From b1a6b161f3058cd736cc27e04e373e22d161c3f1 Mon Sep 17 00:00:00 2001
From: LSChyi <alan81920@gmail.com>
Date: Sun, 4 Oct 2020 03:19:04 +0800
Subject: [PATCH] Add hotfix for chibios keyboards not wake (#10088)

---
 tmk_core/protocol/chibios/main.c     | 1 +
 tmk_core/protocol/chibios/usb_main.c | 7 +++++++
 tmk_core/protocol/chibios/usb_main.h | 3 +++
 3 files changed, 11 insertions(+)

diff --git a/tmk_core/protocol/chibios/main.c b/tmk_core/protocol/chibios/main.c
index efe6b07d6f..7b25d7ba11 100644
--- a/tmk_core/protocol/chibios/main.c
+++ b/tmk_core/protocol/chibios/main.c
@@ -236,6 +236,7 @@ int main(void) {
                 /* Remote wakeup */
                 if (suspend_wakeup_condition()) {
                     usbWakeupHost(&USB_DRIVER);
+                    restart_usb_driver(&USB_DRIVER);
                 }
             }
             /* Woken up */
diff --git a/tmk_core/protocol/chibios/usb_main.c b/tmk_core/protocol/chibios/usb_main.c
index ae33e86a70..59f6feb951 100644
--- a/tmk_core/protocol/chibios/usb_main.c
+++ b/tmk_core/protocol/chibios/usb_main.c
@@ -574,6 +574,13 @@ void init_usb_driver(USBDriver *usbp) {
     chVTObjectInit(&keyboard_idle_timer);
 }
 
+void restart_usb_driver(USBDriver *usbp) {
+    usbStop(usbp);
+    usbDisconnectBus(usbp);
+    usbStart(usbp, &usbcfg);
+    usbConnectBus(usbp);
+}
+
 /* ---------------------------------------------------------
  *                  Keyboard functions
  * ---------------------------------------------------------
diff --git a/tmk_core/protocol/chibios/usb_main.h b/tmk_core/protocol/chibios/usb_main.h
index 94baf9b35e..d8813f4801 100644
--- a/tmk_core/protocol/chibios/usb_main.h
+++ b/tmk_core/protocol/chibios/usb_main.h
@@ -35,6 +35,9 @@
 /* Initialize the USB driver and bus */
 void init_usb_driver(USBDriver *usbp);
 
+/* Restart the USB driver and bus */
+void restart_usb_driver(USBDriver *usbp);
+
 /* ---------------
  * Keyboard header
  * ---------------