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18#ifndef STKWEBCAM_H
19#define STKWEBCAM_H
20
21#include <linux/usb.h>
22#include <media/v4l2-device.h>
23#include <media/v4l2-ctrls.h>
24#include <media/v4l2-common.h>
25
26#define DRIVER_VERSION "v0.0.1"
27#define DRIVER_VERSION_NUM 0x000001
28
29#define MAX_ISO_BUFS 3
30#define ISO_FRAMES_PER_DESC 16
31#define ISO_MAX_FRAME_SIZE 3 * 1024
32#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
33
34struct stk_iso_buf {
35 void *data;
36 int length;
37 int read;
38 struct urb *urb;
39};
40
41
42struct stk_sio_buffer {
43 struct v4l2_buffer v4lbuf;
44 char *buffer;
45 int mapcount;
46 struct stk_camera *dev;
47 struct list_head list;
48};
49
50enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF};
51
52struct stk_video {
53 enum stk_mode mode;
54 __u32 palette;
55 int hflip;
56 int vflip;
57};
58
59enum stk_status {
60 S_PRESENT = 1,
61 S_INITIALISED = 2,
62 S_MEMALLOCD = 4,
63 S_STREAMING = 8,
64};
65#define is_present(dev) ((dev)->status & S_PRESENT)
66#define is_initialised(dev) ((dev)->status & S_INITIALISED)
67#define is_streaming(dev) ((dev)->status & S_STREAMING)
68#define is_memallocd(dev) ((dev)->status & S_MEMALLOCD)
69#define set_present(dev) ((dev)->status = S_PRESENT)
70#define unset_present(dev) ((dev)->status &= \
71 ~(S_PRESENT|S_INITIALISED|S_STREAMING))
72#define set_initialised(dev) ((dev)->status |= S_INITIALISED)
73#define unset_initialised(dev) ((dev)->status &= ~S_INITIALISED)
74#define set_memallocd(dev) ((dev)->status |= S_MEMALLOCD)
75#define unset_memallocd(dev) ((dev)->status &= ~S_MEMALLOCD)
76#define set_streaming(dev) ((dev)->status |= S_STREAMING)
77#define unset_streaming(dev) ((dev)->status &= ~S_STREAMING)
78
79struct regval {
80 unsigned reg;
81 unsigned val;
82};
83
84struct stk_camera {
85 struct v4l2_device v4l2_dev;
86 struct v4l2_ctrl_handler hdl;
87 struct video_device vdev;
88 struct usb_device *udev;
89 struct usb_interface *interface;
90 int webcam_model;
91 struct file *owner;
92 struct mutex lock;
93 int first_init;
94
95 u8 isoc_ep;
96
97
98 atomic_t urbs_used;
99
100 struct stk_video vsettings;
101
102 enum stk_status status;
103
104 spinlock_t spinlock;
105 wait_queue_head_t wait_frame;
106
107 struct stk_iso_buf *isobufs;
108
109 int frame_size;
110
111 int reading;
112 unsigned int n_sbufs;
113 struct stk_sio_buffer *sio_bufs;
114 struct list_head sio_avail;
115 struct list_head sio_full;
116 unsigned sequence;
117};
118
119#define vdev_to_camera(d) container_of(d, struct stk_camera, vdev)
120
121int stk_camera_write_reg(struct stk_camera *, u16, u8);
122int stk_camera_read_reg(struct stk_camera *, u16, u8 *);
123
124int stk_sensor_init(struct stk_camera *);
125int stk_sensor_configure(struct stk_camera *);
126int stk_sensor_sleep(struct stk_camera *dev);
127int stk_sensor_wakeup(struct stk_camera *dev);
128int stk_sensor_set_brightness(struct stk_camera *dev, int br);
129
130#endif
131