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https://github.com/espressif/esp-idf.git
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61bd453c15
1. Add more notification events to the enum according to the event list in AVRCP specification. 2. Add API and callback events for basic AVRCP target functionalities to do init, deinit, callback-registration, connection status indication. 3. Implement API to set/get supported PASSTHROUGH command on local AVRCP TG, implement callback events for remote passthrough command indication. 4. Implement API to set/get supported notification eventIDs on local AVRCP TG, implement API to send event notifications to remote CT. \ Currently supported event in TG only includes ESP_AVRC_RN_VOLUME_CHANGE(0xd), which can be extended in later commits. 5. Implement callback events for SetAbsoluteVolume command indication on TG. 6. Add limitation of event_ids supported in RegisterNotification command in CT. The supported event_ids include: \ ESP_AVRC_RN_PLAY_STATUS_CHANGE(0x1), ESP_AVRC_RN_TRACK_CHANGE(0x2), ESP_AVRC_RN_PLAY_POS_CHANGE(0x5), ESP_AVRC_RN_VOLUME_CHANGE(0xd). 7. Add feature bit mask in parameter of callback event ESP_AVRC_CT_REMOTE_FEATURES_EVT for peer feature information got from SDP. 8. Add API and callback event to AVRCP CT to retrieve remote TG's supported notification event capabilities. 9. Modify data type for parameter of callback event ESP_AVRC_CT_CHANGE_NOTIFY_EVT. 10. Change AVRCP version from 1.3 to 1.4 for compatibility cause in using AbsoluteVolume feature. 11. Modify local AVRCP device to be category 1 as CT and category 2 as TG that applies to bluetooth headphones or speakers. 12. Update the use of AVRCP APIs and events in the two examples: a2dp_sink and a2dp_gatts_coex, which include the demo of volume control and notification.
166 lines
6.0 KiB
C
166 lines
6.0 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2006-2013 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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#include <string.h>
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#include "common/bt_target.h"
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#include "stack/avrc_api.h"
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#include "stack/avrc_defs.h"
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#include "avrc_int.h"
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#include "common/bt_defs.h"
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#if (defined(AVRC_INCLUDED) && AVRC_INCLUDED == TRUE)
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/*****************************************************************************
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** Global data
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*****************************************************************************/
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#if (AVRC_METADATA_INCLUDED == TRUE)
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/*******************************************************************************
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**
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** Function avrc_pars_vendor_rsp
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**
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** Description This function parses the vendor specific commands defined by
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** Bluetooth SIG
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**
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** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
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** Otherwise, the error code defined by AVRCP 1.4
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**
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*******************************************************************************/
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static tAVRC_STS avrc_pars_vendor_rsp(tAVRC_MSG_VENDOR *p_msg, tAVRC_RESPONSE *p_result)
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{
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tAVRC_STS status = AVRC_STS_NO_ERROR;
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UINT8 *p;
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UINT16 len;
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UINT8 eventid = 0;
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/* Check the vendor data */
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if (p_msg->vendor_len == 0) {
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return AVRC_STS_NO_ERROR;
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}
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if (p_msg->p_vendor_data == NULL) {
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return AVRC_STS_INTERNAL_ERR;
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}
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p = p_msg->p_vendor_data;
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BE_STREAM_TO_UINT8 (p_result->pdu, p);
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p++; /* skip the reserved/packe_type byte */
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BE_STREAM_TO_UINT16 (len, p);
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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);
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if (p_msg->hdr.ctype == AVRC_RSP_REJ) {
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p_result->rsp.status = *p;
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return p_result->rsp.status;
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}
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switch (p_result->pdu) {
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/* case AVRC_PDU_REQUEST_CONTINUATION_RSP: 0x40 */
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/* case AVRC_PDU_ABORT_CONTINUATION_RSP: 0x41 */
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#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
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case AVRC_PDU_SET_ABSOLUTE_VOLUME: /* 0x50 */
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if (len != 1) {
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status = AVRC_STS_INTERNAL_ERR;
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} else {
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BE_STREAM_TO_UINT8 (p_result->volume.volume, p);
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}
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break;
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#endif /* (AVRC_ADV_CTRL_INCLUDED == TRUE) */
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case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
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#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
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BE_STREAM_TO_UINT8 (eventid, p);
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if (AVRC_EVT_VOLUME_CHANGE == eventid
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&& (AVRC_RSP_CHANGED == p_msg->hdr.ctype || AVRC_RSP_INTERIM == p_msg->hdr.ctype
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|| AVRC_RSP_REJ == p_msg->hdr.ctype || AVRC_RSP_NOT_IMPL == p_msg->hdr.ctype)) {
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p_result->reg_notif.status = p_msg->hdr.ctype;
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p_result->reg_notif.event_id = eventid;
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BE_STREAM_TO_UINT8 (p_result->reg_notif.param.volume, p);
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}
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// todo: parse the response for other event_ids
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AVRC_TRACE_DEBUG("avrc_pars_vendor_rsp PDU reg notif response:event 0x%x", eventid);
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break;
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#endif /* (AVRC_ADV_CTRL_INCLUDED == TRUE) */
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case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */
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BE_STREAM_TO_UINT8 (p_result->get_caps.capability_id, p);
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BE_STREAM_TO_UINT8 (p_result->get_caps.count, p);
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if (p_result->get_caps.capability_id == AVRC_CAP_EVENTS_SUPPORTED) {
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if (p_result->get_caps.count > AVRC_CAP_MAX_NUM_EVT_ID) {
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status = AVRC_STS_INTERNAL_ERR;
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} else {
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BE_STREAM_TO_ARRAY(p, p_result->get_caps.param.event_id, p_result->get_caps.count);
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}
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} else if (p_result->get_caps.capability_id == AVRC_CAP_COMPANY_ID) {
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if (p_result->get_caps.count > AVRC_CAP_MAX_NUM_COMP_ID) {
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status = AVRC_STS_INTERNAL_ERR;
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} else {
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for (int i = 0; i < p_result->get_caps.count; ++i) {
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BE_STREAM_TO_UINT24(p_result->get_caps.param.company_id[i], p);
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}
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}
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}
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break;
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default:
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status = AVRC_STS_BAD_CMD;
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break;
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}
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return status;
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}
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/*******************************************************************************
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**
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** Function AVRC_ParsResponse
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**
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** Description This function is a superset of AVRC_ParsMetadata to parse the response.
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**
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** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
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** Otherwise, the error code defined by AVRCP 1.4
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**
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*******************************************************************************/
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tAVRC_STS AVRC_ParsResponse (tAVRC_MSG *p_msg, tAVRC_RESPONSE *p_result)
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{
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tAVRC_STS status = AVRC_STS_INTERNAL_ERR;
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UINT16 id;
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if (p_msg && p_result) {
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switch (p_msg->hdr.opcode) {
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case AVRC_OP_VENDOR: /* 0x00 Vendor-dependent commands */
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status = avrc_pars_vendor_rsp(&p_msg->vendor, p_result);
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break;
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case AVRC_OP_PASS_THRU: /* 0x7C panel subunit opcode */
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status = avrc_pars_pass_thru(&p_msg->pass, &id);
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if (status == AVRC_STS_NO_ERROR) {
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p_result->pdu = (UINT8)id;
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}
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break;
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default:
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AVRC_TRACE_ERROR("AVRC_ParsResponse() unknown opcode:0x%x", p_msg->hdr.opcode);
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break;
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}
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p_result->rsp.opcode = p_msg->hdr.opcode;
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p_result->rsp.status = status;
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}
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return status;
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}
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#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
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#endif /* #if (defined(AVRC_INCLUDED) && AVRC_INCLUDED == TRUE) */
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