1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_INCLUDE_BT_RC_H 18 #define ANDROID_INCLUDE_BT_RC_H 19 20 __BEGIN_DECLS 21 22 /* Change this macro to use multiple RC */ 23 #define BT_RC_NUM_APP 6 24 25 /* Macros */ 26 #define BTRC_MAX_ATTR_STR_LEN (1 << 16) 27 #define BTRC_UID_SIZE 8 28 #define BTRC_MAX_APP_SETTINGS 8 29 #define BTRC_MAX_FOLDER_DEPTH 4 30 #define BTRC_MAX_APP_ATTR_SIZE 16 31 #define BTRC_MAX_ELEM_ATTR_SIZE 8 32 #define BTRC_FEATURE_BIT_MASK_SIZE 16 33 34 /* Macros for valid scopes in get_folder_items */ 35 #define BTRC_SCOPE_PLAYER_LIST 0x00 /* Media Player List */ 36 #define BTRC_SCOPE_FILE_SYSTEM 0x01 /* Virtual File System */ 37 #define BTRC_SCOPE_SEARCH 0x02 /* Search */ 38 #define BTRC_SCOPE_NOW_PLAYING 0x03 /* Now Playing */ 39 40 /* Macros for supported character encoding */ 41 #define BTRC_CHARSET_ID_UTF8 0x006A 42 43 /* Macros for item types */ 44 #define BTRC_ITEM_PLAYER 0x01 /* Media Player */ 45 #define BTRC_ITEM_FOLDER 0x02 /* Folder */ 46 #define BTRC_ITEM_MEDIA 0x03 /* Media File */ 47 48 /* Macros for media attribute IDs */ 49 #define BTRC_MEDIA_ATTR_ID_INVALID -1 50 #define BTRC_MEDIA_ATTR_ID_TITLE 0x00000001 51 #define BTRC_MEDIA_ATTR_ID_ARTIST 0x00000002 52 #define BTRC_MEDIA_ATTR_ID_ALBUM 0x00000003 53 #define BTRC_MEDIA_ATTR_ID_TRACK_NUM 0x00000004 54 #define BTRC_MEDIA_ATTR_ID_NUM_TRACKS 0x00000005 55 #define BTRC_MEDIA_ATTR_ID_GENRE 0x00000006 56 #define BTRC_MEDIA_ATTR_ID_PLAYING_TIME 0x00000007 /* in miliseconds */ 57 58 /* Macros for folder types */ 59 #define BTRC_FOLDER_TYPE_MIXED 0x00 60 #define BTRC_FOLDER_TYPE_TITLES 0x01 61 #define BTRC_FOLDER_TYPE_ALBUMS 0x02 62 #define BTRC_FOLDER_TYPE_ARTISTS 0x03 63 #define BTRC_FOLDER_TYPE_GENRES 0x04 64 #define BTRC_FOLDER_TYPE_PLAYLISTS 0x05 65 #define BTRC_FOLDER_TYPE_YEARS 0x06 66 67 /* Macros for media types */ 68 #define BTRC_MEDIA_TYPE_AUDIO 0x00 /* audio */ 69 #define BTRC_MEDIA_TYPE_VIDEO 0x01 /* video */ 70 71 /* Macros for num attributes */ 72 #define BTRC_NUM_ATTR_NONE 0xFF /* No attributes required */ 73 #define BTRC_NUM_ATTR_ALL 0X00 /* All attributes required */ 74 75 #define BTRC_HANDLE_NONE 0xFF 76 77 typedef uint8_t btrc_uid_t[BTRC_UID_SIZE]; 78 79 typedef enum { 80 BTRC_CONNECTION_STATE_DISCONNECTED = 0, 81 BTRC_CONNECTION_STATE_CONNECTED 82 } btrc_connection_state_t; 83 84 typedef enum { 85 BTRC_FEAT_NONE = 0x00, /* AVRCP 1.0 */ 86 BTRC_FEAT_METADATA = 0x01, /* AVRCP 1.3 */ 87 BTRC_FEAT_ABSOLUTE_VOLUME = 0x02, /* Supports TG role and volume sync */ 88 BTRC_FEAT_BROWSE = 0x04, /* AVRCP 1.4 and up, with Browsing support */ 89 } btrc_remote_features_t; 90 91 typedef enum { 92 BTRC_PLAYSTATE_STOPPED = 0x00, /* Stopped */ 93 BTRC_PLAYSTATE_PLAYING = 0x01, /* Playing */ 94 BTRC_PLAYSTATE_PAUSED = 0x02, /* Paused */ 95 BTRC_PLAYSTATE_FWD_SEEK = 0x03, /* Fwd Seek*/ 96 BTRC_PLAYSTATE_REV_SEEK = 0x04, /* Rev Seek*/ 97 BTRC_PLAYSTATE_ERROR = 0xFF, /* Error */ 98 } btrc_play_status_t; 99 100 typedef enum { 101 BTRC_EVT_PLAY_STATUS_CHANGED = 0x01, 102 BTRC_EVT_TRACK_CHANGE = 0x02, 103 BTRC_EVT_TRACK_REACHED_END = 0x03, 104 BTRC_EVT_TRACK_REACHED_START = 0x04, 105 BTRC_EVT_PLAY_POS_CHANGED = 0x05, 106 BTRC_EVT_APP_SETTINGS_CHANGED = 0x08, 107 BTRC_EVT_NOW_PLAYING_CONTENT_CHANGED = 0x09, 108 BTRC_EVT_AVAL_PLAYER_CHANGE = 0x0a, 109 BTRC_EVT_ADDR_PLAYER_CHANGE = 0x0b, 110 BTRC_EVT_UIDS_CHANGED = 0x0c, 111 BTRC_EVT_VOL_CHANGED = 0x0d, 112 } btrc_event_id_t; 113 114 typedef enum { 115 BTRC_NOTIFICATION_TYPE_INTERIM = 0, 116 BTRC_NOTIFICATION_TYPE_CHANGED = 1, 117 } btrc_notification_type_t; 118 119 typedef enum { 120 BTRC_PLAYER_ATTR_EQUALIZER = 0x01, 121 BTRC_PLAYER_ATTR_REPEAT = 0x02, 122 BTRC_PLAYER_ATTR_SHUFFLE = 0x03, 123 BTRC_PLAYER_ATTR_SCAN = 0x04, 124 } btrc_player_attr_t; 125 126 typedef enum { 127 BTRC_MEDIA_ATTR_TITLE = 0x01, 128 BTRC_MEDIA_ATTR_ARTIST = 0x02, 129 BTRC_MEDIA_ATTR_ALBUM = 0x03, 130 BTRC_MEDIA_ATTR_TRACK_NUM = 0x04, 131 BTRC_MEDIA_ATTR_NUM_TRACKS = 0x05, 132 BTRC_MEDIA_ATTR_GENRE = 0x06, 133 BTRC_MEDIA_ATTR_PLAYING_TIME = 0x07, 134 } btrc_media_attr_t; 135 136 typedef enum { 137 BTRC_PLAYER_VAL_OFF_REPEAT = 0x01, 138 BTRC_PLAYER_VAL_SINGLE_REPEAT = 0x02, 139 BTRC_PLAYER_VAL_ALL_REPEAT = 0x03, 140 BTRC_PLAYER_VAL_GROUP_REPEAT = 0x04 141 } btrc_player_repeat_val_t; 142 143 typedef enum { 144 BTRC_PLAYER_VAL_OFF_SHUFFLE = 0x01, 145 BTRC_PLAYER_VAL_ALL_SHUFFLE = 0x02, 146 BTRC_PLAYER_VAL_GROUP_SHUFFLE = 0x03 147 } btrc_player_shuffle_val_t; 148 149 typedef enum { 150 BTRC_STS_BAD_CMD = 0x00, /* Invalid command */ 151 BTRC_STS_BAD_PARAM = 0x01, /* Invalid parameter */ 152 BTRC_STS_NOT_FOUND = 0x02, /* Specified parameter is wrong or not found */ 153 BTRC_STS_INTERNAL_ERR = 0x03, /* Internal Error */ 154 BTRC_STS_NO_ERROR = 0x04, /* Operation Success */ 155 BTRC_STS_UID_CHANGED = 0x05, /* UIDs changed */ 156 BTRC_STS_RESERVED = 0x06, /* Reserved */ 157 BTRC_STS_INV_DIRN = 0x07, /* Invalid direction */ 158 BTRC_STS_INV_DIRECTORY = 0x08, /* Invalid directory */ 159 BTRC_STS_INV_ITEM = 0x09, /* Invalid Item */ 160 BTRC_STS_INV_SCOPE = 0x0a, /* Invalid scope */ 161 BTRC_STS_INV_RANGE = 0x0b, /* Invalid range */ 162 BTRC_STS_DIRECTORY = 0x0c, /* UID is a directory */ 163 BTRC_STS_MEDIA_IN_USE = 0x0d, /* Media in use */ 164 BTRC_STS_PLAY_LIST_FULL = 0x0e, /* Playing list full */ 165 BTRC_STS_SRCH_NOT_SPRTD = 0x0f, /* Search not supported */ 166 BTRC_STS_SRCH_IN_PROG = 0x10, /* Search in progress */ 167 BTRC_STS_INV_PLAYER = 0x11, /* Invalid player */ 168 BTRC_STS_PLAY_NOT_BROW = 0x12, /* Player not browsable */ 169 BTRC_STS_PLAY_NOT_ADDR = 0x13, /* Player not addressed */ 170 BTRC_STS_INV_RESULTS = 0x14, /* Invalid results */ 171 BTRC_STS_NO_AVBL_PLAY = 0x15, /* No available players */ 172 BTRC_STS_ADDR_PLAY_CHGD = 0x16, /* Addressed player changed */ 173 } btrc_status_t; 174 175 typedef struct { 176 uint16_t player_id; 177 uint16_t uid_counter; 178 } btrc_addr_player_changed_t; 179 180 typedef struct { 181 uint8_t num_attr; 182 uint8_t attr_ids[BTRC_MAX_APP_SETTINGS]; 183 uint8_t attr_values[BTRC_MAX_APP_SETTINGS]; 184 } btrc_player_settings_t; 185 186 typedef struct { 187 uint8_t val; 188 uint16_t charset_id; 189 uint16_t str_len; 190 uint8_t* p_str; 191 } btrc_player_app_ext_attr_val_t; 192 193 typedef struct { 194 uint8_t attr_id; 195 uint16_t charset_id; 196 uint16_t str_len; 197 uint8_t* p_str; 198 uint8_t num_val; 199 btrc_player_app_ext_attr_val_t ext_attr_val[BTRC_MAX_APP_ATTR_SIZE]; 200 } btrc_player_app_ext_attr_t; 201 202 typedef struct { 203 uint8_t attr_id; 204 uint8_t num_val; 205 uint8_t attr_val[BTRC_MAX_APP_ATTR_SIZE]; 206 } btrc_player_app_attr_t; 207 208 typedef struct { 209 uint32_t start_item; 210 uint32_t end_item; 211 uint32_t size; 212 uint32_t attrs[BTRC_MAX_ELEM_ATTR_SIZE]; 213 uint8_t attr_count; 214 } btrc_getfolderitem_t; 215 216 typedef struct { 217 uint16_t type; 218 uint16_t uid_counter; 219 } btrc_uids_changed_t; 220 221 typedef struct { uint16_t type; } btrc_now_playing_changed_t; 222 223 typedef union { 224 btrc_play_status_t play_status; 225 btrc_uid_t track; /* queue position in NowPlaying */ 226 uint32_t song_pos; 227 uint16_t uid_counter; 228 btrc_player_settings_t player_setting; 229 btrc_addr_player_changed_t addr_player_changed; 230 btrc_uids_changed_t uids_changed; 231 btrc_now_playing_changed_t now_playing_changed; 232 } btrc_register_notification_t; 233 234 typedef struct { 235 uint8_t id; /* can be attr_id or value_id */ 236 uint8_t text[BTRC_MAX_ATTR_STR_LEN]; 237 } btrc_player_setting_text_t; 238 239 typedef struct { 240 uint32_t attr_id; 241 uint8_t text[BTRC_MAX_ATTR_STR_LEN]; 242 } btrc_element_attr_val_t; 243 244 typedef struct { 245 uint16_t player_id; 246 uint8_t major_type; 247 uint32_t sub_type; 248 uint8_t play_status; 249 uint8_t features[BTRC_FEATURE_BIT_MASK_SIZE]; 250 uint16_t charset_id; 251 uint8_t name[BTRC_MAX_ATTR_STR_LEN]; 252 } btrc_item_player_t; 253 254 typedef struct { 255 uint8_t uid[BTRC_UID_SIZE]; 256 uint8_t type; 257 uint8_t playable; 258 uint16_t charset_id; 259 uint8_t name[BTRC_MAX_ATTR_STR_LEN]; 260 } btrc_item_folder_t; 261 262 typedef struct { 263 uint8_t uid[BTRC_UID_SIZE]; 264 uint8_t type; 265 uint16_t charset_id; 266 uint8_t name[BTRC_MAX_ATTR_STR_LEN]; 267 int num_attrs; 268 btrc_element_attr_val_t* p_attrs; 269 } btrc_item_media_t; 270 271 typedef struct { 272 uint8_t item_type; 273 union { 274 btrc_item_player_t player; 275 btrc_item_folder_t folder; 276 btrc_item_media_t media; 277 }; 278 } btrc_folder_items_t; 279 280 typedef struct { 281 uint16_t str_len; 282 uint8_t p_str[BTRC_MAX_ATTR_STR_LEN]; 283 } btrc_br_folder_name_t; 284 285 /** Callback for the controller's supported feautres */ 286 typedef void (*btrc_remote_features_callback)(const RawAddress& bd_addr, 287 btrc_remote_features_t features); 288 289 /** Callback for play status request */ 290 typedef void (*btrc_get_play_status_callback)(const RawAddress& bd_addr); 291 292 /** Callback for list player application attributes (Shuffle, Repeat,...) */ 293 typedef void (*btrc_list_player_app_attr_callback)(const RawAddress& bd_addr); 294 295 /** Callback for list player application attributes (Shuffle, Repeat,...) */ 296 typedef void (*btrc_list_player_app_values_callback)(btrc_player_attr_t attr_id, 297 const RawAddress& bd_addr); 298 299 /** Callback for getting the current player application settings value 300 ** num_attr: specifies the number of attribute ids contained in p_attrs 301 */ 302 typedef void (*btrc_get_player_app_value_callback)(uint8_t num_attr, 303 btrc_player_attr_t* p_attrs, 304 const RawAddress& bd_addr); 305 306 /** Callback for getting the player application settings attributes' text 307 ** num_attr: specifies the number of attribute ids contained in p_attrs 308 */ 309 typedef void (*btrc_get_player_app_attrs_text_callback)( 310 uint8_t num_attr, btrc_player_attr_t* p_attrs, const RawAddress& bd_addr); 311 312 /** Callback for getting the player application settings values' text 313 ** num_attr: specifies the number of value ids contained in p_vals 314 */ 315 typedef void (*btrc_get_player_app_values_text_callback)( 316 uint8_t attr_id, uint8_t num_val, uint8_t* p_vals, 317 const RawAddress& bd_addr); 318 319 /** Callback for setting the player application settings values */ 320 typedef void (*btrc_set_player_app_value_callback)( 321 btrc_player_settings_t* p_vals, const RawAddress& bd_addr); 322 323 /** Callback to fetch the get element attributes of the current song 324 ** num_attr: specifies the number of attributes requested in p_attrs 325 */ 326 typedef void (*btrc_get_element_attr_callback)(uint8_t num_attr, 327 btrc_media_attr_t* p_attrs, 328 const RawAddress& bd_addr); 329 330 /** Callback for register notification (Play state change/track change/...) 331 ** param: Is only valid if event_id is BTRC_EVT_PLAY_POS_CHANGED 332 */ 333 typedef void (*btrc_register_notification_callback)(btrc_event_id_t event_id, 334 uint32_t param, 335 const RawAddress& bd_addr); 336 337 /* AVRCP 1.4 Enhancements */ 338 /** Callback for volume change on CT 339 ** volume: Current volume setting on the CT (0-127) 340 */ 341 typedef void (*btrc_volume_change_callback)(uint8_t volume, uint8_t ctype, 342 const RawAddress& bd_addr); 343 344 /** Callback for passthrough commands */ 345 typedef void (*btrc_passthrough_cmd_callback)(int id, int key_state, 346 const RawAddress& bd_addr); 347 348 /** Callback for set addressed player response on TG **/ 349 typedef void (*btrc_set_addressed_player_callback)(uint16_t player_id, 350 const RawAddress& bd_addr); 351 352 /** Callback for set browsed player response on TG **/ 353 typedef void (*btrc_set_browsed_player_callback)(uint16_t player_id, 354 const RawAddress& bd_addr); 355 356 /** Callback for get folder items on TG 357 ** num_attr: specifies the number of attributes requested in p_attr_ids 358 */ 359 typedef void (*btrc_get_folder_items_callback)( 360 uint8_t scope, uint32_t start_item, uint32_t end_item, uint8_t num_attr, 361 uint32_t* p_attr_ids, const RawAddress& bd_addr); 362 363 /** Callback for changing browsed path on TG **/ 364 typedef void (*btrc_change_path_callback)(uint8_t direction, 365 uint8_t* folder_uid, 366 const RawAddress& bd_addr); 367 368 /** Callback to fetch the get item attributes of the media item 369 ** num_attr: specifies the number of attributes requested in p_attrs 370 */ 371 typedef void (*btrc_get_item_attr_callback)(uint8_t scope, uint8_t* uid, 372 uint16_t uid_counter, 373 uint8_t num_attr, 374 btrc_media_attr_t* p_attrs, 375 const RawAddress& bd_addr); 376 377 /** Callback for play request for the media item indicated by an identifier */ 378 typedef void (*btrc_play_item_callback)(uint8_t scope, uint16_t uid_counter, 379 uint8_t* uid, 380 const RawAddress& bd_addr); 381 382 /** Callback to fetch total number of items from a folder **/ 383 typedef void (*btrc_get_total_num_of_items_callback)(uint8_t scope, 384 const RawAddress& bd_addr); 385 386 /** Callback for conducting recursive search on a current browsed path for a 387 * specified string */ 388 typedef void (*btrc_search_callback)(uint16_t charset_id, uint16_t str_len, 389 uint8_t* p_str, const RawAddress& bd_addr); 390 391 /** Callback to add a specified media item indicated by an identifier to now 392 * playing queue. */ 393 typedef void (*btrc_add_to_now_playing_callback)(uint8_t scope, uint8_t* uid, 394 uint16_t uid_counter, 395 const RawAddress& bd_addr); 396 397 /** BT-RC Target callback structure. */ 398 typedef struct { 399 /** set to sizeof(BtRcCallbacks) */ 400 size_t size; 401 btrc_remote_features_callback remote_features_cb; 402 btrc_get_play_status_callback get_play_status_cb; 403 btrc_list_player_app_attr_callback list_player_app_attr_cb; 404 btrc_list_player_app_values_callback list_player_app_values_cb; 405 btrc_get_player_app_value_callback get_player_app_value_cb; 406 btrc_get_player_app_attrs_text_callback get_player_app_attrs_text_cb; 407 btrc_get_player_app_values_text_callback get_player_app_values_text_cb; 408 btrc_set_player_app_value_callback set_player_app_value_cb; 409 btrc_get_element_attr_callback get_element_attr_cb; 410 btrc_register_notification_callback register_notification_cb; 411 btrc_volume_change_callback volume_change_cb; 412 btrc_passthrough_cmd_callback passthrough_cmd_cb; 413 btrc_set_addressed_player_callback set_addressed_player_cb; 414 btrc_set_browsed_player_callback set_browsed_player_cb; 415 btrc_get_folder_items_callback get_folder_items_cb; 416 btrc_change_path_callback change_path_cb; 417 btrc_get_item_attr_callback get_item_attr_cb; 418 btrc_play_item_callback play_item_cb; 419 btrc_get_total_num_of_items_callback get_total_num_of_items_cb; 420 btrc_search_callback search_cb; 421 btrc_add_to_now_playing_callback add_to_now_playing_cb; 422 } btrc_callbacks_t; 423 424 /** Represents the standard BT-RC AVRCP Target interface. */ 425 typedef struct { 426 /** set to sizeof(BtRcInterface) */ 427 size_t size; 428 /** 429 * Register the BtRc callbacks 430 */ 431 bt_status_t (*init)(btrc_callbacks_t* callbacks); 432 433 /** Respose to GetPlayStatus request. Contains the current 434 ** 1. Play status 435 ** 2. Song duration/length 436 ** 3. Song position 437 */ 438 bt_status_t (*get_play_status_rsp)(const RawAddress& bd_addr, 439 btrc_play_status_t play_status, 440 uint32_t song_len, uint32_t song_pos); 441 442 /** Lists the support player application attributes (Shuffle/Repeat/...) 443 ** num_attr: Specifies the number of attributes contained in the pointer 444 *p_attrs 445 */ 446 bt_status_t (*list_player_app_attr_rsp)(const RawAddress& bd_addr, 447 int num_attr, 448 btrc_player_attr_t* p_attrs); 449 450 /** Lists the support player application attributes (Shuffle Off/On/Group) 451 ** num_val: Specifies the number of values contained in the pointer p_vals 452 */ 453 bt_status_t (*list_player_app_value_rsp)(const RawAddress& bd_addr, 454 int num_val, uint8_t* p_vals); 455 456 /** Returns the current application attribute values for each of the specified 457 * attr_id */ 458 bt_status_t (*get_player_app_value_rsp)(const RawAddress& bd_addr, 459 btrc_player_settings_t* p_vals); 460 461 /** Returns the application attributes text ("Shuffle"/"Repeat"/...) 462 ** num_attr: Specifies the number of attributes' text contained in the 463 *pointer p_attrs 464 */ 465 bt_status_t (*get_player_app_attr_text_rsp)( 466 const RawAddress& bd_addr, int num_attr, 467 btrc_player_setting_text_t* p_attrs); 468 469 /** Returns the application attributes text ("Shuffle"/"Repeat"/...) 470 ** num_attr: Specifies the number of attribute values' text contained in the 471 *pointer p_vals 472 */ 473 bt_status_t (*get_player_app_value_text_rsp)( 474 const RawAddress& bd_addr, int num_val, 475 btrc_player_setting_text_t* p_vals); 476 477 /** Returns the current songs' element attributes text 478 *("Title"/"Album"/"Artist") 479 ** num_attr: Specifies the number of attributes' text contained in the 480 *pointer p_attrs 481 */ 482 bt_status_t (*get_element_attr_rsp)(const RawAddress& bd_addr, 483 uint8_t num_attr, 484 btrc_element_attr_val_t* p_attrs); 485 486 /** Response to set player attribute request ("Shuffle"/"Repeat") 487 ** rsp_status: Status of setting the player attributes for the current media 488 *player 489 */ 490 bt_status_t (*set_player_app_value_rsp)(const RawAddress& bd_addr, 491 btrc_status_t rsp_status); 492 493 /* Response to the register notification request (Play state change/track 494 *change/...). 495 ** event_id: Refers to the event_id this notification change corresponds too 496 ** type: Response type - interim/changed 497 ** p_params: Based on the event_id, this parameter should be populated 498 */ 499 bt_status_t (*register_notification_rsp)( 500 btrc_event_id_t event_id, btrc_notification_type_t type, 501 btrc_register_notification_t* p_param); 502 503 /* AVRCP 1.4 enhancements */ 504 505 /**Send current volume setting to remote side. Support limited to 506 *SetAbsoluteVolume 507 ** This can be enhanced to support Relative Volume (AVRCP 1.0). 508 ** With RelateVolume, we will send VOLUME_UP/VOLUME_DOWN opposed to absolute 509 *volume level 510 ** volume: Should be in the range 0-127. bit7 is reseved and cannot be set 511 */ 512 bt_status_t (*set_volume)(uint8_t volume); 513 514 /* Set addressed player response from TG to CT */ 515 bt_status_t (*set_addressed_player_rsp)(const RawAddress& bd_addr, 516 btrc_status_t rsp_status); 517 518 /* Set browsed player response from TG to CT */ 519 bt_status_t (*set_browsed_player_rsp)(const RawAddress& bd_addr, 520 btrc_status_t rsp_status, 521 uint32_t num_items, uint16_t charset_id, 522 uint8_t folder_depth, 523 btrc_br_folder_name_t* p_folders); 524 525 /* Get folder item list response from TG to CT */ 526 bt_status_t (*get_folder_items_list_rsp)(const RawAddress& bd_addr, 527 btrc_status_t rsp_status, 528 uint16_t uid_counter, 529 uint8_t num_items, 530 btrc_folder_items_t* p_items); 531 532 /* Change path response from TG to CT */ 533 bt_status_t (*change_path_rsp)(const RawAddress& bd_addr, 534 btrc_status_t rsp_status, uint32_t num_items); 535 536 /** Returns the element's attributes num_attr: Specifies the number of 537 * attributes' text contained in the pointer p_attrs 538 */ 539 bt_status_t (*get_item_attr_rsp)(const RawAddress& bd_addr, 540 btrc_status_t rsp_status, uint8_t num_attr, 541 btrc_element_attr_val_t* p_attrs); 542 543 /* play media item response from TG to CT */ 544 bt_status_t (*play_item_rsp)(const RawAddress& bd_addr, 545 btrc_status_t rsp_status); 546 547 /* get total number of items response from TG to CT*/ 548 bt_status_t (*get_total_num_of_items_rsp)(const RawAddress& bd_addr, 549 btrc_status_t rsp_status, 550 uint32_t uid_counter, 551 uint32_t num_items); 552 553 /* Search VFS response from TG to CT */ 554 bt_status_t (*search_rsp)(const RawAddress& bd_addr, btrc_status_t rsp_status, 555 uint32_t uid_counter, uint32_t num_items); 556 557 /* add_to_now playing list response from TG to CT */ 558 bt_status_t (*add_to_now_playing_rsp)(const RawAddress& bd_addr, 559 btrc_status_t rsp_status); 560 561 /** Closes the interface. */ 562 void (*cleanup)(void); 563 } btrc_interface_t; 564 565 typedef void (*btrc_passthrough_rsp_callback)(const RawAddress& bd_addr, int id, 566 int key_state); 567 568 typedef void (*btrc_groupnavigation_rsp_callback)(int id, int key_state); 569 570 typedef void (*btrc_connection_state_callback)(bool rc_connect, bool bt_connect, 571 const RawAddress& bd_addr); 572 573 typedef void (*btrc_ctrl_getrcfeatures_callback)(const RawAddress& bd_addr, 574 int features); 575 576 typedef void (*btrc_ctrl_setabsvol_cmd_callback)(const RawAddress& bd_addr, 577 uint8_t abs_vol, 578 uint8_t label); 579 580 typedef void (*btrc_ctrl_registernotification_abs_vol_callback)( 581 const RawAddress& bd_addr, uint8_t label); 582 583 typedef void (*btrc_ctrl_setplayerapplicationsetting_rsp_callback)( 584 const RawAddress& bd_addr, uint8_t accepted); 585 586 typedef void (*btrc_ctrl_playerapplicationsetting_callback)( 587 const RawAddress& bd_addr, uint8_t num_attr, 588 btrc_player_app_attr_t* app_attrs, uint8_t num_ext_attr, 589 btrc_player_app_ext_attr_t* ext_attrs); 590 591 typedef void (*btrc_ctrl_playerapplicationsetting_changed_callback)( 592 const RawAddress& bd_addr, const btrc_player_settings_t& vals); 593 594 typedef void (*btrc_ctrl_track_changed_callback)( 595 const RawAddress& bd_addr, uint8_t num_attr, 596 btrc_element_attr_val_t* p_attrs); 597 598 typedef void (*btrc_ctrl_play_position_changed_callback)( 599 const RawAddress& bd_addr, uint32_t song_len, uint32_t song_pos); 600 601 typedef void (*btrc_ctrl_play_status_changed_callback)( 602 const RawAddress& bd_addr, btrc_play_status_t play_status); 603 604 typedef void (*btrc_ctrl_get_folder_items_callback)( 605 const RawAddress& bd_addr, btrc_status_t status, 606 const btrc_folder_items_t* folder_items, uint8_t count); 607 608 typedef void (*btrc_ctrl_change_path_callback)(const RawAddress& bd_addr, 609 uint32_t count); 610 611 typedef void (*btrc_ctrl_set_browsed_player_callback)(const RawAddress& bd_addr, 612 uint8_t num_items, 613 uint8_t depth); 614 typedef void (*btrc_ctrl_set_addressed_player_callback)( 615 const RawAddress& bd_addr, uint8_t status); 616 /** BT-RC Controller callback structure. */ 617 typedef struct { 618 /** set to sizeof(BtRcCallbacks) */ 619 size_t size; 620 btrc_passthrough_rsp_callback passthrough_rsp_cb; 621 btrc_groupnavigation_rsp_callback groupnavigation_rsp_cb; 622 btrc_connection_state_callback connection_state_cb; 623 btrc_ctrl_getrcfeatures_callback getrcfeatures_cb; 624 btrc_ctrl_setplayerapplicationsetting_rsp_callback setplayerappsetting_rsp_cb; 625 btrc_ctrl_playerapplicationsetting_callback playerapplicationsetting_cb; 626 btrc_ctrl_playerapplicationsetting_changed_callback 627 playerapplicationsetting_changed_cb; 628 btrc_ctrl_setabsvol_cmd_callback setabsvol_cmd_cb; 629 btrc_ctrl_registernotification_abs_vol_callback 630 registernotification_absvol_cb; 631 btrc_ctrl_track_changed_callback track_changed_cb; 632 btrc_ctrl_play_position_changed_callback play_position_changed_cb; 633 btrc_ctrl_play_status_changed_callback play_status_changed_cb; 634 btrc_ctrl_get_folder_items_callback get_folder_items_cb; 635 btrc_ctrl_change_path_callback change_folder_path_cb; 636 btrc_ctrl_set_browsed_player_callback set_browsed_player_cb; 637 btrc_ctrl_set_addressed_player_callback set_addressed_player_cb; 638 } btrc_ctrl_callbacks_t; 639 640 /** Represents the standard BT-RC AVRCP Controller interface. */ 641 typedef struct { 642 /** set to sizeof(BtRcInterface) */ 643 size_t size; 644 /** 645 * Register the BtRc callbacks 646 */ 647 bt_status_t (*init)(btrc_ctrl_callbacks_t* callbacks); 648 649 /** send pass through command to target */ 650 bt_status_t (*send_pass_through_cmd)(const RawAddress& bd_addr, 651 uint8_t key_code, uint8_t key_state); 652 653 /** send group navigation command to target */ 654 bt_status_t (*send_group_navigation_cmd)(const RawAddress& bd_addr, 655 uint8_t key_code, uint8_t key_state); 656 657 /** send command to set player applicaiton setting attributes to target */ 658 bt_status_t (*set_player_app_setting_cmd)(const RawAddress& bd_addr, 659 uint8_t num_attrib, 660 uint8_t* attrib_ids, 661 uint8_t* attrib_vals); 662 663 /** send command to play a particular item */ 664 bt_status_t (*play_item_cmd)(const RawAddress& bd_addr, uint8_t scope, 665 uint8_t* uid, uint16_t uid_counter); 666 667 /** get the playback state */ 668 bt_status_t (*get_playback_state_cmd)(const RawAddress& bd_addr); 669 670 /** get the now playing list */ 671 bt_status_t (*get_now_playing_list_cmd)(const RawAddress& bd_addr, 672 uint32_t start, uint32_t end); 673 674 /** get the folder list */ 675 bt_status_t (*get_folder_list_cmd)(const RawAddress& bd_addr, uint32_t start, 676 uint32_t end); 677 678 /** get the player list */ 679 bt_status_t (*get_player_list_cmd)(const RawAddress& bd_addr, uint32_t start, 680 uint32_t end); 681 682 /** change the folder path */ 683 bt_status_t (*change_folder_path_cmd)(const RawAddress& bd_addr, 684 uint8_t direction, uint8_t* uid); 685 686 /** set browsed player */ 687 bt_status_t (*set_browsed_player_cmd)(const RawAddress& bd_addr, 688 uint16_t player_id); 689 690 /** set addressed player */ 691 bt_status_t (*set_addressed_player_cmd)(const RawAddress& bd_addr, 692 uint16_t player_id); 693 694 /** send rsp to set_abs_vol received from target */ 695 bt_status_t (*set_volume_rsp)(const RawAddress& bd_addr, uint8_t abs_vol, 696 uint8_t label); 697 698 /** send notificaiton rsp for abs vol to target */ 699 bt_status_t (*register_abs_vol_rsp)(const RawAddress& bd_addr, 700 btrc_notification_type_t rsp_type, 701 uint8_t abs_vol, uint8_t label); 702 703 /** Closes the interface. */ 704 void (*cleanup)(void); 705 } btrc_ctrl_interface_t; 706 707 __END_DECLS 708 709 #endif /* ANDROID_INCLUDE_BT_RC_H */ 710
