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
btif_mce_mas_discovery_comp_evt(UINT16 event,char * p_param)51 static 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
mas_discovery_comp_copy_cb(UINT16 event,char * p_dest,char * p_src)76 static 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
mce_dm_cback(tBTA_MCE_EVT event,tBTA_MCE * p_data,void * user_data)102 static 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
init(btmce_callbacks_t * callbacks)124 static 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
get_remote_mas_instances(bt_bdaddr_t * bd_addr)135 static 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
146 static const btmce_interface_t mce_if = {
147 sizeof(btmce_interface_t),
148 init,
149 get_remote_mas_instances,
150 };
151
btif_mce_get_interface(void)152 const 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 *******************************************************************************/
btif_mce_execute_service(BOOLEAN b_enable)167 bt_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