diff options
Diffstat (limited to 'src/class/cdc/cdc_device.c')
| -rw-r--r-- | src/class/cdc/cdc_device.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c index f5853fddb..cf2ec64c8 100644 --- a/src/class/cdc/cdc_device.c +++ b/src/class/cdc/cdc_device.c @@ -31,6 +31,15 @@ #include "cdc_device.h" #include "device/usbd_pvt.h" +#if defined(TU_HAS_NO_ATTR_WEAK) +static void (*const MAKE_WEAK_FUNC(tud_cdc_rx_cb))(uint8_t) = TUD_CDC_RX_CB; +static void (*const MAKE_WEAK_FUNC(tud_cdc_rx_wanted_cb))(uint8_t, char) = TUD_CDC_RX_WANTED_CB; +static void (*const MAKE_WEAK_FUNC(tud_cdc_tx_complete_cb))(uint8_t) = TUD_CDC_TX_COMPLETE_CB; +static void (*const MAKE_WEAK_FUNC(tud_cdc_line_state_cb))(uint8_t, bool, bool) = TUD_CDC_LINE_STATE_CB; +static void (*const MAKE_WEAK_FUNC(tud_cdc_line_coding_cb))(uint8_t, cdc_line_coding_t const*) = TUD_CDC_LINE_CODING_CB; +static void (*const MAKE_WEAK_FUNC(tud_cdc_send_break_cb))(uint8_t, uint16_t) = TUD_CDC_SEND_BREAK_CB; +#endif + //--------------------------------------------------------------------+ // MACRO CONSTANT TYPEDEF //--------------------------------------------------------------------+ @@ -359,7 +368,7 @@ bool cdcd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t } else if ( stage == CONTROL_STAGE_ACK) { - if ( tud_cdc_line_coding_cb ) tud_cdc_line_coding_cb(itf, &p_cdc->line_coding); + if ( MAKE_WEAK_FUNC(tud_cdc_line_coding_cb) ) MAKE_WEAK_FUNC(tud_cdc_line_coding_cb)(itf, &p_cdc->line_coding); } break; @@ -394,7 +403,7 @@ bool cdcd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t TU_LOG2(" Set Control Line State: DTR = %d, RTS = %d\r\n", dtr, rts); // Invoke callback - if ( tud_cdc_line_state_cb ) tud_cdc_line_state_cb(itf, dtr, rts); + if ( MAKE_WEAK_FUNC(tud_cdc_line_state_cb) ) MAKE_WEAK_FUNC(tud_cdc_line_state_cb)(itf, dtr, rts); } break; case CDC_REQUEST_SEND_BREAK: @@ -405,7 +414,7 @@ bool cdcd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t else if (stage == CONTROL_STAGE_ACK) { TU_LOG2(" Send Break\r\n"); - if ( tud_cdc_send_break_cb ) tud_cdc_send_break_cb(itf, request->wValue); + if ( MAKE_WEAK_FUNC(tud_cdc_send_break_cb) ) MAKE_WEAK_FUNC(tud_cdc_send_break_cb)(itf, request->wValue); } break; @@ -436,19 +445,19 @@ bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_ tu_fifo_write_n(&p_cdc->rx_ff, &p_cdc->epout_buf, xferred_bytes); // Check for wanted char and invoke callback if needed - if ( tud_cdc_rx_wanted_cb && (((signed char) p_cdc->wanted_char) != -1) ) + if ( MAKE_WEAK_FUNC(tud_cdc_rx_wanted_cb) && (((signed char) p_cdc->wanted_char) != -1) ) { for ( uint32_t i = 0; i < xferred_bytes; i++ ) { if ( (p_cdc->wanted_char == p_cdc->epout_buf[i]) && !tu_fifo_empty(&p_cdc->rx_ff) ) { - tud_cdc_rx_wanted_cb(itf, p_cdc->wanted_char); + MAKE_WEAK_FUNC(tud_cdc_rx_wanted_cb)(itf, p_cdc->wanted_char); } } } // invoke receive callback (if there is still data) - if (tud_cdc_rx_cb && !tu_fifo_empty(&p_cdc->rx_ff) ) tud_cdc_rx_cb(itf); + if (MAKE_WEAK_FUNC(tud_cdc_rx_cb) && !tu_fifo_empty(&p_cdc->rx_ff) ) MAKE_WEAK_FUNC(tud_cdc_rx_cb)(itf); // prepare for OUT transaction _prep_out_transaction(p_cdc); @@ -460,7 +469,7 @@ bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_ 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 ( MAKE_WEAK_FUNC(tud_cdc_tx_complete_cb) ) MAKE_WEAK_FUNC(tud_cdc_tx_complete_cb)(itf); if ( 0 == tud_cdc_n_write_flush(itf) ) { |