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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 16:31:22 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 16:31:22 -0700
commit64fb98fc40738ae1a98bcea9ca3145b89fb71524 (patch)
tree24130f9c56b04638e91969d216db199652470a17 /drivers/ide/pci/sl82c105.c
parent5f47c7eac65a45e33d7fe390effe75ec5c74f8bf (diff)
parent89636af25d75d8672aea05d258be357d0dc4bd70 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: (23 commits) ide: add support for SCSI ioctls to ide-floppy ide: remove stale changelog from setup-pci.c ide: remove stale changelog/comments/TODO from ide.c ide-cris: handle PIO auto-tuning in tune_cris_ide() ide: add PIO masks ide: remove ide_find_best_pio_mode() ide: drop "PIO data" argument from ide_get_best_pio_mode() ide: ide_find_best_pio_mode() fixes (take 2) ide: add ide_pio_cycle_time() helper (take 2) sc1200: remove stale Power Management code ide: ide_start_power_step() fix WRT disabling DMA serverworks: fix DMA serverworks: always tune PIO ide: add ide_pci_device_t.host_flags (take 2) ide: add ide_dev_has_iordy() helper (take 4) ide: make ide_get_best_pio_mode() print info if overriding PIO mode siimage: PIO mode setup fixes (take 2) atiixp: PIO mode setup fixes ide: Stop mapping ROMs IDE: Remove references to dead ETRAX-related variables. ...
Diffstat (limited to 'drivers/ide/pci/sl82c105.c')
-rw-r--r--drivers/ide/pci/sl82c105.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index a7323d278c49..0947cab00595 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -52,12 +52,13 @@
* Convert a PIO mode and cycle time to the required on/off times
* for the interface. This has protection against runaway timings.
*/
-static unsigned int get_pio_timings(ide_pio_data_t *p)
+static unsigned int get_pio_timings(ide_drive_t *drive, u8 pio)
{
unsigned int cmd_on, cmd_off;
+ u8 iordy = 0;
- cmd_on = (ide_pio_timings[p->pio_mode].active_time + 29) / 30;
- cmd_off = (p->cycle_time - 30 * cmd_on + 29) / 30;
+ cmd_on = (ide_pio_timings[pio].active_time + 29) / 30;
+ cmd_off = (ide_pio_cycle_time(drive, pio) - 30 * cmd_on + 29) / 30;
if (cmd_on == 0)
cmd_on = 1;
@@ -65,7 +66,10 @@ static unsigned int get_pio_timings(ide_pio_data_t *p)
if (cmd_off == 0)
cmd_off = 1;
- return (cmd_on - 1) << 8 | (cmd_off - 1) | (p->use_iordy ? 0x40 : 0x00);
+ if (pio > 2 || ide_dev_has_iordy(drive->id))
+ iordy = 0x40;
+
+ return (cmd_on - 1) << 8 | (cmd_off - 1) | iordy;
}
/*
@@ -75,14 +79,13 @@ static u8 sl82c105_tune_pio(ide_drive_t *drive, u8 pio)
{
struct pci_dev *dev = HWIF(drive)->pci_dev;
int reg = 0x44 + drive->dn * 4;
- ide_pio_data_t p;
u16 drv_ctrl;
DBG(("sl82c105_tune_pio(drive:%s, pio:%u)\n", drive->name, pio));
- pio = ide_get_best_pio_mode(drive, pio, 5, &p);
+ pio = ide_get_best_pio_mode(drive, pio, 5);
- drv_ctrl = get_pio_timings(&p);
+ drv_ctrl = get_pio_timings(drive, pio);
/*
* Store the PIO timings so that we can restore them
@@ -101,7 +104,8 @@ static u8 sl82c105_tune_pio(ide_drive_t *drive, u8 pio)
}
printk(KERN_DEBUG "%s: selected %s (%dns) (%04X)\n", drive->name,
- ide_xfer_verbose(pio + XFER_PIO_0), p.cycle_time, drv_ctrl);
+ ide_xfer_verbose(pio + XFER_PIO_0),
+ ide_pio_cycle_time(drive, pio), drv_ctrl);
return pio;
}
@@ -449,10 +453,10 @@ static ide_pci_device_t sl82c105_chipset __devinitdata = {
.name = "W82C105",
.init_chipset = init_chipset_sl82c105,
.init_hwif = init_hwif_sl82c105,
- .channels = 2,
.autodma = NOAUTODMA,
.enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}},
.bootable = ON_BOARD,
+ .pio_mask = ATA_PIO5,
};
static int __devinit sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id)