffer = kmalloc(usb_endpoint_maxp(dev->interrupt_in_endpoint), GFP_KERNEL);
if (!dev->interrupt_in_buffer)
goto error;
dev->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->interrupt_in_urb)
goto error;
- dev->interrupt_out_buffer = kmalloc (write_buffer_size, GFP_KERNEL);
+ dev->interrupt_out_buffer = kmalloc(write_buffer_size, GFP_KERNEL);
if (!dev->interrupt_out_buffer)
goto error;
dev->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
@@ -862,22 +799,21 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
dev->interrupt_out_interval = interrupt_out_interval ? interrupt_out_interval : dev->interrupt_out_endpoint->bInterval;
get_version_reply = kmalloc(sizeof(*get_version_reply), GFP_KERNEL);
-
if (!get_version_reply) {
retval = -ENOMEM;
goto error;
}
/* get the firmware version and log it */
- result = usb_control_msg (udev,
- usb_rcvctrlpipe(udev, 0),
- LEGO_USB_TOWER_REQUEST_GET_VERSION,
- USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
- 0,
- 0,
- get_version_reply,
- sizeof(*get_version_reply),
- 1000);
+ result = usb_control_msg(udev,
+ usb_rcvctrlpipe(udev, 0),
+ LEGO_USB_TOWER_REQUEST_GET_VERSION,
+ USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
+ 0,
+ 0,
+ get_version_reply,
+ sizeof(*get_version_reply),
+ 1000);
if (result != sizeof(*get_version_reply)) {
if (result >= 0)
result = -EIO;
@@ -892,10 +828,9 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
le16_to_cpu(get_version_reply->build_no));
/* we can register the device now, as it is ready */
- usb_set_intfdata (interface, dev);
-
- retval = usb_register_dev (interface, &tower_class);
+ usb_set_intfdata(interface, dev);
+ retval = usb_register_dev(interface, &tower_class);
if (retval) {
/* something prevented us from registering this driver */
dev_err(idev, "Not able to get a minor for this device.\n");
@@ -924,17 +859,17 @@ error:
*
* Called by the usb core when the device is removed from the system.
*/
-static void tower_disconnect (struct usb_interface *interface)
+static void tower_disconnect(struct usb_interface *interface)
{
struct lego_usb_tower *dev;
int minor;
- dev = usb_get_intfdata (interface);
+ dev = usb_get_intfdata(interface);
minor = dev->minor;
/* give back our minor and prevent further open() */
- usb_deregister_dev (interface, &tower_class);
+ usb_deregister_dev(interface, &tower_class);
/* stop I/O */
usb_poison_urb(dev->interrupt_in_urb);
@@ -945,7 +880,7 @@ static void tower_disconnect (struct usb_interface *interface)
/* if the device is not opened, then we clean up right now */
if (!dev->open_count) {
mutex_unlock(&dev->lock);
- tower_delete (dev);
+ tower_delete(dev);
} else {
dev->disconnected = 1;
/* wake up pollers */
@@ -962,6 +897,4 @@ module_usb_driver(tower_driver);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
-#ifdef MODULE_LICENSE
MODULE_LICENSE("GPL");
-#endif
diff --git a/drivers/usb/misc/sisusbvga/Kconfig b/drivers/usb/misc/sisusbvga/Kconfig
index 9b632ab24f03..c16121276a21 100644
--- a/drivers/usb/misc/sisusbvga/Kconfig
+++ b/drivers/usb/misc/sisusbvga/Kconfig
@@ -4,7 +4,7 @@ config USB_SISUSBVGA
tristate "USB 2.0 SVGA dongle support (Net2280/SiS315)"
depends on (USB_MUSB_HDRC || USB_EHCI_HCD)
select FONT_SUPPORT if USB_SISUSBVGA_CON
- ---help---
+ ---help---
Say Y here if you intend to attach a USB2VGA dongle based on a
Net2280 and a SiS315 chip.
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 6ca9111d150a..10c9e7f6273e 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/nls.h>
#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
#include <linux/slab.h>
/* Internal Register Set Addresses & Default Values acc. to DS00001692C */
@@ -26,10 +27,6 @@
#define USB251XB_ADDR_PRODUCT_ID_LSB 0x02
#define USB251XB_ADDR_PRODUCT_ID_MSB 0x03
-#define USB251XB_DEF_PRODUCT_ID_12 0x2512 /* USB2512B/12Bi */
-#define USB251XB_DEF_PRODUCT_ID_13 0x2513 /* USB2513B/13Bi */
-#define USB251XB_DEF_PRODUCT_ID_14 0x2514 /* USB2514B/14Bi */
-#define USB251XB_DEF_PRODUCT_ID_17 0x2517 /* USB2517/17i */
#define USB251XB_ADDR_DEVICE_ID_LSB 0x04
#define USB251XB_ADDR_DEVICE_ID_MSB 0x05
@@ -74,7 +71,6 @@
#define USB251XB_ADDR_PRODUCT_STRING_LEN 0x14
#define USB251XB_ADDR_PRODUCT_STRING 0x54
-#define USB251XB_DEF_PRODUCT_STRING "USB251xB/xBi/7i"
#define USB251XB_ADDR_SERIAL_STRING_LEN 0x15
#define USB251XB_ADDR_SERIAL_STRING 0x92
@@ -116,6 +112,7 @@
struct usb251xb {
struct device *dev;
struct i2c_client *i2c;
+ struct regulator *vdd;
u8 skip_config;
struct gpio_desc *gpio_reset;
u16 vendor_id;
@@ -159,6 +156,14 @@ struct usb251xb_data {
char product_str[USB251XB_STRING_BUFSIZE / 2]; /* ASCII string */
};
+static const struct usb251xb_data usb2422_data = {
+ .product_id = 0x2422,
+ .port_cnt = 2,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2422",
+};
+
static const struct usb251xb_data usb2512b_data = {
.product_id = 0x2512,
.port_cnt = 2,
@@ -261,20 +266,19 @@ static int usb251x_check_gpio_chip(struct usb251xb *hub)
}
#endif
-static void usb251xb_reset(struct usb251xb *hub, int state)
+static void usb251xb_reset(struct usb251xb *hub)
{
if (!hub->gpio_reset)
return;
i2c_lock_bus(hub->i2c->adapter, I2C_LOCK_SEGMENT);
- gpiod_set_value_cansleep(hub->gpio_reset, state);
+ gpiod_set_value_cansleep(hub->gpio_reset, 1);
+ usleep_range(1, 10); /* >=1us RESET_N asserted */
+ gpiod_set_value_cansleep(hub->gpio_reset, 0);
/* wait for hub recovery/stabilization */
- if (!state)
- usleep_range(500, 750); /* >=500us at power on */
- else
- usleep_range(1, 10); /* >=1us at power down */
+ usleep_range(500, 750); /* >=500us after RESET_N deasserted */
i2c_unlock_bus(hub->i2c->adapter, I2C_LOCK_SEGMENT);
}
@@ -292,7 +296,7 @@ static int usb251xb_connect(struct usb251xb *hub)
i2c_wb[0] = 0x01;
i2c_wb[1] = USB251XB_STATUS_COMMAND_ATTACH;
- usb251xb_reset(hub, 0);
+ usb251xb_reset(hub);
err = i2c_smbus_write_i2c_block_data(hub->i2c,
USB251XB_ADDR_STATUS_COMMAND, 2, i2c_wb);
@@ -342,7 +346,7 @@ static int usb251xb_connect(struct usb251xb *hub)
i2c_wb[USB251XB_ADDR_PORT_MAP_7] = hub->port_map7;
i2c_wb[USB251XB_ADDR_STATUS_COMMAND] = USB251XB_STATUS_COMMAND_ATTACH;
- usb251xb_reset(hub, 0);
+ usb251xb_reset(hub);
/* write registers */
for (i = 0; i < (USB251XB_I2C_REG_SZ / USB251XB_I2C_WRITE_SZ); i++) {
@@ -420,6 +424,10 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
return err;
}
+ hub->vdd = devm_regulator_get(dev, "vdd");
+ if (IS_ERR(hub->vdd))
+ return PTR_ERR(hub->vdd);
+
if (of_property_read_u16_array(np, "vendor-id", &hub->vendor_id, 1))
hub->vendor_id = USB251XB_DEF_VENDOR_ID;
@@ -593,6 +601,9 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
static const struct of_device_id usb251xb_of_match[] = {
{
+ .compatible = "microchip,usb2422",
+ .data = &usb2422_data,
+ }, {
.compatible = "microchip,usb2512b",
.data = &usb2512b_data,
}, {
@@ -665,6 +676,10 @@ static int usb251xb_probe(struct usb251xb *hub)
if (err)
return err;
+ err = regulator_enable(hub->vdd);
+ if (err)
+ return err;
+
err = usb251xb_connect(hub);
if (err) {
dev_err(dev, "Failed to connect hub (%d)\n", err);
@@ -692,7 +707,31 @@ static int usb251xb_i2c_probe(struct i2c_client *i2c,
return usb251xb_probe(hub);
}
+static int __maybe_unused usb251xb_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct usb251xb *hub = i2c_get_clientdata(client);
+
+ return regulator_disable(hub->vdd);
+}
+
+static int __maybe_unused usb251xb_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct usb251xb *hub = i2c_get_clientdata(client);
+ int err;
+
+ err = regulator_enable(hub->vdd);
+ if (err)
+ return err;
+
+ return usb251xb_connect(hub);
+}
+
+static SIMPLE_DEV_PM_OPS(usb251xb_pm_ops, usb251xb_suspend, usb251xb_resume);
+
static const struct i2c_device_id usb251xb_id[] = {
+ { "usb2422", 0 },
{ "usb2512b", 0 },
{ "usb2512bi", 0 },
{ "usb2513b", 0 },
@@ -709,6 +748,7 @@ static struct i2c_driver usb251xb_i2c_driver = {
.driver = {
.name = DRIVER_NAME,
.of_match_table = of_match_ptr(usb251xb_of_match),
+ .pm = &usb251xb_pm_ops,
},
.probe = usb251xb_i2c_probe,
.id_table = usb251xb_id,
diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c
index 4da216c99726..2be182bd793a 100644
--- a/drivers/usb/mtu3/mtu3_gadget_ep0.c
+++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c
@@ -153,6 +153,15 @@ static void ep0_stall_set(struct mtu3_ep *mep0, bool set, u32 pktrdy)
set ? "SEND" : "CLEAR", decode_ep0_state(mtu));
}
+static void ep0_do_status_stage(struct mtu3 *mtu)
+{
+ void __iomem *mbase = mtu->mac_base;
+ u32 value;
+
+ value = mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS;
+ mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND);
+}
+
static int ep0_queue(struct mtu3_ep *mep0, struct mtu3_request *mreq);
static void ep0_dummy_complete(struct usb_ep *ep, struct usb_request *req)
@@ -297,8 +306,7 @@ static int handle_test_mode(struct mtu3 *mtu, struct usb_ctrlrequest *setup)
ep0_load_test_packet(mtu);
/* send status before entering test mode. */
- value = mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS;
- mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND);
+ ep0_do_status_stage(mtu);
/* wait for ACK status sent by host */
readl_poll_timeout_atomic(mbase + U3D_EP0CSR, value,
@@ -632,7 +640,6 @@ __acquires(mtu->lock)
{
struct usb_ctrlrequest setup;
struct mtu3_request *mreq;
- void __iomem *mbase = mtu->mac_base;
int handled = 0;
ep0_read_setup(mtu, &setup);
@@ -664,14 +671,19 @@ finish:
if (mtu->test_mode) {
; /* nothing to do */
} else if (handled == USB_GADGET_DELAYED_STATUS) {
- /* handle the delay STATUS phase till receive ep_queue on ep0 */
- mtu->delayed_status = true;
- } else if (le16_to_cpu(setup.wLength) == 0) { /* no data stage */
- mtu3_writel(mbase, U3D_EP0CSR,
- (mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS)
- | EP0_SETUPPKTRDY | EP0_DATAEND);
+ mreq = next_ep0_request(mtu);
+ if (mreq) {
+ /* already asked us to continue delayed status */
+ ep0_do_status_stage(mtu);
+ ep0_req_giveback(mtu, &mreq->request);
+ } else {
+ /* do delayed STATUS stage till receive ep0_queue */
+ mtu->delayed_status = true;
+ }
+ } else if (le16_to_cpu(setup.wLength) == 0) { /* no data stage */
+ ep0_do_status_stage(mtu);
/* complete zlp request directly */
mreq = next_ep0_request(mtu);
if (mreq && !mreq->request.length)
@@ -802,12 +814,9 @@ static int ep0_queue(struct mtu3_ep *mep, struct mtu3_request *mreq)
}
if (mtu->delayed_status) {
- u32 csr;
mtu->delayed_status = false;
- csr = mtu3_readl(mtu->mac_base, U3D_EP0CSR) & EP0_W1C_BITS;
- csr |= EP0_SETUPPKTRDY | EP0_DATAEND;
- mtu3_writel(mtu->mac_base, U3D_EP0CSR, csr);
+ ep0_do_status_stage(mtu);
/* needn't giveback the request for handling delay STATUS */
return 0;
}
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index bd63450af76a..15cca912c53e 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2431,14 +2431,12 @@ static int musb_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int irq = platform_get_irq_byname(pdev, "mc");
- struct resource *iomem;
void __iomem *base;
if (irq <= 0)
return -ENODEV;
- iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- base = devm_ioremap_resource(dev, iomem);
+ base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index f42858e2b54c..7b6281ab62ed 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -325,7 +325,7 @@ void musb_init_debugfs(struct musb *musb)
{
struct dentry *root;
- root = debugfs_create_dir(dev_name(musb->controller), NULL);
+ root = debugfs_create_dir(dev_name(musb->controller), usb_debug_root);
musb->debugfs_root = root;
debugfs_create_file("regdump", S_IRUGO, root, musb, &musb_regdump_fops);
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 327d4f7baaf7..88923175f71e 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -411,7 +411,7 @@ static int dsps_musb_dbg_init(struct musb *musb, struct dsps_glue *glue)
char buf[128];
sprintf(buf, "%s.dsps", dev_name(musb->controller));
- root = debugfs_create_dir(buf, NULL);
+ root = debugfs_create_dir(buf, usb_debug_root);
glue->dbgfs_root = root;
glue->regset.regs = dsps_musb_regs;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index ffe462a657b1..f62ffaede1ab 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1085,7 +1085,6 @@ static int musb_gadget_disable(struct usb_ep *ep)
u8 epnum;
struct musb_ep *musb_ep;
void __iomem *epio;
- int status = 0;
musb_ep = to_musb_ep(ep);
musb = musb_ep->musb;
@@ -1118,7 +1117,7 @@ static int musb_gadget_disable(struct usb_ep *ep)
musb_dbg(musb, "%s", musb_ep->end_point.name);
- return status;
+ return 0;
}
/*
@@ -1316,7 +1315,7 @@ done:
}
/*
- * Set or clear the halt bit of an endpoint. A halted enpoint won't tx/rx any
+ * Set or clear the halt bit of an endpoint. A halted endpoint won't tx/rx any
* data but will queue requests.
*
* exported to ep0 code
diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c
index 19871266312d..110e6e9ad621 100644
--- a/drivers/usb/phy/phy-keystone.c
+++ b/drivers/usb/phy/phy-keystone.c
@@ -66,15 +66,13 @@ static int keystone_usbphy_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct keystone_usbphy *k_phy;
- struct resource *res;
int ret;
k_phy = devm_kzalloc(dev, sizeof(*k_phy), GFP_KERNEL);
if (!k_phy)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- k_phy->phy_ctrl = devm_ioremap_resource(dev, res);
+ k_phy->phy_ctrl = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(k_phy->phy_ctrl))
return PTR_ERR(k_phy->phy_ctrl);
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index 70b8c8248caf..67b39dc62b37 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -710,7 +710,6 @@ static enum usb_charger_type mxs_phy_charger_detect(struct usb_phy *phy)
static int mxs_phy_probe(struct platform_device *pdev)
{
- struct resource *res;
void __iomem *base;
struct clk *clk;
struct mxs_phy *mxs_phy;
@@ -723,8 +722,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
if (!of_id)
return -ENODEV;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- base = devm_ioremap_resource(&pdev->dev, res);
+ base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index a3c30b609433..d438b7871446 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -590,7 +590,7 @@ static int usbhs_probe(struct platform_device *pdev)
{
const struct renesas_usbhs_platform_info *info;
struct usbhs_priv *priv;
- struct resource *res, *irq_res;
+ struct resource *irq_res;
struct device *dev = &pdev->dev;
int ret, gpio;
u32 tmp;
@@ -619,8 +619,7 @@ static int usbhs_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->base = devm_ioremap_resource(&pdev->dev, res);
+ priv->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h
index 0824099b905e..ef1735d014da 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -161,11 +161,12 @@ struct usbhs_priv;
#define VBSTS (1 << 7) /* VBUS_0 and VBUSIN_0 Input Status */
#define VALID (1 << 3) /* USB Request Receive */
-#define DVSQ_MASK (0x3 << 4) /* Device State */
+#define DVSQ_MASK (0x7 << 4) /* Device State */
#define POWER_STATE (0 << 4)
#define DEFAULT_STATE (1 << 4)
#define ADDRESS_STATE (2 << 4)
#define CONFIGURATION_STATE (3 << 4)
+#define SUSPENDED_STATE (4 << 4)
#define CTSQ_MASK (0x7) /* Control Transfer Stage */
#define IDLE_SETUP_STAGE 0 /* Idle stage or setup stage */
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 86637cd066cf..01c6a48c41bc 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -1273,11 +1273,11 @@ static void usbhsf_dma_init_dt(struct device *dev, struct usbhs_fifo *fifo,
*/
snprintf(name, sizeof(name), "ch%d", channel);
if (channel & 1) {
- fifo->tx_chan = dma_request_slave_channel_reason(dev, name);
+ fifo->tx_chan = dma_request_chan(dev, name);
if (IS_ERR(fifo->tx_chan))
fifo->tx_chan = NULL;
} else {
- fifo->rx_chan = dma_request_slave_channel_reason(dev, name);
+ fifo->rx_chan = dma_request_chan(dev, name);
if (IS_ERR(fifo->rx_chan))
fifo->rx_chan = NULL;
}
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 10fc65596014..b98112cefaa4 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -169,17 +169,7 @@ void usbhs_mod_remove(struct usbhs_priv *priv)
*/
int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state)
{
- int state = irq_state->intsts0 & DVSQ_MASK;
-
- switch (state) {
- case POWER_STATE:
- case DEFAULT_STATE:
- case ADDRESS_STATE:
- case CONFIGURATION_STATE:
- return state;
- }
-
- return -EIO;
+ return (int)irq_state->intsts0 & DVSQ_MASK;
}
int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state)
@@ -348,10 +338,6 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
* usbhs_interrupt
*/
- /*
- * it don't enable DVSE (intenb0) here
- * but "mod->irq_dev_state" will be called.
- */
if (info->irq_vbus)
intenb0 |= VBSE;
@@ -362,6 +348,9 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
if (mod->irq_ctrl_stage)
intenb0 |= CTRE;
+ if (mod->irq_dev_state)
+ intenb0 |= DVSE;
+
if (mod->irq_empty && mod->irq_bempsts) {
usbhs_write(priv, BEMPENB, mod->irq_bempsts);
intenb0 |= BEMPE;
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index cd38d74b3223..53489cafecc1 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -457,12 +457,18 @@ static int usbhsg_irq_dev_state(struct usbhs_priv *priv,
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+ int state = usbhs_status_get_device_state(irq_state);
gpriv->gadget.speed = usbhs_bus_get_speed(priv);
- dev_dbg(dev, "state = %x : speed : %d\n",
- usbhs_status_get_device_state(irq_state),
- gpriv->gadget.speed);
+ dev_dbg(dev, "state = %x : speed : %d\n", state, gpriv->gadget.speed);
+
+ if (gpriv->gadget.speed != USB_SPEED_UNKNOWN &&
+ (state & SUSPENDED_STATE)) {
+ if (gpriv->driver && gpriv->driver->suspend)
+ gpriv->driver->suspend(&gpriv->gadget);
+ usb_gadget_set_state(&gpriv->gadget, USB_STATE_SUSPENDED);
+ }
return 0;
}
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index 94b4e7db2b94..8273126ffdf4 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -175,6 +175,27 @@ void usb_role_switch_put(struct usb_role_switch *sw)
}
EXPORT_SYMBOL_GPL(usb_role_switch_put);
+/**
+ * usb_role_switch_find_by_fwnode - Find USB role switch with its fwnode
+ * @fwnode: fwnode of the USB Role Switch
+ *
+ * Finds and returns role switch with @fwnode. The reference count for the
+ * found switch is incremented.
+ */
+struct usb_role_switch *
+usb_role_switch_find_by_fwnode(const struct fwnode_handle *fwnode)
+{
+ struct device *dev;
+
+ if (!fwnode)
+ return NULL;
+
+ dev = class_find_device_by_fwnode(role_class, fwnode);
+
+ return dev ? to_role_switch(dev) : NULL;
+}
+EXPORT_SYMBOL_GPL(usb_role_switch_find_by_fwnode);
+
static umode_t
usb_role_switch_is_visible(struct kobject *kobj, struct attribute *attr, int n)
{
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 67279c6bce33..ed4a18b435a0 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -269,19 +269,19 @@ config USB_SERIAL_F8153X
config USB_SERIAL_GARMIN
- tristate "USB Garmin GPS driver"
- help
- Say Y here if you want to connect to your Garmin GPS.
- Should work with most Garmin GPS devices which have a native USB port.
+ tristate "USB Garmin GPS driver"
+ help
+ Say Y here if you want to connect to your Garmin GPS.
+ Should work with most Garmin GPS devices which have a native USB port.
- See <http://sourceforge.net/projects/garmin-gps> for the latest
- version of the driver.
+ See <http://sourceforge.net/projects/garmin-gps> for the latest
+ version of the driver.
- To compile this driver as a module, choose M here: the
- module will be called garmin_gps.
+ To compile this driver as a module, choose M here: the
+ module will be called garmin_gps.
config USB_SERIAL_IPW
- tristate "USB IPWireless (3G UMTS TDD) Driver"
+ tristate "USB IPWireless (3G UMTS TDD) Driver"
select USB_SERIAL_WWAN
help
Say Y here if you want to use a IPWireless USB modem such as
@@ -341,20 +341,20 @@ config USB_SERIAL_KLSI
module will be called kl5kusb105.
config USB_SERIAL_KOBIL_SCT
- tristate "USB KOBIL chipcard reader"
- ---help---
- Say Y here if you want to use one of the following KOBIL USB chipcard
- readers:
-
- - USB TWIN
- - KAAN Standard Plus
- - KAAN SIM
- - SecOVID Reader Plus
- - B1 Professional
- - KAAN Professional
-
- Note that you need a current CT-API.
- To compile this driver as a module, choose M here: the
+ tristate "USB KOBIL chipcard reader"
+ ---help---
+ Say Y here if you want to use one of the following KOBIL USB chipcard
+ readers:
+
+ - USB TWIN
+ - KAAN Standard Plus
+ - KAAN SIM
+ - SecOVID Reader Plus
+ - B1 Professional
+ - KAAN Professional
+
+ Note that you need a current CT-API.
+ To compile this driver as a module, choose M here: the
module will be called kobil_sct.
config USB_SERIAL_MCT_U232
@@ -458,7 +458,7 @@ config USB_SERIAL_OTI6858
tristate "USB Ours Technology Inc. OTi-6858 USB To RS232 Bridge Controller"
help
Say Y here if you want to use the OTi-6858 single port USB to serial
- converter device.
+ converter device.
To compile this driver as a module, choose M here: the
module will be called oti6858.
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 3bb1fff02bed..df582fe855f0 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -48,12 +48,6 @@
#define CH341_BIT_DCD 0x08
#define CH341_BITS_MODEM_STAT 0x0f /* all bits */
-/*******************************/
-/* baudrate calculation factor */
-/*******************************/
-#define CH341_BAUDBASE_FACTOR 1532620800
-#define CH341_BAUDBASE_DIVMAX 3
-
/* Break support - the information used to implement this was gleaned from
* the Net/FreeBSD uchcom.c driver by Takanori Watanabe. Domo arigato.
*/
@@ -144,37 +138,96 @@ static int ch341_control_in(struct usb_device *dev,
return 0;
}
+#define CH341_CLKRATE 48000000
+#define CH341_CLK_DIV(ps, fact) (1 << (12 - 3 * (ps) - (fact)))
+#define CH341_MIN_RATE(ps) (CH341_CLKRATE / (CH341_CLK_DIV((ps), 1) * 512))
+
+static const speed_t ch341_min_rates[] = {
+ CH341_MIN_RATE(0),
+ CH341_MIN_RATE(1),
+ CH341_MIN_RATE(2),
+ CH341_MIN_RATE(3),
+};
+
+/*
+ * The device line speed is given by the following equation:
+ *
+ * baudrate = 48000000 / (2^(12 - 3 * ps - fact) * div), where
+ *
+ * 0 <= ps <= 3,
+ * 0 <= fact <= 1,
+ * 2 <= div <= 256 if fact = 0, or
+ * 9 <= div <= 256 if fact = 1
+ */
+static int ch341_get_divisor(speed_t speed)
+{
+ unsigned int fact, div, clk_div;
+ int ps;
+
+ /*
+ * Clamp to supported range, this makes the (ps < 0) and (div < 2)
+ * sanity checks below redundant.
+ */
+ speed = clamp(speed, 46U, 3000000U);
+
+ /*
+ * Start with highest possible base clock (fact = 1) that will give a
+ * divisor strictly less than 512.
+ */
+ fact = 1;
+ for (ps = 3; ps >= 0; ps--) {
+ if (speed > ch341_min_rates[ps])
+ break;
+ }
+
+ if (ps < 0)
+ return -EINVAL;
+
+ /* Determine corresponding divisor, rounding down. */
+ clk_div = CH341_CLK_DIV(ps, fact);
+ div = CH341_CLKRATE / (clk_div * speed);
+
+ /* Halve base clock (fact = 0) if required. */
+ if (div < 9 || div > 255) {
+ div /= 2;
+ clk_div *= 2;
+ fact = 0;
+ }
+
+ if (div < 2)
+ return -EINVAL;
+
+ /*
+ * Pick next divisor if resulting rate is closer to the requested one,
+ * scale up to avoid rounding errors on low rates.
+ */
+ if (16 * CH341_CLKRATE / (clk_div * div) - 16 * speed >=
+ 16 * speed - 16 * CH341_CLKRATE / (clk_div * (div + 1)))
+ div++;
+
+ return (0x100 - div) << 8 | fact << 2 | ps;
+}
+
static int ch341_set_baudrate_lcr(struct usb_device *dev,
struct ch341_private *priv, u8 lcr)
{
- short a;
+ int val;
int r;
- unsigned long factor;
- short divisor;
if (!priv->baud_rate)
return -EINVAL;
- factor = (CH341_BAUDBASE_FACTOR / priv->baud_rate);
- divisor = CH341_BAUDBASE_DIVMAX;
-
- while ((factor > 0xfff0) && divisor) {
- factor >>= 3;
- divisor--;
- }
- if (factor > 0xfff0)
+ val = ch341_get_divisor(priv->baud_rate);
+ if (val < 0)
return -EINVAL;
- factor = 0x10000 - factor;
- a = (factor & 0xff00) | divisor;
-
/*
* CH341A buffers data until a full endpoint-size packet (32 bytes)
* has been received unless bit 7 is set.
*/
- a |= BIT(7);
+ val |= BIT(7);
- r = ch341_control_out(dev, CH341_REQ_WRITE_REG, 0x1312, a);
+ r = ch341_control_out(dev, CH341_REQ_WRITE_REG, 0x1312, val);
if (r)
return r;
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 979bef9bfb6b..f5143eedbc48 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -125,6 +125,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
{ USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
{ USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */
+ { USB_DEVICE(0x10C4, 0x83AA) }, /* Mark-10 Digital Force Gauge */
{ USB_DEVICE(0x10C4, 0x83D8) }, /* DekTec DTA Plus VHF/UHF Booster/Attenuator */
{ USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */
{ USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 25e81faf4c24..9ad44a96dfe3 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1033,6 +1033,9 @@ static const struct usb_device_id id_table_combined[] = {
/* Sienna devices */
{ USB_DEVICE(FTDI_VID, FTDI_SIENNA_PID) },
{ USB_DEVICE(ECHELON_VID, ECHELON_U20_PID) },
+ /* U-Blox devices */
+ { USB_DEVICE(UBLOX_VID, UBLOX_C099F9P_ZED_PID) },
+ { USB_DEVICE(UBLOX_VID, UBLOX_C099F9P_ODIN_PID) },
{ } /* Terminating entry */
};
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 22d66217cb41..e8373528264c 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -1558,3 +1558,10 @@
*/
#define UNJO_VID 0x22B7
#define UNJO_ISODEBUG_V1_PID 0x150D
+
+/*
+ * U-Blox products (http://www.u-blox.com).
+ */
+#define UBLOX_VID 0x1546
+#define UBLOX_C099F9P_ZED_PID 0x0502
+#define UBLOX_C099F9P_ODIN_PID 0x0503
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 18110225d506..2ec4eeacebc7 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1833,10 +1833,6 @@ static int mos7720_startup(struct usb_serial *serial)
product = le16_to_cpu(serial->dev->descriptor.idProduct);
dev = serial->dev;
- /* setting configuration feature to one */
- usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
- (__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000);
-
if (product == MOSCHIP_DEVICE_ID_7715) {
struct urb *urb = serial->port[0]->interrupt_in_urb;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index a698d46ba773..23f91d658cb4 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -89,17 +89,10 @@
/* For higher baud Rates use TIOCEXBAUD */
#define TIOCEXBAUD 0x5462
-/* vendor id and device id defines */
-
-/* The native mos7840/7820 component */
-#define USB_VENDOR_ID_MOSCHIP 0x9710
-#define MOSCHIP_DEVICE_ID_7840 0x7840
-#define MOSCHIP_DEVICE_ID_7843 0x7843
-#define MOSCHIP_DEVICE_ID_7820 0x7820
-#define MOSCHIP_DEVICE_ID_7810 0x7810
-/* The native component can have its vendor/device id's overridden
- * in vendor-specific implementations. Such devices can be handled
- * by making a change here, in id_table.
+/*
+ * Vendor id and device id defines
+ *
+ * NOTE: Do not add new defines, add entries directly to the id_table instead.
*/
#define USB_VENDOR_ID_BANDB 0x0856
#define BANDB_DEVICE_ID_USO9ML2_2 0xAC22
@@ -116,14 +109,6 @@
#define BANDB_DEVICE_ID_USOPTL4_4P 0xBC03
#define BANDB_DEVICE_ID_USOPTL2_4 0xAC24
-/* This driver also supports
- * ATEN UC2324 device using Moschip MCS7840
- * ATEN UC2322 device using Moschip MCS7820
- */
-#define USB_VENDOR_ID_ATENINTL 0x0557
-#define ATENINTL_DEVICE_ID_UC2324 0x2011
-#define ATENINTL_DEVICE_ID_UC2322 0x7820
-
/* Interrupt Routine Defines */
#define SERIAL_IIR_RLS 0x06
@@ -171,30 +156,37 @@
#define LED_OFF_MS 500
enum mos7840_flag {
- MOS7840_FLAG_CTRL_BUSY,
MOS7840_FLAG_LED_BUSY,
};
+#define MCS_PORT_MASK GENMASK(2, 0)
+#define MCS_PORTS(nr) ((nr) & MCS_PORT_MASK)
+#define MCS_LED BIT(3)
+
+#define MCS_DEVICE(vid, pid, flags) \
+ USB_DEVICE((vid), (pid)), .driver_info = (flags)
+
static const struct usb_device_id id_table[] = {
- {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
- {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7843)},
- {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
- {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7810)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2P)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4P)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_2)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_4)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_2)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_4)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2P)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4P)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4)},
- {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)},
- {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)},
+ { MCS_DEVICE(0x0557, 0x2011, MCS_PORTS(4)) }, /* ATEN UC2324 */
+ { MCS_DEVICE(0x0557, 0x7820, MCS_PORTS(2)) }, /* ATEN UC2322 */
+ { MCS_DEVICE(0x110a, 0x2210, MCS_PORTS(2)) }, /* Moxa UPort 2210 */
+ { MCS_DEVICE(0x9710, 0x7810, MCS_PORTS(1) | MCS_LED) }, /* ASIX MCS7810 */
+ { MCS_DEVICE(0x9710, 0x7820, MCS_PORTS(2)) }, /* MosChip MCS7820 */
+ { MCS_DEVICE(0x9710, 0x7840, MCS_PORTS(4)) }, /* MosChip MCS7840 */
+ { MCS_DEVICE(0x9710, 0x7843, MCS_PORTS(3)) }, /* ASIX MCS7840 3 port */
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2P) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4P) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_2) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_4) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_2) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_4) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2P) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4P) },
+ { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4) },
{} /* terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
@@ -206,19 +198,12 @@ struct moschip_port {
struct urb *read_urb; /* read URB for this port */
__u8 shadowLCR; /* last LCR value received */
__u8 shadowMCR; /* last MCR value received */
- char open;
- char open_ports;
struct usb_serial_port *port; /* loop back to the owner of this object */
/* Offsets */
__u8 SpRegOffset;
__u8 ControlRegOffset;
__u8 DcrRegOffset;
- /* for processing control URBS in interrupt context */
- struct urb *control_urb;
- struct usb_ctrlrequest *dr;
- char *ctrl_buf;
- int MsrLsr;
spinlock_t pool_lock;
struct urb *write_urb_pool[NUM_URBS];
@@ -360,150 +345,11 @@ static void mos7840_dump_serial_port(struct usb_serial_port *port,
/************************************************************************/
/************************************************************************/
-/* I N T E R F A C E F U N C T I O N S */
-/* I N T E R F A C E F U N C T I O N S */
-/************************************************************************/
-/************************************************************************/
-
-static inline void mos7840_set_port_private(struct usb_serial_port *port,
- struct moschip_port *data)
-{
- usb_set_serial_port_data(port, (void *)data);
-}
-
-static inline struct moschip_port *mos7840_get_port_private(struct
- usb_serial_port
- *port)
-{
- return (struct moschip_port *)usb_get_serial_port_data(port);
-}
-
-static void mos7840_handle_new_msr(struct moschip_port *port, __u8 new_msr)
-{
- struct moschip_port *mos7840_port;
- struct async_icount *icount;
- mos7840_port = port;
- if (new_msr &
- (MOS_MSR_DELTA_CTS | MOS_MSR_DELTA_DSR | MOS_MSR_DELTA_RI |
- MOS_MSR_DELTA_CD)) {
- icount = &mos7840_port->port->icount;
-
- /* update input line counters */
- if (new_msr & MOS_MSR_DELTA_CTS)
- icount->cts++;
- if (new_msr & MOS_MSR_DELTA_DSR)
- icount->dsr++;
- if (new_msr & MOS_MSR_DELTA_CD)
- icount->dcd++;
- if (new_msr & MOS_MSR_DELTA_RI)
- icount->rng++;
-
- wake_up_interruptible(&port->port->port.delta_msr_wait);
- }
-}
-
-static void mos7840_handle_new_lsr(struct moschip_port *port, __u8 new_lsr)
-{
- struct async_icount *icount;
-
- if (new_lsr & SERIAL_LSR_BI) {
- /*
- * Parity and Framing errors only count if they
- * occur exclusive of a break being
- * received.
- */
- new_lsr &= (__u8) (SERIAL_LSR_OE | SERIAL_LSR_BI);
- }
-
- /* update input line counters */
- icount = &port->port->icount;
- if (new_lsr & SERIAL_LSR_BI)
- icount->brk++;
- if (new_lsr & SERIAL_LSR_OE)
- icount->overrun++;
- if (new_lsr & SERIAL_LSR_PE)
- icount->parity++;
- if (new_lsr & SERIAL_LSR_FE)
- icount->frame++;
-}
-
-/************************************************************************/
-/************************************************************************/
/* U S B C A L L B A C K F U N C T I O N S */
/* U S B C A L L B A C K F U N C T I O N S */
/************************************************************************/
/************************************************************************/
-static void mos7840_control_callback(struct urb *urb)
-{
- unsigned char *data;
- struct moschip_port *mos7840_port;
- struct device *dev = &urb->dev->dev;
- __u8 regval = 0x0;
- int status = urb->status;
-
- mos7840_port = urb->context;
-
- switch (status) {
- case 0:
- /* success */
- break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dev_dbg(dev, "%s - urb shutting down with status: %d\n", __func__, status);
- goto out;
- default:
- dev_dbg(dev, "%s - nonzero urb status received: %d\n", __func__, status);
- goto out;
- }
-
- dev_dbg(dev, "%s urb buffer size is %d\n", __func__, urb->actual_length);
- if (urb->actual_length < 1)
- goto out;
-
- dev_dbg(dev, "%s mos7840_port->MsrLsr is %d port %d\n", __func__,
- mos7840_port->MsrLsr, mos7840_port->port_num);
- data = urb->transfer_buffer;
- regval = (__u8) data[0];
- dev_dbg(dev, "%s data is %x\n", __func__, regval);
- if (mos7840_port->MsrLsr == 0)
- mos7840_handle_new_msr(mos7840_port, regval);
- else if (mos7840_port->MsrLsr == 1)
- mos7840_handle_new_lsr(mos7840_port, regval);
-out:
- clear_bit_unlock(MOS7840_FLAG_CTRL_BUSY, &mos7840_port->flags);
-}
-
-static int mos7840_get_reg(struct moschip_port *mcs, __u16 Wval, __u16 reg,
- __u16 *val)
-{
- struct usb_device *dev = mcs->port->serial->dev;
- struct usb_ctrlrequest *dr = mcs->dr;
- unsigned char *buffer = mcs->ctrl_buf;
- int ret;
-
- if (test_and_set_bit_lock(MOS7840_FLAG_CTRL_BUSY, &mcs->flags))
- return -EBUSY;
-
- dr->bRequestType = MCS_RD_RTYPE;
- dr->bRequest = MCS_RDREQ;
- dr->wValue = cpu_to_le16(Wval); /* 0 */
- dr->wIndex = cpu_to_le16(reg);
- dr->wLength = cpu_to_le16(2);
-
- usb_fill_control_urb(mcs->control_urb, dev, usb_rcvctrlpipe(dev, 0),
- (unsigned char *)dr, buffer, 2,
- mos7840_control_callback, mcs);
- mcs->control_urb->transfer_buffer_length = 2;
- ret = usb_submit_urb(mcs->control_urb, GFP_ATOMIC);
- if (ret)
- clear_bit_unlock(MOS7840_FLAG_CTRL_BUSY, &mcs->flags);
-
- return ret;
-}
-
static void mos7840_set_led_callback(struct urb *urb)
{
switch (urb->status) {
@@ -580,146 +426,6 @@ static void mos7840_led_activity(struct usb_serial_port *port)
}
/*****************************************************************************
- * mos7840_interrupt_callback
- * this is the callback function for when we have received data on the
- * interrupt endpoint.
- *****************************************************************************/
-
-static void mos7840_interrupt_callback(struct urb *urb)
-{
- int result;
- int length;
- struct moschip_port *mos7840_port;
- struct usb_serial *serial;
- __u16 Data;
- unsigned char *data;
- __u8 sp[5];
- int i, rv = 0;
- __u16 wval, wreg = 0;
- int status = urb->status;
-
- switch (status) {
- case 0:
- /* success */
- break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
- __func__, status);
- return;
- default:
- dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n",
- __func__, status);
- goto exit;
- }
-
- length = urb->actual_length;
- data = urb->transfer_buffer;
-
- serial = urb->context;
-
- /* Moschip get 5 bytes
- * Byte 1 IIR Port 1 (port.number is 0)
- * Byte 2 IIR Port 2 (port.number is 1)
- * Byte 3 IIR Port 3 (port.number is 2)
- * Byte 4 IIR Port 4 (port.number is 3)
- * Byte 5 FIFO status for both */
-
- if (length > 5) {
- dev_dbg(&urb->dev->dev, "%s", "Wrong data !!!\n");
- return;
- }
-
- sp[0] = (__u8) data[0];
- sp[1] = (__u8) data[1];
- sp[2] = (__u8) data[2];
- sp[3] = (__u8) data[3];
-
- for (i = 0; i < serial->num_ports; i++) {
- mos7840_port = mos7840_get_port_private(serial->port[i]);
- wval = ((__u16)serial->port[i]->port_number + 1) << 8;
- if (mos7840_port->open) {
- if (sp[i] & 0x01) {
- dev_dbg(&urb->dev->dev, "SP%d No Interrupt !!!\n", i);
- } else {
- switch (sp[i] & 0x0f) {
- case SERIAL_IIR_RLS:
- dev_dbg(&urb->dev->dev, "Serial Port %d: Receiver status error or \n", i);
- dev_dbg(&urb->dev->dev, "address bit detected in 9-bit mode\n");
- mos7840_port->MsrLsr = 1;
- wreg = LINE_STATUS_REGISTER;
- break;
- case SERIAL_IIR_MS:
- dev_dbg(&urb->dev->dev, "Serial Port %d: Modem status change\n", i);
- mos7840_port->MsrLsr = 0;
- wreg = MODEM_STATUS_REGISTER;
- break;
- }
- rv = mos7840_get_reg(mos7840_port, wval, wreg, &Data);
- }
- }
- }
- if (!(rv < 0))
- /* the completion handler for the control urb will resubmit */
- return;
-exit:
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result) {
- dev_err(&urb->dev->dev,
- "%s - Error %d submitting interrupt urb\n",
- __func__, result);
- }
-}
-
-static int mos7840_port_paranoia_check(struct usb_serial_port *port,
- const char *function)
-{
- if (!port) {
- pr_debug("%s - port == NULL\n", function);
- return -1;
- }
- if (!port->serial) {
- pr_debug("%s - port->serial == NULL\n", function);
- return -1;
- }
-
- return 0;
-}
-
-/* Inline functions to check the sanity of a pointer that is passed to us */
-static int mos7840_serial_paranoia_check(struct usb_serial *serial,
- const char *function)
-{
- if (!serial) {
- pr_debug("%s - serial == NULL\n", function);
- return -1;
- }
- if (!serial->type) {
- pr_debug("%s - serial->type == NULL!\n", function);
- return -1;
- }
-
- return 0;
-}
-
-static struct usb_serial *mos7840_get_usb_serial(struct usb_serial_port *port,
- const char *function)
-{
- /* if no port was specified, or it fails a paranoia check */
- if (!port ||
- mos7840_port_paranoia_check(port, function) ||
- mos7840_serial_paranoia_check(port->serial, function)) {
- /* then say that we don't have a valid usb_serial thing,
- * which will end up genrating -ENODEV return values */
- return NULL;
- }
-
- return port->serial;
-}
-
-/*****************************************************************************
* mos7840_bulk_in_callback
* this is the callback function for when we have received data on the
* bulk in endpoint.
@@ -727,35 +433,18 @@ static struct usb_serial *mos7840_get_usb_serial(struct usb_serial_port *port,
static void mos7840_bulk_in_callback(struct urb *urb)
{
+ struct moschip_port *mos7840_port = urb->context;
+ struct usb_serial_port *port = mos7840_port->port;
int retval;
unsigned char *data;
- struct usb_serial *serial;
- struct usb_serial_port *port;
- struct moschip_port *mos7840_port;
int status = urb->status;
- mos7840_port = urb->context;
- if (!mos7840_port)
- return;
-
if (status) {
dev_dbg(&urb->dev->dev, "nonzero read bulk status received: %d\n", status);
mos7840_port->read_urb_busy = false;
return;
}
- port = mos7840_port->port;
- if (mos7840_port_paranoia_check(port, __func__)) {
- mos7840_port->read_urb_busy = false;
- return;
- }
-
- serial = mos7840_get_usb_serial(port, __func__);
- if (!serial) {
- mos7840_port->read_urb_busy = false;
- return;
- }
-
data = urb->transfer_buffer;
usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
@@ -767,12 +456,6 @@ static void mos7840_bulk_in_callback(struct urb *urb)
dev_dbg(&port->dev, "icount.rx is %d:\n", port->icount.rx);
}
- if (!mos7840_port->read_urb) {
- dev_dbg(&port->dev, "%s", "URB KILLED !!!\n");
- mos7840_port->read_urb_busy = false;
- return;
- }
-
if (mos7840_port->has_led)
mos7840_led_activity(port);
@@ -793,14 +476,12 @@ static void mos7840_bulk_in_callback(struct urb *urb)
static void mos7840_bulk_out_data_callback(struct urb *urb)
{
- struct moschip_port *mos7840_port;
- struct usb_serial_port *port;
+ struct moschip_port *mos7840_port = urb->context;
+ struct usb_serial_port *port = mos7840_port->port;
int status = urb->status;
unsigned long flags;
int i;
- mos7840_port = urb->context;
- port = mos7840_port->port;
spin_lock_irqsave(&mos7840_port->pool_lock, flags);
for (i = 0; i < NUM_URBS; i++) {
if (urb == mos7840_port->write_urb_pool[i]) {
@@ -815,11 +496,7 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
return;
}
- if (mos7840_port_paranoia_check(port, __func__))
- return;
-
- if (mos7840_port->open)
- tty_port_tty_wakeup(&port->port);
+ tty_port_tty_wakeup(&port->port);
}
@@ -836,32 +513,16 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
{
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
+ struct usb_serial *serial = port->serial;
int response;
int j;
- struct usb_serial *serial;
struct urb *urb;
__u16 Data;
int status;
- struct moschip_port *mos7840_port;
- struct moschip_port *port0;
-
- if (mos7840_port_paranoia_check(port, __func__))
- return -ENODEV;
-
- serial = port->serial;
-
- if (mos7840_serial_paranoia_check(serial, __func__))
- return -ENODEV;
-
- mos7840_port = mos7840_get_port_private(port);
- port0 = mos7840_get_port_private(serial->port[0]);
-
- if (mos7840_port == NULL || port0 == NULL)
- return -ENODEV;
usb_clear_halt(serial->dev, port->write_urb->pipe);
usb_clear_halt(serial->dev, port->read_urb->pipe);
- port0->open_ports++;
/* Initialising the write urb pool */
for (j = 0; j < NUM_URBS; ++j) {
@@ -1012,41 +673,6 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
status = mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset,
Data);
- /* Check to see if we've set up our endpoint info yet *
- * (can't set it up in mos7840_startup as the structures *
- * were not set up at that time.) */
- if (port0->open_ports == 1) {
- /* FIXME: Buffer never NULL, so URB is not submitted. */
- if (serial->port[0]->interrupt_in_buffer == NULL) {
- /* set up interrupt urb */
- usb_fill_int_urb(serial->port[0]->interrupt_in_urb,
- serial->dev,
- usb_rcvintpipe(serial->dev,
- serial->port[0]->interrupt_in_endpointAddress),
- serial->port[0]->interrupt_in_buffer,
- serial->port[0]->interrupt_in_urb->
- transfer_buffer_length,
- mos7840_interrupt_callback,
- serial,
- serial->port[0]->interrupt_in_urb->interval);
-
- /* start interrupt read for mos7840 */
- response =
- usb_submit_urb(serial->port[0]->interrupt_in_urb,
- GFP_KERNEL);
- if (response) {
- dev_err(&port->dev, "%s - Error %d submitting "
- "interrupt urb\n", __func__, response);
- }
-
- }
-
- }
-
- /* see if we've set up our endpoint info yet *
- * (can't set it up in mos7840_startup as the *
- * structures were not set up at that time.) */
-
dev_dbg(&port->dev, "port number is %d\n", port->port_number);
dev_dbg(&port->dev, "minor number is %d\n", port->minor);
dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
@@ -1086,9 +712,6 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
/* initialize our port settings */
/* Must set to enable ints! */
mos7840_port->shadowMCR = MCR_MASTER_IE;
- /* send a open port command */
- mos7840_port->open = 1;
- /* mos7840_change_port_settings(mos7840_port,old_termios); */
return 0;
err:
@@ -1115,17 +738,10 @@ err:
static int mos7840_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
int i;
int chars = 0;
unsigned long flags;
- struct moschip_port *mos7840_port;
-
- if (mos7840_port_paranoia_check(port, __func__))
- return 0;
-
- mos7840_port = mos7840_get_port_private(port);
- if (mos7840_port == NULL)
- return 0;
spin_lock_irqsave(&mos7840_port->pool_lock, flags);
for (i = 0; i < NUM_URBS; ++i) {
@@ -1147,25 +763,10 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty)
static void mos7840_close(struct usb_serial_port *port)
{
- struct usb_serial *serial;
- struct moschip_port *mos7840_port;
- struct moschip_port *port0;
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
int j;
__u16 Data;
- if (mos7840_port_paranoia_check(port, __func__))
- return;
-
- serial = mos7840_get_usb_serial(port, __func__);
- if (!serial)
- return;
-
- mos7840_port = mos7840_get_port_private(port);
- port0 = mos7840_get_port_private(serial->port[0]);
-
- if (mos7840_port == NULL || port0 == NULL)
- return;
-
for (j = 0; j < NUM_URBS; ++j)
usb_kill_urb(mos7840_port->write_urb_pool[j]);
@@ -1180,22 +781,11 @@ static void mos7840_close(struct usb_serial_port *port)
usb_kill_urb(mos7840_port->read_urb);
mos7840_port->read_urb_busy = false;
- port0->open_ports--;
- dev_dbg(&port->dev, "%s in close%d\n", __func__, port0->open_ports);
- if (port0->open_ports == 0) {
- if (serial->port[0]->interrupt_in_urb) {
- dev_dbg(&port->dev, "Shutdown interrupt_in_urb\n");
- usb_kill_urb(serial->port[0]->interrupt_in_urb);
- }
- }
-
Data = 0x0;
mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
Data = 0x00;
mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
-
- mos7840_port->open = 0;
}
/*****************************************************************************
@@ -1205,21 +795,8 @@ static void mos7840_close(struct usb_serial_port *port)
static void mos7840_break(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
unsigned char data;
- struct usb_serial *serial;
- struct moschip_port *mos7840_port;
-
- if (mos7840_port_paranoia_check(port, __func__))
- return;
-
- serial = mos7840_get_usb_serial(port, __func__);
- if (!serial)
- return;
-
- mos7840_port = mos7840_get_port_private(port);
-
- if (mos7840_port == NULL)
- return;
if (break_state == -1)
data = mos7840_port->shadowLCR | LCR_SET_BREAK;
@@ -1244,17 +821,10 @@ static void mos7840_break(struct tty_struct *tty, int break_state)
static int mos7840_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
int i;
int room = 0;
unsigned long flags;
- struct moschip_port *mos7840_port;
-
- if (mos7840_port_paranoia_check(port, __func__))
- return -1;
-
- mos7840_port = mos7840_get_port_private(port);
- if (mos7840_port == NULL)
- return -1;
spin_lock_irqsave(&mos7840_port->pool_lock, flags);
for (i = 0; i < NUM_URBS; ++i) {
@@ -1280,29 +850,17 @@ static int mos7840_write_room(struct tty_struct *tty)
static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *data, int count)
{
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
+ struct usb_serial *serial = port->serial;
int status;
int i;
int bytes_sent = 0;
int transfer_size;
unsigned long flags;
-
- struct moschip_port *mos7840_port;
- struct usb_serial *serial;
struct urb *urb;
/* __u16 Data; */
const unsigned char *current_position = data;
- if (mos7840_port_paranoia_check(port, __func__))
- return -1;
-
- serial = port->serial;
- if (mos7840_serial_paranoia_check(serial, __func__))
- return -1;
-
- mos7840_port = mos7840_get_port_private(port);
- if (mos7840_port == NULL)
- return -1;
-
/* try to find a free urb in the list */
urb = NULL;
@@ -1383,22 +941,9 @@ exit:
static void mos7840_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7840_port;
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
int status;
- if (mos7840_port_paranoia_check(port, __func__))
- return;
-
- mos7840_port = mos7840_get_port_private(port);
-
- if (mos7840_port == NULL)
- return;
-
- if (!mos7840_port->open) {
- dev_dbg(&port->dev, "%s", "port not opened\n");
- return;
- }
-
/* if we are implementing XON/XOFF, send the stop character */
if (I_IXOFF(tty)) {
unsigned char stop_char = STOP_CHAR(tty);
@@ -1425,19 +970,8 @@ static void mos7840_throttle(struct tty_struct *tty)
static void mos7840_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
int status;
- struct moschip_port *mos7840_port = mos7840_get_port_private(port);
-
- if (mos7840_port_paranoia_check(port, __func__))
- return;
-
- if (mos7840_port == NULL)
- return;
-
- if (!mos7840_port->open) {
- dev_dbg(&port->dev, "%s - port not opened\n", __func__);
- return;
- }
/* if we are implementing XON/XOFF, send the start character */
if (I_IXOFF(tty)) {
@@ -1460,15 +994,10 @@ static void mos7840_unthrottle(struct tty_struct *tty)
static int mos7840_tiocmget(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7840_port;
unsigned int result;
__u16 msr;
__u16 mcr;
int status;
- mos7840_port = mos7840_get_port_private(port);
-
- if (mos7840_port == NULL)
- return -ENODEV;
status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr);
if (status < 0)
@@ -1493,15 +1022,10 @@ static int mos7840_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7840_port;
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
unsigned int mcr;
int status;
- mos7840_port = mos7840_get_port_private(port);
-
- if (mos7840_port == NULL)
- return -ENODEV;
-
/* FIXME: What locks the port registers ? */
mcr = mos7840_port->shadowMCR;
if (clear & TIOCM_RTS)
@@ -1578,21 +1102,11 @@ static int mos7840_calc_baud_rate_divisor(struct usb_serial_port *port,
static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
int baudRate)
{
+ struct usb_serial_port *port = mos7840_port->port;
int divisor = 0;
int status;
__u16 Data;
__u16 clk_sel_val;
- struct usb_serial_port *port;
-
- if (mos7840_port == NULL)
- return -1;
-
- port = mos7840_port->port;
- if (mos7840_port_paranoia_check(port, __func__))
- return -1;
-
- if (mos7840_serial_paranoia_check(port->serial, __func__))
- return -1;
dev_dbg(&port->dev, "%s - baud = %d\n", __func__, baudRate);
/* reset clk_uart_sel in spregOffset */
@@ -1681,6 +1195,7 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
static void mos7840_change_port_settings(struct tty_struct *tty,
struct moschip_port *mos7840_port, struct ktermios *old_termios)
{
+ struct usb_serial_port *port = mos7840_port->port;
int baud;
unsigned cflag;
__u8 lData;
@@ -1688,23 +1203,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
__u8 lStop;
int status;
__u16 Data;
- struct usb_serial_port *port;
-
- if (mos7840_port == NULL)
- return;
-
- port = mos7840_port->port;
-
- if (mos7840_port_paranoia_check(port, __func__))
- return;
-
- if (mos7840_serial_paranoia_check(port->serial, __func__))
- return;
-
- if (!mos7840_port->open) {
- dev_dbg(&port->dev, "%s - port not opened\n", __func__);
- return;
- }
lData = LCR_BITS_8;
lStop = LCR_STOP_1;
@@ -1839,37 +1337,13 @@ static void mos7840_set_termios(struct tty_struct *tty,
struct usb_serial_port *port,
struct ktermios *old_termios)
{
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
int status;
- struct usb_serial *serial;
- struct moschip_port *mos7840_port;
-
- if (mos7840_port_paranoia_check(port, __func__))
- return;
-
- serial = port->serial;
-
- if (mos7840_serial_paranoia_check(serial, __func__))
- return;
-
- mos7840_port = mos7840_get_port_private(port);
-
- if (mos7840_port == NULL)
- return;
-
- if (!mos7840_port->open) {
- dev_dbg(&port->dev, "%s - port not opened\n", __func__);
- return;
- }
/* change the port settings to the new ones specified */
mos7840_change_port_settings(tty, mos7840_port, old_termios);
- if (!mos7840_port->read_urb) {
- dev_dbg(&port->dev, "%s", "URB KILLED !!!!!\n");
- return;
- }
-
if (!mos7840_port->read_urb_busy) {
mos7840_port->read_urb_busy = true;
status = usb_submit_urb(mos7840_port->read_urb, GFP_KERNEL);
@@ -1916,7 +1390,7 @@ static int mos7840_get_serial_info(struct tty_struct *tty,
struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7840_port = mos7840_get_port_private(port);
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
ss->type = PORT_16550A;
ss->line = mos7840_port->port->minor;
@@ -1939,15 +1413,6 @@ static int mos7840_ioctl(struct tty_struct *tty,
{
struct usb_serial_port *port = tty->driver_data;
void __user *argp = (void __user *)arg;
- struct moschip_port *mos7840_port;
-
- if (mos7840_port_paranoia_check(port, __func__))
- return -1;
-
- mos7840_port = mos7840_get_port_private(port);
-
- if (mos7840_port == NULL)
- return -1;
switch (cmd) {
/* return number of bytes available */
@@ -1962,6 +1427,13 @@ static int mos7840_ioctl(struct tty_struct *tty,
return -ENOIOCTLCMD;
}
+/*
+ * Check if GPO (pin 42) is connected to GPI (pin 33) as recommended by ASIX
+ * for MCS7810 by bit-banging a 16-bit word.
+ *
+ * Note that GPO is really RTS of the third port so this will toggle RTS of
+ * port two or three on two- and four-port devices.
+ */
static int mos7810_check(struct usb_serial *serial)
{
int i, pass_count = 0;
@@ -2019,16 +1491,12 @@ static int mos7810_check(struct usb_serial *serial)
static int mos7840_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
- u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
+ unsigned long device_flags = id->driver_info;
u8 *buf;
- int device_type;
- if (product == MOSCHIP_DEVICE_ID_7810 ||
- product == MOSCHIP_DEVICE_ID_7820 ||
- product == MOSCHIP_DEVICE_ID_7843) {
- device_type = product;
+ /* Skip device-type detection if we already have device flags. */
+ if (device_flags)
goto out;
- }
buf = kzalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
if (!buf)
@@ -2040,15 +1508,15 @@ static int mos7840_probe(struct usb_serial *serial,
/* For a MCS7840 device GPIO0 must be set to 1 */
if (buf[0] & 0x01)
- device_type = MOSCHIP_DEVICE_ID_7840;
+ device_flags = MCS_PORTS(4);
else if (mos7810_check(serial))
- device_type = MOSCHIP_DEVICE_ID_7810;
+ device_flags = MCS_PORTS(1) | MCS_LED;
else
- device_type = MOSCHIP_DEVICE_ID_7820;
+ device_flags = MCS_PORTS(2);
kfree(buf);
out:
- usb_set_serial_data(serial, (void *)(unsigned long)device_type);
+ usb_set_serial_data(serial, (void *)device_flags);
return 0;
}
@@ -2056,19 +1524,10 @@ out:
static int mos7840_calc_num_ports(struct usb_serial *serial,
struct usb_serial_endpoints *epds)
{
- int device_type = (unsigned long)usb_get_serial_data(serial);
- int num_ports;
+ unsigned long device_flags = (unsigned long)usb_get_serial_data(serial);
+ int num_ports = MCS_PORTS(device_flags);
- if (device_type == MOSCHIP_DEVICE_ID_7843)
- num_ports = 3;
- else
- num_ports = (device_type >> 4) & 0x000F;
-
- /*
- * num_ports is currently never zero as device_type is one of
- * MOSCHIP_DEVICE_ID_78{1,2,4}0.
- */
- if (num_ports == 0)
+ if (num_ports == 0 || num_ports > 4)
return -ENODEV;
if (epds->num_bulk_in < num_ports || epds->num_bulk_out < num_ports) {
@@ -2079,10 +1538,27 @@ static int mos7840_calc_num_ports(struct usb_serial *serial,
return num_ports;
}
+static int mos7840_attach(struct usb_serial *serial)
+{
+ struct device *dev = &serial->interface->dev;
+ int status;
+ u16 val;
+
+ /* Zero Length flag enable */
+ val = 0x0f;
+ status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, val);
+ if (status < 0)
+ dev_dbg(dev, "Writing ZLP_REG5 failed status-0x%x\n", status);
+ else
+ dev_dbg(dev, "ZLP_REG5 Writing success status%d\n", status);
+
+ return status;
+}
+
static int mos7840_port_probe(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
- int device_type = (unsigned long)usb_get_serial_data(serial);
+ unsigned long device_flags = (unsigned long)usb_get_serial_data(serial);
struct moschip_port *mos7840_port;
int status;
int pnum;
@@ -2103,7 +1579,6 @@ static int mos7840_port_probe(struct usb_serial_port *port)
* common to all port */
mos7840_port->port = port;
- mos7840_set_port_private(port, mos7840_port);
spin_lock_init(&mos7840_port->pool_lock);
/* minor is not initialised until later by
@@ -2129,14 +1604,14 @@ static int mos7840_port_probe(struct usb_serial_port *port)
mos7840_port->DcrRegOffset = 0x16 + 3 * (phy_num - 2);
}
mos7840_dump_serial_port(port, mos7840_port);
- mos7840_set_port_private(port, mos7840_port);
+ usb_set_serial_port_data(port, mos7840_port);
/* enable rx_disable bit in control register */
status = mos7840_get_reg_sync(port,
mos7840_port->ControlRegOffset, &Data);
if (status < 0) {
dev_dbg(&port->dev, "Reading ControlReg failed status-0x%x\n", status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "ControlReg Reading success val is %x, status%d\n", Data, status);
Data |= 0x08; /* setting driver done bit */
@@ -2148,7 +1623,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
mos7840_port->ControlRegOffset, Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing ControlReg failed(rx_disable) status-0x%x\n", status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "ControlReg Writing success(rx_disable) status%d\n", status);
@@ -2159,7 +1634,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
(__u16) (mos7840_port->DcrRegOffset + 0), Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing DCR0 failed status-0x%x\n", status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "DCR0 Writing success status%d\n", status);
@@ -2168,7 +1643,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
(__u16) (mos7840_port->DcrRegOffset + 1), Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing DCR1 failed status-0x%x\n", status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "DCR1 Writing success status%d\n", status);
@@ -2177,7 +1652,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
(__u16) (mos7840_port->DcrRegOffset + 2), Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing DCR2 failed status-0x%x\n", status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "DCR2 Writing success status%d\n", status);
@@ -2186,7 +1661,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
status = mos7840_set_reg_sync(port, CLK_START_VALUE_REGISTER, Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "CLK_START_VALUE_REGISTER Writing success status%d\n", status);
@@ -2203,7 +1678,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
status = mos7840_set_uart_reg(port, SCRATCH_PAD_REGISTER, Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "SCRATCH_PAD_REGISTER Writing success status%d\n", status);
@@ -2217,7 +1692,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
(__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num)));
if (status < 0) {
dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 2, status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 2, status);
} else {
@@ -2229,27 +1704,16 @@ static int mos7840_port_probe(struct usb_serial_port *port)
(__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num) - 0x1));
if (status < 0) {
dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 1, status);
- goto out;
+ goto error;
} else
dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 1, status);
}
- mos7840_port->control_urb = usb_alloc_urb(0, GFP_KERNEL);
- mos7840_port->ctrl_buf = kmalloc(16, GFP_KERNEL);
- mos7840_port->dr = kmalloc(sizeof(struct usb_ctrlrequest),
- GFP_KERNEL);
- if (!mos7840_port->control_urb || !mos7840_port->ctrl_buf ||
- !mos7840_port->dr) {
- status = -ENOMEM;
- goto error;
- }
- mos7840_port->has_led = false;
+ mos7840_port->has_led = device_flags & MCS_LED;
/* Initialize LED timers */
- if (device_type == MOSCHIP_DEVICE_ID_7810) {
- mos7840_port->has_led = true;
-
+ if (mos7840_port->has_led) {
mos7840_port->led_urb = usb_alloc_urb(0, GFP_KERNEL);
mos7840_port->led_dr = kmalloc(sizeof(*mos7840_port->led_dr),
GFP_KERNEL);
@@ -2269,29 +1733,11 @@ static int mos7840_port_probe(struct usb_serial_port *port)
/* Turn off LED */
mos7840_set_led_sync(port, MODEM_CONTROL_REGISTER, 0x0300);
}
-out:
- if (pnum == serial->num_ports - 1) {
- /* Zero Length flag enable */
- Data = 0x0f;
- status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data);
- if (status < 0) {
- dev_dbg(&port->dev, "Writing ZLP_REG5 failed status-0x%x\n", status);
- goto error;
- } else
- dev_dbg(&port->dev, "ZLP_REG5 Writing success status%d\n", status);
- /* setting configuration feature to one */
- usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
- 0x03, 0x00, 0x01, 0x00, NULL, 0x00,
- MOS_WDR_TIMEOUT);
- }
return 0;
error:
kfree(mos7840_port->led_dr);
usb_free_urb(mos7840_port->led_urb);
- kfree(mos7840_port->dr);
- kfree(mos7840_port->ctrl_buf);
- usb_free_urb(mos7840_port->control_urb);
kfree(mos7840_port);
return status;
@@ -2299,9 +1745,7 @@ error:
static int mos7840_port_remove(struct usb_serial_port *port)
{
- struct moschip_port *mos7840_port;
-
- mos7840_port = mos7840_get_port_private(port);
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
if (mos7840_port->has_led) {
/* Turn off LED */
@@ -2314,10 +1758,7 @@ static int mos7840_port_remove(struct usb_serial_port *port)
usb_free_urb(mos7840_port->led_urb);
kfree(mos7840_port->led_dr);
}
- usb_kill_urb(mos7840_port->control_urb);
- usb_free_urb(mos7840_port->control_urb);
- kfree(mos7840_port->ctrl_buf);
- kfree(mos7840_port->dr);
+
kfree(mos7840_port);
return 0;
@@ -2340,18 +1781,17 @@ static struct usb_serial_driver moschip7840_4port_device = {
.unthrottle = mos7840_unthrottle,
.calc_num_ports = mos7840_calc_num_ports,
.probe = mos7840_probe,
+ .attach = mos7840_attach,
.ioctl = mos7840_ioctl,
.get_serial = mos7840_get_serial_info,
.set_termios = mos7840_set_termios,
.break_ctl = mos7840_break,
.tiocmget = mos7840_tiocmget,
.tiocmset = mos7840_tiocmset,
- .tiocmiwait = usb_serial_generic_tiocmiwait,
.get_icount = usb_serial_generic_get_icount,
.port_probe = mos7840_port_probe,
.port_remove = mos7840_port_remove,
.read_bulk_callback = mos7840_bulk_in_callback,
- .read_int_callback = mos7840_interrupt_callback,
};
static struct usb_serial_driver * const serial_drivers[] = {
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 06ab016be0b6..e9491d400a24 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -197,6 +197,7 @@ static void option_instat_callback(struct urb *urb);
#define DELL_PRODUCT_5804_MINICARD_ATT 0x819b /* Novatel E371 */
#define DELL_PRODUCT_5821E 0x81d7
+#define DELL_PRODUCT_5821E_ESIM 0x81e0
#define KYOCERA_VENDOR_ID 0x0c88
#define KYOCERA_PRODUCT_KPC650 0x17da
@@ -1044,6 +1045,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E),
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
+ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E_ESIM),
+ .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /* ADU-E100, ADU-310 */
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -1990,6 +1993,10 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x13) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x14) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x1b) },
+ { USB_DEVICE(0x0489, 0xe0b4), /* Foxconn T77W968 */
+ .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
+ { USB_DEVICE(0x0489, 0xe0b5), /* Foxconn T77W968 ESIM */
+ .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
{ USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 */
.driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
{ USB_DEVICE(0x2cb7, 0x0104), /* Fibocom NL678 series */
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 9d27b76c5c6e..aab737e1e7b6 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -47,6 +47,12 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ZTEK) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_TB) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GC) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GB) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GT) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GL) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GE) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GS) },
{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) },
{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) },
{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID),
@@ -130,9 +136,11 @@ MODULE_DEVICE_TABLE(usb, id_table);
#define VENDOR_WRITE_REQUEST_TYPE 0x40
#define VENDOR_WRITE_REQUEST 0x01
+#define VENDOR_WRITE_NREQUEST 0x80
#define VENDOR_READ_REQUEST_TYPE 0xc0
#define VENDOR_READ_REQUEST 0x01
+#define VENDOR_READ_NREQUEST 0x81
#define UART_STATE_INDEX 8
#define UART_STATE_MSR_MASK 0x8b
@@ -148,11 +156,24 @@ MODULE_DEVICE_TABLE(usb, id_table);
#define PL2303_FLOWCTRL_MASK 0xf0
+#define PL2303_READ_TYPE_HX_STATUS 0x8080
+
+#define PL2303_HXN_RESET_REG 0x07
+#define PL2303_HXN_RESET_UPSTREAM_PIPE 0x02
+#define PL2303_HXN_RESET_DOWNSTREAM_PIPE 0x01
+
+#define PL2303_HXN_FLOWCTRL_REG 0x0a
+#define PL2303_HXN_FLOWCTRL_MASK 0x1c
+#define PL2303_HXN_FLOWCTRL_NONE 0x1c
+#define PL2303_HXN_FLOWCTRL_RTS_CTS 0x18
+#define PL2303_HXN_FLOWCTRL_XON_XOFF 0x0c
+
static void pl2303_set_break(struct usb_serial_port *port, bool enable);
enum pl2303_type {
TYPE_01, /* Type 0 and 1 (difference unknown) */
TYPE_HX, /* HX version of the pl2303 chip */
+ TYPE_HXN, /* HXN version of the pl2303 chip */
TYPE_COUNT
};
@@ -184,16 +205,26 @@ static const struct pl2303_type_data pl2303_type_data[TYPE_COUNT] = {
[TYPE_HX] = {
.max_baud_rate = 12000000,
},
+ [TYPE_HXN] = {
+ .max_baud_rate = 12000000,
+ },
};
static int pl2303_vendor_read(struct usb_serial *serial, u16 value,
unsigned char buf[1])
{
+ struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
struct device *dev = &serial->interface->dev;
+ u8 request;
int res;
+ if (spriv->type == &pl2303_type_data[TYPE_HXN])
+ request = VENDOR_READ_NREQUEST;
+ else
+ request = VENDOR_READ_REQUEST;
+
res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
- VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE,
+ request, VENDOR_READ_REQUEST_TYPE,
value, 0, buf, 1, 100);
if (res != 1) {
dev_err(dev, "%s - failed to read [%04x]: %d\n", __func__,
@@ -211,13 +242,20 @@ static int pl2303_vendor_read(struct usb_serial *serial, u16 value,
static int pl2303_vendor_write(struct usb_serial *serial, u16 value, u16 index)
{
+ struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
struct device *dev = &serial->interface->dev;
+ u8 request;
int res;
dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, index);
+ if (spriv->type == &pl2303_type_data[TYPE_HXN])
+ request = VENDOR_WRITE_NREQUEST;
+ else
+ request = VENDOR_WRITE_REQUEST;
+
res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
- VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE,
+ request, VENDOR_WRITE_REQUEST_TYPE,
value, index, NULL, 0, 100);
if (res) {
dev_err(dev, "%s - failed to write [%04x]: %d\n", __func__,
@@ -230,6 +268,7 @@ static int pl2303_vendor_write(struct usb_serial *serial, u16 value, u16 index)
static int pl2303_update_reg(struct usb_serial *serial, u8 reg, u8 mask, u8 val)
{
+ struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
int ret = 0;
u8 *buf;
@@ -237,7 +276,11 @@ static int pl2303_update_reg(struct usb_serial *serial, u8 reg, u8 mask, u8 val)
if (!buf)
return -ENOMEM;
- ret = pl2303_vendor_read(serial, reg | 0x80, buf);
+ if (spriv->type == &pl2303_type_data[TYPE_HXN])
+ ret = pl2303_vendor_read(serial, reg, buf);
+ else
+ ret = pl2303_vendor_read(serial, reg | 0x80, buf);
+
if (ret)
goto out_free;
@@ -320,6 +363,7 @@ static int pl2303_startup(struct usb_serial *serial)
struct pl2303_serial_private *spriv;
enum pl2303_type type = TYPE_01;
unsigned char *buf;
+ int res;
spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
if (!spriv)
@@ -341,26 +385,37 @@ static int pl2303_startup(struct usb_serial *serial)
type = TYPE_01; /* type 1 */
dev_dbg(&serial->interface->dev, "device type: %d\n", type);
+ if (type == TYPE_HX) {
+ res = usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE,
+ PL2303_READ_TYPE_HX_STATUS, 0, buf, 1, 100);
+ if (res != 1)
+ type = TYPE_HXN;
+ }
+
spriv->type = &pl2303_type_data[type];
spriv->quirks = (unsigned long)usb_get_serial_data(serial);
spriv->quirks |= spriv->type->quirks;
usb_set_serial_data(serial, spriv);
- pl2303_vendor_read(serial, 0x8484, buf);
- pl2303_vendor_write(serial, 0x0404, 0);
- pl2303_vendor_read(serial, 0x8484, buf);
- pl2303_vendor_read(serial, 0x8383, buf);
- pl2303_vendor_read(serial, 0x8484, buf);
- pl2303_vendor_write(serial, 0x0404, 1);
- pl2303_vendor_read(serial, 0x8484, buf);
- pl2303_vendor_read(serial, 0x8383, buf);
- pl2303_vendor_write(serial, 0, 1);
- pl2303_vendor_write(serial, 1, 0);
- if (spriv->quirks & PL2303_QUIRK_LEGACY)
- pl2303_vendor_write(serial, 2, 0x24);
- else
- pl2303_vendor_write(serial, 2, 0x44);
+ if (type != TYPE_HXN) {
+ pl2303_vendor_read(serial, 0x8484, buf);
+ pl2303_vendor_write(serial, 0x0404, 0);
+ pl2303_vendor_read(serial, 0x8484, buf);
+ pl2303_vendor_read(serial, 0x8383, buf);
+ pl2303_vendor_read(serial, 0x8484, buf);
+ pl2303_vendor_write(serial, 0x0404, 1);
+ pl2303_vendor_read(serial, 0x8484, buf);
+ pl2303_vendor_read(serial, 0x8383, buf);
+ pl2303_vendor_write(serial, 0, 1);
+ pl2303_vendor_write(serial, 1, 0);
+ if (spriv->quirks & PL2303_QUIRK_LEGACY)
+ pl2303_vendor_write(serial, 2, 0x24);
+ else
+ pl2303_vendor_write(serial, 2, 0x44);
+ }
kfree(buf);
@@ -719,14 +774,31 @@ static void pl2303_set_termios(struct tty_struct *tty,
}
if (C_CRTSCTS(tty)) {
- if (spriv->quirks & PL2303_QUIRK_LEGACY)
+ if (spriv->quirks & PL2303_QUIRK_LEGACY) {
pl2303_update_reg(serial, 0, PL2303_FLOWCTRL_MASK, 0x40);
- else
+ } else if (spriv->type == &pl2303_type_data[TYPE_HXN]) {
+ pl2303_update_reg(serial, PL2303_HXN_FLOWCTRL_REG,
+ PL2303_HXN_FLOWCTRL_MASK,
+ PL2303_HXN_FLOWCTRL_RTS_CTS);
+ } else {
pl2303_update_reg(serial, 0, PL2303_FLOWCTRL_MASK, 0x60);
+ }
} else if (pl2303_enable_xonxoff(tty, spriv->type)) {
- pl2303_update_reg(serial, 0, PL2303_FLOWCTRL_MASK, 0xc0);
+ if (spriv->type == &pl2303_type_data[TYPE_HXN]) {
+ pl2303_update_reg(serial, PL2303_HXN_FLOWCTRL_REG,
+ PL2303_HXN_FLOWCTRL_MASK,
+ PL2303_HXN_FLOWCTRL_XON_XOFF);
+ } else {
+ pl2303_update_reg(serial, 0, PL2303_FLOWCTRL_MASK, 0xc0);
+ }
} else {
- pl2303_update_reg(serial, 0, PL2303_FLOWCTRL_MASK, 0);
+ if (spriv->type == &pl2303_type_data[TYPE_HXN]) {
+ pl2303_update_reg(serial, PL2303_HXN_FLOWCTRL_REG,
+ PL2303_HXN_FLOWCTRL_MASK,
+ PL2303_HXN_FLOWCTRL_NONE);
+ } else {
+ pl2303_update_reg(serial, 0, PL2303_FLOWCTRL_MASK, 0);
+ }
}
kfree(buf);
@@ -767,8 +839,14 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
usb_clear_halt(serial->dev, port->read_urb->pipe);
} else {
/* reset upstream data pipes */
- pl2303_vendor_write(serial, 8, 0);
- pl2303_vendor_write(serial, 9, 0);
+ if (spriv->type == &pl2303_type_data[TYPE_HXN]) {
+ pl2303_vendor_write(serial, PL2303_HXN_RESET_REG,
+ PL2303_HXN_RESET_UPSTREAM_PIPE |
+ PL2303_HXN_RESET_DOWNSTREAM_PIPE);
+ } else {
+ pl2303_vendor_write(serial, 8, 0);
+ pl2303_vendor_write(serial, 9, 0);
+ }
}
/* Setup termios */
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index b0175f17d1a2..a019ea7e6e0e 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -9,6 +9,12 @@
#define PL2303_VENDOR_ID 0x067b
#define PL2303_PRODUCT_ID 0x2303
#define PL2303_PRODUCT_ID_TB 0x2304
+#define PL2303_PRODUCT_ID_GC 0x23a3
+#define PL2303_PRODUCT_ID_GB 0x23b3
+#define PL2303_PRODUCT_ID_GT 0x23c3
+#define PL2303_PRODUCT_ID_GL 0x23d3
+#define PL2303_PRODUCT_ID_GE 0x23e3
+#define PL2303_PRODUCT_ID_GS 0x23f3
#define PL2303_PRODUCT_ID_RSAQ2 0x04bb
#define PL2303_PRODUCT_ID_DCU11 0x1234
#define PL2303_PRODUCT_ID_PHAROS 0xaaa0
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 54a3c8195c96..66a4dcbbb1fc 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -369,8 +369,8 @@ static int queuecommand_lck(struct scsi_cmnd *srb,
/* check for state-transition errors */
if (us->srb != NULL) {
- printk(KERN_ERR "usb-storage: Error in %s: us->srb = %p\n",
- __func__, us->srb);
+ dev_err(&us->pusb_intf->dev,
+ "Error in %s: us->srb = %p\n", __func__, us->srb);
return SCSI_MLQUEUE_HOST_BUSY;
}
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 34538253f12c..475b9c692827 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -825,6 +825,10 @@ static int uas_slave_configure(struct scsi_device *sdev)
sdev->wce_default_on = 1;
}
+ /* Some disks cannot handle READ_CAPACITY_16 */
+ if (devinfo->flags & US_FL_NO_READ_CAPACITY_16)
+ sdev->no_read_capacity_16 = 1;
+
/*
* Some disks return the total number of blocks in response
* to READ CAPACITY rather than the highest block number.
@@ -834,6 +838,12 @@ static int uas_slave_configure(struct scsi_device *sdev)
sdev->fix_capacity = 1;
/*
+ * in some cases we have to guess
+ */
+ if (devinfo->flags & US_FL_CAPACITY_HEURISTICS)
+ sdev->guess_capacity = 1;
+
+ /*
* Some devices don't like MODE SENSE with page=0x3f,
* which is the command used for checking if a device
* is write-protected. Now that we tell the sd driver
diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index d0bdebd87ce3..1b23741036ee 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -87,12 +87,15 @@ UNUSUAL_DEV(0x2537, 0x1068, 0x0000, 0x9999,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_IGNORE_UAS),
-/* Reported-by: Takeo Nakayama <javhera@gmx.com> */
+/*
+ * Initially Reported-by: Takeo Nakayama <javhera@gmx.com>
+ * UAS Ignore Reported by Steven Ellis <sellis@redhat.com>
+ */
UNUSUAL_DEV(0x357d, 0x7788, 0x0000, 0x9999,
"JMicron",
"JMS566",
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
- US_FL_NO_REPORT_OPCODES),
+ US_FL_NO_REPORT_OPCODES | US_FL_IGNORE_UAS),
/* Reported-by: Hans de Goede <hdegoede@redhat.com> */
UNUSUAL_DEV(0x4971, 0x1012, 0x0000, 0x9999,
diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index 895e2418de53..b4f2aac7ae8a 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -50,6 +50,17 @@ source "drivers/usb/typec/tcpm/Kconfig"
source "drivers/usb/typec/ucsi/Kconfig"
+config TYPEC_HD3SS3220
+ tristate "TI HD3SS3220 Type-C DRP Port controller driver"
+ depends on I2C
+ depends on USB_ROLE_SWITCH
+ help
+ Say Y or M here if your system has TI HD3SS3220 Type-C DRP Port
+ controller driver.
+
+ If you choose to build this driver as a dynamically linked module, the
+ module will be called hd3ss3220.ko.
+
config TYPEC_TPS6598X
tristate "TI TPS6598x USB Power Delivery controller driver"
depends on I2C
diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
index 6696b7263d61..7753a5c3cd46 100644
--- a/drivers/usb/typec/Makefile
+++ b/drivers/usb/typec/Makefile
@@ -4,5 +4,6 @@ typec-y := class.o mux.o bus.o
obj-$(CONFIG_TYPEC) += altmodes/
obj-$(CONFIG_TYPEC_TCPM) += tcpm/
obj-$(CONFIG_TYPEC_UCSI) += ucsi/
+obj-$(CONFIG_TYPEC_HD3SS3220) += hd3ss3220.o
obj-$(CONFIG_TYPEC_TPS6598X) += tps6598x.o
obj-$(CONFIG_TYPEC) += mux/
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 94a3eda62add..7ece6ca6e690 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -53,6 +53,7 @@ struct typec_port {
struct typec_mux *mux;
const struct typec_capability *cap;
+ const struct typec_operations *ops;
};
#define to_typec_port(_dev_) container_of(_dev_, struct typec_port, dev)
@@ -955,7 +956,7 @@ preferred_role_store(struct device *dev, struct device_attribute *attr,
return -EOPNOTSUPP;
}
- if (!port->cap->try_role) {
+ if (!port->ops || !port->ops->try_role) {
dev_dbg(dev, "Setting preferred role not supported\n");
return -EOPNOTSUPP;
}
@@ -968,7 +969,7 @@ preferred_role_store(struct device *dev, struct device_attribute *attr,
return -EINVAL;
}
- ret = port->cap->try_role(port->cap, role);
+ ret = port->ops->try_role(port, role);
if (ret)
return ret;
@@ -999,7 +1000,7 @@ static ssize_t data_role_store(struct device *dev,
struct typec_port *port = to_typec_port(dev);
int ret;
- if (!port->cap->dr_set) {
+ if (!port->ops || !port->ops->dr_set) {
dev_dbg(dev, "data role swapping not supported\n");
return -EOPNOTSUPP;
}
@@ -1014,7 +1015,7 @@ static ssize_t data_role_store(struct device *dev,
goto unlock_and_ret;
}
- ret = port->cap->dr_set(port->cap, ret);
+ ret = port->ops->dr_set(port, ret);
if (ret)
goto unlock_and_ret;
@@ -1049,7 +1050,7 @@ static ssize_t power_role_store(struct device *dev,
return -EOPNOTSUPP;
}
- if (!port->cap->pr_set) {
+ if (!port->ops || !port->ops->pr_set) {
dev_dbg(dev, "power role swapping not supported\n");
return -EOPNOTSUPP;
}
@@ -1071,7 +1072,7 @@ static ssize_t power_role_store(struct device *dev,
goto unlock_and_ret;
}
- ret = port->cap->pr_set(port->cap, ret);
+ ret = port->ops->pr_set(port, ret);
if (ret)
goto unlock_and_ret;
@@ -1102,7 +1103,8 @@ port_type_store(struct device *dev, struct device_attribute *attr,
int ret;
enum typec_port_type type;
- if (!port->cap->port_type_set || port->cap->type != TYPEC_PORT_DRP) {
+ if (port->cap->type != TYPEC_PORT_DRP ||
+ !port->ops || !port->ops->port_type_set) {
dev_dbg(dev, "changing port type not supported\n");
return -EOPNOTSUPP;
}
@@ -1119,7 +1121,7 @@ port_type_store(struct device *dev, struct device_attribute *attr,
goto unlock_and_ret;
}
- ret = port->cap->port_type_set(port->cap, type);
+ ret = port->ops->port_type_set(port, type);
if (ret)
goto unlock_and_ret;
@@ -1175,7 +1177,7 @@ static ssize_t vconn_source_store(struct device *dev,
return -EOPNOTSUPP;
}
- if (!port->cap->vconn_set) {
+ if (!port->ops || !port->ops->vconn_set) {
dev_dbg(dev, "VCONN swapping not supported\n");
return -EOPNOTSUPP;
}
@@ -1184,7 +1186,7 @@ static ssize_t vconn_source_store(struct device *dev,
if (ret)
return ret;
- ret = port->cap->vconn_set(port->cap, (enum typec_role)source);
+ ret = port->ops->vconn_set(port, (enum typec_role)source);
if (ret)
return ret;
@@ -1278,6 +1280,7 @@ static void typec_release(struct device *dev)
ida_destroy(&port->mode_ids);
typec_switch_put(port->sw);
typec_mux_put(port->mux);
+ kfree(port->cap);
kfree(port);
}
@@ -1487,6 +1490,16 @@ EXPORT_SYMBOL_GPL(typec_set_mode);
/* --------------------------------------- */
/**
+ * typec_get_drvdata - Return private driver data pointer
+ * @port: USB Type-C port
+ */
+void *typec_get_drvdata(struct typec_port *port)
+{
+ return dev_get_drvdata(&port->dev);
+}
+EXPORT_SYMBOL_GPL(typec_get_drvdata);
+
+/**
* typec_port_register_altmode - Register USB Type-C Port Alternate Mode
* @port: USB Type-C Port that supports the alternate mode
* @desc: Description of the alternate mode
@@ -1579,7 +1592,7 @@ struct typec_port *typec_register_port(struct device *parent,
mutex_init(&port->port_type_lock);
port->id = id;
- port->cap = cap;
+ port->ops = cap->ops;
port->port_type = cap->type;
port->prefer_role = cap->prefer_role;
@@ -1589,6 +1602,13 @@ struct typec_port *typec_register_port(struct device *parent,
port->dev.fwnode = cap->fwnode;
port->dev.type = &typec_port_dev_type;
dev_set_name(&port->dev, "port%d", id);
+ dev_set_drvdata(&port->dev, cap->driver_data);
+
+ port->cap = kmemdup(cap, sizeof(*cap), GFP_KERNEL);
+ if (!port->cap) {
+ put_device(&port->dev);
+ return ERR_PTR(-ENOMEM);
+ }
port->sw = typec_switch_get(&port->dev);
if (IS_ERR(port->sw)) {
diff --git a/drivers/usb/typec/hd3ss3220.c b/drivers/usb/typec/hd3ss3220.c
new file mode 100644
index 000000000000..323dfa8160ab
--- /dev/null
+++ b/drivers/usb/typec/hd3ss3220.c
@@ -0,0 +1,269 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * TI HD3SS3220 Type-C DRP Port Controller Driver
+ *
+ * Copyright (C) 2019 Renesas Electronics Corp.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/usb/role.h>
+#include <linux/irqreturn.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/usb/typec.h>
+#include <linux/delay.h>
+
+#define HD3SS3220_REG_CN_STAT_CTRL 0x09
+#define HD3SS3220_REG_GEN_CTRL 0x0A
+#define HD3SS3220_REG_DEV_REV 0xA0
+
+/* Register HD3SS3220_REG_CN_STAT_CTRL*/
+#define HD3SS3220_REG_CN_STAT_CTRL_ATTACHED_STATE_MASK (BIT(7) | BIT(6))
+#define HD3SS3220_REG_CN_STAT_CTRL_AS_DFP BIT(6)
+#define HD3SS3220_REG_CN_STAT_CTRL_AS_UFP BIT(7)
+#define HD3SS3220_REG_CN_STAT_CTRL_TO_ACCESSORY (BIT(7) | BIT(6))
+#define HD3SS3220_REG_CN_STAT_CTRL_INT_STATUS BIT(4)
+
+/* Register HD3SS3220_REG_GEN_CTRL*/
+#define HD3SS3220_REG_GEN_CTRL_SRC_PREF_MASK (BIT(2) | BIT(1))
+#define HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT 0x00
+#define HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SNK BIT(1)
+#define HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SRC (BIT(2) | BIT(1))
+
+struct hd3ss3220 {
+ struct device *dev;
+ struct regmap *regmap;
+ struct usb_role_switch *role_sw;
+ struct typec_port *port;
+};
+
+static int hd3ss3220_set_source_pref(struct hd3ss3220 *hd3ss3220, int src_pref)
+{
+ return regmap_update_bits(hd3ss3220->regmap, HD3SS3220_REG_GEN_CTRL,
+ HD3SS3220_REG_GEN_CTRL_SRC_PREF_MASK,
+ src_pref);
+}
+
+static enum usb_role hd3ss3220_get_attached_state(struct hd3ss3220 *hd3ss3220)
+{
+ unsigned int reg_val;
+ enum usb_role attached_state;
+ int ret;
+
+ ret = regmap_read(hd3ss3220->regmap, HD3SS3220_REG_CN_STAT_CTRL,
+ &reg_val);
+ if (ret < 0)
+ return ret;
+
+ switch (reg_val & HD3SS3220_REG_CN_STAT_CTRL_ATTACHED_STATE_MASK) {
+ case HD3SS3220_REG_CN_STAT_CTRL_AS_DFP:
+ attached_state = USB_ROLE_HOST;
+ break;
+ case HD3SS3220_REG_CN_STAT_CTRL_AS_UFP:
+ attached_state = USB_ROLE_DEVICE;
+ break;
+ default:
+ attached_state = USB_ROLE_NONE;
+ break;
+ }
+
+ return attached_state;
+}
+
+static int hd3ss3220_dr_set(struct typec_port *port, enum typec_data_role role)
+{
+ struct hd3ss3220 *hd3ss3220 = typec_get_drvdata(port);
+ enum usb_role role_val;
+ int pref, ret = 0;
+
+ if (role == TYPEC_HOST) {
+ role_val = USB_ROLE_HOST;
+ pref = HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SRC;
+ } else {
+ role_val = USB_ROLE_DEVICE;
+ pref = HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SNK;
+ }
+
+ ret = hd3ss3220_set_source_pref(hd3ss3220, pref);
+ usleep_range(10, 100);
+
+ usb_role_switch_set_role(hd3ss3220->role_sw, role_val);
+ typec_set_data_role(hd3ss3220->port, role);
+
+ return ret;
+}
+
+static const struct typec_operations hd3ss3220_ops = {
+ .dr_set = hd3ss3220_dr_set
+};
+
+static void hd3ss3220_set_role(struct hd3ss3220 *hd3ss3220)
+{
+ enum usb_role role_state = hd3ss3220_get_attached_state(hd3ss3220);
+
+ usb_role_switch_set_role(hd3ss3220->role_sw, role_state);
+ if (role_state == USB_ROLE_NONE)
+ hd3ss3220_set_source_pref(hd3ss3220,
+ HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT);
+
+ switch (role_state) {
+ case USB_ROLE_HOST:
+ typec_set_data_role(hd3ss3220->port, TYPEC_HOST);
+ break;
+ case USB_ROLE_DEVICE:
+ typec_set_data_role(hd3ss3220->port, TYPEC_DEVICE);
+ break;
+ default:
+ break;
+ }
+}
+
+static irqreturn_t hd3ss3220_irq(struct hd3ss3220 *hd3ss3220)
+{
+ int err;
+
+ hd3ss3220_set_role(hd3ss3220);
+ err = regmap_update_bits_base(hd3ss3220->regmap,
+ HD3SS3220_REG_CN_STAT_CTRL,
+ HD3SS3220_REG_CN_STAT_CTRL_INT_STATUS,
+ HD3SS3220_REG_CN_STAT_CTRL_INT_STATUS,
+ NULL, false, true);
+ if (err < 0)
+ return IRQ_NONE;
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t hd3ss3220_irq_handler(int irq, void *data)
+{
+ struct i2c_client *client = to_i2c_client(data);
+ struct hd3ss3220 *hd3ss3220 = i2c_get_clientdata(client);
+
+ return hd3ss3220_irq(hd3ss3220);
+}
+
+static const struct regmap_config config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0x0A,
+};
+
+static int hd3ss3220_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct typec_capability typec_cap = { };
+ struct hd3ss3220 *hd3ss3220;
+ struct fwnode_handle *connector;
+ int ret;
+ unsigned int data;
+
+ hd3ss3220 = devm_kzalloc(&client->dev, sizeof(struct hd3ss3220),
+ GFP_KERNEL);
+ if (!hd3ss3220)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, hd3ss3220);
+
+ hd3ss3220->dev = &client->dev;
+ hd3ss3220->regmap = devm_regmap_init_i2c(client, &config);
+ if (IS_ERR(hd3ss3220->regmap))
+ return PTR_ERR(hd3ss3220->regmap);
+
+ hd3ss3220_set_source_pref(hd3ss3220,
+ HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT);
+ connector = device_get_named_child_node(hd3ss3220->dev, "connector");
+ if (!connector)
+ return -ENODEV;
+
+ hd3ss3220->role_sw = fwnode_usb_role_switch_get(connector);
+ if (IS_ERR(hd3ss3220->role_sw)) {
+ ret = PTR_ERR(hd3ss3220->role_sw);
+ goto err_put_fwnode;
+ }
+
+ typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
+ typec_cap.driver_data = hd3ss3220;
+ typec_cap.type = TYPEC_PORT_DRP;
+ typec_cap.data = TYPEC_PORT_DRD;
+ typec_cap.ops = &hd3ss3220_ops;
+ typec_cap.fwnode = connector;
+
+ hd3ss3220->port = typec_register_port(&client->dev, &typec_cap);
+ if (IS_ERR(hd3ss3220->port)) {
+ ret = PTR_ERR(hd3ss3220->port);
+ goto err_put_role;
+ }
+
+ hd3ss3220_set_role(hd3ss3220);
+ ret = regmap_read(hd3ss3220->regmap, HD3SS3220_REG_CN_STAT_CTRL, &data);
+ if (ret < 0)
+ goto err_unreg_port;
+
+ if (data & HD3SS3220_REG_CN_STAT_CTRL_INT_STATUS) {
+ ret = regmap_write(hd3ss3220->regmap,
+ HD3SS3220_REG_CN_STAT_CTRL,
+ data | HD3SS3220_REG_CN_STAT_CTRL_INT_STATUS);
+ if (ret < 0)
+ goto err_unreg_port;
+ }
+
+ if (client->irq > 0) {
+ ret = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+ hd3ss3220_irq_handler,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "hd3ss3220", &client->dev);
+ if (ret)
+ goto err_unreg_port;
+ }
+
+ ret = i2c_smbus_read_byte_data(client, HD3SS3220_REG_DEV_REV);
+ if (ret < 0)
+ goto err_unreg_port;
+
+ fwnode_handle_put(connector);
+
+ dev_info(&client->dev, "probed revision=0x%x\n", ret);
+
+ return 0;
+err_unreg_port:
+ typec_unregister_port(hd3ss3220->port);
+err_put_role:
+ usb_role_switch_put(hd3ss3220->role_sw);
+err_put_fwnode:
+ fwnode_handle_put(connector);
+
+ return ret;
+}
+
+static int hd3ss3220_remove(struct i2c_client *client)
+{
+ struct hd3ss3220 *hd3ss3220 = i2c_get_clientdata(client);
+
+ typec_unregister_port(hd3ss3220->port);
+ usb_role_switch_put(hd3ss3220->role_sw);
+
+ return 0;
+}
+
+static const struct of_device_id dev_ids[] = {
+ { .compatible = "ti,hd3ss3220"},
+ {}
+};
+MODULE_DEVICE_TABLE(of, dev_ids);
+
+static struct i2c_driver hd3ss3220_driver = {
+ .driver = {
+ .name = "hd3ss3220",
+ .of_match_table = of_match_ptr(dev_ids),
+ },
+ .probe = hd3ss3220_probe,
+ .remove = hd3ss3220_remove,
+};
+
+module_i2c_driver(hd3ss3220_driver);
+
+MODULE_AUTHOR("Biju Das <biju.das@bp.renesas.com>");
+MODULE_DESCRIPTION("TI HD3SS3220 DRP Port Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 5f61d9977a15..56fc356bc55c 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -380,9 +380,6 @@ static enum tcpm_state tcpm_default_state(struct tcpm_port *port)
return SNK_UNATTACHED;
else if (port->try_role == TYPEC_SOURCE)
return SRC_UNATTACHED;
- else if (port->tcpc->config &&
- port->tcpc->config->default_role == TYPEC_SINK)
- return SNK_UNATTACHED;
/* Fall through to return SRC_UNATTACHED */
} else if (port->port_type == TYPEC_PORT_SNK) {
return SNK_UNATTACHED;
@@ -390,12 +387,6 @@ static enum tcpm_state tcpm_default_state(struct tcpm_port *port)
return SRC_UNATTACHED;
}
-static inline
-struct tcpm_port *typec_cap_to_tcpm(const struct typec_capability *cap)
-{
- return container_of(cap, struct tcpm_port, typec_caps);
-}
-
static bool tcpm_port_is_disconnected(struct tcpm_port *port)
{
return (!port->attached && port->cc1 == TYPEC_CC_OPEN &&
@@ -3970,10 +3961,9 @@ void tcpm_pd_hard_reset(struct tcpm_port *port)
}
EXPORT_SYMBOL_GPL(tcpm_pd_hard_reset);
-static int tcpm_dr_set(const struct typec_capability *cap,
- enum typec_data_role data)
+static int tcpm_dr_set(struct typec_port *p, enum typec_data_role data)
{
- struct tcpm_port *port = typec_cap_to_tcpm(cap);
+ struct tcpm_port *port = typec_get_drvdata(p);
int ret;
mutex_lock(&port->swap_lock);
@@ -4038,10 +4028,9 @@ swap_unlock:
return ret;
}
-static int tcpm_pr_set(const struct typec_capability *cap,
- enum typec_role role)
+static int tcpm_pr_set(struct typec_port *p, enum typec_role role)
{
- struct tcpm_port *port = typec_cap_to_tcpm(cap);
+ struct tcpm_port *port = typec_get_drvdata(p);
int ret;
mutex_lock(&port->swap_lock);
@@ -4082,10 +4071,9 @@ swap_unlock:
return ret;
}
-static int tcpm_vconn_set(const struct typec_capability *cap,
- enum typec_role role)
+static int tcpm_vconn_set(struct typec_port *p, enum typec_role role)
{
- struct tcpm_port *port = typec_cap_to_tcpm(cap);
+ struct tcpm_port *port = typec_get_drvdata(p);
int ret;
mutex_lock(&port->swap_lock);
@@ -4122,16 +4110,16 @@ swap_unlock:
return ret;
}
-static int tcpm_try_role(const struct typec_capability *cap, int role)
+static int tcpm_try_role(struct typec_port *p, int role)
{
- struct tcpm_port *port = typec_cap_to_tcpm(cap);
+ struct tcpm_port *port = typec_get_drvdata(p);
struct tcpc_dev *tcpc = port->tcpc;
int ret = 0;
mutex_lock(&port->lock);
if (tcpc->try_role)
ret = tcpc->try_role(tcpc, role);
- if (!ret && (!tcpc->config || !tcpc->config->try_role_hw))
+ if (!ret)
port->try_role = role;
port->try_src_count = 0;
port->try_snk_count = 0;
@@ -4331,10 +4319,9 @@ static void tcpm_init(struct tcpm_port *port)
tcpm_set_state(port, PORT_RESET, 0);
}
-static int tcpm_port_type_set(const struct typec_capability *cap,
- enum typec_port_type type)
+static int tcpm_port_type_set(struct typec_port *p, enum typec_port_type type)
{
- struct tcpm_port *port = typec_cap_to_tcpm(cap);
+ struct tcpm_port *port = typec_get_drvdata(p);
mutex_lock(&port->lock);
if (type == port->port_type)
@@ -4359,6 +4346,14 @@ port_unlock:
return 0;
}
+static const struct typec_operations tcpm_ops = {
+ .try_role = tcpm_try_role,
+ .dr_set = tcpm_dr_set,
+ .pr_set = tcpm_pr_set,
+ .vconn_set = tcpm_vconn_set,
+ .port_type_set = tcpm_port_type_set
+};
+
void tcpm_tcpc_reset(struct tcpm_port *port)
{
mutex_lock(&port->lock);
@@ -4368,34 +4363,6 @@ void tcpm_tcpc_reset(struct tcpm_port *port)
}
EXPORT_SYMBOL_GPL(tcpm_tcpc_reset);
-static int tcpm_copy_pdos(u32 *dest_pdo, const u32 *src_pdo,
- unsigned int nr_pdo)
-{
- unsigned int i;
-
- if (nr_pdo > PDO_MAX_OBJECTS)
- nr_pdo = PDO_MAX_OBJECTS;
-
- for (i = 0; i < nr_pdo; i++)
- dest_pdo[i] = src_pdo[i];
-
- return nr_pdo;
-}
-
-static int tcpm_copy_vdos(u32 *dest_vdo, const u32 *src_vdo,
- unsigned int nr_vdo)
-{
- unsigned int i;
-
- if (nr_vdo > VDO_MAX_OBJECTS)
- nr_vdo = VDO_MAX_OBJECTS;
-
- for (i = 0; i < nr_vdo; i++)
- dest_vdo[i] = src_vdo[i];
-
- return nr_vdo;
-}
-
static int tcpm_fw_get_caps(struct tcpm_port *port,
struct fwnode_handle *fwnode)
{
@@ -4698,35 +4665,10 @@ static int devm_tcpm_psy_register(struct tcpm_port *port)
return PTR_ERR_OR_ZERO(port->psy);
}
-static int tcpm_copy_caps(struct tcpm_port *port,
- const struct tcpc_config *tcfg)
-{
- if (tcpm_validate_caps(port, tcfg->src_pdo, tcfg->nr_src_pdo) ||
- tcpm_validate_caps(port, tcfg->snk_pdo, tcfg->nr_snk_pdo))
- return -EINVAL;
-
- port->nr_src_pdo = tcpm_copy_pdos(port->src_pdo, tcfg->src_pdo,
- tcfg->nr_src_pdo);
- port->nr_snk_pdo = tcpm_copy_pdos(port->snk_pdo, tcfg->snk_pdo,
- tcfg->nr_snk_pdo);
-
- port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcfg->snk_vdo,
- tcfg->nr_snk_vdo);
-
- port->operating_snk_mw = tcfg->operating_snk_mw;
-
- port->typec_caps.prefer_role = tcfg->default_role;
- port->typec_caps.type = tcfg->type;
- port->typec_caps.data = tcfg->data;
- port->self_powered = tcfg->self_powered;
-
- return 0;
-}
-
struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
{
struct tcpm_port *port;
- int i, err;
+ int err;
if (!dev || !tcpc ||
!tcpc->get_vbus || !tcpc->set_cc || !tcpc->get_cc ||
@@ -4759,24 +4701,16 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
tcpm_debugfs_init(port);
err = tcpm_fw_get_caps(port, tcpc->fwnode);
- if ((err < 0) && tcpc->config)
- err = tcpm_copy_caps(port, tcpc->config);
if (err < 0)
goto out_destroy_wq;
- if (!tcpc->config || !tcpc->config->try_role_hw)
- port->try_role = port->typec_caps.prefer_role;
- else
- port->try_role = TYPEC_NO_PREFERRED_ROLE;
+ port->try_role = port->typec_caps.prefer_role;
port->typec_caps.fwnode = tcpc->fwnode;
port->typec_caps.revision = 0x0120; /* Type-C spec release 1.2 */
port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */
- port->typec_caps.dr_set = tcpm_dr_set;
- port->typec_caps.pr_set = tcpm_pr_set;
- port->typec_caps.vconn_set = tcpm_vconn_set;
- port->typec_caps.try_role = tcpm_try_role;
- port->typec_caps.port_type_set = tcpm_port_type_set;
+ port->typec_caps.driver_data = port;
+ port->typec_caps.ops = &tcpm_ops;
port->partner_desc.identity = &port->partner_ident;
port->port_type = port->typec_caps.type;
@@ -4797,29 +4731,6 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
goto out_role_sw_put;
}
- if (tcpc->config && tcpc->config->alt_modes) {
- const struct typec_altmode_desc *paltmode = tcpc->config->alt_modes;
-
- i = 0;
- while (paltmode->svid && i < ARRAY_SIZE(port->port_altmode)) {
- struct typec_altmode *alt;
-
- alt = typec_port_register_altmode(port->typec_port,
- paltmode);
- if (IS_ERR(alt)) {
- tcpm_log(port,
- "%s: failed to register port alternate mode 0x%x",
- dev_name(dev), paltmode->svid);
- break;
- }
- typec_altmode_set_drvdata(alt, port);
- alt->ops = &tcpm_altmode_ops;
- port->port_altmode[i] = alt;
- i++;
- paltmode++;
- }
- }
-
mutex_lock(&port->lock);
tcpm_init(port);
mutex_unlock(&port->lock);
diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c
index a38d1409f15b..0698addd1185 100644
--- a/drivers/usb/typec/tps6598x.c
+++ b/drivers/usb/typec/tps6598x.c
@@ -94,7 +94,6 @@ struct tps6598x {
struct typec_port *port;
struct typec_partner *partner;
struct usb_pd_identity partner_identity;
- struct typec_capability typec_cap;
};
/*
@@ -307,11 +306,10 @@ static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
return 0;
}
-static int
-tps6598x_dr_set(const struct typec_capability *cap, enum typec_data_role role)
+static int tps6598x_dr_set(struct typec_port *port, enum typec_data_role role)
{
- struct tps6598x *tps = container_of(cap, struct tps6598x, typec_cap);
const char *cmd = (role == TYPEC_DEVICE) ? "SWUF" : "SWDF";
+ struct tps6598x *tps = typec_get_drvdata(port);
u32 status;
int ret;
@@ -338,11 +336,10 @@ out_unlock:
return ret;
}
-static int
-tps6598x_pr_set(const struct typec_capability *cap, enum typec_role role)
+static int tps6598x_pr_set(struct typec_port *port, enum typec_role role)
{
- struct tps6598x *tps = container_of(cap, struct tps6598x, typec_cap);
const char *cmd = (role == TYPEC_SINK) ? "SWSk" : "SWSr";
+ struct tps6598x *tps = typec_get_drvdata(port);
u32 status;
int ret;
@@ -369,6 +366,11 @@ out_unlock:
return ret;
}
+static const struct typec_operations tps6598x_ops = {
+ .dr_set = tps6598x_dr_set,
+ .pr_set = tps6598x_pr_set,
+};
+
static irqreturn_t tps6598x_interrupt(int irq, void *data)
{
struct tps6598x *tps = data;
@@ -448,6 +450,7 @@ static const struct regmap_config tps6598x_regmap_config = {
static int tps6598x_probe(struct i2c_client *client)
{
+ struct typec_capability typec_cap = { };
struct tps6598x *tps;
u32 status;
u32 conf;
@@ -492,40 +495,40 @@ static int tps6598x_probe(struct i2c_client *client)
if (ret < 0)
return ret;
- tps->typec_cap.revision = USB_TYPEC_REV_1_2;
- tps->typec_cap.pd_revision = 0x200;
- tps->typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
- tps->typec_cap.pr_set = tps6598x_pr_set;
- tps->typec_cap.dr_set = tps6598x_dr_set;
+ typec_cap.revision = USB_TYPEC_REV_1_2;
+ typec_cap.pd_revision = 0x200;
+ typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
+ typec_cap.driver_data = tps;
+ typec_cap.ops = &tps6598x_ops;
switch (TPS_SYSCONF_PORTINFO(conf)) {
case TPS_PORTINFO_SINK_ACCESSORY:
case TPS_PORTINFO_SINK:
- tps->typec_cap.type = TYPEC_PORT_SNK;
- tps->typec_cap.data = TYPEC_PORT_UFP;
+ typec_cap.type = TYPEC_PORT_SNK;
+ typec_cap.data = TYPEC_PORT_UFP;
break;
case TPS_PORTINFO_DRP_UFP_DRD:
case TPS_PORTINFO_DRP_DFP_DRD:
- tps->typec_cap.type = TYPEC_PORT_DRP;
- tps->typec_cap.data = TYPEC_PORT_DRD;
+ typec_cap.type = TYPEC_PORT_DRP;
+ typec_cap.data = TYPEC_PORT_DRD;
break;
case TPS_PORTINFO_DRP_UFP:
- tps->typec_cap.type = TYPEC_PORT_DRP;
- tps->typec_cap.data = TYPEC_PORT_UFP;
+ typec_cap.type = TYPEC_PORT_DRP;
+ typec_cap.data = TYPEC_PORT_UFP;
break;
case TPS_PORTINFO_DRP_DFP:
- tps->typec_cap.type = TYPEC_PORT_DRP;
- tps->typec_cap.data = TYPEC_PORT_DFP;
+ typec_cap.type = TYPEC_PORT_DRP;
+ typec_cap.data = TYPEC_PORT_DFP;
break;
case TPS_PORTINFO_SOURCE:
- tps->typec_cap.type = TYPEC_PORT_SRC;
- tps->typec_cap.data = TYPEC_PORT_DFP;
+ typec_cap.type = TYPEC_PORT_SRC;
+ typec_cap.data = TYPEC_PORT_DFP;
break;
default:
return -ENODEV;
}
- tps->port = typec_register_port(&client->dev, &tps->typec_cap);
+ tps->port = typec_register_port(&client->dev, &typec_cap);
if (IS_ERR(tps->port))
return PTR_ERR(tps->port);
diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c
index d99700cb4dca..d4d5189edfb8 100644
--- a/drivers/usb/typec/ucsi/displayport.c
+++ b/drivers/usb/typec/ucsi/displayport.c
@@ -48,7 +48,8 @@ struct ucsi_dp {
static int ucsi_displayport_enter(struct typec_altmode *alt)
{
struct ucsi_dp *dp = typec_altmode_get_drvdata(alt);
- struct ucsi_control ctrl;
+ struct ucsi *ucsi = dp->con->ucsi;
+ u64 command;
u8 cur = 0;
int ret;
@@ -59,25 +60,21 @@ static int ucsi_displayport_enter(struct typec_altmode *alt)
dev_warn(&p->dev,
"firmware doesn't support alternate mode overriding\n");
- mutex_unlock(&dp->con->lock);
- return -EOPNOTSUPP;
+ ret = -EOPNOTSUPP;
+ goto err_unlock;
}
- UCSI_CMD_GET_CURRENT_CAM(ctrl, dp->con->num);
- ret = ucsi_send_command(dp->con->ucsi, &ctrl, &cur, sizeof(cur));
+ command = UCSI_GET_CURRENT_CAM | UCSI_CONNECTOR_NUMBER(dp->con->num);
+ ret = ucsi_send_command(ucsi, command, &cur, sizeof(cur));
if (ret < 0) {
- if (dp->con->ucsi->ppm->data->version > 0x0100) {
- mutex_unlock(&dp->con->lock);
- return ret;
- }
+ if (ucsi->version > 0x0100)
+ goto err_unlock;
cur = 0xff;
}
if (cur != 0xff) {
- mutex_unlock(&dp->con->lock);
- if (dp->con->port_altmode[cur] == alt)
- return 0;
- return -EBUSY;
+ ret = dp->con->port_altmode[cur] == alt ? 0 : -EBUSY;
+ goto err_unlock;
}
/*
@@ -94,16 +91,17 @@ static int ucsi_displayport_enter(struct typec_altmode *alt)
dp->vdo_size = 1;
schedule_work(&dp->work);
-
+ ret = 0;
+err_unlock:
mutex_unlock(&dp->con->lock);
- return 0;
+ return ret;
}
static int ucsi_displayport_exit(struct typec_altmode *alt)
{
struct ucsi_dp *dp = typec_altmode_get_drvdata(alt);
- struct ucsi_control ctrl;
+ u64 command;
int ret = 0;
mutex_lock(&dp->con->lock);
@@ -117,8 +115,8 @@ static int ucsi_displayport_exit(struct typec_altmode *alt)
goto out_unlock;
}
- ctrl.raw_cmd = UCSI_CMD_SET_NEW_CAM(dp->con->num, 0, dp->offset, 0);
- ret = ucsi_send_command(dp->con->ucsi, &ctrl, NULL, 0);
+ command = UCSI_CMD_SET_NEW_CAM(dp->con->num, 0, dp->offset, 0);
+ ret = ucsi_send_command(dp->con->ucsi, command, NULL, 0);
if (ret < 0)
goto out_unlock;
@@ -172,14 +170,14 @@ static int ucsi_displayport_status_update(struct ucsi_dp *dp)
static int ucsi_displayport_configure(struct ucsi_dp *dp)
{
u32 pins = DP_CONF_GET_PIN_ASSIGN(dp->data.conf);
- struct ucsi_control ctrl;
+ u64 command;
if (!dp->override)
return 0;
- ctrl.raw_cmd = UCSI_CMD_SET_NEW_CAM(dp->con->num, 1, dp->offset, pins);
+ command = UCSI_CMD_SET_NEW_CAM(dp->con->num, 1, dp->offset, pins);
- return ucsi_send_command(dp->con->ucsi, &ctrl, NULL, 0);
+ return ucsi_send_command(dp->con->ucsi, command, NULL, 0);
}
static int ucsi_displayport_vdm(struct typec_altmode *alt,
diff --git a/drivers/usb/typec/ucsi/trace.c b/drivers/usb/typec/ucsi/trace.c
index 1dabafb74320..48ad1dc1b1b2 100644
--- a/drivers/usb/typec/ucsi/trace.c
+++ b/drivers/usb/typec/ucsi/trace.c
@@ -33,17 +33,6 @@ const char *ucsi_cmd_str(u64 raw_cmd)
return ucsi_cmd_strs[(cmd >= ARRAY_SIZE(ucsi_cmd_strs)) ? 0 : cmd];
}
-static const char * const ucsi_ack_strs[] = {
- [0] = "",
- [UCSI_ACK_EVENT] = "event",
- [UCSI_ACK_CMD] = "command",
-};
-
-const char *ucsi_ack_str(u8 ack)
-{
- return ucsi_ack_strs[(ack >= ARRAY_SIZE(ucsi_ack_strs)) ? 0 : ack];
-}
-
const char *ucsi_cci_str(u32 cci)
{
if (cci & GENMASK(7, 0)) {
diff --git a/drivers/usb/typec/ucsi/trace.h b/drivers/usb/typec/ucsi/trace.h
index 783ec9c72055..a0d3a934d3d9 100644
--- a/drivers/usb/typec/ucsi/trace.h
+++ b/drivers/usb/typec/ucsi/trace.h
@@ -10,54 +10,18 @@
#include <linux/usb/typec_altmode.h>
const char *ucsi_cmd_str(u64 raw_cmd);
-const char *ucsi_ack_str(u8 ack);
const char *ucsi_cci_str(u32 cci);
const char *ucsi_recipient_str(u8 recipient);
-DECLARE_EVENT_CLASS(ucsi_log_ack,
- TP_PROTO(u8 ack),
- TP_ARGS(ack),
- TP_STRUCT__entry(
- __field(u8, ack)
- ),
- TP_fast_assign(
- __entry->ack = ack;
- ),
- TP_printk("ACK %s", ucsi_ack_str(__entry->ack))
-);
-
-DEFINE_EVENT(ucsi_log_ack, ucsi_ack,
- TP_PROTO(u8 ack),
- TP_ARGS(ack)
-);
-
-DECLARE_EVENT_CLASS(ucsi_log_control,
- TP_PROTO(struct ucsi_control *ctrl),
- TP_ARGS(ctrl),
- TP_STRUCT__entry(
- __field(u64, ctrl)
- ),
- TP_fast_assign(
- __entry->ctrl = ctrl->raw_cmd;
- ),
- TP_printk("control=%08llx (%s)", __entry->ctrl,
- ucsi_cmd_str(__entry->ctrl))
-);
-
-DEFINE_EVENT(ucsi_log_control, ucsi_command,
- TP_PROTO(struct ucsi_control *ctrl),
- TP_ARGS(ctrl)
-);
-
DECLARE_EVENT_CLASS(ucsi_log_command,
- TP_PROTO(struct ucsi_control *ctrl, int ret),
- TP_ARGS(ctrl, ret),
+ TP_PROTO(u64 command, int ret),
+ TP_ARGS(command, ret),
TP_STRUCT__entry(
__field(u64, ctrl)
__field(int, ret)
),
TP_fast_assign(
- __entry->ctrl = ctrl->raw_cmd;
+ __entry->ctrl = command;
__entry->ret = ret;
),
TP_printk("%s -> %s (err=%d)", ucsi_cmd_str(__entry->ctrl),
@@ -66,30 +30,13 @@ DECLARE_EVENT_CLASS(ucsi_log_command,
);
DEFINE_EVENT(ucsi_log_command, ucsi_run_command,
- TP_PROTO(struct ucsi_control *ctrl, int ret),
- TP_ARGS(ctrl, ret)
+ TP_PROTO(u64 command, int ret),
+ TP_ARGS(command, ret)
);
DEFINE_EVENT(ucsi_log_command, ucsi_reset_ppm,
- TP_PROTO(struct ucsi_control *ctrl, int ret),
- TP_ARGS(ctrl, ret)
-);
-
-DECLARE_EVENT_CLASS(ucsi_log_cci,
- TP_PROTO(u32 cci),
- TP_ARGS(cci),
- TP_STRUCT__entry(
- __field(u32, cci)
- ),
- TP_fast_assign(
- __entry->cci = cci;
- ),
- TP_printk("CCI=%08x %s", __entry->cci, ucsi_cci_str(__entry->cci))
-);
-
-DEFINE_EVENT(ucsi_log_cci, ucsi_notify,
- TP_PROTO(u32 cci),
- TP_ARGS(cci)
+ TP_PROTO(u64 command, int ret),
+ TP_ARGS(command, ret)
);
DECLARE_EVENT_CLASS(ucsi_log_connector_status,
@@ -109,13 +56,13 @@ DECLARE_EVENT_CLASS(ucsi_log_connector_status,
TP_fast_assign(
__entry->port = port - 1;
__entry->change = status->change;
- __entry->opmode = status->pwr_op_mode;
- __entry->connected = status->connected;
- __entry->pwr_dir = status->pwr_dir;
- __entry->partner_flags = status->partner_flags;
- __entry->partner_type = status->partner_type;
+ __entry->opmode = UCSI_CONSTAT_PWR_OPMODE(status->flags);
+ __entry->connected = !!(status->flags & UCSI_CONSTAT_CONNECTED);
+ __entry->pwr_dir = !!(status->flags & UCSI_CONSTAT_PWR_DIR);
+ __entry->partner_flags = UCSI_CONSTAT_PARTNER_FLAGS(status->flags);
+ __entry->partner_type = UCSI_CONSTAT_PARTNER_TYPE(status->flags);
__entry->request_data_obj = status->request_data_obj;
- __entry->bc_status = status->bc_status;
+ __entry->bc_status = UCSI_CONSTAT_BC_STATUS(status->pwr_status);
),
TP_printk("port%d status: change=%04x, opmode=%x, connected=%d, "
"sourcing=%d, partner_flags=%x, partner_type=%x, "
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index ba288b964dc8..4459bc68aa33 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -17,9 +17,6 @@
#include "ucsi.h"
#include "trace.h"
-#define to_ucsi_connector(_cap_) container_of(_cap_, struct ucsi_connector, \
- typec_cap)
-
/*
* UCSI_TIMEOUT_MS - PPM communication timeout
*
@@ -39,169 +36,148 @@
*/
#define UCSI_SWAP_TIMEOUT_MS 5000
-static inline int ucsi_sync(struct ucsi *ucsi)
+static int ucsi_acknowledge_command(struct ucsi *ucsi)
{
- if (ucsi->ppm && ucsi->ppm->sync)
- return ucsi->ppm->sync(ucsi->ppm);
- return 0;
+ u64 ctrl;
+
+ ctrl = UCSI_ACK_CC_CI;
+ ctrl |= UCSI_ACK_COMMAND_COMPLETE;
+
+ return ucsi->ops->sync_write(ucsi, UCSI_CONTROL, &ctrl, sizeof(ctrl));
+}
+
+static int ucsi_acknowledge_connector_change(struct ucsi *ucsi)
+{
+ u64 ctrl;
+
+ ctrl = UCSI_ACK_CC_CI;
+ ctrl |= UCSI_ACK_CONNECTOR_CHANGE;
+
+ return ucsi->ops->async_write(ucsi, UCSI_CONTROL, &ctrl, sizeof(ctrl));
}
-static int ucsi_command(struct ucsi *ucsi, struct ucsi_control *ctrl)
+static int ucsi_exec_command(struct ucsi *ucsi, u64 command);
+
+static int ucsi_read_error(struct ucsi *ucsi)
{
+ u16 error;
int ret;
- trace_ucsi_command(ctrl);
+ /* Acknowlege the command that failed */
+ ret = ucsi_acknowledge_command(ucsi);
+ if (ret)
+ return ret;
- set_bit(COMMAND_PENDING, &ucsi->flags);
+ ret = ucsi_exec_command(ucsi, UCSI_GET_ERROR_STATUS);
+ if (ret < 0)
+ return ret;
- ret = ucsi->ppm->cmd(ucsi->ppm, ctrl);
+ ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, &error, sizeof(error));
if (ret)
- goto err_clear_flag;
+ return ret;
- if (!wait_for_completion_timeout(&ucsi->complete,
- msecs_to_jiffies(UCSI_TIMEOUT_MS))) {
- dev_warn(ucsi->dev, "PPM NOT RESPONDING\n");
- ret = -ETIMEDOUT;
+ switch (error) {
+ case UCSI_ERROR_INCOMPATIBLE_PARTNER:
+ return -EOPNOTSUPP;
+ case UCSI_ERROR_CC_COMMUNICATION_ERR:
+ return -ECOMM;
+ case UCSI_ERROR_CONTRACT_NEGOTIATION_FAIL:
+ return -EPROTO;
+ case UCSI_ERROR_DEAD_BATTERY:
+ dev_warn(ucsi->dev, "Dead battery condition!\n");
+ return -EPERM;
+ case UCSI_ERROR_INVALID_CON_NUM:
+ case UCSI_ERROR_UNREGONIZED_CMD:
+ case UCSI_ERROR_INVALID_CMD_ARGUMENT:
+ dev_err(ucsi->dev, "possible UCSI driver bug %u\n", error);
+ return -EINVAL;
+ case UCSI_ERROR_OVERCURRENT:
+ dev_warn(ucsi->dev, "Overcurrent condition\n");
+ break;
+ case UCSI_ERROR_PARTNER_REJECTED_SWAP:
+ dev_warn(ucsi->dev, "Partner rejected swap\n");
+ break;
+ case UCSI_ERROR_HARD_RESET:
+ dev_warn(ucsi->dev, "Hard reset occurred\n");
+ break;
+ case UCSI_ERROR_PPM_POLICY_CONFLICT:
+ dev_warn(ucsi->dev, "PPM Policy conflict\n");
+ break;
+ case UCSI_ERROR_SWAP_REJECTED:
+ dev_warn(ucsi->dev, "Swap rejected\n");
+ break;
+ case UCSI_ERROR_UNDEFINED:
+ default:
+ dev_err(ucsi->dev, "unknown error %u\n", error);
+ break;
}
-err_clear_flag:
- clear_bit(COMMAND_PENDING, &ucsi->flags);
-
- return ret;
+ return -EIO;
}
-static int ucsi_ack(struct ucsi *ucsi, u8 ack)
+static int ucsi_exec_command(struct ucsi *ucsi, u64 cmd)
{
- struct ucsi_control ctrl;
+ u32 cci;
int ret;
- trace_ucsi_ack(ack);
-
- set_bit(ACK_PENDING, &ucsi->flags);
+ ret = ucsi->ops->sync_write(ucsi, UCSI_CONTROL, &cmd, sizeof(cmd));
+ if (ret)
+ return ret;
- UCSI_CMD_ACK(ctrl, ack);
- ret = ucsi->ppm->cmd(ucsi->ppm, &ctrl);
+ ret = ucsi->ops->read(ucsi, UCSI_CCI, &cci, sizeof(cci));
if (ret)
- goto out_clear_bit;
+ return ret;
- /* Waiting for ACK with ACK CMD, but not with EVENT for now */
- if (ack == UCSI_ACK_EVENT)
- goto out_clear_bit;
+ if (cci & UCSI_CCI_BUSY)
+ return -EBUSY;
- if (!wait_for_completion_timeout(&ucsi->complete,
- msecs_to_jiffies(UCSI_TIMEOUT_MS)))
- ret = -ETIMEDOUT;
+ if (!(cci & UCSI_CCI_COMMAND_COMPLETE))
+ return -EIO;
-out_clear_bit:
- clear_bit(ACK_PENDING, &ucsi->flags);
+ if (cci & UCSI_CCI_NOT_SUPPORTED)
+ return -EOPNOTSUPP;
- if (ret)
- dev_err(ucsi->dev, "%s: failed\n", __func__);
+ if (cci & UCSI_CCI_ERROR) {
+ if (cmd == UCSI_GET_ERROR_STATUS)
+ return -EIO;
+ return ucsi_read_error(ucsi);
+ }
- return ret;
+ return UCSI_CCI_LENGTH(cci);
}
-static int ucsi_run_command(struct ucsi *ucsi, struct ucsi_control *ctrl,
+static int ucsi_run_command(struct ucsi *ucsi, u64 command,
void *data, size_t size)
{
- struct ucsi_control _ctrl;
- u8 data_length;
- u16 error;
+ u8 length;
int ret;
- ret = ucsi_command(ucsi, ctrl);
- if (ret)
- goto err;
-
- switch (ucsi->status) {
- case UCSI_IDLE:
- ret = ucsi_sync(ucsi);
- if (ret)
- dev_warn(ucsi->dev, "%s: sync failed\n", __func__);
-
- if (data)
- memcpy(data, ucsi->ppm->data->message_in, size);
-
- data_length = ucsi->ppm->data->cci.data_length;
-
- ret = ucsi_ack(ucsi, UCSI_ACK_CMD);
- if (!ret)
- ret = data_length;
- break;
- case UCSI_BUSY:
- /* The caller decides whether to cancel or not */
- ret = -EBUSY;
- break;
- case UCSI_ERROR:
- ret = ucsi_ack(ucsi, UCSI_ACK_CMD);
- if (ret)
- break;
-
- _ctrl.raw_cmd = 0;
- _ctrl.cmd.cmd = UCSI_GET_ERROR_STATUS;
- ret = ucsi_command(ucsi, &_ctrl);
- if (ret) {
- dev_err(ucsi->dev, "reading error failed!\n");
- break;
- }
+ ret = ucsi_exec_command(ucsi, command);
+ if (ret < 0)
+ return ret;
- memcpy(&error, ucsi->ppm->data->message_in, sizeof(error));
+ length = ret;
- /* Something has really gone wrong */
- if (WARN_ON(ucsi->status == UCSI_ERROR)) {
- ret = -ENODEV;
- break;
- }
-
- ret = ucsi_ack(ucsi, UCSI_ACK_CMD);
+ if (data) {
+ ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, data, size);
if (ret)
- break;
-
- switch (error) {
- case UCSI_ERROR_INCOMPATIBLE_PARTNER:
- ret = -EOPNOTSUPP;
- break;
- case UCSI_ERROR_CC_COMMUNICATION_ERR:
- ret = -ECOMM;
- break;
- case UCSI_ERROR_CONTRACT_NEGOTIATION_FAIL:
- ret = -EPROTO;
- break;
- case UCSI_ERROR_DEAD_BATTERY:
- dev_warn(ucsi->dev, "Dead battery condition!\n");
- ret = -EPERM;
- break;
- /* The following mean a bug in this driver */
- case UCSI_ERROR_INVALID_CON_NUM:
- case UCSI_ERROR_UNREGONIZED_CMD:
- case UCSI_ERROR_INVALID_CMD_ARGUMENT:
- dev_warn(ucsi->dev,
- "%s: possible UCSI driver bug - error 0x%x\n",
- __func__, error);
- ret = -EINVAL;
- break;
- default:
- dev_warn(ucsi->dev,
- "%s: error without status\n", __func__);
- ret = -EIO;
- break;
- }
- break;
+ return ret;
}
-err:
- trace_ucsi_run_command(ctrl, ret);
+ ret = ucsi_acknowledge_command(ucsi);
+ if (ret)
+ return ret;
- return ret;
+ return length;
}
-int ucsi_send_command(struct ucsi *ucsi, struct ucsi_control *ctrl,
+int ucsi_send_command(struct ucsi *ucsi, u64 command,
void *retval, size_t size)
{
int ret;
mutex_lock(&ucsi->ppm_lock);
- ret = ucsi_run_command(ucsi, ctrl, retval, size);
+ ret = ucsi_run_command(ucsi, command, retval, size);
mutex_unlock(&ucsi->ppm_lock);
return ret;
@@ -210,11 +186,12 @@ EXPORT_SYMBOL_GPL(ucsi_send_command);
int ucsi_resume(struct ucsi *ucsi)
{
- struct ucsi_control ctrl;
+ u64 command;
/* Restore UCSI notification enable mask after system resume */
- UCSI_CMD_SET_NTFY_ENABLE(ctrl, UCSI_ENABLE_NTFY_ALL);
- return ucsi_send_command(ucsi, &ctrl, NULL, 0);
+ command = UCSI_SET_NOTIFICATION_ENABLE | UCSI_ENABLE_NTFY_ALL;
+
+ return ucsi_send_command(ucsi, command, NULL, 0);
}
EXPORT_SYMBOL_GPL(ucsi_resume);
/* -------------------------------------------------------------------------- */
@@ -222,15 +199,15 @@ EXPORT_SYMBOL_GPL(ucsi_resume);
void ucsi_altmode_update_active(struct ucsi_connector *con)
{
const struct typec_altmode *altmode = NULL;
- struct ucsi_control ctrl;
+ u64 command;
int ret;
u8 cur;
int i;
- UCSI_CMD_GET_CURRENT_CAM(ctrl, con->num);
- ret = ucsi_run_command(con->ucsi, &ctrl, &cur, sizeof(cur));
+ command = UCSI_GET_CURRENT_CAM | UCSI_CONNECTOR_NUMBER(con->num);
+ ret = ucsi_run_command(con->ucsi, command, &cur, sizeof(cur));
if (ret < 0) {
- if (con->ucsi->ppm->data->version > 0x0100) {
+ if (con->ucsi->version > 0x0100) {
dev_err(con->ucsi->dev,
"GET_CURRENT_CAM command failed\n");
return;
@@ -346,7 +323,7 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient)
int max_altmodes = UCSI_MAX_ALTMODES;
struct typec_altmode_desc desc;
struct ucsi_altmode alt[2];
- struct ucsi_control ctrl;
+ u64 command;
int num = 1;
int ret;
int len;
@@ -364,8 +341,11 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient)
for (i = 0; i < max_altmodes;) {
memset(alt, 0, sizeof(alt));
- UCSI_CMD_GET_ALTERNATE_MODES(ctrl, recipient, con->num, i, 1);
- len = ucsi_run_command(con->ucsi, &ctrl, alt, sizeof(alt));
+ command = UCSI_GET_ALTERNATE_MODES;
+ command |= UCSI_GET_ALTMODE_RECIPIENT(recipient);
+ command |= UCSI_GET_ALTMODE_CONNECTOR_NUMBER(con->num);
+ command |= UCSI_GET_ALTMODE_OFFSET(i);
+ len = ucsi_run_command(con->ucsi, command, alt, sizeof(alt));
if (len <= 0)
return len;
@@ -427,7 +407,7 @@ static void ucsi_unregister_altmodes(struct ucsi_connector *con, u8 recipient)
static void ucsi_pwr_opmode_change(struct ucsi_connector *con)
{
- switch (con->status.pwr_op_mode) {
+ switch (UCSI_CONSTAT_PWR_OPMODE(con->status.flags)) {
case UCSI_CONSTAT_PWR_OPMODE_PD:
typec_set_pwr_opmode(con->port, TYPEC_PWR_MODE_PD);
break;
@@ -445,6 +425,7 @@ static void ucsi_pwr_opmode_change(struct ucsi_connector *con)
static int ucsi_register_partner(struct ucsi_connector *con)
{
+ u8 pwr_opmode = UCSI_CONSTAT_PWR_OPMODE(con->status.flags);
struct typec_partner_desc desc;
struct typec_partner *partner;
@@ -453,7 +434,7 @@ static int ucsi_register_partner(struct ucsi_connector *con)
memset(&desc, 0, sizeof(desc));
- switch (con->status.partner_type) {
+ switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) {
case UCSI_CONSTAT_PARTNER_TYPE_DEBUG:
desc.accessory = TYPEC_ACCESSORY_DEBUG;
break;
@@ -464,7 +445,7 @@ static int ucsi_register_partner(struct ucsi_connector *con)
break;
}
- desc.usb_pd = con->status.pwr_op_mode == UCSI_CONSTAT_PWR_OPMODE_PD;
+ desc.usb_pd = pwr_opmode == UCSI_CONSTAT_PWR_OPMODE_PD;
partner = typec_register_partner(con->port, &desc);
if (IS_ERR(partner)) {
@@ -496,7 +477,7 @@ static void ucsi_partner_change(struct ucsi_connector *con)
if (!con->partner)
return;
- switch (con->status.partner_type) {
+ switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) {
case UCSI_CONSTAT_PARTNER_TYPE_UFP:
typec_set_data_role(con->port, TYPEC_HOST);
break;
@@ -521,29 +502,33 @@ static void ucsi_partner_change(struct ucsi_connector *con)
ucsi_altmode_update_active(con);
}
-static void ucsi_connector_change(struct work_struct *work)
+static void ucsi_handle_connector_change(struct work_struct *work)
{
struct ucsi_connector *con = container_of(work, struct ucsi_connector,
work);
struct ucsi *ucsi = con->ucsi;
- struct ucsi_control ctrl;
+ enum typec_role role;
+ u64 command;
int ret;
mutex_lock(&con->lock);
- UCSI_CMD_GET_CONNECTOR_STATUS(ctrl, con->num);
- ret = ucsi_send_command(ucsi, &ctrl, &con->status, sizeof(con->status));
+ command = UCSI_GET_CONNECTOR_STATUS | UCSI_CONNECTOR_NUMBER(con->num);
+ ret = ucsi_send_command(ucsi, command, &con->status,
+ sizeof(con->status));
if (ret < 0) {
dev_err(ucsi->dev, "%s: GET_CONNECTOR_STATUS failed (%d)\n",
__func__, ret);
goto out_unlock;
}
+ role = !!(con->status.flags & UCSI_CONSTAT_PWR_DIR);
+
if (con->status.change & UCSI_CONSTAT_POWER_OPMODE_CHANGE)
ucsi_pwr_opmode_change(con);
if (con->status.change & UCSI_CONSTAT_POWER_DIR_CHANGE) {
- typec_set_pwr_role(con->port, con->status.pwr_dir);
+ typec_set_pwr_role(con->port, role);
/* Complete pending power role swap */
if (!completion_done(&con->complete))
@@ -551,9 +536,9 @@ static void ucsi_connector_change(struct work_struct *work)
}
if (con->status.change & UCSI_CONSTAT_CONNECT_CHANGE) {
- typec_set_pwr_role(con->port, con->status.pwr_dir);
+ typec_set_pwr_role(con->port, role);
- switch (con->status.partner_type) {
+ switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) {
case UCSI_CONSTAT_PARTNER_TYPE_UFP:
typec_set_data_role(con->port, TYPEC_HOST);
break;
@@ -564,7 +549,7 @@ static void ucsi_connector_change(struct work_struct *work)
break;
}
- if (con->status.connected)
+ if (con->status.flags & UCSI_CONSTAT_CONNECTED)
ucsi_register_partner(con);
else
ucsi_unregister_partner(con);
@@ -576,14 +561,15 @@ static void ucsi_connector_change(struct work_struct *work)
* Running GET_CAM_SUPPORTED command just to make sure the PPM
* does not get stuck in case it assumes we do so.
*/
- UCSI_CMD_GET_CAM_SUPPORTED(ctrl, con->num);
- ucsi_run_command(con->ucsi, &ctrl, NULL, 0);
+ command = UCSI_GET_CAM_SUPPORTED;
+ command |= UCSI_CONNECTOR_NUMBER(con->num);
+ ucsi_run_command(con->ucsi, command, NULL, 0);
}
if (con->status.change & UCSI_CONSTAT_PARTNER_CHANGE)
ucsi_partner_change(con);
- ret = ucsi_ack(ucsi, UCSI_ACK_EVENT);
+ ret = ucsi_acknowledge_connector_change(ucsi);
if (ret)
dev_err(ucsi->dev, "%s: ACK failed (%d)", __func__, ret);
@@ -595,117 +581,83 @@ out_unlock:
}
/**
- * ucsi_notify - PPM notification handler
- * @ucsi: Source UCSI Interface for the notifications
- *
- * Handle notifications from PPM of @ucsi.
+ * ucsi_connector_change - Process Connector Change Event
+ * @ucsi: UCSI Interface
+ * @num: Connector number
*/
-void ucsi_notify(struct ucsi *ucsi)
+void ucsi_connector_change(struct ucsi *ucsi, u8 num)
{
- struct ucsi_cci *cci;
-
- /* There is no requirement to sync here, but no harm either. */
- ucsi_sync(ucsi);
-
- cci = &ucsi->ppm->data->cci;
-
- if (cci->error)
- ucsi->status = UCSI_ERROR;
- else if (cci->busy)
- ucsi->status = UCSI_BUSY;
- else
- ucsi->status = UCSI_IDLE;
+ struct ucsi_connector *con = &ucsi->connector[num - 1];
- if (cci->cmd_complete && test_bit(COMMAND_PENDING, &ucsi->flags)) {
- complete(&ucsi->complete);
- } else if (cci->ack_complete && test_bit(ACK_PENDING, &ucsi->flags)) {
- complete(&ucsi->complete);
- } else if (cci->connector_change) {
- struct ucsi_connector *con;
-
- con = &ucsi->connector[cci->connector_change - 1];
-
- if (!test_and_set_bit(EVENT_PENDING, &ucsi->flags))
- schedule_work(&con->work);
- }
-
- trace_ucsi_notify(ucsi->ppm->data->raw_cci);
+ if (!test_and_set_bit(EVENT_PENDING, &ucsi->flags))
+ schedule_work(&con->work);
}
-EXPORT_SYMBOL_GPL(ucsi_notify);
+EXPORT_SYMBOL_GPL(ucsi_connector_change);
/* -------------------------------------------------------------------------- */
static int ucsi_reset_connector(struct ucsi_connector *con, bool hard)
{
- struct ucsi_control ctrl;
+ u64 command;
- UCSI_CMD_CONNECTOR_RESET(ctrl, con, hard);
+ command = UCSI_CONNECTOR_RESET | UCSI_CONNECTOR_NUMBER(con->num);
+ command |= hard ? UCSI_CONNECTOR_RESET_HARD : 0;
- return ucsi_send_command(con->ucsi, &ctrl, NULL, 0);
+ return ucsi_send_command(con->ucsi, command, NULL, 0);
}
static int ucsi_reset_ppm(struct ucsi *ucsi)
{
- struct ucsi_control ctrl;
+ u64 command = UCSI_PPM_RESET;
unsigned long tmo;
+ u32 cci;
int ret;
- ctrl.raw_cmd = 0;
- ctrl.cmd.cmd = UCSI_PPM_RESET;
- trace_ucsi_command(&ctrl);
- ret = ucsi->ppm->cmd(ucsi->ppm, &ctrl);
- if (ret)
- goto err;
+ ret = ucsi->ops->async_write(ucsi, UCSI_CONTROL, &command,
+ sizeof(command));
+ if (ret < 0)
+ return ret;
tmo = jiffies + msecs_to_jiffies(UCSI_TIMEOUT_MS);
do {
- /* Here sync is critical. */
- ret = ucsi_sync(ucsi);
- if (ret)
- goto err;
+ if (time_is_before_jiffies(tmo))
+ return -ETIMEDOUT;
- if (ucsi->ppm->data->cci.reset_complete)
- break;
+ ret = ucsi->ops->read(ucsi, UCSI_CCI, &cci, sizeof(cci));
+ if (ret)
+ return ret;
/* If the PPM is still doing something else, reset it again. */
- if (ucsi->ppm->data->raw_cci) {
- dev_warn_ratelimited(ucsi->dev,
- "Failed to reset PPM! Trying again..\n");
-
- trace_ucsi_command(&ctrl);
- ret = ucsi->ppm->cmd(ucsi->ppm, &ctrl);
- if (ret)
- goto err;
+ if (cci & ~UCSI_CCI_RESET_COMPLETE) {
+ ret = ucsi->ops->async_write(ucsi, UCSI_CONTROL,
+ &command,
+ sizeof(command));
+ if (ret < 0)
+ return ret;
}
- /* Letting the PPM settle down. */
msleep(20);
+ } while (!(cci & UCSI_CCI_RESET_COMPLETE));
- ret = -ETIMEDOUT;
- } while (time_is_after_jiffies(tmo));
-
-err:
- trace_ucsi_reset_ppm(&ctrl, ret);
-
- return ret;
+ return 0;
}
-static int ucsi_role_cmd(struct ucsi_connector *con, struct ucsi_control *ctrl)
+static int ucsi_role_cmd(struct ucsi_connector *con, u64 command)
{
int ret;
- ret = ucsi_send_command(con->ucsi, ctrl, NULL, 0);
+ ret = ucsi_send_command(con->ucsi, command, NULL, 0);
if (ret == -ETIMEDOUT) {
- struct ucsi_control c;
+ u64 c;
/* PPM most likely stopped responding. Resetting everything. */
mutex_lock(&con->ucsi->ppm_lock);
ucsi_reset_ppm(con->ucsi);
mutex_unlock(&con->ucsi->ppm_lock);
- UCSI_CMD_SET_NTFY_ENABLE(c, UCSI_ENABLE_NTFY_ALL);
- ucsi_send_command(con->ucsi, &c, NULL, 0);
+ c = UCSI_SET_NOTIFICATION_ENABLE | UCSI_ENABLE_NTFY_ALL;
+ ucsi_send_command(con->ucsi, c, NULL, 0);
ucsi_reset_connector(con, true);
}
@@ -713,11 +665,11 @@ static int ucsi_role_cmd(struct ucsi_connector *con, struct ucsi_control *ctrl)
return ret;
}
-static int
-ucsi_dr_swap(const struct typec_capability *cap, enum typec_data_role role)
+static int ucsi_dr_swap(struct typec_port *port, enum typec_data_role role)
{
- struct ucsi_connector *con = to_ucsi_connector(cap);
- struct ucsi_control ctrl;
+ struct ucsi_connector *con = typec_get_drvdata(port);
+ u8 partner_type;
+ u64 command;
int ret = 0;
mutex_lock(&con->lock);
@@ -727,14 +679,17 @@ ucsi_dr_swap(const struct typec_capability *cap, enum typec_data_role role)
goto out_unlock;
}
- if ((con->status.partner_type == UCSI_CONSTAT_PARTNER_TYPE_DFP &&
+ partner_type = UCSI_CONSTAT_PARTNER_TYPE(con->status.flags);
+ if ((partner_type == UCSI_CONSTAT_PARTNER_TYPE_DFP &&
role == TYPEC_DEVICE) ||
- (con->status.partner_type == UCSI_CONSTAT_PARTNER_TYPE_UFP &&
+ (partner_type == UCSI_CONSTAT_PARTNER_TYPE_UFP &&
role == TYPEC_HOST))
goto out_unlock;
- UCSI_CMD_SET_UOR(ctrl, con, role);
- ret = ucsi_role_cmd(con, &ctrl);
+ command = UCSI_SET_UOR | UCSI_CONNECTOR_NUMBER(con->num);
+ command |= UCSI_SET_UOR_ROLE(role);
+ command |= UCSI_SET_UOR_ACCEPT_ROLE_SWAPS;
+ ret = ucsi_role_cmd(con, command);
if (ret < 0)
goto out_unlock;
@@ -748,11 +703,11 @@ out_unlock:
return ret < 0 ? ret : 0;
}
-static int
-ucsi_pr_swap(const struct typec_capability *cap, enum typec_role role)
+static int ucsi_pr_swap(struct typec_port *port, enum typec_role role)
{
- struct ucsi_connector *con = to_ucsi_connector(cap);
- struct ucsi_control ctrl;
+ struct ucsi_connector *con = typec_get_drvdata(port);
+ enum typec_role cur_role;
+ u64 command;
int ret = 0;
mutex_lock(&con->lock);
@@ -762,11 +717,15 @@ ucsi_pr_swap(const struct typec_capability *cap, enum typec_role role)
goto out_unlock;
}
- if (con->status.pwr_dir == role)
+ cur_role = !!(con->status.flags & UCSI_CONSTAT_PWR_DIR);
+
+ if (cur_role == role)
goto out_unlock;
- UCSI_CMD_SET_PDR(ctrl, con, role);
- ret = ucsi_role_cmd(con, &ctrl);
+ command = UCSI_SET_PDR | UCSI_CONNECTOR_NUMBER(con->num);
+ command |= UCSI_SET_PDR_ROLE(role);
+ command |= UCSI_SET_PDR_ACCEPT_ROLE_SWAPS;
+ ret = ucsi_role_cmd(con, command);
if (ret < 0)
goto out_unlock;
@@ -777,7 +736,8 @@ ucsi_pr_swap(const struct typec_capability *cap, enum typec_role role)
}
/* Something has gone wrong while swapping the role */
- if (con->status.pwr_op_mode != UCSI_CONSTAT_PWR_OPMODE_PD) {
+ if (UCSI_CONSTAT_PWR_OPMODE(con->status.flags) !=
+ UCSI_CONSTAT_PWR_OPMODE_PD) {
ucsi_reset_connector(con, true);
ret = -EPROTO;
}
@@ -788,6 +748,11 @@ out_unlock:
return ret;
}
+static const struct typec_operations ucsi_ops = {
+ .dr_set = ucsi_dr_swap,
+ .pr_set = ucsi_pr_swap
+};
+
static struct fwnode_handle *ucsi_find_fwnode(struct ucsi_connector *con)
{
struct fwnode_handle *fwnode;
@@ -804,18 +769,19 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
struct ucsi_connector *con = &ucsi->connector[index];
struct typec_capability *cap = &con->typec_cap;
enum typec_accessory *accessory = cap->accessory;
- struct ucsi_control ctrl;
+ u64 command;
int ret;
- INIT_WORK(&con->work, ucsi_connector_change);
+ INIT_WORK(&con->work, ucsi_handle_connector_change);
init_completion(&con->complete);
mutex_init(&con->lock);
con->num = index + 1;
con->ucsi = ucsi;
/* Get connector capability */
- UCSI_CMD_GET_CONNECTOR_CAPABILITY(ctrl, con->num);
- ret = ucsi_run_command(ucsi, &ctrl, &con->cap, sizeof(con->cap));
+ command = UCSI_GET_CONNECTOR_CAPABILITY;
+ command |= UCSI_CONNECTOR_NUMBER(con->num);
+ ret = ucsi_run_command(ucsi, command, &con->cap, sizeof(con->cap));
if (ret < 0)
return ret;
@@ -826,11 +792,12 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
else if (con->cap.op_mode & UCSI_CONCAP_OPMODE_UFP)
cap->data = TYPEC_PORT_UFP;
- if (con->cap.provider && con->cap.consumer)
+ if ((con->cap.flags & UCSI_CONCAP_FLAG_PROVIDER) &&
+ (con->cap.flags & UCSI_CONCAP_FLAG_CONSUMER))
cap->type = TYPEC_PORT_DRP;
- else if (con->cap.provider)
+ else if (con->cap.flags & UCSI_CONCAP_FLAG_PROVIDER)
cap->type = TYPEC_PORT_SRC;
- else if (con->cap.consumer)
+ else if (con->cap.flags & UCSI_CONCAP_FLAG_CONSUMER)
cap->type = TYPEC_PORT_SNK;
cap->revision = ucsi->cap.typec_version;
@@ -843,8 +810,8 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
*accessory = TYPEC_ACCESSORY_DEBUG;
cap->fwnode = ucsi_find_fwnode(con);
- cap->dr_set = ucsi_dr_swap;
- cap->pr_set = ucsi_pr_swap;
+ cap->driver_data = con;
+ cap->ops = &ucsi_ops;
/* Register the connector */
con->port = typec_register_port(ucsi->dev, cap);
@@ -858,17 +825,15 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
con->num);
/* Get the status */
- UCSI_CMD_GET_CONNECTOR_STATUS(ctrl, con->num);
- ret = ucsi_run_command(ucsi, &ctrl, &con->status, sizeof(con->status));
+ command = UCSI_GET_CONNECTOR_STATUS | UCSI_CONNECTOR_NUMBER(con->num);
+ ret = ucsi_run_command(ucsi, command, &con->status,
+ sizeof(con->status));
if (ret < 0) {
dev_err(ucsi->dev, "con%d: failed to get status\n", con->num);
return 0;
}
- ucsi_pwr_opmode_change(con);
- typec_set_pwr_role(con->port, con->status.pwr_dir);
-
- switch (con->status.partner_type) {
+ switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) {
case UCSI_CONSTAT_PARTNER_TYPE_UFP:
typec_set_data_role(con->port, TYPEC_HOST);
break;
@@ -880,8 +845,12 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
}
/* Check if there is already something connected */
- if (con->status.connected)
+ if (con->status.flags & UCSI_CONSTAT_CONNECTED) {
+ typec_set_pwr_role(con->port,
+ !!(con->status.flags & UCSI_CONSTAT_PWR_DIR));
+ ucsi_pwr_opmode_change(con);
ucsi_register_partner(con);
+ }
if (con->partner) {
ret = ucsi_register_altmodes(con, UCSI_RECIPIENT_SOP);
@@ -898,11 +867,16 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
return 0;
}
-static void ucsi_init(struct work_struct *work)
+/**
+ * ucsi_init - Initialize UCSI interface
+ * @ucsi: UCSI to be initialized
+ *
+ * Registers all ports @ucsi has and enables all notification events.
+ */
+int ucsi_init(struct ucsi *ucsi)
{
- struct ucsi *ucsi = container_of(work, struct ucsi, work);
struct ucsi_connector *con;
- struct ucsi_control ctrl;
+ u64 command;
int ret;
int i;
@@ -916,15 +890,15 @@ static void ucsi_init(struct work_struct *work)
}
/* Enable basic notifications */
- UCSI_CMD_SET_NTFY_ENABLE(ctrl, UCSI_ENABLE_NTFY_CMD_COMPLETE |
- UCSI_ENABLE_NTFY_ERROR);
- ret = ucsi_run_command(ucsi, &ctrl, NULL, 0);
+ command = UCSI_SET_NOTIFICATION_ENABLE;
+ command |= UCSI_ENABLE_NTFY_CMD_COMPLETE | UCSI_ENABLE_NTFY_ERROR;
+ ret = ucsi_run_command(ucsi, command, NULL, 0);
if (ret < 0)
goto err_reset;
/* Get PPM capabilities */
- UCSI_CMD_GET_CAPABILITY(ctrl);
- ret = ucsi_run_command(ucsi, &ctrl, &ucsi->cap, sizeof(ucsi->cap));
+ command = UCSI_GET_CAPABILITY;
+ ret = ucsi_run_command(ucsi, command, &ucsi->cap, sizeof(ucsi->cap));
if (ret < 0)
goto err_reset;
@@ -949,14 +923,14 @@ static void ucsi_init(struct work_struct *work)
}
/* Enable all notifications */
- UCSI_CMD_SET_NTFY_ENABLE(ctrl, UCSI_ENABLE_NTFY_ALL);
- ret = ucsi_run_command(ucsi, &ctrl, NULL, 0);
+ command = UCSI_SET_NOTIFICATION_ENABLE | UCSI_ENABLE_NTFY_ALL;
+ ret = ucsi_run_command(ucsi, command, NULL, 0);
if (ret < 0)
goto err_unregister;
mutex_unlock(&ucsi->ppm_lock);
- return;
+ return 0;
err_unregister:
for (con = ucsi->connector; con->port; con++) {
@@ -970,59 +944,115 @@ err_reset:
ucsi_reset_ppm(ucsi);
err:
mutex_unlock(&ucsi->ppm_lock);
- dev_err(ucsi->dev, "PPM init failed (%d)\n", ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ucsi_init);
+
+static void ucsi_init_work(struct work_struct *work)
+{
+ struct ucsi *ucsi = container_of(work, struct ucsi, work);
+ int ret;
+
+ ret = ucsi_init(ucsi);
+ if (ret)
+ dev_err(ucsi->dev, "PPM init failed (%d)\n", ret);
}
/**
- * ucsi_register_ppm - Register UCSI PPM Interface
- * @dev: Device interface to the PPM
- * @ppm: The PPM interface
- *
- * Allocates UCSI instance, associates it with @ppm and returns it to the
- * caller, and schedules initialization of the interface.
+ * ucsi_get_drvdata - Return private driver data pointer
+ * @ucsi: UCSI interface
+ */
+void *ucsi_get_drvdata(struct ucsi *ucsi)
+{
+ return ucsi->driver_data;
+}
+EXPORT_SYMBOL_GPL(ucsi_get_drvdata);
+
+/**
+ * ucsi_get_drvdata - Assign private driver data pointer
+ * @ucsi: UCSI interface
+ * @data: Private data pointer
*/
-struct ucsi *ucsi_register_ppm(struct device *dev, struct ucsi_ppm *ppm)
+void ucsi_set_drvdata(struct ucsi *ucsi, void *data)
+{
+ ucsi->driver_data = data;
+}
+EXPORT_SYMBOL_GPL(ucsi_set_drvdata);
+
+/**
+ * ucsi_create - Allocate UCSI instance
+ * @dev: Device interface to the PPM (Platform Policy Manager)
+ * @ops: I/O routines
+ */
+struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops)
{
struct ucsi *ucsi;
+ if (!ops || !ops->read || !ops->sync_write || !ops->async_write)
+ return ERR_PTR(-EINVAL);
+
ucsi = kzalloc(sizeof(*ucsi), GFP_KERNEL);
if (!ucsi)
return ERR_PTR(-ENOMEM);
- INIT_WORK(&ucsi->work, ucsi_init);
- init_completion(&ucsi->complete);
+ INIT_WORK(&ucsi->work, ucsi_init_work);
mutex_init(&ucsi->ppm_lock);
-
ucsi->dev = dev;
- ucsi->ppm = ppm;
+ ucsi->ops = ops;
+
+ return ucsi;
+}
+EXPORT_SYMBOL_GPL(ucsi_create);
+
+/**
+ * ucsi_destroy - Free UCSI instance
+ * @ucsi: UCSI instance to be freed
+ */
+void ucsi_destroy(struct ucsi *ucsi)
+{
+ kfree(ucsi);
+}
+EXPORT_SYMBOL_GPL(ucsi_destroy);
+
+/**
+ * ucsi_register - Register UCSI interface
+ * @ucsi: UCSI instance
+ */
+int ucsi_register(struct ucsi *ucsi)
+{
+ int ret;
+
+ ret = ucsi->ops->read(ucsi, UCSI_VERSION, &ucsi->version,
+ sizeof(ucsi->version));
+ if (ret)
+ return ret;
+
+ if (!ucsi->version)
+ return -ENODEV;
- /*
- * Communication with the PPM takes a lot of time. It is not reasonable
- * to initialize the driver here. Using a work for now.
- */
queue_work(system_long_wq, &ucsi->work);
- return ucsi;
+ return 0;
}
-EXPORT_SYMBOL_GPL(ucsi_register_ppm);
+EXPORT_SYMBOL_GPL(ucsi_register);
/**
- * ucsi_unregister_ppm - Unregister UCSI PPM Interface
- * @ucsi: struct ucsi associated with the PPM
+ * ucsi_unregister - Unregister UCSI interface
+ * @ucsi: UCSI interface to be unregistered
*
- * Unregister UCSI PPM that was created with ucsi_register().
+ * Unregister UCSI interface that was created with ucsi_register().
*/
-void ucsi_unregister_ppm(struct ucsi *ucsi)
+void ucsi_unregister(struct ucsi *ucsi)
{
- struct ucsi_control ctrl;
+ u64 cmd = UCSI_SET_NOTIFICATION_ENABLE;
int i;
/* Make sure that we are not in the middle of driver initialization */
cancel_work_sync(&ucsi->work);
- /* Disable everything except command complete notification */
- UCSI_CMD_SET_NTFY_ENABLE(ctrl, UCSI_ENABLE_NTFY_CMD_COMPLETE)
- ucsi_send_command(ucsi, &ctrl, NULL, 0);
+ /* Disable notifications */
+ ucsi->ops->async_write(ucsi, UCSI_CONTROL, &cmd, sizeof(cmd));
for (i = 0; i < ucsi->cap.num_connectors; i++) {
cancel_work_sync(&ucsi->connector[i].work);
@@ -1032,12 +1062,9 @@ void ucsi_unregister_ppm(struct ucsi *ucsi)
typec_unregister_port(ucsi->connector[i].port);
}
- ucsi_reset_ppm(ucsi);
-
kfree(ucsi->connector);
- kfree(ucsi);
}
-EXPORT_SYMBOL_GPL(ucsi_unregister_ppm);
+EXPORT_SYMBOL_GPL(ucsi_unregister);
MODULE_AUTHOR("Heikki Krogerus <heikki.krogerus@linux.intel.com>");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
index de87d0b8319d..8569bbd3762f 100644
--- a/drivers/usb/typec/ucsi/ucsi.h
+++ b/drivers/usb/typec/ucsi/ucsi.h
@@ -10,177 +10,55 @@
/* -------------------------------------------------------------------------- */
-/* Command Status and Connector Change Indication (CCI) data structure */
-struct ucsi_cci {
- u8:1; /* reserved */
- u8 connector_change:7;
- u8 data_length;
- u16:9; /* reserved */
- u16 not_supported:1;
- u16 cancel_complete:1;
- u16 reset_complete:1;
- u16 busy:1;
- u16 ack_complete:1;
- u16 error:1;
- u16 cmd_complete:1;
-} __packed;
-
-/* Default fields in CONTROL data structure */
-struct ucsi_command {
- u8 cmd;
- u8 length;
- u64 data:48;
-} __packed;
-
-/* ACK Command structure */
-struct ucsi_ack_cmd {
- u8 cmd;
- u8 length;
- u8 cci_ack:1;
- u8 cmd_ack:1;
- u8:6; /* reserved */
-} __packed;
-
-/* Connector Reset Command structure */
-struct ucsi_con_rst {
- u8 cmd;
- u8 length;
- u8 con_num:7;
- u8 hard_reset:1;
-} __packed;
-
-/* Set USB Operation Mode Command structure */
-struct ucsi_uor_cmd {
- u8 cmd;
- u8 length;
- u16 con_num:7;
- u16 role:3;
-#define UCSI_UOR_ROLE_DFP BIT(0)
-#define UCSI_UOR_ROLE_UFP BIT(1)
-#define UCSI_UOR_ROLE_DRP BIT(2)
- u16:6; /* reserved */
-} __packed;
-
-/* Get Alternate Modes Command structure */
-struct ucsi_altmode_cmd {
- u8 cmd;
- u8 length;
- u8 recipient;
-#define UCSI_RECIPIENT_CON 0
-#define UCSI_RECIPIENT_SOP 1
-#define UCSI_RECIPIENT_SOP_P 2
-#define UCSI_RECIPIENT_SOP_PP 3
- u8 con_num;
- u8 offset;
- u8 num_altmodes;
-} __packed;
+struct ucsi;
-struct ucsi_control {
- union {
- u64 raw_cmd;
- struct ucsi_command cmd;
- struct ucsi_uor_cmd uor;
- struct ucsi_ack_cmd ack;
- struct ucsi_con_rst con_rst;
- struct ucsi_altmode_cmd alt;
- };
+/* UCSI offsets (Bytes) */
+#define UCSI_VERSION 0
+#define UCSI_CCI 4
+#define UCSI_CONTROL 8
+#define UCSI_MESSAGE_IN 16
+#define UCSI_MESSAGE_OUT 32
+
+/* Command Status and Connector Change Indication (CCI) bits */
+#define UCSI_CCI_CONNECTOR(_c_) (((_c_) & GENMASK(7, 0)) >> 1)
+#define UCSI_CCI_LENGTH(_c_) (((_c_) & GENMASK(15, 8)) >> 8)
+#define UCSI_CCI_NOT_SUPPORTED BIT(25)
+#define UCSI_CCI_CANCEL_COMPLETE BIT(26)
+#define UCSI_CCI_RESET_COMPLETE BIT(27)
+#define UCSI_CCI_BUSY BIT(28)
+#define UCSI_CCI_ACK_COMPLETE BIT(29)
+#define UCSI_CCI_ERROR BIT(30)
+#define UCSI_CCI_COMMAND_COMPLETE BIT(31)
+
+/**
+ * struct ucsi_operations - UCSI I/O operations
+ * @read: Read operation
+ * @sync_write: Blocking write operation
+ * @async_write: Non-blocking write operation
+ *
+ * Read and write routines for UCSI interface. @sync_write must wait for the
+ * Command Completion Event from the PPM before returning, and @async_write must
+ * return immediately after sending the data to the PPM.
+ */
+struct ucsi_operations {
+ int (*read)(struct ucsi *ucsi, unsigned int offset,
+ void *val, size_t val_len);
+ int (*sync_write)(struct ucsi *ucsi, unsigned int offset,
+ const void *val, size_t val_len);
+ int (*async_write)(struct ucsi *ucsi, unsigned int offset,
+ const void *val, size_t val_len);
};
-#define __UCSI_CMD(_ctrl_, _cmd_) \
-{ \
- (_ctrl_).raw_cmd = 0; \
- (_ctrl_).cmd.cmd = _cmd_; \
-}
-
-/* Helper for preparing ucsi_control for CONNECTOR_RESET command. */
-#define UCSI_CMD_CONNECTOR_RESET(_ctrl_, _con_, _hard_) \
-{ \
- __UCSI_CMD(_ctrl_, UCSI_CONNECTOR_RESET) \
- (_ctrl_).con_rst.con_num = (_con_)->num; \
- (_ctrl_).con_rst.hard_reset = _hard_; \
-}
-
-/* Helper for preparing ucsi_control for ACK_CC_CI command. */
-#define UCSI_CMD_ACK(_ctrl_, _ack_) \
-{ \
- __UCSI_CMD(_ctrl_, UCSI_ACK_CC_CI) \
- (_ctrl_).ack.cci_ack = ((_ack_) == UCSI_ACK_EVENT); \
- (_ctrl_).ack.cmd_ack = ((_ack_) == UCSI_ACK_CMD); \
-}
-
-/* Helper for preparing ucsi_control for SET_NOTIFY_ENABLE command. */
-#define UCSI_CMD_SET_NTFY_ENABLE(_ctrl_, _ntfys_) \
-{ \
- __UCSI_CMD(_ctrl_, UCSI_SET_NOTIFICATION_ENABLE) \
- (_ctrl_).cmd.data = _ntfys_; \
-}
-
-/* Helper for preparing ucsi_control for GET_CAPABILITY command. */
-#define UCSI_CMD_GET_CAPABILITY(_ctrl_) \
-{ \
- __UCSI_CMD(_ctrl_, UCSI_GET_CAPABILITY) \
-}
-
-/* Helper for preparing ucsi_control for GET_CONNECTOR_CAPABILITY command. */
-#define UCSI_CMD_GET_CONNECTOR_CAPABILITY(_ctrl_, _con_) \
-{ \
- __UCSI_CMD(_ctrl_, UCSI_GET_CONNECTOR_CAPABILITY) \
- (_ctrl_).cmd.data = _con_; \
-}
+struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops);
+void ucsi_destroy(struct ucsi *ucsi);
+int ucsi_register(struct ucsi *ucsi);
+void ucsi_unregister(struct ucsi *ucsi);
+void *ucsi_get_drvdata(struct ucsi *ucsi);
+void ucsi_set_drvdata(struct ucsi *ucsi, void *data);
-/* Helper for preparing ucsi_control for GET_ALTERNATE_MODES command. */
-#define UCSI_CMD_GET_ALTERNATE_MODES(_ctrl_, _r_, _con_num_, _o_, _num_)\
-{ \
- __UCSI_CMD((_ctrl_), UCSI_GET_ALTERNATE_MODES) \
- _ctrl_.alt.recipient = (_r_); \
- _ctrl_.alt.con_num = (_con_num_); \
- _ctrl_.alt.offset = (_o_); \
- _ctrl_.alt.num_altmodes = (_num_) - 1; \
-}
+void ucsi_connector_change(struct ucsi *ucsi, u8 num);
-/* Helper for preparing ucsi_control for GET_CAM_SUPPORTED command. */
-#define UCSI_CMD_GET_CAM_SUPPORTED(_ctrl_, _con_) \
-{ \
- __UCSI_CMD((_ctrl_), UCSI_GET_CAM_SUPPORTED) \
- _ctrl_.cmd.data = (_con_); \
-}
-
-/* Helper for preparing ucsi_control for GET_CAM_SUPPORTED command. */
-#define UCSI_CMD_GET_CURRENT_CAM(_ctrl_, _con_) \
-{ \
- __UCSI_CMD((_ctrl_), UCSI_GET_CURRENT_CAM) \
- _ctrl_.cmd.data = (_con_); \
-}
-
-/* Helper for preparing ucsi_control for GET_CONNECTOR_STATUS command. */
-#define UCSI_CMD_GET_CONNECTOR_STATUS(_ctrl_, _con_) \
-{ \
- __UCSI_CMD(_ctrl_, UCSI_GET_CONNECTOR_STATUS) \
- (_ctrl_).cmd.data = _con_; \
-}
-
-#define __UCSI_ROLE(_ctrl_, _cmd_, _con_num_) \
-{ \
- __UCSI_CMD(_ctrl_, _cmd_) \
- (_ctrl_).uor.con_num = _con_num_; \
- (_ctrl_).uor.role = UCSI_UOR_ROLE_DRP; \
-}
-
-/* Helper for preparing ucsi_control for SET_UOR command. */
-#define UCSI_CMD_SET_UOR(_ctrl_, _con_, _role_) \
-{ \
- __UCSI_ROLE(_ctrl_, UCSI_SET_UOR, (_con_)->num) \
- (_ctrl_).uor.role |= (_role_) == TYPEC_HOST ? UCSI_UOR_ROLE_DFP : \
- UCSI_UOR_ROLE_UFP; \
-}
-
-/* Helper for preparing ucsi_control for SET_PDR command. */
-#define UCSI_CMD_SET_PDR(_ctrl_, _con_, _role_) \
-{ \
- __UCSI_ROLE(_ctrl_, UCSI_SET_PDR, (_con_)->num) \
- (_ctrl_).uor.role |= (_role_) == TYPEC_SOURCE ? UCSI_UOR_ROLE_DFP : \
- UCSI_UOR_ROLE_UFP; \
-}
+/* -------------------------------------------------------------------------- */
/* Commands */
#define UCSI_PPM_RESET 0x01
@@ -203,24 +81,49 @@ struct ucsi_control {
#define UCSI_GET_CONNECTOR_STATUS 0x12
#define UCSI_GET_ERROR_STATUS 0x13
-/* ACK_CC_CI commands */
-#define UCSI_ACK_EVENT 1
-#define UCSI_ACK_CMD 2
-
-/* Bits for SET_NOTIFICATION_ENABLE command */
-#define UCSI_ENABLE_NTFY_CMD_COMPLETE BIT(0)
-#define UCSI_ENABLE_NTFY_EXT_PWR_SRC_CHANGE BIT(1)
-#define UCSI_ENABLE_NTFY_PWR_OPMODE_CHANGE BIT(2)
-#define UCSI_ENABLE_NTFY_CAP_CHANGE BIT(5)
-#define UCSI_ENABLE_NTFY_PWR_LEVEL_CHANGE BIT(6)
-#define UCSI_ENABLE_NTFY_PD_RESET_COMPLETE BIT(7)
-#define UCSI_ENABLE_NTFY_CAM_CHANGE BIT(8)
-#define UCSI_ENABLE_NTFY_BAT_STATUS_CHANGE BIT(9)
-#define UCSI_ENABLE_NTFY_PARTNER_CHANGE BIT(11)
-#define UCSI_ENABLE_NTFY_PWR_DIR_CHANGE BIT(12)
-#define UCSI_ENABLE_NTFY_CONNECTOR_CHANGE BIT(14)
-#define UCSI_ENABLE_NTFY_ERROR BIT(15)
-#define UCSI_ENABLE_NTFY_ALL 0xdbe7
+#define UCSI_CONNECTOR_NUMBER(_num_) ((u64)(_num_) << 16)
+
+/* CONNECTOR_RESET command bits */
+#define UCSI_CONNECTOR_RESET_HARD BIT(23) /* Deprecated in v1.1 */
+
+/* ACK_CC_CI bits */
+#define UCSI_ACK_CONNECTOR_CHANGE BIT(16)
+#define UCSI_ACK_COMMAND_COMPLETE BIT(17)
+
+/* SET_NOTIFICATION_ENABLE command bits */
+#define UCSI_ENABLE_NTFY_CMD_COMPLETE BIT(16)
+#define UCSI_ENABLE_NTFY_EXT_PWR_SRC_CHANGE BIT(17)
+#define UCSI_ENABLE_NTFY_PWR_OPMODE_CHANGE BIT(18)
+#define UCSI_ENABLE_NTFY_CAP_CHANGE BIT(19)
+#define UCSI_ENABLE_NTFY_PWR_LEVEL_CHANGE BIT(20)
+#define UCSI_ENABLE_NTFY_PD_RESET_COMPLETE BIT(21)
+#define UCSI_ENABLE_NTFY_CAM_CHANGE BIT(22)
+#define UCSI_ENABLE_NTFY_BAT_STATUS_CHANGE BIT(23)
+#define UCSI_ENABLE_NTFY_PARTNER_CHANGE BIT(24)
+#define UCSI_ENABLE_NTFY_PWR_DIR_CHANGE BIT(25)
+#define UCSI_ENABLE_NTFY_CONNECTOR_CHANGE BIT(26)
+#define UCSI_ENABLE_NTFY_ERROR BIT(27)
+#define UCSI_ENABLE_NTFY_ALL 0xdbe70000
+
+/* SET_UOR command bits */
+#define UCSI_SET_UOR_ROLE(_r_) (((_r_) == TYPEC_HOST ? 1 : 2) << 23)
+#define UCSI_SET_UOR_ACCEPT_ROLE_SWAPS BIT(25)
+
+/* SET_PDF command bits */
+#define UCSI_SET_PDR_ROLE(_r_) (((_r_) == TYPEC_SOURCE ? 1 : 2) << 23)
+#define UCSI_SET_PDR_ACCEPT_ROLE_SWAPS BIT(25)
+
+/* GET_ALTERNATE_MODES command bits */
+#define UCSI_GET_ALTMODE_RECIPIENT(_r_) ((u64)(_r_) << 16)
+#define UCSI_RECIPIENT_CON 0
+#define UCSI_RECIPIENT_SOP 1
+#define UCSI_RECIPIENT_SOP_P 2
+#define UCSI_RECIPIENT_SOP_PP 3
+#define UCSI_GET_ALTMODE_CONNECTOR_NUMBER(_r_) ((u64)(_r_) << 24)
+#define UCSI_GET_ALTMODE_OFFSET(_r_) ((u64)(_r_) << 32)
+#define UCSI_GET_ALTMODE_NUM_ALTMODES(_r_) ((u64)(_r_) << 40)
+
+/* -------------------------------------------------------------------------- */
/* Error information returned by PPM in response to GET_ERROR_STATUS command. */
#define UCSI_ERROR_UNREGONIZED_CMD BIT(0)
@@ -230,6 +133,12 @@ struct ucsi_control {
#define UCSI_ERROR_CC_COMMUNICATION_ERR BIT(4)
#define UCSI_ERROR_DEAD_BATTERY BIT(5)
#define UCSI_ERROR_CONTRACT_NEGOTIATION_FAIL BIT(6)
+#define UCSI_ERROR_OVERCURRENT BIT(7)
+#define UCSI_ERROR_UNDEFINED BIT(8)
+#define UCSI_ERROR_PARTNER_REJECTED_SWAP BIT(9)
+#define UCSI_ERROR_HARD_RESET BIT(10)
+#define UCSI_ERROR_PPM_POLICY_CONFLICT BIT(11)
+#define UCSI_ERROR_SWAP_REJECTED BIT(12)
/* Data structure filled by PPM in response to GET_CAPABILITY command. */
struct ucsi_capability {
@@ -241,8 +150,8 @@ struct ucsi_capability {
#define UCSI_CAP_ATTR_POWER_AC_SUPPLY BIT(8)
#define UCSI_CAP_ATTR_POWER_OTHER BIT(10)
#define UCSI_CAP_ATTR_POWER_VBUS BIT(14)
- u32 num_connectors:8;
- u32 features:24;
+ u8 num_connectors;
+ u8 features;
#define UCSI_CAP_SET_UOM BIT(0)
#define UCSI_CAP_SET_PDM BIT(1)
#define UCSI_CAP_ALT_MODE_DETAILS BIT(2)
@@ -251,8 +160,9 @@ struct ucsi_capability {
#define UCSI_CAP_CABLE_DETAILS BIT(5)
#define UCSI_CAP_EXT_SUPPLY_NOTIFICATIONS BIT(6)
#define UCSI_CAP_PD_RESET BIT(7)
+ u16 reserved_1;
u8 num_alt_modes;
- u8 reserved;
+ u8 reserved_2;
u16 bc_version;
u16 pd_version;
u16 typec_version;
@@ -269,9 +179,9 @@ struct ucsi_connector_capability {
#define UCSI_CONCAP_OPMODE_USB2 BIT(5)
#define UCSI_CONCAP_OPMODE_USB3 BIT(6)
#define UCSI_CONCAP_OPMODE_ALT_MODE BIT(7)
- u8 provider:1;
- u8 consumer:1;
- u8:6; /* reserved */
+ u8 flags;
+#define UCSI_CONCAP_FLAG_PROVIDER BIT(0)
+#define UCSI_CONCAP_FLAG_CONSUMER BIT(1)
} __packed;
struct ucsi_altmode {
@@ -283,18 +193,17 @@ struct ucsi_altmode {
struct ucsi_cable_property {
u16 speed_supported;
u8 current_capability;
- u8 vbus_in_cable:1;
- u8 active_cable:1;
- u8 directionality:1;
- u8 plug_type:2;
-#define UCSI_CABLE_PROPERTY_PLUG_TYPE_A 0
-#define UCSI_CABLE_PROPERTY_PLUG_TYPE_B 1
-#define UCSI_CABLE_PROPERTY_PLUG_TYPE_C 2
-#define UCSI_CABLE_PROPERTY_PLUG_OTHER 3
- u8 mode_support:1;
- u8:2; /* reserved */
- u8 latency:4;
- u8:4; /* reserved */
+ u8 flags;
+#define UCSI_CABLE_PROP_FLAG_VBUS_IN_CABLE BIT(0)
+#define UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE BIT(1)
+#define UCSI_CABLE_PROP_FLAG_DIRECTIONALITY BIT(2)
+#define UCSI_CABLE_PROP_FLAG_PLUG_TYPE(_f_) ((_f_) & GENMASK(3, 0))
+#define UCSI_CABLE_PROPERTY_PLUG_TYPE_A 0
+#define UCSI_CABLE_PROPERTY_PLUG_TYPE_B 1
+#define UCSI_CABLE_PROPERTY_PLUG_TYPE_C 2
+#define UCSI_CABLE_PROPERTY_PLUG_OTHER 3
+#define UCSI_CABLE_PROP_MODE_SUPPORT BIT(5)
+ u8 latency;
} __packed;
/* Data structure filled by PPM in response to GET_CONNECTOR_STATUS command. */
@@ -311,83 +220,47 @@ struct ucsi_connector_status {
#define UCSI_CONSTAT_POWER_DIR_CHANGE BIT(12)
#define UCSI_CONSTAT_CONNECT_CHANGE BIT(14)
#define UCSI_CONSTAT_ERROR BIT(15)
- u16 pwr_op_mode:3;
-#define UCSI_CONSTAT_PWR_OPMODE_NONE 0
-#define UCSI_CONSTAT_PWR_OPMODE_DEFAULT 1
-#define UCSI_CONSTAT_PWR_OPMODE_BC 2
-#define UCSI_CONSTAT_PWR_OPMODE_PD 3
-#define UCSI_CONSTAT_PWR_OPMODE_TYPEC1_5 4
-#define UCSI_CONSTAT_PWR_OPMODE_TYPEC3_0 5
- u16 connected:1;
- u16 pwr_dir:1;
- u16 partner_flags:8;
-#define UCSI_CONSTAT_PARTNER_FLAG_USB BIT(0)
-#define UCSI_CONSTAT_PARTNER_FLAG_ALT_MODE BIT(1)
- u16 partner_type:3;
-#define UCSI_CONSTAT_PARTNER_TYPE_DFP 1
-#define UCSI_CONSTAT_PARTNER_TYPE_UFP 2
-#define UCSI_CONSTAT_PARTNER_TYPE_CABLE 3 /* Powered Cable */
-#define UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP 4 /* Powered Cable */
-#define UCSI_CONSTAT_PARTNER_TYPE_DEBUG 5
-#define UCSI_CONSTAT_PARTNER_TYPE_AUDIO 6
+ u16 flags;
+#define UCSI_CONSTAT_PWR_OPMODE(_f_) ((_f_) & GENMASK(2, 0))
+#define UCSI_CONSTAT_PWR_OPMODE_NONE 0
+#define UCSI_CONSTAT_PWR_OPMODE_DEFAULT 1
+#define UCSI_CONSTAT_PWR_OPMODE_BC 2
+#define UCSI_CONSTAT_PWR_OPMODE_PD 3
+#define UCSI_CONSTAT_PWR_OPMODE_TYPEC1_5 4
+#define UCSI_CONSTAT_PWR_OPMODE_TYPEC3_0 5
+#define UCSI_CONSTAT_CONNECTED BIT(3)
+#define UCSI_CONSTAT_PWR_DIR BIT(4)
+#define UCSI_CONSTAT_PARTNER_FLAGS(_f_) (((_f_) & GENMASK(12, 5)) >> 5)
+#define UCSI_CONSTAT_PARTNER_FLAG_USB 1
+#define UCSI_CONSTAT_PARTNER_FLAG_ALT_MODE 2
+#define UCSI_CONSTAT_PARTNER_TYPE(_f_) (((_f_) & GENMASK(15, 13)) >> 13)
+#define UCSI_CONSTAT_PARTNER_TYPE_DFP 1
+#define UCSI_CONSTAT_PARTNER_TYPE_UFP 2
+#define UCSI_CONSTAT_PARTNER_TYPE_CABLE 3 /* Powered Cable */
+#define UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP 4 /* Powered Cable */
+#define UCSI_CONSTAT_PARTNER_TYPE_DEBUG 5
+#define UCSI_CONSTAT_PARTNER_TYPE_AUDIO 6
u32 request_data_obj;
- u8 bc_status:2;
-#define UCSI_CONSTAT_BC_NOT_CHARGING 0
-#define UCSI_CONSTAT_BC_NOMINAL_CHARGING 1
-#define UCSI_CONSTAT_BC_SLOW_CHARGING 2
-#define UCSI_CONSTAT_BC_TRICKLE_CHARGING 3
- u8 provider_cap_limit_reason:4;
-#define UCSI_CONSTAT_CAP_PWR_LOWERED 0
-#define UCSI_CONSTAT_CAP_PWR_BUDGET_LIMIT 1
- u8:2; /* reserved */
+ u8 pwr_status;
+#define UCSI_CONSTAT_BC_STATUS(_p_) ((_p_) & GENMASK(2, 0))
+#define UCSI_CONSTAT_BC_NOT_CHARGING 0
+#define UCSI_CONSTAT_BC_NOMINAL_CHARGING 1
+#define UCSI_CONSTAT_BC_SLOW_CHARGING 2
+#define UCSI_CONSTAT_BC_TRICKLE_CHARGING 3
+#define UCSI_CONSTAT_PROVIDER_CAP_LIMIT(_p_) (((_p_) & GENMASK(6, 3)) >> 3)
+#define UCSI_CONSTAT_CAP_PWR_LOWERED 0
+#define UCSI_CONSTAT_CAP_PWR_BUDGET_LIMIT 1
} __packed;
/* -------------------------------------------------------------------------- */
-struct ucsi;
-
-struct ucsi_data {
- u16 version;
- u16 reserved;
- union {
- u32 raw_cci;
- struct ucsi_cci cci;
- };
- struct ucsi_control ctrl;
- u32 message_in[4];
- u32 message_out[4];
-} __packed;
-
-/*
- * struct ucsi_ppm - Interface to UCSI Platform Policy Manager
- * @data: memory location to the UCSI data structures
- * @cmd: UCSI command execution routine
- * @sync: Refresh UCSI mailbox (the data structures)
- */
-struct ucsi_ppm {
- struct ucsi_data *data;
- int (*cmd)(struct ucsi_ppm *, struct ucsi_control *);
- int (*sync)(struct ucsi_ppm *);
-};
-
-struct ucsi *ucsi_register_ppm(struct device *dev, struct ucsi_ppm *ppm);
-void ucsi_unregister_ppm(struct ucsi *ucsi);
-void ucsi_notify(struct ucsi *ucsi);
-
-/* -------------------------------------------------------------------------- */
-
-enum ucsi_status {
- UCSI_IDLE = 0,
- UCSI_BUSY,
- UCSI_ERROR,
-};
-
struct ucsi {
+ u16 version;
struct device *dev;
- struct ucsi_ppm *ppm;
+ struct driver_data *driver_data;
+
+ const struct ucsi_operations *ops;
- enum ucsi_status status;
- struct completion complete;
struct ucsi_capability cap;
struct ucsi_connector *connector;
@@ -426,7 +299,7 @@ struct ucsi_connector {
struct ucsi_connector_capability cap;
};
-int ucsi_send_command(struct ucsi *ucsi, struct ucsi_control *ctrl,
+int ucsi_send_command(struct ucsi *ucsi, u64 command,
void *retval, size_t size);
void ucsi_altmode_update_active(struct ucsi_connector *con);
diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
index a18112a83fae..3f1786170098 100644
--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
+++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
@@ -19,7 +19,9 @@
struct ucsi_acpi {
struct device *dev;
struct ucsi *ucsi;
- struct ucsi_ppm ppm;
+ void __iomem *base;
+ struct completion complete;
+ unsigned long flags;
guid_t guid;
};
@@ -39,27 +41,73 @@ static int ucsi_acpi_dsm(struct ucsi_acpi *ua, int func)
return 0;
}
-static int ucsi_acpi_cmd(struct ucsi_ppm *ppm, struct ucsi_control *ctrl)
+static int ucsi_acpi_read(struct ucsi *ucsi, unsigned int offset,
+ void *val, size_t val_len)
{
- struct ucsi_acpi *ua = container_of(ppm, struct ucsi_acpi, ppm);
+ struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi);
+ int ret;
+
+ ret = ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_READ);
+ if (ret)
+ return ret;
+
+ memcpy(val, (const void __force *)(ua->base + offset), val_len);
+
+ return 0;
+}
+
+static int ucsi_acpi_async_write(struct ucsi *ucsi, unsigned int offset,
+ const void *val, size_t val_len)
+{
+ struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi);
- ppm->data->ctrl.raw_cmd = ctrl->raw_cmd;
+ memcpy((void __force *)(ua->base + offset), val, val_len);
return ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_WRITE);
}
-static int ucsi_acpi_sync(struct ucsi_ppm *ppm)
+static int ucsi_acpi_sync_write(struct ucsi *ucsi, unsigned int offset,
+ const void *val, size_t val_len)
{
- struct ucsi_acpi *ua = container_of(ppm, struct ucsi_acpi, ppm);
+ struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi);
+ int ret;
+
+ set_bit(COMMAND_PENDING, &ua->flags);
+
+ ret = ucsi_acpi_async_write(ucsi, offset, val, val_len);
+ if (ret)
+ goto out_clear_bit;
- return ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_READ);
+ if (!wait_for_completion_timeout(&ua->complete, msecs_to_jiffies(5000)))
+ ret = -ETIMEDOUT;
+
+out_clear_bit:
+ clear_bit(COMMAND_PENDING, &ua->flags);
+
+ return ret;
}
+static const struct ucsi_operations ucsi_acpi_ops = {
+ .read = ucsi_acpi_read,
+ .sync_write = ucsi_acpi_sync_write,
+ .async_write = ucsi_acpi_async_write
+};
+
static void ucsi_acpi_notify(acpi_handle handle, u32 event, void *data)
{
struct ucsi_acpi *ua = data;
+ u32 cci;
+ int ret;
+
+ ret = ucsi_acpi_read(ua->ucsi, UCSI_CCI, &cci, sizeof(cci));
+ if (ret)
+ return;
- ucsi_notify(ua->ucsi);
+ if (test_bit(COMMAND_PENDING, &ua->flags) &&
+ cci & (UCSI_CCI_ACK_COMPLETE | UCSI_CCI_COMMAND_COMPLETE))
+ complete(&ua->complete);
+ else if (UCSI_CCI_CONNECTOR(cci))
+ ucsi_connector_change(ua->ucsi, UCSI_CCI_CONNECTOR(cci));
}
static int ucsi_acpi_probe(struct platform_device *pdev)
@@ -90,35 +138,39 @@ static int ucsi_acpi_probe(struct platform_device *pdev)
* it can not be requested here, and we can not use
* devm_ioremap_resource().
*/
- ua->ppm.data = devm_ioremap(&pdev->dev, res->start, resource_size(res));
- if (!ua->ppm.data)
+ ua->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (!ua->base)
return -ENOMEM;
- if (!ua->ppm.data->version)
- return -ENODEV;
-
ret = guid_parse(UCSI_DSM_UUID, &ua->guid);
if (ret)
return ret;
- ua->ppm.cmd = ucsi_acpi_cmd;
- ua->ppm.sync = ucsi_acpi_sync;
+ init_completion(&ua->complete);
ua->dev = &pdev->dev;
+ ua->ucsi = ucsi_create(&pdev->dev, &ucsi_acpi_ops);
+ if (IS_ERR(ua->ucsi))
+ return PTR_ERR(ua->ucsi);
+
+ ucsi_set_drvdata(ua->ucsi, ua);
+
status = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev),
ACPI_DEVICE_NOTIFY,
ucsi_acpi_notify, ua);
if (ACPI_FAILURE(status)) {
dev_err(&pdev->dev, "failed to install notify handler\n");
+ ucsi_destroy(ua->ucsi);
return -ENODEV;
}
- ua->ucsi = ucsi_register_ppm(&pdev->dev, &ua->ppm);
- if (IS_ERR(ua->ucsi)) {
+ ret = ucsi_register(ua->ucsi);
+ if (ret) {
acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev),
ACPI_DEVICE_NOTIFY,
ucsi_acpi_notify);
- return PTR_ERR(ua->ucsi);
+ ucsi_destroy(ua->ucsi);
+ return ret;
}
platform_set_drvdata(pdev, ua);
@@ -130,7 +182,8 @@ static int ucsi_acpi_remove(struct platform_device *pdev)
{
struct ucsi_acpi *ua = platform_get_drvdata(pdev);
- ucsi_unregister_ppm(ua->ucsi);
+ ucsi_unregister(ua->ucsi);
+ ucsi_destroy(ua->ucsi);
acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev), ACPI_DEVICE_NOTIFY,
ucsi_acpi_notify);
diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c
index d772fce51905..3370b3fc37b1 100644
--- a/drivers/usb/typec/ucsi/ucsi_ccg.c
+++ b/drivers/usb/typec/ucsi/ucsi_ccg.c
@@ -176,8 +176,8 @@ struct ccg_resp {
struct ucsi_ccg {
struct device *dev;
struct ucsi *ucsi;
- struct ucsi_ppm ppm;
struct i2c_client *client;
+
struct ccg_dev_info info;
/* version info for boot, primary and secondary */
struct version_info version[FW2 + 1];
@@ -196,6 +196,8 @@ struct ucsi_ccg {
/* fw build with vendor information */
u16 fw_build;
struct work_struct pm_work;
+
+ struct completion complete;
};
static int ccg_read(struct ucsi_ccg *uc, u16 rab, u8 *data, u32 len)
@@ -243,7 +245,7 @@ static int ccg_read(struct ucsi_ccg *uc, u16 rab, u8 *data, u32 len)
return 0;
}
-static int ccg_write(struct ucsi_ccg *uc, u16 rab, u8 *data, u32 len)
+static int ccg_write(struct ucsi_ccg *uc, u16 rab, const u8 *data, u32 len)
{
struct i2c_client *client = uc->client;
unsigned char *buf;
@@ -317,88 +319,85 @@ static int ucsi_ccg_init(struct ucsi_ccg *uc)
return -ETIMEDOUT;
}
-static int ucsi_ccg_send_data(struct ucsi_ccg *uc)
+static int ucsi_ccg_read(struct ucsi *ucsi, unsigned int offset,
+ void *val, size_t val_len)
{
- u8 *ppm = (u8 *)uc->ppm.data;
- int status;
- u16 rab;
+ u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(offset);
- rab = CCGX_RAB_UCSI_DATA_BLOCK(offsetof(struct ucsi_data, message_out));
- status = ccg_write(uc, rab, ppm +
- offsetof(struct ucsi_data, message_out),
- sizeof(uc->ppm.data->message_out));
- if (status < 0)
- return status;
-
- rab = CCGX_RAB_UCSI_DATA_BLOCK(offsetof(struct ucsi_data, ctrl));
- return ccg_write(uc, rab, ppm + offsetof(struct ucsi_data, ctrl),
- sizeof(uc->ppm.data->ctrl));
+ return ccg_read(ucsi_get_drvdata(ucsi), reg, val, val_len);
}
-static int ucsi_ccg_recv_data(struct ucsi_ccg *uc)
+static int ucsi_ccg_async_write(struct ucsi *ucsi, unsigned int offset,
+ const void *val, size_t val_len)
{
- u8 *ppm = (u8 *)uc->ppm.data;
- int status;
- u16 rab;
+ u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(offset);
- rab = CCGX_RAB_UCSI_DATA_BLOCK(offsetof(struct ucsi_data, cci));
- status = ccg_read(uc, rab, ppm + offsetof(struct ucsi_data, cci),
- sizeof(uc->ppm.data->cci));
- if (status < 0)
- return status;
-
- rab = CCGX_RAB_UCSI_DATA_BLOCK(offsetof(struct ucsi_data, message_in));
- return ccg_read(uc, rab, ppm + offsetof(struct ucsi_data, message_in),
- sizeof(uc->ppm.data->message_in));
+ return ccg_write(ucsi_get_drvdata(ucsi), reg, val, val_len);
}
-static int ucsi_ccg_ack_interrupt(struct ucsi_ccg *uc)
+static int ucsi_ccg_sync_write(struct ucsi *ucsi, unsigned int offset,
+ const void *val, size_t val_len)
{
- int status;
- unsigned char data;
+ struct ucsi_ccg *uc = ucsi_get_drvdata(ucsi);
+ int ret;
- status = ccg_read(uc, CCGX_RAB_INTR_REG, &data, sizeof(data));
- if (status < 0)
- return status;
+ mutex_lock(&uc->lock);
+ pm_runtime_get_sync(uc->dev);
+ set_bit(DEV_CMD_PENDING, &uc->flags);
- return ccg_write(uc, CCGX_RAB_INTR_REG, &data, sizeof(data));
-}
+ ret = ucsi_ccg_async_write(ucsi, offset, val, val_len);
+ if (ret)
+ goto err_clear_bit;
-static int ucsi_ccg_sync(struct ucsi_ppm *ppm)
-{
- struct ucsi_ccg *uc = container_of(ppm, struct ucsi_ccg, ppm);
- int status;
+ if (!wait_for_completion_timeout(&uc->complete, msecs_to_jiffies(5000)))
+ ret = -ETIMEDOUT;
- status = ucsi_ccg_recv_data(uc);
- if (status < 0)
- return status;
+err_clear_bit:
+ clear_bit(DEV_CMD_PENDING, &uc->flags);
+ pm_runtime_put_sync(uc->dev);
+ mutex_unlock(&uc->lock);
- /* ack interrupt to allow next command to run */
- return ucsi_ccg_ack_interrupt(uc);
+ return ret;
}
-static int ucsi_ccg_cmd(struct ucsi_ppm *ppm, struct ucsi_control *ctrl)
-{
- struct ucsi_ccg *uc = container_of(ppm, struct ucsi_ccg, ppm);
-
- ppm->data->ctrl.raw_cmd = ctrl->raw_cmd;
- return ucsi_ccg_send_data(uc);
-}
+static const struct ucsi_operations ucsi_ccg_ops = {
+ .read = ucsi_ccg_read,
+ .sync_write = ucsi_ccg_sync_write,
+ .async_write = ucsi_ccg_async_write
+};
static irqreturn_t ccg_irq_handler(int irq, void *data)
{
+ u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(UCSI_CCI);
struct ucsi_ccg *uc = data;
+ u8 intr_reg;
+ u32 cci;
+ int ret;
+
+ ret = ccg_read(uc, CCGX_RAB_INTR_REG, &intr_reg, sizeof(intr_reg));
+ if (ret)
+ return ret;
+
+ ret = ccg_read(uc, reg, (void *)&cci, sizeof(cci));
+ if (ret)
+ goto err_clear_irq;
+
+ if (UCSI_CCI_CONNECTOR(cci))
+ ucsi_connector_change(uc->ucsi, UCSI_CCI_CONNECTOR(cci));
+
+ if (test_bit(DEV_CMD_PENDING, &uc->flags) &&
+ cci & (UCSI_CCI_ACK_COMPLETE | UCSI_CCI_COMMAND_COMPLETE))
+ complete(&uc->complete);
- ucsi_notify(uc->ucsi);
+err_clear_irq:
+ ccg_write(uc, CCGX_RAB_INTR_REG, &intr_reg, sizeof(intr_reg));
return IRQ_HANDLED;
}
static void ccg_pm_workaround_work(struct work_struct *pm_work)
{
- struct ucsi_ccg *uc = container_of(pm_work, struct ucsi_ccg, pm_work);
-
- ucsi_notify(uc->ucsi);
+ ccg_irq_handler(0, container_of(pm_work, struct ucsi_ccg, pm_work));
}
static int get_fw_info(struct ucsi_ccg *uc)
@@ -1027,10 +1026,10 @@ static int ccg_restart(struct ucsi_ccg *uc)
return status;
}
- uc->ucsi = ucsi_register_ppm(dev, &uc->ppm);
- if (IS_ERR(uc->ucsi)) {
- dev_err(uc->dev, "ucsi_register_ppm failed\n");
- return PTR_ERR(uc->ucsi);
+ status = ucsi_register(uc->ucsi);
+ if (status) {
+ dev_err(uc->dev, "failed to register the interface\n");
+ return status;
}
return 0;
@@ -1047,7 +1046,7 @@ static void ccg_update_firmware(struct work_struct *work)
return;
if (flash_mode != FLASH_NOT_NEEDED) {
- ucsi_unregister_ppm(uc->ucsi);
+ ucsi_unregister(uc->ucsi);
free_irq(uc->irq, uc);
ccg_fw_update(uc, flash_mode);
@@ -1091,21 +1090,15 @@ static int ucsi_ccg_probe(struct i2c_client *client,
struct device *dev = &client->dev;
struct ucsi_ccg *uc;
int status;
- u16 rab;
uc = devm_kzalloc(dev, sizeof(*uc), GFP_KERNEL);
if (!uc)
return -ENOMEM;
- uc->ppm.data = devm_kzalloc(dev, sizeof(struct ucsi_data), GFP_KERNEL);
- if (!uc->ppm.data)
- return -ENOMEM;
-
- uc->ppm.cmd = ucsi_ccg_cmd;
- uc->ppm.sync = ucsi_ccg_sync;
uc->dev = dev;
uc->client = client;
mutex_init(&uc->lock);
+ init_completion(&uc->complete);
INIT_WORK(&uc->work, ccg_update_firmware);
INIT_WORK(&uc->pm_work, ccg_pm_workaround_work);
@@ -1133,30 +1126,25 @@ static int ucsi_ccg_probe(struct i2c_client *client,
if (uc->info.mode & CCG_DEVINFO_PDPORTS_MASK)
uc->port_num++;
+ uc->ucsi = ucsi_create(dev, &ucsi_ccg_ops);
+ if (IS_ERR(uc->ucsi))
+ return PTR_ERR(uc->ucsi);
+
+ ucsi_set_drvdata(uc->ucsi, uc);
+
status = request_threaded_irq(client->irq, NULL, ccg_irq_handler,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
dev_name(dev), uc);
if (status < 0) {
dev_err(uc->dev, "request_threaded_irq failed - %d\n", status);
- return status;
+ goto out_ucsi_destroy;
}
uc->irq = client->irq;
- uc->ucsi = ucsi_register_ppm(dev, &uc->ppm);
- if (IS_ERR(uc->ucsi)) {
- dev_err(uc->dev, "ucsi_register_ppm failed\n");
- return PTR_ERR(uc->ucsi);
- }
-
- rab = CCGX_RAB_UCSI_DATA_BLOCK(offsetof(struct ucsi_data, version));
- status = ccg_read(uc, rab, (u8 *)(uc->ppm.data) +
- offsetof(struct ucsi_data, version),
- sizeof(uc->ppm.data->version));
- if (status < 0) {
- ucsi_unregister_ppm(uc->ucsi);
- return status;
- }
+ status = ucsi_register(uc->ucsi);
+ if (status)
+ goto out_free_irq;
i2c_set_clientdata(client, uc);
@@ -1167,6 +1155,13 @@ static int ucsi_ccg_probe(struct i2c_client *client,
pm_runtime_idle(uc->dev);
return 0;
+
+out_free_irq:
+ free_irq(uc->irq, uc);
+out_ucsi_destroy:
+ ucsi_destroy(uc->ucsi);
+
+ return status;
}
static int ucsi_ccg_remove(struct i2c_client *client)
@@ -1175,8 +1170,9 @@ static int ucsi_ccg_remove(struct i2c_client *client)
cancel_work_sync(&uc->pm_work);
cancel_work_sync(&uc->work);
- ucsi_unregister_ppm(uc->ucsi);
pm_runtime_disable(uc->dev);
+ ucsi_unregister(uc->ucsi);
+ ucsi_destroy(uc->ucsi);
free_irq(uc->irq, uc);
return 0;
diff --git a/drivers/usb/usbip/Kconfig b/drivers/usb/usbip/Kconfig
index 2f86b28fa3da..7bbae7a08642 100644
--- a/drivers/usb/usbip/Kconfig
+++ b/drivers/usb/usbip/Kconfig
@@ -4,6 +4,7 @@ config USBIP_CORE
tristate "USB/IP support"
depends on NET
select USB_COMMON
+ select SGL_ALLOC
---help---
This enables pushing USB packets over IP to allow remote
machines direct access to USB devices. It provides the
diff --git a/drivers/usb/usbip/stub_rx.c b/drivers/usb/usbip/stub_rx.c
index 66edfeea68fe..e2b019532234 100644
--- a/drivers/usb/usbip/stub_rx.c
+++ b/drivers/usb/usbip/stub_rx.c
@@ -470,18 +470,50 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
if (pipe == -1)
return;
+ /*
+ * Smatch reported the error case where use_sg is true and buf_len is 0.
+ * In this case, It adds SDEV_EVENT_ERROR_MALLOC and stub_priv will be
+ * released by stub event handler and connection will be shut down.
+ */
priv = stub_priv_alloc(sdev, pdu);
if (!priv)
return;
buf_len = (unsigned long long)pdu->u.cmd_submit.transfer_buffer_length;
+ if (use_sg && !buf_len) {
+ dev_err(&udev->dev, "sg buffer with zero length\n");
+ goto err_malloc;
+ }
+
/* allocate urb transfer buffer, if needed */
if (buf_len) {
if (use_sg) {
sgl = sgl_alloc(buf_len, GFP_KERNEL, &nents);
if (!sgl)
goto err_malloc;
+
+ /* Check if the server's HCD supports SG */
+ if (!udev->bus->sg_tablesize) {
+ /*
+ * If the server's HCD doesn't support SG, break
+ * a single SG request into several URBs and map
+ * each SG list entry to corresponding URB
+ * buffer. The previously allocated SG list is
+ * stored in priv->sgl (If the server's HCD
+ * support SG, SG list is stored only in
+ * urb->sg) and it is used as an indicator that
+ * the server split single SG request into
+ * several URBs. Later, priv->sgl is used by
+ * stub_complete() and stub_send_ret_submit() to
+ * reassemble the divied URBs.
+ */
+ support_sg = 0;
+ num_urbs = nents;
+ priv->completed_urbs = 0;
+ pdu->u.cmd_submit.transfer_flags &=
+ ~URB_DMA_MAP_SG;
+ }
} else {
buffer = kzalloc(buf_len, GFP_KERNEL);
if (!buffer)
@@ -489,24 +521,6 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
}
}
- /* Check if the server's HCD supports SG */
- if (use_sg && !udev->bus->sg_tablesize) {
- /*
- * If the server's HCD doesn't support SG, break a single SG
- * request into several URBs and map each SG list entry to
- * corresponding URB buffer. The previously allocated SG
- * list is stored in priv->sgl (If the server's HCD support SG,
- * SG list is stored only in urb->sg) and it is used as an
- * indicator that the server split single SG request into
- * several URBs. Later, priv->sgl is used by stub_complete() and
- * stub_send_ret_submit() to reassemble the divied URBs.
- */
- support_sg = 0;
- num_urbs = nents;
- priv->completed_urbs = 0;
- pdu->u.cmd_submit.transfer_flags &= ~URB_DMA_MAP_SG;
- }
-
/* allocate urb array */
priv->num_urbs = num_urbs;
priv->urbs = kmalloc_array(num_urbs, sizeof(*priv->urbs), GFP_KERNEL);
diff --git a/drivers/usb/usbip/stub_tx.c b/drivers/usb/usbip/stub_tx.c
index 36010a82b359..b1c2f6781cb3 100644
--- a/drivers/usb/usbip/stub_tx.c
+++ b/drivers/usb/usbip/stub_tx.c
@@ -291,7 +291,7 @@ static int stub_send_ret_submit(struct stub_device *sdev)
kfree(iov);
usbip_event_add(&sdev->ud,
SDEV_EVENT_ERROR_TCP);
- return -1;
+ return -1;
}
}
diff --git a/include/linux/usb/role.h b/include/linux/usb/role.h
index 2d77f97df72d..efac3af83d6b 100644
--- a/include/linux/usb/role.h
+++ b/include/linux/usb/role.h
@@ -51,6 +51,9 @@ struct usb_role_switch *fwnode_usb_role_switch_get(struct fwnode_handle *node);
void usb_role_switch_put(struct usb_role_switch *sw);
struct usb_role_switch *
+usb_role_switch_find_by_fwnode(const struct fwnode_handle *fwnode);
+
+struct usb_role_switch *
usb_role_switch_register(struct device *parent,
const struct usb_role_switch_desc *desc);
void usb_role_switch_unregister(struct usb_role_switch *sw);
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
index f516955a0cf4..e7979c01c351 100644
--- a/include/linux/usb/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -46,45 +46,6 @@ enum tcpm_transmit_type {
TCPC_TX_BIST_MODE_2 = 7
};
-/**
- * struct tcpc_config - Port configuration
- * @src_pdo: PDO parameters sent to port partner as response to
- * PD_CTRL_GET_SOURCE_CAP message
- * @nr_src_pdo: Number of entries in @src_pdo
- * @snk_pdo: PDO parameters sent to partner as response to
- * PD_CTRL_GET_SINK_CAP message
- * @nr_snk_pdo: Number of entries in @snk_pdo
- * @operating_snk_mw:
- * Required operating sink power in mW
- * @type: Port type (TYPEC_PORT_DFP, TYPEC_PORT_UFP, or
- * TYPEC_PORT_DRP)
- * @default_role:
- * Default port role (TYPEC_SINK or TYPEC_SOURCE).
- * Set to TYPEC_NO_PREFERRED_ROLE if no default role.
- * @try_role_hw:True if try.{Src,Snk} is implemented in hardware
- * @alt_modes: List of supported alternate modes
- */
-struct tcpc_config {
- const u32 *src_pdo;
- unsigned int nr_src_pdo;
-
- const u32 *snk_pdo;
- unsigned int nr_snk_pdo;
-
- const u32 *snk_vdo;
- unsigned int nr_snk_vdo;
-
- unsigned int operating_snk_mw;
-
- enum typec_port_type type;
- enum typec_port_data data;
- enum typec_role default_role;
- bool try_role_hw; /* try.{src,snk} implemented in hardware */
- bool self_powered; /* port belongs to a self powered device */
-
- const struct typec_altmode_desc *alt_modes;
-};
-
/* Mux state attributes */
#define TCPC_MUX_USB_ENABLED BIT(0) /* USB enabled */
#define TCPC_MUX_DP_ENABLED BIT(1) /* DP enabled */
@@ -92,7 +53,6 @@ struct tcpc_config {
/**
* struct tcpc_dev - Port configuration and callback functions
- * @config: Pointer to port configuration
* @fwnode: Pointer to port fwnode
* @get_vbus: Called to read current VBUS state
* @get_current_limit:
@@ -121,7 +81,6 @@ struct tcpc_config {
* @mux: Pointer to multiplexer data
*/
struct tcpc_dev {
- const struct tcpc_config *config;
struct fwnode_handle *fwnode;
int (*init)(struct tcpc_dev *dev);
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index 7df4ecabc78a..0f52723a11bd 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -168,6 +168,23 @@ struct typec_partner_desc {
struct usb_pd_identity *identity;
};
+/**
+ * struct typec_operations - USB Type-C Port Operations
+ * @try_role: Set data role preference for DRP port
+ * @dr_set: Set Data Role
+ * @pr_set: Set Power Role
+ * @vconn_set: Source VCONN
+ * @port_type_set: Set port type
+ */
+struct typec_operations {
+ int (*try_role)(struct typec_port *port, int role);
+ int (*dr_set)(struct typec_port *port, enum typec_data_role role);
+ int (*pr_set)(struct typec_port *port, enum typec_role role);
+ int (*vconn_set)(struct typec_port *port, enum typec_role role);
+ int (*port_type_set)(struct typec_port *port,
+ enum typec_port_type type);
+};
+
/*
* struct typec_capability - USB Type-C Port Capabilities
* @type: Supported power role of the port
@@ -179,11 +196,8 @@ struct typec_partner_desc {
* @sw: Cable plug orientation switch
* @mux: Multiplexer switch for Alternate/Accessory Modes
* @fwnode: Optional fwnode of the port
- * @try_role: Set data role preference for DRP port
- * @dr_set: Set Data Role
- * @pr_set: Set Power Role
- * @vconn_set: Set VCONN Role
- * @port_type_set: Set port type
+ * @driver_data: Private pointer for driver specific info
+ * @ops: Port operations vector
*
* Static capabilities of a single USB Type-C port.
*/
@@ -195,21 +209,10 @@ struct typec_capability {
int prefer_role;
enum typec_accessory accessory[TYPEC_MAX_ACCESSORY];
- struct typec_switch *sw;
- struct typec_mux *mux;
struct fwnode_handle *fwnode;
+ void *driver_data;
- int (*try_role)(const struct typec_capability *,
- int role);
-
- int (*dr_set)(const struct typec_capability *,
- enum typec_data_role);
- int (*pr_set)(const struct typec_capability *,
- enum typec_role);
- int (*vconn_set)(const struct typec_capability *,
- enum typec_role);
- int (*port_type_set)(const struct typec_capability *,
- enum typec_port_type);
+ const struct typec_operations *ops;
};
/* Specific to try_role(). Indicates the user want's to clear the preference. */
@@ -241,6 +244,8 @@ int typec_set_orientation(struct typec_port *port,
enum typec_orientation typec_get_orientation(struct typec_port *port);
int typec_set_mode(struct typec_port *port, int mode);
+void *typec_get_drvdata(struct typec_port *port);
+
int typec_find_port_power_role(const char *name);
int typec_find_power_role(const char *name);
int typec_find_port_data_role(const char *name);
diff --git a/tools/usb/usbip/libsrc/usbip_host_common.c b/tools/usb/usbip/libsrc/usbip_host_common.c
index 2813aa821c82..d1d8ba2a4a40 100644
--- a/tools/usb/usbip/libsrc/usbip_host_common.c
+++ b/tools/usb/usbip/libsrc/usbip_host_common.c
@@ -57,7 +57,7 @@ static int32_t read_attr_usbip_status(struct usbip_usb_device *udev)
}
value = atoi(status);
-
+ close(fd);
return value;
}