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Fix receiving of short packet data (ep out)

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Jan Dümpelmann
2020-06-30 12:55:39 +02:00
parent 05996aee64
commit 9e35ef73f7
1 changed files with 6 additions and 0 deletions
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6
src/portable/st/synopsys/dcd_synopsys.c
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@@ -576,6 +576,12 @@ static void handle_rxflvl_ints(USB_OTG_OUTEndpointTypeDef * out_ep) {
// Increment pointer to xfer data // Increment pointer to xfer data
xfer->buffer += bcnt; xfer->buffer += bcnt;
// Truncate transfer length in case of short packet
if(bcnt < xfer->max_size){
xfer->total_len -= (out_ep[epnum].DOEPTSIZ & USB_OTG_DOEPTSIZ_XFRSIZ_Msk) >> USB_OTG_DOEPTSIZ_XFRSIZ_Pos;
if(epnum == 0) xfer->total_len -= ep0_pending[TUSB_DIR_OUT];
}
} }
break; break;
case 0x03: // Out packet done (Interrupt) case 0x03: // Out packet done (Interrupt)