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/amd74xx.c b/drivers/ide/pci/amd74xx.c
index 9abbde3..1088ba8 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -266,16 +266,12 @@
}
/*
- * amd74xx_tune_drive() is a callback from upper layers for
- * PIO-only tuning.
+ * amd_set_pio_mode() is a callback from upper layers for PIO-only tuning.
*/
-static void amd74xx_tune_drive(ide_drive_t *drive, u8 pio)
+static void amd_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- if (pio == 255)
- pio = ide_get_best_pio_mode(drive, 255, 5);
-
- amd_set_drive(drive, XFER_PIO_0 + min_t(byte, pio, 5));
+ amd_set_drive(drive, XFER_PIO_0 + pio);
}
static int amd74xx_ide_dma_check(ide_drive_t *drive)
@@ -283,7 +279,7 @@
u8 speed = ide_max_dma_mode(drive);
if (speed == 0) {
- amd74xx_tune_drive(drive, 255);
+ ide_set_max_pio(drive);
return -1;
}
@@ -409,7 +405,7 @@
hwif->autodma = 0;
- hwif->tuneproc = &amd74xx_tune_drive;
+ hwif->set_pio_mode = &amd_set_pio_mode;
hwif->speedproc = &amd_set_drive;
for (i = 0; i < 2; i++) {