1 /****************************************************************************** 2 * 3 * Copyright 2014 The Android Open Source Project 4 * Copyright 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 <arpa/inet.h> 27 #include <hardware/bluetooth.h> 28 29 #include <string.h> 30 #include "bt_common.h" 31 #include "bt_types.h" 32 #include "bta_api.h" 33 #include "bta_mce_api.h" 34 #include "bta_mce_int.h" 35 #include "bta_sys.h" 36 #include "btm_api.h" 37 #include "btm_int.h" 38 #include "sdp_api.h" 39 #include "utl.h" 40 41 using bluetooth::Uuid; 42 43 /***************************************************************************** 44 * Constants 45 ****************************************************************************/ 46 47 static const Uuid bta_mce_mas_uuid = 48 Uuid::From16Bit(UUID_SERVCLASS_MESSAGE_ACCESS); 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_t result, void* user_data) { 61 tSDP_DISC_REC* p_rec = NULL; 62 tBTA_MCE_MAS_DISCOVERY_COMP evt_data; 63 int found = 0; 64 65 APPL_TRACE_DEBUG("bta_mce_start_discovery_cback res: 0x%x", result); 66 67 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE; 68 69 if (bta_mce_cb.p_dm_cback == NULL) return; 70 71 evt_data.status = BTA_MCE_FAILURE; 72 evt_data.remote_addr = bta_mce_cb.remote_addr; 73 evt_data.num_mas = 0; 74 75 if (result == SDP_SUCCESS || result == SDP_DB_FULL) { 76 do { 77 tSDP_DISC_ATTR* p_attr; 78 tSDP_PROTOCOL_ELEM pe; 79 80 p_rec = SDP_FindServiceUUIDInDb(p_bta_mce_cfg->p_sdp_db, bta_mce_mas_uuid, 81 p_rec); 82 83 APPL_TRACE_DEBUG("p_rec:%p", p_rec); 84 85 if (p_rec == NULL) break; 86 87 if (!SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe)) 88 continue; 89 90 evt_data.mas[found].scn = pe.params[0]; 91 92 p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME); 93 if (p_attr == NULL) continue; 94 95 evt_data.mas[found].p_srv_name = (char*)p_attr->attr_value.v.array; 96 evt_data.mas[found].srv_name_len = 97 SDP_DISC_ATTR_LEN(p_attr->attr_len_type); 98 99 p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAS_INSTANCE_ID); 100 if (p_attr == NULL) break; 101 102 evt_data.mas[found].instance_id = p_attr->attr_value.v.u8; 103 104 p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_MSG_TYPE); 105 if (p_attr == NULL) break; 106 107 evt_data.mas[found].msg_type = p_attr->attr_value.v.u8; 108 109 found++; 110 } while (p_rec != NULL && found < BTA_MCE_MAX_MAS_INSTANCES); 111 112 evt_data.num_mas = found; 113 evt_data.status = BTA_MCE_SUCCESS; 114 } 115 116 tBTA_MCE bta_mce; 117 bta_mce.mas_disc_comp = evt_data; 118 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, &bta_mce, 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 tBTA_MCE_STATUS status = BTA_MCE_SUCCESS; 132 bta_mce_cb.p_dm_cback = p_data->enable.p_cback; 133 tBTA_MCE bta_mce; 134 bta_mce.status = status; 135 bta_mce_cb.p_dm_cback(BTA_MCE_ENABLE_EVT, &bta_mce, 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 if (p_data == NULL) { 149 APPL_TRACE_DEBUG("MCE control block handle is null"); 150 return; 151 } 152 tBTA_MCE_STATUS status = BTA_MCE_FAILURE; 153 154 APPL_TRACE_DEBUG("%s in, sdp_active:%d", __func__, bta_mce_cb.sdp_active); 155 156 if (bta_mce_cb.sdp_active != BTA_MCE_SDP_ACT_NONE) { 157 /* SDP is still in progress */ 158 status = BTA_MCE_BUSY; 159 if (bta_mce_cb.p_dm_cback) { 160 tBTA_MCE bta_mce; 161 bta_mce.status = status; 162 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, &bta_mce, NULL); 163 } 164 165 return; 166 } 167 168 bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_YES; 169 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 &bta_mce_mas_uuid, 0, NULL); 173 174 if (!SDP_ServiceSearchAttributeRequest2(p_data->get_rmt_mas.bd_addr, 175 p_bta_mce_cfg->p_sdp_db, 176 bta_mce_search_cback, NULL)) { 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 tBTA_MCE bta_mce; 182 bta_mce.status = status; 183 bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, &bta_mce, NULL); 184 } 185 } 186 /* 187 else report the result when the cback is called 188 */ 189 } 190
