1 /******************************************************************************
2 *
3 * Copyright (C) 2009-2013 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19
20 #include "gki.h"
21 #include "bta_gattc_co.h"
22 #include "bta_gattc_ci.h"
23 #include "btif_util.h"
24
25 #if( defined BLE_INCLUDED ) && (BLE_INCLUDED == TRUE)
26 #if( defined BTA_GATT_INCLUDED ) && (BTA_GATT_INCLUDED == TRUE)
27
28 #define GATT_CACHE_PREFIX "/data/misc/bluedroid/gatt_cache_"
29
30 static FILE* sCacheFD = 0;
31
getFilename(char * buffer,BD_ADDR bda)32 static void getFilename(char *buffer, BD_ADDR bda)
33 {
34 sprintf(buffer, "%s%02x%02x%02x%02x%02x%02x", GATT_CACHE_PREFIX
35 , bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
36 }
37
cacheClose()38 static void cacheClose()
39 {
40 if (sCacheFD != 0)
41 {
42 fclose(sCacheFD);
43 sCacheFD = 0;
44 }
45 }
46
cacheOpen(BD_ADDR bda,bool to_save)47 static bool cacheOpen(BD_ADDR bda, bool to_save)
48 {
49 char fname[255] = {0};
50 getFilename(fname, bda);
51
52 cacheClose();
53 sCacheFD = fopen(fname, to_save ? "w" : "r");
54
55 return (sCacheFD != 0);
56 }
57
cacheReset(BD_ADDR bda)58 static void cacheReset(BD_ADDR bda)
59 {
60 char fname[255] = {0};
61 getFilename(fname, bda);
62 unlink(fname);
63 }
64
65
66 /*****************************************************************************
67 ** Function Declarations
68 *****************************************************************************/
69
70 /*******************************************************************************
71 **
72 ** Function bta_gattc_co_cache_open
73 **
74 ** Description This callout function is executed by GATTC when a GATT server
75 ** cache is ready to be sent.
76 **
77 ** Parameter server_bda: server bd address of this cache belongs to
78 ** evt: call in event to be passed in when cache open is done.
79 ** conn_id: connection ID of this cache operation attach to.
80 ** to_save: open cache to save or to load.
81 **
82 ** Returns void.
83 **
84 *******************************************************************************/
bta_gattc_co_cache_open(BD_ADDR server_bda,UINT16 evt,UINT16 conn_id,BOOLEAN to_save)85 void bta_gattc_co_cache_open(BD_ADDR server_bda, UINT16 evt, UINT16 conn_id, BOOLEAN to_save)
86 {
87 /* open NV cache and send call in */
88 tBTA_GATT_STATUS status = BTA_GATT_OK;
89 if (!cacheOpen(server_bda, to_save))
90 status = BTA_GATT_ERROR;
91
92 BTIF_TRACE_DEBUG("%s() - status=%d", __FUNCTION__, status);
93 bta_gattc_ci_cache_open(server_bda, evt, status, conn_id);
94 }
95
96 /*******************************************************************************
97 **
98 ** Function bta_gattc_co_cache_load
99 **
100 ** Description This callout function is executed by GATT when server cache
101 ** is required to load.
102 **
103 ** Parameter server_bda: server bd address of this cache belongs to
104 ** evt: call in event to be passed in when cache save is done.
105 ** num_attr: number of attribute to be save.
106 ** attr_index: starting attribute index of the save operation.
107 ** conn_id: connection ID of this cache operation attach to.
108 ** Returns
109 **
110 *******************************************************************************/
bta_gattc_co_cache_load(BD_ADDR server_bda,UINT16 evt,UINT16 start_index,UINT16 conn_id)111 void bta_gattc_co_cache_load(BD_ADDR server_bda, UINT16 evt, UINT16 start_index, UINT16 conn_id)
112 {
113 UINT16 num_attr = 0;
114 tBTA_GATTC_NV_ATTR attr[BTA_GATTC_NV_LOAD_MAX];
115 tBTA_GATT_STATUS status = BTA_GATT_ERROR;
116
117 if (sCacheFD && (0 == fseek(sCacheFD, start_index * sizeof(tBTA_GATTC_NV_ATTR), SEEK_SET)))
118 {
119 num_attr = fread(attr, sizeof(tBTA_GATTC_NV_ATTR), BTA_GATTC_NV_LOAD_MAX, sCacheFD);
120 status = (num_attr < BTA_GATTC_NV_LOAD_MAX ? BTA_GATT_OK : BTA_GATT_MORE);
121 }
122
123 BTIF_TRACE_DEBUG("%s() - sCacheFD=%p, start_index=%d, read=%d, status=%d",
124 __FUNCTION__, sCacheFD, start_index, num_attr, status);
125 bta_gattc_ci_cache_load(server_bda, evt, num_attr, attr, status, conn_id);
126 }
127
128 /*******************************************************************************
129 **
130 ** Function bta_gattc_co_cache_save
131 **
132 ** Description This callout function is executed by GATT when a server cache
133 ** is available to save.
134 **
135 ** Parameter server_bda: server bd address of this cache belongs to
136 ** evt: call in event to be passed in when cache save is done.
137 ** num_attr: number of attribute to be save.
138 ** p_attr: pointer to the list of attributes to save.
139 ** attr_index: starting attribute index of the save operation.
140 ** conn_id: connection ID of this cache operation attach to.
141 ** Returns
142 **
143 *******************************************************************************/
bta_gattc_co_cache_save(BD_ADDR server_bda,UINT16 evt,UINT16 num_attr,tBTA_GATTC_NV_ATTR * p_attr_list,UINT16 attr_index,UINT16 conn_id)144 void bta_gattc_co_cache_save (BD_ADDR server_bda, UINT16 evt, UINT16 num_attr,
145 tBTA_GATTC_NV_ATTR *p_attr_list, UINT16 attr_index, UINT16 conn_id)
146 {
147 tBTA_GATT_STATUS status = BTA_GATT_OK;
148 UNUSED(attr_index);
149
150 if (sCacheFD != 0)
151 {
152 int num = fwrite(p_attr_list, sizeof(tBTA_GATTC_NV_ATTR), num_attr, sCacheFD);
153 BTIF_TRACE_DEBUG("%s() wrote %d", __FUNCTION__, num);
154 }
155
156 bta_gattc_ci_cache_save(server_bda, evt, status, conn_id);
157 }
158
159 /*******************************************************************************
160 **
161 ** Function bta_gattc_co_cache_close
162 **
163 ** Description This callout function is executed by GATTC when a GATT server
164 ** cache is written completely.
165 **
166 ** Parameter server_bda: server bd address of this cache belongs to
167 ** conn_id: connection ID of this cache operation attach to.
168 **
169 ** Returns void.
170 **
171 *******************************************************************************/
bta_gattc_co_cache_close(BD_ADDR server_bda,UINT16 conn_id)172 void bta_gattc_co_cache_close(BD_ADDR server_bda, UINT16 conn_id)
173 {
174 UNUSED(server_bda);
175 UNUSED(conn_id);
176
177 cacheClose();
178
179 /* close NV when server cache is done saving or loading,
180 does not need to do anything for now on Insight */
181
182 BTIF_TRACE_DEBUG("%s()", __FUNCTION__);
183 }
184
185 /*******************************************************************************
186 **
187 ** Function bta_gattc_co_cache_reset
188 **
189 ** Description This callout function is executed by GATTC to reset cache in
190 ** application
191 **
192 ** Parameter server_bda: server bd address of this cache belongs to
193 **
194 ** Returns void.
195 **
196 *******************************************************************************/
bta_gattc_co_cache_reset(BD_ADDR server_bda)197 void bta_gattc_co_cache_reset(BD_ADDR server_bda)
198 {
199 BTIF_TRACE_DEBUG("%s()", __FUNCTION__);
200 cacheReset(server_bda);
201 }
202
203 #endif
204 #endif
205
206