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Call One time tu_fifo_write_n on cdcd_xfer_cb

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Signed-off-by: HiFiPhile <admin@hifiphile.com>
This commit is contained in:
HiFiPhile 2021-03-10 10:19:45 +01:00
parent 0374e08550
commit 7fc99a9e11
1 changed files with 10 additions and 10 deletions
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20
src/class/cdc/cdc_device.c
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@ -432,25 +432,25 @@ bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_
// Received new data // Received new data
if ( ep_addr == p_cdc->ep_out ) if ( ep_addr == p_cdc->ep_out )
{ {
tu_fifo_write_n(&p_cdc->rx_ff, &p_cdc->epout_buf, xferred_bytes);
// TODO search for wanted char first for better performance // TODO search for wanted char first for better performance
for(uint32_t i=0; i<xferred_bytes; i++) if (tud_cdc_rx_wanted_cb && ( ((signed char) p_cdc->wanted_char) != -1)) {
{
tu_fifo_write(&p_cdc->rx_ff, &p_cdc->epout_buf[i]);
// Check for wanted char and invoke callback if needed // Check for wanted char and invoke callback if needed
if ( tud_cdc_rx_wanted_cb && ( ((signed char) p_cdc->wanted_char) != -1 ) && ( p_cdc->wanted_char == p_cdc->epout_buf[i] ) ) for (uint32_t i=0; i<xferred_bytes; i++) {
{ if ( p_cdc->wanted_char == p_cdc->epout_buf[i] ) {
tud_cdc_rx_wanted_cb(itf, p_cdc->wanted_char); tud_cdc_rx_wanted_cb(itf, p_cdc->wanted_char);
}
} }
} }
// invoke receive callback (if there is still data) // invoke receive callback (if there is still data)
if (tud_cdc_rx_cb && tu_fifo_count(&p_cdc->rx_ff) ) tud_cdc_rx_cb(itf); if (tud_cdc_rx_cb && tu_fifo_count(&p_cdc->rx_ff) ) tud_cdc_rx_cb(itf);
// prepare for OUT transaction // prepare for OUT transaction
_prep_out_transaction(p_cdc); _prep_out_transaction(p_cdc);
} }
// Data sent to host, we continue to fetch from tx fifo to send. // Data sent to host, we continue to fetch from tx fifo to send.
// Note: This will cause incorrect baudrate set in line coding. // Note: This will cause incorrect baudrate set in line coding.
// Though maybe the baudrate is not really important !!! // Though maybe the baudrate is not really important !!!