#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
+#include <linux/scatterlist.h>
#include <linux/ioc4.h>
#include <asm/io.h>
#include <linux/ide.h>
+#define DRV_NAME "SGIIOC4"
+
/* IOC4 Specific Definitions */
#define IOC4_CMD_OFFSET 0x100
#define IOC4_CTRL_OFFSET 0x120
drive->hwif->dma_host_off(drive);
}
-static int sgiioc4_ide_dma_check(ide_drive_t *drive)
+static void sgiioc4_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- /* FIXME: check for available DMA modes */
- if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) {
- printk(KERN_WARNING "%s: couldn't set MWDMA2 mode, "
- "using PIO instead\n", drive->name);
- return -1;
- } else
- return 0;
}
/* returns 1 if dma irq issued, 0 otherwise */
}
/* Creates a dma map for the scatter-gather list entries */
-static void __devinit
+static int __devinit
ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
{
void __iomem *virt_dma_base;
"ALREADY in use\n",
__FUNCTION__, hwif->name, (void *) dma_base,
(void *) dma_base + num_ports - 1);
- goto dma_alloc_failure;
+ return -1;
}
virt_dma_base = ioremap(dma_base, num_ports);
if (pad) {
ide_set_hwifdata(hwif, pad);
- return;
+ return 0;
}
pci_free_consistent(hwif->pci_dev,
dma_remap_failure:
release_mem_region(dma_base, num_ports);
-dma_alloc_failure:
- /* Disable DMA because we couldnot allocate any DMA maps */
- hwif->autodma = 0;
- hwif->atapi_dma = 0;
+ return -1;
}
/* Initializes the IOC4 DMA Engine */
}
}
- sg++;
+ sg = sg_next(sg);
i--;
}
ide_init_sgiioc4(ide_hwif_t * hwif)
{
hwif->mmio = 1;
- hwif->autodma = 1;
- hwif->atapi_dma = 1;
- hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
- hwif->mwdma_mask = 0x2; /* Multimode-2 DMA */
- hwif->swdma_mask = 0x2;
- hwif->tuneproc = NULL; /* Sets timing for PIO mode */
- hwif->speedproc = NULL; /* Sets timing for DMA &/or PIO modes */
+ hwif->pio_mask = 0x00;
+ hwif->set_pio_mode = NULL; /* Sets timing for PIO mode */
+ hwif->set_dma_mode = &sgiioc4_set_dma_mode;
hwif->selectproc = NULL;/* Use the default routine to select drive */
hwif->reset_poll = NULL;/* No HBA specific reset_poll needed */
hwif->pre_reset = NULL; /* No HBA specific pre_set needed */
hwif->quirkproc = NULL;
hwif->busproc = NULL;
+ hwif->INB = &sgiioc4_INB;
+
+ if (hwif->dma_base == 0)
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->mwdma_mask = 0x04;
+
hwif->dma_setup = &sgiioc4_ide_dma_setup;
hwif->dma_start = &sgiioc4_ide_dma_start;
hwif->ide_dma_end = &sgiioc4_ide_dma_end;
- hwif->ide_dma_check = &sgiioc4_ide_dma_check;
hwif->ide_dma_on = &sgiioc4_ide_dma_on;
hwif->dma_off_quietly = &sgiioc4_dma_off_quietly;
hwif->ide_dma_test_irq = &sgiioc4_ide_dma_test_irq;
hwif->dma_host_off = &sgiioc4_dma_host_off;
hwif->dma_lost_irq = &sgiioc4_dma_lost_irq;
hwif->dma_timeout = &ide_dma_timeout;
-
- hwif->INB = &sgiioc4_INB;
}
static int __devinit
-sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
+sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
{
unsigned long cmd_base, dma_base, irqport;
unsigned long bar0, cmd_phys_base, ctl;
break;
}
if (h == MAX_HWIFS) {
- printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", d->name);
+ printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n",
+ DRV_NAME);
return -ENOMEM;
}
virt_base = ioremap(bar0, pci_resource_len(dev, 0));
if (virt_base == NULL) {
printk(KERN_ERR "%s: Unable to remap BAR 0 address: 0x%lx\n",
- d->name, bar0);
+ DRV_NAME, bar0);
return -ENOMEM;
}
cmd_base = (unsigned long) virt_base + IOC4_CMD_OFFSET;
hwif->chipset = ide_pci;
hwif->pci_dev = dev;
hwif->channel = 0; /* Single Channel chip */
- hwif->cds = (struct ide_pci_device_s *) d;
hwif->gendev.parent = &dev->dev;/* setup proper ancestral information */
/* The IOC4 uses MMIO rather than Port IO. */
/* Initializing chipset IRQ Registers */
writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4));
- ide_init_sgiioc4(hwif);
+ hwif->autodma = 0;
- if (dma_base)
- ide_dma_sgiioc4(hwif, dma_base);
- else
+ if (dma_base && ide_dma_sgiioc4(hwif, dma_base) == 0) {
+ hwif->autodma = 1;
+ hwif->drives[1].autodma = hwif->drives[0].autodma = 1;
+ } else
printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n",
- hwif->name, d->name);
+ hwif->name, DRV_NAME);
+
+ ide_init_sgiioc4(hwif);
if (probe_hwif_init(hwif))
return -EIO;
}
static unsigned int __devinit
-pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d)
+pci_init_sgiioc4(struct pci_dev *dev)
{
unsigned int class_rev;
int ret;
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xff;
printk(KERN_INFO "%s: IDE controller at PCI slot %s, revision %d\n",
- d->name, pci_name(dev), class_rev);
+ DRV_NAME, pci_name(dev), class_rev);
if (class_rev < IOC4_SUPPORTED_FIRMWARE_REV) {
printk(KERN_ERR "Skipping %s IDE controller in slot %s: "
- "firmware is obsolete - please upgrade to revision"
- "46 or higher\n", d->name, pci_name(dev));
+ "firmware is obsolete - please upgrade to "
+ "revision46 or higher\n",
+ DRV_NAME, pci_name(dev));
ret = -EAGAIN;
goto out;
}
- ret = sgiioc4_ide_setup_pci_device(dev, d);
+ ret = sgiioc4_ide_setup_pci_device(dev);
out:
return ret;
}
-static ide_pci_device_t sgiioc4_chipset __devinitdata = {
- /* Channel 0 */
- .name = "SGIIOC4",
- .init_hwif = ide_init_sgiioc4,
- .init_dma = ide_dma_sgiioc4,
- .channels = 1,
- .autodma = AUTODMA,
- /* SGI IOC4 doesn't have enablebits. */
- .bootable = ON_BOARD,
-};
-
int
ioc4_ide_attach_one(struct ioc4_driver_data *idd)
{
if (idd->idd_variant == IOC4_VARIANT_PCI_RT)
return 0;
- return pci_init_sgiioc4(idd->idd_pdev, &sgiioc4_chipset);
+ return pci_init_sgiioc4(idd->idd_pdev);
}
static struct ioc4_submodule ioc4_ide_submodule = {
projects / linux-2.6-block.git / blobdiff