diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/host/usbh.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/host/usbh.c b/src/host/usbh.c index 7cdcbda5e..5423df669 100644 --- a/src/host/usbh.c +++ b/src/host/usbh.c @@ -738,19 +738,27 @@ bool tuh_edpt_abort_xfer(uint8_t daddr, uint8_t ep_addr) { usbh_device_t* dev = get_device(daddr); TU_VERIFY(dev); + TU_LOG_USBH("[%u] Aborted transfer on EP %02X\r\n", daddr, ep_addr); + uint8_t const epnum = tu_edpt_number(ep_addr); uint8_t const dir = tu_edpt_dir(ep_addr); - // skip if not busy - TU_VERIFY(dev->ep_status[epnum][dir].busy); - - bool const ret = hcd_edpt_abort_xfer(dev->rhport, daddr, ep_addr); - if (ret) { - // mark as ready if transfer is aborted + if ( epnum == 0 ) { + // control transfer: only 1 control at a time, check if we are aborting the current one + TU_VERIFY(daddr == _ctrl_xfer.daddr && _ctrl_xfer.stage != CONTROL_STAGE_IDLE); + TU_VERIFY(hcd_edpt_abort_xfer(dev->rhport, daddr, ep_addr)); + // reset control transfer state to idle + _set_control_xfer_stage(CONTROL_STAGE_IDLE); + } else { + // non-control skip if not busy + TU_VERIFY(dev->ep_status[epnum][dir].busy); + TU_VERIFY(hcd_edpt_abort_xfer(dev->rhport, daddr, ep_addr)); + // mark as ready and release endpoint if transfer is aborted dev->ep_status[epnum][dir].busy = false; + usbh_edpt_release(daddr, ep_addr); } - return ret; + return true; } //--------------------------------------------------------------------+ |