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path: root/drivers/ide/pci
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-rw-r--r--drivers/ide/pci/cs5520.c29
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
index d1a91bcb5b29..78058ca2ce76 100644
--- a/drivers/ide/pci/cs5520.c
+++ b/drivers/ide/pci/cs5520.c
@@ -71,7 +71,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio)
71 ide_hwif_t *hwif = HWIF(drive); 71 ide_hwif_t *hwif = HWIF(drive);
72 struct pci_dev *pdev = hwif->pci_dev; 72 struct pci_dev *pdev = hwif->pci_dev;
73 int controller = drive->dn > 1 ? 1 : 0; 73 int controller = drive->dn > 1 ? 1 : 0;
74 u8 reg;
75 74
76 /* FIXME: if DMA = 1 do we need to set the DMA bit here ? */ 75 /* FIXME: if DMA = 1 do we need to set the DMA bit here ? */
77 76
@@ -91,11 +90,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio)
91 pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1), 90 pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1),
92 (cs5520_pio_clocks[pio].recovery << 4) | 91 (cs5520_pio_clocks[pio].recovery << 4) |
93 (cs5520_pio_clocks[pio].assert)); 92 (cs5520_pio_clocks[pio].assert));
94
95 /* Set the DMA enable/disable flag */
96 reg = inb(hwif->dma_base + 0x02 + 8*controller);
97 reg |= 1<<((drive->dn&1)+5);
98 outb(reg, hwif->dma_base + 0x02 + 8*controller);
99} 93}
100 94
101static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed) 95static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed)
@@ -109,13 +103,23 @@ static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed)
109 * We wrap the DMA activate to set the vdma flag. This is needed 103 * We wrap the DMA activate to set the vdma flag. This is needed
110 * so that the IDE DMA layer issues PIO not DMA commands over the 104 * so that the IDE DMA layer issues PIO not DMA commands over the
111 * DMA channel 105 * DMA channel
106 *
107 * ATAPI is harder so disable it for now using IDE_HFLAG_NO_ATAPI_DMA
112 */ 108 */
113 109
114static int cs5520_dma_on(ide_drive_t *drive) 110static void cs5520_dma_host_on(ide_drive_t *drive)
115{ 111{
116 /* ATAPI is harder so leave it for now */ 112 if (drive->using_dma)
117 drive->vdma = 1; 113 drive->vdma = 1;
118 return 0; 114
115 ide_dma_host_on(drive);
116}
117
118static void cs5520_dma_host_off(ide_drive_t *drive)
119{
120 drive->vdma = 0;
121
122 ide_dma_host_off(drive);
119} 123}
120 124
121static void __devinit init_hwif_cs5520(ide_hwif_t *hwif) 125static void __devinit init_hwif_cs5520(ide_hwif_t *hwif)
@@ -126,7 +130,8 @@ static void __devinit init_hwif_cs5520(ide_hwif_t *hwif)
126 if (hwif->dma_base == 0) 130 if (hwif->dma_base == 0)
127 return; 131 return;
128 132
129 hwif->ide_dma_on = &cs5520_dma_on; 133 hwif->dma_host_on = &cs5520_dma_host_on;
134 hwif->dma_host_off = &cs5520_dma_host_off;
130} 135}
131 136
132#define DECLARE_CS_DEV(name_str) \ 137#define DECLARE_CS_DEV(name_str) \