1 /****************************************************************************** 2 * 3 * Copyright (C) 2014 The Android Open Source Project 4 * Copyright (C) 2003-2012 Broadcom Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at: 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 ******************************************************************************/ 19 20 /****************************************************************************** 21 * 22 * This file contains action functions for MCE. 23 * 24 ******************************************************************************/ 25 26 #include <hardware/bluetooth.h> 27 #include <arpa/inet.h> 28 29 #include "bt_types.h" 30 #include "gki.h" 31 #include "bd.h" 32 #include "utl.h" 33 #include "bta_sys.h" 34 #include "bta_api.h" 35 #include "bta_mce_api.h" 36 #include "bta_mce_int.h" 37 #include "btm_api.h" 38 #include "btm_int.h" 39 #include "sdp_api.h" 40 #include <string.h> 41 42 /***************************************************************************** 43 ** Constants 44 *****************************************************************************/ 45 46 static const tBT_UUID bta_mce_mas_uuid = { 47 .len = 2, 48 .uu.uuid16 = UUID_SERVCLASS_MESSAGE_ACCESS 49 }; 50 51 /******************************************************************************* 52 ** 53 ** Function bta_mce_search_cback 54 ** 55 ** Description Callback from btm after search is completed 56 ** 57 ** Returns void 58 ** 59 *******************************************************************************/ 60 61 static void bta_mce_search_cback(UINT16 result, void * user_data) 62 { 63 tSDP_DISC_REC *p_rec = NULL; 64 tBTA_MCE_MAS_DISCOVERY_COMP evt_data; 65 int found = 0; 66 67 APPL_TRACE_DEBUG("bta_mce_start_discovery_cback res: 0x%x", result); 68 69 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE; 70 71 if (bta_mce_cb.p_dm_cback == NULL) return; 72 73 evt_data.status = BTA_MCE_FAILURE; 74 bdcpy(evt_data.remote_addr, bta_mce_cb.remote_addr); 75 evt_data.num_mas = 0; 76 77 if (result == SDP_SUCCESS || result == SDP_DB_FULL) 78 { 79 do 80 { 81 tSDP_DISC_ATTR *p_attr; 82 tSDP_PROTOCOL_ELEM pe; 83 84 p_rec = SDP_FindServiceUUIDInDb(p_bta_mce_cfg->p_sdp_db, (tBT_UUID*) &bta_mce_mas_uuid, p_rec); 85 86 APPL_TRACE_DEBUG("p_rec:%p", p_rec); 87 88 if (p_rec == NULL) 89 break; 90 91 if (!SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe)) 92 continue; 93 94 evt_data.mas[found].scn = pe.params[0]; 95 96 if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) == NULL) 97 continue; 98 99 evt_data.mas[found].p_srv_name = (char *) p_attr->attr_value.v.array; 100 evt_data.mas[found].srv_name_len= SDP_DISC_ATTR_LEN(p_attr->attr_len_type); 101 102 if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAS_INSTANCE_ID)) == NULL) 103 break; 104 105 evt_data.mas[found].instance_id = p_attr->attr_value.v.u8; 106 107 if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_MSG_TYPE)) == NULL) 108 break; 109 110 evt_data.mas[found].msg_type = p_attr->attr_value.v.u8; 111 112 found++; 113 } while (p_rec != NULL && found < BTA_MCE_MAX_MAS_INSTANCES); 114 115 evt_data.num_mas = found; 116 evt_data.status = BTA_MCE_SUCCESS; 117 } 118 119 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE*) &evt_data, user_data); 120 } 121 122 /******************************************************************************* 123 ** 124 ** Function bta_mce_enable 125 ** 126 ** Description Initializes the MCE I/F 127 ** 128 ** Returns void 129 ** 130 *******************************************************************************/ 131 void bta_mce_enable(tBTA_MCE_MSG *p_data) 132 { 133 tBTA_MCE_STATUS status = BTA_MCE_SUCCESS; 134 bta_mce_cb.p_dm_cback = p_data->enable.p_cback; 135 bta_mce_cb.p_dm_cback(BTA_MCE_ENABLE_EVT, (tBTA_MCE *)&status, NULL); 136 } 137 138 /******************************************************************************* 139 ** 140 ** Function bta_mce_get_remote_mas_instances 141 ** 142 ** Description Discovers MAS instances on remote device 143 ** 144 ** Returns void 145 ** 146 *******************************************************************************/ 147 void bta_mce_get_remote_mas_instances(tBTA_MCE_MSG *p_data) 148 { 149 if(p_data == NULL) 150 { 151 APPL_TRACE_DEBUG("MCE control block handle is null"); 152 return; 153 } 154 tBTA_MCE_STATUS status = BTA_MCE_FAILURE; 155 156 APPL_TRACE_DEBUG("%s in, sdp_active:%d", __FUNCTION__, bta_mce_cb.sdp_active); 157 158 if (bta_mce_cb.sdp_active != BTA_MCE_SDP_ACT_NONE) 159 { 160 /* SDP is still in progress */ 161 status = BTA_MCE_BUSY; 162 if(bta_mce_cb.p_dm_cback) 163 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL); 164 165 return; 166 } 167 168 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_YES; 169 bdcpy(bta_mce_cb.remote_addr, p_data->get_rmt_mas.bd_addr); 170 171 SDP_InitDiscoveryDb (p_bta_mce_cfg->p_sdp_db, p_bta_mce_cfg->sdp_db_size, 1, 172 (tBT_UUID*) &bta_mce_mas_uuid, 0, NULL); 173 174 if (!SDP_ServiceSearchAttributeRequest2(p_data->get_rmt_mas.bd_addr, p_bta_mce_cfg->p_sdp_db, 175 bta_mce_search_cback, NULL)) 176 { 177 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE; 178 179 /* failed to start SDP. report the failure right away */ 180 if (bta_mce_cb.p_dm_cback) 181 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL); 182 } 183 /* 184 else report the result when the cback is called 185 */ 186 } 187
