circuitpython/shared/tinyusb/mp_cdc_common.c
Luca Burelli e0784750aa shared/tinyusb: Avoid symbol clash on targets with external TinyUSB.
On targets that provide a reference TinyUSB implementation, like ESP32,
the SDK already defines and implements standard callback functions such
as tud_cdc_line_state_cb(). This causes a symbol clash when enabling
shared implementations like the MicroPython 1200 touch functionality.

To avoid this symbol clash, add an optional macro to allow ports to
use a different function name in the shared implementation.

Signed-off-by: Luca Burelli <l.burelli@arduino.cc>
2023-07-20 23:55:42 +10:00

61 lines
2.1 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2022 Ibrahim Abdelkader <iabdalkader@openmv.io>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/runtime.h"
#include "py/mphal.h"
#include "modmachine.h"
#if MICROPY_HW_USB_CDC_1200BPS_TOUCH && MICROPY_HW_ENABLE_USBDEV
#include "tusb.h"
static mp_sched_node_t mp_bootloader_sched_node;
STATIC void usbd_cdc_run_bootloader_task(mp_sched_node_t *node) {
mp_hal_delay_ms(250);
machine_bootloader(0, NULL);
}
void
#if MICROPY_HW_USB_EXTERNAL_TINYUSB
mp_usbd_line_state_cb
#else
tud_cdc_line_state_cb
#endif
(uint8_t itf, bool dtr, bool rts) {
if (dtr == false && rts == false) {
// Device is disconnected.
cdc_line_coding_t line_coding;
tud_cdc_n_get_line_coding(itf, &line_coding);
if (line_coding.bit_rate == 1200) {
// Delay bootloader jump to allow the USB stack to service endpoints.
mp_sched_schedule_node(&mp_bootloader_sched_node, usbd_cdc_run_bootloader_task);
}
}
}
#endif