ide: move read_sff_dma_status() method to 'struct ide_dma_ops'
Move apparently misplaced read_sff_dma_status() method from 'struct ide_tp_ops'
to 'struct ide_dma_ops', renaming it to dma_sff_read_status() and making only
required for SFF-8038i compatible IDE controller drivers (greatly cutting down
the number of initializers) as its only user (outside ide-dma-sff.c and such
drivers) appears to be ide_pci_check_simplex() which is only called for such
controllers...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-dma-sff.c b/drivers/ide/ide-dma-sff.c
index 623a82d..bcdadc7 100644
--- a/drivers/ide/ide-dma-sff.c
+++ b/drivers/ide/ide-dma-sff.c
@@ -50,6 +50,17 @@
return 0;
}
+u8 ide_dma_sff_read_status(ide_hwif_t *hwif)
+{
+ unsigned long addr = hwif->dma_base + ATA_DMA_STATUS;
+
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ return readb((void __iomem *)addr);
+ else
+ return inb(addr);
+}
+EXPORT_SYMBOL_GPL(ide_dma_sff_read_status);
+
/**
* ide_dma_host_set - Enable/disable DMA on a host
* @drive: drive to control
@@ -62,7 +73,7 @@
{
ide_hwif_t *hwif = drive->hwif;
u8 unit = drive->dn & 1;
- u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
if (on)
dma_stat |= (1 << (5 + unit));
@@ -200,7 +211,7 @@
outb(reading, hwif->dma_base + ATA_DMA_CMD);
/* read DMA status for INTR & ERROR flags */
- dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
/* clear INTR & ERROR flags */
if (mmio)
@@ -232,7 +243,7 @@
static int dma_timer_expiry(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
printk(KERN_WARNING "%s: %s: DMA status (0x%02x)\n",
drive->name, __func__, dma_stat);
@@ -305,7 +316,7 @@
}
/* get DMA status */
- dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
if (mmio)
/* clear the INTR & ERROR bits */
@@ -331,7 +342,7 @@
int ide_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
return (dma_stat & ATA_DMA_INTR) ? 1 : 0;
}
@@ -346,5 +357,6 @@
.dma_test_irq = ide_dma_test_irq,
.dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
EXPORT_SYMBOL_GPL(sff_dma_ops);