/*
 * File Name : hrt.h
 * 
 * This is a device driver for the High Resolution Technologies
 * Pixelsmart 512-8 frame grabber.

 * This file contains structures, constants, and ioctl numbers in
 * the driver that a user program might wish to use.

 *         Copyright (C) 2003, Florida State University
 *
 * This is free software; you can redistribute it and/or modify it under 
 * terms of the GNU General Public License as published  by the Free Soft- 
 * ware Foundation, Version 2.  This software is distributed in the hope
 * that it will be useful, but WITH OUT ANY WARRANTY;  without even the
 * implied warranty of MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for  more details. You should have
 * received  a copy of the GNU General Public License distributed with this
 * software; see file COPYING.  If not, write to  the Free Software Foundation,
 * 59 Temple Place - Suite 330,  Boston, MA 02111-1307, USA.
 */
#include <linux/ioctl.h>


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

#define HRT_DEVICES 2

const int HRT_DEVICE_IDS[] = {
	HRT_DEVICE_ID_COLOR,
	HRT_DEVICE_ID_GRAY
};

#define HRT_NUM_OF_ADDRESSES 9
#define HRT_MAX_BPP 2 //Max bits per pixel

const int HRT_ADDRESSES[] = {
	0, //filled in by PnP address
	0xC0000,
	0xC4000,
	0xC8000,
	0xCC000,
	0xD0000,
	0xD4000,
	0xD8000,
	0xDC000
};

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

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

/* NTSC 8-bit greyscale */
#define HRT_WIDTH             512
#define HRT_HEIGHT            480
#define HRT_BYTES_PER_PIXEL   1
#define HRT_BYTES_PER_LINE    (HRT_WIDTH * HRT_BYTES_PER_PIXEL)
#define HRT_FRAMESIZE         (HRT_WIDTH * HRT_HEIGHT * HRT_BYTES_PER_PIXEL)

/* Number of bytes of the device's memory that we ioremap() */
#define BYTES_NEEDED          0x4000

/*
 * 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

#define HRT_VID_TYPE         (VID_TYPE_CAPTURE | VID_TYPE_MONOCHROME)

/* Maximum number of buffers for streaming */
#define MAX_CAPTURE_BUFFERS  16

#define HRT_MAGIC_MMAP_OFFSET (PAGE_SIZE*100)

typedef struct hrt_wnd
{
	int rs;
	int re;
	int cs;
	int ce;
}hrt_wnd;


#define HRT_MAGIC  'x'
#define HRT_START_STREAM _IO(HRT_MAGIC, 0)
#define HRT_STOP_STREAM _IO(HRT_MAGIC, 1)
#define HRT_SET_WND _IOW(HRT_MAGIC,  2, struct hrt_wnd)
#define HRT_GET_WND _IOR(HRT_MAGIC,  3, struct hrt_wnd)
#define HRT_DOWN_USER_COUNT _IO(HRT_MAGIC,  4)
#define HRT_DB_ON _IO(HRT_MAGIC,  5) //Double Buffering ON
#define HRT_DB_OFF _IO(HRT_MAGIC,  6) //Double Buffering OFF
#define HRT_SET_CAPTURE_MODE _IOW(HRT_MAGIC,  7, int)
#define HRT_GET_CAPTURE_MODE _IOR(HRT_MAGIC,  8, int)