linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / drivers / ide / pci / siimage.c

diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 20b3929..f1ca154 100644 (file)
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -27,6 +27,7 @@
  *     if neccessary
  */
 
+#include <linux/config.h>
 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -37,6 +38,9 @@
 
 #include <asm/io.h>
 
+#undef SIIMAGE_VIRTUAL_DMAPIO
+#undef SIIMAGE_LARGE_DMA
+
 /**
  *     pdev_is_sata            -       check if device is SATA
  *     @pdev:  PCI device to check
@@ -457,6 +461,36 @@ static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
        return 0;
 }
 
+#if 0
+/**
+ *     siimage_mmio_ide_dma_count      -       DMA bytes done
+ *     @drive
+ *
+ *     If we are doing VDMA the CMD680 requires a little bit
+ *     of more careful handling and we have to read the counts
+ *     off ourselves. For non VDMA life is normal.
+ */
+ 
+static int siimage_mmio_ide_dma_count (ide_drive_t *drive)
+{
+#ifdef SIIMAGE_VIRTUAL_DMAPIO
+       struct request *rq      = HWGROUP(drive)->rq;
+       ide_hwif_t *hwif        = HWIF(drive);
+       u32 count               = (rq->nr_sectors * SECTOR_SIZE);
+       u32 rcount              = 0;
+       unsigned long addr      = siimage_selreg(hwif, 0x1C);
+
+       hwif->OUTL(count, addr);
+       rcount = hwif->INL(addr);
+
+       printk("\n%s: count = %d, rcount = %d, nr_sectors = %lu\n",
+               drive->name, count, rcount, rq->nr_sectors);
+
+#endif /* SIIMAGE_VIRTUAL_DMAPIO */
+       return __ide_dma_count(drive);
+}
+#endif
+
 /**
  *     siimage_mmio_ide_dma_test_irq   -       check we caused an IRQ
  *     @drive: drive we are testing
@@ -478,10 +512,12 @@ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
                        u32 sata_error = hwif->INL(SATA_ERROR_REG);
                        hwif->OUTL(sata_error, SATA_ERROR_REG);
                        watchdog = (sata_error & 0x00680000) ? 1 : 0;
+#if 1
                        printk(KERN_WARNING "%s: sata_error = 0x%08x, "
                                "watchdog = %d, %s\n",
                                drive->name, sata_error, watchdog,
                                __FUNCTION__);
+#endif
 
                } else {
                        watchdog = (ext_stat & 0x8000) ? 1 : 0;
@@ -827,7 +863,7 @@ static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const ch
  *     time.
  *
  *     The hardware supports buffered taskfiles and also some rather nice
- *     extended PRD tables. For better SI3112 support use the libata driver
+ *     extended PRD tables. Unfortunately right now we don't.
  */
 
 static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
@@ -864,6 +900,9 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
         *      so we can't currently use it sanely since we want to
         *      use LBA48 mode.
         */     
+//     base += 0x10;
+//     hwif->no_lba48 = 1;
+
        hw.io_ports[IDE_DATA_OFFSET]    = base;
        hw.io_ports[IDE_ERROR_OFFSET]   = base + 1;
        hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
@@ -897,8 +936,15 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
 
                base = (unsigned long) addr;
 
+#ifdef SIIMAGE_LARGE_DMA
+/* Watch the brackets - even Ken and Dennis get some language design wrong */
+       hwif->dma_base                  = base + (ch ? 0x18 : 0x10);
+       hwif->dma_base2                 = base + (ch ? 0x08 : 0x00);
+       hwif->dma_prdtable              = hwif->dma_base2 + 4;
+#else /* ! SIIMAGE_LARGE_DMA */
        hwif->dma_base                  = base + (ch ? 0x08 : 0x00);
        hwif->dma_base2                 = base + (ch ? 0x18 : 0x10);
+#endif /* SIIMAGE_LARGE_DMA */
        hwif->mmio                      = 2;
 }
 
@@ -1006,16 +1052,9 @@ static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
        hwif->reset_poll = &siimage_reset_poll;
        hwif->pre_reset = &siimage_pre_reset;
 
-       if(is_sata(hwif)) {
-               static int first = 1;
-
+       if(is_sata(hwif))
                hwif->busproc   = &siimage_busproc;
 
-               if (first) {
-                       printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n");
-                       first = 0;
-               }
-       }
        if (!hwif->dma_base) {
                hwif->drives[0].autotune = 1;
                hwif->drives[1].autotune = 1;