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/*
* The MIT License (MIT)
*
* Copyright (c) 2025 Ennebi Elettronica (https://ennebielettronica.com)
*
* 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 IN0
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#ifndef TUSB_MTP_DEVICE_H_
#define TUSB_MTP_DEVICE_H_
#include "common/tusb_common.h"
#include "mtp.h"
#if (CFG_TUD_ENABLED && CFG_TUD_MTP)
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
uint8_t idx; // mtp instance
const mtp_container_command_t* command_container;
mtp_container_info_t io_container;
tusb_xfer_result_t xfer_result;
uint32_t total_xferred_bytes; // number of bytes transferred so far in this phase
} tud_mtp_cb_data_t;
// Number of supported operations, events, device properties, capture formats, playback formats
// and max number of characters for strings manufacturer, model, device_version, serial_number
#define MTP_DEVICE_INFO_STRUCT(_extension_nchars, _op_count, _event_count, _devprop_count, _capture_count, _playback_count) \
struct TU_ATTR_PACKED { \
uint16_t standard_version; \
uint32_t mtp_vendor_extension_id; \
uint16_t mtp_version; \
mtp_string_t(_extension_nchars) mtp_extensions; \
uint16_t functional_mode; \
mtp_auint16_t(_op_count) supported_operations; \
mtp_auint16_t(_event_count) supported_events; \
mtp_auint16_t(_devprop_count) supported_device_properties; \
mtp_auint16_t(_capture_count) capture_formats; \
mtp_auint16_t(_playback_count) playback_formats; \
/* string fields will be added using append function */ \
}
typedef MTP_DEVICE_INFO_STRUCT(
sizeof(CFG_TUD_MTP_DEVICEINFO_EXTENSIONS), TU_ARGS_NUM(CFG_TUD_MTP_DEVICEINFO_SUPPORTED_OPERATIONS),
TU_ARGS_NUM(CFG_TUD_MTP_DEVICEINFO_SUPPORTED_EVENTS), TU_ARGS_NUM(CFG_TUD_MTP_DEVICEINFO_SUPPORTED_DEVICE_PROPERTIES),
TU_ARGS_NUM(CFG_TUD_MTP_DEVICEINFO_CAPTURE_FORMATS), TU_ARGS_NUM(CFG_TUD_MTP_DEVICEINFO_PLAYBACK_FORMATS)
) tud_mtp_device_info_t;
//--------------------------------------------------------------------+
// Application API
//--------------------------------------------------------------------+
// check if mtp interface is mounted
bool tud_mtp_mounted(void);
// send data phase
bool tud_mtp_data_send(mtp_container_info_t* p_container);
// receive data phase
bool tud_mtp_data_receive(mtp_container_info_t* p_container);
// send response
bool tud_mtp_response_send(mtp_container_info_t* p_container);
bool tud_mtp_event_send(mtp_event_t* event);
//--------------------------------------------------------------------+
// Control request Callbacks
//--------------------------------------------------------------------+
// bool tud_mtp_control_xfer_cb(uint8_t idx, uint8_t stage, tusb_control_request_t const *p_request);
//--------------------------------------------------------------------+
// Bulk only protocol Callbacks
//--------------------------------------------------------------------+
/* Invoked when new command is received. Application fill the cb_data->reply with either DATA or RESPONSE and call
* tud_mtp_data_send() or tud_mtp_response_send(). Return negative to stall the endpoints
*/
int32_t tud_mtp_command_received_cb(tud_mtp_cb_data_t * cb_data);
// Invoked when a data packet is transferred, and more data is expected
int32_t tud_mtp_data_xfer_cb(tud_mtp_cb_data_t* cb_data);
// Invoked when all bytes in DATA phase is complete. A response packet is expected
int32_t tud_mtp_data_complete_cb(tud_mtp_cb_data_t* cb_data);
// Invoked when response phase is complete
int32_t tud_mtp_response_complete_cb(tud_mtp_cb_data_t* cb_data);
//--------------------------------------------------------------------+
// Internal Class Driver API
//--------------------------------------------------------------------+
void mtpd_init (void);
bool mtpd_deinit (void);
void mtpd_reset (uint8_t rhport);
uint16_t mtpd_open (uint8_t rhport, tusb_desc_interface_t const *itf_desc, uint16_t max_len);
bool mtpd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const *p_request);
bool mtpd_xfer_cb (uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
#ifdef __cplusplus
}
#endif
#endif
#endif
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