From 485efc6cf507eae2b8e83b56e179c8fa3980641a Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 20 Jul 2007 01:11:54 +0200 Subject: [PATCH] atiixp: PIO mode setup fixes * Split off exisiting atiixp_tuneproc() into atiixp_tune_pio() and then add setting device PIO mode to atiixp_tuneproc(). * Add missing ide_get_best_pio_mode() call to atiixp_tuneproc() so "pio" == 255 (autotune) is handled correctly and "pio" values > 4 && < 255 are filtered to PIO4 (previously "pio" == 5 could result in wrong timings being used and "pio" values > 4 && < 255 in an OOPS). * Handle PIO modes early in atiixp_speedproc() so save_mdma_mode[] doesn't get cleared. * In atiixp_dma_check(): - fix max_mode argument for ide_get_best_pio_mode() - don't call atiixp_dma_2_pio() so PIO1 doesn't get remapped to PIO0 - use atiixp_tuneproc() instead of atiixp_speedproc() * Bump driver version. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/atiixp.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c index 2761510309..bfdf086f45 100644 --- a/drivers/ide/pci/atiixp.c +++ b/drivers/ide/pci/atiixp.c @@ -1,9 +1,8 @@ /* - * linux/drivers/ide/pci/atiixp.c Version 0.01-bart2 Feb. 26, 2004 + * linux/drivers/ide/pci/atiixp.c Version 0.02 Jun 16 2007 * * Copyright (C) 2003 ATI Inc. - * Copyright (C) 2004 Bartlomiej Zolnierkiewicz - * + * Copyright (C) 2004,2007 Bartlomiej Zolnierkiewicz */ #include @@ -123,14 +122,14 @@ static void atiixp_dma_host_off(ide_drive_t *drive) } /** - * atiixp_tune_drive - tune a drive attached to a ATIIXP + * atiixp_tune_pio - tune a drive attached to a ATIIXP * @drive: drive to tune * @pio: desired PIO mode * * Set the interface PIO mode. */ -static void atiixp_tuneproc(ide_drive_t *drive, u8 pio) +static void atiixp_tune_pio(ide_drive_t *drive, u8 pio) { struct pci_dev *dev = drive->hwif->pci_dev; unsigned long flags; @@ -154,6 +153,13 @@ static void atiixp_tuneproc(ide_drive_t *drive, u8 pio) spin_unlock_irqrestore(&atiixp_lock, flags); } +static void atiixp_tuneproc(ide_drive_t *drive, u8 pio) +{ + pio = ide_get_best_pio_mode(drive, pio, 4, NULL); + atiixp_tune_pio(drive, pio); + (void)ide_config_drive_speed(drive, XFER_PIO_0 + pio); +} + /** * atiixp_tune_chipset - tune a ATIIXP interface * @drive: IDE drive to tune @@ -175,6 +181,11 @@ static int atiixp_speedproc(ide_drive_t *drive, u8 xferspeed) speed = ide_rate_filter(drive, xferspeed); + if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) { + atiixp_tune_pio(drive, speed - XFER_PIO_0); + return ide_config_drive_speed(drive, speed); + } + spin_lock_irqsave(&atiixp_lock, flags); save_mdma_mode[drive->dn] = 0; @@ -201,7 +212,7 @@ static int atiixp_speedproc(ide_drive_t *drive, u8 xferspeed) else pio = speed - XFER_PIO_0; - atiixp_tuneproc(drive, pio); + atiixp_tune_pio(drive, pio); return ide_config_drive_speed(drive, speed); } @@ -216,18 +227,13 @@ static int atiixp_speedproc(ide_drive_t *drive, u8 xferspeed) static int atiixp_dma_check(ide_drive_t *drive) { - u8 tspeed, speed; - drive->init_speed = 0; if (ide_tune_dma(drive)) return 0; - if (ide_use_fast_pio(drive)) { - tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL); - speed = atiixp_dma_2_pio(XFER_PIO_0 + tspeed) + XFER_PIO_0; - atiixp_speedproc(drive, speed); - } + if (ide_use_fast_pio(drive)) + atiixp_tuneproc(drive, 255); return -1; } -- 2.39.5