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/*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bsp/board_api.h"
#include "tusb.h"
//--------------------------------------------------------------------+
// STATIC GLOBALS DECLARATION
//--------------------------------------------------------------------+
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF PROTOTYPES
//--------------------------------------------------------------------+
void led_blinking_task(void);
void midi_host_rx_task(void);
/*------------- MAIN -------------*/
int main(void) {
board_init();
printf("TinyUSB Host MIDI Example\r\n");
// init host stack on configured roothub port
tusb_rhport_init_t host_init = {
.role = TUSB_ROLE_HOST,
.speed = TUSB_SPEED_AUTO
};
tusb_init(BOARD_TUH_RHPORT, &host_init);
while (1) {
tuh_task();
led_blinking_task();
midi_host_rx_task();
}
}
//--------------------------------------------------------------------+
// Blinking Task
//--------------------------------------------------------------------+
void led_blinking_task(void) {
const uint32_t interval_ms = 1000;
static uint32_t start_ms = 0;
static bool led_state = false;
// Blink every interval ms
if (tusb_time_millis_api() - start_ms < interval_ms) return;// not enough time
start_ms += interval_ms;
board_led_write(led_state);
led_state = 1 - led_state;// toggle
}
//--------------------------------------------------------------------+
// MIDI host receive task
//--------------------------------------------------------------------+
void midi_host_rx_task(void) {
// nothing to do, we just print out received data in callback
}
//--------------------------------------------------------------------+
// TinyUSB Callbacks
//--------------------------------------------------------------------+
// Invoked when device with MIDI interface is mounted.
void tuh_midi_mount_cb(uint8_t idx, const tuh_midi_mount_cb_t* mount_cb_data) {
printf("MIDI Interface Index = %u, Address = %u, Number of RX cables = %u, Number of TX cables = %u\r\n",
idx, mount_cb_data->daddr, mount_cb_data->rx_cable_count, mount_cb_data->tx_cable_count);
}
// Invoked when device with hid interface is un-mounted
void tuh_midi_umount_cb(uint8_t idx) {
printf("MIDI Interface Index = %u is unmounted\r\n", idx);
}
void tuh_midi_rx_cb(uint8_t idx, uint32_t xferred_bytes) {
if (xferred_bytes == 0) {
return;
}
uint8_t buffer[48];
uint8_t cable_num = 0;
uint32_t bytes_read = tuh_midi_stream_read(idx, &cable_num, buffer, sizeof(buffer));
printf("Cable %u rx: ", cable_num);
for (uint32_t i = 0; i < bytes_read; i++) {
printf("%02X ", buffer[i]);
}
printf("\r\n");
}
void tuh_midi_tx_cb(uint8_t idx, uint32_t xferred_bytes) {
(void) idx;
(void) xferred_bytes;
}
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