diff options
Diffstat (limited to 'src/class/cdc/cdc_device.c')
| -rw-r--r-- | src/class/cdc/cdc_device.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c index 89326f71d..b4ebfc92e 100644 --- a/src/class/cdc/cdc_device.c +++ b/src/class/cdc/cdc_device.c @@ -164,7 +164,7 @@ uint32_t tud_cdc_n_write_flush (uint8_t itf) // skip if previous transfer not complete yet TU_VERIFY( !usbd_edpt_busy(TUD_OPT_RHPORT, p_cdc->ep_in), 0 ); - uint16_t count = tu_fifo_read_n(&_cdcd_itf[itf].tx_ff, p_cdc->epin_buf, sizeof(p_cdc->epin_buf)); + uint16_t count = tu_fifo_read_n(&p_cdc->tx_ff, p_cdc->epin_buf, sizeof(p_cdc->epin_buf)); if ( count ) { TU_VERIFY( tud_cdc_n_connected(itf), 0 ); // fifo is empty if not connected @@ -376,7 +376,6 @@ bool cdcd_control_request(uint8_t rhport, tusb_control_request_t const * request bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes) { - (void) rhport; (void) result; uint8_t itf; @@ -393,6 +392,7 @@ bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_ // Received new data if ( ep_addr == p_cdc->ep_out ) { + // TODO search for wanted char first for better performance for(uint32_t i=0; i<xferred_bytes; i++) { tu_fifo_write(&p_cdc->rx_ff, &p_cdc->epout_buf[i]); @@ -416,13 +416,17 @@ bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_ // Though maybe the baudrate is not really important !!! if ( ep_addr == p_cdc->ep_in ) { + // invoke transmit callback to possibly refill tx fifo + if ( tud_cdc_tx_complete_cb ) tud_cdc_tx_complete_cb(itf); + if ( 0 == tud_cdc_n_write_flush(itf) ) { // There is no data left, a ZLP should be sent if // xferred_bytes is multiple of EP size and not zero + // FIXME CFG_TUD_CDC_EP_BUFSIZE is not Endpoint packet size if ( xferred_bytes && (0 == (xferred_bytes % CFG_TUD_CDC_EP_BUFSIZE)) ) { - usbd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_in, NULL, 0); + usbd_edpt_xfer(rhport, p_cdc->ep_in, NULL, 0); } } } |