ide: remove the legacy ide driver

The legay ide driver has been replace with libata starting in 2003 and has
been scheduled for removal for a while.  Finally kill it off so that we
can start cleaning up various bits of cruft it forced on the block layer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 0 insertions, 1623 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
deleted file mode 100644
index 2c300689a51a..000000000000
--- a/include/linux/ide.h
+++ /dev/null
@@ -1,1623 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#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/blk-mq.h>
-#include <linux/proc_fs.h>
-#include <linux/interrupt.h>
-#include <linux/bitops.h>
-#include <linux/bio.h>
-#include <linux/pci.h>
-#include <linux/completion.h>
-#include <linux/pm.h>
-#include <linux/mutex.h>
-/* for request_sense */
-#include <linux/cdrom.h>
-#include <scsi/scsi_cmnd.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-
-/*
- * Probably not wise to fiddle with these
- */
-#define SUPPORT_VLB_SYNC 1
-#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 */
-
-struct device;
-
-/* values for ide_request.type */
-enum ata_priv_type {
-	ATA_PRIV_MISC,
-	ATA_PRIV_TASKFILE,
-	ATA_PRIV_PC,
-	ATA_PRIV_SENSE,		/* sense request */
-	ATA_PRIV_PM_SUSPEND,	/* suspend request */
-	ATA_PRIV_PM_RESUME,	/* resume request */
-};
-
-struct ide_request {
-	struct scsi_request sreq;
-	u8 sense[SCSI_SENSE_BUFFERSIZE];
-	u8 type;
-	void *special;
-};
-
-static inline struct ide_request *ide_req(struct request *rq)
-{
-	return blk_mq_rq_to_pdu(rq);
-}
-
-static inline bool ata_misc_request(struct request *rq)
-{
-	return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_MISC;
-}
-
-static inline bool ata_taskfile_request(struct request *rq)
-{
-	return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_TASKFILE;
-}
-
-static inline bool ata_pc_request(struct request *rq)
-{
-	return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_PC;
-}
-
-static inline bool ata_sense_request(struct request *rq)
-{
-	return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_SENSE;
-}
-
-static inline bool ata_pm_request(struct request *rq)
-{
-	return blk_rq_is_private(rq) &&
-		(ide_req(rq)->type == ATA_PRIV_PM_SUSPEND ||
-		 ide_req(rq)->type == ATA_PRIV_PM_RESUME);
-}
-
-/* Error codes returned in result 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;
-};
-
-#define OK_STAT(stat,good,bad)	(((stat)&((good)|(bad)))==(good))
-
-#define BAD_R_STAT	(ATA_BUSY | ATA_ERR)
-#define BAD_W_STAT	(BAD_R_STAT | ATA_DF)
-#define BAD_STAT	(BAD_R_STAT | ATA_DRQ)
-#define DRIVE_READY	(ATA_DRDY | ATA_DSC)
-
-#define BAD_CRC		(ATA_ABORTED | ATA_ICRC)
-
-#define SATA_NR_PORTS		(3)	/* 16 possible ?? */
-
-#define SATA_STATUS_OFFSET	(0)
-#define SATA_ERROR_OFFSET	(1)
-#define SATA_CONTROL_OFFSET	(2)
-
-/*
- * Our Physical Region Descriptor (PRD) table should be large enough
- * to handle the biggest I/O request we are likely to see.  Since requests
- * can have no more than 256 sectors, and since the typical blocksize is
- * two or more sectors, we could get by with a limit of 128 entries here for
- * the usual worst case.  Most requests seem to include some contiguous blocks,
- * further reducing the number of table entries required.
- *
- * The driver reverts to PIO mode for individual requests that exceed
- * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling
- * 100% of all crazy scenarios here is not necessary.
- *
- * As it turns out though, we must allocate a full 4KB page for this,
- * so the two PRD tables (ide0 & ide1) will each get half of that,
- * allowing each to have about 256 entries (8 bytes each) from this.
- */
-#define PRD_BYTES       8
-#define PRD_ENTRIES	256
-
-/*
- * Some more useful definitions
- */
-#define PARTN_BITS	6	/* number of minor dev bits for partitions */
-#define MAX_DRIVES	2	/* per interface; 2 assumed by lots of code */
-
-/*
- * Timeouts for various operations:
- */
-enum {
-	/* spec allows up to 20ms, but CF cards and SSD drives need more */
-	WAIT_DRQ	= 1 * HZ,	/* 1s */
-	/* some laptops are very slow */
-	WAIT_READY	= 5 * HZ,	/* 5s */
-	/* should be less than 3ms (?), if all ATAPI CD is closed at boot */
-	WAIT_PIDENTIFY	= 10 * HZ,	/* 10s */
-	/* worst case when spinning up */
-	WAIT_WORSTCASE	= 30 * HZ,	/* 30s */
-	/* maximum wait for an IRQ to happen */
-	WAIT_CMD	= 10 * HZ,	/* 10s */
-	/* Some drives require a longer IRQ timeout. */
-	WAIT_FLOPPY_CMD	= 50 * HZ,	/* 50s */
-	/*
-	 * Some drives (for example, Seagate STT3401A Travan) require a very
-	 * long timeout, because they don't return an interrupt or clear their
-	 * BSY bit until after the command completes (even retension commands).
-	 */
-	WAIT_TAPE_CMD	= 900 * HZ,	/* 900s */
-	/* minimum sleep time */
-	WAIT_MIN_SLEEP	= HZ / 50,	/* 20ms */
-};
-
-/*
- * Op codes for special requests to be handled by ide_special_rq().
- * Values should be in the range of 0x20 to 0x3f.
- */
-#define REQ_DRIVE_RESET		0x20
-#define REQ_DEVSET_EXEC		0x21
-#define REQ_PARK_HEADS		0x22
-#define REQ_UNPARK_HEADS	0x23
-
-/*
- * hwif_chipset_t is used to keep track of the specific hardware
- * chipset used by each IDE interface, if known.
- */
-enum {		ide_unknown,	ide_generic,	ide_pci,
-		ide_cmd640,	ide_dtc2278,	ide_ali14xx,
-		ide_qd65xx,	ide_umc8672,	ide_ht6560b,
-		ide_4drives,	ide_pmac,	ide_acorn,
-		ide_au1xxx,	ide_palm3710
-};
-
-typedef u8 hwif_chipset_t;
-
-/*
- * Structure to hold all information about the location of this port
- */
-struct ide_hw {
-	union {
-		struct ide_io_ports	io_ports;
-		unsigned long		io_ports_array[IDE_NR_PORTS];
-	};
-
-	int		irq;			/* our irq number */
-	struct device	*dev, *parent;
-	unsigned long	config;
-};
-
-static inline void ide_std_init_ports(struct ide_hw *hw,
-				      unsigned long io_addr,
-				      unsigned long ctl_addr)
-{
-	unsigned int i;
-
-	for (i = 0; i <= 7; i++)
-		hw->io_ports_array[i] = io_addr++;
-
-	hw->io_ports.ctl_addr = ctl_addr;
-}
-
-#define MAX_HWIFS	10
-
-/*
- * Now for the data we need to maintain per-drive:  ide_drive_t
- */
-
-#define ide_scsi	0x21
-#define ide_disk	0x20
-#define ide_optical	0x7
-#define ide_cdrom	0x5
-#define ide_tape	0x1
-#define ide_floppy	0x0
-
-/*
- * Special Driver Flags
- */
-enum {
-	IDE_SFLAG_SET_GEOMETRY		= BIT(0),
-	IDE_SFLAG_RECALIBRATE		= BIT(1),
-	IDE_SFLAG_SET_MULTMODE		= BIT(2),
-};
-
-/*
- * Status returned from various ide_ functions
- */
-typedef enum {
-	ide_stopped,	/* no drive operation was started */
-	ide_started,	/* a drive operation was started, handler was set */
-} ide_startstop_t;
-
-enum {
-	IDE_VALID_ERROR 		= BIT(1),
-	IDE_VALID_FEATURE		= IDE_VALID_ERROR,
-	IDE_VALID_NSECT 		= BIT(2),
-	IDE_VALID_LBAL			= BIT(3),
-	IDE_VALID_LBAM			= BIT(4),
-	IDE_VALID_LBAH			= BIT(5),
-	IDE_VALID_DEVICE		= BIT(6),
-	IDE_VALID_LBA			= IDE_VALID_LBAL |
-					  IDE_VALID_LBAM |
-					  IDE_VALID_LBAH,
-	IDE_VALID_OUT_TF		= IDE_VALID_FEATURE |
-					  IDE_VALID_NSECT |
-					  IDE_VALID_LBA,
-	IDE_VALID_IN_TF 		= IDE_VALID_NSECT |
-					  IDE_VALID_LBA,
-	IDE_VALID_OUT_HOB		= IDE_VALID_OUT_TF,
-	IDE_VALID_IN_HOB		= IDE_VALID_ERROR |
-					  IDE_VALID_NSECT |
-					  IDE_VALID_LBA,
-};
-
-enum {
-	IDE_TFLAG_LBA48			= BIT(0),
-	IDE_TFLAG_WRITE			= BIT(1),
-	IDE_TFLAG_CUSTOM_HANDLER	= BIT(2),
-	IDE_TFLAG_DMA_PIO_FALLBACK	= BIT(3),
-	/* force 16-bit I/O operations */
-	IDE_TFLAG_IO_16BIT		= BIT(4),
-	/* struct ide_cmd was allocated using kmalloc() */
-	IDE_TFLAG_DYN			= BIT(5),
-	IDE_TFLAG_FS			= BIT(6),
-	IDE_TFLAG_MULTI_PIO		= BIT(7),
-	IDE_TFLAG_SET_XFER		= BIT(8),
-};
-
-enum {
-	IDE_FTFLAG_FLAGGED		= BIT(0),
-	IDE_FTFLAG_SET_IN_FLAGS		= BIT(1),
-	IDE_FTFLAG_OUT_DATA		= BIT(2),
-	IDE_FTFLAG_IN_DATA		= BIT(3),
-};
-
-struct ide_taskfile {
-	u8	data;		/* 0: data byte (for TASKFILE ioctl) */
-	union {			/* 1: */
-		u8 error;	/*  read: error */
-		u8 feature;	/* write: feature */
-	};
-	u8	nsect;		/* 2: number of sectors */
-	u8	lbal;		/* 3: LBA low */
-	u8	lbam;		/* 4: LBA mid */
-	u8	lbah;		/* 5: LBA high */
-	u8	device;		/* 6: device select */
-	union {			/* 7: */
-		u8 status;	/*  read: status */
-		u8 command;	/* write: command */
-	};
-};
-
-struct ide_cmd {
-	struct ide_taskfile	tf;
-	struct ide_taskfile	hob;
-	struct {
-		struct {
-			u8		tf;
-			u8		hob;
-		} out, in;
-	} valid;
-
-	u16			tf_flags;
-	u8			ftf_flags;	/* for TASKFILE ioctl */
-	int			protocol;
-
-	int			sg_nents;	  /* number of sg entries */
-	int			orig_sg_nents;
-	int			sg_dma_direction; /* DMA transfer direction */
-
-	unsigned int		nbytes;
-	unsigned int		nleft;
-	unsigned int		last_xfer_len;
-
-	struct scatterlist	*cursg;
-	unsigned int		cursg_ofs;
-
-	struct request		*rq;		/* copy of request */
-};
-
-/* ATAPI packet command flags */
-enum {
-	/* set when an error is considered normal - no retry (ide-tape) */
-	PC_FLAG_ABORT			= BIT(0),
-	PC_FLAG_SUPPRESS_ERROR		= BIT(1),
-	PC_FLAG_WAIT_FOR_DSC		= BIT(2),
-	PC_FLAG_DMA_OK			= BIT(3),
-	PC_FLAG_DMA_IN_PROGRESS		= BIT(4),
-	PC_FLAG_DMA_ERROR		= BIT(5),
-	PC_FLAG_WRITING			= BIT(6),
-};
-
-#define ATAPI_WAIT_PC		(60 * HZ)
-
-struct ide_atapi_pc {
-	/* actual packet bytes */
-	u8 c[12];
-	/* incremented on each retry */
-	int retries;
-	int error;
-
-	/* bytes to transfer */
-	int req_xfer;
-
-	/* the corresponding request */
-	struct request *rq;
-
-	unsigned long flags;
-
-	/*
-	 * those are more or less driver-specific and some of them are subject
-	 * to change/removal later.
-	 */
-	unsigned long timeout;
-};
-
-struct ide_devset;
-struct ide_driver;
-
-#ifdef CONFIG_BLK_DEV_IDEACPI
-struct ide_acpi_drive_link;
-struct ide_acpi_hwif_link;
-#endif
-
-struct ide_drive_s;
-
-struct ide_disk_ops {
-	int		(*check)(struct ide_drive_s *, const char *);
-	int		(*get_capacity)(struct ide_drive_s *);
-	void		(*unlock_native_capacity)(struct ide_drive_s *);
-	void		(*setup)(struct ide_drive_s *);
-	void		(*flush)(struct ide_drive_s *);
-	int		(*init_media)(struct ide_drive_s *, struct gendisk *);
-	int		(*set_doorlock)(struct ide_drive_s *, struct gendisk *,
-					int);
-	ide_startstop_t	(*do_request)(struct ide_drive_s *, struct request *,
-				      sector_t);
-	int		(*ioctl)(struct ide_drive_s *, struct block_device *,
-				 fmode_t, unsigned int, unsigned long);
-	int		(*compat_ioctl)(struct ide_drive_s *, struct block_device *,
-					fmode_t, unsigned int, unsigned long);
-};
-
-/* ATAPI device flags */
-enum {
-	IDE_AFLAG_DRQ_INTERRUPT		= BIT(0),
-
-	/* ide-cd */
-	/* Drive cannot eject the disc. */
-	IDE_AFLAG_NO_EJECT		= BIT(1),
-	/* Drive is a pre ATAPI 1.2 drive. */
-	IDE_AFLAG_PRE_ATAPI12		= BIT(2),
-	/* TOC addresses are in BCD. */
-	IDE_AFLAG_TOCADDR_AS_BCD	= BIT(3),
-	/* TOC track numbers are in BCD. */
-	IDE_AFLAG_TOCTRACKS_AS_BCD	= BIT(4),
-	/* Saved TOC information is current. */
-	IDE_AFLAG_TOC_VALID		= BIT(6),
-	/* We think that the drive door is locked. */
-	IDE_AFLAG_DOOR_LOCKED		= BIT(7),
-	/* SET_CD_SPEED command is unsupported. */
-	IDE_AFLAG_NO_SPEED_SELECT	= BIT(8),
-	IDE_AFLAG_VERTOS_300_SSD	= BIT(9),
-	IDE_AFLAG_VERTOS_600_ESD	= BIT(10),
-	IDE_AFLAG_SANYO_3CD		= BIT(11),
-	IDE_AFLAG_FULL_CAPS_PAGE	= BIT(12),
-	IDE_AFLAG_PLAY_AUDIO_OK		= BIT(13),
-	IDE_AFLAG_LE_SPEED_FIELDS	= BIT(14),
-
-	/* ide-floppy */
-	/* Avoid commands not supported in Clik drive */
-	IDE_AFLAG_CLIK_DRIVE		= BIT(15),
-	/* Requires BH algorithm for packets */
-	IDE_AFLAG_ZIP_DRIVE		= BIT(16),
-	/* Supports format progress report */
-	IDE_AFLAG_SRFP			= BIT(17),
-
-	/* ide-tape */
-	IDE_AFLAG_IGNORE_DSC		= BIT(18),
-	/* 0 When the tape position is unknown */
-	IDE_AFLAG_ADDRESS_VALID		= BIT(19),
-	/* Device already opened */
-	IDE_AFLAG_BUSY			= BIT(20),
-	/* Attempt to auto-detect the current user block size */
-	IDE_AFLAG_DETECT_BS		= BIT(21),
-	/* Currently on a filemark */
-	IDE_AFLAG_FILEMARK		= BIT(22),
-	/* 0 = no tape is loaded, so we don't rewind after ejecting */
-	IDE_AFLAG_MEDIUM_PRESENT	= BIT(23),
-
-	IDE_AFLAG_NO_AUTOCLOSE		= BIT(24),
-};
-
-/* device flags */
-enum {
-	/* restore settings after device reset */
-	IDE_DFLAG_KEEP_SETTINGS		= BIT(0),
-	/* device is using DMA for read/write */
-	IDE_DFLAG_USING_DMA		= BIT(1),
-	/* okay to unmask other IRQs */
-	IDE_DFLAG_UNMASK		= BIT(2),
-	/* don't attempt flushes */
-	IDE_DFLAG_NOFLUSH		= BIT(3),
-	/* DSC overlap */
-	IDE_DFLAG_DSC_OVERLAP		= BIT(4),
-	/* give potential excess bandwidth */
-	IDE_DFLAG_NICE1			= BIT(5),
-	/* device is physically present */
-	IDE_DFLAG_PRESENT		= BIT(6),
-	/* disable Host Protected Area */
-	IDE_DFLAG_NOHPA			= BIT(7),
-	/* id read from device (synthetic if not set) */
-	IDE_DFLAG_ID_READ		= BIT(8),
-	IDE_DFLAG_NOPROBE		= BIT(9),
-	/* need to do check_media_change() */
-	IDE_DFLAG_REMOVABLE		= BIT(10),
-	IDE_DFLAG_FORCED_GEOM		= BIT(12),
-	/* disallow setting unmask bit */
-	IDE_DFLAG_NO_UNMASK		= BIT(13),
-	/* disallow enabling 32-bit I/O */
-	IDE_DFLAG_NO_IO_32BIT		= BIT(14),
-	/* for removable only: door lock/unlock works */
-	IDE_DFLAG_DOORLOCKING		= BIT(15),
-	/* disallow DMA */
-	IDE_DFLAG_NODMA			= BIT(16),
-	/* powermanagement told us not to do anything, so sleep nicely */
-	IDE_DFLAG_BLOCKED		= BIT(17),
-	/* sleeping & sleep field valid */
-	IDE_DFLAG_SLEEPING		= BIT(18),
-	IDE_DFLAG_POST_RESET		= BIT(19),
-	IDE_DFLAG_UDMA33_WARNED		= BIT(20),
-	IDE_DFLAG_LBA48			= BIT(21),
-	/* status of write cache */
-	IDE_DFLAG_WCACHE		= BIT(22),
-	/* used for ignoring ATA_DF */
-	IDE_DFLAG_NOWERR		= BIT(23),
-	/* retrying in PIO */
-	IDE_DFLAG_DMA_PIO_RETRY		= BIT(24),
-	IDE_DFLAG_LBA			= BIT(25),
-	/* don't unload heads */
-	IDE_DFLAG_NO_UNLOAD		= BIT(26),
-	/* heads unloaded, please don't reset port */
-	IDE_DFLAG_PARKED		= BIT(27),
-	IDE_DFLAG_MEDIA_CHANGED		= BIT(28),
-	/* write protect */
-	IDE_DFLAG_WP			= BIT(29),
-	IDE_DFLAG_FORMAT_IN_PROGRESS	= BIT(30),
-	IDE_DFLAG_NIEN_QUIRK		= BIT(31),
-};
-
-struct ide_drive_s {
-	char		name[4];	/* drive name, such as "hda" */
-        char            driver_req[10];	/* requests specific driver */
-
-	struct request_queue	*queue;	/* request queue */
-
-	bool (*prep_rq)(struct ide_drive_s *, struct request *);
-
-	struct blk_mq_tag_set	tag_set;
-
-	struct request		*rq;	/* current request */
-	void		*driver_data;	/* extra driver data */
-	u16			*id;	/* identification info */
-#ifdef CONFIG_IDE_PROC_FS
-	struct proc_dir_entry *proc;	/* /proc/ide/ directory entry */
-	const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */
-#endif
-	struct hwif_s		*hwif;	/* actually (ide_hwif_t *) */
-
-	const struct ide_disk_ops *disk_ops;
-
-	unsigned long dev_flags;
-
-	unsigned long sleep;		/* sleep until this time */
-	unsigned long timeout;		/* max time to wait for irq */
-
-	u8	special_flags;		/* special action flags */
-
-	u8	select;			/* basic drive/head select reg value */
-	u8	retry_pio;		/* retrying dma capable host in pio */
-	u8	waiting_for_dma;	/* dma currently in progress */
-	u8	dma;			/* atapi dma flag */
-
-        u8	init_speed;	/* transfer rate set at boot */
-        u8	current_speed;	/* current transfer rate set */
-	u8	desired_speed;	/* desired transfer rate set */
-	u8	pio_mode;	/* for ->set_pio_mode _only_ */
-	u8	dma_mode;	/* for ->set_dma_mode _only_ */
-	u8	dn;		/* now wide spread use */
-	u8	acoustic;	/* acoustic management */
-	u8	media;		/* disk, cdrom, tape, floppy, ... */
-	u8	ready_stat;	/* min status value for drive ready */
-	u8	mult_count;	/* current multiple sector setting */
-	u8	mult_req;	/* requested multiple sector setting */
-	u8	io_32bit;	/* 0=16-bit, 1=32-bit, 2/3=32bit+sync */
-	u8	bad_wstat;	/* used for ignoring ATA_DF */
-	u8	head;		/* "real" number of heads */
-	u8	sect;		/* "real" sectors per track */
-	u8	bios_head;	/* BIOS/fdisk/LILO number of heads */
-	u8	bios_sect;	/* BIOS/fdisk/LILO sectors per track */
-
-	/* delay this long before sending packet command */
-	u8 pc_delay;
-
-	unsigned int	bios_cyl;	/* BIOS/fdisk/LILO number of cyls */
-	unsigned int	cyl;		/* "real" number of cyls */
-	void		*drive_data;	/* used by set_pio_mode/dev_select() */
-	unsigned int	failures;	/* current failure count */
-	unsigned int	max_failures;	/* maximum allowed failure count */
-	u64		probed_capacity;/* initial/native media capacity */
-	u64		capacity64;	/* total number of sectors */
-
-	int		lun;		/* logical unit */
-	int		crc_count;	/* crc counter to reduce drive speed */
-
-	unsigned long	debug_mask;	/* debugging levels switch */
-
-#ifdef CONFIG_BLK_DEV_IDEACPI
-	struct ide_acpi_drive_link *acpidata;
-#endif
-	struct list_head list;
-	struct device	gendev;
-	struct completion gendev_rel_comp;	/* to deal with device release() */
-
-	/* current packet command */
-	struct ide_atapi_pc *pc;
-
-	/* last failed packet command */
-	struct ide_atapi_pc *failed_pc;
-
-	/* callback for packet commands */
-	int  (*pc_callback)(struct ide_drive_s *, int);
-
-	ide_startstop_t (*irq_handler)(struct ide_drive_s *);
-
-	unsigned long atapi_flags;
-
-	struct ide_atapi_pc request_sense_pc;
-
-	/* current sense rq and buffer */
-	bool sense_rq_armed;
-	bool sense_rq_active;
-	struct request *sense_rq;
-	struct request_sense sense_data;
-
-	/* async sense insertion */
-	struct work_struct rq_work;
-	struct list_head rq_list;
-};
-
-typedef struct ide_drive_s ide_drive_t;
-
-#define to_ide_device(dev)		container_of(dev, ide_drive_t, gendev)
-
-#define to_ide_drv(obj, cont_type)	\
-	container_of(obj, struct cont_type, dev)
-
-#define ide_drv_g(disk, cont_type)	\
-	container_of((disk)->private_data, struct cont_type, driver)
-
-struct ide_port_info;
-
-struct ide_tp_ops {
-	void	(*exec_command)(struct hwif_s *, u8);
-	u8	(*read_status)(struct hwif_s *);
-	u8	(*read_altstatus)(struct hwif_s *);
-	void	(*write_devctl)(struct hwif_s *, u8);
-
-	void	(*dev_select)(ide_drive_t *);
-	void	(*tf_load)(ide_drive_t *, struct ide_taskfile *, u8);
-	void	(*tf_read)(ide_drive_t *, struct ide_taskfile *, u8);
-
-	void	(*input_data)(ide_drive_t *, struct ide_cmd *,
-			      void *, unsigned int);
-	void	(*output_data)(ide_drive_t *, struct ide_cmd *,
-			       void *, unsigned int);
-};
-
-extern const struct ide_tp_ops default_tp_ops;
-
-/**
- * struct ide_port_ops - IDE port operations
- *
- * @init_dev:		host specific initialization of a device
- * @set_pio_mode:	routine to program host for PIO mode
- * @set_dma_mode:	routine to program host for DMA mode
- * @reset_poll:		chipset polling based on hba specifics
- * @pre_reset:		chipset specific changes to default for device-hba resets
- * @resetproc:		routine to reset controller after a disk reset
- * @maskproc:		special host masking for drive selection
- * @quirkproc:		check host's drive quirk list
- * @clear_irq:		clear IRQ
- *
- * @mdma_filter:	filter MDMA modes
- * @udma_filter:	filter UDMA modes
- *
- * @cable_detect:	detect cable type
- */
-struct ide_port_ops {
-	void	(*init_dev)(ide_drive_t *);
-	void	(*set_pio_mode)(struct hwif_s *, ide_drive_t *);
-	void	(*set_dma_mode)(struct hwif_s *, ide_drive_t *);
-	blk_status_t (*reset_poll)(ide_drive_t *);
-	void	(*pre_reset)(ide_drive_t *);
-	void	(*resetproc)(ide_drive_t *);
-	void	(*maskproc)(ide_drive_t *, int);
-	void	(*quirkproc)(ide_drive_t *);
-	void	(*clear_irq)(ide_drive_t *);
-	int	(*test_irq)(struct hwif_s *);
-
-	u8	(*mdma_filter)(ide_drive_t *);
-	u8	(*udma_filter)(ide_drive_t *);
-
-	u8	(*cable_detect)(struct hwif_s *);
-};
-
-struct ide_dma_ops {
-	void	(*dma_host_set)(struct ide_drive_s *, int);
-	int	(*dma_setup)(struct ide_drive_s *, struct ide_cmd *);
-	void	(*dma_start)(struct ide_drive_s *);
-	int	(*dma_end)(struct ide_drive_s *);
-	int	(*dma_test_irq)(struct ide_drive_s *);
-	void	(*dma_lost_irq)(struct ide_drive_s *);
-	/* below ones are optional */
-	int	(*dma_check)(struct ide_drive_s *, struct ide_cmd *);
-	int	(*dma_timer_expiry)(struct ide_drive_s *);
-	void	(*dma_clear)(struct ide_drive_s *);
-	/*
-	 * The following method is optional and only required to be
-	 * implemented for the SFF-8038i compatible controllers.
-	 */
-	u8	(*dma_sff_read_status)(struct hwif_s *);
-};
-
-enum {
-	IDE_PFLAG_PROBING		= BIT(0),
-};
-
-struct ide_host;
-
-typedef struct hwif_s {
-	struct hwif_s *mate;		/* other hwif from same PCI chip */
-	struct proc_dir_entry *proc;	/* /proc/ide/ directory entry */
-
-	struct ide_host *host;
-
-	char name[6];			/* name of interface, eg. "ide0" */
-
-	struct ide_io_ports	io_ports;
-
-	unsigned long	sata_scr[SATA_NR_PORTS];
-
-	ide_drive_t	*devices[MAX_DRIVES + 1];
-
-	unsigned long	port_flags;
-
-	u8 major;	/* our major number */
-	u8 index;	/* 0 for ide0; 1 for ide1; ... */
-	u8 channel;	/* for dual-port chips: 0=primary, 1=secondary */
-
-	u32 host_flags;
-
-	u8 pio_mask;
-
-	u8 ultra_mask;
-	u8 mwdma_mask;
-	u8 swdma_mask;
-
-	u8 cbl;		/* cable type */
-
-	hwif_chipset_t chipset;	/* sub-module for tuning.. */
-
-	struct device *dev;
-
-	void (*rw_disk)(ide_drive_t *, struct request *);
-
-	const struct ide_tp_ops		*tp_ops;
-	const struct ide_port_ops	*port_ops;
-	const struct ide_dma_ops	*dma_ops;
-
-	/* dma physical region descriptor table (cpu view) */
-	unsigned int	*dmatable_cpu;
-	/* dma physical region descriptor table (dma view) */
-	dma_addr_t	dmatable_dma;
-
-	/* maximum number of PRD table entries */
-	int prd_max_nents;
-	/* PRD entry size in bytes */
-	int prd_ent_size;
-
-	/* Scatter-gather list used to build the above */
-	struct scatterlist *sg_table;
-	int sg_max_nents;		/* Maximum number of entries in it */
-
-	struct ide_cmd cmd;		/* current command */
-
-	int		rqsize;		/* max sectors per request */
-	int		irq;		/* our irq number */
-
-	unsigned long	dma_base;	/* base addr for dma ports */
-
-	unsigned long	config_data;	/* for use by chipset-specific code */
-	unsigned long	select_data;	/* for use by chipset-specific code */
-
-	unsigned long	extra_base;	/* extra addr for dma ports */
-	unsigned	extra_ports;	/* number of extra dma ports */
-
-	unsigned	present    : 1;	/* this interface exists */
-	unsigned	busy	   : 1; /* serializes devices on a port */
-
-	struct device		gendev;
-	struct device		*portdev;
-
-	struct completion gendev_rel_comp; /* To deal with device release() */
-
-	void		*hwif_data;	/* extra hwif data */
-
-#ifdef CONFIG_BLK_DEV_IDEACPI
-	struct ide_acpi_hwif_link *acpidata;
-#endif
-
-	/* IRQ handler, if active */
-	ide_startstop_t	(*handler)(ide_drive_t *);
-
-	/* BOOL: polling active & poll_timeout field valid */
-	unsigned int polling : 1;
-
-	/* current drive */
-	ide_drive_t *cur_dev;
-
-	/* current request */
-	struct request *rq;
-
-	/* failsafe timer */
-	struct timer_list timer;
-	/* timeout value during long polls */
-	unsigned long poll_timeout;
-	/* queried upon timeouts */
-	int (*expiry)(ide_drive_t *);
-
-	int req_gen;
-	int req_gen_timer;
-
-	spinlock_t lock;
-} ____cacheline_internodealigned_in_smp ide_hwif_t;
-
-#define MAX_HOST_PORTS 4
-
-struct ide_host {
-	ide_hwif_t	*ports[MAX_HOST_PORTS + 1];
-	unsigned int	n_ports;
-	struct device	*dev[2];
-
-	int		(*init_chipset)(struct pci_dev *);
-
-	void		(*get_lock)(irq_handler_t, void *);
-	void		(*release_lock)(void);
-
-	irq_handler_t	irq_handler;
-
-	unsigned long	host_flags;
-
-	int		irq_flags;
-
-	void		*host_priv;
-	ide_hwif_t	*cur_port;	/* for hosts requiring serialization */
-
-	/* used for hosts requiring serialization */
-	volatile unsigned long	host_busy;
-};
-
-#define IDE_HOST_BUSY 0
-
-/*
- *  internal ide interrupt handler type
- */
-typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
-typedef int (ide_expiry_t)(ide_drive_t *);
-
-/* used by ide-cd, ide-floppy, etc. */
-typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned);
-
-extern struct mutex ide_setting_mtx;
-
-/*
- * configurable drive settings
- */
-
-#define DS_SYNC	BIT(0)
-
-struct ide_devset {
-	int		(*get)(ide_drive_t *);
-	int		(*set)(ide_drive_t *, int);
-	unsigned int	flags;
-};
-
-#define __DEVSET(_flags, _get, _set) { \
-	.flags	= _flags, \
-	.get	= _get,	\
-	.set	= _set,	\
-}
-
-#define ide_devset_get(name, field) \
-static int get_##name(ide_drive_t *drive) \
-{ \
-	return drive->field; \
-}
-
-#define ide_devset_set(name, field) \
-static int set_##name(ide_drive_t *drive, int arg) \
-{ \
-	drive->field = arg; \
-	return 0; \
-}
-
-#define ide_devset_get_flag(name, flag) \
-static int get_##name(ide_drive_t *drive) \
-{ \
-	return !!(drive->dev_flags & flag); \
-}
-
-#define ide_devset_set_flag(name, flag) \
-static int set_##name(ide_drive_t *drive, int arg) \
-{ \
-	if (arg) \
-		drive->dev_flags |= flag; \
-	else \
-		drive->dev_flags &= ~flag; \
-	return 0; \
-}
-
-#define __IDE_DEVSET(_name, _flags, _get, _set) \
-const struct ide_devset ide_devset_##_name = \
-	__DEVSET(_flags, _get, _set)
-
-#define IDE_DEVSET(_name, _flags, _get, _set) \
-static __IDE_DEVSET(_name, _flags, _get, _set)
-
-#define ide_devset_rw(_name, _func) \
-IDE_DEVSET(_name, 0, get_##_func, set_##_func)
-
-#define ide_devset_w(_name, _func) \
-IDE_DEVSET(_name, 0, NULL, set_##_func)
-
-#define ide_ext_devset_rw(_name, _func) \
-__IDE_DEVSET(_name, 0, get_##_func, set_##_func)
-
-#define ide_ext_devset_rw_sync(_name, _func) \
-__IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func)
-
-#define ide_decl_devset(_name) \
-extern const struct ide_devset ide_devset_##_name
-
-ide_decl_devset(io_32bit);
-ide_decl_devset(keepsettings);
-ide_decl_devset(pio_mode);
-ide_decl_devset(unmaskirq);
-ide_decl_devset(using_dma);
-
-#ifdef CONFIG_IDE_PROC_FS
-/*
- * /proc/ide interface
- */
-
-#define ide_devset_rw_field(_name, _field) \
-ide_devset_get(_name, _field); \
-ide_devset_set(_name, _field); \
-IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
-
-#define ide_devset_ro_field(_name, _field) \
-ide_devset_get(_name, _field); \
-IDE_DEVSET(_name, 0, get_##_name, NULL)
-
-#define ide_devset_rw_flag(_name, _field) \
-ide_devset_get_flag(_name, _field); \
-ide_devset_set_flag(_name, _field); \
-IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
-
-struct ide_proc_devset {
-	const char		*name;
-	const struct ide_devset	*setting;
-	int			min, max;
-	int			(*mulf)(ide_drive_t *);
-	int			(*divf)(ide_drive_t *);
-};
-
-#define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \
-	.name = __stringify(_name), \
-	.setting = &ide_devset_##_name, \
-	.min = _min, \
-	.max = _max, \
-	.mulf = _mulf, \
-	.divf = _divf, \
-}
-
-#define IDE_PROC_DEVSET(_name, _min, _max) \
-__IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL)
-
-typedef struct {
-	const char	*name;
-	umode_t		mode;
-	int (*show)(struct seq_file *, void *);
-} ide_proc_entry_t;
-
-void proc_ide_create(void);
-void proc_ide_destroy(void);
-void ide_proc_register_port(ide_hwif_t *);
-void ide_proc_port_register_devices(ide_hwif_t *);
-void ide_proc_unregister_device(ide_drive_t *);
-void ide_proc_unregister_port(ide_hwif_t *);
-void ide_proc_register_driver(ide_drive_t *, struct ide_driver *);
-void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *);
-
-int ide_capacity_proc_show(struct seq_file *m, void *v);
-int ide_geometry_proc_show(struct seq_file *m, void *v);
-#else
-static inline void proc_ide_create(void) { ; }
-static inline void proc_ide_destroy(void) { ; }
-static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; }
-static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
-static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
-static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
-static inline void ide_proc_register_driver(ide_drive_t *drive,
-					    struct ide_driver *driver) { ; }
-static inline void ide_proc_unregister_driver(ide_drive_t *drive,
-					      struct ide_driver *driver) { ; }
-#endif
-
-enum {
-	/* enter/exit functions */
-	IDE_DBG_FUNC =			BIT(0),
-	/* sense key/asc handling */
-	IDE_DBG_SENSE =			BIT(1),
-	/* packet commands handling */
-	IDE_DBG_PC =			BIT(2),
-	/* request handling */
-	IDE_DBG_RQ =			BIT(3),
-	/* driver probing/setup */
-	IDE_DBG_PROBE =			BIT(4),
-};
-
-/* DRV_NAME has to be defined in the driver before using the macro below */
-#define __ide_debug_log(lvl, fmt, args...)				\
-{									\
-	if (unlikely(drive->debug_mask & lvl))				\
-		printk(KERN_INFO DRV_NAME ": %s: " fmt "\n",		\
-					  __func__, ## args);		\
-}
-
-/*
- * Power Management state machine (rq->pm->pm_step).
- *
- * For each step, the core calls ide_start_power_step() first.
- * This can return:
- *	- ide_stopped :	In this case, the core calls us back again unless
- *			step have been set to ide_power_state_completed.
- *	- ide_started :	In this case, the channel is left busy until an
- *			async event (interrupt) occurs.
- * Typically, ide_start_power_step() will issue a taskfile request with
- * do_rw_taskfile().
- *
- * Upon reception of the interrupt, the core will call ide_complete_power_step()
- * with the error code if any. This routine should update the step value
- * and return. It should not start a new request. The core will call
- * ide_start_power_step() for the new step value, unless step have been
- * set to IDE_PM_COMPLETED.
- */
-enum {
-	IDE_PM_START_SUSPEND,
-	IDE_PM_FLUSH_CACHE	= IDE_PM_START_SUSPEND,
-	IDE_PM_STANDBY,
-
-	IDE_PM_START_RESUME,
-	IDE_PM_RESTORE_PIO	= IDE_PM_START_RESUME,
-	IDE_PM_IDLE,
-	IDE_PM_RESTORE_DMA,
-
-	IDE_PM_COMPLETED,
-};
-
-int generic_ide_suspend(struct device *, pm_message_t);
-int generic_ide_resume(struct device *);
-
-void ide_complete_power_step(ide_drive_t *, struct request *);
-ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *);
-void ide_complete_pm_rq(ide_drive_t *, struct request *);
-void ide_check_pm_state(ide_drive_t *, struct request *);
-
-/*
- * Subdrivers support.
- *
- * The gendriver.owner field should be set to the module owner of this driver.
- * The gendriver.name field should be set to the name of this driver
- */
-struct ide_driver {
-	const char			*version;
-	ide_startstop_t	(*do_request)(ide_drive_t *, struct request *, sector_t);
-	struct device_driver	gen_driver;
-	int		(*probe)(ide_drive_t *);
-	void		(*remove)(ide_drive_t *);
-	void		(*resume)(ide_drive_t *);
-	void		(*shutdown)(ide_drive_t *);
-#ifdef CONFIG_IDE_PROC_FS
-	ide_proc_entry_t *		(*proc_entries)(ide_drive_t *);
-	const struct ide_proc_devset *	(*proc_devsets)(ide_drive_t *);
-#endif
-};
-
-#define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver)
-
-int ide_device_get(ide_drive_t *);
-void ide_device_put(ide_drive_t *);
-
-struct ide_ioctl_devset {
-	unsigned int	get_ioctl;
-	unsigned int	set_ioctl;
-	const struct ide_devset *setting;
-};
-
-int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int,
-		      unsigned long, const struct ide_ioctl_devset *);
-
-int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long);
-
-extern int ide_vlb_clk;
-extern int ide_pci_clk;
-
-int ide_end_rq(ide_drive_t *, struct request *, blk_status_t, unsigned int);
-void ide_kill_rq(ide_drive_t *, struct request *);
-void ide_insert_request_head(ide_drive_t *, struct request *);
-
-void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
-void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
-
-void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *,
-			 unsigned int);
-
-void ide_pad_transfer(ide_drive_t *, int, int);
-
-ide_startstop_t ide_error(ide_drive_t *, const char *, u8);
-
-void ide_fix_driveid(u16 *);
-
-extern void ide_fixstring(u8 *, const int, const int);
-
-int ide_busy_sleep(ide_drive_t *, unsigned long, int);
-
-int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long, u8 *);
-int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
-
-ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *);
-ide_startstop_t ide_do_devset(ide_drive_t *, struct request *);
-
-extern ide_startstop_t ide_do_reset (ide_drive_t *);
-
-extern int ide_devset_execute(ide_drive_t *drive,
-			      const struct ide_devset *setting, int arg);
-
-void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
-int ide_complete_rq(ide_drive_t *, blk_status_t, unsigned int);
-
-void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd);
-void ide_tf_dump(const char *, struct ide_cmd *);
-
-void ide_exec_command(ide_hwif_t *, u8);
-u8 ide_read_status(ide_hwif_t *);
-u8 ide_read_altstatus(ide_hwif_t *);
-void ide_write_devctl(ide_hwif_t *, u8);
-
-void ide_dev_select(ide_drive_t *);
-void ide_tf_load(ide_drive_t *, struct ide_taskfile *, u8);
-void ide_tf_read(ide_drive_t *, struct ide_taskfile *, u8);
-
-void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
-void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
-
-void SELECT_MASK(ide_drive_t *, int);
-
-u8 ide_read_error(ide_drive_t *);
-void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *);
-
-int ide_check_ireason(ide_drive_t *, struct request *, int, int, int);
-
-int ide_check_atapi_device(ide_drive_t *, const char *);
-
-void ide_init_pc(struct ide_atapi_pc *);
-
-/* Disk head parking */
-extern wait_queue_head_t ide_park_wq;
-ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
-		      char *buf);
-ssize_t ide_park_store(struct device *dev, struct device_attribute *attr,
-		       const char *buf, size_t len);
-
-/*
- * Special requests for ide-tape block device strategy routine.
- *
- * In order to service a character device command, we add special requests to
- * the tail of our block device request queue and wait for their completion.
- */
-enum {
-	REQ_IDETAPE_PC1		= BIT(0), /* packet command (first stage) */
-	REQ_IDETAPE_PC2		= BIT(1), /* packet command (second stage) */
-	REQ_IDETAPE_READ	= BIT(2),
-	REQ_IDETAPE_WRITE	= BIT(3),
-};
-
-int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *,
-		      void *, unsigned int);
-
-int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *);
-int ide_do_start_stop(ide_drive_t *, struct gendisk *, int);
-int ide_set_media_lock(ide_drive_t *, struct gendisk *, int);
-void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *);
-void ide_retry_pc(ide_drive_t *drive);
-
-void ide_prep_sense(ide_drive_t *drive, struct request *rq);
-int ide_queue_sense_rq(ide_drive_t *drive, void *special);
-
-int ide_cd_expiry(ide_drive_t *);
-
-int ide_cd_get_xferlen(struct request *);
-
-ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_cmd *);
-
-ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
-
-void ide_pio_bytes(ide_drive_t *, struct ide_cmd *, unsigned int, unsigned int);
-
-void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8);
-
-int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16);
-int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *);
-
-int ide_taskfile_ioctl(ide_drive_t *, unsigned long);
-
-int ide_dev_read_id(ide_drive_t *, u8, u16 *, int);
-
-extern int ide_driveid_update(ide_drive_t *);
-extern int ide_config_drive_speed(ide_drive_t *, u8);
-extern u8 eighty_ninty_three (ide_drive_t *);
-extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *);
-
-extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
-
-extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
-
-extern void ide_timer_expiry(struct timer_list *t);
-extern irqreturn_t ide_intr(int irq, void *dev_id);
-extern blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *, const struct blk_mq_queue_data *);
-extern blk_status_t ide_issue_rq(ide_drive_t *, struct request *, bool);
-extern void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq);
-
-void ide_init_disk(struct gendisk *, ide_drive_t *);
-
-#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
-extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name);
-#define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
-#else
-#define ide_pci_register_driver(d) pci_register_driver(d)
-#endif
-
-static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev)
-{
-	if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5)
-		return 1;
-	return 0;
-}
-
-void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *,
-			 struct ide_hw *, struct ide_hw **);
-void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
-
-#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
-int ide_pci_set_master(struct pci_dev *, const char *);
-unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *);
-int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *);
-int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *);
-#else
-static inline int ide_hwif_setup_dma(ide_hwif_t *hwif,
-				     const struct ide_port_info *d)
-{
-	return -EINVAL;
-}
-#endif
-
-struct ide_pci_enablebit {
-	u8	reg;	/* byte pci reg holding the enable-bit */
-	u8	mask;	/* mask to isolate the enable-bit */
-	u8	val;	/* value of masked reg when "enabled" */
-};
-
-enum {
-	/* Uses ISA control ports not PCI ones. */
-	IDE_HFLAG_ISA_PORTS		= BIT(0),
-	/* single port device */
-	IDE_HFLAG_SINGLE		= BIT(1),
-	/* don't use legacy PIO blacklist */
-	IDE_HFLAG_PIO_NO_BLACKLIST	= BIT(2),
-	/* set for the second port of QD65xx */
-	IDE_HFLAG_QD_2ND_PORT		= BIT(3),
-	/* use PIO8/9 for prefetch off/on */
-	IDE_HFLAG_ABUSE_PREFETCH	= BIT(4),
-	/* use PIO6/7 for fast-devsel off/on */
-	IDE_HFLAG_ABUSE_FAST_DEVSEL	= BIT(5),
-	/* use 100-102 and 200-202 PIO values to set DMA modes */
-	IDE_HFLAG_ABUSE_DMA_MODES	= BIT(6),
-	/*
-	 * keep DMA setting when programming PIO mode, may be used only
-	 * for hosts which have separate PIO and DMA timings (ie. PMAC)
-	 */
-	IDE_HFLAG_SET_PIO_MODE_KEEP_DMA	= BIT(7),
-	/* program host for the transfer mode after programming device */
-	IDE_HFLAG_POST_SET_MODE		= BIT(8),
-	/* don't program host/device for the transfer mode ("smart" hosts) */
-	IDE_HFLAG_NO_SET_MODE		= BIT(9),
-	/* trust BIOS for programming chipset/device for DMA */
-	IDE_HFLAG_TRUST_BIOS_FOR_DMA	= BIT(10),
-	/* host is CS5510/CS5520 */
-	IDE_HFLAG_CS5520		= BIT(11),
-	/* ATAPI DMA is unsupported */
-	IDE_HFLAG_NO_ATAPI_DMA		= BIT(12),
-	/* set if host is a "non-bootable" controller */
-	IDE_HFLAG_NON_BOOTABLE		= BIT(13),
-	/* host doesn't support DMA */
-	IDE_HFLAG_NO_DMA		= BIT(14),
-	/* check if host is PCI IDE device before allowing DMA */
-	IDE_HFLAG_NO_AUTODMA		= BIT(15),
-	/* host uses MMIO */
-	IDE_HFLAG_MMIO			= BIT(16),
-	/* no LBA48 */
-	IDE_HFLAG_NO_LBA48		= BIT(17),
-	/* no LBA48 DMA */
-	IDE_HFLAG_NO_LBA48_DMA		= BIT(18),
-	/* data FIFO is cleared by an error */
-	IDE_HFLAG_ERROR_STOPS_FIFO	= BIT(19),
-	/* serialize ports */
-	IDE_HFLAG_SERIALIZE		= BIT(20),
-	/* host is DTC2278 */
-	IDE_HFLAG_DTC2278		= BIT(21),
-	/* 4 devices on a single set of I/O ports */
-	IDE_HFLAG_4DRIVES		= BIT(22),
-	/* host is TRM290 */
-	IDE_HFLAG_TRM290		= BIT(23),
-	/* use 32-bit I/O ops */
-	IDE_HFLAG_IO_32BIT		= BIT(24),
-	/* unmask IRQs */
-	IDE_HFLAG_UNMASK_IRQS		= BIT(25),
-	IDE_HFLAG_BROKEN_ALTSTATUS	= BIT(26),
-	/* serialize ports if DMA is possible (for sl82c105) */
-	IDE_HFLAG_SERIALIZE_DMA		= BIT(27),
-	/* force host out of "simplex" mode */
-	IDE_HFLAG_CLEAR_SIMPLEX		= BIT(28),
-	/* DSC overlap is unsupported */
-	IDE_HFLAG_NO_DSC		= BIT(29),
-	/* never use 32-bit I/O ops */
-	IDE_HFLAG_NO_IO_32BIT		= BIT(30),
-	/* never unmask IRQs */
-	IDE_HFLAG_NO_UNMASK_IRQS	= BIT(31),
-};
-
-#ifdef CONFIG_BLK_DEV_OFFBOARD
-# define IDE_HFLAG_OFF_BOARD	0
-#else
-# define IDE_HFLAG_OFF_BOARD	IDE_HFLAG_NON_BOOTABLE
-#endif
-
-struct ide_port_info {
-	char			*name;
-
-	int			(*init_chipset)(struct pci_dev *);
-
-	void			(*get_lock)(irq_handler_t, void *);
-	void			(*release_lock)(void);
-
-	void			(*init_iops)(ide_hwif_t *);
-	void                    (*init_hwif)(ide_hwif_t *);
-	int			(*init_dma)(ide_hwif_t *,
-					    const struct ide_port_info *);
-
-	const struct ide_tp_ops		*tp_ops;
-	const struct ide_port_ops	*port_ops;
-	const struct ide_dma_ops	*dma_ops;
-
-	struct ide_pci_enablebit	enablebits[2];
-
-	hwif_chipset_t		chipset;
-
-	u16			max_sectors;	/* if < than the default one */
-
-	u32			host_flags;
-
-	int			irq_flags;
-
-	u8			pio_mask;
-	u8			swdma_mask;
-	u8			mwdma_mask;
-	u8			udma_mask;
-};
-
-/*
- * State information carried for REQ_TYPE_ATA_PM_SUSPEND and REQ_TYPE_ATA_PM_RESUME
- * requests.
- */
-struct ide_pm_state {
-	/* PM state machine step value, currently driver specific */
-	int	pm_step;
-	/* requested PM state value (S1, S2, S3, S4, ...) */
-	u32	pm_state;
-	void*	data;		/* for driver use */
-};
-
-
-int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *);
-int ide_pci_init_two(struct pci_dev *, struct pci_dev *,
-		     const struct ide_port_info *, void *);
-void ide_pci_remove(struct pci_dev *);
-
-#ifdef CONFIG_PM
-int ide_pci_suspend(struct pci_dev *, pm_message_t);
-int ide_pci_resume(struct pci_dev *);
-#else
-#define ide_pci_suspend NULL
-#define ide_pci_resume NULL
-#endif
-
-void ide_map_sg(ide_drive_t *, struct ide_cmd *);
-void ide_init_sg_cmd(struct ide_cmd *, unsigned int);
-
-#define BAD_DMA_DRIVE		0
-#define GOOD_DMA_DRIVE		1
-
-struct drive_list_entry {
-	const char *id_model;
-	const char *id_firmware;
-};
-
-int ide_in_drive_list(u16 *, const struct drive_list_entry *);
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-int ide_dma_good_drive(ide_drive_t *);
-int __ide_dma_bad_drive(ide_drive_t *);
-
-u8 ide_find_dma_mode(ide_drive_t *, u8);
-
-static inline u8 ide_max_dma_mode(ide_drive_t *drive)
-{
-	return ide_find_dma_mode(drive, XFER_UDMA_6);
-}
-
-void ide_dma_off_quietly(ide_drive_t *);
-void ide_dma_off(ide_drive_t *);
-void ide_dma_on(ide_drive_t *);
-int ide_set_dma(ide_drive_t *);
-void ide_check_dma_crc(ide_drive_t *);
-ide_startstop_t ide_dma_intr(ide_drive_t *);
-
-int ide_allocate_dma_engine(ide_hwif_t *);
-void ide_release_dma_engine(ide_hwif_t *);
-
-int ide_dma_prepare(ide_drive_t *, struct ide_cmd *);
-void ide_dma_unmap_sg(ide_drive_t *, struct ide_cmd *);
-
-#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
-int config_drive_for_dma(ide_drive_t *);
-int ide_build_dmatable(ide_drive_t *, struct ide_cmd *);
-void ide_dma_host_set(ide_drive_t *, int);
-int ide_dma_setup(ide_drive_t *, struct ide_cmd *);
-extern void ide_dma_start(ide_drive_t *);
-int ide_dma_end(ide_drive_t *);
-int ide_dma_test_irq(ide_drive_t *);
-int ide_dma_sff_timer_expiry(ide_drive_t *);
-u8 ide_dma_sff_read_status(ide_hwif_t *);
-extern const struct ide_dma_ops sff_dma_ops;
-#else
-static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
-#endif /* CONFIG_BLK_DEV_IDEDMA_SFF */
-
-void ide_dma_lost_irq(ide_drive_t *);
-ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int);
-
-#else
-static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; }
-static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; }
-static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; }
-static inline void ide_dma_off(ide_drive_t *drive) { ; }
-static inline void ide_dma_on(ide_drive_t *drive) { ; }
-static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
-static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
-static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
-static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; }
-static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
-static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
-static inline int ide_dma_prepare(ide_drive_t *drive,
-				  struct ide_cmd *cmd) { return 1; }
-static inline void ide_dma_unmap_sg(ide_drive_t *drive,
-				    struct ide_cmd *cmd) { ; }
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-#ifdef CONFIG_BLK_DEV_IDEACPI
-int ide_acpi_init(void);
-bool ide_port_acpi(ide_hwif_t *hwif);
-extern int ide_acpi_exec_tfs(ide_drive_t *drive);
-extern void ide_acpi_get_timing(ide_hwif_t *hwif);
-extern void ide_acpi_push_timing(ide_hwif_t *hwif);
-void ide_acpi_init_port(ide_hwif_t *);
-void ide_acpi_port_init_devices(ide_hwif_t *);
-extern void ide_acpi_set_state(ide_hwif_t *hwif, int on);
-#else
-static inline int ide_acpi_init(void) { return 0; }
-static inline bool ide_port_acpi(ide_hwif_t *hwif) { return 0; }
-static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; }
-static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; }
-static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; }
-static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; }
-static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
-static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
-#endif
-
-void ide_check_nien_quirk_list(ide_drive_t *);
-void ide_undecoded_slave(ide_drive_t *);
-
-void ide_port_apply_params(ide_hwif_t *);
-int ide_sysfs_register_port(ide_hwif_t *);
-
-struct ide_host *ide_host_alloc(const struct ide_port_info *, struct ide_hw **,
-				unsigned int);
-void ide_host_free(struct ide_host *);
-int ide_host_register(struct ide_host *, const struct ide_port_info *,
-		      struct ide_hw **);
-int ide_host_add(const struct ide_port_info *, struct ide_hw **, unsigned int,
-		 struct ide_host **);
-void ide_host_remove(struct ide_host *);
-int ide_legacy_device_add(const struct ide_port_info *, unsigned long);
-void ide_port_unregister_devices(ide_hwif_t *);
-void ide_port_scan(ide_hwif_t *);
-
-static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
-{
-	return hwif->hwif_data;
-}
-
-static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data)
-{
-	hwif->hwif_data = data;
-}
-
-u64 ide_get_lba_addr(struct ide_cmd *, int);
-u8 ide_dump_status(ide_drive_t *, const char *, u8);
-
-struct ide_timing {
-	u8  mode;
-	u8  setup;	/* t1 */
-	u16 act8b;	/* t2 for 8-bit io */
-	u16 rec8b;	/* t2i for 8-bit io */
-	u16 cyc8b;	/* t0 for 8-bit io */
-	u16 active;	/* t2 or tD */
-	u16 recover;	/* t2i or tK */
-	u16 cycle;	/* t0 */
-	u16 udma;	/* t2CYCTYP/2 */
-};
-
-enum {
-	IDE_TIMING_SETUP	= BIT(0),
-	IDE_TIMING_ACT8B	= BIT(1),
-	IDE_TIMING_REC8B	= BIT(2),
-	IDE_TIMING_CYC8B	= BIT(3),
-	IDE_TIMING_8BIT		= IDE_TIMING_ACT8B | IDE_TIMING_REC8B |
-				  IDE_TIMING_CYC8B,
-	IDE_TIMING_ACTIVE	= BIT(4),
-	IDE_TIMING_RECOVER	= BIT(5),
-	IDE_TIMING_CYCLE	= BIT(6),
-	IDE_TIMING_UDMA		= BIT(7),
-	IDE_TIMING_ALL		= IDE_TIMING_SETUP | IDE_TIMING_8BIT |
-				  IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER |
-				  IDE_TIMING_CYCLE | IDE_TIMING_UDMA,
-};
-
-struct ide_timing *ide_timing_find_mode(u8);
-u16 ide_pio_cycle_time(ide_drive_t *, u8);
-void ide_timing_merge(struct ide_timing *, struct ide_timing *,
-		      struct ide_timing *, unsigned int);
-int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int);
-
-#ifdef CONFIG_IDE_XFER_MODE
-int ide_scan_pio_blacklist(char *);
-const char *ide_xfer_verbose(u8);
-int ide_pio_need_iordy(ide_drive_t *, const u8);
-int ide_set_pio_mode(ide_drive_t *, u8);
-int ide_set_dma_mode(ide_drive_t *, u8);
-void ide_set_pio(ide_drive_t *, u8);
-int ide_set_xfer_rate(ide_drive_t *, u8);
-#else
-static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; }
-static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; }
-#endif
-
-static inline void ide_set_max_pio(ide_drive_t *drive)
-{
-	ide_set_pio(drive, 255);
-}
-
-char *ide_media_string(ide_drive_t *);
-
-extern const struct attribute_group *ide_dev_groups[];
-extern struct bus_type ide_bus_type;
-extern struct class *ide_port_class;
-
-static inline void ide_dump_identify(u8 *id)
-{
-	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0);
-}
-
-static inline int hwif_to_node(ide_hwif_t *hwif)
-{
-	return hwif->dev ? dev_to_node(hwif->dev) : -1;
-}
-
-static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
-{
-	ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1];
-
-	return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
-}
-
-static inline void *ide_get_drivedata(ide_drive_t *drive)
-{
-	return drive->drive_data;
-}
-
-static inline void ide_set_drivedata(ide_drive_t *drive, void *data)
-{
-	drive->drive_data = data;
-}
-
-#define ide_port_for_each_dev(i, dev, port) \
-	for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
-
-#define ide_port_for_each_present_dev(i, dev, port) \
-	for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \
-		if ((dev)->dev_flags & IDE_DFLAG_PRESENT)
-
-#define ide_host_for_each_port(i, port, host) \
-	for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
-
-
-#endif /* _IDE_H */