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/*****************************************************************************
**
** Name: avrc_utils.c
**
** Description: Utility functions to validate AVRC command/response paramaters
**
** Copyright (c) 2003-2008, Broadcom Corp., All Rights Reserved.
** Broadcom Bluetooth Core. Proprietary and confidential.
**
*****************************************************************************/
#include <string.h>
#include "gki.h"
#include "avrc_api.h"
#include "avrc_int.h"
#if (AVRC_METADATA_INCLUDED == TRUE)
/**************************************************************************
**
** Function AVRC_IsValidAvcType
**
** Description Check if correct AVC type is specified
**
** Returns returns TRUE if it is valid
**
**
*******************************************************************************/
BOOLEAN AVRC_IsValidAvcType(UINT8 pdu_id, UINT8 avc_type)
{
BOOLEAN 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_REGISTER_NOTIFICATION: /* 0x31 */
if (avc_type == AVRC_CMD_NOTIF)
result=TRUE;
break;
#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
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;
#endif
}
}
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
**
*******************************************************************************/
BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value)
{
BOOLEAN 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 &&
attrib <= AVRC_PLAYER_SETTING_HIGH_MENU_EXT)
result = TRUE;
if (!result)
AVRC_TRACE_ERROR2("avrc_is_valid_player_attrib_value() found not matching attrib(x%x)-value(x%x) pair!", 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
**
*******************************************************************************/
BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr)
{
BOOLEAN result=FALSE;
if ( (attr >= AVRC_PLAYER_SETTING_EQUALIZER && attr <= AVRC_PLAYER_SETTING_SCAN) ||
(attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT && attr <= AVRC_PLAYER_SETTING_HIGH_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 *p_vendor_unique_id)
{
UINT8 *p_data;
UINT32 co_id;
UINT16 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 avrc_opcode_from_pdu(UINT8 pdu)
{
UINT8 opcode = 0;
switch (pdu)
{
#if (AVCT_BROWSE_INCLUDED == TRUE)
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:
opcode = AVRC_OP_BROWSE;
break;
#endif /* AVCT_BROWSE_INCLUDED */
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
**
*******************************************************************************/
BOOLEAN avrc_is_valid_opcode(UINT8 opcode)
{
BOOLEAN 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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