ENGR00319720-3 usb: common: otg-fsm: add HNP polling request sending funciton

This patch adds OTG status selector request sending function, can be used
to poll peripheral if it wants to be host.

Signed-off-by: Li Jun <b47624@freescale.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/usb/otg-fsm.h b/include/linux/usb/otg-fsm.h
index 1deea98838b2..d4bf33b1ad6f 100644
--- a/include/linux/usb/otg-fsm.h
+++ b/include/linux/usb/otg-fsm.h
@@ -40,6 +40,14 @@
 #define PROTO_HOST      (1)
 #define PROTO_GADGET    (2)
 
+#define OTG_STS_SELECTOR        0xF000  /* OTG status selector, according to
+                                         * OTG and EH 2.0 Charpter 6.2.3
+                                         * Table:6-4
+                                         */
+#define HOST_REQUEST_FLAG       1       /* Host request flag, according to
+                                         * OTG and EH 2.0 Charpter 6.2.3
+                                         * Table:6-5
+                                         */
 enum otg_fsm_timer {
         /* Standard OTG timers */
         A_WAIT_VRISE,
@@ -240,6 +248,7 @@ static inline int otg_start_gadget(struct otg_fsm *fsm, int on)
         return fsm->ops->start_gadget(fsm, on);
 }
 
+int otg_hnp_polling(struct otg_fsm *fsm);
 int otg_statemachine(struct otg_fsm *fsm);
 
 #endif /* __LINUX_USB_OTG_FSM_H */