84B9AEB067BF149F8DFBD1E
  +   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÃ„teß_†I|¥+ÁÇ ?÷     /* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  Copyright 2003-2005 Red Hat, Inc.  All rights reserved.
 *  Copyright 2003-2005 Jeff Garzik
 *
 *  libata documentation is available via 'make {ps|pdf}docs',
 *  as Documentation/driver-api/libata.rst
 */

#ifndef __LINUX_LIBATA_H__
#define __LINUX_LIBATA_H__

#include <linux/delay.h>
#include <linux/jiffies.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/scatterlist.h>
#include <linux/io.h>
#include <linux/ata.h>
#include <linux/workqueue.h>
#include <scsi/scsi_host.h>
#include <linux/acpi.h>
#include <linux/cdrom.h>
#include <linux/sched.h>
#include <linux/async.h>

/*
 * Define if arch has non-standard setup.  This is a _PCI_ standard
 * not a legacy or ISA standard.
 */
#ifdef CONFIG_ATA_NONSTANDARD
#include <asm/libata-portmap.h>
#else
#define ATA_PRIMARY_IRQ(dev)	14
#define ATA_SECONDARY_IRQ(dev)	15
#endif

/*
 * compile-time options: to be removed as soon as all the drivers are
 * converted to the new debugging mechanism
 */
#undef ATA_IRQ_TRAP		/* define to ack screaming irqs */


#define ata_print_version_once(dev, version)			\
({								\
	static bool __print_once;				\
								\
	if (!__print_once) {					\
		__print_once = true;				\
		ata_print_version(dev, version);		\
	}							\
})

/* defines only for the constants which don't work well as enums */
#define ATA_TAG_POISON		0xfafbfcfdU

enum {
	/* various global constants */
	LIBATA_MAX_PRD		= ATA_MAX_PRD / 2,
	LIBATA_DUMB_MAX_PRD	= ATA_MAX_PRD / 4,	/* Worst case */
	ATA_DEF_QUEUE		= 1,
	ATA_MAX_QUEUE		= 32,
	ATA_TAG_INTERNAL	= ATA_MAX_QUEUE,
	ATA_SHORT_PAUSE		= 16,

	ATAPI_MAX_DRAIN		= 16 << 10,

	ATA_ALL_DEVICES		= (1 << ATA_MAX_DEVICES) - 1,

	ATA_SHT_EMULATED	= 1,
	ATA_SHT_THIS_ID		= -1,

	/* struct ata_taskfile flags */
	ATA_TFLAG_LBA48		= (1 << 0), /* enable 48-bit LBA and "HOB" */
	ATA_TFLAG_ISADDR	= (1 << 1), /* enable r/w to nsect/lba regs */
	ATA_TFLAG_DEVICE	= (1 << 2), /* enable r/w to device reg */
	ATA_TFLAG_WRITE		= (1 << 3), /* data dir: host->dev==1 (write) */
	ATA_TFLAG_LBA		= (1 << 4), /* enable LBA */
	ATA_TFLAG_FUA		= (1 << 5), /* enable FUA */
	ATA_TFLAG_POLLING	= (1 << 6), /* set nIEN to 1 and use polling */

	/* struct ata_device stuff */
	ATA_DFLAG_LBA		= (1 << 0), /* device supports LBA */
	ATA_DFLAG_LBA48		= (1 << 1), /* device supports LBA48 */
	ATA_DFLAG_CDB_INTR	= (1 << 2), /* device asserts INTRQ when ready for CDB */
	ATA_DFLAG_NCQ		= (1 << 3), /* device supports NCQ */
	ATA_DFLAG_FLUSH_EXT	= (1 << 4), /* do FLUSH_EXT instead of FLUSH */
	ATA_DFLAG_ACPI_PENDING	= (1 << 5), /* ACPI resume action pending */
	ATA_DFLAG_ACPI_FAILED	= (1 << 6), /* ACPI on devcfg has failed */
	ATA_DFLAG_AN		= (1 << 7), /* AN configured */
	ATA_DFLAG_TRUSTED	= (1 << 8), /* device supports trusted send/recv */
	ATA_DFLAG_FUA		= (1 << 9), /* device supports FUA */
	ATA_DFLAG_DMADIR	= (1 << 10), /* device requires DMADIR */
	ATA_DFLAG_NCQ_SEND_RECV = (1 << 11), /* device supports NCQ SEND and RECV */
	ATA_DFLAG_NCQ_PRIO	= (1 << 12), /* device supports NCQ priority */
	ATA_DFLAG_CDL		= (1 << 13), /* supports cmd duration limits */
	ATA_DFLAG_CFG_MASK	= (1 << 14) - 1,

	ATA_DFLAG_PIO		= (1 << 14), /* device limited to PIO mode */
	ATA_DFLAG_NCQ_OFF	= (1 << 15), /* device limited to non-NCQ mode */
	ATA_DFLAG_SLEEPING	= (1 << 16), /* device is sleeping */
	ATA_DFLAG_DUBIOUS_XFER	= (1 << 17), /* data transfer not verified */
	ATA_DFLAG_NO_UNLOAD	= (1 << 18), /* device doesn't support unload */
	ATA_DFLAG_UNLOCK_HPA	= (1 << 19), /* unlock HPA */
	ATA_DFLAG_INIT_MASK	= (1 << 20) - 1,

	ATA_DFLAG_NCQ_PRIO_ENABLED = (1 << 20), /* Priority cmds sent to dev */
	ATA_DFLAG_CDL_ENABLED	= (1 << 21), /* cmd duration limits is enabled */
	ATA_DFLAG_DETACH	= (1 << 24),
	ATA_DFLAG_DETACHED	= (1 << 25),
	ATA_DFLAG_DA		= (1 << 26), /* device supports Device Attention */
	ATA_DFLAG_DEVSLP	= (1 << 27), /* device supports Device Sleep */
	ATA_DFLAG_ACPI_DISABLED = (1 << 28), /* ACPI for the device is disabl