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/*
* indycam.h - Silicon Graphics IndyCam digital camera driver
*
* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
* Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _INDYCAM_H_
#define _INDYCAM_H_
/* I2C address for the Guinness Camera */
#define INDYCAM_ADDR 0x56
/* Camera version */
#define CAMERA_VERSION_INDY 0x10 /* v1.0 */
#define CAMERA_VERSION_MOOSE 0x12 /* v1.2 */
#define INDYCAM_VERSION_MAJOR(x) (((x) & 0xf0) >> 4)
#define INDYCAM_VERSION_MINOR(x) ((x) & 0x0f)
/* Register bus addresses */
#define INDYCAM_CONTROL 0x00
#define INDYCAM_SHUTTER 0x01
#define INDYCAM_GAIN 0x02
#define INDYCAM_BRIGHTNESS 0x03 /* read-only */
#define INDYCAM_RED_BALANCE 0x04
#define INDYCAM_BLUE_BALANCE 0x05
#define INDYCAM_RED_SATURATION 0x06
#define INDYCAM_BLUE_SATURATION 0x07
#define INDYCAM_GAMMA 0x08
#define INDYCAM_VERSION 0x0e /* read-only */
#define INDYCAM_RESET 0x0f /* write-only */
#define INDYCAM_LED 0x46
#define INDYCAM_ORIENTATION 0x47
#define INDYCAM_BUTTON 0x48
/* Field definitions of registers */
#define INDYCAM_CONTROL_AGCENA (1<<0) /* automatic gain control */
#define INDYCAM_CONTROL_AWBCTL (1<<1) /* automatic white balance */
/* 2-3 are reserved */
#define INDYCAM_CONTROL_EVNFLD (1<<4) /* read-only */
#define INDYCAM_SHUTTER_10000 0x02 /* 1/10000 second */
#define INDYCAM_SHUTTER_4000 0x04 /* 1/4000 second */
#define INDYCAM_SHUTTER_2000 0x08 /* 1/2000 second */
#define INDYCAM_SHUTTER_1000 0x10 /* 1/1000 second */
#define INDYCAM_SHUTTER_500 0x20 /* 1/500 second */
#define INDYCAM_SHUTTER_250 0x3f /* 1/250 second */
#define INDYCAM_SHUTTER_125 0x7e /* 1/125 second */
#define INDYCAM_SHUTTER_100 0x9e /* 1/100 second */
#define INDYCAM_SHUTTER_60 0x00 /* 1/60 second */
#define INDYCAM_LED_ACTIVE 0x10
#define INDYCAM_LED_INACTIVE 0x30
#define INDYCAM_ORIENTATION_BOTTOM_TO_TOP 0x40
#define INDYCAM_BUTTON_RELEASED 0x10
#define INDYCAM_SHUTTER_MIN 0x00
#define INDYCAM_SHUTTER_MAX 0xff
#define INDYCAM_GAIN_MIN 0x00
#define INDYCAM_GAIN_MAX 0xff
#define INDYCAM_RED_BALANCE_MIN 0x00 /* the effect is the opposite? */
#define INDYCAM_RED_BALANCE_MAX 0xff
#define INDYCAM_BLUE_BALANCE_MIN 0x00 /* the effect is the opposite? */
#define INDYCAM_BLUE_BALANCE_MAX 0xff
#define INDYCAM_RED_SATURATION_MIN 0x00
#define INDYCAM_RED_SATURATION_MAX 0xff
#define INDYCAM_BLUE_SATURATION_MIN 0x00
#define INDYCAM_BLUE_SATURATION_MAX 0xff
#define INDYCAM_GAMMA_MIN 0x00
#define INDYCAM_GAMMA_MAX 0xff
/* Driver interface definitions */
#define INDYCAM_VALUE_ENABLED 1
#define INDYCAM_VALUE_DISABLED 0
#define INDYCAM_VALUE_UNCHANGED -1
/* When setting controls, a value of -1 leaves the control unchanged. */
struct indycam_control {
int agc; /* boolean */
int awb; /* boolean */
int shutter;
int gain;
int red_balance;
int blue_balance;
int red_saturation;
int blue_saturation;
int gamma;
};
#define DECODER_INDYCAM_GET_CONTROLS _IOR('d', 193, struct indycam_control)
#define DECODER_INDYCAM_SET_CONTROLS _IOW('d', 194, struct indycam_control)
/* Default values for controls */
#define INDYCAM_AGC_DEFAULT INDYCAM_VALUE_ENABLED
#define INDYCAM_AWB_DEFAULT INDYCAM_VALUE_ENABLED
#define INDYCAM_SHUTTER_DEFAULT INDYCAM_SHUTTER_60
#define INDYCAM_GAIN_DEFAULT 0x80
#define INDYCAM_RED_BALANCE_DEFAULT 0x18
#define INDYCAM_BLUE_BALANCE_DEFAULT 0xa4
#define INDYCAM_RED_SATURATION_DEFAULT 0x80
#define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0
#define INDYCAM_GAMMA_DEFAULT 0x80
#endif
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