diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/st/stm32h7/dcd_stm32h7.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/portable/st/stm32h7/dcd_stm32h7.c b/src/portable/st/stm32h7/dcd_stm32h7.c index 4aed4b5ae..e12f28fbc 100644 --- a/src/portable/st/stm32h7/dcd_stm32h7.c +++ b/src/portable/st/stm32h7/dcd_stm32h7.c @@ -256,7 +256,7 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t dev->DIEPEMPMSK |= (1 << epnum); } else { // Each complete packet for OUT xfers triggers XFRC. - out_ep[epnum].DOEPTSIZ = (1 << USB_OTG_DOEPTSIZ_PKTCNT_Pos) | \ + out_ep[epnum].DOEPTSIZ |= (1 << USB_OTG_DOEPTSIZ_PKTCNT_Pos) | \ ((xfer->max_size & USB_OTG_DOEPTSIZ_XFRSIZ_Msk) << USB_OTG_DOEPTSIZ_XFRSIZ_Pos); out_ep[epnum].DOEPCTL |= USB_OTG_DOEPCTL_EPENA | USB_OTG_DOEPCTL_CNAK; } @@ -410,6 +410,7 @@ static void read_rx_fifo(USB_OTG_OUTEndpointTypeDef * out_ep) { case 0x06: // Setup packet recvd { uint8_t setup_left = ((out_ep[epnum].DOEPTSIZ & USB_OTG_DOEPTSIZ_STUPCNT_Msk) >> USB_OTG_DOEPTSIZ_STUPCNT_Pos); + // We can receive up to three setup packets in succession, but // only the last one is valid. _setup_packet[4 - 2*setup_left] = (* rx_fifo); @@ -451,7 +452,7 @@ static void handle_epout_ints(USB_OTG_DeviceTypeDef * dev, USB_OTG_OUTEndpointTy dcd_event_xfer_complete(0, n, xfer->queued_len, XFER_RESULT_SUCCESS, true); } else { // Schedule another packet to be received. - out_ep[n].DOEPTSIZ = (1 << USB_OTG_DOEPTSIZ_PKTCNT_Pos) | \ + out_ep[n].DOEPTSIZ |= (1 << USB_OTG_DOEPTSIZ_PKTCNT_Pos) | \ ((xfer->max_size & USB_OTG_DOEPTSIZ_XFRSIZ_Msk) << USB_OTG_DOEPTSIZ_XFRSIZ_Pos); out_ep[n].DOEPCTL |= USB_OTG_DOEPCTL_EPENA | USB_OTG_DOEPCTL_CNAK; } |