This patch add the definitions for OTG Support Rev 2.0.
The modification is derived from Pavankumar and Vijayavardhans' previous work.

Signed-off-by: Macpaul Lin <[email protected]>
Cc: Pavankumar Kondeti <[email protected]>
Cc: Vijayavardhan Vennapusa <[email protected]>
---
 include/uapi/linux/usb/ch9.h | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
index aa33fd1..9fd83d0 100644
--- a/include/uapi/linux/usb/ch9.h
+++ b/include/uapi/linux/usb/ch9.h
@@ -136,6 +136,12 @@
 #define        TEST_PACKET     4
 #define        TEST_FORCE_EN   5
 
+/* OTG test mode feature bits
+ * See ECN OTG2.0 spec Table 6-8
+ */
+#define TEST_OTG_SRP_REQD      6
+#define TEST_OTG_HNP_REQD      7
+
 /*
  * New Feature Selectors as added by USB 3.0
  * See USB 3.0 spec Table 9-7
@@ -155,11 +161,19 @@
 /*
  * Interface status, Figure 9-5 USB 3.0 spec
  */
-#define USB_INTRF_STAT_FUNC_RW_CAP     1
-#define USB_INTRF_STAT_FUNC_RW         2
+#define USB_INTRF_STAT_FUNC_RW_CAP     1
+#define USB_INTRF_STAT_FUNC_RW         2
 
 #define USB_ENDPOINT_HALT              0       /* IN/OUT will STALL */
 
+/* OTG 2.0 spec 6.2 and 6.3 sections */
+#define OTG_STATUS_SELECTOR            0xF000
+#define HOST_REQUEST_FLAG              0
+#define THOST_REQ_POLL                 1500    /* msec (1000 - 2000) */
+#define OTG_TTST_SUSP                  70      /* msec (0 - 100) */
+
+#define OTG_TTST_VBUS_OFF              1
+
 /* Bit array elements as returned by the USB_REQ_GET_STATUS request. */
 #define USB_DEV_STAT_U1_ENABLED                2       /* transition into U1 
state */
 #define USB_DEV_STAT_U2_ENABLED                3       /* transition into U2 
state */
@@ -674,6 +688,7 @@ struct usb_otg_descriptor {
        __u8  bmAttributes;     /* support for HNP, SRP, etc */
 } __attribute__ ((packed));
 
+#define USB_DT_OTG_SIZE                5
 /* from usb_otg_descriptor.bmAttributes */
 #define USB_OTG_SRP            (1 << 0)
 #define USB_OTG_HNP            (1 << 1)        /* swap host/device roles */
-- 
2.1.0

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