diff options
| author | Maxime Vincent <[email protected]> | 2025-04-10 10:29:45 +0200 |
|---|---|---|
| committer | Maxime Vincent <[email protected]> | 2025-04-15 09:01:39 +0200 |
| commit | 384e191fdc9346eb8718f1f3e50f4697f161cc88 (patch) | |
| tree | 876e81e02dda82f7f47a30de43895e650fb75087 | |
| parent | bfe08176e516fede93dcd0bb3d43b4044fea25e4 (diff) | |
dwc2/host: immediately retry IN token for bInterval=1
Signed-off-by: Maxime Vincent <[email protected]>
| -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 |