From 438c470261036db25bfae15235ba99812e3dc763 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 20 Oct 2007 00:32:31 +0200 Subject: [PATCH] siimage: separate PATA and SATA methods * Split off sil_sata_udma_filter() from sil_udma_filter() and rename sil_udma_filter() to sil_pata_udma_filter(). * Rename siimage_busproc() to sil_sata_busproc(). * Rename siimage_reset_poll() to sil_sata_reset_poll() and in init_hwif_siimage() set ->reset_poll method only for SATA controllers. * Rename siimage_pre_reset() to sil_sata_pre_reset(), in init_hwif_siimage() set ->pre_reset method only for SATA controllers and remove redundant is_sata() call. * Add CONFIG_BLK_DEV_IDE_SATA #ifdef/#endif to pdev_is_sata() so compiler will know to throw out unused SATA code for CONFIG_BLK_DEV_IDE_SATA=n case (830 bytes saved on x86-32). * Bump driver version. Some minor cleanups while at it: * Convert sil_{pata,sata}_udma_filter() to use ATA_UDMA* defines. * In siimage_mmio_ide_dma_test_irq() move 'base' variable under 'if (SATA_ERROR_REG)' block. * Simplify sil_sata_reset_poll() a bit. * Cache is_sata() result in init_hwif_siimage() Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/siimage.c | 79 +++++++++++++++++++-------------------- 1 file changed, 39 insertions(+), 40 deletions(-) diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c index 689786df1ede..463bfda84265 100644 --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/siimage.c Version 1.17 Oct 18 2007 + * linux/drivers/ide/pci/siimage.c Version 1.18 Oct 18 2007 * * Copyright (C) 2001-2002 Andre Hedrick * Copyright (C) 2003 Red Hat @@ -57,8 +57,8 @@ static int pdev_is_sata(struct pci_dev *pdev) { - switch(pdev->device) - { +#ifdef CONFIG_BLK_DEV_IDE_SATA + switch(pdev->device) { case PCI_DEVICE_ID_SII_3112: case PCI_DEVICE_ID_SII_1210SA: return 1; @@ -66,9 +66,10 @@ static int pdev_is_sata(struct pci_dev *pdev) return 0; } BUG(); +#endif return 0; } - + /** * is_sata - check if hwif is SATA * @hwif: interface to check @@ -136,7 +137,7 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r) * SI3112 SATA controller life is a bit simpler. */ -static u8 sil_udma_filter(ide_drive_t *drive) +static u8 sil_pata_udma_filter(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; unsigned long base = (unsigned long) hwif->hwif_data; @@ -147,23 +148,23 @@ static u8 sil_udma_filter(ide_drive_t *drive) else pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc); - if (is_sata(hwif)) { - mask = strstr(drive->id->model, "Maxtor") ? 0x3f : 0x7f; - goto out; - } - if ((scsc & 0x30) == 0x10) /* 133 */ - mask = 0x7f; + mask = ATA_UDMA6; else if ((scsc & 0x30) == 0x20) /* 2xPCI */ - mask = 0x7f; + mask = ATA_UDMA6; else if ((scsc & 0x30) == 0x00) /* 100 */ - mask = 0x3f; + mask = ATA_UDMA5; else /* Disabled ? */ BUG(); -out: + return mask; } +static u8 sil_sata_udma_filter(ide_drive_t *drive) +{ + return strstr(drive->id->model, "Maxtor") ? ATA_UDMA5 : ATA_UDMA6; +} + /** * sil_set_pio_mode - set host controller for PIO mode * @drive: drive @@ -340,10 +341,11 @@ static int siimage_io_ide_dma_test_irq (ide_drive_t *drive) static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - unsigned long base = (unsigned long)hwif->hwif_data; unsigned long addr = siimage_selreg(hwif, 0x1); if (SATA_ERROR_REG) { + unsigned long base = (unsigned long)hwif->hwif_data; + u32 ext_stat = readl((void __iomem *)(base + 0x10)); u8 watchdog = 0; if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) { @@ -376,7 +378,7 @@ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive) } /** - * siimage_busproc - bus isolation ioctl + * sil_sata_busproc - bus isolation IOCTL * @drive: drive to isolate/restore * @state: bus state to set * @@ -384,8 +386,8 @@ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive) * SATA controller the work required is quite limited, we * just have to clean up the statistics */ - -static int siimage_busproc (ide_drive_t * drive, int state) + +static int sil_sata_busproc(ide_drive_t * drive, int state) { ide_hwif_t *hwif = HWIF(drive); u32 stat_config = 0; @@ -417,14 +419,14 @@ static int siimage_busproc (ide_drive_t * drive, int state) } /** - * siimage_reset_poll - wait for sata reset + * sil_sata_reset_poll - wait for SATA reset * @drive: drive we are resetting * * Poll the SATA phy and see whether it has come back from the dead * yet. */ - -static int siimage_reset_poll (ide_drive_t *drive) + +static int sil_sata_reset_poll(ide_drive_t *drive) { if (SATA_STATUS_REG) { ide_hwif_t *hwif = HWIF(drive); @@ -436,27 +438,22 @@ static int siimage_reset_poll (ide_drive_t *drive) HWGROUP(drive)->polling = 0; return ide_started; } - return 0; - } else { - return 0; } + + return 0; } /** - * siimage_pre_reset - reset hook + * sil_sata_pre_reset - reset hook * @drive: IDE device being reset * * For the SATA devices we need to handle recalibration/geometry * differently */ - -static void siimage_pre_reset (ide_drive_t *drive) -{ - if (drive->media != ide_disk) - return; - if (is_sata(HWIF(drive))) - { +static void sil_sata_pre_reset(ide_drive_t *drive) +{ + if (drive->media == ide_disk) { drive->special.b.set_geometry = 0; drive->special.b.recalibrate = 0; } @@ -502,7 +499,6 @@ static void siimage_reset (ide_drive_t *drive) drive->failures++; } } - } /** @@ -864,28 +860,31 @@ static u8 __devinit ata66_siimage(ide_hwif_t *hwif) static void __devinit init_hwif_siimage(ide_hwif_t *hwif) { + u8 sata = is_sata(hwif); + hwif->resetproc = &siimage_reset; hwif->set_pio_mode = &sil_set_pio_mode; hwif->set_dma_mode = &sil_set_dma_mode; - hwif->reset_poll = &siimage_reset_poll; - hwif->pre_reset = &siimage_pre_reset; - hwif->udma_filter = &sil_udma_filter; - if(is_sata(hwif)) { + if (sata) { static int first = 1; - hwif->busproc = &siimage_busproc; + hwif->busproc = &sil_sata_busproc; + hwif->reset_poll = &sil_sata_reset_poll; + hwif->pre_reset = &sil_sata_pre_reset; + hwif->udma_filter = &sil_sata_udma_filter; if (first) { printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n"); first = 0; } - } + } else + hwif->udma_filter = &sil_pata_udma_filter; if (hwif->dma_base == 0) return; - if (is_sata(hwif)) + if (sata) hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA; if (hwif->cbl != ATA_CBL_PATA40_SHORT) -- 2.20.1