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_ag_api.h" 28 #include <string.h> 29 #include "bt_common.h" 30 #include "bta_ag_int.h" 31 #include "bta_api.h" 32 #include "bta_sys.h" 33 34 /***************************************************************************** 35 * Constants 36 ****************************************************************************/ 37 38 static const tBTA_SYS_REG bta_ag_reg = {bta_ag_hdl_event, BTA_AgDisable}; 39 40 /******************************************************************************* 41 * 42 * Function BTA_AgEnable 43 * 44 * Description Enable the audio gateway service. When the enable 45 * operation is complete the callback function will be 46 * called with a BTA_AG_ENABLE_EVT. This function must 47 * be called before other function in the AG API are 48 * called. 49 * 50 * Returns BTA_SUCCESS if OK, BTA_FAILURE otherwise. 51 * 52 ******************************************************************************/ 53 tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, 54 tBTA_AG_CBACK* p_cback) { 55 /* Error if AG is already enabled, or AG is in the middle of disabling. */ 56 for (int idx = 0; idx < BTA_AG_NUM_SCB; idx++) { 57 if (bta_ag_cb.scb[idx].in_use) { 58 APPL_TRACE_ERROR("BTA_AgEnable: FAILED, AG already enabled."); 59 return BTA_FAILURE; 60 } 61 } 62 63 /* register with BTA system manager */ 64 bta_sys_register(BTA_ID_AG, &bta_ag_reg); 65 66 tBTA_AG_API_ENABLE* p_buf = 67 (tBTA_AG_API_ENABLE*)osi_malloc(sizeof(tBTA_AG_API_ENABLE)); 68 p_buf->hdr.event = BTA_AG_API_ENABLE_EVT; 69 p_buf->parse_mode = parse_mode; 70 p_buf->p_cback = p_cback; 71 72 bta_sys_sendmsg(p_buf); 73 74 return BTA_SUCCESS; 75 } 76 77 /******************************************************************************* 78 * 79 * Function BTA_AgDisable 80 * 81 * Description Disable the audio gateway service 82 * 83 * 84 * Returns void 85 * 86 ******************************************************************************/ 87 void BTA_AgDisable(void) { 88 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); 89 90 p_buf->event = BTA_AG_API_DISABLE_EVT; 91 92 bta_sys_sendmsg(p_buf); 93 } 94 95 /******************************************************************************* 96 * 97 * Function BTA_AgRegister 98 * 99 * Description Register an Audio Gateway service. 100 * 101 * 102 * Returns void 103 * 104 ******************************************************************************/ 105 void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask, 106 tBTA_AG_FEAT features, const char* p_service_names[], 107 uint8_t app_id) { 108 tBTA_AG_API_REGISTER* p_buf = 109 (tBTA_AG_API_REGISTER*)osi_malloc(sizeof(tBTA_AG_API_REGISTER)); 110 111 p_buf->hdr.event = BTA_AG_API_REGISTER_EVT; 112 p_buf->features = features; 113 p_buf->sec_mask = sec_mask; 114 p_buf->services = services; 115 p_buf->app_id = app_id; 116 for (int i = 0; i < BTA_AG_NUM_IDX; i++) { 117 if (p_service_names[i]) 118 strlcpy(p_buf->p_name[i], p_service_names[i], BTA_SERVICE_NAME_LEN); 119 else 120 p_buf->p_name[i][0] = 0; 121 } 122 123 bta_sys_sendmsg(p_buf); 124 } 125 126 /******************************************************************************* 127 * 128 * Function BTA_AgDeregister 129 * 130 * Description Deregister an audio gateway service. 131 * 132 * 133 * Returns void 134 * 135 ******************************************************************************/ 136 void BTA_AgDeregister(uint16_t handle) { 137 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); 138 139 p_buf->event = BTA_AG_API_DEREGISTER_EVT; 140 p_buf->layer_specific = handle; 141 142 bta_sys_sendmsg(p_buf); 143 } 144 145 /******************************************************************************* 146 * 147 * Function BTA_AgOpen 148 * 149 * Description Opens a connection to a headset or hands-free device. 150 * When connection is open callback function is called 151 * with a BTA_AG_OPEN_EVT. Only the data connection is 152 * opened. The audio connection is not opened. 153 * 154 * 155 * Returns void 156 * 157 ******************************************************************************/ 158 void BTA_AgOpen(uint16_t handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, 159 tBTA_SERVICE_MASK services) { 160 tBTA_AG_API_OPEN* p_buf = 161 (tBTA_AG_API_OPEN*)osi_malloc(sizeof(tBTA_AG_API_OPEN)); 162 163 p_buf->hdr.event = BTA_AG_API_OPEN_EVT; 164 p_buf->hdr.layer_specific = handle; 165 bdcpy(p_buf->bd_addr, bd_addr); 166 p_buf->services = services; 167 p_buf->sec_mask = sec_mask; 168 169 bta_sys_sendmsg(p_buf); 170 } 171 172 /******************************************************************************* 173 * 174 * Function BTA_AgClose 175 * 176 * Description Close the current connection to a headset or a handsfree 177 * Any current audio connection will also be closed. 178 * 179 * 180 * Returns void 181 * 182 ******************************************************************************/ 183 void BTA_AgClose(uint16_t handle) { 184 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); 185 186 p_buf->event = BTA_AG_API_CLOSE_EVT; 187 p_buf->layer_specific = handle; 188 189 bta_sys_sendmsg(p_buf); 190 } 191 192 /******************************************************************************* 193 * 194 * Function BTA_AgAudioOpen 195 * 196 * Description Opens an audio connection to the currently connected 197 * headset or hnadsfree. 198 * 199 * 200 * Returns void 201 * 202 ******************************************************************************/ 203 void BTA_AgAudioOpen(uint16_t handle) { 204 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); 205 206 p_buf->event = BTA_AG_API_AUDIO_OPEN_EVT; 207 p_buf->layer_specific = handle; 208 209 bta_sys_sendmsg(p_buf); 210 } 211 212 /******************************************************************************* 213 * 214 * Function BTA_AgAudioClose 215 * 216 * Description Close the currently active audio connection to a headset 217 * or hnadsfree. The data connection remains open 218 * 219 * 220 * Returns void 221 * 222 ******************************************************************************/ 223 void BTA_AgAudioClose(uint16_t handle) { 224 BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); 225 226 p_buf->event = BTA_AG_API_AUDIO_CLOSE_EVT; 227 p_buf->layer_specific = handle; 228 229 bta_sys_sendmsg(p_buf); 230 } 231 232 /******************************************************************************* 233 * 234 * Function BTA_AgResult 235 * 236 * Description Send an AT result code to a headset or hands-free device. 237 * This function is only used when the AG parse mode is set 238 * to BTA_AG_PARSE. 239 * 240 * 241 * Returns void 242 * 243 ******************************************************************************/ 244 void BTA_AgResult(uint16_t handle, tBTA_AG_RES result, 245 tBTA_AG_RES_DATA* p_data) { 246 tBTA_AG_API_RESULT* p_buf = 247 (tBTA_AG_API_RESULT*)osi_malloc(sizeof(tBTA_AG_API_RESULT)); 248 249 p_buf->hdr.event = BTA_AG_API_RESULT_EVT; 250 p_buf->hdr.layer_specific = handle; 251 p_buf->result = result; 252 if (p_data) memcpy(&p_buf->data, p_data, sizeof(p_buf->data)); 253 254 bta_sys_sendmsg(p_buf); 255 } 256 257 /******************************************************************************* 258 * 259 * Function BTA_AgSetCodec 260 * 261 * Description Specify the codec type to be used for the subsequent 262 * audio connection. 263 * 264 * 265 * 266 * Returns void 267 * 268 ******************************************************************************/ 269 void BTA_AgSetCodec(uint16_t handle, tBTA_AG_PEER_CODEC codec) { 270 tBTA_AG_API_SETCODEC* p_buf = 271 (tBTA_AG_API_SETCODEC*)osi_malloc(sizeof(tBTA_AG_API_SETCODEC)); 272 273 p_buf->hdr.event = BTA_AG_API_SETCODEC_EVT; 274 p_buf->hdr.layer_specific = handle; 275 p_buf->codec = codec; 276 277 bta_sys_sendmsg(p_buf); 278 } 279
