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@@ -1,361 +1,361 @@
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
|
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* furnished to do so, subject to the following conditions:
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*
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||||
* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "tusb_option.h"
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#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_MIDI)
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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#include "midi_device.h"
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#include "class/audio/audio.h"
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#include "device/usbd_pvt.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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typedef struct
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{
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uint8_t itf_num;
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uint8_t ep_in;
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uint8_t ep_out;
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/*------------- From this point, data is not cleared by bus reset -------------*/
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// FIFO
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tu_fifo_t rx_ff;
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tu_fifo_t tx_ff;
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uint8_t rx_ff_buf[CFG_TUD_MIDI_RX_BUFSIZE];
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uint8_t tx_ff_buf[CFG_TUD_MIDI_TX_BUFSIZE];
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#if CFG_FIFO_MUTEX
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osal_mutex_def_t rx_ff_mutex;
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osal_mutex_def_t tx_ff_mutex;
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#endif
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// We need to pack messages into words before queueing their transmission so buffer across write
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// calls.
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uint8_t message_buffer[4];
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uint8_t message_buffer_length;
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uint8_t message_target_length;
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// Endpoint Transfer buffer
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CFG_TUSB_MEM_ALIGN uint8_t epout_buf[CFG_TUD_MIDI_EPSIZE];
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CFG_TUSB_MEM_ALIGN uint8_t epin_buf[CFG_TUD_MIDI_EPSIZE];
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} midid_interface_t;
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#define ITF_MEM_RESET_SIZE offsetof(midid_interface_t, rx_ff)
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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CFG_TUSB_MEM_SECTION midid_interface_t _midid_itf[CFG_TUD_MIDI];
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bool tud_midi_n_mounted (uint8_t itf)
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{
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midid_interface_t* midi = &_midid_itf[itf];
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return midi->ep_in && midi->ep_out;
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}
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//--------------------------------------------------------------------+
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// READ API
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//--------------------------------------------------------------------+
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uint32_t tud_midi_n_available(uint8_t itf, uint8_t jack_id)
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{
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(void) jack_id;
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return tu_fifo_count(&_midid_itf[itf].rx_ff);
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}
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uint32_t tud_midi_n_read(uint8_t itf, uint8_t jack_id, void* buffer, uint32_t bufsize)
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{
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(void) jack_id;
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return tu_fifo_read_n(&_midid_itf[itf].rx_ff, buffer, bufsize);
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}
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void tud_midi_n_read_flush (uint8_t itf, uint8_t jack_id)
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{
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(void) jack_id;
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tu_fifo_clear(&_midid_itf[itf].rx_ff);
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}
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void midi_rx_done_cb(midid_interface_t* midi, uint8_t const* buffer, uint32_t bufsize) {
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if (bufsize % 4 != 0) {
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return;
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}
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for(uint32_t i=0; i<bufsize; i += 4) {
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uint8_t header = buffer[i];
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// uint8_t cable_number = (header & 0xf0) >> 4;
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uint8_t code_index = header & 0x0f;
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// We always copy over the first byte.
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uint8_t count = 1;
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// Ignore subsequent bytes based on the code.
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if (code_index != 0x5 && code_index != 0xf) {
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count = 2;
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if (code_index != 0x2 && code_index != 0x6 && code_index != 0xc && code_index != 0xd) {
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count = 3;
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}
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}
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tu_fifo_write_n(&midi->rx_ff, &buffer[i + 1], count);
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}
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}
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//--------------------------------------------------------------------+
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// WRITE API
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//--------------------------------------------------------------------+
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static bool maybe_transmit(midid_interface_t* midi, uint8_t itf_index)
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{
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(void) itf_index;
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// skip if previous transfer not complete
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TU_VERIFY( !usbd_edpt_busy(TUD_OPT_RHPORT, midi->ep_in) );
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uint16_t count = tu_fifo_read_n(&midi->tx_ff, midi->epin_buf, CFG_TUD_MIDI_EPSIZE);
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if (count > 0)
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{
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TU_ASSERT( usbd_edpt_xfer(TUD_OPT_RHPORT, midi->ep_in, midi->epin_buf, count) );
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}
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return true;
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}
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uint32_t tud_midi_n_write(uint8_t itf, uint8_t jack_id, uint8_t const* buffer, uint32_t bufsize)
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{
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midid_interface_t* midi = &_midid_itf[itf];
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if (midi->itf_num == 0) {
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return 0;
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}
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uint32_t i = 0;
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while (i < bufsize) {
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uint8_t data = buffer[i];
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if (midi->message_buffer_length == 0) {
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uint8_t msg = data >> 4;
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midi->message_buffer[1] = data;
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midi->message_buffer_length = 2;
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// Check to see if we're still in a SysEx transmit.
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if (midi->message_buffer[0] == 0x4) {
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if (data == 0xf7) {
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midi->message_buffer[0] = 0x5;
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} else {
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midi->message_buffer_length = 4;
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}
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} else if ((msg >= 0x8 && msg <= 0xB) || msg == 0xE) {
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midi->message_buffer[0] = jack_id << 4 | msg;
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midi->message_target_length = 4;
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} else if (msg == 0xC || msg == 0xD) {
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midi->message_buffer[0] = jack_id << 4 | msg;
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midi->message_target_length = 3;
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} else if (msg == 0xf) {
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if (data == 0xf0) {
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midi->message_buffer[0] = 0x4;
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midi->message_target_length = 4;
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} else if (data == 0xf1 || data == 0xf3) {
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midi->message_buffer[0] = 0x2;
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midi->message_target_length = 3;
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} else if (data == 0xf2) {
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midi->message_buffer[0] = 0x3;
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midi->message_target_length = 4;
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} else {
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midi->message_buffer[0] = 0x5;
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midi->message_target_length = 2;
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}
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} else {
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// Pack individual bytes if we don't support packing them into words.
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midi->message_buffer[0] = jack_id << 4 | 0xf;
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midi->message_buffer[2] = 0;
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midi->message_buffer[3] = 0;
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midi->message_buffer_length = 2;
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midi->message_target_length = 2;
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}
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} else {
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midi->message_buffer[midi->message_buffer_length] = data;
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midi->message_buffer_length += 1;
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// See if this byte ends a SysEx.
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if (midi->message_buffer[0] == 0x4 && data == 0xf7) {
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midi->message_buffer[0] = 0x4 + (midi->message_buffer_length - 1);
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midi->message_target_length = midi->message_buffer_length;
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}
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}
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if (midi->message_buffer_length == midi->message_target_length) {
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uint16_t written = tu_fifo_write_n(&midi->tx_ff, midi->message_buffer, 4);
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if (written < 4) {
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TU_ASSERT( written == 0 );
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break;
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}
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midi->message_buffer_length = 0;
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}
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i++;
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}
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maybe_transmit(midi, itf);
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return i;
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}
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//--------------------------------------------------------------------+
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// USBD Driver API
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//--------------------------------------------------------------------+
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void midid_init(void)
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{
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tu_memclr(_midid_itf, sizeof(_midid_itf));
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for(uint8_t i=0; i<CFG_TUD_MIDI; i++)
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{
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midid_interface_t* midi = &_midid_itf[i];
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// config fifo
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tu_fifo_config(&midi->rx_ff, midi->rx_ff_buf, CFG_TUD_MIDI_RX_BUFSIZE, 1, true);
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tu_fifo_config(&midi->tx_ff, midi->tx_ff_buf, CFG_TUD_MIDI_TX_BUFSIZE, 1, true);
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#if CFG_FIFO_MUTEX
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tu_fifo_config_mutex(&midi->rx_ff, osal_mutex_create(&midi->rx_ff_mutex));
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tu_fifo_config_mutex(&midi->tx_ff, osal_mutex_create(&midi->tx_ff_mutex));
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#endif
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}
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}
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void midid_reset(uint8_t rhport)
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{
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(void) rhport;
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for(uint8_t i=0; i<CFG_TUD_MIDI; i++)
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{
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midid_interface_t* midi = &_midid_itf[i];
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tu_memclr(midi, ITF_MEM_RESET_SIZE);
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tu_fifo_clear(&midi->rx_ff);
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tu_fifo_clear(&midi->tx_ff);
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}
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}
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bool midid_open(uint8_t rhport, tusb_desc_interface_t const * p_interface_desc, uint16_t *p_length)
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{
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// For now handle the audio control interface as well.
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if ( AUDIO_SUBCLASS_CONTROL == p_interface_desc->bInterfaceSubClass) {
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uint8_t const * p_desc = tu_desc_next ( (uint8_t const *) p_interface_desc );
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(*p_length) = sizeof(tusb_desc_interface_t);
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// Skip over the class specific descriptor.
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(*p_length) += tu_desc_len(p_desc);
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p_desc = tu_desc_next(p_desc);
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return true;
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}
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TU_VERIFY(AUDIO_SUBCLASS_MIDI_STREAMING == p_interface_desc->bInterfaceSubClass &&
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AUDIO_PROTOCOL_V1 == p_interface_desc->bInterfaceProtocol );
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// Find available interface
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midid_interface_t * p_midi = NULL;
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for(uint8_t i=0; i<CFG_TUD_MIDI; i++)
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{
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if ( _midid_itf[i].ep_in == 0 && _midid_itf[i].ep_out == 0 )
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{
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p_midi = &_midid_itf[i];
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break;
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}
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}
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p_midi->itf_num = p_interface_desc->bInterfaceNumber;
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uint8_t const * p_desc = tu_desc_next( (uint8_t const *) p_interface_desc );
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(*p_length) = sizeof(tusb_desc_interface_t);
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uint8_t found_endpoints = 0;
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while (found_endpoints < p_interface_desc->bNumEndpoints)
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{
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if ( TUSB_DESC_ENDPOINT == p_desc[DESC_OFFSET_TYPE])
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{
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TU_ASSERT( dcd_edpt_open(rhport, (tusb_desc_endpoint_t const *) p_desc), false);
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uint8_t ep_addr = ((tusb_desc_endpoint_t const *) p_desc)->bEndpointAddress;
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if (tu_edpt_dir(ep_addr) == TUSB_DIR_IN) {
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p_midi->ep_in = ep_addr;
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} else {
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p_midi->ep_out = ep_addr;
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}
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(*p_length) += p_desc[DESC_OFFSET_LEN];
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p_desc = tu_desc_next(p_desc);
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found_endpoints += 1;
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}
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(*p_length) += p_desc[DESC_OFFSET_LEN];
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p_desc = tu_desc_next(p_desc);
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}
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// Prepare for incoming data
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TU_ASSERT( usbd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), false);
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return true;
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}
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bool midid_control_complete(uint8_t rhport, tusb_control_request_t const * p_request)
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{
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(void) rhport;
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(void) p_request;
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return true;
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}
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bool midid_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
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{
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(void) rhport;
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(void) p_request;
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// driver doesn't support any request yet
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return false;
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}
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bool midid_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)
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{
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(void) result;
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|
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uint8_t itf = 0;
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midid_interface_t* p_midi = _midid_itf;
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for ( ; ; itf++, p_midi++)
|
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{
|
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if (itf >= TU_ARRAY_SIZE(_midid_itf)) return false;
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|
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if ( ep_addr == p_midi->ep_out ) break;
|
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}
|
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|
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// receive new data
|
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if ( ep_addr == p_midi->ep_out )
|
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{
|
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midi_rx_done_cb(p_midi, p_midi->epout_buf, xferred_bytes);
|
||||
|
||||
// prepare for next
|
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TU_ASSERT( usbd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), false );
|
||||
} else if ( ep_addr == p_midi->ep_in ) {
|
||||
maybe_transmit(p_midi, itf);
|
||||
}
|
||||
|
||||
// nothing to do with in and notif endpoint
|
||||
|
||||
return TUSB_ERROR_NONE;
|
||||
}
|
||||
|
||||
#endif
|
||||
/*
|
||||
* 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.
|
||||
*
|
||||
* This file is part of the TinyUSB stack.
|
||||
*/
|
||||
|
||||
#include "tusb_option.h"
|
||||
|
||||
#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_MIDI)
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// INCLUDE
|
||||
//--------------------------------------------------------------------+
|
||||
#include "midi_device.h"
|
||||
#include "class/audio/audio.h"
|
||||
#include "device/usbd_pvt.h"
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// MACRO CONSTANT TYPEDEF
|
||||
//--------------------------------------------------------------------+
|
||||
typedef struct
|
||||
{
|
||||
uint8_t itf_num;
|
||||
uint8_t ep_in;
|
||||
uint8_t ep_out;
|
||||
|
||||
/*------------- From this point, data is not cleared by bus reset -------------*/
|
||||
// FIFO
|
||||
tu_fifo_t rx_ff;
|
||||
tu_fifo_t tx_ff;
|
||||
uint8_t rx_ff_buf[CFG_TUD_MIDI_RX_BUFSIZE];
|
||||
uint8_t tx_ff_buf[CFG_TUD_MIDI_TX_BUFSIZE];
|
||||
|
||||
#if CFG_FIFO_MUTEX
|
||||
osal_mutex_def_t rx_ff_mutex;
|
||||
osal_mutex_def_t tx_ff_mutex;
|
||||
#endif
|
||||
|
||||
// We need to pack messages into words before queueing their transmission so buffer across write
|
||||
// calls.
|
||||
uint8_t message_buffer[4];
|
||||
uint8_t message_buffer_length;
|
||||
uint8_t message_target_length;
|
||||
|
||||
// Endpoint Transfer buffer
|
||||
CFG_TUSB_MEM_ALIGN uint8_t epout_buf[CFG_TUD_MIDI_EPSIZE];
|
||||
CFG_TUSB_MEM_ALIGN uint8_t epin_buf[CFG_TUD_MIDI_EPSIZE];
|
||||
|
||||
} midid_interface_t;
|
||||
|
||||
#define ITF_MEM_RESET_SIZE offsetof(midid_interface_t, rx_ff)
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// INTERNAL OBJECT & FUNCTION DECLARATION
|
||||
//--------------------------------------------------------------------+
|
||||
CFG_TUSB_MEM_SECTION midid_interface_t _midid_itf[CFG_TUD_MIDI];
|
||||
|
||||
bool tud_midi_n_mounted (uint8_t itf)
|
||||
{
|
||||
midid_interface_t* midi = &_midid_itf[itf];
|
||||
return midi->ep_in && midi->ep_out;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// READ API
|
||||
//--------------------------------------------------------------------+
|
||||
uint32_t tud_midi_n_available(uint8_t itf, uint8_t jack_id)
|
||||
{
|
||||
(void) jack_id;
|
||||
return tu_fifo_count(&_midid_itf[itf].rx_ff);
|
||||
}
|
||||
|
||||
uint32_t tud_midi_n_read(uint8_t itf, uint8_t jack_id, void* buffer, uint32_t bufsize)
|
||||
{
|
||||
(void) jack_id;
|
||||
return tu_fifo_read_n(&_midid_itf[itf].rx_ff, buffer, bufsize);
|
||||
}
|
||||
|
||||
void tud_midi_n_read_flush (uint8_t itf, uint8_t jack_id)
|
||||
{
|
||||
(void) jack_id;
|
||||
tu_fifo_clear(&_midid_itf[itf].rx_ff);
|
||||
}
|
||||
|
||||
void midi_rx_done_cb(midid_interface_t* midi, uint8_t const* buffer, uint32_t bufsize) {
|
||||
if (bufsize % 4 != 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
for(uint32_t i=0; i<bufsize; i += 4) {
|
||||
uint8_t header = buffer[i];
|
||||
// uint8_t cable_number = (header & 0xf0) >> 4;
|
||||
uint8_t code_index = header & 0x0f;
|
||||
// We always copy over the first byte.
|
||||
uint8_t count = 1;
|
||||
// Ignore subsequent bytes based on the code.
|
||||
if (code_index != 0x5 && code_index != 0xf) {
|
||||
count = 2;
|
||||
if (code_index != 0x2 && code_index != 0x6 && code_index != 0xc && code_index != 0xd) {
|
||||
count = 3;
|
||||
}
|
||||
}
|
||||
tu_fifo_write_n(&midi->rx_ff, &buffer[i + 1], count);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// WRITE API
|
||||
//--------------------------------------------------------------------+
|
||||
|
||||
static bool maybe_transmit(midid_interface_t* midi, uint8_t itf_index)
|
||||
{
|
||||
(void) itf_index;
|
||||
|
||||
// skip if previous transfer not complete
|
||||
TU_VERIFY( !usbd_edpt_busy(TUD_OPT_RHPORT, midi->ep_in) );
|
||||
|
||||
uint16_t count = tu_fifo_read_n(&midi->tx_ff, midi->epin_buf, CFG_TUD_MIDI_EPSIZE);
|
||||
if (count > 0)
|
||||
{
|
||||
TU_ASSERT( usbd_edpt_xfer(TUD_OPT_RHPORT, midi->ep_in, midi->epin_buf, count) );
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
uint32_t tud_midi_n_write(uint8_t itf, uint8_t jack_id, uint8_t const* buffer, uint32_t bufsize)
|
||||
{
|
||||
midid_interface_t* midi = &_midid_itf[itf];
|
||||
if (midi->itf_num == 0) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
uint32_t i = 0;
|
||||
while (i < bufsize) {
|
||||
uint8_t data = buffer[i];
|
||||
if (midi->message_buffer_length == 0) {
|
||||
uint8_t msg = data >> 4;
|
||||
midi->message_buffer[1] = data;
|
||||
midi->message_buffer_length = 2;
|
||||
// Check to see if we're still in a SysEx transmit.
|
||||
if (midi->message_buffer[0] == 0x4) {
|
||||
if (data == 0xf7) {
|
||||
midi->message_buffer[0] = 0x5;
|
||||
} else {
|
||||
midi->message_buffer_length = 4;
|
||||
}
|
||||
} else if ((msg >= 0x8 && msg <= 0xB) || msg == 0xE) {
|
||||
midi->message_buffer[0] = jack_id << 4 | msg;
|
||||
midi->message_target_length = 4;
|
||||
} else if (msg == 0xC || msg == 0xD) {
|
||||
midi->message_buffer[0] = jack_id << 4 | msg;
|
||||
midi->message_target_length = 3;
|
||||
} else if (msg == 0xf) {
|
||||
if (data == 0xf0) {
|
||||
midi->message_buffer[0] = 0x4;
|
||||
midi->message_target_length = 4;
|
||||
} else if (data == 0xf1 || data == 0xf3) {
|
||||
midi->message_buffer[0] = 0x2;
|
||||
midi->message_target_length = 3;
|
||||
} else if (data == 0xf2) {
|
||||
midi->message_buffer[0] = 0x3;
|
||||
midi->message_target_length = 4;
|
||||
} else {
|
||||
midi->message_buffer[0] = 0x5;
|
||||
midi->message_target_length = 2;
|
||||
}
|
||||
} else {
|
||||
// Pack individual bytes if we don't support packing them into words.
|
||||
midi->message_buffer[0] = jack_id << 4 | 0xf;
|
||||
midi->message_buffer[2] = 0;
|
||||
midi->message_buffer[3] = 0;
|
||||
midi->message_buffer_length = 2;
|
||||
midi->message_target_length = 2;
|
||||
}
|
||||
} else {
|
||||
midi->message_buffer[midi->message_buffer_length] = data;
|
||||
midi->message_buffer_length += 1;
|
||||
// See if this byte ends a SysEx.
|
||||
if (midi->message_buffer[0] == 0x4 && data == 0xf7) {
|
||||
midi->message_buffer[0] = 0x4 + (midi->message_buffer_length - 1);
|
||||
midi->message_target_length = midi->message_buffer_length;
|
||||
}
|
||||
}
|
||||
|
||||
if (midi->message_buffer_length == midi->message_target_length) {
|
||||
uint16_t written = tu_fifo_write_n(&midi->tx_ff, midi->message_buffer, 4);
|
||||
if (written < 4) {
|
||||
TU_ASSERT( written == 0 );
|
||||
break;
|
||||
}
|
||||
midi->message_buffer_length = 0;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
maybe_transmit(midi, itf);
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// USBD Driver API
|
||||
//--------------------------------------------------------------------+
|
||||
void midid_init(void)
|
||||
{
|
||||
tu_memclr(_midid_itf, sizeof(_midid_itf));
|
||||
|
||||
for(uint8_t i=0; i<CFG_TUD_MIDI; i++)
|
||||
{
|
||||
midid_interface_t* midi = &_midid_itf[i];
|
||||
|
||||
// config fifo
|
||||
tu_fifo_config(&midi->rx_ff, midi->rx_ff_buf, CFG_TUD_MIDI_RX_BUFSIZE, 1, true);
|
||||
tu_fifo_config(&midi->tx_ff, midi->tx_ff_buf, CFG_TUD_MIDI_TX_BUFSIZE, 1, true);
|
||||
|
||||
#if CFG_FIFO_MUTEX
|
||||
tu_fifo_config_mutex(&midi->rx_ff, osal_mutex_create(&midi->rx_ff_mutex));
|
||||
tu_fifo_config_mutex(&midi->tx_ff, osal_mutex_create(&midi->tx_ff_mutex));
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
void midid_reset(uint8_t rhport)
|
||||
{
|
||||
(void) rhport;
|
||||
|
||||
for(uint8_t i=0; i<CFG_TUD_MIDI; i++)
|
||||
{
|
||||
midid_interface_t* midi = &_midid_itf[i];
|
||||
tu_memclr(midi, ITF_MEM_RESET_SIZE);
|
||||
tu_fifo_clear(&midi->rx_ff);
|
||||
tu_fifo_clear(&midi->tx_ff);
|
||||
}
|
||||
}
|
||||
|
||||
bool midid_open(uint8_t rhport, tusb_desc_interface_t const * p_interface_desc, uint16_t *p_length)
|
||||
{
|
||||
// For now handle the audio control interface as well.
|
||||
if ( AUDIO_SUBCLASS_CONTROL == p_interface_desc->bInterfaceSubClass) {
|
||||
uint8_t const * p_desc = tu_desc_next ( (uint8_t const *) p_interface_desc );
|
||||
(*p_length) = sizeof(tusb_desc_interface_t);
|
||||
|
||||
// Skip over the class specific descriptor.
|
||||
(*p_length) += tu_desc_len(p_desc);
|
||||
p_desc = tu_desc_next(p_desc);
|
||||
return true;
|
||||
}
|
||||
|
||||
TU_VERIFY(AUDIO_SUBCLASS_MIDI_STREAMING == p_interface_desc->bInterfaceSubClass &&
|
||||
AUDIO_PROTOCOL_V1 == p_interface_desc->bInterfaceProtocol );
|
||||
|
||||
// Find available interface
|
||||
midid_interface_t * p_midi = NULL;
|
||||
for(uint8_t i=0; i<CFG_TUD_MIDI; i++)
|
||||
{
|
||||
if ( _midid_itf[i].ep_in == 0 && _midid_itf[i].ep_out == 0 )
|
||||
{
|
||||
p_midi = &_midid_itf[i];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
p_midi->itf_num = p_interface_desc->bInterfaceNumber;
|
||||
|
||||
uint8_t const * p_desc = tu_desc_next( (uint8_t const *) p_interface_desc );
|
||||
(*p_length) = sizeof(tusb_desc_interface_t);
|
||||
|
||||
uint8_t found_endpoints = 0;
|
||||
while (found_endpoints < p_interface_desc->bNumEndpoints)
|
||||
{
|
||||
if ( TUSB_DESC_ENDPOINT == p_desc[DESC_OFFSET_TYPE])
|
||||
{
|
||||
TU_ASSERT( dcd_edpt_open(rhport, (tusb_desc_endpoint_t const *) p_desc), false);
|
||||
uint8_t ep_addr = ((tusb_desc_endpoint_t const *) p_desc)->bEndpointAddress;
|
||||
if (tu_edpt_dir(ep_addr) == TUSB_DIR_IN) {
|
||||
p_midi->ep_in = ep_addr;
|
||||
} else {
|
||||
p_midi->ep_out = ep_addr;
|
||||
}
|
||||
|
||||
(*p_length) += p_desc[DESC_OFFSET_LEN];
|
||||
p_desc = tu_desc_next(p_desc);
|
||||
found_endpoints += 1;
|
||||
}
|
||||
(*p_length) += p_desc[DESC_OFFSET_LEN];
|
||||
p_desc = tu_desc_next(p_desc);
|
||||
}
|
||||
|
||||
// Prepare for incoming data
|
||||
TU_ASSERT( usbd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), false);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool midid_control_complete(uint8_t rhport, tusb_control_request_t const * p_request)
|
||||
{
|
||||
(void) rhport;
|
||||
(void) p_request;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool midid_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
|
||||
{
|
||||
(void) rhport;
|
||||
(void) p_request;
|
||||
|
||||
// driver doesn't support any request yet
|
||||
return false;
|
||||
}
|
||||
|
||||
bool midid_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)
|
||||
{
|
||||
(void) result;
|
||||
|
||||
uint8_t itf = 0;
|
||||
midid_interface_t* p_midi = _midid_itf;
|
||||
|
||||
for ( ; ; itf++, p_midi++)
|
||||
{
|
||||
if (itf >= TU_ARRAY_SIZE(_midid_itf)) return false;
|
||||
|
||||
if ( ep_addr == p_midi->ep_out ) break;
|
||||
}
|
||||
|
||||
// receive new data
|
||||
if ( ep_addr == p_midi->ep_out )
|
||||
{
|
||||
midi_rx_done_cb(p_midi, p_midi->epout_buf, xferred_bytes);
|
||||
|
||||
// prepare for next
|
||||
TU_ASSERT( usbd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), false );
|
||||
} else if ( ep_addr == p_midi->ep_in ) {
|
||||
maybe_transmit(p_midi, itf);
|
||||
}
|
||||
|
||||
// nothing to do with in and notif endpoint
|
||||
|
||||
return TUSB_ERROR_NONE;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
Reference in New Issue
Block a user