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minor clean up

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hathach 2021-04-15 12:09:12 +07:00
parent ad11481dd1
commit 3c84776e0a
1 changed files with 6 additions and 6 deletions
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12
src/portable/st/synopsys/dcd_synopsys.c
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@ -1007,16 +1007,16 @@ static void handle_epin_ints(uint8_t rhport, USB_OTG_DeviceTypeDef * dev, USB_OT
uint16_t remaining_packets = (in_ep[n].DIEPTSIZ & USB_OTG_DIEPTSIZ_PKTCNT_Msk) >> USB_OTG_DIEPTSIZ_PKTCNT_Pos;
// Process every single packet (only whole packets can be written to fifo)
for(uint16_t i = 0; i < remaining_packets; i++){
volatile uint16_t remaining_bytes = (in_ep[n].DIEPTSIZ & USB_OTG_DIEPTSIZ_XFRSIZ_Msk) >> USB_OTG_DIEPTSIZ_XFRSIZ_Pos;
for(uint16_t i = 0; i < remaining_packets; i++)
{
uint16_t const remaining_bytes = (in_ep[n].DIEPTSIZ & USB_OTG_DIEPTSIZ_XFRSIZ_Msk) >> USB_OTG_DIEPTSIZ_XFRSIZ_Pos;
// Packet can not be larger than ep max size
uint16_t packet_size = tu_min16(remaining_bytes, xfer->max_size);
uint16_t const packet_size = tu_min16(remaining_bytes, xfer->max_size);
// It's only possible to write full packets into FIFO. Therefore DTXFSTS register of current
// EP has to be checked if the buffer can take another WHOLE packet
if(packet_size > ((in_ep[n].DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV_Msk) << 2)){
break;
}
if(packet_size > ((in_ep[n].DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV_Msk) << 2)) break;
// Push packet to Tx-FIFO
if (xfer->ff)