diff options
Diffstat (limited to 'drivers/usb/host/xhci-ext-caps.h')
| -rw-r--r-- | drivers/usb/host/xhci-ext-caps.h | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h index fa59b242cd51..67ecf7320c62 100644 --- a/drivers/usb/host/xhci-ext-caps.h +++ b/drivers/usb/host/xhci-ext-caps.h @@ -7,8 +7,9 @@ * Author: Sarah Sharp * Some code borrowed from the Linux EHCI driver. */ -/* Up to 16 ms to halt an HC */ -#define XHCI_MAX_HALT_USEC (16*1000) + +/* HC should halt within 16 ms, but use 32 ms as some hosts take longer */ +#define XHCI_MAX_HALT_USEC (32 * 1000) /* HC not running - set to 1 when run/stop bit is cleared. */ #define XHCI_STS_HALT (1<<0) @@ -41,6 +42,7 @@ #define XHCI_EXT_CAPS_DEBUG 10 /* Vendor caps */ #define XHCI_EXT_CAPS_VENDOR_INTEL 192 +#define XHCI_EXT_CAPS_INTEL_SPR_SHADOW 206 /* USB Legacy Support Capability - section 7.1.1 */ #define XHCI_HC_BIOS_OWNED (1 << 16) #define XHCI_HC_OS_OWNED (1 << 24) @@ -63,6 +65,10 @@ #define XHCI_HLC (1 << 19) #define XHCI_BLC (1 << 20) +/* Intel SPR shadow capability */ +#define XHCI_INTEL_SPR_ESS_PORT_OFFSET 0x8ac4 /* SuperSpeed port control */ +#define XHCI_INTEL_SPR_TUNEN BIT(4) /* Tunnel mode enabled */ + /* command register values to disable interrupts and halt the HC */ /* start/stop HC execution - do not write unless HC is halted*/ #define XHCI_CMD_RUN (1 << 0) @@ -78,6 +84,33 @@ /* true: Controller Not Ready to accept doorbell or op reg writes after reset */ #define XHCI_STS_CNR (1 << 11) +/** + * struct xhci_protocol_caps + * @revision: major revision, minor revision, capability ID, + * and next capability pointer. + * @name_string: Four ASCII characters to say which spec this xHC + * follows, typically "USB ". + * @port_info: Port offset, count, and protocol-defined information. + */ +struct xhci_protocol_caps { + u32 revision; + u32 name_string; + u32 port_info; +}; + +#define XHCI_EXT_PORT_MAJOR(x) (((x) >> 24) & 0xff) +#define XHCI_EXT_PORT_MINOR(x) (((x) >> 16) & 0xff) +#define XHCI_EXT_PORT_PSIC(x) (((x) >> 28) & 0x0f) +#define XHCI_EXT_PORT_OFF(x) ((x) & 0xff) +#define XHCI_EXT_PORT_COUNT(x) (((x) >> 8) & 0xff) + +#define XHCI_EXT_PORT_PSIV(x) (((x) >> 0) & 0x0f) +#define XHCI_EXT_PORT_PSIE(x) (((x) >> 4) & 0x03) +#define XHCI_EXT_PORT_PLT(x) (((x) >> 6) & 0x03) +#define XHCI_EXT_PORT_PFD(x) (((x) >> 8) & 0x01) +#define XHCI_EXT_PORT_LP(x) (((x) >> 14) & 0x03) +#define XHCI_EXT_PORT_PSIM(x) (((x) >> 16) & 0xffff) + #include <linux/io.h> /** |