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ide: export ide_allocate_dma_engine()

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Export ide_allocate_dma_engine() and use it in trm290 host driver.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-04-26 22:25:21 +02:00
parent 23658f8af3
commit b8e73fba60
3 changed files with 6 additions and 9 deletions
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3
drivers/ide/ide-dma.c
View File

@ -821,7 +821,7 @@ void ide_release_dma_engine(ide_hwif_t *hwif)
}
}
static int ide_allocate_dma_engine(ide_hwif_t *hwif)
int ide_allocate_dma_engine(ide_hwif_t *hwif)
{
struct pci_dev *pdev = to_pci_dev(hwif->dev);
@ -837,6 +837,7 @@ static int ide_allocate_dma_engine(ide_hwif_t *hwif)
return 1;
}
EXPORT_SYMBOL_GPL(ide_allocate_dma_engine);
void ide_setup_dma(ide_hwif_t *hwif, unsigned long base)
{

9
drivers/ide/pci/trm290.c
View File

@ -254,16 +254,11 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
hwif->config_data = cfg_base;
hwif->dma_base = (cfg_base + 4) ^ (hwif->channel ? 0x80 : 0);
printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx",
printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n",
hwif->name, hwif->dma_base, hwif->dma_base + 3);
hwif->dmatable_cpu = pci_alloc_consistent(dev, PRD_ENTRIES * PRD_BYTES,
&hwif->dmatable_dma);
if (!hwif->dmatable_cpu) {
printk(KERN_CONT " -- Error, unable to allocate DMA table.\n");
if (ide_allocate_dma_engine(hwif))
return;
}
printk(KERN_CONT "\n");
local_irq_save(flags);
/* put config reg into first byte of hwif->select_data */

3
include/linux/ide.h
View File

@ -1155,7 +1155,8 @@ void ide_destroy_dmatable(ide_drive_t *);
#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
extern int ide_build_dmatable(ide_drive_t *, struct request *);
extern void ide_release_dma_engine(ide_hwif_t *);
int ide_allocate_dma_engine(ide_hwif_t *);
void ide_release_dma_engine(ide_hwif_t *);
extern void ide_setup_dma(ide_hwif_t *, unsigned long);
void ide_dma_host_set(ide_drive_t *, int);