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skipped suspend/resume if not connected

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This commit is contained in:
hathach 2021-08-17 17:00:53 +07:00
parent 02277133ae
commit 9b869463dd
1 changed files with 19 additions and 4 deletions

23
src/device/usbd.c

@ -559,13 +559,28 @@ void tud_task (void)
break;
case DCD_EVENT_SUSPEND:
TU_LOG2(": Remote Wakeup = %u\r\n", _usbd_dev.remote_wakeup_en);
if (tud_suspend_cb) tud_suspend_cb(_usbd_dev.remote_wakeup_en);
// NOTE: When plugging/unplugging device, the D+/D- state are unstable and
// can accidentally meet the SUSPEND condition ( Bus Idle for 3ms ), which result in a series of event
// e.g suspend -> resume -> unplug/plug. Skip suspend/resume if not connected
if ( _usbd_dev.connected )
{
TU_LOG2(": Remote Wakeup = %u\r\n", _usbd_dev.remote_wakeup_en);
if (tud_suspend_cb) tud_suspend_cb(_usbd_dev.remote_wakeup_en);
}else
{
TU_LOG2(" Skipped\r\n");
}
break;
case DCD_EVENT_RESUME:
TU_LOG2("\r\n");
if (tud_resume_cb) tud_resume_cb();
if ( _usbd_dev.connected )
{
TU_LOG2("\r\n");
if (tud_resume_cb) tud_resume_cb();
}else
{
TU_LOG2(" Skipped\r\n");
}
break;
case DCD_EVENT_SOF: