1 /******************************************************************************
2 *
3 * Copyright 2016 The Android Open Source Project
4 * Copyright 2009-2012 Broadcom Corporation
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *
18 ******************************************************************************/
19
20 #define LOG_TAG "bt_btif_a2dp"
21
22 #include "btif_a2dp.h"
23
24 #include <stdbool.h>
25
26 #include "audio_a2dp_hw/include/audio_a2dp_hw.h"
27 #include "audio_hal_interface/a2dp_encoding.h"
28 #include "bta_av_api.h"
29 #include "btif_a2dp_control.h"
30 #include "btif_a2dp_sink.h"
31 #include "btif_a2dp_source.h"
32 #include "btif_av.h"
33 #include "btif_av_co.h"
34 #include "btif_hf.h"
35 #include "btif_util.h"
36 #include "osi/include/log.h"
37 #include "types/raw_address.h"
38
39 #include <base/logging.h>
40
btif_a2dp_on_idle(void)41 void btif_a2dp_on_idle(void) {
42 LOG_VERBOSE("Peer stream endpoint type:%s",
43 peer_stream_endpoint_text(btif_av_get_peer_sep()).c_str());
44 if (btif_av_get_peer_sep() == AVDT_TSEP_SNK) {
45 btif_a2dp_source_on_idle();
46 } else if (btif_av_get_peer_sep() == AVDT_TSEP_SRC) {
47 btif_a2dp_sink_on_idle();
48 }
49 }
50
btif_a2dp_on_started(const RawAddress & peer_addr,tBTA_AV_START * p_av_start)51 bool btif_a2dp_on_started(const RawAddress& peer_addr, tBTA_AV_START* p_av_start) {
52 LOG(INFO) << __func__ << ": ## ON A2DP STARTED ## peer " << peer_addr << " p_av_start:" << p_av_start;
53
54 if (p_av_start == NULL) {
55 tA2DP_CTRL_ACK status = A2DP_CTRL_ACK_SUCCESS;
56 if (!bluetooth::headset::IsCallIdle()) {
57 LOG(ERROR) << __func__ << ": peer " << peer_addr << " call in progress, do not start A2DP stream";
58 status = A2DP_CTRL_ACK_INCALL_FAILURE;
59 }
60 /* just ack back a local start request, do not start the media encoder since
61 * this is not for BTA_AV_START_EVT. */
62 if (bluetooth::audio::a2dp::is_hal_enabled()) {
63 bluetooth::audio::a2dp::ack_stream_started(status);
64 } else {
65 btif_a2dp_command_ack(status);
66 }
67 return true;
68 }
69
70 LOG(INFO) << __func__ << ": peer " << peer_addr << " status:" << +p_av_start->status
71 << " suspending:" << logbool(p_av_start->suspending) << " initiator:" << logbool(p_av_start->initiator);
72
73 if (p_av_start->status == BTA_AV_SUCCESS) {
74 if (p_av_start->suspending) {
75 LOG(WARNING) << __func__ << ": peer " << peer_addr << " A2DP is suspending and ignores the started event";
76 return false;
77 }
78 if (btif_av_is_a2dp_offload_running()) {
79 btif_av_stream_start_offload();
80 } else if (bluetooth::audio::a2dp::is_hal_enabled()) {
81 if (btif_av_get_peer_sep() == AVDT_TSEP_SNK) {
82 /* Start the media encoder to do the SW audio stream */
83 btif_a2dp_source_start_audio_req();
84 }
85 if (p_av_start->initiator) {
86 bluetooth::audio::a2dp::ack_stream_started(A2DP_CTRL_ACK_SUCCESS);
87 return true;
88 }
89 } else {
90 if (p_av_start->initiator) {
91 btif_a2dp_command_ack(A2DP_CTRL_ACK_SUCCESS);
92 return true;
93 }
94 /* media task is auto-started upon UIPC connection of a2dp audiopath */
95 }
96 } else if (p_av_start->initiator) {
97 LOG(ERROR) << __func__ << ": peer " << peer_addr << " A2DP start request failed: status = " << +p_av_start->status;
98 if (bluetooth::audio::a2dp::is_hal_enabled()) {
99 bluetooth::audio::a2dp::ack_stream_started(A2DP_CTRL_ACK_FAILURE);
100 } else {
101 btif_a2dp_command_ack(A2DP_CTRL_ACK_FAILURE);
102 }
103 return true;
104 }
105 return false;
106 }
107
btif_a2dp_on_stopped(tBTA_AV_SUSPEND * p_av_suspend)108 void btif_a2dp_on_stopped(tBTA_AV_SUSPEND* p_av_suspend) {
109 LOG_INFO("%s: ## ON A2DP STOPPED ## p_av_suspend=%p", __func__, p_av_suspend);
110
111 if (btif_av_get_peer_sep() == AVDT_TSEP_SRC) {
112 btif_a2dp_sink_on_stopped(p_av_suspend);
113 return;
114 }
115 if (bluetooth::audio::a2dp::is_hal_enabled() ||
116 !btif_av_is_a2dp_offload_running()) {
117 btif_a2dp_source_on_stopped(p_av_suspend);
118 }
119 }
120
btif_a2dp_on_suspended(tBTA_AV_SUSPEND * p_av_suspend)121 void btif_a2dp_on_suspended(tBTA_AV_SUSPEND* p_av_suspend) {
122 LOG_INFO("%s: ## ON A2DP SUSPENDED ## p_av_suspend=%p", __func__,
123 p_av_suspend);
124 if (btif_av_get_peer_sep() == AVDT_TSEP_SRC) {
125 btif_a2dp_sink_on_suspended(p_av_suspend);
126 return;
127 }
128 if (bluetooth::audio::a2dp::is_hal_enabled() ||
129 !btif_av_is_a2dp_offload_running()) {
130 btif_a2dp_source_on_suspended(p_av_suspend);
131 }
132 }
133
btif_a2dp_on_offload_started(const RawAddress & peer_addr,tBTA_AV_STATUS status)134 void btif_a2dp_on_offload_started(const RawAddress& peer_addr,
135 tBTA_AV_STATUS status) {
136 tA2DP_CTRL_ACK ack;
137 LOG_INFO("%s: peer %s status %d", __func__, peer_addr.ToString().c_str(),
138 status);
139
140 switch (status) {
141 case BTA_AV_SUCCESS:
142 ack = A2DP_CTRL_ACK_SUCCESS;
143 break;
144 case BTA_AV_FAIL_RESOURCES:
145 LOG_ERROR("%s: peer %s FAILED UNSUPPORTED", __func__,
146 peer_addr.ToString().c_str());
147 ack = A2DP_CTRL_ACK_UNSUPPORTED;
148 break;
149 default:
150 LOG_ERROR("%s: peer %s FAILED: status = %d", __func__,
151 peer_addr.ToString().c_str(), status);
152 ack = A2DP_CTRL_ACK_FAILURE;
153 break;
154 }
155 if (btif_av_is_a2dp_offload_running()) {
156 if (ack != BTA_AV_SUCCESS && btif_av_stream_started_ready()) {
157 // Offload request will return with failure from btif_av sm if
158 // suspend is triggered for remote start. Disconnect only if SoC
159 // returned failure for offload VSC
160 LOG_ERROR("%s: peer %s offload start failed", __func__,
161 peer_addr.ToString().c_str());
162 btif_av_src_disconnect_sink(peer_addr);
163 }
164 }
165 if (bluetooth::audio::a2dp::is_hal_enabled()) {
166 bluetooth::audio::a2dp::ack_stream_started(ack);
167 } else {
168 btif_a2dp_command_ack(ack);
169 }
170 }
171
btif_debug_a2dp_dump(int fd)172 void btif_debug_a2dp_dump(int fd) {
173 btif_a2dp_source_debug_dump(fd);
174 btif_a2dp_sink_debug_dump(fd);
175 btif_a2dp_codec_debug_dump(fd);
176 }
177