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platform_hardware_libhardware/include/hardware/bt_rc.h
Sanket Agarwal 9d0d6700b1 Add API for AVRCP CT get_play_status_cmd 
Bug: b/31684931
Change-Id: I5e47e3b1ab30f457ee2581d02a384ffb76454a21
(cherry picked from commit de0f636db2035deff127fdd5f62ed2043650b270)
2016-11-01 19:59:36 +00:00

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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_INCLUDE_BT_RC_H
#define ANDROID_INCLUDE_BT_RC_H
__BEGIN_DECLS
/* Change this macro to use multiple RC */
#define BT_RC_NUM_APP 1
/* Macros */
#define BTRC_MAX_ATTR_STR_LEN (1 << 16)
#define BTRC_UID_SIZE 8
#define BTRC_MAX_APP_SETTINGS 8
#define BTRC_MAX_FOLDER_DEPTH 4
#define BTRC_MAX_APP_ATTR_SIZE 16
#define BTRC_MAX_ELEM_ATTR_SIZE 8
#define BTRC_FEATURE_BIT_MASK_SIZE 16
/* Macros for valid scopes in get_folder_items */
#define BTRC_SCOPE_PLAYER_LIST 0x00 /* Media Player List */
#define BTRC_SCOPE_FILE_SYSTEM 0x01 /* Virtual File System */
#define BTRC_SCOPE_SEARCH 0x02 /* Search */
#define BTRC_SCOPE_NOW_PLAYING 0x03 /* Now Playing */
/* Macros for supported character encoding */
#define BTRC_CHARSET_ID_UTF8 0x006A
/* Macros for item types */
#define BTRC_ITEM_PLAYER 0x01 /* Media Player */
#define BTRC_ITEM_FOLDER 0x02 /* Folder */
#define BTRC_ITEM_MEDIA 0x03 /* Media File */
/* Macros for media attribute IDs */
#define BTRC_MEDIA_ATTR_ID_INVALID -1
#define BTRC_MEDIA_ATTR_ID_TITLE 0x00000001
#define BTRC_MEDIA_ATTR_ID_ARTIST 0x00000002
#define BTRC_MEDIA_ATTR_ID_ALBUM 0x00000003
#define BTRC_MEDIA_ATTR_ID_TRACK_NUM 0x00000004
#define BTRC_MEDIA_ATTR_ID_NUM_TRACKS 0x00000005
#define BTRC_MEDIA_ATTR_ID_GENRE 0x00000006
#define BTRC_MEDIA_ATTR_ID_PLAYING_TIME 0x00000007 /* in miliseconds */
/* Macros for folder types */
#define BTRC_FOLDER_TYPE_MIXED 0x00
#define BTRC_FOLDER_TYPE_TITLES 0x01
#define BTRC_FOLDER_TYPE_ALBUMS 0x02
#define BTRC_FOLDER_TYPE_ARTISTS 0x03
#define BTRC_FOLDER_TYPE_GENRES 0x04
#define BTRC_FOLDER_TYPE_PLAYLISTS 0x05
#define BTRC_FOLDER_TYPE_YEARS 0x06
/* Macros for media types */
#define BTRC_MEDIA_TYPE_AUDIO 0x00 /* audio */
#define BTRC_MEDIA_TYPE_VIDEO 0x01 /* video */
/* Macros for num attributes */
#define BTRC_NUM_ATTR_NONE 0xFF /* No attributes required */
#define BTRC_NUM_ATTR_ALL 0X00 /* All attributes required */
#define BTRC_HANDLE_NONE 0xFF
typedef uint8_t btrc_uid_t[BTRC_UID_SIZE];
typedef enum {
BTRC_CONNECTION_STATE_DISCONNECTED = 0,
BTRC_CONNECTION_STATE_CONNECTED
} btrc_connection_state_t;
typedef enum {
BTRC_FEAT_NONE = 0x00, /* AVRCP 1.0 */
BTRC_FEAT_METADATA = 0x01, /* AVRCP 1.3 */
BTRC_FEAT_ABSOLUTE_VOLUME = 0x02, /* Supports TG role and volume sync */
BTRC_FEAT_BROWSE = 0x04, /* AVRCP 1.4 and up, with Browsing support */
} btrc_remote_features_t;
typedef enum {
BTRC_PLAYSTATE_STOPPED = 0x00, /* Stopped */
BTRC_PLAYSTATE_PLAYING = 0x01, /* Playing */
BTRC_PLAYSTATE_PAUSED = 0x02, /* Paused */
BTRC_PLAYSTATE_FWD_SEEK = 0x03, /* Fwd Seek*/
BTRC_PLAYSTATE_REV_SEEK = 0x04, /* Rev Seek*/
BTRC_PLAYSTATE_ERROR = 0xFF, /* Error */
} btrc_play_status_t;
typedef enum {
BTRC_EVT_PLAY_STATUS_CHANGED = 0x01,
BTRC_EVT_TRACK_CHANGE = 0x02,
BTRC_EVT_TRACK_REACHED_END = 0x03,
BTRC_EVT_TRACK_REACHED_START = 0x04,
BTRC_EVT_PLAY_POS_CHANGED = 0x05,
BTRC_EVT_APP_SETTINGS_CHANGED = 0x08,
BTRC_EVT_NOW_PLAYING_CONTENT_CHANGED = 0x09,
BTRC_EVT_AVAL_PLAYER_CHANGE = 0x0a,
BTRC_EVT_ADDR_PLAYER_CHANGE = 0x0b,
BTRC_EVT_UIDS_CHANGED = 0x0c,
BTRC_EVT_VOL_CHANGED = 0x0d,
} btrc_event_id_t;
typedef enum {
BTRC_NOTIFICATION_TYPE_INTERIM = 0,
BTRC_NOTIFICATION_TYPE_CHANGED = 1,
} btrc_notification_type_t;
typedef enum {
BTRC_PLAYER_ATTR_EQUALIZER = 0x01,
BTRC_PLAYER_ATTR_REPEAT = 0x02,
BTRC_PLAYER_ATTR_SHUFFLE = 0x03,
BTRC_PLAYER_ATTR_SCAN = 0x04,
} btrc_player_attr_t;
typedef enum {
BTRC_MEDIA_ATTR_TITLE = 0x01,
BTRC_MEDIA_ATTR_ARTIST = 0x02,
BTRC_MEDIA_ATTR_ALBUM = 0x03,
BTRC_MEDIA_ATTR_TRACK_NUM = 0x04,
BTRC_MEDIA_ATTR_NUM_TRACKS = 0x05,
BTRC_MEDIA_ATTR_GENRE = 0x06,
BTRC_MEDIA_ATTR_PLAYING_TIME = 0x07,
} btrc_media_attr_t;
typedef enum {
BTRC_PLAYER_VAL_OFF_REPEAT = 0x01,
BTRC_PLAYER_VAL_SINGLE_REPEAT = 0x02,
BTRC_PLAYER_VAL_ALL_REPEAT = 0x03,
BTRC_PLAYER_VAL_GROUP_REPEAT = 0x04
} btrc_player_repeat_val_t;
typedef enum {
BTRC_PLAYER_VAL_OFF_SHUFFLE = 0x01,
BTRC_PLAYER_VAL_ALL_SHUFFLE = 0x02,
BTRC_PLAYER_VAL_GROUP_SHUFFLE = 0x03
} btrc_player_shuffle_val_t;
typedef enum {
BTRC_STS_BAD_CMD = 0x00, /* Invalid command */
BTRC_STS_BAD_PARAM = 0x01, /* Invalid parameter */
BTRC_STS_NOT_FOUND = 0x02, /* Specified parameter is wrong or not found */
BTRC_STS_INTERNAL_ERR = 0x03, /* Internal Error */
BTRC_STS_NO_ERROR = 0x04, /* Operation Success */
BTRC_STS_UID_CHANGED = 0x05, /* UIDs changed */
BTRC_STS_RESERVED = 0x06, /* Reserved */
BTRC_STS_INV_DIRN = 0x07, /* Invalid direction */
BTRC_STS_INV_DIRECTORY = 0x08, /* Invalid directory */
BTRC_STS_INV_ITEM = 0x09, /* Invalid Item */
BTRC_STS_INV_SCOPE = 0x0a, /* Invalid scope */
BTRC_STS_INV_RANGE = 0x0b, /* Invalid range */
BTRC_STS_DIRECTORY = 0x0c, /* UID is a directory */
BTRC_STS_MEDIA_IN_USE = 0x0d, /* Media in use */
BTRC_STS_PLAY_LIST_FULL = 0x0e, /* Playing list full */
BTRC_STS_SRCH_NOT_SPRTD = 0x0f, /* Search not supported */
BTRC_STS_SRCH_IN_PROG = 0x10, /* Search in progress */
BTRC_STS_INV_PLAYER = 0x11, /* Invalid player */
BTRC_STS_PLAY_NOT_BROW = 0x12, /* Player not browsable */
BTRC_STS_PLAY_NOT_ADDR = 0x13, /* Player not addressed */
BTRC_STS_INV_RESULTS = 0x14, /* Invalid results */
BTRC_STS_NO_AVBL_PLAY = 0x15, /* No available players */
BTRC_STS_ADDR_PLAY_CHGD = 0x16, /* Addressed player changed */
} btrc_status_t;
typedef struct {
uint16_t player_id;
uint16_t uid_counter;
} btrc_addr_player_changed_t;
typedef struct {
uint8_t num_attr;
uint8_t attr_ids[BTRC_MAX_APP_SETTINGS];
uint8_t attr_values[BTRC_MAX_APP_SETTINGS];
} btrc_player_settings_t;
typedef struct {
uint8_t val;
uint16_t charset_id;
uint16_t str_len;
uint8_t *p_str;
} btrc_player_app_ext_attr_val_t;
typedef struct {
uint8_t attr_id;
uint16_t charset_id;
uint16_t str_len;
uint8_t *p_str;
uint8_t num_val;
btrc_player_app_ext_attr_val_t ext_attr_val[BTRC_MAX_APP_ATTR_SIZE];
} btrc_player_app_ext_attr_t;
typedef struct {
uint8_t attr_id;
uint8_t num_val;
uint8_t attr_val[BTRC_MAX_APP_ATTR_SIZE];
} btrc_player_app_attr_t;
typedef struct {
uint32_t start_item;
uint32_t end_item;
uint32_t size;
uint32_t attrs[BTRC_MAX_ELEM_ATTR_SIZE];
uint8_t attr_count;
} btrc_getfolderitem_t;
typedef struct {
uint16_t type;
uint16_t uid_counter;
} btrc_uids_changed_t;
typedef struct {
uint16_t type;
} btrc_now_playing_changed_t;
typedef union
{
btrc_play_status_t play_status;
btrc_uid_t track; /* queue position in NowPlaying */
uint32_t song_pos;
uint16_t uid_counter;
btrc_player_settings_t player_setting;
btrc_addr_player_changed_t addr_player_changed;
btrc_uids_changed_t uids_changed;
btrc_now_playing_changed_t now_playing_changed;
} btrc_register_notification_t;
typedef struct {
uint8_t id; /* can be attr_id or value_id */
uint8_t text[BTRC_MAX_ATTR_STR_LEN];
} btrc_player_setting_text_t;
typedef struct {
uint32_t attr_id;
uint8_t text[BTRC_MAX_ATTR_STR_LEN];
} btrc_element_attr_val_t;
typedef struct {
uint16_t player_id;
uint8_t major_type;
uint32_t sub_type;
uint8_t play_status;
uint8_t features[BTRC_FEATURE_BIT_MASK_SIZE];
uint16_t charset_id;
uint8_t name[BTRC_MAX_ATTR_STR_LEN];
} btrc_item_player_t;
typedef struct {
uint8_t uid[BTRC_UID_SIZE];
uint8_t type;
uint8_t playable;
uint16_t charset_id;
uint8_t name[BTRC_MAX_ATTR_STR_LEN];
} btrc_item_folder_t;
typedef struct {
uint8_t uid[BTRC_UID_SIZE];
uint8_t type;
uint16_t charset_id;
uint8_t name[BTRC_MAX_ATTR_STR_LEN];
int num_attrs;
btrc_element_attr_val_t* p_attrs;
} btrc_item_media_t;
typedef struct {
uint8_t item_type;
union
{
btrc_item_player_t player;
btrc_item_folder_t folder;
btrc_item_media_t media;
};
} btrc_folder_items_t;
typedef struct {
uint16_t str_len;
uint8_t p_str[BTRC_MAX_ATTR_STR_LEN];
} btrc_br_folder_name_t;
/** Callback for the controller's supported feautres */
typedef void (* btrc_remote_features_callback)(bt_bdaddr_t *bd_addr,
btrc_remote_features_t features);
/** Callback for play status request */
typedef void (* btrc_get_play_status_callback)(bt_bdaddr_t *bd_addr);
/** Callback for list player application attributes (Shuffle, Repeat,...) */
typedef void (* btrc_list_player_app_attr_callback)(bt_bdaddr_t *bd_addr);
/** Callback for list player application attributes (Shuffle, Repeat,...) */
typedef void (* btrc_list_player_app_values_callback)(btrc_player_attr_t attr_id,
bt_bdaddr_t *bd_addr);
/** Callback for getting the current player application settings value
** num_attr: specifies the number of attribute ids contained in p_attrs
*/
typedef void (* btrc_get_player_app_value_callback) (uint8_t num_attr,
btrc_player_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
/** Callback for getting the player application settings attributes' text
** num_attr: specifies the number of attribute ids contained in p_attrs
*/
typedef void (* btrc_get_player_app_attrs_text_callback) (uint8_t num_attr,
btrc_player_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
/** Callback for getting the player application settings values' text
** num_attr: specifies the number of value ids contained in p_vals
*/
typedef void (* btrc_get_player_app_values_text_callback) (uint8_t attr_id, uint8_t num_val,
uint8_t *p_vals, bt_bdaddr_t *bd_addr);
/** Callback for setting the player application settings values */
typedef void (* btrc_set_player_app_value_callback) (btrc_player_settings_t *p_vals,
bt_bdaddr_t *bd_addr);
/** Callback to fetch the get element attributes of the current song
** num_attr: specifies the number of attributes requested in p_attrs
*/
typedef void (* btrc_get_element_attr_callback) (uint8_t num_attr, btrc_media_attr_t *p_attrs,
bt_bdaddr_t *bd_addr);
/** Callback for register notification (Play state change/track change/...)
** param: Is only valid if event_id is BTRC_EVT_PLAY_POS_CHANGED
*/
typedef void (* btrc_register_notification_callback) (btrc_event_id_t event_id, uint32_t param,
bt_bdaddr_t *bd_addr);
/* AVRCP 1.4 Enhancements */
/** Callback for volume change on CT
** volume: Current volume setting on the CT (0-127)
*/
typedef void (* btrc_volume_change_callback) (uint8_t volume, uint8_t ctype, bt_bdaddr_t *bd_addr);
/** Callback for passthrough commands */
typedef void (* btrc_passthrough_cmd_callback) (int id, int key_state, bt_bdaddr_t *bd_addr);
/** Callback for set addressed player response on TG **/
typedef void (* btrc_set_addressed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
/** Callback for set browsed player response on TG **/
typedef void (* btrc_set_browsed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
/** Callback for get folder items on TG
** num_attr: specifies the number of attributes requested in p_attr_ids
*/
typedef void (* btrc_get_folder_items_callback) (uint8_t scope, uint32_t start_item,
uint32_t end_item, uint8_t num_attr, uint32_t *p_attr_ids, bt_bdaddr_t *bd_addr);
/** Callback for changing browsed path on TG **/
typedef void (* btrc_change_path_callback) (uint8_t direction,
uint8_t* folder_uid, bt_bdaddr_t *bd_addr);
/** Callback to fetch the get item attributes of the media item
** num_attr: specifies the number of attributes requested in p_attrs
*/
typedef void (* btrc_get_item_attr_callback) (uint8_t scope, uint8_t* uid, uint16_t uid_counter,
uint8_t num_attr, btrc_media_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
/** Callback for play request for the media item indicated by an identifier */
typedef void (* btrc_play_item_callback) (uint8_t scope,
uint16_t uid_counter, uint8_t* uid, bt_bdaddr_t *bd_addr);
/** Callback to fetch total number of items from a folder **/
typedef void (* btrc_get_total_num_of_items_callback) (uint8_t scope, bt_bdaddr_t *bd_addr);
/** Callback for conducting recursive search on a current browsed path for a specified string */
typedef void (* btrc_search_callback) (uint16_t charset_id,
uint16_t str_len, uint8_t* p_str, bt_bdaddr_t *bd_addr);
/** Callback to add a specified media item indicated by an identifier to now playing queue. */
typedef void (* btrc_add_to_now_playing_callback) (uint8_t scope,
uint8_t* uid, uint16_t uid_counter, bt_bdaddr_t *bd_addr);
/** Callback for set addressed player response on TG **/
typedef void (* btrc_set_addressed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
/** Callback for set browsed player response on TG **/
typedef void (* btrc_set_browsed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
/** Callback for get folder items on TG
** num_attr: specifies the number of attributes requested in p_attr_ids
*/
typedef void (* btrc_get_folder_items_callback) (uint8_t scope, uint32_t start_item,
uint32_t end_item, uint8_t num_attr, uint32_t *p_attr_ids, bt_bdaddr_t *bd_addr);
/** Callback for changing browsed path on TG **/
typedef void (* btrc_change_path_callback) (uint8_t direction,
uint8_t* folder_uid, bt_bdaddr_t *bd_addr);
/** Callback to fetch the get item attributes of the media item
** num_attr: specifies the number of attributes requested in p_attrs
*/
typedef void (* btrc_get_item_attr_callback) (uint8_t scope, uint8_t* uid, uint16_t uid_counter,
uint8_t num_attr, btrc_media_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
/** Callback for play request for the media item indicated by an identifier */
typedef void (* btrc_play_item_callback) (uint8_t scope,
uint16_t uid_counter, uint8_t* uid, bt_bdaddr_t *bd_addr);
/** Callback to fetch total number of items from a folder **/
typedef void (* btrc_get_total_num_of_items_callback) (uint8_t scope, bt_bdaddr_t *bd_addr);
/** Callback for conducting recursive search on a current browsed path for a specified string */
typedef void (* btrc_search_callback) (uint16_t charset_id,
uint16_t str_len, uint8_t* p_str, bt_bdaddr_t *bd_addr);
/** Callback to add a specified media item indicated by an identifier to now playing queue. */
typedef void (* btrc_add_to_now_playing_callback) (uint8_t scope,
uint8_t* uid, uint16_t uid_counter, bt_bdaddr_t *bd_addr);
/** Callback for set addressed player response on TG **/
typedef void (* btrc_set_addressed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
/** Callback for set browsed player response on TG **/
typedef void (* btrc_set_browsed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
/** Callback for get folder items on TG
** num_attr: specifies the number of attributes requested in p_attr_ids
*/
typedef void (* btrc_get_folder_items_callback) (uint8_t scope, uint32_t start_item,
uint32_t end_item, uint8_t num_attr, uint32_t *p_attr_ids, bt_bdaddr_t *bd_addr);
/** Callback for changing browsed path on TG **/
typedef void (* btrc_change_path_callback) (uint8_t direction,
uint8_t* folder_uid, bt_bdaddr_t *bd_addr);
/** Callback to fetch the get item attributes of the media item
** num_attr: specifies the number of attributes requested in p_attrs
*/
typedef void (* btrc_get_item_attr_callback) (uint8_t scope, uint8_t* uid, uint16_t uid_counter,
uint8_t num_attr, btrc_media_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
/** Callback for play request for the media item indicated by an identifier */
typedef void (* btrc_play_item_callback) (uint8_t scope,
uint16_t uid_counter, uint8_t* uid, bt_bdaddr_t *bd_addr);
/** Callback to fetch total number of items from a folder **/
typedef void (* btrc_get_total_num_of_items_callback) (uint8_t scope, bt_bdaddr_t *bd_addr);
/** Callback for conducting recursive search on a current browsed path for a specified string */
typedef void (* btrc_search_callback) (uint16_t charset_id,
uint16_t str_len, uint8_t* p_str, bt_bdaddr_t *bd_addr);
/** Callback to add a specified media item indicated by an identifier to now playing queue. */
typedef void (* btrc_add_to_now_playing_callback) (uint8_t scope,
uint8_t* uid, uint16_t uid_counter, bt_bdaddr_t *bd_addr);
/** BT-RC Target callback structure. */
typedef struct {
/** set to sizeof(BtRcCallbacks) */
size_t size;
btrc_remote_features_callback remote_features_cb;
btrc_get_play_status_callback get_play_status_cb;
btrc_list_player_app_attr_callback list_player_app_attr_cb;
btrc_list_player_app_values_callback list_player_app_values_cb;
btrc_get_player_app_value_callback get_player_app_value_cb;
btrc_get_player_app_attrs_text_callback get_player_app_attrs_text_cb;
btrc_get_player_app_values_text_callback get_player_app_values_text_cb;
btrc_set_player_app_value_callback set_player_app_value_cb;
btrc_get_element_attr_callback get_element_attr_cb;
btrc_register_notification_callback register_notification_cb;
btrc_volume_change_callback volume_change_cb;
btrc_passthrough_cmd_callback passthrough_cmd_cb;
btrc_set_addressed_player_callback set_addressed_player_cb;
btrc_set_browsed_player_callback set_browsed_player_cb;
btrc_get_folder_items_callback get_folder_items_cb;
btrc_change_path_callback change_path_cb;
btrc_get_item_attr_callback get_item_attr_cb;
btrc_play_item_callback play_item_cb;
btrc_get_total_num_of_items_callback get_total_num_of_items_cb;
btrc_search_callback search_cb;
btrc_add_to_now_playing_callback add_to_now_playing_cb;
} btrc_callbacks_t;
/** Represents the standard BT-RC AVRCP Target interface. */
typedef struct {
/** set to sizeof(BtRcInterface) */
size_t size;
/**
* Register the BtRc callbacks
*/
bt_status_t (*init)( btrc_callbacks_t* callbacks );
/** Respose to GetPlayStatus request. Contains the current
** 1. Play status
** 2. Song duration/length
** 3. Song position
*/
bt_status_t (*get_play_status_rsp)( bt_bdaddr_t *bd_addr, btrc_play_status_t play_status,
uint32_t song_len, uint32_t song_pos);
/** Lists the support player application attributes (Shuffle/Repeat/...)
** num_attr: Specifies the number of attributes contained in the pointer p_attrs
*/
bt_status_t (*list_player_app_attr_rsp)( bt_bdaddr_t *bd_addr, int num_attr,
btrc_player_attr_t *p_attrs);
/** Lists the support player application attributes (Shuffle Off/On/Group)
** num_val: Specifies the number of values contained in the pointer p_vals
*/
bt_status_t (*list_player_app_value_rsp)( bt_bdaddr_t *bd_addr, int num_val, uint8_t *p_vals);
/** Returns the current application attribute values for each of the specified attr_id */
bt_status_t (*get_player_app_value_rsp)( bt_bdaddr_t *bd_addr, btrc_player_settings_t *p_vals);
/** Returns the application attributes text ("Shuffle"/"Repeat"/...)
** num_attr: Specifies the number of attributes' text contained in the pointer p_attrs
*/
bt_status_t (*get_player_app_attr_text_rsp)( bt_bdaddr_t *bd_addr, int num_attr,
btrc_player_setting_text_t *p_attrs);
/** Returns the application attributes text ("Shuffle"/"Repeat"/...)
** num_attr: Specifies the number of attribute values' text contained in the pointer p_vals
*/
bt_status_t (*get_player_app_value_text_rsp)( bt_bdaddr_t *bd_addr, int num_val,
btrc_player_setting_text_t *p_vals);
/** Returns the current songs' element attributes text ("Title"/"Album"/"Artist")
** num_attr: Specifies the number of attributes' text contained in the pointer p_attrs
*/
bt_status_t (*get_element_attr_rsp)( bt_bdaddr_t *bd_addr, uint8_t num_attr,
btrc_element_attr_val_t *p_attrs);
/** Response to set player attribute request ("Shuffle"/"Repeat")
** rsp_status: Status of setting the player attributes for the current media player
*/
bt_status_t (*set_player_app_value_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
/* Response to the register notification request (Play state change/track change/...).
** event_id: Refers to the event_id this notification change corresponds too
** type: Response type - interim/changed
** p_params: Based on the event_id, this parameter should be populated
*/
bt_status_t (*register_notification_rsp)(btrc_event_id_t event_id,
btrc_notification_type_t type,
btrc_register_notification_t *p_param);
/* AVRCP 1.4 enhancements */
/**Send current volume setting to remote side. Support limited to SetAbsoluteVolume
** This can be enhanced to support Relative Volume (AVRCP 1.0).
** With RelateVolume, we will send VOLUME_UP/VOLUME_DOWN opposed to absolute volume level
** volume: Should be in the range 0-127. bit7 is reseved and cannot be set
*/
bt_status_t (*set_volume)(uint8_t volume);
/* Set addressed player response from TG to CT */
bt_status_t (*set_addressed_player_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
/* Set browsed player response from TG to CT */
bt_status_t (*set_browsed_player_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
uint32_t num_items, uint16_t charset_id, uint8_t folder_depth,
btrc_br_folder_name_t *p_folders);
/* Get folder item list response from TG to CT */
bt_status_t (*get_folder_items_list_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
uint16_t uid_counter, uint8_t num_items, btrc_folder_items_t *p_items);
/* Change path response from TG to CT */
bt_status_t (*change_path_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
uint32_t num_items);
/** Returns the element's attributes num_attr: Specifies the number of attributes' text
* contained in the pointer p_attrs
*/
bt_status_t (*get_item_attr_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
uint8_t num_attr, btrc_element_attr_val_t *p_attrs);
/* play media item response from TG to CT */
bt_status_t (*play_item_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
/* get total number of items response from TG to CT*/
bt_status_t (*get_total_num_of_items_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
uint32_t uid_counter, uint32_t num_items);
/* Search VFS response from TG to CT */
bt_status_t (*search_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status, uint32_t uid_counter,
uint32_t num_items);
/* add_to_now playing list response from TG to CT */
bt_status_t (*add_to_now_playing_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
/** Closes the interface. */
void (*cleanup)( void );
} btrc_interface_t;
typedef void (* btrc_passthrough_rsp_callback) (bt_bdaddr_t *bd_addr, int id, int key_state);
typedef void (* btrc_groupnavigation_rsp_callback) (int id, int key_state);
typedef void (* btrc_connection_state_callback) (
bool rc_connect, bool bt_connect, bt_bdaddr_t *bd_addr);
typedef void (* btrc_ctrl_getrcfeatures_callback) (bt_bdaddr_t *bd_addr, int features);
typedef void (* btrc_ctrl_setabsvol_cmd_callback) (bt_bdaddr_t *bd_addr, uint8_t abs_vol, uint8_t label);
typedef void (* btrc_ctrl_registernotification_abs_vol_callback) (bt_bdaddr_t *bd_addr, uint8_t label);
typedef void (* btrc_ctrl_setplayerapplicationsetting_rsp_callback) (bt_bdaddr_t *bd_addr,
uint8_t accepted);
typedef void (* btrc_ctrl_playerapplicationsetting_callback)(bt_bdaddr_t *bd_addr,
uint8_t num_attr,
btrc_player_app_attr_t *app_attrs,
uint8_t num_ext_attr,
btrc_player_app_ext_attr_t *ext_attrs);
typedef void (* btrc_ctrl_playerapplicationsetting_changed_callback)(bt_bdaddr_t *bd_addr,
btrc_player_settings_t *p_vals);
typedef void (* btrc_ctrl_track_changed_callback)(bt_bdaddr_t *bd_addr, uint8_t num_attr,
btrc_element_attr_val_t *p_attrs);
typedef void (* btrc_ctrl_play_position_changed_callback)(bt_bdaddr_t *bd_addr,
uint32_t song_len, uint32_t song_pos);
typedef void (* btrc_ctrl_play_status_changed_callback)(bt_bdaddr_t *bd_addr,
btrc_play_status_t play_status);
typedef void (* btrc_ctrl_get_folder_items_callback )(bt_bdaddr_t *bd_addr,
btrc_status_t status,
const btrc_folder_items_t *folder_items,
uint8_t count);
typedef void (* btrc_ctrl_change_path_callback)(bt_bdaddr_t *bd_addr, uint8_t count);
typedef void (* btrc_ctrl_set_browsed_player_callback )(
bt_bdaddr_t *bd_addr, uint8_t num_items, uint8_t depth);
typedef void (* btrc_ctrl_set_addressed_player_callback)(bt_bdaddr_t *bd_addr, uint8_t status);
/** BT-RC Controller callback structure. */
typedef struct {
/** set to sizeof(BtRcCallbacks) */
size_t size;
btrc_passthrough_rsp_callback passthrough_rsp_cb;
btrc_groupnavigation_rsp_callback groupnavigation_rsp_cb;
btrc_connection_state_callback connection_state_cb;
btrc_ctrl_getrcfeatures_callback getrcfeatures_cb;
btrc_ctrl_setplayerapplicationsetting_rsp_callback setplayerappsetting_rsp_cb;
btrc_ctrl_playerapplicationsetting_callback playerapplicationsetting_cb;
btrc_ctrl_playerapplicationsetting_changed_callback playerapplicationsetting_changed_cb;
btrc_ctrl_setabsvol_cmd_callback setabsvol_cmd_cb;
btrc_ctrl_registernotification_abs_vol_callback registernotification_absvol_cb;
btrc_ctrl_track_changed_callback track_changed_cb;
btrc_ctrl_play_position_changed_callback play_position_changed_cb;
btrc_ctrl_play_status_changed_callback play_status_changed_cb;
btrc_ctrl_get_folder_items_callback get_folder_items_cb;
btrc_ctrl_change_path_callback change_folder_path_cb;
btrc_ctrl_set_browsed_player_callback set_browsed_player_cb;
btrc_ctrl_set_addressed_player_callback set_addressed_player_cb;
} btrc_ctrl_callbacks_t;
/** Represents the standard BT-RC AVRCP Controller interface. */
typedef struct {
/** set to sizeof(BtRcInterface) */
size_t size;
/**
* Register the BtRc callbacks
*/
bt_status_t (*init)( btrc_ctrl_callbacks_t* callbacks );
/** send pass through command to target */
bt_status_t (*send_pass_through_cmd) (bt_bdaddr_t *bd_addr, uint8_t key_code,
uint8_t key_state );
/** send group navigation command to target */
bt_status_t (*send_group_navigation_cmd) (bt_bdaddr_t *bd_addr, uint8_t key_code,
uint8_t key_state );
/** send command to set player applicaiton setting attributes to target */
bt_status_t (*set_player_app_setting_cmd) (bt_bdaddr_t *bd_addr, uint8_t num_attrib,
uint8_t* attrib_ids, uint8_t* attrib_vals);
/** send command to play a particular item */
bt_status_t (*play_item_cmd) (
bt_bdaddr_t *bd_addr, uint8_t scope, uint8_t *uid, uint16_t uid_counter);
/** get the playback state */
bt_status_t (*get_playback_state_cmd) (bt_bdaddr_t *bd_addr);
/** get the now playing list */
bt_status_t (*get_now_playing_list_cmd) (bt_bdaddr_t *bd_addr, uint8_t start, uint8_t items);
/** get the folder list */
bt_status_t (*get_folder_list_cmd) (bt_bdaddr_t *bd_addr, uint8_t start, uint8_t items);
/** get the folder list */
bt_status_t (*get_player_list_cmd) (bt_bdaddr_t *bd_addr, uint8_t start, uint8_t items);
/** get the folder list */
bt_status_t (*change_folder_path_cmd) (bt_bdaddr_t *bd_addr, uint8_t direction, uint8_t * uid);
/** set browsed player */
bt_status_t (*set_browsed_player_cmd) (bt_bdaddr_t *bd_addr, uint16_t player_id);
/** set addressed player */
bt_status_t (*set_addressed_player_cmd) (bt_bdaddr_t *bd_addr, uint16_t player_id);
/** send rsp to set_abs_vol received from target */
bt_status_t (*set_volume_rsp) (bt_bdaddr_t *bd_addr, uint8_t abs_vol, uint8_t label);
/** send notificaiton rsp for abs vol to target */
bt_status_t (*register_abs_vol_rsp) (bt_bdaddr_t *bd_addr, btrc_notification_type_t rsp_type,
uint8_t abs_vol, uint8_t label);
/** Closes the interface. */
void (*cleanup)( void );
} btrc_ctrl_interface_t;
__END_DECLS
#endif /* ANDROID_INCLUDE_BT_RC_H */
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