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
|
/*
* stk-webcam.h : Driver for Syntek 1125 USB webcam controller
*
* Copyright (C) 2006 Nicolas VIVIEN
* Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com>
*
* 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
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef STKWEBCAM_H
#define STKWEBCAM_H
#include <linux/usb.h>
#include <media/v4l2-common.h>
#define DRIVER_VERSION "v0.0.1"
#define DRIVER_VERSION_NUM 0x000001
#define MAX_ISO_BUFS 3
#define ISO_FRAMES_PER_DESC 16
#define ISO_MAX_FRAME_SIZE 3 * 1024
#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
#define PREFIX "stkwebcam: "
#define STK_INFO(str, args...) printk(KERN_INFO PREFIX str, ##args)
#define STK_ERROR(str, args...) printk(KERN_ERR PREFIX str, ##args)
#define STK_WARNING(str, args...) printk(KERN_WARNING PREFIX str, ##args)
struct stk_iso_buf {
void *data;
int length;
int read;
struct urb *urb;
};
/* Streaming IO buffers */
struct stk_sio_buffer {
struct v4l2_buffer v4lbuf;
char *buffer;
int mapcount;
struct stk_camera *dev;
struct list_head list;
};
enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF};
struct stk_video {
enum stk_mode mode;
int brightness;
__u32 palette;
int hflip;
int vflip;
};
enum stk_status {
S_PRESENT = 1,
S_INITIALISED = 2,
S_MEMALLOCD = 4,
S_STREAMING = 8,
};
#define is_present(dev) ((dev)->status & S_PRESENT)
#define is_initialised(dev) ((dev)->status & S_INITIALISED)
#define is_streaming(dev) ((dev)->status & S_STREAMING)
#define is_memallocd(dev) ((dev)->status & S_MEMALLOCD)
#define set_present(dev) ((dev)->status = S_PRESENT)
#define unset_present(dev) ((dev)->status &= \
~(S_PRESENT|S_INITIALISED|S_STREAMING))
#define set_initialised(dev) ((dev)->status |= S_INITIALISED)
#define set_memallocd(dev) ((dev)->status |= S_MEMALLOCD)
#define unset_memallocd(dev) ((dev)->status &= ~S_MEMALLOCD)
#define set_streaming(dev) ((dev)->status |= S_STREAMING)
#define unset_streaming(dev) ((dev)->status &= ~S_STREAMING)
struct regval {
unsigned reg;
unsigned val;
};
struct stk_camera {
struct video_device vdev;
struct usb_device *udev;
struct usb_interface *interface;
int webcam_model;
struct file *owner;
u8 isoc_ep;
struct kref kref;
/* Not sure if this is right */
atomic_t urbs_used;
struct stk_video vsettings;
enum stk_status status;
spinlock_t spinlock;
wait_queue_head_t wait_frame;
struct stk_iso_buf *isobufs;
int frame_size;
/* Streaming buffers */
unsigned int n_sbufs;
struct stk_sio_buffer *sio_bufs;
struct list_head sio_avail;
struct list_head sio_full;
unsigned sequence;
};
#define to_stk_camera(d) container_of(d, struct stk_camera, kref)
#define vdev_to_camera(d) container_of(d, struct stk_camera, vdev)
void stk_camera_delete(struct kref *);
int stk_camera_write_reg(struct stk_camera *, u16, u8);
int stk_camera_read_reg(struct stk_camera *, u16, int *);
int stk_sensor_outb(struct stk_camera *dev, u8 reg, u8 val);
int stk_sensor_inb(struct stk_camera *dev, u8 reg, u8 *val);
int stk_sensor_init(struct stk_camera *);
int stk_sensor_configure(struct stk_camera *);
int stk_sensor_sleep(struct stk_camera *dev);
int stk_sensor_wakeup(struct stk_camera *dev);
int stk_sensor_set_brightness(struct stk_camera *dev, int br);
#endif
|
