/* $Id: cmd64x.c,v 1.21 2000/01/30 23:23:16 * * linux/drivers/ide/pci/cmd64x.c Version 1.30 Sept 10, 2002 * * cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines. * Note, this driver is not used at all on other systems because * there the "BIOS" has done all of the following already. * Due to massive hardware bugs, UltraDMA is only supported * on the 646U2 and not on the 646U. * * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) * Copyright (C) 1998 David S. Miller (davem@redhat.com) * * Copyright (C) 1999-2002 Andre Hedrick */ #include #include #include #include #include #include #include #include #define DISPLAY_CMD64X_TIMINGS #define CMD_DEBUG 0 #if CMD_DEBUG #define cmdprintk(x...) printk(x) #else #define cmdprintk(x...) #endif /* * CMD64x specific registers definition. */ #define CFR 0x50 #define CFR_INTR_CH0 0x02 #define CNTRL 0x51 #define CNTRL_DIS_RA0 0x40 #define CNTRL_DIS_RA1 0x80 #define CNTRL_ENA_2ND 0x08 #define CMDTIM 0x52 #define ARTTIM0 0x53 #define DRWTIM0 0x54 #define ARTTIM1 0x55 #define DRWTIM1 0x56 #define ARTTIM23 0x57 #define ARTTIM23_DIS_RA2 0x04 #define ARTTIM23_DIS_RA3 0x08 #define ARTTIM23_INTR_CH1 0x10 #define ARTTIM2 0x57 #define ARTTIM3 0x57 #define DRWTIM23 0x58 #define DRWTIM2 0x58 #define BRST 0x59 #define DRWTIM3 0x5b #define BMIDECR0 0x70 #define MRDMODE 0x71 #define MRDMODE_INTR_CH0 0x04 #define MRDMODE_INTR_CH1 0x08 #define MRDMODE_BLK_CH0 0x10 #define MRDMODE_BLK_CH1 0x20 #define BMIDESR0 0x72 #define UDIDETCR0 0x73 #define DTPR0 0x74 #define BMIDECR1 0x78 #define BMIDECSR 0x79 #define BMIDESR1 0x7A #define UDIDETCR1 0x7B #define DTPR1 0x7C #if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS) #include #include static u8 cmd64x_proc = 0; #define CMD_MAX_DEVS 5 static struct pci_dev *cmd_devs[CMD_MAX_DEVS]; static int n_cmd_devs; static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index) { char *p = buf; u8 reg53 = 0, reg54 = 0, reg55 = 0, reg56 = 0; /* primary */ u8 reg57 = 0, reg58 = 0, reg5b; /* secondary */ u8 reg72 = 0, reg73 = 0; /* primary */ u8 reg7a = 0, reg7b = 0; /* secondary */ u8 reg50 = 0, reg71 = 0; /* extra */ p += sprintf(p, "\nController: %d\n", index); p += sprintf(p, "CMD%x Chipset.\n", dev->device); (void) pci_read_config_byte(dev, CFR, ®50); (void) pci_read_config_byte(dev, ARTTIM0, ®53); (void) pci_read_config_byte(dev, DRWTIM0, ®54); (void) pci_read_config_byte(dev, ARTTIM1, ®55); (void) pci_read_config_byte(dev, DRWTIM1, ®56); (void) pci_read_config_byte(dev, ARTTIM2, ®57); (void) pci_read_config_byte(dev, DRWTIM2, ®58); (void) pci_read_config_byte(dev, DRWTIM3, ®5b); (void) pci_read_config_byte(dev, MRDMODE, ®71); (void) pci_read_config_byte(dev, BMIDESR0, ®72); (void) pci_read_config_byte(dev, UDIDETCR0, ®73); (void) pci_read_config_byte(dev, BMIDESR1, ®7a); (void) pci_read_config_byte(dev, UDIDETCR1, ®7b); p += sprintf(p, "--------------- Primary Channel " "---------------- Secondary Channel " "-------------\n"); p += sprintf(p, " %sabled " " %sabled\n", (reg72&0x80)?"dis":" en", (reg7a&0x80)?"dis":" en"); p += sprintf(p, "--------------- drive0 " "--------- drive1 -------- drive0 " "---------- drive1 ------\n"); p += sprintf(p, "DMA enabled: %s %s" " %s %s\n", (reg72&0x20)?"yes":"no ", (reg72&0x40)?"yes":"no ", (reg7a&0x20)?"yes":"no ", (reg7a&0x40)?"yes":"no "); p += sprintf(p, "DMA Mode: %s(%s) %s(%s)", (reg72&0x20)?((reg73&0x01)?"UDMA":" DMA"):" PIO", (reg72&0x20)?( ((reg73&0x30)==0x30)?(((reg73&0x35)==0x35)?"3":"0"): ((reg73&0x20)==0x20)?(((reg73&0x25)==0x25)?"3":"1"): ((reg73&0x10)==0x10)?(((reg73&0x15)==0x15)?"4":"2"): ((reg73&0x00)==0x00)?(((reg73&0x05)==0x05)?"5":"2"): "X"):"?", (reg72&0x40)?((reg73&0x02)?"UDMA":" DMA"):" PIO", (reg72&0x40)?( ((reg73&0xC0)==0xC0)?(((reg73&0xC5)==0xC5)?"3":"0"): ((reg73&0x80)==0x80)?(((reg73&0x85)==0x85)?"3":"1"): ((reg73&0x40)==0x40)?(((reg73&0x4A)==0x4A)?"4":"2"): ((reg73&0x00)==0x00)?(((reg73&0x0A)==0x0A)?"5":"2"): "X"):"?"); p += sprintf(p, " %s(%s) %s(%s)\n", (reg7a&0x20)?((reg7b&0x01)?"UDMA":" DMA"):" PIO", (reg7a&0x20)?( ((reg7b&0x30)==0x30)?(((reg7b&0x35)==0x35)?"3":"0"): ((reg7b&0x20)==0x20)?(((reg7b&0x25)==0x25)?"3":"1"): ((reg7b&0x10)==0x10)?(((reg7b&0x15)==0x15)?"4":"2"): ((reg7b&0x00)==0x00)?(((reg7b&0x05)==0x05)?"5":"2"): "X"):"?", (reg7a&0x40)?((reg7b&0x02)?"UDMA":" DMA"):" PIO", (reg7a&0x40)?( ((reg7b&0xC0)==0xC0)?(((reg7b&0xC5)==0xC5)?"3":"0"): ((reg7b&0x80)==0x80)?(((reg7b&0x85)==0x85)?"3":"1"): ((reg7b&0x40)==0x40)?(((reg7b&0x4A)==0x4A)?"4":"2"): ((reg7b&0x00)==0x00)?(((reg7b&0x0A)==0x0A)?"5":"2"): "X"):"?" ); p += sprintf(p, "PIO Mode: %s %s" " %s %s\n", "?", "?", "?", "?"); p += sprintf(p, " %s %s\n", (reg50 & CFR_INTR_CH0) ? "interrupting" : "polling ", (reg57 & ARTTIM23_INTR_CH1) ? "interrupting" : "polling"); p += sprintf(p, " %s %s\n", (reg71 & MRDMODE_INTR_CH0) ? "pending" : "clear ", (reg71 & MRDMODE_INTR_CH1) ? "pending" : "clear"); p += sprintf(p, " %s %s\n", (reg71 & MRDMODE_BLK_CH0) ? "blocked" : "enabled", (reg71 & MRDMODE_BLK_CH1) ? "blocked" : "enabled"); return (char *)p; } static int cmd64x_get_info (char *buffer, char **addr, off_t offset, int count) { char *p = buffer; int i; p += sprintf(p, "\n"); for (i = 0; i < n_cmd_devs; i++) { struct pci_dev *dev = cmd_devs[i]; p = print_cmd64x_get_info(p, dev, i); } return p-buffer; /* => must be less than 4k! */ } #endif /* defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS) */ /* * This routine writes the prepared setup/active/recovery counts * for a drive into the cmd646 chipset registers to active them. */ static void program_drive_counts (ide_drive_t *drive, int setup_count, int active_count, int recovery_count) { unsigned long flags; struct pci_dev *dev = HWIF(drive)->pci_dev; ide_drive_t *drives = HWIF(drive)->drives; u8 temp_b; static const u8 setup_counts[] = {0x40, 0x40, 0x40, 0x80, 0, 0xc0}; static const u8 recovery_counts[] = {15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0}; static const u8 arttim_regs[2][2] = { { ARTTIM0, ARTTIM1 }, { ARTTIM23, ARTTIM23 } }; static const u8 drwtim_regs[2][2] = { { DRWTIM0, DRWTIM1 }, { DRWTIM2, DRWTIM3 } }; int channel = (int) HWIF(drive)->channel; int slave = (drives != drive); /* Is this really the best way to determine this?? */ cmdprintk("program_drive_count parameters = s(%d),a(%d),r(%d),p(%d)\n", setup_count, active_count, recovery_count, drive->present); /* * Set up address setup count registers. * Primary interface has individual count/timing registers for * each drive. Secondary interface has one common set of registers, * for address setup so we merge these timings, using the slowest * value. */ if (channel) { drive->drive_data = setup_count; setup_count = max(drives[0].drive_data, drives[1].drive_data); cmdprintk("Secondary interface, setup_count = %d\n", setup_count); } /* * Convert values to internal chipset representation */ setup_count = (setup_count > 5) ? 0xc0 : (int) setup_counts[setup_count]; active_count &= 0xf; /* Remember, max value is 16 */ recovery_count = (int) recovery_counts[recovery_count]; cmdprintk("Final values = %d,%d,%d\n", setup_count, active_count, recovery_count); /* * Now that everything is ready, program the new timings */ local_irq_save(flags); /* * Program the address_setup clocks into ARTTIM reg, * and then the active/recovery counts into the DRWTIM reg */ (void) pci_read_config_byte(dev, arttim_regs[channel][slave], &temp_b); (void) pci_write_config_byte(dev, arttim_regs[channel][slave], ((u8) setup_count) | (temp_b & 0x3f)); (void) pci_write_config_byte(dev, drwtim_regs[channel][slave], (u8) ((active_count << 4) | recovery_count)); cmdprintk ("Write %x to %x\n", ((u8) setup_count) | (temp_b & 0x3f), arttim_regs[channel][slave]); cmdprintk ("Write %x to %x\n", (u8) ((active_count << 4) | recovery_count), drwtim_regs[channel][slave]); local_irq_restore(flags); } /* * Attempts to set the interface PIO mode. * The preferred method of selecting PIO modes (e.g. mode 4) is * "echo 'piomode:4' > /proc/ide/hdx/settings". Special cases are * 8: prefetch off, 9: prefetch on, 255: auto-select best mode. * Called with 255 at boot time. */ static void cmd64x_tuneproc (ide_drive_t *drive, u8 mode_wanted) { int setup_time, active_time, recovery_time; int clock_time, pio_mode, cycle_time; u8 recovery_count2, cycle_count; int setup_count, active_count, recovery_count; int bus_speed = system_bus_clock(); /*byte b;*/ ide_pio_data_t d; switch (mode_wanted) { case 8: /* set prefetch off */ case 9: /* set prefetch on */ mode_wanted &= 1; /*set_prefetch_mode(index, mode_wanted);*/ cmdprintk("%s: %sabled cmd640 prefetch\n", drive->name, mode_wanted ? "en" : "dis"); return; } mode_wanted = ide_get_best_pio_mode (drive, mode_wanted, 5, &d); pio_mode = d.pio_mode; cycle_time = d.cycle_time; /* * I copied all this complicated stuff from cmd640.c and made a few * minor changes. For now I am just going to pray that it is correct. */ if (pio_mode > 5) pio_mode = 5; setup_time = ide_pio_timings[pio_mode].setup_time; active_time = ide_pio_timings[pio_mode].active_time; recovery_time = cycle_time - (setup_time + active_time); clock_time = 1000 / bus_speed; cycle_count = (cycle_time + clock_time - 1) / clock_time; setup_count = (setup_time + clock_time - 1) / clock_time; active_count = (active_time + clock_time - 1) / clock_time; recovery_count = (recovery_time + clock_time - 1) / clock_time; recovery_count2 = cycle_count - (setup_count + active_count); if (recovery_count2 > recovery_count) recovery_count = recovery_count2; if (recovery_count > 16) { active_count += recovery_count - 16; recovery_count = 16; } if (active_count > 16) active_count = 16; /* maximum allowed by cmd646 */ /* * In a perfect world, we might set the drive pio mode here * (using WIN_SETFEATURE) before continuing. * * But we do not, because: * 1) this is the wrong place to do it * (proper is do_special() in ide.c) * 2) in practice this is rarely, if ever, necessary */ program_drive_counts (drive, setup_count, active_count, recovery_count); cmdprintk("%s: selected cmd646 PIO mode%d : %d (%dns)%s, " "clocks=%d/%d/%d\n", drive->name, pio_mode, mode_wanted, cycle_time, d.overridden ? " (overriding vendor mode)" : "", setup_count, active_count, recovery_count); } static u8 cmd64x_ratemask (ide_drive_t *drive) { struct pci_dev *dev = HWIF(drive)->pci_dev; u8 mode = 0; switch(dev->device) { case PCI_DEVICE_ID_CMD_649: mode = 3; break; case PCI_DEVICE_ID_CMD_648: mode = 2; break; case PCI_DEVICE_ID_CMD_643: return 0; case PCI_DEVICE_ID_CMD_646: { unsigned int class_rev = 0; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; /* * UltraDMA only supported on PCI646U and PCI646U2, which * correspond to revisions 0x03, 0x05 and 0x07 respectively. * Actually, although the CMD tech support people won't * tell me the details, the 0x03 revision cannot support * UDMA correctly without hardware modifications, and even * then it only works with Quantum disks due to some * hold time assumptions in the 646U part which are fixed * in the 646U2. * * So we only do UltraDMA on revision 0x05 and 0x07 chipsets. */ switch(class_rev) { case 0x07: case 0x05: return 1; case 0x03: case 0x01: default: return 0; } } } if (!eighty_ninty_three(drive)) mode = min(mode, (u8)1); return mode; } static void config_cmd64x_chipset_for_pio (ide_drive_t *drive, u8 set_speed) { u8 speed = 0x00; u8 set_pio = ide_get_best_pio_mode(drive, 4, 5, NULL); cmd64x_tuneproc(drive, set_pio); speed = XFER_PIO_0 + set_pio; if (set_speed) (void) ide_config_drive_speed(drive, speed); } static void config_chipset_for_pio (ide_drive_t *drive, u8 set_speed) { config_cmd64x_chipset_for_pio(drive, set_speed); } static int cmd64x_tune_chipset (ide_drive_t *drive, u8 xferspeed) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; u8 unit = (drive->select.b.unit & 0x01); u8 regU = 0, pciU = (hwif->channel) ? UDIDETCR1 : UDIDETCR0; u8 regD = 0, pciD = (hwif->channel) ? BMIDESR1 : BMIDESR0; u8 speed = ide_rate_filter(cmd64x_ratemask(drive), xferspeed); if (speed > XFER_PIO_4) { (void) pci_read_config_byte(dev, pciD, ®D); (void) pci_read_config_byte(dev, pciU, ®U); regD &= ~(unit ? 0x40 : 0x20); regU &= ~(unit ? 0xCA : 0x35); (void) pci_write_config_byte(dev, pciD, regD); (void) pci_write_config_byte(dev, pciU, regU); (void) pci_read_config_byte(dev, pciD, ®D); (void) pci_read_config_byte(dev, pciU, ®U); } switch(speed) { case XFER_UDMA_5: regU |= (unit ? 0x0A : 0x05); break; case XFER_UDMA_4: regU |= (unit ? 0x4A : 0x15); break; case XFER_UDMA_3: regU |= (unit ? 0x8A : 0x25); break; case XFER_UDMA_2: regU |= (unit ? 0x42 : 0x11); break; case XFER_UDMA_1: regU |= (unit ? 0x82 : 0x21); break; case XFER_UDMA_0: regU |= (unit ? 0xC2 : 0x31); break; case XFER_MW_DMA_2: regD |= (unit ? 0x40 : 0x10); break; case XFER_MW_DMA_1: regD |= (unit ? 0x80 : 0x20); break; case XFER_MW_DMA_0: regD |= (unit ? 0xC0 : 0x30); break; case XFER_SW_DMA_2: regD |= (unit ? 0x40 : 0x10); break; case XFER_SW_DMA_1: regD |= (unit ? 0x80 : 0x20); break; case XFER_SW_DMA_0: regD |= (unit ? 0xC0 : 0x30); break; case XFER_PIO_4: cmd64x_tuneproc(drive, 4); break; case XFER_PIO_3: cmd64x_tuneproc(drive, 3); break; case XFER_PIO_2: cmd64x_tuneproc(drive, 2); break; case XFER_PIO_1: cmd64x_tuneproc(drive, 1); break; case XFER_PIO_0: cmd64x_tuneproc(drive, 0); break; default: return 1; } if (speed > XFER_PIO_4) { (void) pci_write_config_byte(dev, pciU, regU); regD |= (unit ? 0x40 : 0x20); (void) pci_write_config_byte(dev, pciD, regD); } return (ide_config_drive_speed(drive, speed)); } static int config_chipset_for_dma (ide_drive_t *drive) { u8 speed = ide_dma_speed(drive, cmd64x_ratemask(drive)); config_chipset_for_pio(drive, !speed); if (!speed) return 0; if(ide_set_xfer_rate(drive, speed)) return 0; if (!drive->init_speed) drive->init_speed = speed; return ide_dma_enable(drive); } static int cmd64x_config_drive_for_dma (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct hd_driveid *id = drive->id; if ((id != NULL) && ((id->capability & 1) != 0) && drive->autodma) { if (ide_use_dma(drive)) { if (config_chipset_for_dma(drive)) return hwif->ide_dma_on(drive); } goto fast_ata_pio; } else if ((id->capability & 8) || (id->field_valid & 2)) { fast_ata_pio: config_chipset_for_pio(drive, 1); return hwif->ide_dma_off_quietly(drive); } /* IORDY not supported */ return 0; } static int cmd64x_alt_dma_status (struct pci_dev *dev) { switch(dev->device) { case PCI_DEVICE_ID_CMD_648: case PCI_DEVICE_ID_CMD_649: return 1; default: break; } return 0; } static int cmd64x_ide_dma_end (ide_drive_t *drive) { u8 dma_stat = 0, dma_cmd = 0; ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; drive->waiting_for_dma = 0; /* read DMA command state */ dma_cmd = hwif->INB(hwif->dma_command); /* stop DMA */ hwif->OUTB((dma_cmd & ~1), hwif->dma_command); /* get DMA status */ dma_stat = hwif->INB(hwif->dma_status); /* clear the INTR & ERROR bits */ hwif->OUTB(dma_stat|6, hwif->dma_status); if (cmd64x_alt_dma_status(dev)) { u8 dma_intr = 0; u8 dma_mask = (hwif->channel) ? ARTTIM23_INTR_CH1 : CFR_INTR_CH0; u8 dma_reg = (hwif->channel) ? ARTTIM2 : CFR; (void) pci_read_config_byte(dev, dma_reg, &dma_intr); /* clear the INTR bit */ (void) pci_write_config_byte(dev, dma_reg, dma_intr|dma_mask); } /* purge DMA mappings */ ide_destroy_dmatable(drive); /* verify good DMA status */ return (dma_stat & 7) != 4; } static int cmd64x_ide_dma_test_irq (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; u8 dma_alt_stat = 0, mask = (hwif->channel) ? MRDMODE_INTR_CH1 : MRDMODE_INTR_CH0; u8 dma_stat = hwif->INB(hwif->dma_status); (void) pci_read_config_byte(dev, MRDMODE, &dma_alt_stat); #ifdef DEBUG printk("%s: dma_stat: 0x%02x dma_alt_stat: " "0x%02x mask: 0x%02x\n", drive->name, dma_stat, dma_alt_stat, mask); #endif if (!(dma_alt_stat & mask)) return 0; /* return 1 if INTR asserted */ if ((dma_stat & 4) == 4) return 1; return 0; } /* * ASUS P55T2P4D with CMD646 chipset revision 0x01 requires the old * event order for DMA transfers. */ static int cmd646_1_ide_dma_end (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); u8 dma_stat = 0, dma_cmd = 0; drive->waiting_for_dma = 0; /* get DMA status */ dma_stat = hwif->INB(hwif->dma_status); /* read DMA command state */ dma_cmd = hwif->INB(hwif->dma_command); /* stop DMA */ hwif->OUTB((dma_cmd & ~1), hwif->dma_command); /* clear the INTR & ERROR bits */ hwif->OUTB(dma_stat|6, hwif->dma_status); /* and free any DMA resources */ ide_destroy_dmatable(drive); /* verify good DMA status */ return (dma_stat & 7) != 4; } static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const char *name) { u32 class_rev = 0; u8 mrdmode = 0; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; switch(dev->device) { case PCI_DEVICE_ID_CMD_643: break; case PCI_DEVICE_ID_CMD_646: printk(KERN_INFO "%s: chipset revision 0x%02X, ", name, class_rev); switch(class_rev) { case 0x07: case 0x05: printk("UltraDMA Capable"); break; case 0x03: printk("MultiWord DMA Force Limited"); break; case 0x01: default: printk("MultiWord DMA Limited, IRQ workaround enabled"); break; } printk("\n"); break; case PCI_DEVICE_ID_CMD_648: case PCI_DEVICE_ID_CMD_649: break; default: break; } /* Set a good latency timer and cache line size value. */ (void) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64); /* FIXME: pci_set_master() to ensure a good latency timer value */ /* Setup interrupts. */ (void) pci_read_config_byte(dev, MRDMODE, &mrdmode); mrdmode &= ~(0x30); (void) pci_write_config_byte(dev, MRDMODE, mrdmode); /* Use MEMORY READ LINE for reads. * NOTE: Although not mentioned in the PCI0646U specs, * these bits are write only and won't be read * back as set or not. The PCI0646U2 specs clarify * this point. */ (void) pci_write_config_byte(dev, MRDMODE, mrdmode | 0x02); /* Set reasonable active/recovery/address-setup values. */ (void) pci_write_config_byte(dev, ARTTIM0, 0x40); (void) pci_write_config_byte(dev, DRWTIM0, 0x3f); (void) pci_write_config_byte(dev, ARTTIM1, 0x40); (void) pci_write_config_byte(dev, DRWTIM1, 0x3f); #ifdef __i386__ (void) pci_write_config_byte(dev, ARTTIM23, 0x1c); #else (void) pci_write_config_byte(dev, ARTTIM23, 0x5c); #endif (void) pci_write_config_byte(dev, DRWTIM23, 0x3f); (void) pci_write_config_byte(dev, DRWTIM3, 0x3f); #ifdef CONFIG_PPC (void) pci_write_config_byte(dev, UDIDETCR0, 0xf0); #endif /* CONFIG_PPC */ #if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS) cmd_devs[n_cmd_devs++] = dev; if (!cmd64x_proc) { cmd64x_proc = 1; ide_pci_create_host_proc("cmd64x", cmd64x_get_info); } #endif /* DISPLAY_CMD64X_TIMINGS && CONFIG_PROC_FS */ return 0; } static unsigned int __devinit ata66_cmd64x(ide_hwif_t *hwif) { u8 ata66 = 0, mask = (hwif->channel) ? 0x02 : 0x01; switch(hwif->pci_dev->device) { case PCI_DEVICE_ID_CMD_643: case PCI_DEVICE_ID_CMD_646: return ata66; default: break; } pci_read_config_byte(hwif->pci_dev, BMIDECSR, &ata66); return (ata66 & mask) ? 1 : 0; } static void __devinit init_hwif_cmd64x(ide_hwif_t *hwif) { struct pci_dev *dev = hwif->pci_dev; unsigned int class_rev; hwif->autodma = 0; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; hwif->tuneproc = &cmd64x_tuneproc; hwif->speedproc = &cmd64x_tune_chipset; if (!hwif->dma_base) { hwif->drives[0].autotune = 1; hwif->drives[1].autotune = 1; return; } hwif->atapi_dma = 1; hwif->ultra_mask = 0x3f; hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; if (dev->device == PCI_DEVICE_ID_CMD_643) hwif->ultra_mask = 0x80; if (dev->device == PCI_DEVICE_ID_CMD_646) hwif->ultra_mask = (class_rev > 0x04) ? 0x07 : 0x80; if (dev->device == PCI_DEVICE_ID_CMD_648) hwif->ultra_mask = 0x1f; hwif->ide_dma_check = &cmd64x_config_drive_for_dma; if (!(hwif->udma_four)) hwif->udma_four = ata66_cmd64x(hwif); if (dev->device == PCI_DEVICE_ID_CMD_646) { hwif->chipset = ide_cmd646; if (class_rev == 0x01) { hwif->ide_dma_end = &cmd646_1_ide_dma_end; } else { hwif->ide_dma_end = &cmd64x_ide_dma_end; hwif->ide_dma_test_irq = &cmd64x_ide_dma_test_irq; } } else { hwif->ide_dma_end = &cmd64x_ide_dma_end; hwif->ide_dma_test_irq = &cmd64x_ide_dma_test_irq; } if (!noautodma) hwif->autodma = 1; hwif->drives[0].autodma = hwif->autodma; hwif->drives[1].autodma = hwif->autodma; } static ide_pci_device_t cmd64x_chipsets[] __devinitdata = { { /* 0 */ .name = "CMD643", .init_chipset = init_chipset_cmd64x, .init_hwif = init_hwif_cmd64x, .channels = 2, .autodma = AUTODMA, .bootable = ON_BOARD, },{ /* 1 */ .name = "CMD646", .init_chipset = init_chipset_cmd64x, .init_hwif = init_hwif_cmd64x, .channels = 2, .autodma = AUTODMA, .enablebits = {{0x00,0x00,0x00}, {0x51,0x80,0x80}}, .bootable = ON_BOARD, },{ /* 2 */ .name = "CMD648", .init_chipset = init_chipset_cmd64x, .init_hwif = init_hwif_cmd64x, .channels = 2, .autodma = AUTODMA, .bootable = ON_BOARD, },{ /* 3 */ .name = "CMD649", .init_chipset = init_chipset_cmd64x, .init_hwif = init_hwif_cmd64x, .channels = 2, .autodma = AUTODMA, .bootable = ON_BOARD, } }; static int __devinit cmd64x_init_one(struct pci_dev *dev, const struct pci_device_id *id) { return ide_setup_pci_device(dev, &cmd64x_chipsets[id->driver_data]); } static struct pci_device_id cmd64x_pci_tbl[] = { { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_643, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_648, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, { 0, }, }; MODULE_DEVICE_TABLE(pci, cmd64x_pci_tbl); static struct pci_driver driver = { .name = "CMD64x_IDE", .id_table = cmd64x_pci_tbl, .probe = cmd64x_init_one, }; static int __init cmd64x_ide_init(void) { return ide_pci_register_driver(&driver); } module_init(cmd64x_ide_init); MODULE_AUTHOR("Eddie Dost, David Miller, Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for CMD64x IDE"); MODULE_LICENSE("GPL");