diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/synopsys/dwc2/hcd_dwc2.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/portable/synopsys/dwc2/hcd_dwc2.c b/src/portable/synopsys/dwc2/hcd_dwc2.c index 33c0edba1..6e2737afd 100644 --- a/src/portable/synopsys/dwc2/hcd_dwc2.c +++ b/src/portable/synopsys/dwc2/hcd_dwc2.c @@ -736,6 +736,14 @@ static void channel_xfer_in_retry(dwc2_regs_t* dwc2, uint8_t ch_id, uint32_t hci } } + // immediately retry if bInterval is 1 - otherwise we'd waste a microframe before retrying + if ((hcint & HCINT_HALTED) && (edpt->uframe_interval == 1)) { + edpt->hcchar_bm.odd_frame = 1 - (dwc2->hfnum & 1); // transfer on next frame + channel->hcchar = (edpt->hcchar & ~HCCHAR_CHENA); + channel_send_in_token(dwc2, channel); + return; + } + // for periodic, de-allocate channel, enable SOF set frame counter for later transfer const dwc2_channel_tsize_t hctsiz = {.value = channel->hctsiz}; edpt->next_pid = hctsiz.pid; // save PID |