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| 1 | +/* |
| 2 | + * The MIT License (MIT) |
| 3 | + * |
| 4 | + * Copyright (c) 2019 Ha Thach (tinyusb.org) |
| 5 | + * |
| 6 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | + * of this software and associated documentation files (the "Software"), to deal |
| 8 | + * in the Software without restriction, including without limitation the rights |
| 9 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | + * copies of the Software, and to permit persons to whom the Software is |
| 11 | + * furnished to do so, subject to the following conditions: |
| 12 | + * |
| 13 | + * The above copyright notice and this permission notice shall be included in |
| 14 | + * all copies or substantial portions of the Software. |
| 15 | + * |
| 16 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | + * THE SOFTWARE. |
| 23 | + * |
| 24 | + */ |
| 25 | + |
| 26 | +#include <stdio.h> |
| 27 | +#include <stdlib.h> |
| 28 | +#include <string.h> |
| 29 | + |
| 30 | +#include "bsp/board_api.h" |
| 31 | +#include "tusb.h" |
| 32 | + |
| 33 | +//--------------------------------------------------------------------+ |
| 34 | +// STATIC GLOBALS DECLARATION |
| 35 | +//--------------------------------------------------------------------+ |
| 36 | + |
| 37 | +//--------------------------------------------------------------------+ |
| 38 | +// MACRO CONSTANT TYPEDEF PROTOTYPES |
| 39 | +//--------------------------------------------------------------------+ |
| 40 | +void led_blinking_task(void); |
| 41 | +void midi_host_rx_task(void); |
| 42 | + |
| 43 | +/*------------- MAIN -------------*/ |
| 44 | +int main(void) { |
| 45 | + board_init(); |
| 46 | + |
| 47 | + printf("TinyUSB Host MIDI Example\r\n"); |
| 48 | + |
| 49 | + // init host stack on configured roothub port |
| 50 | + tusb_rhport_init_t host_init = { |
| 51 | + .role = TUSB_ROLE_HOST, |
| 52 | + .speed = TUSB_SPEED_AUTO |
| 53 | + }; |
| 54 | + tusb_init(BOARD_TUH_RHPORT, &host_init); |
| 55 | + |
| 56 | + while (1) { |
| 57 | + tuh_task(); |
| 58 | + led_blinking_task(); |
| 59 | + midi_host_rx_task(); |
| 60 | + } |
| 61 | + |
| 62 | + return 0; |
| 63 | +} |
| 64 | + |
| 65 | +//--------------------------------------------------------------------+ |
| 66 | +// Blinking Task |
| 67 | +//--------------------------------------------------------------------+ |
| 68 | +void led_blinking_task(void) { |
| 69 | + const uint32_t interval_ms = 1000; |
| 70 | + static uint32_t start_ms = 0; |
| 71 | + |
| 72 | + static bool led_state = false; |
| 73 | + |
| 74 | + // Blink every interval ms |
| 75 | + if (board_millis() - start_ms < interval_ms) return;// not enough time |
| 76 | + start_ms += interval_ms; |
| 77 | + |
| 78 | + board_led_write(led_state); |
| 79 | + led_state = 1 - led_state;// toggle |
| 80 | +} |
| 81 | + |
| 82 | +//--------------------------------------------------------------------+ |
| 83 | +// MIDI host receive task |
| 84 | +//--------------------------------------------------------------------+ |
| 85 | +void midi_host_rx_task(void) { |
| 86 | + // nothing to do, we just print out received data in callback |
| 87 | +} |
| 88 | + |
| 89 | +//--------------------------------------------------------------------+ |
| 90 | +// TinyUSB Callbacks |
| 91 | +//--------------------------------------------------------------------+ |
| 92 | + |
| 93 | +// Invoked when device with MIDI interface is mounted. |
| 94 | +void tuh_midi_mount_cb(uint8_t idx, const tuh_midi_mount_cb_t* mount_cb_data) { |
| 95 | + printf("MIDI Interface Index = %u, Address = %u, Number of RX cables = %u, Number of TX cables = %u\r\n", |
| 96 | + idx, mount_cb_data->daddr, mount_cb_data->rx_cable_count, mount_cb_data->tx_cable_count); |
| 97 | +} |
| 98 | + |
| 99 | +// Invoked when device with hid interface is un-mounted |
| 100 | +void tuh_midi_umount_cb(uint8_t idx) { |
| 101 | + printf("MIDI Interface Index = %u is unmounted\r\n", idx); |
| 102 | +} |
| 103 | + |
| 104 | +void tuh_midi_rx_cb(uint8_t idx, uint32_t xferred_bytes) { |
| 105 | + if (xferred_bytes == 0) { |
| 106 | + return; |
| 107 | + } |
| 108 | + |
| 109 | + uint8_t buffer[48]; |
| 110 | + uint8_t cable_num = 0; |
| 111 | + uint32_t bytes_read = tuh_midi_stream_read(idx, &cable_num, buffer, sizeof(buffer)); |
| 112 | + |
| 113 | + printf("Cable %u rx: ", cable_num); |
| 114 | + for (uint32_t i = 0; i < bytes_read; i++) { |
| 115 | + printf("%02X ", buffer[i]); |
| 116 | + } |
| 117 | + printf("\r\n"); |
| 118 | +} |
| 119 | + |
| 120 | +void tuh_midi_tx_cb(uint8_t idx, uint32_t xferred_bytes) { |
| 121 | + (void) idx; |
| 122 | + (void) xferred_bytes; |
| 123 | +} |
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