ide: add ide_set{_max}_pio() (take 4)
* Add IDE_HFLAG_ABUSE_{PREFETCH,FAST_DEVSEL,DMA_MODES} flags
and set them in ht6560, cmd640, cmd64x and sc1200 host drivers.
* Add set_pio_mode_abuse() for checking if host driver has a non-standard
->tuneproc() implementation and use it in do_special().
* Add ide_set_pio() for setting PIO mode (it uses hwif->pio_mask to find
the maximum PIO mode supported by the host), also add ide_set_max_pio()
wrapper for ide_set_pio() to use for auto-tuning. Convert users of
->tuneproc to use ide_set{_max}_pio() where possible. This leaves only
do_special(), set_using_pio(), ide_hwif_restore() and ide_set_pio() as
a direct users of ->tuneproc.
* Remove no longer needed ide_get_best_pio_mode() calls and printk-s
reporting PIO mode selected from ->tuneproc implementations.
* Rename ->tuneproc hook to ->set_pio_mode and make 'pio' argument const.
* Remove stale comment from ide_config_drive_speed().
v2:
* Fix "ata_" prefix (Noticed by Jeff).
v3:
* Minor cleanups/fixups per Sergei's suggestions.
v4:
* Fix compile problem in drivers/ide/pci/cmd640.c
(Noticed by Andrew Morton).
* Improve some ->set_pio_mode comments.
Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c
index e542577..e23b9cf 100644
--- a/drivers/ide/pci/tc86c001.c
+++ b/drivers/ide/pci/tc86c001.c
@@ -43,9 +43,8 @@
return ide_config_drive_speed(drive, speed);
}
-static void tc86c001_tune_drive(ide_drive_t *drive, u8 pio)
+static void tc86c001_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- pio = ide_get_best_pio_mode(drive, pio, 4);
(void) tc86c001_tune_chipset(drive, XFER_PIO_0 + pio);
}
@@ -171,7 +170,7 @@
return 0;
if (ide_use_fast_pio(drive))
- tc86c001_tune_drive(drive, 255);
+ ide_set_max_pio(drive);
return -1;
}
@@ -193,7 +192,7 @@
/* Store the system control register base for convenience... */
hwif->config_data = sc_base;
- hwif->tuneproc = &tc86c001_tune_drive;
+ hwif->set_pio_mode = &tc86c001_set_pio_mode;
hwif->speedproc = &tc86c001_tune_chipset;
hwif->busproc = &tc86c001_busproc;