1 /*
2 * indycam.h - Silicon Graphics IndyCam digital camera driver
3 *
4 * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
5 * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
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 version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #ifndef _INDYCAM_H_
13 #define _INDYCAM_H_
14
15 /* I2C address for the Guinness Camera */
16 #define INDYCAM_ADDR 0x56
17
18 /* Camera version */
19 #define CAMERA_VERSION_INDY 0x10 /* v1.0 */
20 #define CAMERA_VERSION_MOOSE 0x12 /* v1.2 */
21 #define INDYCAM_VERSION_MAJOR(x) (((x) & 0xf0) >> 4)
22 #define INDYCAM_VERSION_MINOR(x) ((x) & 0x0f)
23
24 /* Register bus addresses */
25 #define INDYCAM_REG_CONTROL 0x00
26 #define INDYCAM_REG_SHUTTER 0x01
27 #define INDYCAM_REG_GAIN 0x02
28 #define INDYCAM_REG_BRIGHTNESS 0x03 /* read-only */
29 #define INDYCAM_REG_RED_BALANCE 0x04
30 #define INDYCAM_REG_BLUE_BALANCE 0x05
31 #define INDYCAM_REG_RED_SATURATION 0x06
32 #define INDYCAM_REG_BLUE_SATURATION 0x07
33 #define INDYCAM_REG_GAMMA 0x08
34 #define INDYCAM_REG_VERSION 0x0e /* read-only */
35 #define INDYCAM_REG_RESET 0x0f /* write-only */
36
37 #define INDYCAM_REG_LED 0x46
38 #define INDYCAM_REG_ORIENTATION 0x47
39 #define INDYCAM_REG_BUTTON 0x48
40
41 /* Field definitions of registers */
42 #define INDYCAM_CONTROL_AGCENA (1<<0) /* automatic gain control */
43 #define INDYCAM_CONTROL_AWBCTL (1<<1) /* automatic white balance */
44 /* 2-3 are reserved */
45 #define INDYCAM_CONTROL_EVNFLD (1<<4) /* read-only */
46
47 #define INDYCAM_SHUTTER_10000 0x02 /* 1/10000 second */
48 #define INDYCAM_SHUTTER_4000 0x04 /* 1/4000 second */
49 #define INDYCAM_SHUTTER_2000 0x08 /* 1/2000 second */
50 #define INDYCAM_SHUTTER_1000 0x10 /* 1/1000 second */
51 #define INDYCAM_SHUTTER_500 0x20 /* 1/500 second */
52 #define INDYCAM_SHUTTER_250 0x3f /* 1/250 second */
53 #define INDYCAM_SHUTTER_125 0x7e /* 1/125 second */
54 #define INDYCAM_SHUTTER_100 0x9e /* 1/100 second */
55 #define INDYCAM_SHUTTER_60 0x00 /* 1/60 second */
56
57 #define INDYCAM_LED_ACTIVE 0x10
58 #define INDYCAM_LED_INACTIVE 0x30
59 #define INDYCAM_ORIENTATION_BOTTOM_TO_TOP 0x40
60 #define INDYCAM_BUTTON_RELEASED 0x10
61
62 /* Values for controls */
63 #define INDYCAM_SHUTTER_MIN 0x00
64 #define INDYCAM_SHUTTER_MAX 0xff
65 #define INDYCAM_GAIN_MIN 0x00
66 #define INDYCAM_GAIN_MAX 0xff
67 #define INDYCAM_RED_BALANCE_MIN 0x00
68 #define INDYCAM_RED_BALANCE_MAX 0xff
69 #define INDYCAM_BLUE_BALANCE_MIN 0x00
70 #define INDYCAM_BLUE_BALANCE_MAX 0xff
71 #define INDYCAM_RED_SATURATION_MIN 0x00
72 #define INDYCAM_RED_SATURATION_MAX 0xff
73 #define INDYCAM_BLUE_SATURATION_MIN 0x00
74 #define INDYCAM_BLUE_SATURATION_MAX 0xff
75 #define INDYCAM_GAMMA_MIN 0x00
76 #define INDYCAM_GAMMA_MAX 0xff
77
78 #define INDYCAM_AGC_DEFAULT 1
79 #define INDYCAM_AWB_DEFAULT 0
80 #define INDYCAM_SHUTTER_DEFAULT 0xff
81 #define INDYCAM_GAIN_DEFAULT 0x80
82 #define INDYCAM_RED_BALANCE_DEFAULT 0x18
83 #define INDYCAM_BLUE_BALANCE_DEFAULT 0xa4
84 #define INDYCAM_RED_SATURATION_DEFAULT 0x80
85 #define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0
86 #define INDYCAM_GAMMA_DEFAULT 0x80
87
88 /* Driver interface definitions */
89
90 #define INDYCAM_CONTROL_AGC 0 /* boolean */
91 #define INDYCAM_CONTROL_AWB 1 /* boolean */
92 #define INDYCAM_CONTROL_SHUTTER 2
93 #define INDYCAM_CONTROL_GAIN 3
94 #define INDYCAM_CONTROL_RED_BALANCE 4
95 #define INDYCAM_CONTROL_BLUE_BALANCE 5
96 #define INDYCAM_CONTROL_RED_SATURATION 6
97 #define INDYCAM_CONTROL_BLUE_SATURATION 7
98 #define INDYCAM_CONTROL_GAMMA 8
99
100 struct indycam_control {
101 u8 type;
102 s32 value;
103 };
104
105 #define DECODER_INDYCAM_GET_CONTROL _IOR('d', 193, struct indycam_control)
106 #define DECODER_INDYCAM_SET_CONTROL _IOW('d', 194, struct indycam_control)
107
108 #endif
109
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