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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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "bsp/board.h"
#include "tusb.h"
#include "class/midi/midi_host.h"
#if CFG_TUH_MIDI
//--------------------------------------------------------------------+
// STATIC GLOBALS DECLARATION
//--------------------------------------------------------------------+
static uint8_t midi_dev_addr = 0;
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF PROTYPES
//--------------------------------------------------------------------+
void led_blinking_task(void);
void midi_host_rx_task(void);
/*------------- MAIN -------------*/
int main(void)
{
board_init();
printf("TinyUSB Host MIDI Example\r\n");
tusb_init();
while (1)
{
tuh_task();
led_blinking_task();
midi_host_rx_task();
}
return 0;
}
#endif
//--------------------------------------------------------------------+
// 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 ( board_millis() - 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)
{
// device must be attached and have at least one endpoint ready to receive a message
if (!midi_dev_addr || !tuh_midi_configured(midi_dev_addr))
{
return;
}
if (tuh_midih_get_num_rx_cables(midi_dev_addr) < 1)
{
return;
}
tuh_midi_read_poll(midi_dev_addr);
}
//--------------------------------------------------------------------+
// TinyUSB Callbacks
//--------------------------------------------------------------------+
// Invoked when device with hid interface is mounted
// Report descriptor is also available for use. tuh_hid_parse_report_descriptor()
// can be used to parse common/simple enough descriptor.
// Note: if report descriptor length > CFG_TUH_ENUMERATION_BUFSIZE, it will be skipped
// therefore report_desc = NULL, desc_len = 0
void tuh_midi_mount_cb(uint8_t dev_addr, uint8_t in_ep, uint8_t out_ep, uint8_t num_cables_rx, uint16_t num_cables_tx)
{
(void ) in_ep;
(void ) out_ep;
(void ) num_cables_rx;
(void ) num_cables_tx;
TU_LOG1("MIDI device address = %u, IN endpoint %u has %u cables, OUT endpoint %u has %u cables\r\n",
dev_addr, in_ep & 0xf, num_cables_rx, out_ep & 0xf, num_cables_tx);
midi_dev_addr = dev_addr;
}
// Invoked when device with hid interface is un-mounted
void tuh_midi_umount_cb(uint8_t dev_addr, uint8_t instance)
{
(void ) dev_addr;
(void ) instance;
TU_LOG1("MIDI device address = %d, instance = %d is unmounted\r\n", dev_addr, instance);
midi_dev_addr = 0;
}
void tuh_midi_rx_cb(uint8_t dev_addr, uint32_t num_packets)
{
if (midi_dev_addr != dev_addr)
{
return;
}
if(num_packets == 0)
{
return;
}
uint8_t cable_num;
uint8_t buffer[48];
uint32_t bytes_read = tuh_midi_stream_read(dev_addr, &cable_num, buffer, sizeof(buffer));
(void ) bytes_read;
TU_LOG1("Read bytes %lu cable %u", bytes_read, cable_num);
TU_LOG1_MEM(buffer, bytes_read, 2);
}
void tuh_midi_tx_cb(uint8_t dev_addr)
{
(void ) dev_addr;
}
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