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 "utl.h" 32 #include "bta_sys.h" 33 #include "bta_api.h" 34 #include "bta_mce_api.h" 35 #include "bta_mce_int.h" 36 #include "btm_api.h" 37 #include "btm_int.h" 38 #include "sdp_api.h" 39 #include <string.h> 40 41 /***************************************************************************** 42 ** Constants 43 *****************************************************************************/ 44 45 static const tBT_UUID bta_mce_mas_uuid = { 46 .len = 2, 47 .uu.uuid16 = UUID_SERVCLASS_MESSAGE_ACCESS 48 }; 49 50 /******************************************************************************* 51 ** 52 ** Function bta_mce_search_cback 53 ** 54 ** Description Callback from btm after search is completed 55 ** 56 ** Returns void 57 ** 58 *******************************************************************************/ 59 60 static void bta_mce_search_cback(UINT16 result, void * user_data) 61 { 62 tSDP_DISC_REC *p_rec = NULL; 63 tBTA_MCE_MAS_DISCOVERY_COMP evt_data; 64 int found = 0; 65 66 APPL_TRACE_DEBUG("bta_mce_start_discovery_cback res: 0x%x", result); 67 68 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE; 69 70 if (bta_mce_cb.p_dm_cback == NULL) return; 71 72 evt_data.status = BTA_MCE_FAILURE; 73 bdcpy(evt_data.remote_addr, bta_mce_cb.remote_addr); 74 evt_data.num_mas = 0; 75 76 if (result == SDP_SUCCESS || result == SDP_DB_FULL) 77 { 78 do 79 { 80 tSDP_DISC_ATTR *p_attr; 81 tSDP_PROTOCOL_ELEM pe; 82 83 p_rec = SDP_FindServiceUUIDInDb(p_bta_mce_cfg->p_sdp_db, (tBT_UUID*) &bta_mce_mas_uuid, p_rec); 84 85 APPL_TRACE_DEBUG("p_rec:%p", p_rec); 86 87 if (p_rec == NULL) 88 break; 89 90 if (!SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe)) 91 continue; 92 93 evt_data.mas[found].scn = pe.params[0]; 94 95 if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) == NULL) 96 continue; 97 98 evt_data.mas[found].p_srv_name = (char *) p_attr->attr_value.v.array; 99 evt_data.mas[found].srv_name_len= SDP_DISC_ATTR_LEN(p_attr->attr_len_type); 100 101 if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAS_INSTANCE_ID)) == NULL) 102 break; 103 104 evt_data.mas[found].instance_id = p_attr->attr_value.v.u8; 105 106 if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_MSG_TYPE)) == NULL) 107 break; 108 109 evt_data.mas[found].msg_type = p_attr->attr_value.v.u8; 110 111 found++; 112 } while (p_rec != NULL && found < BTA_MCE_MAX_MAS_INSTANCES); 113 114 evt_data.num_mas = found; 115 evt_data.status = BTA_MCE_SUCCESS; 116 } 117 118 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE*) &evt_data, user_data); 119 } 120 121 /******************************************************************************* 122 ** 123 ** Function bta_mce_enable 124 ** 125 ** Description Initializes the MCE I/F 126 ** 127 ** Returns void 128 ** 129 *******************************************************************************/ 130 void bta_mce_enable(tBTA_MCE_MSG *p_data) 131 { 132 tBTA_MCE_STATUS status = BTA_MCE_SUCCESS; 133 bta_mce_cb.p_dm_cback = p_data->enable.p_cback; 134 bta_mce_cb.p_dm_cback(BTA_MCE_ENABLE_EVT, (tBTA_MCE *)&status, NULL); 135 } 136 137 /******************************************************************************* 138 ** 139 ** Function bta_mce_get_remote_mas_instances 140 ** 141 ** Description Discovers MAS instances on remote device 142 ** 143 ** Returns void 144 ** 145 *******************************************************************************/ 146 void bta_mce_get_remote_mas_instances(tBTA_MCE_MSG *p_data) 147 { 148 if(p_data == NULL) 149 { 150 APPL_TRACE_DEBUG("MCE control block handle is null"); 151 return; 152 } 153 tBTA_MCE_STATUS status = BTA_MCE_FAILURE; 154 155 APPL_TRACE_DEBUG("%s in, sdp_active:%d", __FUNCTION__, bta_mce_cb.sdp_active); 156 157 if (bta_mce_cb.sdp_active != BTA_MCE_SDP_ACT_NONE) 158 { 159 /* SDP is still in progress */ 160 status = BTA_MCE_BUSY; 161 if(bta_mce_cb.p_dm_cback) 162 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL); 163 164 return; 165 } 166 167 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_YES; 168 bdcpy(bta_mce_cb.remote_addr, p_data->get_rmt_mas.bd_addr); 169 170 SDP_InitDiscoveryDb (p_bta_mce_cfg->p_sdp_db, p_bta_mce_cfg->sdp_db_size, 1, 171 (tBT_UUID*) &bta_mce_mas_uuid, 0, NULL); 172 173 if (!SDP_ServiceSearchAttributeRequest2(p_data->get_rmt_mas.bd_addr, p_bta_mce_cfg->p_sdp_db, 174 bta_mce_search_cback, NULL)) 175 { 176 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE; 177 178 /* failed to start SDP. report the failure right away */ 179 if (bta_mce_cb.p_dm_cback) 180 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL); 181 } 182 /* 183 else report the result when the cback is called 184 */ 185 } 186
