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Date: Sat, 12 Apr 2008 14:34:51 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH 8/9] ide: use IDE I/O helpers directly in ide_tf_{load,read}()
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ide/ide-iops.c | 83 +++++++++++++++++++++++++++++++++----------------
1 file changed, 56 insertions(+), 27 deletions(-)
Index: b/drivers/ide/ide-iops.c
===================================================================
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -132,8 +132,15 @@ static void ide_tf_load(ide_drive_t *dri
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
struct ide_taskfile *tf = &task->tf;
+ void (*tf_outb)(u8 addr, unsigned long port);
+ u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
+ if (mmio)
+ tf_outb = ide_mm_outb;
+ else
+ tf_outb = ide_outb;
+
if (task->tf_flags & IDE_TFLAG_FLAGGED)
HIHI = 0xFF;
@@ -142,34 +149,40 @@ static void ide_tf_load(ide_drive_t *dri
if ((task->tf_flags & IDE_TFLAG_NO_SELECT_MASK) == 0)
SELECT_MASK(drive, 0);
- if (task->tf_flags & IDE_TFLAG_OUT_DATA)
- hwif->OUTW((tf->hob_data << 8) | tf->data, io_ports->data_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+ u16 data = (tf->hob_data << 8) | tf->data;
+
+ if (mmio)
+ writew(data, (void __iomem *)io_ports->data_addr);
+ else
+ outw(data, io_ports->data_addr);
+ }
if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
- hwif->OUTB(tf->hob_feature, io_ports->feature_addr);
+ tf_outb(tf->hob_feature, io_ports->feature_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
- hwif->OUTB(tf->hob_nsect, io_ports->nsect_addr);
+ tf_outb(tf->hob_nsect, io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
- hwif->OUTB(tf->hob_lbal, io_ports->lbal_addr);
+ tf_outb(tf->hob_lbal, io_ports->lbal_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
- hwif->OUTB(tf->hob_lbam, io_ports->lbam_addr);
+ tf_outb(tf->hob_lbam, io_ports->lbam_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
- hwif->OUTB(tf->hob_lbah, io_ports->lbah_addr);
+ tf_outb(tf->hob_lbah, io_ports->lbah_addr);
if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
- hwif->OUTB(tf->feature, io_ports->feature_addr);
+ tf_outb(tf->feature, io_ports->feature_addr);
if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
- hwif->OUTB(tf->nsect, io_ports->nsect_addr);
+ tf_outb(tf->nsect, io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
- hwif->OUTB(tf->lbal, io_ports->lbal_addr);
+ tf_outb(tf->lbal, io_ports->lbal_addr);
if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
- hwif->OUTB(tf->lbam, io_ports->lbam_addr);
+ tf_outb(tf->lbam, io_ports->lbam_addr);
if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
- hwif->OUTB(tf->lbah, io_ports->lbah_addr);
+ tf_outb(tf->lbah, io_ports->lbah_addr);
if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
- hwif->OUTB((tf->device & HIHI) | drive->select.all,
- io_ports->device_addr);
+ tf_outb((tf->device & HIHI) | drive->select.all,
+ io_ports->device_addr);
}
static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
@@ -177,41 +190,57 @@ static void ide_tf_read(ide_drive_t *dri
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
struct ide_taskfile *tf = &task->tf;
+ void (*tf_outb)(u8 addr, unsigned long port);
+ u8 (*tf_inb)(unsigned long port);
+ 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;
+ }
if (task->tf_flags & IDE_TFLAG_IN_DATA) {
- u16 data = hwif->INW(io_ports->data_addr);
+ u16 data;
+
+ if (mmio)
+ data = readw((void __iomem *)io_ports->data_addr);
+ else
+ data = inw(io_ports->data_addr);
tf->data = data & 0xff;
tf->hob_data = (data >> 8) & 0xff;
}
/* be sure we're looking at the low order bits */
- hwif->OUTB(drive->ctl & ~0x80, io_ports->ctl_addr);
+ tf_outb(drive->ctl & ~0x80, io_ports->ctl_addr);
if (task->tf_flags & IDE_TFLAG_IN_NSECT)
- tf->nsect = hwif->INB(io_ports->nsect_addr);
+ tf->nsect = tf_inb(io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_IN_LBAL)
- tf->lbal = hwif->INB(io_ports->lbal_addr);
+ tf->lbal = tf_inb(io_ports->lbal_addr);
if (task->tf_flags & IDE_TFLAG_IN_LBAM)
- tf->lbam = hwif->INB(io_ports->lbam_addr);
+ tf->lbam = tf_inb(io_ports->lbam_addr);
if (task->tf_flags & IDE_TFLAG_IN_LBAH)
- tf->lbah = hwif->INB(io_ports->lbah_addr);
+ tf->lbah = tf_inb(io_ports->lbah_addr);
if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
- tf->device = hwif->INB(io_ports->device_addr);
+ tf->device = tf_inb(io_ports->device_addr);
if (task->tf_flags & IDE_TFLAG_LBA48) {
- hwif->OUTB(drive->ctl | 0x80, io_ports->ctl_addr);
+ tf_outb(drive->ctl | 0x80, io_ports->ctl_addr);
if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
- tf->hob_feature = hwif->INB(io_ports->feature_addr);
+ tf->hob_feature = tf_inb(io_ports->feature_addr);
if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
- tf->hob_nsect = hwif->INB(io_ports->nsect_addr);
+ tf->hob_nsect = tf_inb(io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
- tf->hob_lbal = hwif->INB(io_ports->lbal_addr);
+ tf->hob_lbal = tf_inb(io_ports->lbal_addr);
if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
- tf->hob_lbam = hwif->INB(io_ports->lbam_addr);
+ tf->hob_lbam = tf_inb(io_ports->lbam_addr);
if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
- tf->hob_lbah = hwif->INB(io_ports->lbah_addr);
+ tf->hob_lbah = tf_inb(io_ports->lbah_addr);
}
}
--
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