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-rw-r--r--tmk_core/protocol/chibios/usb_main.c11
-rw-r--r--tmk_core/protocol/lufa/lufa.c24
2 files changed, 31 insertions, 4 deletions
diff --git a/tmk_core/protocol/chibios/usb_main.c b/tmk_core/protocol/chibios/usb_main.c
index cb7aeb23b2..13b1e34d28 100644
--- a/tmk_core/protocol/chibios/usb_main.c
+++ b/tmk_core/protocol/chibios/usb_main.c
@@ -708,6 +708,17 @@ void init_usb_driver(USBDriver *usbp) {
void restart_usb_driver(USBDriver *usbp) {
usbStop(usbp);
usbDisconnectBus(usbp);
+
+#if USB_SUSPEND_WAKEUP_DELAY > 0
+ // Some hubs, kvm switches, and monitors do
+ // weird things, with USB device state bouncing
+ // around wildly on wakeup, yielding race
+ // conditions that can corrupt the keyboard state.
+ //
+ // Pause for a while to let things settle...
+ wait_ms(USB_SUSPEND_WAKEUP_DELAY);
+#endif
+
usbStart(usbp, &usbcfg);
usbConnectBus(usbp);
}
diff --git a/tmk_core/protocol/lufa/lufa.c b/tmk_core/protocol/lufa/lufa.c
index 623aa33ff5..74e48222d0 100644
--- a/tmk_core/protocol/lufa/lufa.c
+++ b/tmk_core/protocol/lufa/lufa.c
@@ -435,7 +435,9 @@ void EVENT_USB_Device_Suspend() {
*/
void EVENT_USB_Device_WakeUp() {
print("[W]");
+#if defined(NO_USB_STARTUP_CHECK)
suspend_wakeup_init();
+#endif
#ifdef SLEEP_LED_ENABLE
sleep_led_disable();
@@ -1073,12 +1075,26 @@ int main(void) {
print("Keyboard start.\n");
while (1) {
#if !defined(NO_USB_STARTUP_CHECK)
- while (USB_DeviceState == DEVICE_STATE_Suspended) {
+ if (USB_DeviceState == DEVICE_STATE_Suspended) {
print("[s]");
- suspend_power_down();
- if (USB_Device_RemoteWakeupEnabled && suspend_wakeup_condition()) {
- USB_Device_SendRemoteWakeup();
+ while (USB_DeviceState == DEVICE_STATE_Suspended) {
+ suspend_power_down();
+ if (USB_Device_RemoteWakeupEnabled && suspend_wakeup_condition()) {
+ USB_Device_SendRemoteWakeup();
+ clear_keyboard();
+
+# if USB_SUSPEND_WAKEUP_DELAY > 0
+ // Some hubs, kvm switches, and monitors do
+ // weird things, with USB device state bouncing
+ // around wildly on wakeup, yielding race
+ // conditions that can corrupt the keyboard state.
+ //
+ // Pause for a while to let things settle...
+ wait_ms(USB_SUSPEND_WAKEUP_DELAY);
+# endif
+ }
}
+ suspend_wakeup_init();
}
#endif