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Merge pull request #1026 from hathach/suspend-resume-followup

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skipped suspend/resume if not connected
This commit is contained in:
Ha Thach
2021-08-17 17:29:13 +07:00
committed by GitHub
parent 7cbb11a86c 9b869463dd
commit 0411810bc0
1 changed files with 19 additions and 4 deletions
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23
src/device/usbd.c
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@@ -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: