1 /****************************************************************************** 2 * 3 * Copyright (C) 2003-2013 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 * AVRCP SDP related functions 22 * 23 ******************************************************************************/ 24 #include <string.h> 25 26 #include "gki.h" 27 #include "avrc_api.h" 28 #include "avrc_int.h" 29 30 #ifndef SDP_AVRCP_1_4 31 #define SDP_AVRCP_1_4 FALSE 32 #endif 33 34 /***************************************************************************** 35 ** Global data 36 *****************************************************************************/ 37 #if AVRC_DYNAMIC_MEMORY == FALSE 38 tAVRC_CB avrc_cb; 39 #endif 40 41 /* update AVRC_NUM_PROTO_ELEMS if this constant is changed */ 42 const tSDP_PROTOCOL_ELEM avrc_proto_list [] = 43 { 44 {UUID_PROTOCOL_L2CAP, 1, {AVCT_PSM, 0} }, 45 #if SDP_AVRCP_1_4 == TRUE 46 {UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_3, 0} } 47 #else 48 #if AVRC_METADATA_INCLUDED == TRUE 49 {UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_2, 0} } 50 #else 51 {UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_0, 0} } 52 #endif 53 #endif 54 }; 55 56 #if SDP_AVRCP_1_4 == TRUE 57 const tSDP_PROTO_LIST_ELEM avrc_add_proto_list [] = 58 { 59 {AVRC_NUM_PROTO_ELEMS, 60 { 61 {UUID_PROTOCOL_L2CAP, 1, {AVCT_BR_PSM, 0} }, 62 {UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_3, 0} }}} 63 }; 64 #endif 65 66 67 /****************************************************************************** 68 ** 69 ** Function avrc_sdp_cback 70 ** 71 ** Description This is the SDP callback function used by A2D_FindService. 72 ** This function will be executed by SDP when the service 73 ** search is completed. If the search is successful, it 74 ** finds the first record in the database that matches the 75 ** UUID of the search. Then retrieves various parameters 76 ** from the record. When it is finished it calls the 77 ** application callback function. 78 ** 79 ** Returns Nothing. 80 ** 81 ******************************************************************************/ 82 static void avrc_sdp_cback(UINT16 status) 83 { 84 AVRC_TRACE_API1("avrc_sdp_cback status: %d", status); 85 86 /* reset service_uuid, so can start another find service */ 87 avrc_cb.service_uuid = 0; 88 89 /* return info from sdp record in app callback function */ 90 (*avrc_cb.p_cback) (status); 91 92 return; 93 } 94 95 /****************************************************************************** 96 ** 97 ** Function AVRC_FindService 98 ** 99 ** Description This function is called by the application to perform service 100 ** discovery and retrieve AVRCP SDP record information from a 101 ** peer device. Information is returned for the first service 102 ** record found on the server that matches the service UUID. 103 ** The callback function will be executed when service discovery 104 ** is complete. There can only be one outstanding call to 105 ** AVRC_FindService() at a time; the application must wait for 106 ** the callback before it makes another call to the function. 107 ** The application is responsible for allocating memory for the 108 ** discovery database. It is recommended that the size of the 109 ** discovery database be at least 300 bytes. The application 110 ** can deallocate the memory after the callback function has 111 ** executed. 112 ** 113 ** Input Parameters: 114 ** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET) 115 ** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL) 116 ** 117 ** bd_addr: BD address of the peer device. 118 ** 119 ** p_db: SDP discovery database parameters. 120 ** 121 ** p_cback: Pointer to the callback function. 122 ** 123 ** Output Parameters: 124 ** None. 125 ** 126 ** Returns AVRC_SUCCESS if successful. 127 ** AVRC_BAD_PARAMS if discovery database parameters are invalid. 128 ** AVRC_NO_RESOURCES if there are not enough resources to 129 ** perform the service search. 130 ** 131 ******************************************************************************/ 132 UINT16 AVRC_FindService(UINT16 service_uuid, BD_ADDR bd_addr, 133 tAVRC_SDP_DB_PARAMS *p_db, tAVRC_FIND_CBACK *p_cback) 134 { 135 tSDP_UUID uuid_list; 136 BOOLEAN result = TRUE; 137 UINT16 a2d_attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, /* update AVRC_NUM_ATTR, if changed */ 138 ATTR_ID_PROTOCOL_DESC_LIST, 139 ATTR_ID_BT_PROFILE_DESC_LIST, 140 ATTR_ID_SERVICE_NAME, 141 ATTR_ID_SUPPORTED_FEATURES, 142 ATTR_ID_PROVIDER_NAME}; 143 144 AVRC_TRACE_API1("AVRC_FindService uuid: %x", service_uuid); 145 if( (service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL) || 146 p_db == NULL || p_db->p_db == NULL || p_cback == NULL) 147 return AVRC_BAD_PARAM; 148 149 /* check if it is busy */ 150 if( avrc_cb.service_uuid == UUID_SERVCLASS_AV_REM_CTRL_TARGET || 151 avrc_cb.service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL) 152 return AVRC_NO_RESOURCES; 153 154 /* set up discovery database */ 155 uuid_list.len = LEN_UUID_16; 156 uuid_list.uu.uuid16 = service_uuid; 157 158 if(p_db->p_attrs == NULL || p_db->num_attr == 0) 159 { 160 p_db->p_attrs = a2d_attr_list; 161 p_db->num_attr = AVRC_NUM_ATTR; 162 } 163 164 result = SDP_InitDiscoveryDb(p_db->p_db, p_db->db_len, 1, &uuid_list, p_db->num_attr, 165 p_db->p_attrs); 166 167 if (result == TRUE) 168 { 169 /* store service_uuid and discovery db pointer */ 170 avrc_cb.p_db = p_db->p_db; 171 avrc_cb.service_uuid = service_uuid; 172 avrc_cb.p_cback = p_cback; 173 174 /* perform service search */ 175 result = SDP_ServiceSearchAttributeRequest(bd_addr, p_db->p_db, avrc_sdp_cback); 176 } 177 178 return (result ? AVRC_SUCCESS : AVRC_FAIL); 179 } 180 181 /****************************************************************************** 182 ** 183 ** Function AVRC_AddRecord 184 ** 185 ** Description This function is called to build an AVRCP SDP record. 186 ** Prior to calling this function the application must 187 ** call SDP_CreateRecord() to create an SDP record. 188 ** 189 ** Input Parameters: 190 ** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET) 191 ** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL) 192 ** 193 ** p_service_name: Pointer to a null-terminated character 194 ** string containing the service name. 195 ** If service name is not used set this to NULL. 196 ** 197 ** p_provider_name: Pointer to a null-terminated character 198 ** string containing the provider name. 199 ** If provider name is not used set this to NULL. 200 ** 201 ** categories: Supported categories. 202 ** 203 ** sdp_handle: SDP handle returned by SDP_CreateRecord(). 204 ** 205 ** Output Parameters: 206 ** None. 207 ** 208 ** Returns AVRC_SUCCESS if successful. 209 ** AVRC_NO_RESOURCES if not enough resources to build the SDP record. 210 ** 211 ******************************************************************************/ 212 UINT16 AVRC_AddRecord(UINT16 service_uuid, char *p_service_name, 213 char *p_provider_name, UINT16 categories, UINT32 sdp_handle) 214 { 215 UINT16 browse_list[1]; 216 BOOLEAN result = TRUE; 217 UINT8 temp[8]; 218 UINT8 *p; 219 UINT16 count = 1; 220 UINT16 class_list[2]; 221 222 223 AVRC_TRACE_API1("AVRC_AddRecord uuid: %x", service_uuid); 224 225 if( service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL ) 226 return AVRC_BAD_PARAM; 227 228 /* add service class id list */ 229 class_list[0] = service_uuid; 230 #if SDP_AVRCP_1_4 == TRUE 231 if( service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL ) 232 { 233 class_list[1] = UUID_SERVCLASS_AV_REM_CTRL_CONTROL; 234 count = 2; 235 } 236 #endif 237 result &= SDP_AddServiceClassIdList(sdp_handle, count, class_list); 238 239 /* add protocol descriptor list */ 240 result &= SDP_AddProtocolList(sdp_handle, AVRC_NUM_PROTO_ELEMS, (tSDP_PROTOCOL_ELEM *)avrc_proto_list); 241 242 /* add profile descriptor list */ 243 #if SDP_AVRCP_1_4 == TRUE 244 /* additional protocol list to include browsing channel */ 245 result &= SDP_AddAdditionProtoLists( sdp_handle, 1, (tSDP_PROTO_LIST_ELEM *)avrc_add_proto_list); 246 247 result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, AVRC_REV_1_4); 248 #else 249 #if AVRC_METADATA_INCLUDED == TRUE 250 result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, AVRC_REV_1_3); 251 #else 252 result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, AVRC_REV_1_0); 253 #endif 254 #endif 255 256 /* add supported categories */ 257 p = temp; 258 UINT16_TO_BE_STREAM(p, categories); 259 result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE, 260 (UINT32)2, (UINT8*)temp); 261 262 /* add provider name */ 263 if (p_provider_name != NULL) 264 { 265 result &= SDP_AddAttribute(sdp_handle, ATTR_ID_PROVIDER_NAME, TEXT_STR_DESC_TYPE, 266 (UINT32)(strlen(p_provider_name)+1), (UINT8 *) p_provider_name); 267 } 268 269 /* add service name */ 270 if (p_service_name != NULL) 271 { 272 result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE, 273 (UINT32)(strlen(p_service_name)+1), (UINT8 *) p_service_name); 274 } 275 276 /* add browse group list */ 277 browse_list[0] = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP; 278 result &= SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list); 279 280 281 return (result ? AVRC_SUCCESS : AVRC_FAIL); 282 } 283 284 285 286 /****************************************************************************** 287 ** 288 ** Function AVRC_SetTraceLevel 289 ** 290 ** Description Sets the trace level for AVRC. If 0xff is passed, the 291 ** current trace level is returned. 292 ** 293 ** Input Parameters: 294 ** new_level: The level to set the AVRC tracing to: 295 ** 0xff-returns the current setting. 296 ** 0-turns off tracing. 297 ** >= 1-Errors. 298 ** >= 2-Warnings. 299 ** >= 3-APIs. 300 ** >= 4-Events. 301 ** >= 5-Debug. 302 ** 303 ** Returns The new trace level or current trace level if 304 ** the input parameter is 0xff. 305 ** 306 ******************************************************************************/ 307 UINT8 AVRC_SetTraceLevel (UINT8 new_level) 308 { 309 if (new_level != 0xFF) 310 avrc_cb.trace_level = new_level; 311 312 return (avrc_cb.trace_level); 313 } 314 315 /******************************************************************************* 316 ** 317 ** Function AVRC_Init 318 ** 319 ** Description This function is called at stack startup to allocate the 320 ** control block (if using dynamic memory), and initializes the 321 ** control block and tracing level. 322 ** 323 ** Returns void 324 ** 325 *******************************************************************************/ 326 void AVRC_Init(void) 327 { 328 memset(&avrc_cb, 0, sizeof(tAVRC_CB)); 329 330 #if defined(AVRC_INITIAL_TRACE_LEVEL) 331 avrc_cb.trace_level = AVRC_INITIAL_TRACE_LEVEL; 332 #else 333 avrc_cb.trace_level = BT_TRACE_LEVEL_NONE; 334 #endif 335 } 336 337
