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Merge pull request #378 from kasjer/kasjer/synopsys-txfe-interrup-loop 

synopsys: Reduce interrupt time for IN ZLP
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Ha Thach 2020-04-25 17:52:46 +07:00 committed by GitHub
parent c59fa77427 b949ae596f
commit f1ecda392f
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1 changed files with 4 additions and 1 deletions
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5
src/portable/st/synopsys/dcd_synopsys.c
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@ -372,7 +372,10 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
in_ep[epnum].DIEPTSIZ = (num_packets << USB_OTG_DIEPTSIZ_PKTCNT_Pos) | \
((total_bytes & USB_OTG_DIEPTSIZ_XFRSIZ_Msk) << USB_OTG_DIEPTSIZ_XFRSIZ_Pos);
in_ep[epnum].DIEPCTL |= USB_OTG_DIEPCTL_EPENA | USB_OTG_DIEPCTL_CNAK;
dev->DIEPEMPMSK |= (1 << epnum);
// Enable fifo empty interrupt only if there are something to put in the fifo.
if(total_bytes != 0) {
dev->DIEPEMPMSK |= (1 << epnum);
}
} else {
// Each complete packet for OUT xfers triggers XFRC.
out_ep[epnum].DOEPTSIZ |= (1 << USB_OTG_DOEPTSIZ_PKTCNT_Pos) | \