1 /****************************************************************************** 2 * 3 * Copyright (C) 2014 The Android Open Source Project 4 * Copyright (C) 2009-2012 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 * Filename: btif_mce.c 23 * 24 * Description: Message Access Profile (MCE role) Bluetooth Interface 25 * 26 * 27 ******************************************************************************/ 28 29 #define LOG_TAG "bt_btif_mce" 30 31 #include <stdlib.h> 32 #include <string.h> 33 34 #include <hardware/bluetooth.h> 35 #include <hardware/bt_mce.h> 36 37 #include "bt_types.h" 38 #include "bta_api.h" 39 #include "bta_mce_api.h" 40 #include "btcore/include/bdaddr.h" 41 #include "btif_common.h" 42 #include "btif_profile_queue.h" 43 #include "btif_util.h" 44 45 /***************************************************************************** 46 * Static variables 47 *****************************************************************************/ 48 49 static btmce_callbacks_t* bt_mce_callbacks = NULL; 50 51 static void btif_mce_mas_discovery_comp_evt(uint16_t event, char* p_param) { 52 tBTA_MCE_MAS_DISCOVERY_COMP* evt_data = (tBTA_MCE_MAS_DISCOVERY_COMP*)p_param; 53 btmce_mas_instance_t insts[BTA_MCE_MAX_MAS_INSTANCES]; 54 bt_bdaddr_t addr; 55 int i; 56 57 BTIF_TRACE_EVENT("%s: event = %d", __func__, event); 58 59 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) return; 60 61 for (i = 0; i < evt_data->num_mas; i++) { 62 insts[i].id = evt_data->mas[i].instance_id; 63 insts[i].scn = evt_data->mas[i].scn; 64 insts[i].msg_types = evt_data->mas[i].msg_type; 65 insts[i].p_name = evt_data->mas[i].p_srv_name; 66 } 67 68 bdcpy(addr.address, evt_data->remote_addr); 69 70 HAL_CBACK(bt_mce_callbacks, remote_mas_instances_cb, 71 (bt_status_t)evt_data->status, &addr, evt_data->num_mas, insts); 72 } 73 74 static void mas_discovery_comp_copy_cb(uint16_t event, char* p_dest, 75 char* p_src) { 76 tBTA_MCE_MAS_DISCOVERY_COMP* p_dest_data = 77 (tBTA_MCE_MAS_DISCOVERY_COMP*)p_dest; 78 tBTA_MCE_MAS_DISCOVERY_COMP* p_src_data = (tBTA_MCE_MAS_DISCOVERY_COMP*)p_src; 79 char* p_dest_str; 80 int i; 81 82 if (!p_src) return; 83 84 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) return; 85 86 maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data)); 87 88 p_dest_str = p_dest + sizeof(tBTA_MCE_MAS_DISCOVERY_COMP); 89 90 for (i = 0; i < p_src_data->num_mas; i++) { 91 p_dest_data->mas[i].p_srv_name = p_dest_str; 92 memcpy(p_dest_str, p_src_data->mas[i].p_srv_name, 93 p_src_data->mas[i].srv_name_len); 94 p_dest_str += p_src_data->mas[i].srv_name_len; 95 *(p_dest_str++) = '\0'; 96 } 97 } 98 99 static void mce_dm_cback(tBTA_MCE_EVT event, tBTA_MCE* p_data, 100 void* user_data) { 101 switch (event) { 102 case BTA_MCE_MAS_DISCOVERY_COMP_EVT: { 103 int i; 104 uint16_t param_len = sizeof(tBTA_MCE); 105 106 /* include space for all p_srv_name copies including null-termination */ 107 for (i = 0; i < p_data->mas_disc_comp.num_mas; i++) 108 param_len += (p_data->mas_disc_comp.mas[i].srv_name_len + 1); 109 110 /* need to deepy copy p_srv_name and null-terminate */ 111 btif_transfer_context(btif_mce_mas_discovery_comp_evt, event, 112 (char*)p_data, param_len, 113 mas_discovery_comp_copy_cb); 114 115 break; 116 } 117 } 118 } 119 120 static bt_status_t init(btmce_callbacks_t* callbacks) { 121 BTIF_TRACE_EVENT("%s", __func__); 122 123 bt_mce_callbacks = callbacks; 124 125 btif_enable_service(BTA_MAP_SERVICE_ID); 126 127 return BT_STATUS_SUCCESS; 128 } 129 130 static bt_status_t get_remote_mas_instances(bt_bdaddr_t* bd_addr) { 131 bdstr_t bdstr; 132 133 BTIF_TRACE_EVENT("%s: remote_addr=%s", __func__, 134 bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr))); 135 136 BTA_MceGetRemoteMasInstances(bd_addr->address); 137 138 return BT_STATUS_SUCCESS; 139 } 140 141 static const btmce_interface_t mce_if = { 142 sizeof(btmce_interface_t), init, get_remote_mas_instances, 143 }; 144 145 const btmce_interface_t* btif_mce_get_interface(void) { 146 BTIF_TRACE_EVENT("%s", __func__); 147 return &mce_if; 148 } 149 150 /******************************************************************************* 151 * 152 * Function btif_mce_execute_service 153 * 154 * Description Initializes/Shuts down the service 155 * 156 * Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise 157 * 158 ******************************************************************************/ 159 bt_status_t btif_mce_execute_service(bool b_enable) { 160 BTIF_TRACE_EVENT("%s enable:%d", __func__, b_enable); 161 162 if (b_enable) { 163 BTA_MceEnable(mce_dm_cback); 164 } else { 165 /* This is called on BT disable so no need to extra cleanup */ 166 } 167 return BT_STATUS_SUCCESS; 168 } 169
