Commit 438c4702 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

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: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent b1e03865

drivers/ide/pci/siimage.c

+39 −40
Original line number Diff line number Diff line 
/*

 * 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 <andre@linux-ide.org>

 * Copyright (C) 2003		Red Hat <alan@redhat.com>
@@ -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;
@@ -66,6 +66,7 @@ static int pdev_is_sata(struct pci_dev *pdev) 
			return 0;

	}

	BUG();

#endif

	return 0;

}
@@ -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

 *
@@ -385,7 +387,7 @@ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive) 
 *	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)

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