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