1 // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 /*****************************************************************************
16 *
17 * Filename: btc_a2dp.c
18 *
19 *****************************************************************************/
20 #include "common/bt_target.h"
21 #include "common/bt_trace.h"
22 #include "bta/bta_api.h"
23 #include "bta/bta_av_api.h"
24 #include "btc_av.h"
25 #include "btc_av_co.h"
26 #include "btc_a2dp.h"
27 #include "btc_a2dp_control.h"
28 #include "btc_a2dp_sink.h"
29 #include "btc_a2dp_source.h"
30
31
32 #if BTC_AV_INCLUDED
33
34 /*****************************************************************************
35 **
36 ** Function btc_a2dp_on_init
37 **
38 *******************************************************************************/
btc_a2dp_on_init(void)39 void btc_a2dp_on_init(void)
40 {
41 BTC_TRACE_EVENT("A2DP Initialized.");
42 }
43
44 /*****************************************************************************
45 **
46 ** Function btc_a2dp_on_idle
47 **
48 *******************************************************************************/
49
btc_a2dp_on_idle(void)50 void btc_a2dp_on_idle(void)
51 {
52 APPL_TRACE_EVENT("## ON A2DP IDLE ## peer_sep = %d, service id = %d", btc_av_get_peer_sep(),
53 btc_av_get_service_id());
54 #if BTC_AV_SRC_INCLUDED
55 if (btc_av_get_peer_sep() == AVDT_TSEP_SNK && btc_av_get_service_id() == BTA_A2DP_SOURCE_SERVICE_ID) {
56 btc_a2dp_source_on_idle();
57 }
58 #endif // BTC_AV_SRC_INCLUDED
59
60 bta_av_co_init();
61
62 #if BTC_AV_SINK_INCLUDED
63 if (btc_av_get_peer_sep() == AVDT_TSEP_SRC && btc_av_get_service_id() == BTA_A2DP_SINK_SERVICE_ID) {
64 btc_a2dp_sink_on_idle();
65 }
66 #endif // BTC_AV_SINK_INCLUDED
67 }
68
69 /*****************************************************************************
70 **
71 ** Function btc_a2dp_on_started
72 **
73 ** Description
74 **
75 ** Returns
76 **
77 *******************************************************************************/
78
btc_a2dp_on_started(tBTA_AV_START * p_av,BOOLEAN pending_start)79 BOOLEAN btc_a2dp_on_started(tBTA_AV_START *p_av, BOOLEAN pending_start)
80 {
81 BOOLEAN ack = FALSE;
82
83 APPL_TRACE_EVENT("## ON A2DP STARTED ##");
84 #if BTC_AV_SRC_INCLUDED
85 if (p_av == NULL) {
86 /* ack back a local start request */
87 btc_a2dp_control_command_ack(ESP_A2D_MEDIA_CTRL_ACK_SUCCESS);
88 return TRUE;
89 }
90
91 if (p_av->status == BTA_AV_SUCCESS) {
92 if (p_av->suspending == FALSE) {
93 if (p_av->initiator) {
94 if (pending_start) {
95 btc_a2dp_control_command_ack(ESP_A2D_MEDIA_CTRL_ACK_SUCCESS);
96 ack = TRUE;
97 }
98 } else {
99 /* we were remotely started, make sure codec
100 is setup before datapath is started */
101 btc_a2dp_source_setup_codec();
102 }
103
104 /* media task is autostarted upon a2dp audiopath connection */
105 }
106 } else if (pending_start) {
107 btc_a2dp_control_command_ack(ESP_A2D_MEDIA_CTRL_ACK_FAILURE);
108 ack = TRUE;
109 }
110 #endif /* BTC_AV_SRC_INCLUDED */
111 return ack;
112 }
113
114 /*****************************************************************************
115 **
116 ** Function btc_a2dp_on_stopped
117 **
118 *******************************************************************************/
119
btc_a2dp_on_stopped(tBTA_AV_SUSPEND * p_av)120 void btc_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av)
121 {
122 APPL_TRACE_EVENT("## ON A2DP STOPPED ##");
123 #if BTC_AV_SINK_INCLUDED
124 if (btc_av_get_peer_sep() == AVDT_TSEP_SRC && btc_av_get_service_id() == BTA_A2DP_SINK_SERVICE_ID) {
125 btc_a2dp_sink_on_stopped(p_av);
126 return;
127 }
128 #endif // BTC_AV_SINK_INCLUDED
129
130 #if BTC_AV_SRC_INCLUDED
131 btc_a2dp_source_on_stopped(p_av);
132 #endif // BTC_AV_SRC_INCLUDED
133 }
134
135 /*****************************************************************************
136 **
137 ** Function btc_a2dp_on_suspended
138 **
139 *******************************************************************************/
btc_a2dp_on_suspended(tBTA_AV_SUSPEND * p_av)140 void btc_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av)
141 {
142 APPL_TRACE_EVENT("## ON A2DP SUSPENDED ##");
143 #if BTC_AV_SINK_INCLUDED
144 if (btc_av_get_peer_sep() == AVDT_TSEP_SRC && btc_av_get_service_id() == BTA_A2DP_SINK_SERVICE_ID) {
145 btc_a2dp_sink_on_suspended(p_av);
146 return;
147 }
148 #endif // BTC_AV_SINK_INCLUDED
149 #if BTC_AV_SRC_INCLUDED
150 btc_a2dp_source_on_suspended(p_av);
151 #endif // BTC_AV_SRC_INCLUDED
152 }
153
154 #endif /* #if BTC_AV_INCLUDED */
155
