path: root/include/linux/ide.h

#ifndef _IDE_H
#define _IDE_H
/*
 *  linux/include/linux/ide.h
 *
 *  Copyright (C) 1994-2002  Linus Torvalds & authors
 */

#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/ata.h>
#include <linux/blkdev.h>
#include <linux/proc_fs.h>
#include <linux/interrupt.h>
#include <linux/bitops.h>
#include <linux/bio.h>
#include <linux/device.h>
#include <linux/pci.h>
#include <linux/completion.h>
#include <linux/pm.h>
#ifdef CONFIG_BLK_DEV_IDEACPI
#include <acpi/acpi.h>
#endif
#include <asm/byteorder.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/mutex.h>

#if defined(CONFIG_CRIS) || defined(CONFIG_FRV) || defined(CONFIG_MN10300)
# define SUPPORT_VLB_SYNC 0
#else
# define SUPPORT_VLB_SYNC 1
#endif

/*
 * Probably not wise to fiddle with these
 */
#define IDE_DEFAULT_MAX_FAILURES	1
#define ERROR_MAX	8	/* Max read/write errors per sector */
#define ERROR_RESET	3	/* Reset controller every 4th retry */
#define ERROR_RECAL	1	/* Recalibrate every 2nd retry */

/* Error codes returned in rq->errors to the higher part of the driver. */
enum {
	IDE_DRV_ERROR_GENERAL	= 101,
	IDE_DRV_ERROR_FILEMARK	= 102,
	IDE_DRV_ERROR_EOD	= 103,
};

/*
 * Definitions for accessing IDE controller registers
 */
#define IDE_NR_PORTS		(10)

struct ide_io_ports {
	unsigned long	data_addr;

	union {
		unsigned long error_addr;	/*   read:  error */
		unsigned long feature_addr;	/*  write: feature */
	};

	unsigned long	nsect_addr;
	unsigned long	lbal_addr;
	unsigned long	lbam_addr;
	unsigned long	lbah_addr;

	unsigned long	device_addr;

	union {
		unsigned long status_addr;	/*  read: status  */
		unsigned long command_addr;	/* write: command */
	};

	unsigned long	ctl_addr;

	unsigned long	irq_addr;
};