ide: add struct ide_dma_ops (take 3)
Add struct ide_dma_ops and convert core code + drivers to use it.
While at it:
* Drop "ide_" prefix from ->ide_dma_end and ->ide_dma_test_irq methods.
* Drop "ide_" "infixes" from DMA methods.
* au1xxx-ide.c:
- use auide_dma_{test_irq,end}() directly in auide_dma_timeout()
* pdc202xx_old.c:
- drop "old_" "infixes" from DMA methods
* siimage.c:
- add siimage_dma_test_irq() helper
- print SATA warning in siimage_init_one()
* Remove no longer needed ->init_hwif implementations.
v2:
* Changes based on review from Sergei:
- s/siimage_ide_dma_test_irq/siimage_dma_test_irq/
- s/drive->hwif/hwif/ in idefloppy_pc_intr().
- fix patch description w.r.t. au1xxx-ide changes
- fix au1xxx-ide build
- fix naming for cmd64*_dma_ops
- drop "ide_" and "old_" infixes
- s/hpt3xxx_dma_ops/hpt37x_dma_ops/
- s/hpt370x_dma_ops/hpt370_dma_ops/
- use correct DMA ops for HPT302/N, HPT371/N and HPT374
- s/it821x_smart_dma_ops/it821x_pass_through_dma_ops/
v3:
* Two bugs slipped in v2 (noticed by Sergei):
- use correct DMA ops for HPT374 (for real this time)
- handle HPT370/HPT370A properly
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 366bbc8..a00d259 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -102,7 +102,7 @@
{
u8 stat = 0, dma_stat = 0;
- dma_stat = HWIF(drive)->ide_dma_end(drive);
+ dma_stat = drive->hwif->dma_ops->dma_end(drive);
stat = ide_read_status(drive);
if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) {
@@ -394,7 +394,7 @@
drive->using_dma = 0;
ide_toggle_bounce(drive, 0);
- drive->hwif->dma_host_set(drive, 0);
+ drive->hwif->dma_ops->dma_host_set(drive, 0);
}
EXPORT_SYMBOL(ide_dma_off_quietly);
@@ -427,7 +427,7 @@
drive->using_dma = 1;
ide_toggle_bounce(drive, 1);
- drive->hwif->dma_host_set(drive, 1);
+ drive->hwif->dma_ops->dma_host_set(drive, 1);
}
#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
@@ -802,10 +802,10 @@
printk(KERN_ERR "%s: timeout waiting for DMA\n", drive->name);
- if (hwif->ide_dma_test_irq(drive))
+ if (hwif->dma_ops->dma_test_irq(drive))
return;
- hwif->ide_dma_end(drive);
+ hwif->dma_ops->dma_end(drive);
}
EXPORT_SYMBOL(ide_dma_timeout);
@@ -839,8 +839,21 @@
}
EXPORT_SYMBOL_GPL(ide_allocate_dma_engine);
-void ide_setup_dma(ide_hwif_t *hwif, unsigned long base)
+static struct ide_dma_ops sff_dma_ops = {
+ .dma_host_set = ide_dma_host_set,
+ .dma_setup = ide_dma_setup,
+ .dma_exec_cmd = ide_dma_exec_cmd,
+ .dma_start = ide_dma_start,
+ .dma_end = __ide_dma_end,
+ .dma_test_irq = __ide_dma_test_irq,
+ .dma_timeout = ide_dma_timeout,
+ .dma_lost_irq = ide_dma_lost_irq,
+};
+
+void ide_setup_dma(ide_hwif_t *hwif, unsigned long base,
+ const struct ide_port_info *d)
{
+ struct ide_dma_ops *dma_ops = d->dma_ops ? d->dma_ops : &sff_dma_ops;
hwif->dma_base = base;
if (!hwif->dma_command)
@@ -854,22 +867,24 @@
if (!hwif->dma_prdtable)
hwif->dma_prdtable = hwif->dma_base + 4;
- if (!hwif->dma_host_set)
- hwif->dma_host_set = &ide_dma_host_set;
- if (!hwif->dma_setup)
- hwif->dma_setup = &ide_dma_setup;
- if (!hwif->dma_exec_cmd)
- hwif->dma_exec_cmd = &ide_dma_exec_cmd;
- if (!hwif->dma_start)
- hwif->dma_start = &ide_dma_start;
- if (!hwif->ide_dma_end)
- hwif->ide_dma_end = &__ide_dma_end;
- if (!hwif->ide_dma_test_irq)
- hwif->ide_dma_test_irq = &__ide_dma_test_irq;
- if (!hwif->dma_timeout)
- hwif->dma_timeout = &ide_dma_timeout;
- if (!hwif->dma_lost_irq)
- hwif->dma_lost_irq = &ide_dma_lost_irq;
+ hwif->dma_ops = dma_ops;
+
+ if (dma_ops->dma_host_set == NULL)
+ dma_ops->dma_host_set = ide_dma_host_set;
+ if (dma_ops->dma_setup == NULL)
+ dma_ops->dma_setup = ide_dma_setup;
+ if (dma_ops->dma_exec_cmd == NULL)
+ dma_ops->dma_exec_cmd = ide_dma_exec_cmd;
+ if (dma_ops->dma_start == NULL)
+ dma_ops->dma_start = ide_dma_start;
+ if (dma_ops->dma_end == NULL)
+ dma_ops->dma_end = __ide_dma_end;
+ if (dma_ops->dma_test_irq == NULL)
+ dma_ops->dma_test_irq = __ide_dma_test_irq;
+ if (dma_ops->dma_timeout == NULL)
+ dma_ops->dma_timeout = ide_dma_timeout;
+ if (dma_ops->dma_lost_irq == NULL)
+ dma_ops->dma_lost_irq = ide_dma_lost_irq;
}
EXPORT_SYMBOL_GPL(ide_setup_dma);