1 /****************************************************************************** 2 * 3 * Copyright 2000-2012 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 // A2DP API 21 // 22 23 #ifndef A2DP_API_H 24 #define A2DP_API_H 25 26 #include <inttypes.h> 27 28 #include "a2dp_constants.h" 29 #include "a2dp_error_codes.h" 30 #include "sdp_api.h" 31 32 /***************************************************************************** 33 * constants 34 ****************************************************************************/ 35 36 // 37 // |MAX_PCM_FRAME_NUM_PER_TICK| controls how many buffers we can hold in 38 // the A2DP buffer queues during temporary link congestion. 39 // 40 #ifndef MAX_PCM_FRAME_NUM_PER_TICK 41 #define MAX_PCM_FRAME_NUM_PER_TICK 14 42 #endif 43 44 /* the return values from A2DP_BitsSet() */ 45 #define A2DP_SET_ONE_BIT 1 /* one and only one bit is set */ 46 #define A2DP_SET_ZERO_BIT 0 /* all bits clear */ 47 #define A2DP_SET_MULTL_BIT 2 /* multiple bits are set */ 48 49 /***************************************************************************** 50 * type definitions 51 ****************************************************************************/ 52 53 /* This data type is used in A2DP_FindService() to initialize the SDP database 54 * to hold the result service search. */ 55 typedef struct { 56 uint32_t db_len; /* Length, in bytes, of the discovery database */ 57 uint16_t num_attr; /* The number of attributes in p_attrs */ 58 uint16_t* p_attrs; /* The attributes filter. If NULL, A2DP API sets the 59 * attribute filter 60 * to be ATTR_ID_SERVICE_CLASS_ID_LIST, 61 * ATTR_ID_BT_PROFILE_DESC_LIST, 62 * ATTR_ID_SUPPORTED_FEATURES, ATTR_ID_SERVICE_NAME and 63 * ATTR_ID_PROVIDER_NAME. 64 * If not NULL, the input is taken as the filter. */ 65 } tA2DP_SDP_DB_PARAMS; 66 67 /* This data type is used in tA2DP_FIND_CBACK to report the result of the SDP 68 * discovery process. */ 69 typedef struct { 70 uint16_t service_len; /* Length, in bytes, of the service name */ 71 uint16_t provider_len; /* Length, in bytes, of the provider name */ 72 char* p_service_name; /* Pointer the service name. This character string may 73 * not be null terminated. 74 * Use the service_len parameter to safely copy this 75 * string */ 76 char* p_provider_name; /* Pointer the provider name. This character string 77 * may not be null terminated. 78 * Use the provider_len parameter to safely copy this 79 * string */ 80 uint16_t features; /* Profile supported features */ 81 uint16_t avdt_version; /* AVDTP protocol version */ 82 } tA2DP_Service; 83 84 /* This is the callback to notify the result of the SDP discovery process. */ 85 typedef void(tA2DP_FIND_CBACK)(bool found, tA2DP_Service* p_service, 86 const RawAddress& peer_address); 87 88 /***************************************************************************** 89 * external function declarations 90 ****************************************************************************/ 91 /****************************************************************************** 92 * 93 * Function A2DP_AddRecord 94 * 95 * Description This function is called by a server application to add 96 * SRC or SNK information to an SDP record. Prior to 97 * calling this function the application must call 98 * SDP_CreateRecord() to create an SDP record. 99 * 100 * Input Parameters: 101 * service_uuid: Indicates SRC or SNK. 102 * 103 * p_service_name: Pointer to a null-terminated character 104 * string containing the service name. 105 * 106 * p_provider_name: Pointer to a null-terminated character 107 * string containing the provider name. 108 * 109 * features: Profile supported features. 110 * 111 * sdp_handle: SDP handle returned by SDP_CreateRecord(). 112 * 113 * Output Parameters: 114 * None. 115 * 116 * Returns A2DP_SUCCESS if function execution succeeded, 117 * A2DP_INVALID_PARAMS if bad parameters are given. 118 * A2DP_FAIL if function execution failed. 119 * 120 *****************************************************************************/ 121 extern tA2DP_STATUS A2DP_AddRecord(uint16_t service_uuid, char* p_service_name, 122 char* p_provider_name, uint16_t features, 123 uint32_t sdp_handle); 124 125 /****************************************************************************** 126 * 127 * Function A2DP_FindService 128 * 129 * Description This function is called by a client application to 130 * perform service discovery and retrieve SRC or SNK SDP 131 * record information from a server. Information is 132 * returned for the first service record found on the 133 * server that matches the service UUID. The callback 134 * function will be executed when service discovery is 135 * complete. There can only be one outstanding call to 136 * A2DP_FindService() at a time; the application must wait 137 * for the callback before it makes another call to 138 * the function. 139 * 140 * Input Parameters: 141 * service_uuid: Indicates SRC or SNK. 142 * 143 * bd_addr: BD address of the peer device. 144 * 145 * p_db: Pointer to the information to initialize 146 * the discovery database. 147 * 148 * p_cback: Pointer to the A2DP_FindService() 149 * callback function. 150 * 151 * Output Parameters: 152 * None. 153 * 154 * Returns A2DP_SUCCESS if function execution succeeded, 155 * A2DP_INVALID_PARAMS if bad parameters are given. 156 * A2DP_BUSY if discovery is already in progress. 157 * A2DP_FAIL if function execution failed. 158 * 159 *****************************************************************************/ 160 extern tA2DP_STATUS A2DP_FindService(uint16_t service_uuid, 161 const RawAddress& bd_addr, 162 tA2DP_SDP_DB_PARAMS* p_db, 163 tA2DP_FIND_CBACK* p_cback); 164 165 /****************************************************************************** 166 * 167 * Function A2DP_GetAvdtpVersion() 168 * 169 * Description Gets the local version of AVDTP 170 * 171 * Returns The local version of AVDTP. 172 * 173 *****************************************************************************/ 174 extern uint16_t A2DP_GetAvdtpVersion(void); 175 176 /****************************************************************************** 177 * 178 * Function A2DP_SetTraceLevel 179 * 180 * Description Sets the trace level for A2D. If 0xff is passed, the 181 * current trace level is returned. 182 * 183 * Input Parameters: 184 * new_level: The level to set the A2DP tracing to: 185 * 0xff-returns the current setting. 186 * 0-turns off tracing. 187 * >= 1-Errors. 188 * >= 2-Warnings. 189 * >= 3-APIs. 190 * >= 4-Events. 191 * >= 5-Debug. 192 * 193 * Returns The new trace level or current trace level if 194 * the input parameter is 0xff. 195 * 196 *****************************************************************************/ 197 extern uint8_t A2DP_SetTraceLevel(uint8_t new_level); 198 199 /****************************************************************************** 200 * Function A2DP_BitsSet 201 * 202 * Description Check the given num for the number of bits set 203 * Returns A2DP_SET_ONE_BIT, if one and only one bit is set 204 * A2DP_SET_ZERO_BIT, if all bits clear 205 * A2DP_SET_MULTL_BIT, if multiple bits are set 206 *****************************************************************************/ 207 extern uint8_t A2DP_BitsSet(uint64_t num); 208 209 // Initializes the A2DP control block. 210 void A2DP_Init(void); 211 212 #endif // A2DP_API_H 213
