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