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
172
173
174
175
|
/******************************************************************************
*
* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
******************************************************************************/
#define _OSDEP_SERVICE_C_
#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <linux/vmalloc.h>
#define RT_TAG ('1178')
/*
* Translate the OS dependent @param error_code to OS independent RTW_STATUS_CODE23a
* @return: one of RTW_STATUS_CODE23a
*/
inline int RTW_STATUS_CODE23a(int error_code)
{
if (error_code >= 0)
return _SUCCESS;
return _FAIL;
}
inline u8 *_rtw_vmalloc(u32 sz)
{
u8 *pbuf;
pbuf = vmalloc(sz);
return pbuf;
}
inline u8 *_rtw_zvmalloc(u32 sz)
{
u8 *pbuf;
pbuf = _rtw_vmalloc(sz);
if (pbuf != NULL)
memset(pbuf, 0, sz);
return pbuf;
}
inline void _rtw_vmfree(u8 *pbuf, u32 sz)
{
vfree(pbuf);
}
void _rtw_init_queue23a(struct rtw_queue *pqueue)
{
INIT_LIST_HEAD(&pqueue->queue);
spin_lock_init(&pqueue->lock);
}
u32 _rtw_queue_empty23a(struct rtw_queue *pqueue)
{
if (list_empty(&pqueue->queue))
return true;
else
return false;
}
u64 rtw_modular6423a(u64 x, u64 y)
{
return do_div(x, y);
}
u64 rtw_division6423a(u64 x, u64 y)
{
do_div(x, y);
return x;
}
/* rtw_cbuf_full23a - test if cbuf is full
* @cbuf: pointer of struct rtw_cbuf
*
* Returns: true if cbuf is full
*/
inline bool rtw_cbuf_full23a(struct rtw_cbuf *cbuf)
{
return (cbuf->write == cbuf->read-1) ? true : false;
}
/* rtw_cbuf_empty23a - test if cbuf is empty
* @cbuf: pointer of struct rtw_cbuf
*
* Returns: true if cbuf is empty
*/
inline bool rtw_cbuf_empty23a(struct rtw_cbuf *cbuf)
{
return (cbuf->write == cbuf->read) ? true : false;
}
/**
* rtw_cbuf_push23a - push a pointer into cbuf
* @cbuf: pointer of struct rtw_cbuf
* @buf: pointer to push in
*
* Lock free operation, be careful of the use scheme
* Returns: true push success
*/
bool rtw_cbuf_push23a(struct rtw_cbuf *cbuf, void *buf)
{
if (rtw_cbuf_full23a(cbuf))
return _FAIL;
if (0)
DBG_8723A("%s on %u\n", __func__, cbuf->write);
cbuf->bufs[cbuf->write] = buf;
cbuf->write = (cbuf->write+1)%cbuf->size;
return _SUCCESS;
}
/**
* rtw_cbuf_pop23a - pop a pointer from cbuf
* @cbuf: pointer of struct rtw_cbuf
*
* Lock free operation, be careful of the use scheme
* Returns: pointer popped out
*/
void *rtw_cbuf_pop23a(struct rtw_cbuf *cbuf)
{
void *buf;
if (rtw_cbuf_empty23a(cbuf))
return NULL;
if (0)
DBG_8723A("%s on %u\n", __func__, cbuf->read);
buf = cbuf->bufs[cbuf->read];
cbuf->read = (cbuf->read+1)%cbuf->size;
return buf;
}
/**
* rtw_cbuf_alloc23a - allocte a rtw_cbuf with given size and do initialization
* @size: size of pointer
*
* Returns: pointer of srtuct rtw_cbuf, NULL for allocation failure
*/
struct rtw_cbuf *rtw_cbuf_alloc23a(u32 size)
{
struct rtw_cbuf *cbuf;
cbuf = kmalloc(sizeof(*cbuf) + sizeof(void *)*size, GFP_KERNEL);
if (cbuf) {
cbuf->write = 0;
cbuf->read = 0;
cbuf->size = size;
}
return cbuf;
}
/**
* rtw_cbuf_free - free the given rtw_cbuf
* @cbuf: pointer of struct rtw_cbuf to free
*/
void rtw_cbuf_free(struct rtw_cbuf *cbuf)
{
kfree(cbuf);
}
|
