avrcp.h

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/*
 * Copyright (c) 2015-2016 Intel Corporation
 * Copyright (C) 2024 Xiaomi Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_BLUETOOTH_AVRCP_H_
#define ZEPHYR_INCLUDE_BLUETOOTH_AVRCP_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum __packed {
        BT_AVRCP_CTYPE_CONTROL = 0x0,
        BT_AVRCP_CTYPE_STATUS = 0x1,
        BT_AVRCP_CTYPE_SPECIFIC_INQUIRY = 0x2,
        BT_AVRCP_CTYPE_NOTIFY = 0x3,
        BT_AVRCP_CTYPE_GENERAL_INQUIRY = 0x4,
} bt_avrcp_ctype_t;
 
typedef enum __packed {
        BT_AVRCP_RSP_NOT_IMPLEMENTED = 0x8,
        BT_AVRCP_RSP_ACCEPTED = 0x9,
        BT_AVRCP_RSP_REJECTED = 0xa,
        BT_AVRCP_RSP_IN_TRANSITION = 0xb,
        BT_AVRCP_RSP_IMPLEMENTED = 0xc, 
        BT_AVRCP_RSP_STABLE = 0xc,      
        BT_AVRCP_RSP_CHANGED = 0xd,
        BT_AVRCP_RSP_INTERIM = 0xf,
} bt_avrcp_rsp_t;
 
typedef enum __packed {
        BT_AVRCP_OPID_SELECT = 0x00,
        BT_AVRCP_OPID_UP = 0x01,
        BT_AVRCP_OPID_DOWN = 0x02,
        BT_AVRCP_OPID_LEFT = 0x03,
        BT_AVRCP_OPID_RIGHT = 0x04,
        BT_AVRCP_OPID_RIGHT_UP = 0x05,
        BT_AVRCP_OPID_RIGHT_DOWN = 0x06,
        BT_AVRCP_OPID_LEFT_UP = 0x07,
        BT_AVRCP_OPID_LEFT_DOWN = 0x08,
        BT_AVRCP_OPID_ROOT_MENU = 0x09,
        BT_AVRCP_OPID_SETUP_MENU = 0x0a,
        BT_AVRCP_OPID_CONTENTS_MENU = 0x0b,
        BT_AVRCP_OPID_FAVORITE_MENU = 0x0c,
        BT_AVRCP_OPID_EXIT = 0x0d,
 
        BT_AVRCP_OPID_0 = 0x20,
        BT_AVRCP_OPID_1 = 0x21,
        BT_AVRCP_OPID_2 = 0x22,
        BT_AVRCP_OPID_3 = 0x23,
        BT_AVRCP_OPID_4 = 0x24,
        BT_AVRCP_OPID_5 = 0x25,
        BT_AVRCP_OPID_6 = 0x26,
        BT_AVRCP_OPID_7 = 0x27,
        BT_AVRCP_OPID_8 = 0x28,
        BT_AVRCP_OPID_9 = 0x29,
        BT_AVRCP_OPID_DOT = 0x2a,
        BT_AVRCP_OPID_ENTER = 0x2b,
        BT_AVRCP_OPID_CLEAR = 0x2c,
 
        BT_AVRCP_OPID_CHANNEL_UP = 0x30,
        BT_AVRCP_OPID_CHANNEL_DOWN = 0x31,
        BT_AVRCP_OPID_PREVIOUS_CHANNEL = 0x32,
        BT_AVRCP_OPID_SOUND_SELECT = 0x33,
        BT_AVRCP_OPID_INPUT_SELECT = 0x34,
        BT_AVRCP_OPID_DISPLAY_INFORMATION = 0x35,
        BT_AVRCP_OPID_HELP = 0x36,
        BT_AVRCP_OPID_PAGE_UP = 0x37,
        BT_AVRCP_OPID_PAGE_DOWN = 0x38,
 
        BT_AVRCP_OPID_POWER = 0x40,
        BT_AVRCP_OPID_VOLUME_UP = 0x41,
        BT_AVRCP_OPID_VOLUME_DOWN = 0x42,
        BT_AVRCP_OPID_MUTE = 0x43,
        BT_AVRCP_OPID_PLAY = 0x44,
        BT_AVRCP_OPID_STOP = 0x45,
        BT_AVRCP_OPID_PAUSE = 0x46,
        BT_AVRCP_OPID_RECORD = 0x47,
        BT_AVRCP_OPID_REWIND = 0x48,
        BT_AVRCP_OPID_FAST_FORWARD = 0x49,
        BT_AVRCP_OPID_EJECT = 0x4a,
        BT_AVRCP_OPID_FORWARD = 0x4b,
        BT_AVRCP_OPID_BACKWARD = 0x4c,
 
        BT_AVRCP_OPID_ANGLE = 0x50,
        BT_AVRCP_OPID_SUBPICTURE = 0x51,
 
        BT_AVRCP_OPID_F1 = 0x71,
        BT_AVRCP_OPID_F2 = 0x72,
        BT_AVRCP_OPID_F3 = 0x73,
        BT_AVRCP_OPID_F4 = 0x74,
        BT_AVRCP_OPID_F5 = 0x75,
        BT_AVRCP_OPID_VENDOR_UNIQUE = 0x7e,
} bt_avrcp_opid_t;
 
typedef enum __packed {
        BT_AVRCP_BUTTON_PRESSED = 0,
        BT_AVRCP_BUTTON_RELEASED = 1,
} bt_avrcp_button_state_t;
 
struct bt_avrcp;
 
struct bt_avrcp_unit_info_rsp {
        uint8_t unit_type;
        uint32_t company_id;
};
 
struct bt_avrcp_subunit_info_rsp {
        uint8_t subunit_type;
        uint8_t max_subunit_id;
        const uint8_t *extended_subunit_type; 
        const uint8_t *extended_subunit_id;   
};
 
struct bt_avrcp_passthrough_rsp {
        uint8_t response;     
        uint8_t operation_id; 
        uint8_t state;        
        uint8_t len;
        const uint8_t *payload;
};
 
struct bt_avrcp_cb {
        void (*connected)(struct bt_avrcp *avrcp);
 
        void (*disconnected)(struct bt_avrcp *avrcp);
 
        void (*unit_info_rsp)(struct bt_avrcp *avrcp, struct bt_avrcp_unit_info_rsp *rsp);
 
        void (*subunit_info_rsp)(struct bt_avrcp *avrcp, struct bt_avrcp_subunit_info_rsp *rsp);
 
        void (*passthrough_rsp)(struct bt_avrcp *avrcp, struct bt_avrcp_passthrough_rsp *rsp);
};
 
struct bt_avrcp *bt_avrcp_connect(struct bt_conn *conn);
 
int bt_avrcp_disconnect(struct bt_avrcp *avrcp);
 
int bt_avrcp_register_cb(const struct bt_avrcp_cb *cb);
 
int bt_avrcp_get_unit_info(struct bt_avrcp *avrcp);
 
int bt_avrcp_get_subunit_info(struct bt_avrcp *avrcp);
 
int bt_avrcp_passthrough(struct bt_avrcp *avrcp, bt_avrcp_opid_t operation_id,
                         bt_avrcp_button_state_t state, const uint8_t *payload, uint8_t len);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_BLUETOOTH_AVRCP_H_ */