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update cdc edpt read

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This commit is contained in:
hathach 2020-09-09 16:25:31 +07:00
parent 8b9893cada
commit 33f0a18523
2 changed files with 7 additions and 7 deletions
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12
src/class/cdc/cdc_device.c
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@ -77,15 +77,13 @@ static void _prep_out_transaction (uint8_t itf)
{
cdcd_interface_t* p_cdc = &_cdcd_itf[itf];
// Prepare for incoming data but only allow what we can store in the ring buffer.
uint16_t const available = tu_fifo_remaining(&p_cdc->rx_ff);
TU_VERIFY( available >= sizeof(p_cdc->epout_buf), );
// claim endpoint
TU_VERIFY( usbd_edpt_claim(TUD_OPT_RHPORT, p_cdc->ep_out), );
// Prepare for incoming data but only allow what we can store in the ring buffer.
uint16_t max_read = tu_fifo_remaining(&p_cdc->rx_ff);
if ( max_read >= sizeof(p_cdc->epout_buf) )
{
usbd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_out, p_cdc->epout_buf, sizeof(p_cdc->epout_buf));
}
usbd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_out, p_cdc->epout_buf, sizeof(p_cdc->epout_buf));
}
//--------------------------------------------------------------------+

2
src/device/usbd.c
View File

@ -1162,7 +1162,9 @@ bool usbd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
return true;
}else
{
// DCD error, mark endpoint as ready to allow next transfer
_usbd_dev.ep_status[epnum][dir].busy = false;
_usbd_dev.ep_status[epnum][dir].claimed = 0;
TU_LOG2("failed\r\n");
TU_BREAKPOINT();
return false;