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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:54:00 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:54:00 +0200 |
| commit | 26bcb879c03254545a19c6700fe5bcef6f21e7b1 (patch) | |
| tree | dc35f1a7d7860fe0de268ff92189ff0884b689d3 /drivers/ide/pci/scc_pata.c | |
| parent | 842c19ad6fc0dbd9ac9d2f8527466201802934cf (diff) | |
| download | lwn-26bcb879c03254545a19c6700fe5bcef6f21e7b1.tar.gz lwn-26bcb879c03254545a19c6700fe5bcef6f21e7b1.zip | |
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>
Diffstat (limited to 'drivers/ide/pci/scc_pata.c')
| -rw-r--r-- | drivers/ide/pci/scc_pata.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index a19687caf65a..3505d57eda18 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -221,9 +221,8 @@ static void scc_tune_pio(ide_drive_t *drive, const u8 pio) out_be32((void __iomem *)pioct_port, reg); } -static void scc_tuneproc(ide_drive_t *drive, u8 pio) +static void scc_set_pio_mode(ide_drive_t *drive, const u8 pio) { - pio = ide_get_best_pio_mode(drive, pio, 4); scc_tune_pio(drive, pio); ide_config_drive_speed(drive, XFER_PIO_0 + pio); } @@ -316,7 +315,7 @@ static int scc_config_drive_for_dma(ide_drive_t *drive) return 0; if (ide_use_fast_pio(drive)) - scc_tuneproc(drive, 255); + ide_set_max_pio(drive); return -1; } @@ -717,7 +716,7 @@ static void __devinit init_hwif_scc(ide_hwif_t *hwif) hwif->dma_setup = scc_dma_setup; hwif->ide_dma_end = scc_ide_dma_end; hwif->speedproc = scc_tune_chipset; - hwif->tuneproc = scc_tuneproc; + hwif->set_pio_mode = scc_set_pio_mode; hwif->ide_dma_check = scc_config_drive_for_dma; hwif->ide_dma_test_irq = scc_dma_test_irq; hwif->udma_filter = scc_udma_filter; |