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/******************************************************************************
*
* Copyright (C) 2003-2016 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.
*
******************************************************************************/
#include <string.h>
#include "avrc_api.h"
#include "avrc_int.h"
#include "bt_common.h"
#if (AVRC_METADATA_INCLUDED == TRUE)
/**************************************************************************
*
* Function AVRC_IsValidAvcType
*
* Description Check if correct AVC type is specified
*
* Returns returns true if it is valid
*
*
******************************************************************************/
bool AVRC_IsValidAvcType(uint8_t pdu_id, uint8_t avc_type) {
bool result = false;
if (avc_type < AVRC_RSP_NOT_IMPL) /* command msg */
{
switch (pdu_id) {
case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */
case AVRC_PDU_LIST_PLAYER_APP_ATTR: /* 0x11 */
case AVRC_PDU_LIST_PLAYER_APP_VALUES: /* 0x12 */
case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: /* 0x13 */
case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: /* 0x15 */
case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT: /* 0x16 */
case AVRC_PDU_GET_ELEMENT_ATTR: /* 0x20 */
case AVRC_PDU_GET_PLAY_STATUS: /* 0x30 */
if (avc_type == AVRC_CMD_STATUS) result = true;
break;
case AVRC_PDU_SET_PLAYER_APP_VALUE: /* 0x14 */
case AVRC_PDU_INFORM_DISPLAY_CHARSET: /* 0x17 */
case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT: /* 0x18 */
case AVRC_PDU_REQUEST_CONTINUATION_RSP: /* 0x40 */
case AVRC_PDU_ABORT_CONTINUATION_RSP: /* 0x41 */
if (avc_type == AVRC_CMD_CTRL) result = true;
break;
case AVRC_PDU_GET_FOLDER_ITEMS: /* 0x71 */
result = true;
break;
case AVRC_PDU_SET_ABSOLUTE_VOLUME: /* 0x50 */
case AVRC_PDU_SET_ADDRESSED_PLAYER: /* 0x60 */
case AVRC_PDU_PLAY_ITEM: /* 0x74 */
case AVRC_PDU_ADD_TO_NOW_PLAYING: /* 0x90 */
if (avc_type == AVRC_CMD_CTRL) result = true;
break;
case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
if (avc_type == AVRC_CMD_NOTIF) result = true;
break;
}
} else /* response msg */
{
if (avc_type >= AVRC_RSP_NOT_IMPL && avc_type <= AVRC_RSP_INTERIM)
result = true;
}
return result;
}
/*******************************************************************************
*
* Function avrc_is_valid_player_attrib_value
*
* Description Check if the given attrib value is valid for its attribute
*
* Returns returns true if it is valid
*
******************************************************************************/
bool avrc_is_valid_player_attrib_value(uint8_t attrib, uint8_t value) {
bool result = false;
switch (attrib) {
case AVRC_PLAYER_SETTING_EQUALIZER:
if ((value > 0) && (value <= AVRC_PLAYER_VAL_ON)) result = true;
break;
case AVRC_PLAYER_SETTING_REPEAT:
if ((value > 0) && (value <= AVRC_PLAYER_VAL_GROUP_REPEAT)) result = true;
break;
case AVRC_PLAYER_SETTING_SHUFFLE:
case AVRC_PLAYER_SETTING_SCAN:
if ((value > 0) && (value <= AVRC_PLAYER_VAL_GROUP_SHUFFLE))
result = true;
break;
}
if (attrib >= AVRC_PLAYER_SETTING_LOW_MENU_EXT) result = true;
if (!result) {
AVRC_TRACE_ERROR(" %s found not matching attrib(x%x)-value(x%x) pair!",
__func__, attrib, value);
}
return result;
}
/*******************************************************************************
*
* Function AVRC_IsValidPlayerAttr
*
* Description Check if the given attrib value is a valid one
*
* Returns returns true if it is valid
*
******************************************************************************/
bool AVRC_IsValidPlayerAttr(uint8_t attr) {
bool result = false;
if ((attr >= AVRC_PLAYER_SETTING_EQUALIZER &&
attr <= AVRC_PLAYER_SETTING_SCAN) ||
(attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT)) {
result = true;
}
return result;
}
/*******************************************************************************
*
* Function avrc_pars_pass_thru
*
* Description This function parses the pass thru commands defined by
* Bluetooth SIG
*
* Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed
* successfully.
* Otherwise, the error code defined by AVRCP 1.4
*
******************************************************************************/
tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS* p_msg,
uint16_t* p_vendor_unique_id) {
uint8_t* p_data;
uint32_t co_id;
uint16_t id;
tAVRC_STS status = AVRC_STS_BAD_CMD;
if (p_msg->op_id == AVRC_ID_VENDOR &&
p_msg->pass_len == AVRC_PASS_THRU_GROUP_LEN) {
p_data = p_msg->p_pass_data;
AVRC_BE_STREAM_TO_CO_ID(co_id, p_data);
if (co_id == AVRC_CO_METADATA) {
BE_STREAM_TO_UINT16(id, p_data);
if (AVRC_IS_VALID_GROUP(id)) {
*p_vendor_unique_id = id;
status = AVRC_STS_NO_ERROR;
}
}
}
return status;
}
/*******************************************************************************
*
* Function avrc_opcode_from_pdu
*
* Description This function returns the opcode of the given pdu
*
* Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
*
******************************************************************************/
uint8_t avrc_opcode_from_pdu(uint8_t pdu) {
uint8_t opcode = 0;
switch (pdu) {
case AVRC_PDU_SET_BROWSED_PLAYER:
case AVRC_PDU_GET_FOLDER_ITEMS:
case AVRC_PDU_CHANGE_PATH:
case AVRC_PDU_GET_ITEM_ATTRIBUTES:
case AVRC_PDU_SEARCH:
case AVRC_PDU_GENERAL_REJECT:
case AVRC_PDU_GET_TOTAL_NUM_OF_ITEMS:
opcode = AVRC_OP_BROWSE;
break;
case AVRC_PDU_NEXT_GROUP:
case AVRC_PDU_PREV_GROUP: /* pass thru */
opcode = AVRC_OP_PASS_THRU;
break;
default: /* vendor */
opcode = AVRC_OP_VENDOR;
break;
}
return opcode;
}
/*******************************************************************************
*
* Function avrc_is_valid_opcode
*
* Description This function returns the opcode of the given pdu
*
* Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
*
******************************************************************************/
bool avrc_is_valid_opcode(uint8_t opcode) {
bool is_valid = false;
switch (opcode) {
case AVRC_OP_BROWSE:
case AVRC_OP_PASS_THRU:
case AVRC_OP_VENDOR:
is_valid = true;
break;
}
return is_valid;
}
#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
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