implement multiple interfaces support
This commit is contained in:
98
examples/device/cdc_dual_ports/src/main.c
Normal file
98
examples/device/cdc_dual_ports/src/main.c
Normal file
@@ -0,0 +1,98 @@
|
||||
/*
|
||||
* The MIT License (MIT)
|
||||
*
|
||||
* Copyright (c) 2019 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#include "bsp/board.h"
|
||||
#include "tusb.h"
|
||||
#include "usb_descriptors.h"
|
||||
|
||||
//------------- prototypes -------------//
|
||||
static void cdc_task(void);
|
||||
|
||||
/*------------- MAIN -------------*/
|
||||
int main(void)
|
||||
{
|
||||
board_init();
|
||||
|
||||
tusb_init();
|
||||
|
||||
while (1)
|
||||
{
|
||||
tud_task(); // tinyusb device task
|
||||
cdc_task();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void echo_all(uint8_t itf, uint8_t buf[], uint32_t count)
|
||||
{
|
||||
for(uint32_t i=0; i<count; i++)
|
||||
{
|
||||
if (itf == 0)
|
||||
{
|
||||
// echo back 1st port as lower case
|
||||
if (isupper(buf[i])) buf[i] += 'a' - 'A';
|
||||
}
|
||||
else
|
||||
{
|
||||
// echo back additional ports as upper case
|
||||
if (islower(buf[i])) buf[i] -= 'a' - 'A';
|
||||
}
|
||||
|
||||
tud_cdc_n_write_char(itf, buf[i]);
|
||||
|
||||
if ( buf[i] == '\r' ) tud_cdc_n_write_char(itf, '\n');
|
||||
}
|
||||
tud_cdc_n_write_flush(itf);
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// USB CDC
|
||||
//--------------------------------------------------------------------+
|
||||
static void cdc_task(void)
|
||||
{
|
||||
uint8_t itf;
|
||||
|
||||
for (itf = 0; itf < CFG_TUD_CDC; itf++)
|
||||
{
|
||||
if ( tud_cdc_n_connected(itf) )
|
||||
{
|
||||
if ( tud_cdc_n_available(itf) )
|
||||
{
|
||||
uint8_t buf[64];
|
||||
|
||||
uint32_t count = tud_cdc_n_read(itf, buf, sizeof(buf));
|
||||
|
||||
// echo back to cdc
|
||||
echo_all(itf, buf, count);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user