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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-28 23:44:40 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-28 23:44:40 +0200
commitea23b8ba0068df281988bfba605f107edb01bf7f (patch)
tree8f7708fff14f80994d9e4d6c864a744b25323574 /drivers/ide
parentdb2432c40f4afbf5869d4885adbd023c581dbd0b (diff)
ns87415: add ->tf_read method
Add ->tf_read method so out{b,w}(), in{b,w}() and superio_ide_inb() can be used directly. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/pci/ns87415.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index c13e299077ec..fec4955f449b 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -63,6 +63,48 @@ static u8 superio_ide_inb (unsigned long port)
return inb(port);
}
+static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
+{
+ struct ide_io_ports *io_ports = &drive->hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+
+ if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+ u16 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 */
+ outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+ tf->nsect = inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+ tf->lbal = inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+ tf->lbam = inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+ tf->lbah = inb(io_ports->lbah_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+ tf->device = superio_ide_inb(io_ports->device_addr);
+
+ if (task->tf_flags & IDE_TFLAG_LBA48) {
+ outb(drive->ctl | 0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+ tf->hob_feature = inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+ tf->hob_nsect = inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+ tf->hob_lbal = inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+ tf->hob_lbam = inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+ tf->hob_lbah = inb(io_ports->lbah_addr);
+ }
+}
+
static void __devinit superio_ide_init_iops (struct hwif_s *hwif)
{
struct pci_dev *pdev = to_pci_dev(hwif->dev);
@@ -80,6 +122,8 @@ static void __devinit superio_ide_init_iops (struct hwif_s *hwif)
tmp = superio_ide_inb(superio_ide_dma_status[port]);
outb(tmp | 0x66, superio_ide_dma_status[port]);
+ hwif->tf_read = superio_tf_read;
+
/* We need to override inb to workaround a SuperIO errata */
hwif->INB = superio_ide_inb;
}