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Merge pull request #476 from kasjer/kasjer/fix-synopsys-fix-iso-frame-bit

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Fix synopsys odd/even frame bit for IN ISO endpoints
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Ha Thach 2020-08-05 22:36:05 +07:00 committed by GitHub
commit 6f3378f71d
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1 changed files with 7 additions and 0 deletions
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7
src/portable/st/synopsys/dcd_synopsys.c
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@ -365,6 +365,13 @@ static void edpt_schedule_packets(uint8_t rhport, uint8_t const epnum, uint8_t c
((total_bytes << USB_OTG_DIEPTSIZ_XFRSIZ_Pos) & USB_OTG_DIEPTSIZ_XFRSIZ_Msk);
in_ep[epnum].DIEPCTL |= USB_OTG_DIEPCTL_EPENA | USB_OTG_DIEPCTL_CNAK;
// For ISO endpoint set correct odd/even bit for next frame.
if ((in_ep[epnum].DIEPCTL & USB_OTG_DIEPCTL_EPTYP) == USB_OTG_DIEPCTL_EPTYP_0)
{
// Take odd/even bit from frame counter.
uint32_t const odd_frame_now = (dev->DSTS & (1u << USB_OTG_DSTS_FNSOF_Pos));
in_ep[epnum].DIEPCTL |= (odd_frame_now ? USB_OTG_DIEPCTL_SD0PID_SEVNFRM_Msk : USB_OTG_DIEPCTL_SODDFRM_Msk);
}
// Enable fifo empty interrupt only if there are something to put in the fifo.
if(total_bytes != 0) {
dev->DIEPEMPMSK |= (1 << epnum);