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Merge pull request #1535 from robert-hh/samd_xfer_lockup

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samd: Fix a lock-up situation at high traffic.
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Ha Thach 2022-06-28 20:36:04 +07:00 committed by GitHub
commit c7fce32dff
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1 changed files with 4 additions and 4 deletions
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8
src/portable/microchip/samd/dcd_samd.c
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@ -286,14 +286,14 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
{ {
bank->PCKSIZE.bit.MULTI_PACKET_SIZE = total_bytes; bank->PCKSIZE.bit.MULTI_PACKET_SIZE = total_bytes;
bank->PCKSIZE.bit.BYTE_COUNT = 0; bank->PCKSIZE.bit.BYTE_COUNT = 0;
ep->EPSTATUSCLR.reg |= USB_DEVICE_EPSTATUSCLR_BK0RDY; ep->EPSTATUSCLR.reg = USB_DEVICE_EPSTATUSCLR_BK0RDY;
ep->EPINTFLAG.reg |= USB_DEVICE_EPINTFLAG_TRFAIL0; ep->EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_TRFAIL0;
} else } else
{ {
bank->PCKSIZE.bit.MULTI_PACKET_SIZE = 0; bank->PCKSIZE.bit.MULTI_PACKET_SIZE = 0;
bank->PCKSIZE.bit.BYTE_COUNT = total_bytes; bank->PCKSIZE.bit.BYTE_COUNT = total_bytes;
ep->EPSTATUSSET.reg |= USB_DEVICE_EPSTATUSSET_BK1RDY; ep->EPSTATUSSET.reg = USB_DEVICE_EPSTATUSSET_BK1RDY;
ep->EPINTFLAG.reg |= USB_DEVICE_EPINTFLAG_TRFAIL1; ep->EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_TRFAIL1;
} }
return true; return true;