andy/tinyUSB
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Retry a few times with transfers in enumeration since device can be unstable when starting up

Browse Source
This commit is contained in:
hathach
2022-11-28 23:22:10 +07:00
parent 5785467016
commit b2a3f33046
3 changed files with 28 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
src/host/usbh.c
View File

@@ -620,9 +620,7 @@ static void _xfer_complete(uint8_t daddr, xfer_result_t result)
.user_data = _ctrl_xfer.user_data
};
usbh_lock();
_ctrl_xfer.stage = CONTROL_STAGE_IDLE;
usbh_unlock();
_set_control_xfer_stage(CONTROL_STAGE_IDLE);
if (xfer_temp.complete_cb)
{
@@ -1182,12 +1180,28 @@ static void enum_full_complete(void);
// process device enumeration
static void process_enumeration(tuh_xfer_t* xfer)
{
// Retry a few times with transfers in enumeration since device can be unstable when starting up
enum {
ATTEMPT_COUNT_MAX = 3,
ATTEMPT_DELAY_MS = 10
};
static uint8_t failed_count = 0;
if (XFER_RESULT_SUCCESS != xfer->result)
{
// stop enumeration, maybe we could retry this
enum_full_complete();
// retry if not reaching max attempt
if ( failed_count < ATTEMPT_COUNT_MAX )
{
failed_count++;
osal_task_delay(ATTEMPT_DELAY_MS); // delay a bit
TU_ASSERT(tuh_control_xfer(xfer), );
}else
{
enum_full_complete();
}
return;
}
failed_count = 0;
uint8_t const daddr = xfer->daddr;
uintptr_t const state = xfer->user_data;