| /****************************************************************************** |
| * |
| * Copyright (c) 2014 The Android Open Source Project |
| * Copyright (C) 2009-2012 Broadcom Corporation |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| |
| /************************************************************************************ |
| * |
| * Filename: btif_util.c |
| * |
| * Description: Miscellaneous helper functions |
| * |
| * |
| ***********************************************************************************/ |
| |
| #define LOG_TAG "bt_btif_util" |
| |
| #include "btif_util.h" |
| |
| #include <assert.h> |
| #include <ctype.h> |
| #include <netinet/in.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <hardware/bt_av.h> |
| |
| #include "avrc_defs.h" |
| #include "bta_ag_api.h" |
| #include "bta_api.h" |
| #include "bta_av_api.h" |
| #include "bta_hf_client_api.h" |
| #include "bta_hh_api.h" |
| #include "bte.h" |
| #include "btif_common.h" |
| #include "btif_dm.h" |
| #include "btu.h" |
| #include "bt_common.h" |
| |
| /************************************************************************************ |
| ** Constants & Macros |
| ************************************************************************************/ |
| #define ISDIGIT(a) ((a>='0') && (a<='9')) |
| #define ISXDIGIT(a) (((a>='0') && (a<='9'))||((a>='A') && (a<='F'))||((a>='a') && (a<='f'))) |
| |
| /************************************************************************************ |
| ** Local type definitions |
| ************************************************************************************/ |
| |
| /************************************************************************************ |
| ** Static variables |
| ************************************************************************************/ |
| |
| /************************************************************************************ |
| ** Static functions |
| ************************************************************************************/ |
| |
| /************************************************************************************ |
| ** Externs |
| ************************************************************************************/ |
| |
| /************************************************************************************ |
| ** Functions |
| ************************************************************************************/ |
| |
| /***************************************************************************** |
| ** Logging helper functions |
| *****************************************************************************/ |
| |
| UINT32 devclass2uint(DEV_CLASS dev_class) |
| { |
| UINT32 cod = 0; |
| |
| if(dev_class != NULL) |
| { |
| /* if COD is 0, irrespective of the device type set it to Unclassified device */ |
| cod = (dev_class[2]) | (dev_class[1] << 8) | (dev_class[0] << 16); |
| } |
| return cod; |
| } |
| void uint2devclass(UINT32 cod, DEV_CLASS dev_class) |
| { |
| dev_class[2] = (UINT8)cod; |
| dev_class[1] = (UINT8)(cod >> 8); |
| dev_class[0] = (UINT8)(cod >> 16); |
| } |
| |
| static const UINT8 sdp_base_uuid[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, |
| 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB}; |
| |
| void uuid16_to_uuid128(uint16_t uuid16, bt_uuid_t* uuid128) |
| { |
| uint16_t uuid16_bo; |
| memset(uuid128, 0, sizeof(bt_uuid_t)); |
| |
| memcpy(uuid128->uu, sdp_base_uuid, MAX_UUID_SIZE); |
| uuid16_bo = ntohs(uuid16); |
| memcpy(uuid128->uu + 2, &uuid16_bo, sizeof(uint16_t)); |
| } |
| |
| bool string_to_uuid(const char *str, bt_uuid_t *p_uuid) |
| { |
| assert(p_uuid); |
| if (str == NULL) |
| return false; |
| |
| uint32_t uuid0, uuid4; |
| uint16_t uuid1, uuid2, uuid3, uuid5; |
| |
| int rc = sscanf(str, "%08x-%04hx-%04hx-%04hx-%08x%04hx", |
| &uuid0, &uuid1, &uuid2, &uuid3, &uuid4, &uuid5); |
| if (rc != 6) |
| return false; |
| |
| uuid0 = htonl(uuid0); |
| uuid1 = htons(uuid1); |
| uuid2 = htons(uuid2); |
| uuid3 = htons(uuid3); |
| uuid4 = htonl(uuid4); |
| uuid5 = htons(uuid5); |
| |
| memcpy(&(p_uuid->uu[0]), &uuid0, 4); |
| memcpy(&(p_uuid->uu[4]), &uuid1, 2); |
| memcpy(&(p_uuid->uu[6]), &uuid2, 2); |
| memcpy(&(p_uuid->uu[8]), &uuid3, 2); |
| memcpy(&(p_uuid->uu[10]), &uuid4, 4); |
| memcpy(&(p_uuid->uu[14]), &uuid5, 2); |
| |
| return true; |
| } |
| |
| void uuid_to_string_legacy(bt_uuid_t *p_uuid, char *str) |
| { |
| uint32_t uuid0, uuid4; |
| uint16_t uuid1, uuid2, uuid3, uuid5; |
| |
| memcpy(&uuid0, &(p_uuid->uu[0]), 4); |
| memcpy(&uuid1, &(p_uuid->uu[4]), 2); |
| memcpy(&uuid2, &(p_uuid->uu[6]), 2); |
| memcpy(&uuid3, &(p_uuid->uu[8]), 2); |
| memcpy(&uuid4, &(p_uuid->uu[10]), 4); |
| memcpy(&uuid5, &(p_uuid->uu[14]), 2); |
| |
| sprintf((char *)str, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x", |
| ntohl(uuid0), ntohs(uuid1), |
| ntohs(uuid2), ntohs(uuid3), |
| ntohl(uuid4), ntohs(uuid5)); |
| return; |
| } |
| |
| /***************************************************************************** |
| ** Function ascii_2_hex |
| ** |
| ** Description This function converts an ASCII string into HEX |
| ** |
| ** Returns the number of hex bytes filled. |
| */ |
| int ascii_2_hex (const char *p_ascii, int len, UINT8 *p_hex) |
| { |
| int x; |
| UINT8 c; |
| |
| for (x = 0; (x < len) && (*p_ascii); x++) |
| { |
| if (ISDIGIT (*p_ascii)) |
| c = (*p_ascii - '0') << 4; |
| else |
| c = (toupper(*p_ascii) - 'A' + 10) << 4; |
| |
| p_ascii++; |
| if (*p_ascii) |
| { |
| if (ISDIGIT (*p_ascii)) |
| c |= (*p_ascii - '0'); |
| else |
| c |= (toupper(*p_ascii) - 'A' + 10); |
| |
| p_ascii++; |
| } |
| *p_hex++ = c; |
| } |
| |
| return (x); |
| } |
| |
| const char* dump_dm_search_event(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTA_DM_INQ_RES_EVT) |
| CASE_RETURN_STR(BTA_DM_INQ_CMPL_EVT) |
| CASE_RETURN_STR(BTA_DM_DISC_RES_EVT) |
| CASE_RETURN_STR(BTA_DM_DISC_BLE_RES_EVT) |
| CASE_RETURN_STR(BTA_DM_DISC_CMPL_EVT) |
| CASE_RETURN_STR(BTA_DM_DI_DISC_CMPL_EVT) |
| CASE_RETURN_STR(BTA_DM_SEARCH_CANCEL_CMPL_EVT) |
| |
| default: |
| return "UNKNOWN MSG ID"; |
| } |
| } |
| |
| const char* dump_property_type(bt_property_type_t type) |
| { |
| switch(type) |
| { |
| CASE_RETURN_STR(BT_PROPERTY_BDNAME) |
| CASE_RETURN_STR(BT_PROPERTY_BDADDR) |
| CASE_RETURN_STR(BT_PROPERTY_UUIDS) |
| CASE_RETURN_STR(BT_PROPERTY_CLASS_OF_DEVICE) |
| CASE_RETURN_STR(BT_PROPERTY_TYPE_OF_DEVICE) |
| CASE_RETURN_STR(BT_PROPERTY_REMOTE_RSSI) |
| CASE_RETURN_STR(BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT) |
| CASE_RETURN_STR(BT_PROPERTY_ADAPTER_BONDED_DEVICES) |
| CASE_RETURN_STR(BT_PROPERTY_ADAPTER_SCAN_MODE) |
| CASE_RETURN_STR(BT_PROPERTY_REMOTE_FRIENDLY_NAME) |
| |
| default: |
| return "UNKNOWN PROPERTY ID"; |
| } |
| } |
| |
| const char* dump_dm_event(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTA_DM_ENABLE_EVT) |
| CASE_RETURN_STR(BTA_DM_DISABLE_EVT) |
| CASE_RETURN_STR(BTA_DM_PIN_REQ_EVT) |
| CASE_RETURN_STR(BTA_DM_AUTH_CMPL_EVT) |
| CASE_RETURN_STR(BTA_DM_AUTHORIZE_EVT) |
| CASE_RETURN_STR(BTA_DM_LINK_UP_EVT) |
| CASE_RETURN_STR(BTA_DM_LINK_DOWN_EVT) |
| CASE_RETURN_STR(BTA_DM_SIG_STRENGTH_EVT) |
| CASE_RETURN_STR(BTA_DM_BUSY_LEVEL_EVT) |
| CASE_RETURN_STR(BTA_DM_BOND_CANCEL_CMPL_EVT) |
| CASE_RETURN_STR(BTA_DM_SP_CFM_REQ_EVT) |
| CASE_RETURN_STR(BTA_DM_SP_KEY_NOTIF_EVT) |
| CASE_RETURN_STR(BTA_DM_SP_RMT_OOB_EVT) |
| CASE_RETURN_STR(BTA_DM_SP_KEYPRESS_EVT) |
| CASE_RETURN_STR(BTA_DM_ROLE_CHG_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_KEY_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_SEC_REQ_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_PASSKEY_NOTIF_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_PASSKEY_REQ_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_OOB_REQ_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_LOCAL_IR_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_LOCAL_ER_EVT) |
| CASE_RETURN_STR(BTA_DM_BLE_AUTH_CMPL_EVT) |
| CASE_RETURN_STR(BTA_DM_DEV_UNPAIRED_EVT) |
| CASE_RETURN_STR(BTA_DM_HW_ERROR_EVT) |
| CASE_RETURN_STR(BTA_DM_ENER_INFO_READ) |
| |
| default: |
| return "UNKNOWN DM EVENT"; |
| } |
| } |
| |
| const char* dump_hf_event(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTA_AG_ENABLE_EVT) |
| CASE_RETURN_STR(BTA_AG_REGISTER_EVT) |
| CASE_RETURN_STR(BTA_AG_OPEN_EVT) |
| CASE_RETURN_STR(BTA_AG_CLOSE_EVT) |
| CASE_RETURN_STR(BTA_AG_CONN_EVT) |
| CASE_RETURN_STR(BTA_AG_AUDIO_OPEN_EVT) |
| CASE_RETURN_STR(BTA_AG_AUDIO_CLOSE_EVT) |
| CASE_RETURN_STR(BTA_AG_SPK_EVT) |
| CASE_RETURN_STR(BTA_AG_MIC_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_CKPD_EVT) |
| CASE_RETURN_STR(BTA_AG_DISABLE_EVT) |
| #if (BTM_WBS_INCLUDED == TRUE ) |
| CASE_RETURN_STR(BTA_AG_WBS_EVT) |
| #endif |
| CASE_RETURN_STR(BTA_AG_AT_A_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_D_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_CHLD_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_CHUP_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_CIND_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_VTS_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_BINP_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_BLDN_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_BVRA_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_NREC_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_CNUM_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_BTRH_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_CLCC_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_COPS_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_UNAT_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_CBC_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_BAC_EVT) |
| CASE_RETURN_STR(BTA_AG_AT_BCS_EVT) |
| |
| default: |
| return "UNKNOWN MSG ID"; |
| } |
| } |
| |
| const char* dump_hf_client_event(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTA_HF_CLIENT_ENABLE_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_REGISTER_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_OPEN_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_CLOSE_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_CONN_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_OPEN_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_MSBC_OPEN_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_CLOSE_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_SPK_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_MIC_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_DISABLE_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_IND_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_VOICE_REC_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_OPERATOR_NAME_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_CLIP_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_CCWA_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_AT_RESULT_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_CLCC_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_CNUM_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_BTRH_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_BSIR_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_BINP_EVT) |
| CASE_RETURN_STR(BTA_HF_CLIENT_RING_INDICATION) |
| default: |
| return "UNKNOWN MSG ID"; |
| } |
| } |
| |
| const char* dump_hh_event(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTA_HH_ENABLE_EVT) |
| CASE_RETURN_STR(BTA_HH_DISABLE_EVT) |
| CASE_RETURN_STR(BTA_HH_OPEN_EVT) |
| CASE_RETURN_STR(BTA_HH_CLOSE_EVT) |
| CASE_RETURN_STR(BTA_HH_GET_DSCP_EVT) |
| CASE_RETURN_STR(BTA_HH_GET_PROTO_EVT) |
| CASE_RETURN_STR(BTA_HH_GET_RPT_EVT) |
| CASE_RETURN_STR(BTA_HH_GET_IDLE_EVT) |
| CASE_RETURN_STR(BTA_HH_SET_PROTO_EVT) |
| CASE_RETURN_STR(BTA_HH_SET_RPT_EVT) |
| CASE_RETURN_STR(BTA_HH_SET_IDLE_EVT) |
| CASE_RETURN_STR(BTA_HH_VC_UNPLUG_EVT) |
| CASE_RETURN_STR(BTA_HH_ADD_DEV_EVT) |
| CASE_RETURN_STR(BTA_HH_RMV_DEV_EVT) |
| CASE_RETURN_STR(BTA_HH_API_ERR_EVT) |
| default: |
| return "UNKNOWN MSG ID"; |
| } |
| } |
| |
| const char* dump_hf_conn_state(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTHF_CONNECTION_STATE_DISCONNECTED) |
| CASE_RETURN_STR(BTHF_CONNECTION_STATE_CONNECTING) |
| CASE_RETURN_STR(BTHF_CONNECTION_STATE_CONNECTED) |
| CASE_RETURN_STR(BTHF_CONNECTION_STATE_SLC_CONNECTED) |
| CASE_RETURN_STR(BTHF_CONNECTION_STATE_DISCONNECTING) |
| default: |
| return "UNKNOWN MSG ID"; |
| } |
| } |
| |
| const char* dump_hf_call_state(bthf_call_state_t call_state) |
| { |
| switch(call_state) |
| { |
| CASE_RETURN_STR(BTHF_CALL_STATE_IDLE) |
| CASE_RETURN_STR(BTHF_CALL_STATE_HELD) |
| CASE_RETURN_STR(BTHF_CALL_STATE_DIALING) |
| CASE_RETURN_STR(BTHF_CALL_STATE_ALERTING) |
| CASE_RETURN_STR(BTHF_CALL_STATE_INCOMING) |
| CASE_RETURN_STR(BTHF_CALL_STATE_WAITING) |
| CASE_RETURN_STR(BTHF_CALL_STATE_ACTIVE) |
| default: |
| return "UNKNOWN CALL STATE"; |
| } |
| } |
| |
| const char* dump_thread_evt(bt_cb_thread_evt evt) |
| { |
| switch(evt) |
| { |
| CASE_RETURN_STR(ASSOCIATE_JVM) |
| CASE_RETURN_STR(DISASSOCIATE_JVM) |
| |
| default: |
| return "unknown thread evt"; |
| } |
| } |
| |
| const char* dump_hf_audio_state(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTHF_AUDIO_STATE_DISCONNECTED) |
| CASE_RETURN_STR(BTHF_AUDIO_STATE_CONNECTING) |
| CASE_RETURN_STR(BTHF_AUDIO_STATE_CONNECTED) |
| CASE_RETURN_STR(BTHF_AUDIO_STATE_DISCONNECTING) |
| default: |
| return "UNKNOWN MSG ID"; |
| |
| } |
| } |
| |
| const char* dump_av_conn_state(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTAV_CONNECTION_STATE_DISCONNECTED) |
| CASE_RETURN_STR(BTAV_CONNECTION_STATE_CONNECTING) |
| CASE_RETURN_STR(BTAV_CONNECTION_STATE_CONNECTED) |
| CASE_RETURN_STR(BTAV_CONNECTION_STATE_DISCONNECTING) |
| default: |
| return "UNKNOWN MSG ID"; |
| } |
| } |
| |
| const char* dump_av_audio_state(UINT16 event) |
| { |
| switch(event) |
| { |
| CASE_RETURN_STR(BTAV_AUDIO_STATE_REMOTE_SUSPEND) |
| CASE_RETURN_STR(BTAV_AUDIO_STATE_STOPPED) |
| CASE_RETURN_STR(BTAV_AUDIO_STATE_STARTED) |
| default: |
| return "UNKNOWN MSG ID"; |
| } |
| } |
| |
| const char* dump_adapter_scan_mode(bt_scan_mode_t mode) |
| { |
| switch(mode) |
| { |
| CASE_RETURN_STR(BT_SCAN_MODE_NONE) |
| CASE_RETURN_STR(BT_SCAN_MODE_CONNECTABLE) |
| CASE_RETURN_STR(BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE) |
| |
| default: |
| return "unknown scan mode"; |
| } |
| } |
| |
| const char* dump_bt_status(bt_status_t status) |
| { |
| switch(status) |
| { |
| CASE_RETURN_STR(BT_STATUS_SUCCESS) |
| CASE_RETURN_STR(BT_STATUS_FAIL) |
| CASE_RETURN_STR(BT_STATUS_NOT_READY) |
| CASE_RETURN_STR(BT_STATUS_NOMEM) |
| CASE_RETURN_STR(BT_STATUS_BUSY) |
| CASE_RETURN_STR(BT_STATUS_UNSUPPORTED) |
| |
| default: |
| return "unknown scan mode"; |
| } |
| } |
| |
| const char *dump_rc_event(UINT8 event) |
| { |
| switch(event) { |
| CASE_RETURN_STR(BTA_AV_RC_OPEN_EVT) |
| CASE_RETURN_STR(BTA_AV_RC_CLOSE_EVT) |
| CASE_RETURN_STR(BTA_AV_REMOTE_CMD_EVT) |
| CASE_RETURN_STR(BTA_AV_REMOTE_RSP_EVT) |
| CASE_RETURN_STR(BTA_AV_VENDOR_CMD_EVT) |
| CASE_RETURN_STR(BTA_AV_VENDOR_RSP_EVT) |
| CASE_RETURN_STR(BTA_AV_META_MSG_EVT) |
| CASE_RETURN_STR(BTA_AV_RC_FEAT_EVT) |
| default: |
| return "UNKNOWN_EVENT"; |
| } |
| } |
| |
| const char * dump_rc_notification_event_id(UINT8 event_id) |
| { |
| switch(event_id) |
| { |
| CASE_RETURN_STR(AVRC_EVT_PLAY_STATUS_CHANGE) |
| CASE_RETURN_STR(AVRC_EVT_TRACK_CHANGE) |
| CASE_RETURN_STR(AVRC_EVT_TRACK_REACHED_END) |
| CASE_RETURN_STR(AVRC_EVT_TRACK_REACHED_START) |
| CASE_RETURN_STR(AVRC_EVT_PLAY_POS_CHANGED) |
| CASE_RETURN_STR(AVRC_EVT_BATTERY_STATUS_CHANGE) |
| CASE_RETURN_STR(AVRC_EVT_SYSTEM_STATUS_CHANGE) |
| CASE_RETURN_STR(AVRC_EVT_APP_SETTING_CHANGE) |
| CASE_RETURN_STR(AVRC_EVT_VOLUME_CHANGE) |
| |
| default: |
| return "Unhandled Event ID"; |
| } |
| } |
| |
| const char* dump_rc_pdu(UINT8 pdu) |
| { |
| switch(pdu) |
| { |
| CASE_RETURN_STR(AVRC_PDU_LIST_PLAYER_APP_ATTR) |
| CASE_RETURN_STR(AVRC_PDU_LIST_PLAYER_APP_VALUES) |
| CASE_RETURN_STR(AVRC_PDU_GET_CUR_PLAYER_APP_VALUE) |
| CASE_RETURN_STR(AVRC_PDU_SET_PLAYER_APP_VALUE) |
| CASE_RETURN_STR(AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT) |
| CASE_RETURN_STR(AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT) |
| CASE_RETURN_STR(AVRC_PDU_INFORM_DISPLAY_CHARSET) |
| CASE_RETURN_STR(AVRC_PDU_INFORM_BATTERY_STAT_OF_CT) |
| CASE_RETURN_STR(AVRC_PDU_GET_ELEMENT_ATTR) |
| CASE_RETURN_STR(AVRC_PDU_GET_PLAY_STATUS) |
| CASE_RETURN_STR(AVRC_PDU_REGISTER_NOTIFICATION) |
| CASE_RETURN_STR(AVRC_PDU_REQUEST_CONTINUATION_RSP) |
| CASE_RETURN_STR(AVRC_PDU_ABORT_CONTINUATION_RSP) |
| CASE_RETURN_STR(AVRC_PDU_SET_ABSOLUTE_VOLUME) |
| CASE_RETURN_STR(AVRC_PDU_SET_ADDRESSED_PLAYER) |
| CASE_RETURN_STR(AVRC_PDU_CHANGE_PATH) |
| CASE_RETURN_STR(AVRC_PDU_GET_CAPABILITIES) |
| default: |
| return "Unknown PDU"; |
| } |
| } |