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path: root/drivers/ide/pci/atiixp.c
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Diffstat (limited to 'drivers/ide/pci/atiixp.c')
-rw-r--r--drivers/ide/pci/atiixp.c93
1 files changed, 11 insertions, 82 deletions
diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c
index 0eb97f021d3..446900da132 100644
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/atiixp.c Version 0.02 Jun 16 2007
+ * linux/drivers/ide/pci/atiixp.c Version 0.03 Aug 3 2007
*
* Copyright (C) 2003 ATI Inc. <hyu@ati.com>
* Copyright (C) 2004,2007 Bartlomiej Zolnierkiewicz
@@ -47,43 +47,6 @@ static int save_mdma_mode[4];
static DEFINE_SPINLOCK(atiixp_lock);
-/**
- * atiixp_dma_2_pio - return the PIO mode matching DMA
- * @xfer_rate: transfer speed
- *
- * Returns the nearest equivalent PIO timing for the PIO or DMA
- * mode requested by the controller.
- */
-
-static u8 atiixp_dma_2_pio(u8 xfer_rate) {
- switch(xfer_rate) {
- case XFER_UDMA_6:
- case XFER_UDMA_5:
- case XFER_UDMA_4:
- case XFER_UDMA_3:
- case XFER_UDMA_2:
- case XFER_UDMA_1:
- case XFER_UDMA_0:
- case XFER_MW_DMA_2:
- case XFER_PIO_4:
- return 4;
- case XFER_MW_DMA_1:
- case XFER_PIO_3:
- return 3;
- case XFER_SW_DMA_2:
- case XFER_PIO_2:
- return 2;
- case XFER_MW_DMA_0:
- case XFER_SW_DMA_1:
- case XFER_SW_DMA_0:
- case XFER_PIO_1:
- case XFER_PIO_0:
- case XFER_PIO_SLOW:
- default:
- return 0;
- }
-}
-
static void atiixp_dma_host_on(ide_drive_t *drive)
{
struct pci_dev *dev = drive->hwif->pci_dev;
@@ -169,7 +132,9 @@ static void atiixp_set_dma_mode(ide_drive_t *drive, const u8 speed)
int timing_shift = (drive->dn & 2) ? 16 : 0 + (drive->dn & 1) ? 0 : 8;
u32 tmp32;
u16 tmp16;
- u8 pio;
+
+ if (speed < XFER_MW_DMA_0)
+ return;
spin_lock_irqsave(&atiixp_lock, flags);
@@ -191,34 +156,6 @@ static void atiixp_set_dma_mode(ide_drive_t *drive, const u8 speed)
}
spin_unlock_irqrestore(&atiixp_lock, flags);
-
- if (speed >= XFER_SW_DMA_0)
- pio = atiixp_dma_2_pio(speed);
- else
- pio = speed - XFER_PIO_0;
-
- atiixp_set_pio_mode(drive, pio);
-}
-
-/**
- * atiixp_dma_check - set up an IDE device
- * @drive: IDE drive to configure
- *
- * Set up the ATIIXP interface for the best available speed on this
- * interface, preferring DMA to PIO.
- */
-
-static int atiixp_dma_check(ide_drive_t *drive)
-{
- drive->init_speed = 0;
-
- if (ide_tune_dma(drive))
- return 0;
-
- if (ide_use_fast_pio(drive))
- ide_set_max_pio(drive);
-
- return -1;
}
/**
@@ -238,7 +175,6 @@ static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
if (!hwif->irq)
hwif->irq = ch ? 15 : 14;
- hwif->autodma = 0;
hwif->set_pio_mode = &atiixp_set_pio_mode;
hwif->set_dma_mode = &atiixp_set_dma_mode;
hwif->drives[0].autotune = 1;
@@ -249,8 +185,7 @@ static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
hwif->atapi_dma = 1;
hwif->ultra_mask = 0x3f;
- hwif->mwdma_mask = 0x06;
- hwif->swdma_mask = 0x04;
+ hwif->mwdma_mask = 0x07;
pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
@@ -261,12 +196,6 @@ static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
hwif->dma_host_on = &atiixp_dma_host_on;
hwif->dma_host_off = &atiixp_dma_host_off;
- hwif->ide_dma_check = &atiixp_dma_check;
- if (!noautodma)
- hwif->autodma = 1;
-
- hwif->drives[1].autodma = hwif->autodma;
- hwif->drives[0].autodma = hwif->autodma;
}
@@ -303,12 +232,12 @@ static int __devinit atiixp_init_one(struct pci_dev *dev, const struct pci_devic
return ide_setup_pci_device(dev, &atiixp_pci_info[id->driver_data]);
}
-static struct pci_device_id atiixp_pci_tbl[] = {
- { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
- { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+static const struct pci_device_id atiixp_pci_tbl[] = {
+ { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP200_IDE), 0 },
+ { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP300_IDE), 0 },
+ { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), 0 },
+ { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), 1 },
+ { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP700_IDE), 0 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, atiixp_pci_tbl);