diff options
Diffstat (limited to 'drivers/ide/ide-dma.c')
-rw-r--r-- | drivers/ide/ide-dma.c | 44 |
1 files changed, 18 insertions, 26 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index bc57ce6bf0b..428f7a8a00b 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -338,8 +338,10 @@ static int config_drive_for_dma (ide_drive_t *drive) ide_hwif_t *hwif = drive->hwif; struct hd_driveid *id = drive->id; - if (drive->media != ide_disk && hwif->atapi_dma == 0) - return 0; + if (drive->media != ide_disk) { + if (hwif->host_flags & IDE_HFLAG_NO_ATAPI_DMA) + return -1; + } /* * Enable DMA on any drive that has @@ -726,8 +728,10 @@ u8 ide_find_dma_mode(ide_drive_t *drive, u8 req_mode) int x, i; u8 mode = 0; - if (drive->media != ide_disk && hwif->atapi_dma == 0) - return 0; + if (drive->media != ide_disk) { + if (hwif->host_flags & IDE_HFLAG_NO_ATAPI_DMA) + return 0; + } for (i = 0; i < ARRAY_SIZE(xfer_mode_bases); i++) { if (req_mode < xfer_mode_bases[i]) @@ -897,10 +901,7 @@ void ide_dma_timeout (ide_drive_t *drive) EXPORT_SYMBOL(ide_dma_timeout); -/* - * Needed for allowing full modular support of ide-driver - */ -static int ide_release_dma_engine(ide_hwif_t *hwif) +static void ide_release_dma_engine(ide_hwif_t *hwif) { if (hwif->dmatable_cpu) { pci_free_consistent(hwif->pci_dev, @@ -909,7 +910,6 @@ static int ide_release_dma_engine(ide_hwif_t *hwif) hwif->dmatable_dma); hwif->dmatable_cpu = NULL; } - return 1; } static int ide_release_iomio_dma(ide_hwif_t *hwif) @@ -952,12 +952,6 @@ static int ide_mapped_mmio_dma(ide_hwif_t *hwif, unsigned long base, unsigned in { printk(KERN_INFO " %s: MMIO-DMA ", hwif->name); - hwif->dma_base = base; - - if(hwif->mate) - hwif->dma_master = (hwif->channel) ? hwif->mate->dma_base : base; - else - hwif->dma_master = base; return 0; } @@ -971,8 +965,6 @@ static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int port return 1; } - hwif->dma_base = base; - if (hwif->cds->extra) { hwif->extra_base = base + (hwif->channel ? 8 : 16); @@ -987,10 +979,6 @@ static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int port } } - if(hwif->mate) - hwif->dma_master = (hwif->channel) ? hwif->mate->dma_base:base; - else - hwif->dma_master = base; return 0; } @@ -1002,12 +990,9 @@ static int ide_dma_iobase(ide_hwif_t *hwif, unsigned long base, unsigned int por return ide_iomio_dma(hwif, base, ports); } -/* - * This can be called for a dynamically installed interface. Don't __init it - */ -void ide_setup_dma (ide_hwif_t *hwif, unsigned long dma_base, unsigned int num_ports) +void ide_setup_dma(ide_hwif_t *hwif, unsigned long base, unsigned num_ports) { - if (ide_dma_iobase(hwif, dma_base, num_ports)) + if (ide_dma_iobase(hwif, base, num_ports)) return; if (ide_allocate_dma_engine(hwif)) { @@ -1015,6 +1000,13 @@ void ide_setup_dma (ide_hwif_t *hwif, unsigned long dma_base, unsigned int num_p return; } + hwif->dma_base = base; + + if (hwif->mate) + hwif->dma_master = hwif->channel ? hwif->mate->dma_base : base; + else + hwif->dma_master = base; + if (!(hwif->dma_command)) hwif->dma_command = hwif->dma_base; if (!(hwif->dma_vendor1)) |