diff options
Diffstat (limited to 'include/linux/usb/ch9.h')
| -rw-r--r-- | include/linux/usb/ch9.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index af21f3115919..d1d732c2838d 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -88,6 +88,8 @@ #define USB_REQ_GET_INTERFACE 0x0A #define USB_REQ_SET_INTERFACE 0x0B #define USB_REQ_SYNCH_FRAME 0x0C +#define USB_REQ_SET_SEL 0x30 +#define USB_REQ_SET_ISOCH_DELAY 0x31 #define USB_REQ_SET_ENCRYPTION 0x0D /* Wireless USB */ #define USB_REQ_GET_ENCRYPTION 0x0E @@ -390,6 +392,11 @@ struct usb_endpoint_descriptor { #define USB_ENDPOINT_XFER_INT 3 #define USB_ENDPOINT_MAX_ADJUSTABLE 0x80 +/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */ +#define USB_ENDPOINT_INTRTYPE 0x30 +#define USB_ENDPOINT_INTR_PERIODIC (0 << 4) +#define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4) + #define USB_ENDPOINT_SYNCTYPE 0x0c #define USB_ENDPOINT_SYNC_NONE (0 << 2) #define USB_ENDPOINT_SYNC_ASYNC (1 << 2) @@ -592,6 +599,12 @@ static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd) return __le16_to_cpu(epd->wMaxPacketSize); } +static inline int usb_endpoint_interrupt_type( + const struct usb_endpoint_descriptor *epd) +{ + return epd->bmAttributes & USB_ENDPOINT_INTRTYPE; +} + /*-------------------------------------------------------------------------*/ /* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */ @@ -933,6 +946,51 @@ enum usb_device_state { */ }; +enum usb3_link_state { + USB3_LPM_U0 = 0, + USB3_LPM_U1, + USB3_LPM_U2, + USB3_LPM_U3 +}; + +/* + * A U1 timeout of 0x0 means the parent hub will reject any transitions to U1. + * 0xff means the parent hub will accept transitions to U1, but will not + * initiate a transition. + * + * A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to + * U1 after that many microseconds. Timeouts of 0x80 to 0xFE are reserved + * values. + * + * A U2 timeout of 0x0 means the parent hub will reject any transitions to U2. + * 0xff means the parent hub will accept transitions to U2, but will not + * initiate a transition. + * + * A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to + * U2 after N*256 microseconds. Therefore a U2 timeout value of 0x1 means a U2 + * idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means + * 65.024ms. + */ +#define USB3_LPM_DISABLED 0x0 +#define USB3_LPM_U1_MAX_TIMEOUT 0x7F +#define USB3_LPM_U2_MAX_TIMEOUT 0xFE +#define USB3_LPM_DEVICE_INITIATED 0xFF + +struct usb_set_sel_req { + __u8 u1_sel; + __u8 u1_pel; + __le16 u2_sel; + __le16 u2_pel; +} __attribute__ ((packed)); + +/* + * The Set System Exit Latency control transfer provides one byte each for + * U1 SEL and U1 PEL, so the max exit latency is 0xFF. U2 SEL and U2 PEL each + * are two bytes long. + */ +#define USB3_LPM_MAX_U1_SEL_PEL 0xFF +#define USB3_LPM_MAX_U2_SEL_PEL 0xFFFF + /*-------------------------------------------------------------------------*/ /* |