ide: remove IDE_*_REG macros

* Add IDE_{ALTSTATUS,IREASON,BCOUNTL,BCOUNTH}_OFFSET defines.

* Remove IDE_*_REG macros - this results in more readable
  and slightly smaller code.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 50 insertions, 36 deletions

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index e77cee0e5d65..45944219eea0 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -158,9 +158,12 @@ EXPORT_SYMBOL(default_hwif_mmiops);
 
 void SELECT_DRIVE (ide_drive_t *drive)
 {
-	if (HWIF(drive)->selectproc)
-		HWIF(drive)->selectproc(drive);
-	HWIF(drive)->OUTB(drive->select.all, IDE_SELECT_REG);
+	ide_hwif_t *hwif = drive->hwif;
+
+	if (hwif->selectproc)
+		hwif->selectproc(drive);
+
+	hwif->OUTB(drive->select.all, hwif->io_ports[IDE_SELECT_OFFSET]);
 }
 
 void SELECT_MASK (ide_drive_t *drive, int mask)
@@ -194,15 +197,18 @@ static void ata_input_data(ide_drive_t *drive, void *buffer, u32 wcount)
 	if (io_32bit) {
 		if (io_32bit & 2) {
 			unsigned long flags;
+
 			local_irq_save(flags);
-			ata_vlb_sync(drive, IDE_NSECTOR_REG);
-			hwif->INSL(IDE_DATA_REG, buffer, wcount);
+			ata_vlb_sync(drive, hwif->io_ports[IDE_NSECTOR_OFFSET]);
+			hwif->INSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+				   wcount);
 			local_irq_restore(flags);
 		} else
-			hwif->INSL(IDE_DATA_REG, buffer, wcount);
-	} else {
-		hwif->INSW(IDE_DATA_REG, buffer, wcount<<1);
-	}
+			hwif->INSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+				   wcount);
+	} else
+		hwif->INSW(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+			   wcount << 1);
 }
 
 /*
@@ -216,15 +222,18 @@ static void ata_output_data(ide_drive_t *drive, void *buffer, u32 wcount)
 	if (io_32bit) {
 		if (io_32bit & 2) {
 			unsigned long flags;
+
 			local_irq_save(flags);
-			ata_vlb_sync(drive, IDE_NSECTOR_REG);
-			hwif->OUTSL(IDE_DATA_REG, buffer, wcount);
+			ata_vlb_sync(drive, hwif->io_ports[IDE_NSECTOR_OFFSET]);
+			hwif->OUTSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+				    wcount);
 			local_irq_restore(flags);
 		} else
-			hwif->OUTSL(IDE_DATA_REG, buffer, wcount);
-	} else {
-		hwif->OUTSW(IDE_DATA_REG, buffer, wcount<<1);
-	}
+			hwif->OUTSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+				    wcount);
+	} else
+		hwif->OUTSW(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+			    wcount << 1);
 }
 
 /*
@@ -243,13 +252,15 @@ static void atapi_input_bytes(ide_drive_t *drive, void *buffer, u32 bytecount)
 #if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
 	if (MACH_IS_ATARI || MACH_IS_Q40) {
 		/* Atari has a byte-swapped IDE interface */
-		insw_swapw(IDE_DATA_REG, buffer, bytecount / 2);
+		insw_swapw(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+			   bytecount / 2);
 		return;
 	}
 #endif /* CONFIG_ATARI || CONFIG_Q40 */
 	hwif->ata_input_data(drive, buffer, bytecount / 4);
 	if ((bytecount & 0x03) >= 2)
-		hwif->INSW(IDE_DATA_REG, ((u8 *)buffer)+(bytecount & ~0x03), 1);
+		hwif->INSW(hwif->io_ports[IDE_DATA_OFFSET],
+			   (u8 *)buffer + (bytecount & ~0x03), 1);
 }
 
 static void atapi_output_bytes(ide_drive_t *drive, void *buffer, u32 bytecount)
@@ -260,13 +271,15 @@ static void atapi_output_bytes(ide_drive_t *drive, void *buffer, u32 bytecount)
 #if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
 	if (MACH_IS_ATARI || MACH_IS_Q40) {
 		/* Atari has a byte-swapped IDE interface */
-		outsw_swapw(IDE_DATA_REG, buffer, bytecount / 2);
+		outsw_swapw(hwif->io_ports[IDE_DATA_OFFSET], buffer,
+			    bytecount / 2);
 		return;
 	}
 #endif /* CONFIG_ATARI || CONFIG_Q40 */
 	hwif->ata_output_data(drive, buffer, bytecount / 4);
 	if ((bytecount & 0x03) >= 2)
-		hwif->OUTSW(IDE_DATA_REG, ((u8*)buffer)+(bytecount & ~0x03), 1);
+		hwif->OUTSW(hwif->io_ports[IDE_DATA_OFFSET],
+			    (u8 *)buffer + (bytecount & ~0x03), 1);
 }
 
 void default_hwif_transport(ide_hwif_t *hwif)
@@ -429,7 +442,7 @@ int drive_is_ready (ide_drive_t *drive)
 	 * an interrupt with another pci card/device.  We make no assumptions
 	 * about possible isa-pnp and pci-pnp issues yet.
 	 */
-	if (IDE_CONTROL_REG)
+	if (hwif->io_ports[IDE_CONTROL_OFFSET])
 		stat = ide_read_altstatus(drive);
 	else
 		/* Note: this may clear a pending IRQ!! */
@@ -631,7 +644,7 @@ int ide_driveid_update(ide_drive_t *drive)
 	SELECT_MASK(drive, 1);
 	ide_set_irq(drive, 1);
 	msleep(50);
-	hwif->OUTB(WIN_IDENTIFY, IDE_COMMAND_REG);
+	hwif->OUTB(WIN_IDENTIFY, hwif->io_ports[IDE_COMMAND_OFFSET]);
 	timeout = jiffies + WAIT_WORSTCASE;
 	do {
 		if (time_after(jiffies, timeout)) {
@@ -718,9 +731,10 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 	SELECT_MASK(drive, 0);
 	udelay(1);
 	ide_set_irq(drive, 0);
-	hwif->OUTB(speed, IDE_NSECTOR_REG);
-	hwif->OUTB(SETFEATURES_XFER, IDE_FEATURE_REG);
-	hwif->OUTBSYNC(drive, WIN_SETFEATURES, IDE_COMMAND_REG);
+	hwif->OUTB(speed, hwif->io_ports[IDE_NSECTOR_OFFSET]);
+	hwif->OUTB(SETFEATURES_XFER, hwif->io_ports[IDE_FEATURE_OFFSET]);
+	hwif->OUTBSYNC(drive, WIN_SETFEATURES,
+		       hwif->io_ports[IDE_COMMAND_OFFSET]);
 	if (drive->quirk_list == 2)
 		ide_set_irq(drive, 1);
 
@@ -828,7 +842,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
 
 	spin_lock_irqsave(&ide_lock, flags);
 	__ide_set_handler(drive, handler, timeout, expiry);
-	hwif->OUTBSYNC(drive, cmd, IDE_COMMAND_REG);
+	hwif->OUTBSYNC(drive, cmd, hwif->io_ports[IDE_COMMAND_OFFSET]);
 	/*
 	 * Drive takes 400nS to respond, we must avoid the IRQ being
 	 * serviced before that.
@@ -1009,7 +1023,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 	unsigned long flags;
 	ide_hwif_t *hwif;
 	ide_hwgroup_t *hwgroup;
-	
+	u8 ctl;
+
 	spin_lock_irqsave(&ide_lock, flags);
 	hwif = HWIF(drive);
 	hwgroup = HWGROUP(drive);
@@ -1023,7 +1038,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 		pre_reset(drive);
 		SELECT_DRIVE(drive);
 		udelay (20);
-		hwif->OUTBSYNC(drive, WIN_SRST, IDE_COMMAND_REG);
+		hwif->OUTBSYNC(drive, WIN_SRST,
+			       hwif->io_ports[IDE_COMMAND_OFFSET]);
 		ndelay(400);
 		hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
 		hwgroup->polling = 1;
@@ -1039,7 +1055,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 	for (unit = 0; unit < MAX_DRIVES; ++unit)
 		pre_reset(&hwif->drives[unit]);
 
-	if (!IDE_CONTROL_REG) {
+	if (hwif->io_ports[IDE_CONTROL_OFFSET] == 0) {
 		spin_unlock_irqrestore(&ide_lock, flags);
 		return ide_stopped;
 	}
@@ -1054,16 +1070,14 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 	 * recover from reset very quickly, saving us the first 50ms wait time.
 	 */
 	/* set SRST and nIEN */
-	hwif->OUTBSYNC(drive, drive->ctl|6,IDE_CONTROL_REG);
+	hwif->OUTBSYNC(drive, drive->ctl|6, hwif->io_ports[IDE_CONTROL_OFFSET]);
 	/* more than enough time */
 	udelay(10);
-	if (drive->quirk_list == 2) {
-		/* clear SRST and nIEN */
-		hwif->OUTBSYNC(drive, drive->ctl, IDE_CONTROL_REG);
-	} else {
-		/* clear SRST, leave nIEN */
-		hwif->OUTBSYNC(drive, drive->ctl|2, IDE_CONTROL_REG);
-	}
+	if (drive->quirk_list == 2)
+		ctl = drive->ctl;	/* clear SRST and nIEN */
+	else
+		ctl = drive->ctl | 2;	/* clear SRST, leave nIEN */
+	hwif->OUTBSYNC(drive, ctl, hwif->io_ports[IDE_CONTROL_OFFSET]);
 	/* more than enough time */
 	udelay(10);
 	hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;