drivers/media/video/indycam.h

   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_CONTROL                 0x00
  26 #define INDYCAM_SHUTTER                 0x01
  27 #define INDYCAM_GAIN                    0x02
  28 #define INDYCAM_BRIGHTNESS              0x03 /* read-only */
  29 #define INDYCAM_RED_BALANCE             0x04
  30 #define INDYCAM_BLUE_BALANCE            0x05
  31 #define INDYCAM_RED_SATURATION          0x06
  32 #define INDYCAM_BLUE_SATURATION         0x07
  33 #define INDYCAM_GAMMA                   0x08
  34 #define INDYCAM_VERSION                 0x0e /* read-only */
  35 #define INDYCAM_RESET                   0x0f /* write-only */
  36
  37 #define INDYCAM_LED                     0x46
  38 #define INDYCAM_ORIENTATION             0x47
  39 #define INDYCAM_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 #define INDYCAM_SHUTTER_MIN             0x00
  63 #define INDYCAM_SHUTTER_MAX             0xff
  64 #define INDYCAM_GAIN_MIN                0x00
  65 #define INDYCAM_GAIN_MAX                0xff
  66 #define INDYCAM_RED_BALANCE_MIN         0x00 /* the effect is the opposite? */
  67 #define INDYCAM_RED_BALANCE_MAX         0xff
  68 #define INDYCAM_BLUE_BALANCE_MIN        0x00 /* the effect is the opposite? */
  69 #define INDYCAM_BLUE_BALANCE_MAX        0xff
  70 #define INDYCAM_RED_SATURATION_MIN      0x00
  71 #define INDYCAM_RED_SATURATION_MAX      0xff
  72 #define INDYCAM_BLUE_SATURATION_MIN     0x00
  73 #define INDYCAM_BLUE_SATURATION_MAX     0xff
  74 #define INDYCAM_GAMMA_MIN               0x00
  75 #define INDYCAM_GAMMA_MAX               0xff
  76
  77 /* Driver interface definitions */
  78
  79 #define INDYCAM_VALUE_ENABLED           1
  80 #define INDYCAM_VALUE_DISABLED          0
  81 #define INDYCAM_VALUE_UNCHANGED         -1
  82
  83 /* When setting controls, a value of -1 leaves the control unchanged. */
  84 struct indycam_control {
  85         int agc;        /* boolean */
  86         int awb;        /* boolean */
  87         int shutter;
  88         int gain;
  89         int red_balance;
  90         int blue_balance;
  91         int red_saturation;
  92         int blue_saturation;
  93         int gamma;
  94 };
  95
  96 #define DECODER_INDYCAM_GET_CONTROLS    _IOR('d', 193, struct indycam_control)
  97 #define DECODER_INDYCAM_SET_CONTROLS    _IOW('d', 194, struct indycam_control)
  98
  99 /* Default values for controls */
 100
 101 #define INDYCAM_AGC_DEFAULT             INDYCAM_VALUE_ENABLED
 102 #define INDYCAM_AWB_DEFAULT             INDYCAM_VALUE_ENABLED
 103
 104 #define INDYCAM_SHUTTER_DEFAULT         INDYCAM_SHUTTER_60
 105 #define INDYCAM_GAIN_DEFAULT            0x80
 106 #define INDYCAM_RED_BALANCE_DEFAULT     0x18
 107 #define INDYCAM_BLUE_BALANCE_DEFAULT    0xa4
 108 #define INDYCAM_RED_SATURATION_DEFAULT  0x80
 109 #define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0
 110 #define INDYCAM_GAMMA_DEFAULT           0x80
 111
 112 #endif