From 26bcb879c03254545a19c6700fe5bcef6f21e7b1 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Thu, 11 Oct 2007 23:54:00 +0200 Subject: 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 Cc: Jeff Garzik Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/sc1200.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/ide/pci/sc1200.c') diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c index 059071cd2d4..f9f5ed90657 100644 --- a/drivers/ide/pci/sc1200.c +++ b/drivers/ide/pci/sc1200.c @@ -272,19 +272,20 @@ static int sc1200_ide_dma_end (ide_drive_t *drive) } /* - * sc1200_tuneproc() handles selection/setting of PIO modes + * sc1200_set_pio_mode() handles setting of PIO modes * for both the chipset and drive. * * All existing BIOSs for this chipset guarantee that all drives * will have valid default PIO timings set up before we get here. */ -static void sc1200_tuneproc (ide_drive_t *drive, byte pio) /* mode=255 means "autotune" */ + +static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); int mode = -1; /* - * bad abuse of ->tuneproc interface + * bad abuse of ->set_pio_mode interface */ switch (pio) { case 200: mode = XFER_UDMA_0; break; @@ -302,9 +303,6 @@ static void sc1200_tuneproc (ide_drive_t *drive, byte pio) /* mode=255 means "au return; } - pio = ide_get_best_pio_mode(drive, pio, 4); - printk("SC1200: %s: setting PIO mode%d\n", drive->name, pio); - if (sc1200_set_xfer_mode(drive, XFER_PIO_0 + pio) == 0) sc1200_tunepio(drive, pio); } @@ -420,7 +418,8 @@ static void __devinit init_hwif_sc1200 (ide_hwif_t *hwif) hwif->ide_dma_end = &sc1200_ide_dma_end; if (!noautodma) hwif->autodma = 1; - hwif->tuneproc = &sc1200_tuneproc; + + hwif->set_pio_mode = &sc1200_set_pio_mode; hwif->speedproc = &sc1200_tune_chipset; } hwif->atapi_dma = 1; @@ -436,6 +435,7 @@ static ide_pci_device_t sc1200_chipset __devinitdata = { .init_hwif = init_hwif_sc1200, .autodma = AUTODMA, .bootable = ON_BOARD, + .host_flags = IDE_HFLAG_ABUSE_DMA_MODES, .pio_mask = ATA_PIO4, }; -- cgit v1.2.3