/* * linux/drivers/ide/pci/siimage.c Version 1.17 Oct 18 2007 * * Copyright (C) 2001-2002 Andre Hedrick * Copyright (C) 2003 Red Hat * Copyright (C) 2007 MontaVista Software, Inc. * Copyright (C) 2007 Bartlomiej Zolnierkiewicz * * May be copied or modified under the terms of the GNU General Public License * * Documentation for CMD680: * http://gkernel.sourceforge.net/specs/sii/sii-0680a-v1.31.pdf.bz2 * * Documentation for SiI 3112: * http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2 * * Errata and other documentation only available under NDA. * * * FAQ Items: * If you are using Marvell SATA-IDE adapters with Maxtor drives * ensure the system is set up for ATA100/UDMA5 not UDMA6. * * If you are using WD drives with SATA bridges you must set the * drive to "Single". "Master" will hang * * If you have strange problems with nVidia chipset systems please * see the SI support documentation and update your system BIOS * if neccessary * * The Dell DRAC4 has some interesting features including effectively hot * unplugging/replugging the virtual CD interface when the DRAC is reset. * This often causes drivers/ide/siimage to panic but is ok with the rather * smarter code in libata. * * TODO: * - IORDY fixes * - VDMA support */ #include #include #include #include #include #include #include #include /** * pdev_is_sata - check if device is SATA * @pdev: PCI device to check * * Returns true if this is a SATA controller */ static int pdev_is_sata(struct pci_dev *pdev) { switch(pdev->device) { case PCI_DEVICE_ID_SII_3112: case PCI_DEVICE_ID_SII_1210SA: return 1; case PCI_DEVICE_ID_SII_680: return 0; } BUG(); return 0; } /** * is_sata - check if hwif is SATA * @hwif: interface to check * * Returns true if this is a SATA controller */ static inline int is_sata(ide_hwif_t *hwif) { return pdev_is_sata(hwif->pci_dev); } /** * siimage_selreg - return register base * @hwif: interface * @r: config offset * * Turn a config register offset into the right address in either * PCI space or MMIO space to access the control register in question * Thankfully this is a configuration operation so isnt performance * criticial. */ static unsigned long siimage_selreg(ide_hwif_t *hwif, int r) { unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; if(hwif->mmio) base += (hwif->channel << 6); else base += (hwif->channel << 4); return base; } /** * siimage_seldev - return register base * @hwif: interface * @r: config offset * * Turn a config register offset into the right address in either * PCI space or MMIO space to access the control register in question * including accounting for the unit shift. */ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r) { ide_hwif_t *hwif = HWIF(drive); unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; if(hwif->mmio) base += (hwif->channel << 6); else base += (hwif->channel << 4); base |= drive->select.b.unit << drive->select.b.unit; return base; } /** * sil_udma_filter - compute UDMA mask * @drive: IDE device * * Compute the available UDMA speeds for the device on the interface. * * For the CMD680 this depends on the clocking mode (scsc), for the * SI3112 SATA controller life is a bit simpler. */ static u8 sil_udma_filter(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; unsigned long base = (unsigned long) hwif->hwif_data; u8 mask = 0, scsc = 0; if (hwif->mmio) scsc = hwif->INB(base + 0x4A); 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; else if ((scsc & 0x30) == 0x20) /* 2xPCI */ mask = 0x7f; else if ((scsc & 0x30) == 0x00) /* 100 */ mask = 0x3f; else /* Disabled ? */ BUG(); out: return mask; } /** * sil_set_pio_mode - set host controller for PIO mode * @drive: drive * @pio: PIO mode number * * Load the timing settings for this device mode into the * controller. If we are in PIO mode 3 or 4 turn on IORDY * monitoring (bit 9). The TF timing is bits 31:16 */ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio) { const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 }; const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 }; ide_hwif_t *hwif = HWIF(drive); ide_drive_t *pair = ide_get_paired_drive(drive); u32 speedt = 0; u16 speedp = 0; unsigned long addr = siimage_seldev(drive, 0x04); unsigned long tfaddr = siimage_selreg(hwif, 0x02); unsigned long base = (unsigned long)hwif->hwif_data; u8 tf_pio = pio; u8 addr_mask = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84) : (hwif->mmio ? 0xB4 : 0x80); u8 mode = 0; u8 unit = drive->select.b.unit; /* trim *taskfile* PIO to the slowest of the master/slave */ if (pair->present) { u8 pair_pio = ide_get_best_pio_mode(pair, 255, 4); if (pair_pio < tf_pio) tf_pio = pair_pio; } /* cheat for now and use the docs */ speedp = data_speed[pio]; speedt = tf_speed[tf_pio]; if (hwif->mmio) { hwif->OUTW(speedp, addr); hwif->OUTW(speedt, tfaddr); /* Now set up IORDY */ if (pio > 2) hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2); else hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2); mode = hwif->INB(base + addr_mask); mode &= ~(unit ? 0x30 : 0x03); mode |= (unit ? 0x10 : 0x01); hwif->OUTB(mode, base + addr_mask); } else { pci_write_config_word(hwif->pci_dev, addr, speedp); pci_write_config_word(hwif->pci_dev, tfaddr, speedt); pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp); speedp &= ~0x200; /* Set IORDY for mode 3 or 4 */ if (pio > 2) speedp |= 0x200; pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp); pci_read_config_byte(hwif->pci_dev, addr_mask, &mode); mode &= ~(unit ? 0x30 : 0x03); mode |= (unit ? 0x10 : 0x01); pci_write_config_byte(hwif->pci_dev, addr_mask, mode); } } /** * sil_set_dma_mode - set host controller for DMA mode * @drive: drive * @speed: DMA mode * * Tune the SiI chipset for the desired DMA mode. */ static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed) { u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 }; u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 }; u16 dma[] = { 0x2208, 0x10C2, 0x10C1 }; ide_hwif_t *hwif = HWIF(drive); u16 ultra = 0, multi = 0; u8 mode = 0, unit = drive->select.b.unit; unsigned long base = (unsigned long)hwif->hwif_data; u8 scsc = 0, addr_mask = ((hwif->channel) ? ((hwif->mmio) ? 0xF4 : 0x84) : ((hwif->mmio) ? 0xB4 : 0x80)); unsigned long ma = siimage_seldev(drive, 0x08); unsigned long ua = siimage_seldev(drive, 0x0C); if (hwif->mmio) { scsc = hwif->INB(base + 0x4A); mode = hwif->INB(base + addr_mask); multi = hwif->INW(ma); ultra = hwif->INW(ua); } else { pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc); pci_read_config_byte(hwif->pci_dev, addr_mask, &mode); pci_read_config_word(hwif->pci_dev, ma, &multi); pci_read_config_word(hwif->pci_dev, ua, &ultra); } mode &= ~((unit) ? 0x30 : 0x03); ultra &= ~0x3F; scsc = ((scsc & 0x30) == 0x00) ? 0 : 1; scsc = is_sata(hwif) ? 1 : scsc; switch(speed) { case XFER_MW_DMA_2: case XFER_MW_DMA_1: case XFER_MW_DMA_0: multi = dma[speed - XFER_MW_DMA_0]; mode |= ((unit) ? 0x20 : 0x02); break; case XFER_UDMA_6: case XFER_UDMA_5: case XFER_UDMA_4: case XFER_UDMA_3: case XFER_UDMA_2: case XFER_UDMA_1: case XFER_UDMA_0: multi = dma[2]; ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) : (ultra5[speed - XFER_UDMA_0])); mode |= ((unit) ? 0x30 : 0x03); break; default: return; } if (hwif->mmio) { hwif->OUTB(mode, base + addr_mask); hwif->OUTW(multi, ma); hwif->OUTW(ultra, ua); } else { pci_write_config_byte(hwif->pci_dev, addr_mask, mode); pci_write_config_word(hwif->pci_dev, ma, multi); pci_write_config_word(hwif->pci_dev, ua, ultra); } } /* returns 1 if dma irq issued, 0 otherwise */ static int siimage_io_ide_dma_test_irq (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); u8 dma_altstat = 0; unsigned long addr = siimage_selreg(hwif, 1); /* return 1 if INTR asserted */ if ((hwif->INB(hwif->dma_status) & 4) == 4) return 1; /* return 1 if Device INTR asserted */ pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat); if (dma_altstat & 8) return 0; //return 1; return 0; } /** * siimage_mmio_ide_dma_test_irq - check we caused an IRQ * @drive: drive we are testing * * Check if we caused an IDE DMA interrupt. We may also have caused * SATA status interrupts, if so we clean them up and continue. */ 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) { u32 ext_stat = readl((void __iomem *)(base + 0x10)); u8 watchdog = 0; if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) { u32 sata_error = readl((void __iomem *)SATA_ERROR_REG); writel(sata_error, (void __iomem *)SATA_ERROR_REG); watchdog = (sata_error & 0x00680000) ? 1 : 0; printk(KERN_WARNING "%s: sata_error = 0x%08x, " "watchdog = %d, %s\n", drive->name, sata_error, watchdog, __FUNCTION__); } else { watchdog = (ext_stat & 0x8000) ? 1 : 0; } ext_stat >>= 16; if (!(ext_stat & 0x0404) && !watchdog) return 0; } /* return 1 if INTR asserted */ if ((readb((void __iomem *)hwif->dma_status) & 0x04) == 0x04) return 1; /* return 1 if Device INTR asserted */ if ((readb((void __iomem *)addr) & 8) == 8) return 0; //return 1; return 0; } /** * siimage_busproc - bus isolation ioctl * @drive: drive to isolate/restore * @state: bus state to set * * Used by the SII3112 to handle bus isolation. As this is a * 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) { ide_hwif_t *hwif = HWIF(drive); u32 stat_config = 0; unsigned long addr = siimage_selreg(hwif, 0); if (hwif->mmio) stat_config = readl((void __iomem *)addr); else pci_read_config_dword(hwif->pci_dev, addr, &stat_config); switch (state) { case BUSSTATE_ON: hwif->drives[0].failures = 0; hwif->drives[1].failures = 0; break; case BUSSTATE_OFF: hwif->drives[0].failures = hwif->drives[0].max_failures + 1; hwif->drives[1].failures = hwif->drives[1].max_failures + 1; break; case BUSSTATE_TRISTATE: hwif->drives[0].failures = hwif->drives[0].max_failures + 1; hwif->drives[1].failures = hwif->drives[1].max_failures + 1; break; default: return -EINVAL; } hwif->bus_state = state; return 0; } /** * siimage_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) { if (SATA_STATUS_REG) { ide_hwif_t *hwif = HWIF(drive); /* SATA_STATUS_REG is valid only when in MMIO mode */ if ((readl((void __iomem *)SATA_STATUS_REG) & 0x03) != 0x03) { printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n", hwif->name, readl((void __iomem *)SATA_STATUS_REG)); HWGROUP(drive)->polling = 0; return ide_started; } return 0; } else { return 0; } } /** * siimage_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))) { drive->special.b.set_geometry = 0; drive->special.b.recalibrate = 0; } } /** * siimage_reset - reset a device on an siimage controller * @drive: drive to reset * * Perform a controller level reset fo the device. For * SATA we must also check the PHY. */ static void siimage_reset (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); u8 reset = 0; unsigned long addr = siimage_selreg(hwif, 0); if (hwif->mmio) { reset = hwif->INB(addr); hwif->OUTB((reset|0x03), addr); /* FIXME:posting */ udelay(25); hwif->OUTB(reset, addr); (void) hwif->INB(addr); } else { pci_read_config_byte(hwif->pci_dev, addr, &reset); pci_write_config_byte(hwif->pci_dev, addr, reset|0x03); udelay(25); pci_write_config_byte(hwif->pci_dev, addr, reset); pci_read_config_byte(hwif->pci_dev, addr, &reset); } if (SATA_STATUS_REG) { /* SATA_STATUS_REG is valid only when in MMIO mode */ u32 sata_stat = readl((void __iomem *)SATA_STATUS_REG); printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n", hwif->name, sata_stat, __FUNCTION__); if (!(sata_stat)) { printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n", hwif->name, sata_stat); drive->failures++; } } } /** * proc_reports_siimage - add siimage controller to proc * @dev: PCI device * @clocking: SCSC value * @name: controller name * * Report the clocking mode of the controller and add it to * the /proc interface layer */ static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name) { if (!pdev_is_sata(dev)) { printk(KERN_INFO "%s: BASE CLOCK ", name); clocking &= 0x03; switch (clocking) { case 0x03: printk("DISABLED!\n"); break; case 0x02: printk("== 2X PCI\n"); break; case 0x01: printk("== 133\n"); break; case 0x00: printk("== 100\n"); break; } } } /** * setup_mmio_siimage - switch an SI controller into MMIO * @dev: PCI device we are configuring * @name: device name * * Attempt to put the device into mmio mode. There are some slight * complications here with certain systems where the mmio bar isnt * mapped so we have to be sure we can fall back to I/O. */ static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name) { unsigned long bar5 = pci_resource_start(dev, 5); unsigned long barsize = pci_resource_len(dev, 5); u8 tmpbyte = 0; void __iomem *ioaddr; u32 tmp, irq_mask; /* * Drop back to PIO if we can't map the mmio. Some * systems seem to get terminally confused in the PCI * spaces. */ if(!request_mem_region(bar5, barsize, name)) { printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n"); return 0; } ioaddr = ioremap(bar5, barsize); if (ioaddr == NULL) { release_mem_region(bar5, barsize); return 0; } pci_set_master(dev); pci_set_drvdata(dev, (void *) ioaddr); if (pdev_is_sata(dev)) { /* make sure IDE0/1 interrupts are not masked */ irq_mask = (1 << 22) | (1 << 23); tmp = readl(ioaddr + 0x48); if (tmp & irq_mask) { tmp &= ~irq_mask; writel(tmp, ioaddr + 0x48); readl(ioaddr + 0x48); /* flush */ } writel(0, ioaddr + 0x148); writel(0, ioaddr + 0x1C8); } writeb(0, ioaddr + 0xB4); writeb(0, ioaddr + 0xF4); tmpbyte = readb(ioaddr + 0x4A); switch(tmpbyte & 0x30) { case 0x00: /* In 100 MHz clocking, try and switch to 133 */ writeb(tmpbyte|0x10, ioaddr + 0x4A); break; case 0x10: /* On 133Mhz clocking */ break; case 0x20: /* On PCIx2 clocking */ break; case 0x30: /* Clocking is disabled */ /* 133 clock attempt to force it on */ writeb(tmpbyte & ~0x20, ioaddr + 0x4A); break; } writeb( 0x72, ioaddr + 0xA1); writew( 0x328A, ioaddr + 0xA2); writel(0x62DD62DD, ioaddr + 0xA4); writel(0x43924392, ioaddr + 0xA8); writel(0x40094009, ioaddr + 0xAC); writeb( 0x72, ioaddr + 0xE1); writew( 0x328A, ioaddr + 0xE2); writel(0x62DD62DD, ioaddr + 0xE4); writel(0x43924392, ioaddr + 0xE8); writel(0x40094009, ioaddr + 0xEC); if (pdev_is_sata(dev)) { writel(0xFFFF0000, ioaddr + 0x108); writel(0xFFFF0000, ioaddr + 0x188); writel(0x00680000, ioaddr + 0x148); writel(0x00680000, ioaddr + 0x1C8); } tmpbyte = readb(ioaddr + 0x4A); proc_reports_siimage(dev, (tmpbyte>>4), name); return 1; } /** * init_chipset_siimage - set up an SI device * @dev: PCI device * @name: device name * * Perform the initial PCI set up for this device. Attempt to switch * to 133MHz clocking if the system isn't already set up to do it. */ static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const char *name) { u32 class_rev = 0; u8 tmpbyte = 0; u8 BA5_EN = 0; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255); pci_read_config_byte(dev, 0x8A, &BA5_EN); if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) { if (setup_mmio_siimage(dev, name)) { return 0; } } pci_write_config_byte(dev, 0x80, 0x00); pci_write_config_byte(dev, 0x84, 0x00); pci_read_config_byte(dev, 0x8A, &tmpbyte); switch(tmpbyte & 0x30) { case 0x00: /* 133 clock attempt to force it on */ pci_write_config_byte(dev, 0x8A, tmpbyte|0x10); case 0x30: /* if clocking is disabled */ /* 133 clock attempt to force it on */ pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20); case 0x10: /* 133 already */ break; case 0x20: /* BIOS set PCI x2 clocking */ break; } pci_read_config_byte(dev, 0x8A, &tmpbyte); pci_write_config_byte(dev, 0xA1, 0x72); pci_write_config_word(dev, 0xA2, 0x328A); pci_write_config_dword(dev, 0xA4, 0x62DD62DD); pci_write_config_dword(dev, 0xA8, 0x43924392); pci_write_config_dword(dev, 0xAC, 0x40094009); pci_write_config_byte(dev, 0xB1, 0x72); pci_write_config_word(dev, 0xB2, 0x328A); pci_write_config_dword(dev, 0xB4, 0x62DD62DD); pci_write_config_dword(dev, 0xB8, 0x43924392); pci_write_config_dword(dev, 0xBC, 0x40094009); proc_reports_siimage(dev, (tmpbyte>>4), name); return 0; } /** * init_mmio_iops_siimage - set up the iops for MMIO * @hwif: interface to set up * * The basic setup here is fairly simple, we can use standard MMIO * operations. However we do have to set the taskfile register offsets * by hand as there isnt a standard defined layout for them this * time. * * The hardware supports buffered taskfiles and also some rather nice * extended PRD tables. For better SI3112 support use the libata driver */ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif) { struct pci_dev *dev = hwif->pci_dev; void *addr = pci_get_drvdata(dev); u8 ch = hwif->channel; hw_regs_t hw; unsigned long base; /* * Fill in the basic HWIF bits */ default_hwif_mmiops(hwif); hwif->hwif_data = addr; /* * Now set up the hw. We have to do this ourselves as * the MMIO layout isnt the same as the standard port * based I/O */ memset(&hw, 0, sizeof(hw_regs_t)); base = (unsigned long)addr; if (ch) base += 0xC0; else base += 0x80; /* * The buffered task file doesn't have status/control * so we can't currently use it sanely since we want to * use LBA48 mode. */ hw.io_ports[IDE_DATA_OFFSET] = base; hw.io_ports[IDE_ERROR_OFFSET] = base + 1; hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2; hw.io_ports[IDE_SECTOR_OFFSET] = base + 3; hw.io_ports[IDE_LCYL_OFFSET] = base + 4; hw.io_ports[IDE_HCYL_OFFSET] = base + 5; hw.io_ports[IDE_SELECT_OFFSET] = base + 6; hw.io_ports[IDE_STATUS_OFFSET] = base + 7; hw.io_ports[IDE_CONTROL_OFFSET] = base + 10; hw.io_ports[IDE_IRQ_OFFSET] = 0; if (pdev_is_sata(dev)) { base = (unsigned long)addr; if (ch) base += 0x80; hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104; hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108; hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100; hwif->sata_misc[SATA_MISC_OFFSET] = base + 0x140; hwif->sata_misc[SATA_PHY_OFFSET] = base + 0x144; hwif->sata_misc[SATA_IEN_OFFSET] = base + 0x148; } hw.irq = hwif->pci_dev->irq; memcpy(&hwif->hw, &hw, sizeof(hw)); memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports)); hwif->irq = hw.irq; base = (unsigned long) addr; hwif->dma_base = base + (ch ? 0x08 : 0x00); hwif->mmio = 1; } static int is_dev_seagate_sata(ide_drive_t *drive) { const char *s = &drive->id->model[0]; unsigned len; if (!drive->present) return 0; len = strnlen(s, sizeof(drive->id->model)); if ((len > 4) && (!memcmp(s, "ST", 2))) { if ((!memcmp(s + len - 2, "AS", 2)) || (!memcmp(s + len - 3, "ASL", 3))) { printk(KERN_INFO "%s: applying pessimistic Seagate " "errata fix\n", drive->name); return 1; } } return 0; } /** * siimage_fixup - post probe fixups * @hwif: interface to fix up * * Called after drive probe we use this to decide whether the * Seagate fixup must be applied. This used to be in init_iops but * that can occur before we know what drives are present. */ static void __devinit siimage_fixup(ide_hwif_t *hwif) { /* Try and raise the rqsize */ if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0])) hwif->rqsize = 128; } /** * init_iops_siimage - set up iops * @hwif: interface to set up * * Do the basic setup for the SIIMAGE hardware interface * and then do the MMIO setup if we can. This is the first * look in we get for setting up the hwif so that we * can get the iops right before using them. */ static void __devinit init_iops_siimage(ide_hwif_t *hwif) { struct pci_dev *dev = hwif->pci_dev; u32 class_rev = 0; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; hwif->hwif_data = NULL; /* Pessimal until we finish probing */ hwif->rqsize = 15; if (pci_get_drvdata(dev) == NULL) return; init_mmio_iops_siimage(hwif); } /** * ata66_siimage - check for 80 pin cable * @hwif: interface to check * * Check for the presence of an ATA66 capable cable on the * interface. */ static u8 __devinit ata66_siimage(ide_hwif_t *hwif) { unsigned long addr = siimage_selreg(hwif, 0); u8 ata66 = 0; if (pci_get_drvdata(hwif->pci_dev) == NULL) pci_read_config_byte(hwif->pci_dev, addr, &ata66); else ata66 = hwif->INB(addr); return (ata66 & 0x01) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; } /** * init_hwif_siimage - set up hwif structs * @hwif: interface to set up * * We do the basic set up of the interface structure. The SIIMAGE * requires several custom handlers so we override the default * ide DMA handlers appropriately */ static void __devinit init_hwif_siimage(ide_hwif_t *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)) { static int first = 1; 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; } } hwif->drives[0].autotune = hwif->drives[1].autotune = 1; if (hwif->dma_base == 0) return; hwif->ultra_mask = 0x7f; hwif->mwdma_mask = 0x07; if (is_sata(hwif)) hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA; if (hwif->cbl != ATA_CBL_PATA40_SHORT) hwif->cbl = ata66_siimage(hwif); if (hwif->mmio) { hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq; } else { hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq; } } #define DECLARE_SII_DEV(name_str) \ { \ .name = name_str, \ .init_chipset = init_chipset_siimage, \ .init_iops = init_iops_siimage, \ .init_hwif = init_hwif_siimage, \ .fixup = siimage_fixup, \ .autodma = AUTODMA, \ .host_flags = IDE_HFLAG_BOOTABLE, \ .pio_mask = ATA_PIO4, \ } static ide_pci_device_t siimage_chipsets[] __devinitdata = { /* 0 */ DECLARE_SII_DEV("SiI680"), /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"), /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA") }; /** * siimage_init_one - pci layer discovery entry * @dev: PCI device * @id: ident table entry * * Called by the PCI code when it finds an SI680 or SI3112 controller. * We then use the IDE PCI generic helper to do most of the work. */ static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id) { return ide_setup_pci_device(dev, &siimage_chipsets[id->driver_data]); } static const struct pci_device_id siimage_pci_tbl[] = { { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), 0 }, #ifdef CONFIG_BLK_DEV_IDE_SATA { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_3112), 1 }, { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 2 }, #endif { 0, }, }; MODULE_DEVICE_TABLE(pci, siimage_pci_tbl); static struct pci_driver driver = { .name = "SiI_IDE", .id_table = siimage_pci_tbl, .probe = siimage_init_one, }; static int __init siimage_ide_init(void) { return ide_pci_register_driver(&driver); } module_init(siimage_ide_init); MODULE_AUTHOR("Andre Hedrick, Alan Cox"); MODULE_DESCRIPTION("PCI driver module for SiI IDE"); MODULE_LICENSE("GPL");