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Add USB Midi support.

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It also introduces a txbuffer which copies data into it but passes
the buffer straight to the USB rather than another copy.
This commit is contained in:
Scott Shawcroft 2018-11-16 17:03:33 -08:00
parent 6ed96cb93b
commit a3173b8de4
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GPG Key ID: FD0EDC4B6C53CA59
7 changed files with 712 additions and 1 deletions
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1
examples/device/cdc_msc_hid/src/tusb_config.h
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@ -109,6 +109,7 @@
//------------- CLASS -------------//
#define CFG_TUD_CDC 1
#define CFG_TUD_MSC 1
#define CFG_TUD_MIDI 0
#define CFG_TUD_CUSTOM_CLASS 0
#define CFG_TUD_HID 0

78
src/class/audio/audio.h Normal file
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/**************************************************************************/
/*!
@file cdc.h
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2013, hathach (tinyusb.org)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This file is part of the tinyusb stack.
*/
/**************************************************************************/
/** \ingroup group_class
* \defgroup ClassDriver_Audio Audio
* Currently only MIDI subclass is supported
* @{ */
#ifndef _TUSB_CDC_H__
#define _TUSB_CDC_H__
#include "common/tusb_common.h"
#ifdef __cplusplus
extern "C" {
#endif
/// Audio Interface Subclass Codes
typedef enum
{
AUDIO_SUBCLASS_AUDIO_CONTROL = 0x01 , ///< Audio Control
AUDIO_SUBCLASS_AUDIO_STREAMING , ///< Audio Streaming
AUDIO_SUBCLASS_MIDI_STREAMING , ///< MIDI Streaming
} audio_subclass_type_t;
/// Audio Protocol Codes
typedef enum
{
AUDIO_PROTOCOL_V1 = 0x00, ///< Version 1.0
AUDIO_PROTOCOL_V2 = 0x20, ///< Version 2.0
AUDIO_PROTOCOL_V3 = 0x30, ///< Version 3.0
} audio_protocol_type_t;
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/** @} */

84
src/class/midi/midi.h Normal file
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@ -0,0 +1,84 @@
/**************************************************************************/
/*!
@file cdc.h
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2013, hathach (tinyusb.org)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This file is part of the tinyusb stack.
*/
/**************************************************************************/
/** \ingroup group_class
* \defgroup ClassDriver_CDC Communication Device Class (CDC)
* Currently only Abstract Control Model subclass is supported
* @{ */
#ifndef _TUSB_MIDI_H__
#define _TUSB_MIDI_H__
#include "common/tusb_common.h"
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// FUNCTIONAL DESCRIPTOR (COMMUNICATION INTERFACE)
//--------------------------------------------------------------------+
/// Header Functional Descriptor (Communication Interface)
typedef struct ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType ; ///< Descriptor Type, must be Class-Specific
uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above MIDI_FUCN_DESC_
uint16_t bcdMSC ; ///< MidiStreaming SubClass release number in Binary-Coded Decimal
uint16_t wTotalLength ;
}midi_desc_func_header_t;
/// Union Functional Descriptor (Communication Interface)
typedef struct ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType ; ///< Descriptor Type, must be Class-Specific
uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
uint8_t bControlInterface ; ///< Interface number of Communication Interface
uint8_t bSubordinateInterface ; ///< Array of Interface number of Data Interface
}cdc_desc_func_union_t;
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/** @} */

412
src/class/midi/midi_device.c Normal file
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@ -0,0 +1,412 @@
/**************************************************************************/
/*!
@file cdc_device.c
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2013, hathach (tinyusb.org)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This file is part of the tinyusb stack.
*/
/**************************************************************************/
#include "tusb_option.h"
#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_MIDI)
#define _TINY_USB_SOURCE_FILE_
//--------------------------------------------------------------------+
// 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;
// FIFO
tu_fifo_t rx_ff;
uint8_t rx_ff_buf[CFG_TUD_MIDI_RX_BUFSIZE];
osal_mutex_def_t rx_ff_mutex;
#if CFG_TUD_MIDI_TX_BUFSIZE % CFG_TUD_MIDI_EPSIZE != 0
#error "TX buffer size must be multiple of endpoint size."
#endif
// This is a ring buffer that aligns to word boundaries so that it can be transferred directly to
// the USB peripheral. There are three states to the data: free, transmitting and pending.
CFG_TUSB_MEM_ALIGN uint8_t tx_buf[CFG_TUD_MIDI_TX_BUFSIZE];
uint16_t tx_buf_len;
uint16_t first_free;
uint16_t pending_count;
uint16_t transmitting_count;
// 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];
} midid_interface_t;
#define ITF_MEM_RESET_SIZE offsetof(midid_interface_t, rx_ff)
//--------------------------------------------------------------------+
// INTERNAL OBJECT & FUNCTION DECLARATION
//--------------------------------------------------------------------+
CFG_TUSB_ATTR_USBRAM midid_interface_t _midid_itf[CFG_TUD_MIDI];
bool tud_midi_n_connected(uint8_t itf) {
midid_interface_t* midi = &_midid_itf[itf];
return midi->itf_num != 0;
}
//--------------------------------------------------------------------+
// READ API
//--------------------------------------------------------------------+
uint32_t tud_midi_n_available(uint8_t itf, uint8_t jack_id)
{
return tu_fifo_count(&_midid_itf[itf].rx_ff);
}
char tud_midi_n_read_char(uint8_t itf, uint8_t jack_id)
{
char ch;
return tu_fifo_read(&_midid_itf[itf].rx_ff, &ch) ? ch : (-1);
}
uint32_t tud_midi_n_read(uint8_t itf, uint8_t jack_id, void* buffer, uint32_t bufsize)
{
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)
{
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
//--------------------------------------------------------------------+
uint16_t maybe_transmit(midid_interface_t* midi) {
if (midi->transmitting_count > 0 || midi->pending_count == 0) {
return 0;
}
midi->transmitting_count = midi->pending_count;
uint16_t transmit_start_index;
// The pending zone wraps back to the end so we must do two transfers.
if (midi->pending_count > midi->first_free) {
midi->transmitting_count -= midi->first_free;
transmit_start_index = midi->tx_buf_len - midi->transmitting_count;
} else {
transmit_start_index = midi->first_free - midi->transmitting_count;
// We are transmitting up to first free so ensure it's word aligned for the next transmit.
uint8_t over_aligned = midi->first_free % sizeof(size_t);
if (over_aligned != 0) {
midi->first_free = (midi->first_free + (sizeof(size_t) - midi->first_free)) % midi->tx_buf_len;
}
}
midi->pending_count -= midi->transmitting_count;
uint8_t* tx_start = midi->tx_buf + transmit_start_index;
if (!dcd_edpt_xfer(0, midi->ep_in, tx_start, midi->transmitting_count)) {
return 0;
}
return midi->transmitting_count;
}
uint32_t tud_tx_buf_write_done_cb(midid_interface_t* midi, uint32_t bufsize) {
midi->transmitting_count -= bufsize;
uint16_t len = maybe_transmit(midi);
return len;
}
uint32_t tud_tx_buf_write(midid_interface_t* midi, uint8_t const* buffer, uint32_t bufsize) {
uint32_t len;
int32_t last_free = midi->first_free - midi->pending_count - midi->transmitting_count;
if (last_free < 0) {
len = (last_free + midi->tx_buf_len) - midi->first_free;
} else {
len = midi->tx_buf_len - midi->first_free;
}
if (bufsize < len) {
len = bufsize;
}
memcpy(midi->tx_buf + midi->first_free, buffer, len);
// uint32_t remaining_bytes
// if (last_free > 0 && len < bufsize) {
// if ()
//
// }
midi->first_free = (midi->first_free + len) % midi->tx_buf_len;
midi->pending_count += len;
maybe_transmit(midi);
return len;
}
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 == 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) {
tud_tx_buf_write(midi, midi->message_buffer, 4);
midi->message_buffer_length = 0;
}
i++;
}
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);
#if CFG_FIFO_MUTEX
tu_fifo_config_mutex(&midi->rx_ff, osal_mutex_create(&midi->rx_ff_mutex));
#endif
midi->tx_buf_len = CFG_TUD_MIDI_TX_BUFSIZE;
midi->first_free = 0;
midi->pending_count = 0;
midi->transmitting_count = 0;
}
}
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);
midi->tx_buf_len = CFG_TUD_MIDI_TX_BUFSIZE;
midi->first_free = 0;
midi->pending_count = 0;
midi->transmitting_count = 0;
}
}
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_AUDIO_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) += p_desc[DESC_OFFSET_LEN];
p_desc = tu_desc_next(p_desc);
return true;
}
if ( AUDIO_SUBCLASS_MIDI_STREAMING != p_interface_desc->bInterfaceSubClass ||
p_interface_desc->bInterfaceProtocol != AUDIO_PROTOCOL_V1 ) {
return false;
}
// 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( dcd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), false);
return true;
}
bool midid_control_request_complete(uint8_t rhport, tusb_control_request_t const * p_request)
{
return false;
}
bool midid_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
{
//------------- Class Specific Request -------------//
if (p_request->bmRequestType_bit.type != TUSB_REQ_TYPE_CLASS) return false;
return false;
}
bool midid_xfer_cb(uint8_t rhport, uint8_t edpt_addr, xfer_result_t result, uint32_t xferred_bytes)
{
// TODO Support multiple interfaces
uint8_t const itf = 0;
midid_interface_t* p_midi = &_midid_itf[itf];
// receive new data
if ( edpt_addr == p_midi->ep_out )
{
midi_rx_done_cb(p_midi, p_midi->epout_buf, xferred_bytes);
// prepare for next
TU_ASSERT( dcd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), false );
} else if ( edpt_addr == p_midi->ep_in ) {
tud_tx_buf_write_done_cb(p_midi, xferred_bytes);
}
// nothing to do with in and notif endpoint
return TUSB_ERROR_NONE;
}
#endif

120
src/class/midi/midi_device.h Normal file
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/**************************************************************************/
/*!
@file midi_device.h
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2013, hathach (tinyusb.org)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This file is part of the tinyusb stack.
*/
/**************************************************************************/
#ifndef _TUSB_MIDI_DEVICE_H_
#define _TUSB_MIDI_DEVICE_H_
#include "common/tusb_common.h"
#include "device/usbd.h"
#include "class/audio/audio.h"
//--------------------------------------------------------------------+
// Class Driver Configuration
//--------------------------------------------------------------------+
#ifndef CFG_TUD_MIDI_EPSIZE
#define CFG_TUD_MIDI_EPSIZE 64
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** \addtogroup MIDI_Serial Serial
* @{
* \defgroup MIDI_Serial_Device Device
* @{ */
//--------------------------------------------------------------------+
// APPLICATION API (Multiple Interfaces)
// CFG_TUD_MIDI > 1
//--------------------------------------------------------------------+
bool tud_midi_n_connected (uint8_t itf);
uint32_t tud_midi_n_available (uint8_t itf, uint8_t jack_id);
char tud_midi_n_read_char (uint8_t itf, uint8_t jack_id);
uint32_t tud_midi_n_read (uint8_t itf, uint8_t jack_id, void* buffer, uint32_t bufsize);
void tud_midi_n_read_flush (uint8_t itf, uint8_t jack_id);
char tud_midi_n_peek (uint8_t itf, uint8_t jack_id, int pos);
uint32_t tud_midi_n_write_char (uint8_t itf, char ch);
uint32_t tud_midi_n_write (uint8_t itf, uint8_t jack_id, uint8_t const* buffer, uint32_t bufsize);
bool tud_midi_n_write_flush (uint8_t itf);
//--------------------------------------------------------------------+
// APPLICATION API (Interface0)
//--------------------------------------------------------------------+
static inline bool tud_midi_connected (void) { return tud_midi_n_connected(0); }
static inline uint32_t tud_midi_available (void) { return tud_midi_n_available(0, 0); }
static inline char tud_midi_read_char (void) { return tud_midi_n_read_char(0, 0); }
static inline uint32_t tud_midi_read (void* buffer, uint32_t bufsize) { return tud_midi_n_read(0, 0, buffer, bufsize); }
static inline void tud_midi_read_flush (void) { tud_midi_n_read_flush(0, 0); }
static inline char tud_midi_peek (int pos) { return tud_midi_n_peek(0, 0, pos); }
static inline uint32_t tud_midi_write_char (char ch) { return tud_midi_n_write_char(0, ch); }
static inline uint32_t tud_midi_write (uint8_t jack_id, void const* buffer, uint32_t bufsize) { return tud_midi_n_write(0, jack_id, buffer, bufsize); }
static inline bool tud_midi_write_flush (void) { return tud_midi_n_write_flush(0); }
//--------------------------------------------------------------------+
// APPLICATION CALLBACK API (WEAK is optional)
//--------------------------------------------------------------------+
ATTR_WEAK void tud_midi_rx_cb(uint8_t itf);
//--------------------------------------------------------------------+
// USBD-CLASS DRIVER API
//--------------------------------------------------------------------+
#ifdef _TINY_USB_SOURCE_FILE_
void midid_init (void);
bool midid_open (uint8_t rhport, tusb_desc_interface_t const * p_interface_desc, uint16_t *p_length);
bool midid_control_request (uint8_t rhport, tusb_control_request_t const * p_request);
bool midid_control_request_complete (uint8_t rhport, tusb_control_request_t const * p_request);
bool midid_xfer_cb (uint8_t rhport, uint8_t edpt_addr, xfer_result_t result, uint32_t xferred_bytes);
void midid_reset (uint8_t rhport);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_MIDI_DEVICE_H_ */
/** @} */
/** @} */

13
src/device/usbd.c
View File

@ -128,6 +128,19 @@ static usbd_class_driver_t const usbd_class_drivers[] =
},
#endif
#if CFG_TUD_MIDI
{
.class_code = TUSB_CLASS_AUDIO,
.init = midid_init,
.open = midid_open,
.control_request = midid_control_request,
.control_request_complete = midid_control_request_complete,
.xfer_cb = midid_xfer_cb,
.sof = NULL,
.reset = midid_reset
},
#endif
#if CFG_TUD_CUSTOM_CLASS
{
.class_code = TUSB_CLASS_VENDOR_SPECIFIC,

5
src/tusb.h
View File

@ -89,6 +89,10 @@
#include "class/msc/msc_device.h"
#endif
#if CFG_TUD_MIDI
#include "class/midi/midi_device.h"
#endif
#if CFG_TUD_CUSTOM_CLASS
#include "class/custom/custom_device.h"
#endif
@ -128,4 +132,3 @@ static inline void tusb_task(void)
#endif
#endif /* _TUSB_H_ */