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
/*
* 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;
......@@ -66,9 +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)
......
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