1 /****************************************************************************** 2 * 3 * Copyright (c) 2014 The Android Open Source Project 4 * Copyright (C) 2009-2012 Broadcom Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at: 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 ******************************************************************************/ 19 20 /************************************************************************************ 21 * 22 * Filename: btif_util.c 23 * 24 * Description: Miscellaneous helper functions 25 * 26 * 27 ***********************************************************************************/ 28 29 #include <hardware/bluetooth.h> 30 #include <hardware/bt_hf.h> 31 #include <hardware/bt_av.h> 32 #include <netinet/in.h> 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 #include <ctype.h> 37 38 39 #define LOG_TAG "BTIF_UTIL" 40 #include "btif_common.h" 41 #include "bta_api.h" 42 #include "gki.h" 43 #include "btu.h" 44 #include "bte.h" 45 #include "bd.h" 46 #include "btif_dm.h" 47 #include "btif_util.h" 48 #include "bta_ag_api.h" 49 #include "bta_av_api.h" 50 #include "bta_hh_api.h" 51 #include "bta_hf_client_api.h" 52 #include "avrc_defs.h" 53 54 55 56 /************************************************************************************ 57 ** Constants & Macros 58 ************************************************************************************/ 59 #define ISDIGIT(a) ((a>='0') && (a<='9')) 60 #define ISXDIGIT(a) (((a>='0') && (a<='9'))||((a>='A') && (a<='F'))||((a>='a') && (a<='f'))) 61 62 /************************************************************************************ 63 ** Local type definitions 64 ************************************************************************************/ 65 66 /************************************************************************************ 67 ** Static variables 68 ************************************************************************************/ 69 70 /************************************************************************************ 71 ** Static functions 72 ************************************************************************************/ 73 74 /************************************************************************************ 75 ** Externs 76 ************************************************************************************/ 77 78 /************************************************************************************ 79 ** Functions 80 ************************************************************************************/ 81 82 /***************************************************************************** 83 ** Logging helper functions 84 *****************************************************************************/ 85 86 int str2bd(char *str, bt_bdaddr_t *addr) 87 { 88 int32_t i = 0; 89 for (i = 0; i < 6; i++) { 90 addr->address[i] = (uint8_t)strtoul(str, &str, 16); 91 str++; 92 } 93 return 0; 94 } 95 96 char *bd2str(const bt_bdaddr_t *bdaddr, bdstr_t *bdstr) 97 { 98 const uint8_t *addr = bdaddr->address; 99 100 sprintf(*bdstr, "%02x:%02x:%02x:%02x:%02x:%02x", 101 addr[0], addr[1], addr[2], 102 addr[3], addr[4], addr[5]); 103 return *bdstr; 104 } 105 106 UINT32 devclass2uint(DEV_CLASS dev_class) 107 { 108 UINT32 cod = 0; 109 110 if(dev_class != NULL) 111 { 112 /* if COD is 0, irrespective of the device type set it to Unclassified device */ 113 cod = (dev_class[2]) | (dev_class[1] << 8) | (dev_class[0] << 16); 114 } 115 return cod; 116 } 117 void uint2devclass(UINT32 cod, DEV_CLASS dev_class) 118 { 119 dev_class[2] = (UINT8)cod; 120 dev_class[1] = (UINT8)(cod >> 8); 121 dev_class[0] = (UINT8)(cod >> 16); 122 } 123 124 static const UINT8 sdp_base_uuid[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 125 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB}; 126 127 void uuid16_to_uuid128(uint16_t uuid16, bt_uuid_t* uuid128) 128 { 129 uint16_t uuid16_bo; 130 memset(uuid128, 0, sizeof(bt_uuid_t)); 131 132 memcpy(uuid128->uu, sdp_base_uuid, MAX_UUID_SIZE); 133 uuid16_bo = ntohs(uuid16); 134 memcpy(uuid128->uu + 2, &uuid16_bo, sizeof(uint16_t)); 135 } 136 137 void string_to_uuid(char *str, bt_uuid_t *p_uuid) 138 { 139 uint32_t uuid0, uuid4; 140 uint16_t uuid1, uuid2, uuid3, uuid5; 141 142 sscanf(str, "%08x-%04hx-%04hx-%04hx-%08x%04hx", 143 &uuid0, &uuid1, &uuid2, &uuid3, &uuid4, &uuid5); 144 145 uuid0 = htonl(uuid0); 146 uuid1 = htons(uuid1); 147 uuid2 = htons(uuid2); 148 uuid3 = htons(uuid3); 149 uuid4 = htonl(uuid4); 150 uuid5 = htons(uuid5); 151 152 memcpy(&(p_uuid->uu[0]), &uuid0, 4); 153 memcpy(&(p_uuid->uu[4]), &uuid1, 2); 154 memcpy(&(p_uuid->uu[6]), &uuid2, 2); 155 memcpy(&(p_uuid->uu[8]), &uuid3, 2); 156 memcpy(&(p_uuid->uu[10]), &uuid4, 4); 157 memcpy(&(p_uuid->uu[14]), &uuid5, 2); 158 159 return; 160 161 } 162 163 void uuid_to_string(bt_uuid_t *p_uuid, char *str) 164 { 165 uint32_t uuid0, uuid4; 166 uint16_t uuid1, uuid2, uuid3, uuid5; 167 168 memcpy(&uuid0, &(p_uuid->uu[0]), 4); 169 memcpy(&uuid1, &(p_uuid->uu[4]), 2); 170 memcpy(&uuid2, &(p_uuid->uu[6]), 2); 171 memcpy(&uuid3, &(p_uuid->uu[8]), 2); 172 memcpy(&uuid4, &(p_uuid->uu[10]), 4); 173 memcpy(&uuid5, &(p_uuid->uu[14]), 2); 174 175 sprintf((char *)str, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x", 176 ntohl(uuid0), ntohs(uuid1), 177 ntohs(uuid2), ntohs(uuid3), 178 ntohl(uuid4), ntohs(uuid5)); 179 return; 180 } 181 182 /***************************************************************************** 183 ** Function ascii_2_hex 184 ** 185 ** Description This function converts an ASCII string into HEX 186 ** 187 ** Returns the number of hex bytes filled. 188 */ 189 int ascii_2_hex (char *p_ascii, int len, UINT8 *p_hex) 190 { 191 int x; 192 UINT8 c; 193 194 for (x = 0; (x < len) && (*p_ascii); x++) 195 { 196 if (ISDIGIT (*p_ascii)) 197 c = (*p_ascii - '0') << 4; 198 else 199 c = (toupper(*p_ascii) - 'A' + 10) << 4; 200 201 p_ascii++; 202 if (*p_ascii) 203 { 204 if (ISDIGIT (*p_ascii)) 205 c |= (*p_ascii - '0'); 206 else 207 c |= (toupper(*p_ascii) - 'A' + 10); 208 209 p_ascii++; 210 } 211 *p_hex++ = c; 212 } 213 214 return (x); 215 } 216 217 218 const char* dump_dm_search_event(UINT16 event) 219 { 220 switch(event) 221 { 222 CASE_RETURN_STR(BTA_DM_INQ_RES_EVT) 223 CASE_RETURN_STR(BTA_DM_INQ_CMPL_EVT) 224 CASE_RETURN_STR(BTA_DM_DISC_RES_EVT) 225 CASE_RETURN_STR(BTA_DM_DISC_BLE_RES_EVT) 226 CASE_RETURN_STR(BTA_DM_DISC_CMPL_EVT) 227 CASE_RETURN_STR(BTA_DM_DI_DISC_CMPL_EVT) 228 CASE_RETURN_STR(BTA_DM_SEARCH_CANCEL_CMPL_EVT) 229 230 default: 231 return "UNKNOWN MSG ID"; 232 } 233 } 234 235 236 const char* dump_property_type(bt_property_type_t type) 237 { 238 switch(type) 239 { 240 CASE_RETURN_STR(BT_PROPERTY_BDNAME) 241 CASE_RETURN_STR(BT_PROPERTY_BDADDR) 242 CASE_RETURN_STR(BT_PROPERTY_UUIDS) 243 CASE_RETURN_STR(BT_PROPERTY_CLASS_OF_DEVICE) 244 CASE_RETURN_STR(BT_PROPERTY_TYPE_OF_DEVICE) 245 CASE_RETURN_STR(BT_PROPERTY_REMOTE_RSSI) 246 CASE_RETURN_STR(BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT) 247 CASE_RETURN_STR(BT_PROPERTY_ADAPTER_BONDED_DEVICES) 248 CASE_RETURN_STR(BT_PROPERTY_ADAPTER_SCAN_MODE) 249 CASE_RETURN_STR(BT_PROPERTY_REMOTE_FRIENDLY_NAME) 250 251 default: 252 return "UNKNOWN PROPERTY ID"; 253 } 254 } 255 256 const char* dump_dm_event(UINT16 event) 257 { 258 switch(event) 259 { 260 CASE_RETURN_STR(BTA_DM_ENABLE_EVT) 261 CASE_RETURN_STR(BTA_DM_DISABLE_EVT) 262 CASE_RETURN_STR(BTA_DM_PIN_REQ_EVT) 263 CASE_RETURN_STR(BTA_DM_AUTH_CMPL_EVT) 264 CASE_RETURN_STR(BTA_DM_AUTHORIZE_EVT) 265 CASE_RETURN_STR(BTA_DM_LINK_UP_EVT) 266 CASE_RETURN_STR(BTA_DM_LINK_DOWN_EVT) 267 CASE_RETURN_STR(BTA_DM_SIG_STRENGTH_EVT) 268 CASE_RETURN_STR(BTA_DM_BUSY_LEVEL_EVT) 269 CASE_RETURN_STR(BTA_DM_BOND_CANCEL_CMPL_EVT) 270 CASE_RETURN_STR(BTA_DM_SP_CFM_REQ_EVT) 271 CASE_RETURN_STR(BTA_DM_SP_KEY_NOTIF_EVT) 272 CASE_RETURN_STR(BTA_DM_SP_RMT_OOB_EVT) 273 CASE_RETURN_STR(BTA_DM_SP_KEYPRESS_EVT) 274 CASE_RETURN_STR(BTA_DM_ROLE_CHG_EVT) 275 CASE_RETURN_STR(BTA_DM_BLE_KEY_EVT) 276 CASE_RETURN_STR(BTA_DM_BLE_SEC_REQ_EVT) 277 CASE_RETURN_STR(BTA_DM_BLE_PASSKEY_NOTIF_EVT) 278 CASE_RETURN_STR(BTA_DM_BLE_PASSKEY_REQ_EVT) 279 CASE_RETURN_STR(BTA_DM_BLE_OOB_REQ_EVT) 280 CASE_RETURN_STR(BTA_DM_BLE_LOCAL_IR_EVT) 281 CASE_RETURN_STR(BTA_DM_BLE_LOCAL_ER_EVT) 282 CASE_RETURN_STR(BTA_DM_BLE_AUTH_CMPL_EVT) 283 CASE_RETURN_STR(BTA_DM_DEV_UNPAIRED_EVT) 284 CASE_RETURN_STR(BTA_DM_HW_ERROR_EVT) 285 CASE_RETURN_STR(BTA_DM_ENER_INFO_READ) 286 287 default: 288 return "UNKNOWN DM EVENT"; 289 } 290 } 291 292 const char* dump_hf_event(UINT16 event) 293 { 294 switch(event) 295 { 296 CASE_RETURN_STR(BTA_AG_ENABLE_EVT) 297 CASE_RETURN_STR(BTA_AG_REGISTER_EVT) 298 CASE_RETURN_STR(BTA_AG_OPEN_EVT) 299 CASE_RETURN_STR(BTA_AG_CLOSE_EVT) 300 CASE_RETURN_STR(BTA_AG_CONN_EVT) 301 CASE_RETURN_STR(BTA_AG_AUDIO_OPEN_EVT) 302 CASE_RETURN_STR(BTA_AG_AUDIO_CLOSE_EVT) 303 CASE_RETURN_STR(BTA_AG_SPK_EVT) 304 CASE_RETURN_STR(BTA_AG_MIC_EVT) 305 CASE_RETURN_STR(BTA_AG_AT_CKPD_EVT) 306 CASE_RETURN_STR(BTA_AG_DISABLE_EVT) 307 #if (BTM_WBS_INCLUDED == TRUE ) 308 CASE_RETURN_STR(BTA_AG_WBS_EVT) 309 #endif 310 CASE_RETURN_STR(BTA_AG_AT_A_EVT) 311 CASE_RETURN_STR(BTA_AG_AT_D_EVT) 312 CASE_RETURN_STR(BTA_AG_AT_CHLD_EVT) 313 CASE_RETURN_STR(BTA_AG_AT_CHUP_EVT) 314 CASE_RETURN_STR(BTA_AG_AT_CIND_EVT) 315 CASE_RETURN_STR(BTA_AG_AT_VTS_EVT) 316 CASE_RETURN_STR(BTA_AG_AT_BINP_EVT) 317 CASE_RETURN_STR(BTA_AG_AT_BLDN_EVT) 318 CASE_RETURN_STR(BTA_AG_AT_BVRA_EVT) 319 CASE_RETURN_STR(BTA_AG_AT_NREC_EVT) 320 CASE_RETURN_STR(BTA_AG_AT_CNUM_EVT) 321 CASE_RETURN_STR(BTA_AG_AT_BTRH_EVT) 322 CASE_RETURN_STR(BTA_AG_AT_CLCC_EVT) 323 CASE_RETURN_STR(BTA_AG_AT_COPS_EVT) 324 CASE_RETURN_STR(BTA_AG_AT_UNAT_EVT) 325 CASE_RETURN_STR(BTA_AG_AT_CBC_EVT) 326 CASE_RETURN_STR(BTA_AG_AT_BAC_EVT) 327 CASE_RETURN_STR(BTA_AG_AT_BCS_EVT) 328 329 default: 330 return "UNKNOWN MSG ID"; 331 } 332 } 333 334 const char* dump_hf_client_event(UINT16 event) 335 { 336 switch(event) 337 { 338 CASE_RETURN_STR(BTA_HF_CLIENT_ENABLE_EVT) 339 CASE_RETURN_STR(BTA_HF_CLIENT_REGISTER_EVT) 340 CASE_RETURN_STR(BTA_HF_CLIENT_OPEN_EVT) 341 CASE_RETURN_STR(BTA_HF_CLIENT_CLOSE_EVT) 342 CASE_RETURN_STR(BTA_HF_CLIENT_CONN_EVT) 343 CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_OPEN_EVT) 344 CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_MSBC_OPEN_EVT) 345 CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_CLOSE_EVT) 346 CASE_RETURN_STR(BTA_HF_CLIENT_SPK_EVT) 347 CASE_RETURN_STR(BTA_HF_CLIENT_MIC_EVT) 348 CASE_RETURN_STR(BTA_HF_CLIENT_DISABLE_EVT) 349 CASE_RETURN_STR(BTA_HF_CLIENT_IND_EVT) 350 CASE_RETURN_STR(BTA_HF_CLIENT_VOICE_REC_EVT) 351 CASE_RETURN_STR(BTA_HF_CLIENT_OPERATOR_NAME_EVT) 352 CASE_RETURN_STR(BTA_HF_CLIENT_CLIP_EVT) 353 CASE_RETURN_STR(BTA_HF_CLIENT_CCWA_EVT) 354 CASE_RETURN_STR(BTA_HF_CLIENT_AT_RESULT_EVT) 355 CASE_RETURN_STR(BTA_HF_CLIENT_CLCC_EVT) 356 CASE_RETURN_STR(BTA_HF_CLIENT_CNUM_EVT) 357 CASE_RETURN_STR(BTA_HF_CLIENT_BTRH_EVT) 358 CASE_RETURN_STR(BTA_HF_CLIENT_BSIR_EVT) 359 CASE_RETURN_STR(BTA_HF_CLIENT_BINP_EVT) 360 CASE_RETURN_STR(BTA_HF_CLIENT_RING_INDICATION) 361 default: 362 return "UNKNOWN MSG ID"; 363 } 364 } 365 366 const char* dump_hh_event(UINT16 event) 367 { 368 switch(event) 369 { 370 CASE_RETURN_STR(BTA_HH_ENABLE_EVT) 371 CASE_RETURN_STR(BTA_HH_DISABLE_EVT) 372 CASE_RETURN_STR(BTA_HH_OPEN_EVT) 373 CASE_RETURN_STR(BTA_HH_CLOSE_EVT) 374 CASE_RETURN_STR(BTA_HH_GET_DSCP_EVT) 375 CASE_RETURN_STR(BTA_HH_GET_PROTO_EVT) 376 CASE_RETURN_STR(BTA_HH_GET_RPT_EVT) 377 CASE_RETURN_STR(BTA_HH_GET_IDLE_EVT) 378 CASE_RETURN_STR(BTA_HH_SET_PROTO_EVT) 379 CASE_RETURN_STR(BTA_HH_SET_RPT_EVT) 380 CASE_RETURN_STR(BTA_HH_SET_IDLE_EVT) 381 CASE_RETURN_STR(BTA_HH_VC_UNPLUG_EVT) 382 CASE_RETURN_STR(BTA_HH_ADD_DEV_EVT) 383 CASE_RETURN_STR(BTA_HH_RMV_DEV_EVT) 384 CASE_RETURN_STR(BTA_HH_API_ERR_EVT) 385 default: 386 return "UNKNOWN MSG ID"; 387 } 388 } 389 390 391 const char* dump_hf_conn_state(UINT16 event) 392 { 393 switch(event) 394 { 395 CASE_RETURN_STR(BTHF_CONNECTION_STATE_DISCONNECTED) 396 CASE_RETURN_STR(BTHF_CONNECTION_STATE_CONNECTING) 397 CASE_RETURN_STR(BTHF_CONNECTION_STATE_CONNECTED) 398 CASE_RETURN_STR(BTHF_CONNECTION_STATE_SLC_CONNECTED) 399 CASE_RETURN_STR(BTHF_CONNECTION_STATE_DISCONNECTING) 400 default: 401 return "UNKNOWN MSG ID"; 402 } 403 } 404 405 const char* dump_hf_call_state(bthf_call_state_t call_state) 406 { 407 switch(call_state) 408 { 409 CASE_RETURN_STR(BTHF_CALL_STATE_IDLE) 410 CASE_RETURN_STR(BTHF_CALL_STATE_HELD) 411 CASE_RETURN_STR(BTHF_CALL_STATE_DIALING) 412 CASE_RETURN_STR(BTHF_CALL_STATE_ALERTING) 413 CASE_RETURN_STR(BTHF_CALL_STATE_INCOMING) 414 CASE_RETURN_STR(BTHF_CALL_STATE_WAITING) 415 CASE_RETURN_STR(BTHF_CALL_STATE_ACTIVE) 416 default: 417 return "UNKNOWN CALL STATE"; 418 } 419 } 420 421 const char* dump_thread_evt(bt_cb_thread_evt evt) 422 { 423 switch(evt) 424 { 425 CASE_RETURN_STR(ASSOCIATE_JVM) 426 CASE_RETURN_STR(DISASSOCIATE_JVM) 427 428 default: 429 return "unknown thread evt"; 430 } 431 } 432 433 434 const char* dump_hf_audio_state(UINT16 event) 435 { 436 switch(event) 437 { 438 CASE_RETURN_STR(BTHF_AUDIO_STATE_DISCONNECTED) 439 CASE_RETURN_STR(BTHF_AUDIO_STATE_CONNECTING) 440 CASE_RETURN_STR(BTHF_AUDIO_STATE_CONNECTED) 441 CASE_RETURN_STR(BTHF_AUDIO_STATE_DISCONNECTING) 442 default: 443 return "UNKNOWN MSG ID"; 444 445 } 446 } 447 448 const char* dump_av_conn_state(UINT16 event) 449 { 450 switch(event) 451 { 452 CASE_RETURN_STR(BTAV_CONNECTION_STATE_DISCONNECTED) 453 CASE_RETURN_STR(BTAV_CONNECTION_STATE_CONNECTING) 454 CASE_RETURN_STR(BTAV_CONNECTION_STATE_CONNECTED) 455 CASE_RETURN_STR(BTAV_CONNECTION_STATE_DISCONNECTING) 456 default: 457 return "UNKNOWN MSG ID"; 458 } 459 } 460 461 const char* dump_av_audio_state(UINT16 event) 462 { 463 switch(event) 464 { 465 CASE_RETURN_STR(BTAV_AUDIO_STATE_REMOTE_SUSPEND) 466 CASE_RETURN_STR(BTAV_AUDIO_STATE_STOPPED) 467 CASE_RETURN_STR(BTAV_AUDIO_STATE_STARTED) 468 default: 469 return "UNKNOWN MSG ID"; 470 } 471 } 472 473 const char* dump_adapter_scan_mode(bt_scan_mode_t mode) 474 { 475 switch(mode) 476 { 477 CASE_RETURN_STR(BT_SCAN_MODE_NONE) 478 CASE_RETURN_STR(BT_SCAN_MODE_CONNECTABLE) 479 CASE_RETURN_STR(BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE) 480 481 default: 482 return "unknown scan mode"; 483 } 484 } 485 486 const char* dump_bt_status(bt_status_t status) 487 { 488 switch(status) 489 { 490 CASE_RETURN_STR(BT_STATUS_SUCCESS) 491 CASE_RETURN_STR(BT_STATUS_FAIL) 492 CASE_RETURN_STR(BT_STATUS_NOT_READY) 493 CASE_RETURN_STR(BT_STATUS_NOMEM) 494 CASE_RETURN_STR(BT_STATUS_BUSY) 495 CASE_RETURN_STR(BT_STATUS_UNSUPPORTED) 496 497 default: 498 return "unknown scan mode"; 499 } 500 } 501 502 const char *dump_rc_event(UINT8 event) 503 { 504 switch(event) { 505 CASE_RETURN_STR(BTA_AV_RC_OPEN_EVT) 506 CASE_RETURN_STR(BTA_AV_RC_CLOSE_EVT) 507 CASE_RETURN_STR(BTA_AV_REMOTE_CMD_EVT) 508 CASE_RETURN_STR(BTA_AV_REMOTE_RSP_EVT) 509 CASE_RETURN_STR(BTA_AV_VENDOR_CMD_EVT) 510 CASE_RETURN_STR(BTA_AV_VENDOR_RSP_EVT) 511 CASE_RETURN_STR(BTA_AV_META_MSG_EVT) 512 CASE_RETURN_STR(BTA_AV_RC_FEAT_EVT) 513 default: 514 return "UNKNOWN_EVENT"; 515 } 516 } 517 518 const char * dump_rc_notification_event_id(UINT8 event_id) 519 { 520 switch(event_id) 521 { 522 CASE_RETURN_STR(AVRC_EVT_PLAY_STATUS_CHANGE) 523 CASE_RETURN_STR(AVRC_EVT_TRACK_CHANGE) 524 CASE_RETURN_STR(AVRC_EVT_TRACK_REACHED_END) 525 CASE_RETURN_STR(AVRC_EVT_TRACK_REACHED_START) 526 CASE_RETURN_STR(AVRC_EVT_PLAY_POS_CHANGED) 527 CASE_RETURN_STR(AVRC_EVT_BATTERY_STATUS_CHANGE) 528 CASE_RETURN_STR(AVRC_EVT_SYSTEM_STATUS_CHANGE) 529 CASE_RETURN_STR(AVRC_EVT_APP_SETTING_CHANGE) 530 CASE_RETURN_STR(AVRC_EVT_VOLUME_CHANGE) 531 532 default: 533 return "Unhandled Event ID"; 534 } 535 } 536 537 const char* dump_rc_pdu(UINT8 pdu) 538 { 539 switch(pdu) 540 { 541 CASE_RETURN_STR(AVRC_PDU_LIST_PLAYER_APP_ATTR) 542 CASE_RETURN_STR(AVRC_PDU_LIST_PLAYER_APP_VALUES) 543 CASE_RETURN_STR(AVRC_PDU_GET_CUR_PLAYER_APP_VALUE) 544 CASE_RETURN_STR(AVRC_PDU_SET_PLAYER_APP_VALUE) 545 CASE_RETURN_STR(AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT) 546 CASE_RETURN_STR(AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT) 547 CASE_RETURN_STR(AVRC_PDU_INFORM_DISPLAY_CHARSET) 548 CASE_RETURN_STR(AVRC_PDU_INFORM_BATTERY_STAT_OF_CT) 549 CASE_RETURN_STR(AVRC_PDU_GET_ELEMENT_ATTR) 550 CASE_RETURN_STR(AVRC_PDU_GET_PLAY_STATUS) 551 CASE_RETURN_STR(AVRC_PDU_REGISTER_NOTIFICATION) 552 CASE_RETURN_STR(AVRC_PDU_REQUEST_CONTINUATION_RSP) 553 CASE_RETURN_STR(AVRC_PDU_ABORT_CONTINUATION_RSP) 554 CASE_RETURN_STR(AVRC_PDU_SET_ABSOLUTE_VOLUME) 555 default: 556 return "Unknown PDU"; 557 } 558 } 559 560 561
