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/*
* The MIT License (MIT)
*
* Copyright (c) 2022, Ha Thach (tinyusb.org)
*
* 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.
*
* This file is part of the TinyUSB stack.
*/
#include "tusb.h"
#include "bsp/board.h"
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM DECLARATION
//--------------------------------------------------------------------+
//------------- IMPLEMENTATION -------------//
size_t get_console_inputs(uint8_t* buf, size_t bufsize)
{
size_t count = 0;
while (count < bufsize)
{
int ch = board_getchar();
if ( ch <= 0 ) break;
buf[count] = (uint8_t) ch;
count++;
}
return count;
}
void cdc_app_task(void)
{
uint8_t buf[64+1]; // +1 for extra null character
uint32_t const bufsize = sizeof(buf)-1;
uint32_t count = get_console_inputs(buf, bufsize);
buf[count] = 0;
// loop over all mounted interfaces
for(uint8_t idx=0; idx<CFG_TUH_CDC; idx++)
{
if ( tuh_cdc_mounted(idx) )
{
// console --> cdc interfaces
if (count)
{
tuh_cdc_write(idx, buf, count);
tuh_cdc_write_flush(idx);
}
}
}
}
// Invoked when received new data
void tuh_cdc_rx_cb(uint8_t idx)
{
uint8_t buf[64+1]; // +1 for extra null character
uint32_t const bufsize = sizeof(buf)-1;
// forward cdc interfaces -> console
uint32_t count = tuh_cdc_read(idx, buf, bufsize);
buf[count] = 0;
printf((char*) buf);
}
void tuh_cdc_mount_cb(uint8_t idx)
{
tuh_cdc_itf_info_t itf_info = { 0 };
tuh_cdc_itf_get_info(idx, &itf_info);
printf("CDC Interface is mounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.bInterfaceNumber);
#ifdef CFG_TUH_CDC_LINE_CODING_ON_ENUM
// CFG_TUH_CDC_LINE_CODING_ON_ENUM must be defined for line coding is set by tinyusb in enumeration
// otherwise you need to call tuh_cdc_set_line_coding() first
cdc_line_coding_t line_coding = { 0 };
if ( tuh_cdc_get_local_line_coding(idx, &line_coding) )
{
printf(" Baudrate: %lu, Stop Bits : %u\r\n", line_coding.bit_rate, line_coding.stop_bits);
printf(" Parity : %u, Data Width: %u\r\n", line_coding.parity , line_coding.data_bits);
}
#endif
}
void tuh_cdc_umount_cb(uint8_t idx)
{
tuh_cdc_itf_info_t itf_info = { 0 };
tuh_cdc_itf_get_info(idx, &itf_info);
printf("CDC Interface is unmounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.bInterfaceNumber);
}
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