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/******************************************************************************
*
* Copyright (C) 2006-2013 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 "common/bt_target.h"
#include "stack/avrc_api.h"
#include "stack/avrc_defs.h"
#include "avrc_int.h"
#include "common/bt_defs.h"
#if (defined(AVRC_INCLUDED) && AVRC_INCLUDED == TRUE)
/*****************************************************************************
** Global data
*****************************************************************************/
#if (AVRC_METADATA_INCLUDED == TRUE)
/*******************************************************************************
**
** Function avrc_pars_vendor_rsp
**
** Description This function parses the vendor specific 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
**
*******************************************************************************/
static tAVRC_STS avrc_pars_vendor_rsp(tAVRC_MSG_VENDOR *p_msg, tAVRC_RESPONSE *p_result)
{
tAVRC_STS status = AVRC_STS_NO_ERROR;
UINT8 *p;
UINT16 len;
UINT8 eventid = 0;
/* Check the vendor data */
if (p_msg->vendor_len == 0) {
return AVRC_STS_NO_ERROR;
}
if (p_msg->p_vendor_data == NULL) {
return AVRC_STS_INTERNAL_ERR;
}
p = p_msg->p_vendor_data;
BE_STREAM_TO_UINT8 (p_result->pdu, p);
p++; /* skip the reserved/packe_type byte */
BE_STREAM_TO_UINT16 (len, p);
AVRC_TRACE_DEBUG("avrc_pars_vendor_rsp() ctype:0x%x pdu:0x%x, len:%d/0x%x", p_msg->hdr.ctype, p_result->pdu, len, len);
if (p_msg->hdr.ctype == AVRC_RSP_REJ) {
p_result->rsp.status = *p;
return p_result->rsp.status;
}
switch (p_result->pdu) {
/* case AVRC_PDU_REQUEST_CONTINUATION_RSP: 0x40 */
/* case AVRC_PDU_ABORT_CONTINUATION_RSP: 0x41 */
#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
case AVRC_PDU_SET_ABSOLUTE_VOLUME: /* 0x50 */
if (len != 1) {
status = AVRC_STS_INTERNAL_ERR;
} else {
BE_STREAM_TO_UINT8 (p_result->volume.volume, p);
}
break;
#endif /* (AVRC_ADV_CTRL_INCLUDED == TRUE) */
case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
BE_STREAM_TO_UINT8 (eventid, p);
if (AVRC_EVT_VOLUME_CHANGE == eventid
&& (AVRC_RSP_CHANGED == p_msg->hdr.ctype || AVRC_RSP_INTERIM == p_msg->hdr.ctype
|| AVRC_RSP_REJ == p_msg->hdr.ctype || AVRC_RSP_NOT_IMPL == p_msg->hdr.ctype)) {
p_result->reg_notif.status = p_msg->hdr.ctype;
p_result->reg_notif.event_id = eventid;
BE_STREAM_TO_UINT8 (p_result->reg_notif.param.volume, p);
}
// todo: parse the response for other event_ids
AVRC_TRACE_DEBUG("avrc_pars_vendor_rsp PDU reg notif response:event 0x%x", eventid);
break;
#endif /* (AVRC_ADV_CTRL_INCLUDED == TRUE) */
case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */
BE_STREAM_TO_UINT8 (p_result->get_caps.capability_id, p);
BE_STREAM_TO_UINT8 (p_result->get_caps.count, p);
if (p_result->get_caps.capability_id == AVRC_CAP_EVENTS_SUPPORTED) {
if (p_result->get_caps.count > AVRC_CAP_MAX_NUM_EVT_ID) {
status = AVRC_STS_INTERNAL_ERR;
} else {
BE_STREAM_TO_ARRAY(p, p_result->get_caps.param.event_id, p_result->get_caps.count);
}
} else if (p_result->get_caps.capability_id == AVRC_CAP_COMPANY_ID) {
if (p_result->get_caps.count > AVRC_CAP_MAX_NUM_COMP_ID) {
status = AVRC_STS_INTERNAL_ERR;
} else {
for (int i = 0; i < p_result->get_caps.count; ++i) {
BE_STREAM_TO_UINT24(p_result->get_caps.param.company_id[i], p);
}
}
}
break;
default:
status = AVRC_STS_BAD_CMD;
break;
}
return status;
}
/*******************************************************************************
**
** Function AVRC_ParsResponse
**
** Description This function is a superset of AVRC_ParsMetadata to parse the response.
**
** 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_ParsResponse (tAVRC_MSG *p_msg, tAVRC_RESPONSE *p_result)
{
tAVRC_STS status = AVRC_STS_INTERNAL_ERR;
UINT16 id;
if (p_msg && p_result) {
switch (p_msg->hdr.opcode) {
case AVRC_OP_VENDOR: /* 0x00 Vendor-dependent commands */
status = avrc_pars_vendor_rsp(&p_msg->vendor, p_result);
break;
case AVRC_OP_PASS_THRU: /* 0x7C panel subunit opcode */
status = avrc_pars_pass_thru(&p_msg->pass, &id);
if (status == AVRC_STS_NO_ERROR) {
p_result->pdu = (UINT8)id;
}
break;
default:
AVRC_TRACE_ERROR("AVRC_ParsResponse() unknown opcode:0x%x", p_msg->hdr.opcode);
break;
}
p_result->rsp.opcode = p_msg->hdr.opcode;
p_result->rsp.status = status;
}
return status;
}
#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
#endif /* #if (defined(AVRC_INCLUDED) && AVRC_INCLUDED == TRUE) */
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