/*
 * hrt_def.h
 */
#ifndef _HRT_DEF_H_
#define _HRT_DEF_H_

#ifndef __KERNEL__
#  define __KERNEL__
#endif

#include <linux/config.h>
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
#  define KERNEL_2_6
#else
#  ifndef MODULE
#    define MODULE
#  endif
#endif

#include <linux/module.h>
#ifdef KERNEL_2_6
#include <linux/moduleparam.h>
#endif


#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/errno.h>        /* error codes */
#include <linux/delay.h>        /* udelay */
#include <linux/slab.h>

#define hrt_printk(args...)	do{printk("hrt: "); printk(args);}while(0)

/* Parameters */
#ifdef KERNEL_2_6
#  define hrt_parm(name, pstr, type, perm) module_param(name, type, perm)
#else
#  define hrt_parm(name, pstr, type, perm) MODULE_PARM(name, pstr)
#endif

#define HRT_MAX_DEVICES 3
#define HRT_BYTES_NEEDED          0x4000

#define HRT_MAX_BUFFERS		6

#define HRT_SFB_INVALID		0
#define HRT_SFB_LOCKED		0
#define HRT_SFB_DONE		2

/*
 * Card specific constants
 */
#define HRT_VENDOR_ID         0x0004
#define HRT_DEVICE_ID_GRAY    0x0404
#define HRT_DEVICE_ID_COLOR   0x0408

#define HRT_CONTROL_REG       0x2000
#define HRT_I2C_REG	      0x2001
#define HRT_Y_LOW_REG         0x2002
#define HRT_Y_HIGH_REG        0x2003
#define HRT_INTERRUPT_ENABLE  0x2005

/*
 * The commands for freeze, live, etc.
 */
#define HRT_FIELD_MASK        0x01
#define HRT_LIVE_CMD          0x91
#define HRT_FREEZE_IMM_CMD    0x5B
#define HRT_FREEZE_NEXT_CMD   0x99

/*
 * A/D registers
 */
#define HRT_BRIGHTNESS_REG    0x19
#define HRT_CONTRAST_REG      0x13

/*
 * NTSC 8-bit greyscale
 */
#define HRT_MAX_WIDTH             512
#define HRT_MAX_HEIGHT            480
#define HRT_MAX_BYTES_PER_PIXEL   1
#define HRT_MAX_BYTES_PER_LINE    (HRT_MAX_WIDTH * HRT_MAX_BYTES_PER_PIXEL)
#define HRT_MAX_FRAMESIZE         (HRT_MAX_WIDTH * HRT_MAX_HEIGHT * HRT_MAX_BYTES_PER_PIXEL)

/*
 * The unique I2C bus address of the SAA7110 (A/D) device
 */
#define HRT_AD_DEVICE_ID (128+16+8+4)

/* Number of registers on the board- checked in i2c_init() */
#define HRT_SAA7110_NUMREGS 0x34

#endif