• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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