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-rw-r--r--include/linux/usb/ch9.h58
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
+
/*-------------------------------------------------------------------------*/
/*