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/cy82c693.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) (limited to 'drivers/ide/pci/cy82c693.c') diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c index daa36fcbc8e..dc278025d31 100644 --- a/drivers/ide/pci/cy82c693.c +++ b/drivers/ide/pci/cy82c693.c @@ -97,9 +97,6 @@ #define CY82_INDEX_CHANNEL1 0x31 #define CY82_INDEX_TIMEOUT 0x32 -/* the max PIO mode - from datasheet */ -#define CY82C693_MAX_PIO 4 - /* the min and max PCI bus speed in MHz - from datasheet */ #define CY82C963_MIN_BUS_SPEED 25 #define CY82C963_MAX_BUS_SPEED 33 @@ -148,9 +145,6 @@ static void compute_clocks (u8 pio, pio_clocks_t *p_pclk) * so you can play with the idebus=xx parameter */ - if (pio > CY82C693_MAX_PIO) - pio = CY82C693_MAX_PIO; - /* let's calc the address setup time clocks */ p_pclk->address_time = (u8)calc_clk(ide_pio_timings[pio].setup_time, bus_speed); @@ -269,10 +263,7 @@ static int cy82c693_ide_dma_on (ide_drive_t *drive) return __ide_dma_on(drive); } -/* - * tune ide drive - set PIO mode - */ -static void cy82c693_tune_drive (ide_drive_t *drive, u8 pio) +static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; @@ -329,13 +320,6 @@ static void cy82c693_tune_drive (ide_drive_t *drive, u8 pio) addrCtrl, pclk.time_16r, pclk.time_16w, pclk.time_8); #endif /* CY82C693_DEBUG_LOGS */ - /* first let's calc the pio modes */ - pio = ide_get_best_pio_mode(drive, pio, CY82C693_MAX_PIO); - -#if CY82C693_DEBUG_INFO - printk (KERN_INFO "%s: Selected PIO mode %d\n", drive->name, pio); -#endif /* CY82C693_DEBUG_INFO */ - /* let's calc the values for this PIO mode */ compute_clocks(pio, &pclk); @@ -447,7 +431,7 @@ static void __devinit init_hwif_cy82c693(ide_hwif_t *hwif) hwif->autodma = 0; hwif->chipset = ide_cy82c693; - hwif->tuneproc = &cy82c693_tune_drive; + hwif->set_pio_mode = &cy82c693_set_pio_mode; if (!hwif->dma_base) { hwif->drives[0].autotune = 1; -- cgit v1.2.3-18-g5258