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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/***************************************************************************
* V4L2 driver for SN9C10x PC Camera Controllers *
* *
* Copyright (C) 2004-2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* 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. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
***************************************************************************/
#ifndef _SN9C102_H_
#define _SN9C102_H_
#include <linux/version.h>
#include <linux/usb.h>
#include <linux/videodev.h>
#include <linux/device.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/types.h>
#include <linux/param.h>
#include <linux/rwsem.h>
#include <asm/semaphore.h>
#include "sn9c102_sensor.h"
/*****************************************************************************/
#define SN9C102_DEBUG
#define SN9C102_DEBUG_LEVEL 2
#define SN9C102_MAX_DEVICES 64
#define SN9C102_PRESERVE_IMGSCALE 0
#define SN9C102_FORCE_MUNMAP 0
#define SN9C102_MAX_FRAMES 32
#define SN9C102_URBS 2
#define SN9C102_ISO_PACKETS 7
#define SN9C102_ALTERNATE_SETTING 8
#define SN9C102_URB_TIMEOUT msecs_to_jiffies(2 * SN9C102_ISO_PACKETS)
#define SN9C102_CTRL_TIMEOUT 300
/*****************************************************************************/
#define SN9C102_MODULE_NAME "V4L2 driver for SN9C10x PC Camera Controllers"
#define SN9C102_MODULE_AUTHOR "(C) 2004-2006 Luca Risolia"
#define SN9C102_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>"
#define SN9C102_MODULE_LICENSE "GPL"
#define SN9C102_MODULE_VERSION "1:1.25"
#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 25)
enum sn9c102_bridge {
BRIDGE_SN9C101 = 0x01,
BRIDGE_SN9C102 = 0x02,
BRIDGE_SN9C103 = 0x04,
};
SN9C102_ID_TABLE
SN9C102_SENSOR_TABLE
enum sn9c102_frame_state {
F_UNUSED,
F_QUEUED,
F_GRABBING,
F_DONE,
F_ERROR,
};
struct sn9c102_frame_t {
void* bufmem;
struct v4l2_buffer buf;
enum sn9c102_frame_state state;
struct list_head frame;
unsigned long vma_use_count;
};
enum sn9c102_dev_state {
DEV_INITIALIZED = 0x01,
DEV_DISCONNECTED = 0x02,
DEV_MISCONFIGURED = 0x04,
};
enum sn9c102_io_method {
IO_NONE,
IO_READ,
IO_MMAP,
};
enum sn9c102_stream_state {
STREAM_OFF,
STREAM_INTERRUPT,
STREAM_ON,
};
typedef char sn9c103_sof_header_t[18];
typedef char sn9c102_sof_header_t[12];
typedef char sn9c102_eof_header_t[4];
struct sn9c102_sysfs_attr {
u8 reg, i2c_reg;
sn9c103_sof_header_t frame_header;
};
struct sn9c102_module_param {
u8 force_munmap;
};
static DECLARE_MUTEX(sn9c102_sysfs_lock);
static DECLARE_RWSEM(sn9c102_disconnect);
struct sn9c102_device {
struct device dev;
struct video_device* v4ldev;
enum sn9c102_bridge bridge;
struct sn9c102_sensor* sensor;
struct usb_device* usbdev;
struct urb* urb[SN9C102_URBS];
void* transfer_buffer[SN9C102_URBS];
u8* control_buffer;
struct sn9c102_frame_t *frame_current, frame[SN9C102_MAX_FRAMES];
struct list_head inqueue, outqueue;
u32 frame_count, nbuffers, nreadbuffers;
enum sn9c102_io_method io;
enum sn9c102_stream_state stream;
struct v4l2_jpegcompression compression;
struct sn9c102_sysfs_attr sysfs;
sn9c103_sof_header_t sof_header;
u16 reg[63];
struct sn9c102_module_param module_param;
enum sn9c102_dev_state state;
u8 users;
struct semaphore dev_sem, fileop_sem;
spinlock_t queue_lock;
wait_queue_head_t open, wait_frame, wait_stream;
};
/*****************************************************************************/
void
sn9c102_attach_sensor(struct sn9c102_device* cam,
struct sn9c102_sensor* sensor)
{
cam->sensor = sensor;
cam->sensor->dev = &cam->dev;
cam->sensor->usbdev = cam->usbdev;
}
/*****************************************************************************/
#undef DBG
#undef KDBG
#ifdef SN9C102_DEBUG
# define DBG(level, fmt, args...) \
do { \
if (debug >= (level)) { \
if ((level) == 1) \
dev_err(&cam->dev, fmt "\n", ## args); \
else if ((level) == 2) \
dev_info(&cam->dev, fmt "\n", ## args); \
else if ((level) >= 3) \
dev_info(&cam->dev, "[%s:%d] " fmt "\n", \
__FUNCTION__, __LINE__ , ## args); \
} \
} while (0)
# define KDBG(level, fmt, args...) \
do { \
if (debug >= (level)) { \
if ((level) == 1 || (level) == 2) \
pr_info("sn9c102: " fmt "\n", ## args); \
else if ((level) == 3) \
pr_debug("sn9c102: [%s:%d] " fmt "\n", __FUNCTION__, \
__LINE__ , ## args); \
} \
} while (0)
#else
# define KDBG(level, fmt, args...) do {;} while(0)
# define DBG(level, fmt, args...) do {;} while(0)
#endif
#undef PDBG
#define PDBG(fmt, args...) \
dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args)
#undef PDBGG
#define PDBGG(fmt, args...) do {;} while(0) /* placeholder */
#endif /* _SN9C102_H_ */
|
