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 49static btmce_callbacks_t *bt_mce_callbacks = NULL; 50 51static void btif_mce_mas_discovery_comp_evt(UINT16 event, char *p_param) 52{ 53 tBTA_MCE_MAS_DISCOVERY_COMP *evt_data = (tBTA_MCE_MAS_DISCOVERY_COMP*) p_param; 54 btmce_mas_instance_t insts[BTA_MCE_MAX_MAS_INSTANCES]; 55 bt_bdaddr_t addr; 56 int i; 57 58 BTIF_TRACE_EVENT("%s: event = %d", __FUNCTION__, event); 59 60 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) 61 return; 62 63 for (i = 0; i < evt_data->num_mas; i++) 64 { 65 insts[i].id = evt_data->mas[i].instance_id; 66 insts[i].scn = evt_data->mas[i].scn; 67 insts[i].msg_types = evt_data->mas[i].msg_type; 68 insts[i].p_name = evt_data->mas[i].p_srv_name; 69 } 70 71 bdcpy(addr.address, evt_data->remote_addr); 72 73 HAL_CBACK(bt_mce_callbacks, remote_mas_instances_cb, evt_data->status, &addr, evt_data->num_mas, insts); 74} 75 76static void mas_discovery_comp_copy_cb(UINT16 event, char *p_dest, char *p_src) 77{ 78 tBTA_MCE_MAS_DISCOVERY_COMP *p_dest_data = (tBTA_MCE_MAS_DISCOVERY_COMP *) p_dest; 79 tBTA_MCE_MAS_DISCOVERY_COMP *p_src_data = (tBTA_MCE_MAS_DISCOVERY_COMP *) p_src; 80 char *p_dest_str; 81 int i; 82 83 if (!p_src) 84 return; 85 86 if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT) 87 return; 88 89 maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data)); 90 91 p_dest_str = p_dest + sizeof(tBTA_MCE_MAS_DISCOVERY_COMP); 92 93 for (i = 0; i < p_src_data->num_mas; i++) 94 { 95 p_dest_data->mas[i].p_srv_name = p_dest_str; 96 memcpy(p_dest_str, p_src_data->mas[i].p_srv_name, p_src_data->mas[i].srv_name_len); 97 p_dest_str += p_src_data->mas[i].srv_name_len; 98 *(p_dest_str++) = '\0'; 99 } 100} 101 102static void mce_dm_cback(tBTA_MCE_EVT event, tBTA_MCE *p_data, void *user_data) 103{ 104 switch (event) 105 { 106 case BTA_MCE_MAS_DISCOVERY_COMP_EVT: 107 { 108 int i; 109 UINT16 param_len = sizeof(tBTA_MCE); 110 111 /* include space for all p_srv_name copies including null-termination */ 112 for (i = 0; i < p_data->mas_disc_comp.num_mas; i++) 113 param_len += (p_data->mas_disc_comp.mas[i].srv_name_len + 1); 114 115 /* need to deepy copy p_srv_name and null-terminate */ 116 btif_transfer_context(btif_mce_mas_discovery_comp_evt, event, 117 (char*)p_data, param_len, mas_discovery_comp_copy_cb); 118 119 break; 120 } 121 } 122} 123 124static bt_status_t init(btmce_callbacks_t* callbacks) 125{ 126 BTIF_TRACE_EVENT("%s", __FUNCTION__); 127 128 bt_mce_callbacks = callbacks; 129 130 btif_enable_service(BTA_MAP_SERVICE_ID); 131 132 return BT_STATUS_SUCCESS; 133} 134 135static bt_status_t get_remote_mas_instances(bt_bdaddr_t *bd_addr) 136{ 137 bdstr_t bdstr; 138 139 BTIF_TRACE_EVENT("%s: remote_addr=%s", __FUNCTION__, bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr))); 140 141 BTA_MceGetRemoteMasInstances(bd_addr->address); 142 143 return BT_STATUS_SUCCESS; 144} 145 146static const btmce_interface_t mce_if = { 147 sizeof(btmce_interface_t), 148 init, 149 get_remote_mas_instances, 150}; 151 152const btmce_interface_t *btif_mce_get_interface(void) 153{ 154 BTIF_TRACE_EVENT("%s", __FUNCTION__); 155 return &mce_if; 156} 157 158/******************************************************************************* 159** 160** Function btif_mce_execute_service 161** 162** Description Initializes/Shuts down the service 163** 164** Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise 165** 166*******************************************************************************/ 167bt_status_t btif_mce_execute_service(BOOLEAN b_enable) 168{ 169 BTIF_TRACE_EVENT("%s enable:%d", __FUNCTION__, b_enable); 170 171 if (b_enable) 172 { 173 BTA_MceEnable(mce_dm_cback); 174 } 175 else 176 { 177 /* This is called on BT disable so no need to extra cleanup */ 178 } 179 return BT_STATUS_SUCCESS; 180} 181