132 lines
4.2 KiB
C
132 lines
4.2 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2022, Ha Thach (tinyusb.org)
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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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* This file is part of the TinyUSB stack.
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*/
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#include "tusb.h"
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#include "bsp/board_api.h"
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#ifdef ESP_PLATFORM
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#define CDC_STACK_SZIE 2048
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#else
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#define CDC_STACK_SZIE (3*configMINIMAL_STACK_SIZE/2)
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#endif
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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#if configSUPPORT_STATIC_ALLOCATION
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StackType_t cdc_stack[CDC_STACK_SZIE];
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StaticTask_t cdc_taskdef;
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#endif
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static void cdc_app_task(void* param);
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void cdc_app_init(void) {
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#if configSUPPORT_STATIC_ALLOCATION
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xTaskCreateStatic(cdc_app_task, "cdc", CDC_STACK_SZIE, NULL, configMAX_PRIORITIES-2, cdc_stack, &cdc_taskdef);
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#else
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xTaskCreate(cdc_app_task, "cdc", CDC_STACK_SZIE, NULL, configMAX_PRIORITIES-2, NULL);
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#endif
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}
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// helper
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static size_t get_console_inputs(uint8_t *buf, size_t bufsize) {
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size_t count = 0;
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while (count < bufsize) {
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int ch = board_getchar();
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if (ch <= 0) break;
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buf[count] = (uint8_t) ch;
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count++;
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}
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return count;
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}
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static void cdc_app_task(void* param) {
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(void) param;
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uint8_t buf[64 + 1]; // +1 for extra null character
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uint32_t const bufsize = sizeof(buf) - 1;
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while (1) {
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uint32_t count = get_console_inputs(buf, bufsize);
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buf[count] = 0;
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if (count) {
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// loop over all mounted interfaces
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for (uint8_t idx = 0; idx < CFG_TUH_CDC; idx++) {
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if (tuh_cdc_mounted(idx)) {
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// console --> cdc interfaces
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tuh_cdc_write(idx, buf, count);
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tuh_cdc_write_flush(idx);
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}
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}
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}
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vTaskDelay(1);
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}
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}
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//--------------------------------------------------------------------+
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// TinyUSB Callbacks
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//--------------------------------------------------------------------+
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// Invoked when received new data
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void tuh_cdc_rx_cb(uint8_t idx) {
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uint8_t buf[64 + 1]; // +1 for extra null character
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uint32_t const bufsize = sizeof(buf) - 1;
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// forward cdc interfaces -> console
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uint32_t count = tuh_cdc_read(idx, buf, bufsize);
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buf[count] = 0;
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printf("%s", (char *) buf);
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}
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void tuh_cdc_mount_cb(uint8_t idx) {
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tuh_itf_info_t itf_info = { 0 };
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tuh_cdc_itf_get_info(idx, &itf_info);
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printf("CDC Interface is mounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.desc.bInterfaceNumber);
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#ifdef CFG_TUH_CDC_LINE_CODING_ON_ENUM
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// CFG_TUH_CDC_LINE_CODING_ON_ENUM must be defined for line coding is set by tinyusb in enumeration
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// otherwise you need to call tuh_cdc_set_line_coding() first
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cdc_line_coding_t line_coding = { 0 };
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if (tuh_cdc_get_local_line_coding(idx, &line_coding)) {
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printf(" Baudrate: %" PRIu32 ", Stop Bits : %u\r\n", line_coding.bit_rate, line_coding.stop_bits);
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printf(" Parity : %u, Data Width: %u\r\n", line_coding.parity, line_coding.data_bits);
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}
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#endif
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}
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void tuh_cdc_umount_cb(uint8_t idx) {
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tuh_itf_info_t itf_info = { 0 };
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tuh_cdc_itf_get_info(idx, &itf_info);
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printf("CDC Interface is unmounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.desc.bInterfaceNumber);
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}
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