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 #include <hardware/bluetooth.h> 30 #include <hardware/bt_mce.h> 31 #include <stdlib.h> 32 #include <string.h> 33 34 #define LOG_TAG "bt_btif_mce" 35 #include "btif_common.h" 36 #include "btif_util.h" 37 #include "btif_profile_queue.h" 38 #include "bta_api.h" 39 #include "bta_mce_api.h" 40 41 #include "bt_types.h" 42 #include "btcore/include/bdaddr.h" 43 44 /***************************************************************************** 45 ** Static variables 46 ******************************************************************************/ 47 48 static btmce_callbacks_t *bt_mce_callbacks = NULL; 49 50 static void btif_mce_mas_discovery_comp_evt(UINT16 event, char *p_param) 51 { 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", __FUNCTION__, event); 58 59 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) 60 return; 61 62 for (i = 0; i < evt_data->num_mas; i++) 63 { 64 insts[i].id = evt_data->mas[i].instance_id; 65 insts[i].scn = evt_data->mas[i].scn; 66 insts[i].msg_types = evt_data->mas[i].msg_type; 67 insts[i].p_name = evt_data->mas[i].p_srv_name; 68 } 69 70 bdcpy(addr.address, evt_data->remote_addr); 71 72 HAL_CBACK(bt_mce_callbacks, remote_mas_instances_cb, evt_data->status, &addr, evt_data->num_mas, insts); 73 } 74 75 static void mas_discovery_comp_copy_cb(UINT16 event, char *p_dest, char *p_src) 76 { 77 tBTA_MCE_MAS_DISCOVERY_COMP *p_dest_data = (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) 83 return; 84 85 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) 86 return; 87 88 memcpy(p_dest_data, p_src_data, sizeof(tBTA_MCE_MAS_DISCOVERY_COMP)); 89 90 p_dest_str = p_dest + sizeof(tBTA_MCE_MAS_DISCOVERY_COMP); 91 92 for (i = 0; i < p_src_data->num_mas; i++) 93 { 94 p_dest_data->mas[i].p_srv_name = p_dest_str; 95 memcpy(p_dest_str, p_src_data->mas[i].p_srv_name, p_src_data->mas[i].srv_name_len); 96 p_dest_str += p_src_data->mas[i].srv_name_len; 97 *(p_dest_str++) = '\0'; 98 } 99 } 100 101 static void mce_dm_cback(tBTA_MCE_EVT event, tBTA_MCE *p_data, void *user_data) 102 { 103 switch (event) 104 { 105 case BTA_MCE_MAS_DISCOVERY_COMP_EVT: 106 { 107 int i; 108 UINT16 param_len = sizeof(tBTA_MCE); 109 110 /* include space for all p_srv_name copies including null-termination */ 111 for (i = 0; i < p_data->mas_disc_comp.num_mas; i++) 112 param_len += (p_data->mas_disc_comp.mas[i].srv_name_len + 1); 113 114 /* need to deepy copy p_srv_name and null-terminate */ 115 btif_transfer_context(btif_mce_mas_discovery_comp_evt, event, 116 (char*)p_data, param_len, mas_discovery_comp_copy_cb); 117 118 break; 119 } 120 } 121 } 122 123 static bt_status_t init(btmce_callbacks_t* callbacks) 124 { 125 BTIF_TRACE_EVENT("%s", __FUNCTION__); 126 127 bt_mce_callbacks = callbacks; 128 129 btif_enable_service(BTA_MAP_SERVICE_ID); 130 131 return BT_STATUS_SUCCESS; 132 } 133 134 static bt_status_t get_remote_mas_instances(bt_bdaddr_t *bd_addr) 135 { 136 bdstr_t bdstr; 137 138 BTIF_TRACE_EVENT("%s: remote_addr=%s", __FUNCTION__, bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr))); 139 140 BTA_MceGetRemoteMasInstances(bd_addr->address); 141 142 return BT_STATUS_SUCCESS; 143 } 144 145 static const btmce_interface_t mce_if = { 146 sizeof(btmce_interface_t), 147 init, 148 get_remote_mas_instances, 149 }; 150 151 const btmce_interface_t *btif_mce_get_interface(void) 152 { 153 BTIF_TRACE_EVENT("%s", __FUNCTION__); 154 return &mce_if; 155 } 156 157 /******************************************************************************* 158 ** 159 ** Function btif_mce_execute_service 160 ** 161 ** Description Initializes/Shuts down the service 162 ** 163 ** Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise 164 ** 165 *******************************************************************************/ 166 bt_status_t btif_mce_execute_service(BOOLEAN b_enable) 167 { 168 BTIF_TRACE_EVENT("%s enable:%d", __FUNCTION__, b_enable); 169 170 if (b_enable) 171 { 172 BTA_MceEnable(mce_dm_cback); 173 } 174 else 175 { 176 /* This is called on BT disable so no need to extra cleanup */ 177 } 178 return BT_STATUS_SUCCESS; 179 } 180
