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Diffstat (limited to 'drivers/usb/serial/qcserial.c')
-rw-r--r--drivers/usb/serial/qcserial.c256
1 files changed, 215 insertions, 41 deletions
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index c65437cfd4a2..13c664317a05 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Qualcomm Serial USB driver
*
* Copyright (c) 2008 QUALCOMM Incorporated.
* Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
* Copyright (c) 2009 Novell Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
*/
#include <linux/tty.h>
@@ -22,8 +18,22 @@
#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"
+#define QUECTEL_EC20_PID 0x9215
+
+/* standard device layouts supported by this driver */
+enum qcserial_layouts {
+ QCSERIAL_G2K = 0, /* Gobi 2000 */
+ QCSERIAL_G1K = 1, /* Gobi 1000 */
+ QCSERIAL_SWI = 2, /* Sierra Wireless */
+ QCSERIAL_HWI = 3, /* Huawei */
+};
+
#define DEVICE_G1K(v, p) \
- USB_DEVICE(v, p), .driver_info = 1
+ USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K
+#define DEVICE_SWI(v, p) \
+ USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI
+#define DEVICE_HWI(v, p) \
+ USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI
static const struct usb_device_id id_table[] = {
/* Gobi 1000 devices */
@@ -110,6 +120,7 @@ static const struct usb_device_id id_table[] = {
{USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */
{USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */
{USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
+ {USB_DEVICE(0x413c, 0x81a6)}, /* Dell DW5570 QDL (MC8805) */
{USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */
{USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */
{USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */
@@ -126,24 +137,97 @@ static const struct usb_device_id id_table[] = {
{USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */
{USB_DEVICE(0x0AF0, 0x8120)}, /* Option GTM681W */
- /* non Gobi Qualcomm serial devices */
- {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)}, /* Sierra Wireless MC7700 Device Management */
- {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 2)}, /* Sierra Wireless MC7700 NMEA */
- {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 3)}, /* Sierra Wireless MC7700 Modem */
- {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 0)}, /* Sierra Wireless MC7750 Device Management */
- {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 2)}, /* Sierra Wireless MC7750 NMEA */
- {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 3)}, /* Sierra Wireless MC7750 Modem */
- {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 0)}, /* Sierra Wireless MC7710 Device Management */
- {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 2)}, /* Sierra Wireless MC7710 NMEA */
- {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 3)}, /* Sierra Wireless MC7710 Modem */
- {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)}, /* Sierra Wireless EM7700 Device Management */
- {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)}, /* Sierra Wireless EM7700 NMEA */
- {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)}, /* Sierra Wireless EM7700 Modem */
+ /* non-Gobi Sierra Wireless devices */
+ {DEVICE_SWI(0x03f0, 0x4e1d)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
+ {DEVICE_SWI(0x0f3d, 0x68a2)}, /* Sierra Wireless MC7700 */
+ {DEVICE_SWI(0x114f, 0x68a2)}, /* Sierra Wireless MC7750 */
+ {DEVICE_SWI(0x1199, 0x68a2)}, /* Sierra Wireless MC7710 */
+ {DEVICE_SWI(0x1199, 0x68c0)}, /* Sierra Wireless MC7304/MC7354 */
+ {DEVICE_SWI(0x1199, 0x901c)}, /* Sierra Wireless EM7700 */
+ {DEVICE_SWI(0x1199, 0x901e)}, /* Sierra Wireless EM7355 QDL */
+ {DEVICE_SWI(0x1199, 0x901f)}, /* Sierra Wireless EM7355 */
+ {DEVICE_SWI(0x1199, 0x9040)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9041)}, /* Sierra Wireless MC7305/MC7355 */
+ {DEVICE_SWI(0x1199, 0x9051)}, /* Netgear AirCard 340U */
+ {DEVICE_SWI(0x1199, 0x9053)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9054)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9055)}, /* Netgear AirCard 341U */
+ {DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9062)}, /* Sierra Wireless EM7305 QDL */
+ {DEVICE_SWI(0x1199, 0x9063)}, /* Sierra Wireless EM7305 */
+ {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */
+ {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */
+ {DEVICE_SWI(0x1199, 0x907a)}, /* Sierra Wireless EM74xx QDL */
+ {DEVICE_SWI(0x1199, 0x907b)}, /* Sierra Wireless EM74xx */
+ {DEVICE_SWI(0x1199, 0x9090)}, /* Sierra Wireless EM7565 QDL */
+ {DEVICE_SWI(0x1199, 0x9091)}, /* Sierra Wireless EM7565 */
+ {DEVICE_SWI(0x1199, 0x90d2)}, /* Sierra Wireless EM9191 QDL */
+ {DEVICE_SWI(0x1199, 0x90e4)}, /* Sierra Wireless EM86xx QDL*/
+ {DEVICE_SWI(0x1199, 0x90e5)}, /* Sierra Wireless EM86xx */
+ {DEVICE_SWI(0x1199, 0xc080)}, /* Sierra Wireless EM7590 QDL */
+ {DEVICE_SWI(0x1199, 0xc081)}, /* Sierra Wireless EM7590 */
+ {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
+ {DEVICE_SWI(0x413c, 0x81b5)}, /* Dell Wireless 5811e QDL */
+ {DEVICE_SWI(0x413c, 0x81b6)}, /* Dell Wireless 5811e QDL */
+ {DEVICE_SWI(0x413c, 0x81c2)}, /* Dell Wireless 5811e */
+ {DEVICE_SWI(0x413c, 0x81cb)}, /* Dell Wireless 5816e QDL */
+ {DEVICE_SWI(0x413c, 0x81cc)}, /* Dell Wireless 5816e */
+ {DEVICE_SWI(0x413c, 0x81cf)}, /* Dell Wireless 5819 */
+ {DEVICE_SWI(0x413c, 0x81d0)}, /* Dell Wireless 5819 */
+ {DEVICE_SWI(0x413c, 0x81d1)}, /* Dell Wireless 5818 */
+ {DEVICE_SWI(0x413c, 0x81d2)}, /* Dell Wireless 5818 */
+ {DEVICE_SWI(0x413c, 0x8217)}, /* Dell Wireless DW5826e */
+ {DEVICE_SWI(0x413c, 0x8218)}, /* Dell Wireless DW5826e QDL */
+
+ /* Huawei devices */
+ {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
+static int handle_quectel_ec20(struct device *dev, int ifnum)
+{
+ int altsetting = 0;
+
+ /*
+ * Quectel EC20 Mini PCIe LTE module layout:
+ * 0: DM/DIAG (use libqcdm from ModemManager for communication)
+ * 1: NMEA
+ * 2: AT-capable modem port
+ * 3: Modem interface
+ * 4: NDIS
+ */
+ switch (ifnum) {
+ case 0:
+ dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n");
+ break;
+ case 1:
+ dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n");
+ break;
+ case 2:
+ case 3:
+ dev_dbg(dev, "Quectel EC20 Modem port found\n");
+ break;
+ case 4:
+ /* Don't claim the QMI/net interface */
+ altsetting = -1;
+ break;
+ }
+
+ return altsetting;
+}
+
static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
struct usb_host_interface *intf = serial->interface->cur_altsetting;
@@ -151,10 +235,12 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
int retval = -ENODEV;
__u8 nintf;
__u8 ifnum;
- bool is_gobi1k = id->driver_info ? true : false;
int altsetting = -1;
+ bool sendsetup = false;
- dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);
+ /* we only support vendor specific functions */
+ if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
+ goto done;
nintf = serial->dev->actconfig->desc.bNumInterfaces;
dev_dbg(dev, "Num Interfaces = %d\n", nintf);
@@ -165,11 +251,11 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
/* QDL mode */
/* Gobi 2000 has a single altsetting, older ones have two */
if (serial->interface->num_altsetting == 2)
- intf = &serial->interface->altsetting[1];
+ intf = usb_altnum_to_altsetting(serial->interface, 1);
else if (serial->interface->num_altsetting > 2)
goto done;
- if (intf->desc.bNumEndpoints == 2 &&
+ if (intf && intf->desc.bNumEndpoints == 2 &&
usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
dev_dbg(dev, "QDL port found\n");
@@ -183,32 +269,29 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
}
- /* allow any number of interfaces when doing direct interface match */
- if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) {
- dev_dbg(dev, "Generic Qualcomm serial interface found\n");
- altsetting = 0;
- goto done;
- }
-
- if (nintf < 3 || nintf > 4) {
- dev_err(dev, "unknown number of interfaces: %d\n", nintf);
- goto done;
- }
-
/* default to enabling interface */
altsetting = 0;
- /* Composite mode; don't bind to the QMI/net interface as that
+ /*
+ * Composite mode; don't bind to the QMI/net interface as that
* gets handled by other drivers.
*/
- if (is_gobi1k) {
- /* Gobi 1K USB layout:
+ switch (id->driver_info) {
+ case QCSERIAL_G1K:
+ /*
+ * Gobi 1K USB layout:
* 0: DM/DIAG (use libqcdm from ModemManager for communication)
* 1: serial port (doesn't respond)
* 2: AT-capable modem port
* 3: QMI/net
*/
+ if (nintf < 3 || nintf > 4) {
+ dev_err(dev, "unknown number of interfaces: %d\n", nintf);
+ altsetting = -1;
+ goto done;
+ }
+
if (ifnum == 0) {
dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n");
altsetting = 1;
@@ -216,13 +299,27 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
dev_dbg(dev, "Modem port found\n");
else
altsetting = -1;
- } else {
- /* Gobi 2K+ USB layout:
+ break;
+ case QCSERIAL_G2K:
+ /* handle non-standard layouts */
+ if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) {
+ altsetting = handle_quectel_ec20(dev, ifnum);
+ goto done;
+ }
+
+ /*
+ * Gobi 2K+ USB layout:
* 0: QMI/net
* 1: DM/DIAG (use libqcdm from ModemManager for communication)
* 2: AT-capable modem port
* 3: NMEA
*/
+ if (nintf < 3 || nintf > 4) {
+ dev_err(dev, "unknown number of interfaces: %d\n", nintf);
+ altsetting = -1;
+ goto done;
+ }
+
switch (ifnum) {
case 0:
/* Don't claim the QMI/net interface */
@@ -243,6 +340,73 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
break;
}
+ break;
+ case QCSERIAL_SWI:
+ /*
+ * Sierra Wireless layout:
+ * 0: DM/DIAG (use libqcdm from ModemManager for communication)
+ * 2: NMEA
+ * 3: AT-capable modem port
+ * 8: QMI/net
+ */
+ switch (ifnum) {
+ case 0:
+ dev_dbg(dev, "DM/DIAG interface found\n");
+ break;
+ case 2:
+ dev_dbg(dev, "NMEA GPS interface found\n");
+ sendsetup = true;
+ break;
+ case 3:
+ dev_dbg(dev, "Modem port found\n");
+ sendsetup = true;
+ break;
+ default:
+ /* don't claim any unsupported interface */
+ altsetting = -1;
+ break;
+ }
+ break;
+ case QCSERIAL_HWI:
+ /*
+ * Huawei devices map functions by subclass + protocol
+ * instead of interface numbers. The protocol identify
+ * a specific function, while the subclass indicate a
+ * specific firmware source
+ *
+ * This is a list of functions known to be non-serial. The rest
+ * are assumed to be serial and will be handled by this driver
+ */
+ switch (intf->desc.bInterfaceProtocol) {
+ /* QMI combined (qmi_wwan) */
+ case 0x07:
+ case 0x37:
+ case 0x67:
+ /* QMI data (qmi_wwan) */
+ case 0x08:
+ case 0x38:
+ case 0x68:
+ /* QMI control (qmi_wwan) */
+ case 0x09:
+ case 0x39:
+ case 0x69:
+ /* NCM like (huawei_cdc_ncm) */
+ case 0x16:
+ case 0x46:
+ case 0x76:
+ altsetting = -1;
+ break;
+ default:
+ dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n",
+ intf->desc.bInterfaceClass,
+ intf->desc.bInterfaceSubClass,
+ intf->desc.bInterfaceProtocol);
+ }
+ break;
+ default:
+ dev_err(dev, "unsupported device layout type: %lu\n",
+ id->driver_info);
+ break;
}
done:
@@ -256,17 +420,25 @@ done:
}
}
+ if (!retval)
+ usb_set_serial_data(serial, (void *)(unsigned long)sendsetup);
+
return retval;
}
static int qc_attach(struct usb_serial *serial)
{
struct usb_wwan_intf_private *data;
+ bool sendsetup;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
+ sendsetup = !!(unsigned long)(usb_get_serial_data(serial));
+ if (sendsetup)
+ data->use_send_setup = 1;
+
spin_lock_init(&data->susp_lock);
usb_set_serial_data(serial, data);
@@ -284,7 +456,6 @@ static void qc_release(struct usb_serial *serial)
static struct usb_serial_driver qcdevice = {
.driver = {
- .owner = THIS_MODULE,
.name = "qcserial",
},
.description = "Qualcomm USB modem",
@@ -293,9 +464,12 @@ static struct usb_serial_driver qcdevice = {
.probe = qcprobe,
.open = usb_wwan_open,
.close = usb_wwan_close,
+ .dtr_rts = usb_wwan_dtr_rts,
.write = usb_wwan_write,
.write_room = usb_wwan_write_room,
.chars_in_buffer = usb_wwan_chars_in_buffer,
+ .tiocmget = usb_wwan_tiocmget,
+ .tiocmset = usb_wwan_tiocmset,
.attach = qc_attach,
.release = qc_release,
.port_probe = usb_wwan_port_probe,
generated by cgit (git 2.34.1) at 2025-12-25 06:07:08 +0000