[linux-2.6-block.git] / drivers / ide / ide-io-std.c


#include <linux/kernel.h>
#include <linux/ide.h>

#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \
    defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
#include <asm/ide.h>
#else
#include <asm-generic/ide_iops.h>
#endif

/*
 *	Conventional PIO operations for ATA devices
 */

static u8 ide_inb(unsigned long port)
{
	return (u8) inb(port);
}

static void ide_outb(u8 val, unsigned long port)
{
	outb(val, port);
}

/*
 *	MMIO operations, typically used for SATA controllers
 */

static u8 ide_mm_inb(unsigned long port)
{
	return (u8) readb((void __iomem *) port);
}

static void ide_mm_outb(u8 value, unsigned long port)
{
	writeb(value, (void __iomem *) port);
}

void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
{
	if (hwif->host_flags & IDE_HFLAG_MMIO)
		writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
	else
		outb(cmd, hwif->io_ports.command_addr);
}
EXPORT_SYMBOL_GPL(ide_exec_command);

u8 ide_read_status(ide_hwif_t *hwif)
{
	if (hwif->host_flags & IDE_HFLAG_MMIO)
		return readb((void __iomem *)hwif->io_ports.status_addr);
	else
		return inb(hwif->io_ports.status_addr);
}
EXPORT_SYMBOL_GPL(ide_read_status);

u8 ide_read_altstatus(ide_hwif_t *hwif)
{
	if (hwif->host_flags & IDE_HFLAG_MMIO)
		return readb((void __iomem *)hwif->io_ports.ctl_addr);
	else
		return inb(hwif->io_ports.ctl_addr);
}
EXPORT_SYMBOL_GPL(ide_read_altstatus);

void ide_write_devctl(ide_hwif_t *hwif, u8 ctl)
{
	if (hwif->host_flags & IDE_HFLAG_MMIO)
		writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
	else
		outb(ctl, hwif->io_ports.ctl_addr);
}
EXPORT_SYMBOL_GPL(ide_write_devctl);

void ide_dev_select(ide_drive_t *drive)
{
	ide_hwif_t *hwif = drive->hwif;
	u8 select = drive->select | ATA_DEVICE_OBS;

	if (hwif->host_flags & IDE_HFLAG_MMIO)
		writeb(select, (void __iomem *)hwif->io_ports.device_addr);
	else
		outb(select, hwif->io_ports.device_addr);
}
EXPORT_SYMBOL_GPL(ide_dev_select);

void ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
{
	ide_hwif_t *hwif = drive->hwif;
	struct ide_io_ports *io_ports = &hwif->io_ports;
	struct ide_taskfile *tf = &cmd->hob;
	void (*tf_outb)(u8 addr, unsigned long port);
	u8 valid = cmd->valid.out.hob;
	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
	u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;

	if (mmio)
		tf_outb = ide_mm_outb;
	else
		tf_outb = ide_outb;

	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
		HIHI = 0xFF;

	if (valid & IDE_VALID_FEATURE)
		tf_outb(tf->feature, io_ports->feature_addr);
	if (valid & IDE_VALID_NSECT)
		tf_outb(tf->nsect, io_ports->nsect_addr);
	if (valid & IDE_VALID_LBAL)
		tf_outb(tf->lbal, io_ports->lbal_addr);
	if (valid & IDE_VALID_LBAM)
		tf_outb(tf->lbam, io_ports->lbam_addr);
	if (valid & IDE_VALID_LBAH)
		tf_outb(tf->lbah, io_ports->lbah_addr);

	tf = &cmd->tf;
	valid = cmd->valid.out.tf;

	if (valid & IDE_VALID_FEATURE)
		tf_outb(tf->feature, io_ports->feature_addr);
	if (valid & IDE_VALID_NSECT)
		tf_outb(tf->nsect, io_ports->nsect_addr);
	if (valid & IDE_VALID_LBAL)
		tf_outb(tf->lbal, io_ports->lbal_addr);
	if (valid & IDE_VALID_LBAM)
		tf_outb(tf->lbam, io_ports->lbam_addr);
	if (valid & IDE_VALID_LBAH)
		tf_outb(tf->lbah, io_ports->lbah_addr);

	if (valid & IDE_VALID_DEVICE)
		tf_outb((tf->device & HIHI) | drive->select,
			 io_ports->device_addr);
}
EXPORT_SYMBOL_GPL(ide_tf_load);

void ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
{
	ide_hwif_t *hwif = drive->hwif;
	struct ide_io_ports *io_ports = &hwif->io_ports;
	struct ide_taskfile *tf = &cmd->tf;
	void (*tf_outb)(u8 addr, unsigned long port);
	u8 (*tf_inb)(unsigned long port);
	u8 valid = cmd->valid.in.tf;
	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;

	if (mmio) {
		tf_outb = ide_mm_outb;
		tf_inb  = ide_mm_inb;
	} else {
		tf_outb = ide_outb;
		tf_inb  = ide_inb;
	}

	/* be sure we're looking at the low order bits */
	tf_outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);

	if (valid & IDE_VALID_ERROR)
		tf->error  = tf_inb(io_ports->feature_addr);
	if (valid & IDE_VALID_NSECT)
		tf->nsect  = tf_inb(io_ports->nsect_addr);
	if (valid & IDE_VALID_LBAL)
		tf->lbal   = tf_inb(io_ports->lbal_addr);
	if (valid & IDE_VALID_LBAM)
		tf->lbam   = tf_inb(io_ports->lbam_addr);
	if (valid & IDE_VALID_LBAH)
		tf->lbah   = tf_inb(io_ports->lbah_addr);
	if (valid & IDE_VALID_DEVICE)
		tf->device = tf_inb(io_ports->device_addr);

	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
		tf_outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr);

		tf = &cmd->hob;
		valid = cmd->valid.in.hob;

		if (valid & IDE_VALID_ERROR)
			tf->error = tf_inb(io_ports->feature_addr);
		if (valid & IDE_VALID_NSECT)
			tf->nsect = tf_inb(io_ports->nsect_addr);
		if (valid & IDE_VALID_LBAL)
			tf->lbal  = tf_inb(io_ports->lbal_addr);
		if (valid & IDE_VALID_LBAM)
			tf->lbam  = tf_inb(io_ports->lbam_addr);
		if (valid & IDE_VALID_LBAH)
			tf->lbah  = tf_inb(io_ports->lbah_addr);
	}
}
EXPORT_SYMBOL_GPL(ide_tf_read);

/*
 * Some localbus EIDE interfaces require a special access sequence
 * when using 32-bit I/O instructions to transfer data.  We call this
 * the "vlb_sync" sequence, which consists of three successive reads
 * of the sector count register location, with interrupts disabled
 * to ensure that the reads all happen together.
 */
static void ata_vlb_sync(unsigned long port)
{
	(void)inb(port);
	(void)inb(port);
	(void)inb(port);
}

/*
 * This is used for most PIO data transfers *from* the IDE interface
 *
 * These routines will round up any request for an odd number of bytes,
 * so if an odd len is specified, be sure that there's at least one
 * extra byte allocated for the buffer.
 */
void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
		    unsigned int len)
{
	ide_hwif_t *hwif = drive->hwif;
	struct ide_io_ports *io_ports = &hwif->io_ports;
	unsigned long data_addr = io_ports->data_addr;
	unsigned int words = (len + 1) >> 1;
	u8 io_32bit = drive->io_32bit;
	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;

	if (io_32bit) {
		unsigned long uninitialized_var(flags);

		if ((io_32bit & 2) && !mmio) {
			local_irq_save(flags);
			ata_vlb_sync(io_ports->nsect_addr);
		}

		words >>= 1;
		if (mmio)
			__ide_mm_insl((void __iomem *)data_addr, buf, words);
		else
			insl(data_addr, buf, words);

		if ((io_32bit & 2) && !mmio)
			local_irq_restore(flags);

		if (((len + 1) & 3) < 2)
			return;

		buf += len & ~3;
		words = 1;
	}

	if (mmio)
		__ide_mm_insw((void __iomem *)data_addr, buf, words);
	else
		insw(data_addr, buf, words);
}
EXPORT_SYMBOL_GPL(ide_input_data);

/*
 * This is used for most PIO data transfers *to* the IDE interface
 */
void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
		     unsigned int len)
{
	ide_hwif_t *hwif = drive->hwif;
	struct ide_io_ports *io_ports = &hwif->io_ports;
	unsigned long data_addr = io_ports->data_addr;
	unsigned int words = (len + 1) >> 1;
	u8 io_32bit = drive->io_32bit;
	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;

	if (io_32bit) {
		unsigned long uninitialized_var(flags);

		if ((io_32bit & 2) && !mmio) {
			local_irq_save(flags);
			ata_vlb_sync(io_ports->nsect_addr);
		}

		words >>= 1;
		if (mmio)
			__ide_mm_outsl((void __iomem *)data_addr, buf, words);
		else
			outsl(data_addr, buf, words);

		if ((io_32bit & 2) && !mmio)
			local_irq_restore(flags);

		if (((len + 1) & 3) < 2)
			return;

		buf += len & ~3;
		words = 1;
	}

	if (mmio)
		__ide_mm_outsw((void __iomem *)data_addr, buf, words);
	else
		outsw(data_addr, buf, words);
}
EXPORT_SYMBOL_GPL(ide_output_data);

const struct ide_tp_ops default_tp_ops = {
	.exec_command		= ide_exec_command,
	.read_status		= ide_read_status,
	.read_altstatus		= ide_read_altstatus,
	.write_devctl		= ide_write_devctl,

	.dev_select		= ide_dev_select,
	.tf_load		= ide_tf_load,
	.tf_read		= ide_tf_read,

	.input_data		= ide_input_data,
	.output_data		= ide_output_data,
};
Commit	Line	Data
1574cf6c BZ	1
	2	#include <linux/kernel.h>
	3	#include <linux/ide.h>
	4
15a453a9 BZ	5	#if defined(CONFIG_ARM) \|\| defined(CONFIG_M68K) \|\| defined(CONFIG_MIPS) \|\| \
	6	defined(CONFIG_PARISC) \|\| defined(CONFIG_PPC) \|\| defined(CONFIG_SPARC)
	7	#include <asm/ide.h>
	8	#else
	9	#include <asm-generic/ide_iops.h>
	10	#endif
	11
1574cf6c BZ	12	/*
	13	* Conventional PIO operations for ATA devices
	14	*/
	15
	16	static u8 ide_inb(unsigned long port)
	17	{
	18	return (u8) inb(port);
	19	}
	20
	21	static void ide_outb(u8 val, unsigned long port)
	22	{
	23	outb(val, port);
	24	}
	25
	26	/*
	27	* MMIO operations, typically used for SATA controllers
	28	*/
	29
	30	static u8 ide_mm_inb(unsigned long port)
	31	{
	32	return (u8) readb((void __iomem *) port);
	33	}
	34
	35	static void ide_mm_outb(u8 value, unsigned long port)
	36	{
	37	writeb(value, (void __iomem *) port);
	38	}
	39
	40	void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
	41	{
	42	if (hwif->host_flags & IDE_HFLAG_MMIO)
	43	writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
	44	else
	45	outb(cmd, hwif->io_ports.command_addr);
	46	}
	47	EXPORT_SYMBOL_GPL(ide_exec_command);
	48
	49	u8 ide_read_status(ide_hwif_t *hwif)
	50	{
	51	if (hwif->host_flags & IDE_HFLAG_MMIO)
	52	return readb((void __iomem *)hwif->io_ports.status_addr);
	53	else
	54	return inb(hwif->io_ports.status_addr);
	55	}
	56	EXPORT_SYMBOL_GPL(ide_read_status);
	57
	58	u8 ide_read_altstatus(ide_hwif_t *hwif)
	59	{
	60	if (hwif->host_flags & IDE_HFLAG_MMIO)
	61	return readb((void __iomem *)hwif->io_ports.ctl_addr);
	62	else
	63	return inb(hwif->io_ports.ctl_addr);
	64	}
	65	EXPORT_SYMBOL_GPL(ide_read_altstatus);
	66
ecf3a31d	67	void ide_write_devctl(ide_hwif_t *hwif, u8 ctl)
1574cf6c	68	{
1574cf6c BZ	69	if (hwif->host_flags & IDE_HFLAG_MMIO)
	70	writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
	71	else
	72	outb(ctl, hwif->io_ports.ctl_addr);
	73	}
ecf3a31d	74	EXPORT_SYMBOL_GPL(ide_write_devctl);
1574cf6c	75
abb596b2 SS	76	void ide_dev_select(ide_drive_t *drive)
	77	{
	78	ide_hwif_t *hwif = drive->hwif;
	79	u8 select = drive->select \| ATA_DEVICE_OBS;
	80
	81	if (hwif->host_flags & IDE_HFLAG_MMIO)
	82	writeb(select, (void __iomem *)hwif->io_ports.device_addr);
	83	else
	84	outb(select, hwif->io_ports.device_addr);
	85	}
	86	EXPORT_SYMBOL_GPL(ide_dev_select);
	87
22aa4b32	88	void ide_tf_load(ide_drive_t drive, struct ide_cmd cmd)
1574cf6c BZ	89	{
	90	ide_hwif_t *hwif = drive->hwif;
	91	struct ide_io_ports *io_ports = &hwif->io_ports;
745483f1	92	struct ide_taskfile *tf = &cmd->hob;
1574cf6c	93	void (*tf_outb)(u8 addr, unsigned long port);
60f85019	94	u8 valid = cmd->valid.out.hob;
1574cf6c	95	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
22aa4b32	96	u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
1574cf6c BZ	97
	98	if (mmio)
	99	tf_outb = ide_mm_outb;
	100	else
	101	tf_outb = ide_outb;
	102
22aa4b32	103	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
1574cf6c BZ	104	HIHI = 0xFF;
1574cf6c BZ	105
60f85019	106	if (valid & IDE_VALID_FEATURE)
745483f1	107	tf_outb(tf->feature, io_ports->feature_addr);
60f85019	108	if (valid & IDE_VALID_NSECT)
745483f1	109	tf_outb(tf->nsect, io_ports->nsect_addr);
60f85019	110	if (valid & IDE_VALID_LBAL)
745483f1	111	tf_outb(tf->lbal, io_ports->lbal_addr);
60f85019	112	if (valid & IDE_VALID_LBAM)
745483f1	113	tf_outb(tf->lbam, io_ports->lbam_addr);
60f85019	114	if (valid & IDE_VALID_LBAH)
745483f1	115	tf_outb(tf->lbah, io_ports->lbah_addr);
1574cf6c	116
745483f1	117	tf = &cmd->tf;
60f85019 SS	118	valid = cmd->valid.out.tf;
	119
	120	if (valid & IDE_VALID_FEATURE)
1574cf6c	121	tf_outb(tf->feature, io_ports->feature_addr);
60f85019	122	if (valid & IDE_VALID_NSECT)
1574cf6c	123	tf_outb(tf->nsect, io_ports->nsect_addr);
60f85019	124	if (valid & IDE_VALID_LBAL)
1574cf6c	125	tf_outb(tf->lbal, io_ports->lbal_addr);
60f85019	126	if (valid & IDE_VALID_LBAM)
1574cf6c	127	tf_outb(tf->lbam, io_ports->lbam_addr);
60f85019	128	if (valid & IDE_VALID_LBAH)
1574cf6c BZ	129	tf_outb(tf->lbah, io_ports->lbah_addr);
1574cf6c BZ	130
60f85019	131	if (valid & IDE_VALID_DEVICE)
1574cf6c BZ	132	tf_outb((tf->device & HIHI) \| drive->select,
	133	io_ports->device_addr);
	134	}
	135	EXPORT_SYMBOL_GPL(ide_tf_load);
	136
22aa4b32	137	void ide_tf_read(ide_drive_t drive, struct ide_cmd cmd)
1574cf6c BZ	138	{
	139	ide_hwif_t *hwif = drive->hwif;
	140	struct ide_io_ports *io_ports = &hwif->io_ports;
22aa4b32	141	struct ide_taskfile *tf = &cmd->tf;
1574cf6c BZ	142	void (*tf_outb)(u8 addr, unsigned long port);
1574cf6c BZ	143	u8 (*tf_inb)(unsigned long port);
60f85019	144	u8 valid = cmd->valid.in.tf;
1574cf6c BZ	145	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
	146
	147	if (mmio) {
	148	tf_outb = ide_mm_outb;
	149	tf_inb = ide_mm_inb;
	150	} else {
	151	tf_outb = ide_outb;
	152	tf_inb = ide_inb;
	153	}
	154
1574cf6c	155	/* be sure we're looking at the low order bits */
4d74c3fc	156	tf_outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);
1574cf6c	157
60f85019	158	if (valid & IDE_VALID_ERROR)
67625119	159	tf->error = tf_inb(io_ports->feature_addr);
60f85019	160	if (valid & IDE_VALID_NSECT)
1574cf6c	161	tf->nsect = tf_inb(io_ports->nsect_addr);
60f85019	162	if (valid & IDE_VALID_LBAL)
1574cf6c	163	tf->lbal = tf_inb(io_ports->lbal_addr);
60f85019	164	if (valid & IDE_VALID_LBAM)
1574cf6c	165	tf->lbam = tf_inb(io_ports->lbam_addr);
60f85019	166	if (valid & IDE_VALID_LBAH)
1574cf6c	167	tf->lbah = tf_inb(io_ports->lbah_addr);
60f85019	168	if (valid & IDE_VALID_DEVICE)
1574cf6c BZ	169	tf->device = tf_inb(io_ports->device_addr);
1574cf6c BZ	170
22aa4b32	171	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
4d74c3fc	172	tf_outb(ATA_HOB \| ATA_DEVCTL_OBS, io_ports->ctl_addr);
1574cf6c	173
745483f1	174	tf = &cmd->hob;
60f85019 SS	175	valid = cmd->valid.in.hob;
	176
	177	if (valid & IDE_VALID_ERROR)
745483f1	178	tf->error = tf_inb(io_ports->feature_addr);
60f85019	179	if (valid & IDE_VALID_NSECT)
745483f1	180	tf->nsect = tf_inb(io_ports->nsect_addr);
60f85019	181	if (valid & IDE_VALID_LBAL)
745483f1	182	tf->lbal = tf_inb(io_ports->lbal_addr);
60f85019	183	if (valid & IDE_VALID_LBAM)
745483f1	184	tf->lbam = tf_inb(io_ports->lbam_addr);
60f85019	185	if (valid & IDE_VALID_LBAH)
745483f1	186	tf->lbah = tf_inb(io_ports->lbah_addr);
1574cf6c BZ	187	}
	188	}
	189	EXPORT_SYMBOL_GPL(ide_tf_read);
	190
	191	/*
	192	* Some localbus EIDE interfaces require a special access sequence
	193	* when using 32-bit I/O instructions to transfer data. We call this
	194	* the "vlb_sync" sequence, which consists of three successive reads
	195	* of the sector count register location, with interrupts disabled
	196	* to ensure that the reads all happen together.
	197	*/
	198	static void ata_vlb_sync(unsigned long port)
	199	{
	200	(void)inb(port);
	201	(void)inb(port);
	202	(void)inb(port);
	203	}
	204
	205	/*
	206	* This is used for most PIO data transfers from the IDE interface
	207	*
	208	* These routines will round up any request for an odd number of bytes,
	209	* so if an odd len is specified, be sure that there's at least one
	210	* extra byte allocated for the buffer.
	211	*/
adb1af98	212	void ide_input_data(ide_drive_t drive, struct ide_cmd cmd, void *buf,
1574cf6c BZ	213	unsigned int len)
	214	{
	215	ide_hwif_t *hwif = drive->hwif;
	216	struct ide_io_ports *io_ports = &hwif->io_ports;
	217	unsigned long data_addr = io_ports->data_addr;
deae17fd	218	unsigned int words = (len + 1) >> 1;
1574cf6c BZ	219	u8 io_32bit = drive->io_32bit;
	220	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
	221
1574cf6c BZ	222	if (io_32bit) {
	223	unsigned long uninitialized_var(flags);
	224
	225	if ((io_32bit & 2) && !mmio) {
	226	local_irq_save(flags);
	227	ata_vlb_sync(io_ports->nsect_addr);
	228	}
	229
deae17fd	230	words >>= 1;
1574cf6c	231	if (mmio)
deae17fd	232	__ide_mm_insl((void __iomem *)data_addr, buf, words);
1574cf6c	233	else
deae17fd	234	insl(data_addr, buf, words);
1574cf6c BZ	235
	236	if ((io_32bit & 2) && !mmio)
	237	local_irq_restore(flags);
	238
deae17fd SS	239	if (((len + 1) & 3) < 2)
	240	return;
	241
	242	buf += len & ~3;
	243	words = 1;
1574cf6c	244	}
deae17fd SS	245
	246	if (mmio)
	247	__ide_mm_insw((void __iomem *)data_addr, buf, words);
	248	else
	249	insw(data_addr, buf, words);
1574cf6c BZ	250	}
	251	EXPORT_SYMBOL_GPL(ide_input_data);
	252
	253	/*
	254	* This is used for most PIO data transfers to the IDE interface
	255	*/
adb1af98	256	void ide_output_data(ide_drive_t drive, struct ide_cmd cmd, void *buf,
1574cf6c BZ	257	unsigned int len)
	258	{
	259	ide_hwif_t *hwif = drive->hwif;
	260	struct ide_io_ports *io_ports = &hwif->io_ports;
	261	unsigned long data_addr = io_ports->data_addr;
deae17fd	262	unsigned int words = (len + 1) >> 1;
1574cf6c BZ	263	u8 io_32bit = drive->io_32bit;
	264	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
	265
1574cf6c BZ	266	if (io_32bit) {
	267	unsigned long uninitialized_var(flags);
	268
	269	if ((io_32bit & 2) && !mmio) {
	270	local_irq_save(flags);
	271	ata_vlb_sync(io_ports->nsect_addr);
	272	}
	273
deae17fd	274	words >>= 1;
1574cf6c	275	if (mmio)
deae17fd	276	__ide_mm_outsl((void __iomem *)data_addr, buf, words);
1574cf6c	277	else
deae17fd	278	outsl(data_addr, buf, words);
1574cf6c BZ	279
	280	if ((io_32bit & 2) && !mmio)
	281	local_irq_restore(flags);
	282
deae17fd SS	283	if (((len + 1) & 3) < 2)
	284	return;
	285
	286	buf += len & ~3;
	287	words = 1;
1574cf6c	288	}
deae17fd SS	289
	290	if (mmio)
	291	__ide_mm_outsw((void __iomem *)data_addr, buf, words);
	292	else
	293	outsw(data_addr, buf, words);
1574cf6c BZ	294	}
	295	EXPORT_SYMBOL_GPL(ide_output_data);
	296
	297	const struct ide_tp_ops default_tp_ops = {
	298	.exec_command = ide_exec_command,
	299	.read_status = ide_read_status,
	300	.read_altstatus = ide_read_altstatus,
ecf3a31d	301	.write_devctl = ide_write_devctl,
1574cf6c	302
abb596b2	303	.dev_select = ide_dev_select,
1574cf6c BZ	304	.tf_load = ide_tf_load,
	305	.tf_read = ide_tf_read,
	306
	307	.input_data = ide_input_data,
	308	.output_data = ide_output_data,
	309	};