diff options
| author | hathach <[email protected]> | 2020-11-02 16:50:46 +0700 |
|---|---|---|
| committer | hathach <[email protected]> | 2020-11-02 16:50:46 +0700 |
| commit | 6fcd540cb68483b1b1b25344a1a5e4560c77e276 (patch) | |
| tree | 950ffb02fff076b7523da2486c55a423f7bca98e /src/class | |
| parent | 67ac40b98d217dde82090bf10a0cf55af5d1c44b (diff) | |
enable cdc auto flush on write()
if there is enough data in the fifo
Diffstat (limited to 'src/class')
| -rw-r--r-- | src/class/cdc/cdc_device.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c index e39adc5fa..e54b7d260 100644 --- a/src/class/cdc/cdc_device.c +++ b/src/class/cdc/cdc_device.c @@ -34,6 +34,11 @@ //--------------------------------------------------------------------+ // MACRO CONSTANT TYPEDEF //--------------------------------------------------------------------+ +enum +{ + BULK_PACKET_SIZE = (TUD_OPT_HIGH_SPEED ? 512 : 64) +}; + typedef struct { uint8_t itf_num; @@ -160,13 +165,11 @@ uint32_t tud_cdc_n_write(uint8_t itf, void const* buffer, uint32_t bufsize) cdcd_interface_t* p_cdc = &_cdcd_itf[itf]; uint16_t ret = tu_fifo_write_n(&p_cdc->tx_ff, buffer, bufsize); -#if 0 // TODO issue with circuitpython's REPL - // flush if queue more than endpoint size - if ( tu_fifo_count(&p_cdc->tx_ff) >= CFG_TUD_CDC_EP_BUFSIZE ) + // flush if queue more than packet size + if ( tu_fifo_count(&p_cdc->tx_ff) >= BULK_PACKET_SIZE ) { tud_cdc_n_write_flush(itf); } -#endif return ret; } @@ -250,8 +253,8 @@ void cdcd_reset(uint8_t rhport) uint16_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len) { // Only support ACM subclass - TU_VERIFY ( TUSB_CLASS_CDC == itf_desc->bInterfaceClass && - CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass, 0); + TU_VERIFY( TUSB_CLASS_CDC == itf_desc->bInterfaceClass && + CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass, 0); // Note: 0xFF can be used with RNDIS TU_VERIFY(tu_within(CDC_COMM_PROTOCOL_NONE, itf_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA), 0); @@ -446,9 +449,8 @@ bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_ if ( 0 == tud_cdc_n_write_flush(itf) ) { // If 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 ( !tu_fifo_count(&p_cdc->tx_ff) && xferred_bytes && (0 == (xferred_bytes % CFG_TUD_CDC_EP_BUFSIZE)) ) + // xferred_bytes is multiple of EP Packet size and not zero + if ( !tu_fifo_count(&p_cdc->tx_ff) && xferred_bytes && (0 == (xferred_bytes & (BULK_PACKET_SIZE-1))) ) { if ( usbd_edpt_claim(rhport, p_cdc->ep_in) ) { |