From 3a38cde53dc7118b39eafd4fd1f69be4fd7dcd14 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Fri, 29 Mar 2019 16:37:08 +0700
Subject: [PATCH] support set/clear feature Device_remote_wakeup

---
 src/device/usbd.c | 12 +++++++++++-
 src/device/usbd.h |  2 +-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/device/usbd.c b/src/device/usbd.c
index 5127cfaa..7a0d1bca 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -167,13 +167,21 @@ bool usbd_control_xfer_cb (uint8_t rhport, uint8_t ep_addr, xfer_result_t event,
 void usbd_control_set_complete_callback( bool (*fp) (uint8_t, tusb_control_request_t const * ) );
 
 //--------------------------------------------------------------------+
-// APPLICATION API
+// Application API
 //--------------------------------------------------------------------+
 bool tud_mounted(void)
 {
   return _usbd_dev.config_num > 0;
 }
 
+bool tud_remote_wakeup(void)
+{
+  // only wake up host if this feature is enabled
+  if (_usbd_dev.remote_wakeup_en ) dcd_remote_wakeup(TUD_OPT_RHPORT);
+
+  return _usbd_dev.remote_wakeup_en;
+}
+
 //--------------------------------------------------------------------+
 // USBD Task
 //--------------------------------------------------------------------+
@@ -357,6 +365,7 @@ static bool process_control_request(uint8_t rhport, tusb_control_request_t const
         if ( TUSB_REQ_FEATURE_REMOTE_WAKEUP == p_request->wValue )
         {
           // Host enable remote wake up before suspending especially HID device
+          _usbd_dev.remote_wakeup_en = true;
         }
       break;
 
@@ -364,6 +373,7 @@ static bool process_control_request(uint8_t rhport, tusb_control_request_t const
         if ( TUSB_REQ_FEATURE_REMOTE_WAKEUP == p_request->wValue )
         {
           // Host disable remote wake up after resuming
+          _usbd_dev.remote_wakeup_en = false;
         }
       break;
 
diff --git a/src/device/usbd.h b/src/device/usbd.h
index 6bf7eca0..eb99337e 100644
--- a/src/device/usbd.h
+++ b/src/device/usbd.h
@@ -37,7 +37,7 @@
 //--------------------------------------------------------------------+
 // INCLUDE
 //--------------------------------------------------------------------+
-#include <common/tusb_common.h>
+#include "common/tusb_common.h"
 #include "device/dcd.h"
 
 //--------------------------------------------------------------------+