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 33 #define LOG_TAG "BTIF_MCE" 34 #include "btif_common.h" 35 #include "btif_util.h" 36 #include "btif_profile_queue.h" 37 #include "bta_api.h" 38 #include "bta_mce_api.h" 39 40 #include "bd.h" 41 42 /***************************************************************************** 43 ** Static variables 44 ******************************************************************************/ 45 46 static btmce_callbacks_t *bt_mce_callbacks = NULL; 47 48 static void btif_mce_mas_discovery_comp_evt(UINT16 event, char *p_param) 49 { 50 tBTA_MCE_MAS_DISCOVERY_COMP *evt_data = (tBTA_MCE_MAS_DISCOVERY_COMP*) p_param; 51 btmce_mas_instance_t insts[BTA_MCE_MAX_MAS_INSTANCES]; 52 bt_bdaddr_t addr; 53 int i; 54 55 BTIF_TRACE_EVENT("%s: event = %d", __FUNCTION__, event); 56 57 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) 58 return; 59 60 for (i = 0; i < evt_data->num_mas; i++) 61 { 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, evt_data->status, &addr, evt_data->num_mas, insts); 71 } 72 73 static void mas_discovery_comp_copy_cb(UINT16 event, char *p_dest, char *p_src) 74 { 75 tBTA_MCE_MAS_DISCOVERY_COMP *p_dest_data = (tBTA_MCE_MAS_DISCOVERY_COMP *) p_dest; 76 tBTA_MCE_MAS_DISCOVERY_COMP *p_src_data = (tBTA_MCE_MAS_DISCOVERY_COMP *) p_src; 77 char *p_dest_str; 78 int i; 79 80 if (!p_src) 81 return; 82 83 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) 84 return; 85 86 memcpy(p_dest_data, p_src_data, sizeof(tBTA_MCE_MAS_DISCOVERY_COMP)); 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 { 92 p_dest_data->mas[i].p_srv_name = p_dest_str; 93 memcpy(p_dest_str, p_src_data->mas[i].p_srv_name, 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, void *user_data) 100 { 101 switch (event) 102 { 103 case BTA_MCE_MAS_DISCOVERY_COMP_EVT: 104 { 105 int i; 106 UINT16 param_len = sizeof(tBTA_MCE); 107 108 /* include space for all p_srv_name copies including null-termination */ 109 for (i = 0; i < p_data->mas_disc_comp.num_mas; i++) 110 param_len += (p_data->mas_disc_comp.mas[i].srv_name_len + 1); 111 112 /* need to deepy copy p_srv_name and null-terminate */ 113 btif_transfer_context(btif_mce_mas_discovery_comp_evt, event, 114 (char*)p_data, param_len, mas_discovery_comp_copy_cb); 115 116 break; 117 } 118 } 119 } 120 121 static bt_status_t init(btmce_callbacks_t* callbacks) 122 { 123 BTIF_TRACE_EVENT("%s", __FUNCTION__); 124 125 bt_mce_callbacks = callbacks; 126 127 btif_enable_service(BTA_MAP_SERVICE_ID); 128 129 return BT_STATUS_SUCCESS; 130 } 131 132 static bt_status_t get_remote_mas_instances(bt_bdaddr_t *bd_addr) 133 { 134 bdstr_t bdstr; 135 136 BTIF_TRACE_EVENT("%s: remote_addr=%s", __FUNCTION__, bd2str(bd_addr, &bdstr)); 137 138 BTA_MceGetRemoteMasInstances(bd_addr->address); 139 140 return BT_STATUS_SUCCESS; 141 } 142 143 static const btmce_interface_t mce_if = { 144 sizeof(btmce_interface_t), 145 init, 146 get_remote_mas_instances, 147 }; 148 149 const btmce_interface_t *btif_mce_get_interface(void) 150 { 151 BTIF_TRACE_EVENT("%s", __FUNCTION__); 152 return &mce_if; 153 } 154 155 /******************************************************************************* 156 ** 157 ** Function btif_mce_execute_service 158 ** 159 ** Description Initializes/Shuts down the service 160 ** 161 ** Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise 162 ** 163 *******************************************************************************/ 164 bt_status_t btif_mce_execute_service(BOOLEAN b_enable) 165 { 166 BTIF_TRACE_EVENT("%s enable:%d", __FUNCTION__, b_enable); 167 168 if (b_enable) 169 { 170 BTA_MceEnable(mce_dm_cback); 171 } 172 else 173 { 174 /* This is called on BT disable so no need to extra cleanup */ 175 } 176 return BT_STATUS_SUCCESS; 177 } 178
