1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* Bluetooth Vendor Library for MTK's libbluetoothdrv blob
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "libbt_vendor_mtk"
#include <stdio.h>
#include <dlfcn.h>
#include <utils/Log.h>
#include <pthread.h>
#include <fcntl.h>
#include <errno.h>
#include <bt_vendor_lib.h>
#include <bt_hci_lib.h>
#include <bt_hci_bdroid.h>
#include <utils.h>
/**
* TODO: check/fix this value. does this make sense for MTK? It is taken from TI
* Low power mode: default transport idle timer
*/
#define WL_DEFAULT_LPM_IDLE_TIMEOUT 200
static void *mtklib_handle = NULL;
typedef int (*ENABLE)(int flag, void *func_cb);
typedef int (*DISABLE)(int bt_fd);
unsigned int hci_tty_fd = -1;
ENABLE mtk_bt_enable = NULL;
DISABLE mtk_bt_disable = NULL;
bt_vendor_callbacks_t *bt_vendor_cbacks = NULL;
void hw_config_cback(HC_BT_HDR *p_evt_buf);
/*******************************************************************************
*
* Function hw_config_cback
*
* Description Callback function for controller configuration
*
* Returns None
*
* *******************************************************************************/
void hw_config_cback(HC_BT_HDR *p_evt_buf)
{
//ALOGI("hw_config_cback");
}
int mtk_init(const bt_vendor_callbacks_t* p_cb, unsigned char *local_bdaddr) {
const char *dlerrors;
//ALOGI("libbt-vendor init for MTK blob");
if (p_cb == NULL)
{
ALOGE("init failed with no user callbacks!");
return BT_HC_STATUS_FAIL;
}
bt_vendor_cbacks = (bt_vendor_callbacks_t *) p_cb;
dlerror();
mtklib_handle = dlopen("libbluetoothdrv.so", RTLD_LAZY);
if (! mtklib_handle) {
ALOGE("Failed to open libbluetoothdrv library");
return -1;
}
mtk_bt_enable = dlsym(mtklib_handle, "mtk_bt_enable");
mtk_bt_disable = dlsym(mtklib_handle, "mtk_bt_disable");
if ((dlerrors = dlerror()) != NULL){
ALOGE("Errors while opening symbols from mtk blob");
dlclose(mtklib_handle);
}
return 0;
}
void mtk_cleanup(void) {
//ALOGI("vendor cleanup");
bt_vendor_cbacks = NULL;
if (mtklib_handle) {
dlclose(mtklib_handle);
}
}
int mtk_open(void **param) {
int (*fd_array)[] = (int (*)[]) param;
int fd, idx;
fd = mtk_bt_enable(0, NULL);
if (fd < 0) {
ALOGE(" Can't open mtk fd");
return -1;
}
for (idx = 0; idx < CH_MAX; idx++)
(*fd_array)[idx] = fd;
hci_tty_fd = fd; /* for userial_close op */
return 1; /* CMD/EVT/ACL on same fd */
}
int mtk_close() {
if (hci_tty_fd == (unsigned int) -1)
return -1;
return mtk_bt_disable(hci_tty_fd);
}
int mtk_op(bt_vendor_opcode_t opcode, void **param) {
int ret = 0;
switch(opcode)
{
case BT_VND_OP_POWER_CTRL:
break;
case BT_VND_OP_SCO_CFG:
break;
case BT_VND_OP_GET_LPM_IDLE_TIMEOUT:
*((uint32_t *) param) = WL_DEFAULT_LPM_IDLE_TIMEOUT;
break;
case BT_VND_OP_LPM_SET_MODE:
break;
case BT_VND_OP_LPM_WAKE_SET_STATE:
break;
case BT_VND_OP_USERIAL_OPEN:
ret = mtk_open(param);
break;
case BT_VND_OP_USERIAL_CLOSE:
ret = mtk_close();
break;
/* Since new stack expects fwcfg_cb we are returning SUCCESS here
* in actual, firmware download is already happened when /dev/hci_tty
* opened.
*/
case BT_VND_OP_FW_CFG:
bt_vendor_cbacks->fwcfg_cb(BT_VND_OP_RESULT_SUCCESS);
break;
case BT_VND_OP_EPILOG:
bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
break;
default:
ALOGW("Unknown opcode: %d", opcode);
break;
}
return ret;
}
const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = {
.init = mtk_init,
.op = mtk_op,
.cleanup = mtk_cleanup,
};
int main()
{
return 0;
}
|
