Skip to content

Commit

Permalink
cmd64x: implement test_irq() method
Browse files Browse the repository at this point in the history 
Convert the driver's two dma_test_irq() methods into test_irq() methods. The
driver will now use the standard dma_test_irq() method implementation which
allows to remove 'cmd54x_dma_ops' and 'cmd648_dma_ops' that become identical
to 'sff_dma_ops'...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  • Loading branch information
Sergei Shtylyov authored and Bartlomiej Zolnierkiewicz committed Jun 15, 2009
1 parent 87441db commit 628df2f
Showing 1 changed file with 12 additions and 57 deletions.
69 changes: 12 additions & 57 deletions drivers/ide/cmd64x.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -254,53 +254,34 @@ static void cmd64x_clear_irq(ide_drive_t *drive)
(void) pci_write_config_byte(dev, irq_reg, irq_stat | irq_mask);
}

static int cmd648_dma_test_irq(ide_drive_t *drive)
static int cmd648_test_irq(ide_hwif_t *hwif)
{
ide_hwif_t *hwif = drive->hwif;
unsigned long base = hwif->dma_base - (hwif->channel * 8);
struct pci_dev *dev = to_pci_dev(hwif->dev);
unsigned long base = pci_resource_start(dev, 4);
u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 :
MRDMODE_INTR_CH0;
u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
u8 mrdmode = inb(base + 1);

#ifdef DEBUG
printk("%s: dma_stat: 0x%02x mrdmode: 0x%02x irq_mask: 0x%02x\n",
drive->name, dma_stat, mrdmode, irq_mask);
#endif
if (!(mrdmode & irq_mask))
return 0;
pr_debug("%s: mrdmode: 0x%02x irq_mask: 0x%02x\n",
hwif->name, mrdmode, irq_mask);

/* return 1 if INTR asserted */
if (dma_stat & 4)
return 1;

return 0;
return (mrdmode & irq_mask) ? 1 : 0;
}

static int cmd64x_dma_test_irq(ide_drive_t *drive)
static int cmd64x_test_irq(ide_hwif_t *hwif)
{
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
int irq_reg = hwif->channel ? ARTTIM23 : CFR;
u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 :
CFR_INTR_CH0;
u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
u8 irq_stat = 0;

(void) pci_read_config_byte(dev, irq_reg, &irq_stat);

#ifdef DEBUG
printk("%s: dma_stat: 0x%02x irq_stat: 0x%02x irq_mask: 0x%02x\n",
drive->name, dma_stat, irq_stat, irq_mask);
#endif
if (!(irq_stat & irq_mask))
return 0;

/* return 1 if INTR asserted */
if (dma_stat & 4)
return 1;
pr_debug("%s: irq_stat: 0x%02x irq_mask: 0x%02x\n",
hwif->name, irq_stat, irq_mask);

return 0;
return (irq_stat & irq_mask) ? 1 : 0;
}

/*
Expand Down Expand Up @@ -366,27 +347,18 @@ static const struct ide_port_ops cmd64x_port_ops = {
.set_pio_mode = cmd64x_set_pio_mode,
.set_dma_mode = cmd64x_set_dma_mode,
.clear_irq = cmd64x_clear_irq,
.test_irq = cmd64x_test_irq,
.cable_detect = cmd64x_cable_detect,
};

static const struct ide_port_ops cmd648_port_ops = {
.set_pio_mode = cmd64x_set_pio_mode,
.set_dma_mode = cmd64x_set_dma_mode,
.clear_irq = cmd648_clear_irq,
.test_irq = cmd648_test_irq,
.cable_detect = cmd64x_cable_detect,
};

static const struct ide_dma_ops cmd64x_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_start = ide_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = cmd64x_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_sff_read_status = ide_dma_sff_read_status,
};

static const struct ide_dma_ops cmd646_rev1_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
Expand All @@ -398,24 +370,12 @@ static const struct ide_dma_ops cmd646_rev1_dma_ops = {
.dma_sff_read_status = ide_dma_sff_read_status,
};

static const struct ide_dma_ops cmd648_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_start = ide_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = cmd648_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_sff_read_status = ide_dma_sff_read_status,
};

static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
{ /* 0: CMD643 */
.name = DRV_NAME,
.init_chipset = init_chipset_cmd64x,
.enablebits = {{0x00,0x00,0x00}, {0x51,0x08,0x08}},
.port_ops = &cmd64x_port_ops,
.dma_ops = &cmd64x_dma_ops,
.host_flags = IDE_HFLAG_CLEAR_SIMPLEX |
IDE_HFLAG_ABUSE_PREFETCH,
.pio_mask = ATA_PIO5,
Expand All @@ -427,7 +387,6 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
.init_chipset = init_chipset_cmd64x,
.enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
.port_ops = &cmd648_port_ops,
.dma_ops = &cmd648_dma_ops,
.host_flags = IDE_HFLAG_SERIALIZE |
IDE_HFLAG_ABUSE_PREFETCH,
.pio_mask = ATA_PIO5,
Expand All @@ -439,7 +398,6 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
.init_chipset = init_chipset_cmd64x,
.enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
.port_ops = &cmd648_port_ops,
.dma_ops = &cmd648_dma_ops,
.host_flags = IDE_HFLAG_ABUSE_PREFETCH,
.pio_mask = ATA_PIO5,
.mwdma_mask = ATA_MWDMA2,
Expand All @@ -450,7 +408,6 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
.init_chipset = init_chipset_cmd64x,
.enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
.port_ops = &cmd648_port_ops,
.dma_ops = &cmd648_dma_ops,
.host_flags = IDE_HFLAG_ABUSE_PREFETCH,
.pio_mask = ATA_PIO5,
.mwdma_mask = ATA_MWDMA2,
Expand Down Expand Up @@ -490,8 +447,6 @@ static int __devinit cmd64x_init_one(struct pci_dev *dev, const struct pci_devic
d.port_ops = &cmd64x_port_ops;
if (dev->revision == 1)
d.dma_ops = &cmd646_rev1_dma_ops;
else
d.dma_ops = &cmd64x_dma_ops;
}
}
}
Expand Down

0 comments on commit 628df2f

Please sign in to comment.