1 /******************************************************************************
2 *
3 * Copyright (C) 2003-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 /******************************************************************************
20 *
21 * This is the implementation of the API for the audio gateway (AG)
22 * subsystem of BTA, Broadcom's Bluetooth application layer for mobile
23 * phones.
24 *
25 ******************************************************************************/
26
27 #include "bta_api.h"
28 #include "bd.h"
29 #include "bta_sys.h"
30 #include "bta_ag_api.h"
31 #include "bta_ag_int.h"
32 #include "gki.h"
33 #include <string.h>
34
35 /*****************************************************************************
36 ** Constants
37 *****************************************************************************/
38
39 static const tBTA_SYS_REG bta_ag_reg =
40 {
41 bta_ag_hdl_event,
42 BTA_AgDisable
43 };
44
45 /*******************************************************************************
46 **
47 ** Function BTA_AgEnable
48 **
49 ** Description Enable the audio gateway service. When the enable
50 ** operation is complete the callback function will be
51 ** called with a BTA_AG_ENABLE_EVT. This function must
52 ** be called before other function in the AG API are
53 ** called.
54 **
55 ** Returns BTA_SUCCESS if OK, BTA_FAILURE otherwise.
56 **
57 *******************************************************************************/
BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode,tBTA_AG_CBACK * p_cback)58 tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, tBTA_AG_CBACK *p_cback)
59 {
60 tBTA_AG_API_ENABLE *p_buf;
61 UINT8 idx;
62
63 /* Error if AG is already enabled, or AG is in the middle of disabling. */
64 for (idx = 0; idx < BTA_AG_NUM_SCB; idx++)
65 {
66 if (bta_ag_cb.scb[idx].in_use)
67 {
68 APPL_TRACE_ERROR ("BTA_AgEnable: FAILED, AG already enabled.");
69 return BTA_FAILURE;
70 }
71 }
72
73 /* register with BTA system manager */
74 bta_sys_register(BTA_ID_AG, &bta_ag_reg);
75
76 if ((p_buf = (tBTA_AG_API_ENABLE *) GKI_getbuf(sizeof(tBTA_AG_API_ENABLE))) != NULL)
77 {
78 p_buf->hdr.event = BTA_AG_API_ENABLE_EVT;
79 p_buf->parse_mode = parse_mode;
80 p_buf->p_cback = p_cback;
81 bta_sys_sendmsg(p_buf);
82 }
83
84 return BTA_SUCCESS;
85
86 }
87
88 /*******************************************************************************
89 **
90 ** Function BTA_AgDisable
91 **
92 ** Description Disable the audio gateway service
93 **
94 **
95 ** Returns void
96 **
97 *******************************************************************************/
BTA_AgDisable(void)98 void BTA_AgDisable(void)
99 {
100 BT_HDR *p_buf;
101
102 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
103 {
104 p_buf->event = BTA_AG_API_DISABLE_EVT;
105 bta_sys_sendmsg(p_buf);
106 }
107 }
108
109 /*******************************************************************************
110 **
111 ** Function BTA_AgRegister
112 **
113 ** Description Register an Audio Gateway service.
114 **
115 **
116 ** Returns void
117 **
118 *******************************************************************************/
BTA_AgRegister(tBTA_SERVICE_MASK services,tBTA_SEC sec_mask,tBTA_AG_FEAT features,char * p_service_names[],UINT8 app_id)119 void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,tBTA_AG_FEAT features,
120 char * p_service_names[], UINT8 app_id)
121 {
122 tBTA_AG_API_REGISTER *p_buf;
123 int i;
124
125 if ((p_buf = (tBTA_AG_API_REGISTER *) GKI_getbuf(sizeof(tBTA_AG_API_REGISTER))) != NULL)
126 {
127 p_buf->hdr.event = BTA_AG_API_REGISTER_EVT;
128 p_buf->features = features;
129 p_buf->sec_mask = sec_mask;
130 p_buf->services = services;
131 p_buf->app_id = app_id;
132 for (i = 0; i < BTA_AG_NUM_IDX; i++)
133 {
134 if(p_service_names[i])
135 {
136 BCM_STRNCPY_S(p_buf->p_name[i], BTA_SERVICE_NAME_LEN+1, p_service_names[i], BTA_SERVICE_NAME_LEN);
137 p_buf->p_name[i][BTA_SERVICE_NAME_LEN] = 0;
138 }
139 else
140 {
141 p_buf->p_name[i][0] = 0;
142 }
143 }
144 bta_sys_sendmsg(p_buf);
145 }
146 }
147
148 /*******************************************************************************
149 **
150 ** Function BTA_AgDeregister
151 **
152 ** Description Deregister an audio gateway service.
153 **
154 **
155 ** Returns void
156 **
157 *******************************************************************************/
BTA_AgDeregister(UINT16 handle)158 void BTA_AgDeregister(UINT16 handle)
159 {
160 BT_HDR *p_buf;
161
162 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
163 {
164 p_buf->event = BTA_AG_API_DEREGISTER_EVT;
165 p_buf->layer_specific = handle;
166 bta_sys_sendmsg(p_buf);
167 }
168 }
169
170 /*******************************************************************************
171 **
172 ** Function BTA_AgOpen
173 **
174 ** Description Opens a connection to a headset or hands-free device.
175 ** When connection is open callback function is called
176 ** with a BTA_AG_OPEN_EVT. Only the data connection is
177 ** opened. The audio connection is not opened.
178 **
179 **
180 ** Returns void
181 **
182 *******************************************************************************/
BTA_AgOpen(UINT16 handle,BD_ADDR bd_addr,tBTA_SEC sec_mask,tBTA_SERVICE_MASK services)183 void BTA_AgOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services)
184 {
185 tBTA_AG_API_OPEN *p_buf;
186
187 if ((p_buf = (tBTA_AG_API_OPEN *) GKI_getbuf(sizeof(tBTA_AG_API_OPEN))) != NULL)
188 {
189 p_buf->hdr.event = BTA_AG_API_OPEN_EVT;
190 p_buf->hdr.layer_specific = handle;
191 bdcpy(p_buf->bd_addr, bd_addr);
192 p_buf->services = services;
193 p_buf->sec_mask = sec_mask;
194 bta_sys_sendmsg(p_buf);
195 }
196 }
197
198 /*******************************************************************************
199 **
200 ** Function BTA_AgClose
201 **
202 ** Description Close the current connection to a headset or a handsfree
203 ** Any current audio connection will also be closed.
204 **
205 **
206 ** Returns void
207 **
208 *******************************************************************************/
BTA_AgClose(UINT16 handle)209 void BTA_AgClose(UINT16 handle)
210 {
211 BT_HDR *p_buf;
212
213 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
214 {
215 p_buf->event = BTA_AG_API_CLOSE_EVT;
216 p_buf->layer_specific = handle;
217 bta_sys_sendmsg(p_buf);
218 }
219 }
220
221 /*******************************************************************************
222 **
223 ** Function BTA_AgAudioOpen
224 **
225 ** Description Opens an audio connection to the currently connected
226 ** headset or hnadsfree.
227 **
228 **
229 ** Returns void
230 **
231 *******************************************************************************/
BTA_AgAudioOpen(UINT16 handle)232 void BTA_AgAudioOpen(UINT16 handle)
233 {
234 BT_HDR *p_buf;
235
236 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
237 {
238 p_buf->event = BTA_AG_API_AUDIO_OPEN_EVT;
239 p_buf->layer_specific = handle;
240 bta_sys_sendmsg(p_buf);
241 }
242 }
243
244 /*******************************************************************************
245 **
246 ** Function BTA_AgAudioClose
247 **
248 ** Description Close the currently active audio connection to a headset
249 ** or hnadsfree. The data connection remains open
250 **
251 **
252 ** Returns void
253 **
254 *******************************************************************************/
BTA_AgAudioClose(UINT16 handle)255 void BTA_AgAudioClose(UINT16 handle)
256 {
257 BT_HDR *p_buf;
258
259 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
260 {
261 p_buf->event = BTA_AG_API_AUDIO_CLOSE_EVT;
262 p_buf->layer_specific = handle;
263 bta_sys_sendmsg(p_buf);
264 }
265 }
266
267
268 /*******************************************************************************
269 **
270 ** Function BTA_AgResult
271 **
272 ** Description Send an AT result code to a headset or hands-free device.
273 ** This function is only used when the AG parse mode is set
274 ** to BTA_AG_PARSE.
275 **
276 **
277 ** Returns void
278 **
279 *******************************************************************************/
BTA_AgResult(UINT16 handle,tBTA_AG_RES result,tBTA_AG_RES_DATA * p_data)280 void BTA_AgResult(UINT16 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data)
281 {
282 tBTA_AG_API_RESULT *p_buf;
283
284 if ((p_buf = (tBTA_AG_API_RESULT *) GKI_getbuf(sizeof(tBTA_AG_API_RESULT))) != NULL)
285 {
286 p_buf->hdr.event = BTA_AG_API_RESULT_EVT;
287 p_buf->hdr.layer_specific = handle;
288 p_buf->result = result;
289 if(p_data)
290 {
291 memcpy(&p_buf->data, p_data, sizeof(p_buf->data));
292 }
293 bta_sys_sendmsg(p_buf);
294 }
295 }
296
297 /*******************************************************************************
298 **
299 ** Function BTA_AgSetCodec
300 **
301 ** Description Specify the codec type to be used for the subsequent
302 ** audio connection.
303 **
304 **
305 **
306 ** Returns void
307 **
308 *******************************************************************************/
BTA_AgSetCodec(UINT16 handle,tBTA_AG_PEER_CODEC codec)309 void BTA_AgSetCodec(UINT16 handle, tBTA_AG_PEER_CODEC codec)
310 {
311 tBTA_AG_API_SETCODEC *p_buf;
312
313 if ((p_buf = (tBTA_AG_API_SETCODEC *) GKI_getbuf(sizeof(tBTA_AG_API_SETCODEC))) != NULL)
314 {
315 p_buf->hdr.event = BTA_AG_API_SETCODEC_EVT;
316 p_buf->hdr.layer_specific = handle;
317 p_buf->codec = codec;
318 bta_sys_sendmsg(p_buf);
319 }
320 }
321
322