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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. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #ifndef STKWEBCAM_H | |
23 | #define STKWEBCAM_H | |
24 | ||
25 | #include <linux/usb.h> | |
26 | #include <media/v4l2-common.h> | |
27 | ||
28 | #define DRIVER_VERSION "v0.0.1" | |
29 | #define DRIVER_VERSION_NUM 0x000001 | |
30 | ||
31 | #define MAX_ISO_BUFS 3 | |
32 | #define ISO_FRAMES_PER_DESC 16 | |
33 | #define ISO_MAX_FRAME_SIZE 3 * 1024 | |
34 | #define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) | |
35 | ||
36 | ||
37 | #define PREFIX "stkwebcam: " | |
38 | #define STK_INFO(str, args...) printk(KERN_INFO PREFIX str, ##args) | |
39 | #define STK_ERROR(str, args...) printk(KERN_ERR PREFIX str, ##args) | |
40 | #define STK_WARNING(str, args...) printk(KERN_WARNING PREFIX str, ##args) | |
41 | ||
42 | struct stk_iso_buf { | |
43 | void *data; | |
44 | int length; | |
45 | int read; | |
46 | struct urb *urb; | |
47 | }; | |
48 | ||
49 | /* Streaming IO buffers */ | |
50 | struct stk_sio_buffer { | |
51 | struct v4l2_buffer v4lbuf; | |
52 | char *buffer; | |
53 | int mapcount; | |
54 | struct stk_camera *dev; | |
55 | struct list_head list; | |
56 | }; | |
57 | ||
58 | enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF}; | |
59 | ||
60 | struct stk_video { | |
61 | enum stk_mode mode; | |
62 | int brightness; | |
63 | __u32 palette; | |
64 | int hflip; | |
65 | int vflip; | |
66 | }; | |
67 | ||
68 | enum stk_status { | |
69 | S_PRESENT = 1, | |
70 | S_INITIALISED = 2, | |
71 | S_MEMALLOCD = 4, | |
72 | S_STREAMING = 8, | |
73 | }; | |
74 | #define is_present(dev) ((dev)->status & S_PRESENT) | |
75 | #define is_initialised(dev) ((dev)->status & S_INITIALISED) | |
76 | #define is_streaming(dev) ((dev)->status & S_STREAMING) | |
77 | #define is_memallocd(dev) ((dev)->status & S_MEMALLOCD) | |
78 | #define set_present(dev) ((dev)->status = S_PRESENT) | |
79 | #define unset_present(dev) ((dev)->status &= \ | |
80 | ~(S_PRESENT|S_INITIALISED|S_STREAMING)) | |
81 | #define set_initialised(dev) ((dev)->status |= S_INITIALISED) | |
1fdd61c0 | 82 | #define unset_initialised(dev) ((dev)->status &= ~S_INITIALISED) |
ec16dae5 JVJ |
83 | #define set_memallocd(dev) ((dev)->status |= S_MEMALLOCD) |
84 | #define unset_memallocd(dev) ((dev)->status &= ~S_MEMALLOCD) | |
85 | #define set_streaming(dev) ((dev)->status |= S_STREAMING) | |
86 | #define unset_streaming(dev) ((dev)->status &= ~S_STREAMING) | |
87 | ||
88 | struct regval { | |
89 | unsigned reg; | |
90 | unsigned val; | |
91 | }; | |
92 | ||
93 | struct stk_camera { | |
94 | struct video_device vdev; | |
95 | struct usb_device *udev; | |
96 | struct usb_interface *interface; | |
97 | int webcam_model; | |
98 | struct file *owner; | |
99 | ||
100 | u8 isoc_ep; | |
101 | ||
ec16dae5 JVJ |
102 | /* Not sure if this is right */ |
103 | atomic_t urbs_used; | |
104 | ||
105 | struct stk_video vsettings; | |
106 | ||
107 | enum stk_status status; | |
108 | ||
109 | spinlock_t spinlock; | |
110 | wait_queue_head_t wait_frame; | |
111 | ||
112 | struct stk_iso_buf *isobufs; | |
113 | ||
114 | int frame_size; | |
115 | /* Streaming buffers */ | |
116 | unsigned int n_sbufs; | |
117 | struct stk_sio_buffer *sio_bufs; | |
118 | struct list_head sio_avail; | |
119 | struct list_head sio_full; | |
120 | unsigned sequence; | |
121 | }; | |
122 | ||
ec16dae5 JVJ |
123 | #define vdev_to_camera(d) container_of(d, struct stk_camera, vdev) |
124 | ||
ec16dae5 JVJ |
125 | int stk_camera_write_reg(struct stk_camera *, u16, u8); |
126 | int stk_camera_read_reg(struct stk_camera *, u16, int *); | |
127 | ||
ec16dae5 JVJ |
128 | int stk_sensor_init(struct stk_camera *); |
129 | int stk_sensor_configure(struct stk_camera *); | |
130 | int stk_sensor_sleep(struct stk_camera *dev); | |
131 | int stk_sensor_wakeup(struct stk_camera *dev); | |
132 | int stk_sensor_set_brightness(struct stk_camera *dev, int br); | |
133 | ||
134 | #endif |