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ec16dae5 JVJ |
1 | /* |
2 | * stk-webcam.h : Driver for Syntek 1125 USB webcam controller | |
3 | * | |
4 | * Copyright (C) 2006 Nicolas VIVIEN | |
5 | * Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
ec16dae5 JVJ |
16 | */ |
17 | ||
18 | #ifndef STKWEBCAM_H | |
19 | #define STKWEBCAM_H | |
20 | ||
21 | #include <linux/usb.h> | |
968c60f6 | 22 | #include <media/v4l2-device.h> |
dc0fb286 | 23 | #include <media/v4l2-ctrls.h> |
ec16dae5 JVJ |
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 | ||
34 | ||
35 | #define PREFIX "stkwebcam: " | |
36 | #define STK_INFO(str, args...) printk(KERN_INFO PREFIX str, ##args) | |
37 | #define STK_ERROR(str, args...) printk(KERN_ERR PREFIX str, ##args) | |
38 | #define STK_WARNING(str, args...) printk(KERN_WARNING PREFIX str, ##args) | |
39 | ||
40 | struct stk_iso_buf { | |
41 | void *data; | |
42 | int length; | |
43 | int read; | |
44 | struct urb *urb; | |
45 | }; | |
46 | ||
47 | /* Streaming IO buffers */ | |
48 | struct stk_sio_buffer { | |
49 | struct v4l2_buffer v4lbuf; | |
50 | char *buffer; | |
51 | int mapcount; | |
52 | struct stk_camera *dev; | |
53 | struct list_head list; | |
54 | }; | |
55 | ||
56 | enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF}; | |
57 | ||
58 | struct stk_video { | |
59 | enum stk_mode mode; | |
ec16dae5 JVJ |
60 | __u32 palette; |
61 | int hflip; | |
62 | int vflip; | |
63 | }; | |
64 | ||
65 | enum stk_status { | |
66 | S_PRESENT = 1, | |
67 | S_INITIALISED = 2, | |
68 | S_MEMALLOCD = 4, | |
69 | S_STREAMING = 8, | |
70 | }; | |
71 | #define is_present(dev) ((dev)->status & S_PRESENT) | |
72 | #define is_initialised(dev) ((dev)->status & S_INITIALISED) | |
73 | #define is_streaming(dev) ((dev)->status & S_STREAMING) | |
74 | #define is_memallocd(dev) ((dev)->status & S_MEMALLOCD) | |
75 | #define set_present(dev) ((dev)->status = S_PRESENT) | |
76 | #define unset_present(dev) ((dev)->status &= \ | |
77 | ~(S_PRESENT|S_INITIALISED|S_STREAMING)) | |
78 | #define set_initialised(dev) ((dev)->status |= S_INITIALISED) | |
1fdd61c0 | 79 | #define unset_initialised(dev) ((dev)->status &= ~S_INITIALISED) |
ec16dae5 JVJ |
80 | #define set_memallocd(dev) ((dev)->status |= S_MEMALLOCD) |
81 | #define unset_memallocd(dev) ((dev)->status &= ~S_MEMALLOCD) | |
82 | #define set_streaming(dev) ((dev)->status |= S_STREAMING) | |
83 | #define unset_streaming(dev) ((dev)->status &= ~S_STREAMING) | |
84 | ||
85 | struct regval { | |
86 | unsigned reg; | |
87 | unsigned val; | |
88 | }; | |
89 | ||
90 | struct stk_camera { | |
968c60f6 | 91 | struct v4l2_device v4l2_dev; |
dc0fb286 | 92 | struct v4l2_ctrl_handler hdl; |
ec16dae5 JVJ |
93 | struct video_device vdev; |
94 | struct usb_device *udev; | |
95 | struct usb_interface *interface; | |
96 | int webcam_model; | |
97 | struct file *owner; | |
f80daa2d | 98 | struct mutex lock; |
89ea4706 | 99 | int first_init; |
ec16dae5 JVJ |
100 | |
101 | u8 isoc_ep; | |
102 | ||
ec16dae5 JVJ |
103 | /* Not sure if this is right */ |
104 | atomic_t urbs_used; | |
105 | ||
106 | struct stk_video vsettings; | |
107 | ||
108 | enum stk_status status; | |
109 | ||
110 | spinlock_t spinlock; | |
111 | wait_queue_head_t wait_frame; | |
112 | ||
113 | struct stk_iso_buf *isobufs; | |
114 | ||
115 | int frame_size; | |
116 | /* Streaming buffers */ | |
1b499fe5 | 117 | int reading; |
ec16dae5 JVJ |
118 | unsigned int n_sbufs; |
119 | struct stk_sio_buffer *sio_bufs; | |
120 | struct list_head sio_avail; | |
121 | struct list_head sio_full; | |
122 | unsigned sequence; | |
123 | }; | |
124 | ||
ec16dae5 JVJ |
125 | #define vdev_to_camera(d) container_of(d, struct stk_camera, vdev) |
126 | ||
ec16dae5 | 127 | int stk_camera_write_reg(struct stk_camera *, u16, u8); |
d08876f5 | 128 | int stk_camera_read_reg(struct stk_camera *, u16, u8 *); |
ec16dae5 | 129 | |
ec16dae5 JVJ |
130 | int stk_sensor_init(struct stk_camera *); |
131 | int stk_sensor_configure(struct stk_camera *); | |
132 | int stk_sensor_sleep(struct stk_camera *dev); | |
133 | int stk_sensor_wakeup(struct stk_camera *dev); | |
134 | int stk_sensor_set_brightness(struct stk_camera *dev, int br); | |
135 | ||
136 | #endif |