Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff
[linux-2.6.git] / drivers / ide / pci / aec62xx.c
index f474e1d..c743e68 100644 (file)
 
 #include <asm/io.h>
 
-#include "aec62xx.h"
-
-#if defined(DISPLAY_AEC62XX_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
+struct chipset_bus_clock_list_entry {
+       u8 xfer_speed;
+       u8 chipset_settings;
+       u8 ultra_settings;
+};
 
-static u8 aec62xx_proc = 0;
+static struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
+       {       XFER_UDMA_6,    0x31,   0x07    },
+       {       XFER_UDMA_5,    0x31,   0x06    },
+       {       XFER_UDMA_4,    0x31,   0x05    },
+       {       XFER_UDMA_3,    0x31,   0x04    },
+       {       XFER_UDMA_2,    0x31,   0x03    },
+       {       XFER_UDMA_1,    0x31,   0x02    },
+       {       XFER_UDMA_0,    0x31,   0x01    },
+
+       {       XFER_MW_DMA_2,  0x31,   0x00    },
+       {       XFER_MW_DMA_1,  0x31,   0x00    },
+       {       XFER_MW_DMA_0,  0x0a,   0x00    },
+       {       XFER_PIO_4,     0x31,   0x00    },
+       {       XFER_PIO_3,     0x33,   0x00    },
+       {       XFER_PIO_2,     0x08,   0x00    },
+       {       XFER_PIO_1,     0x0a,   0x00    },
+       {       XFER_PIO_0,     0x00,   0x00    },
+       {       0,              0x00,   0x00    }
+};
 
-#define AEC_MAX_DEVS           5
+static struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
+       {       XFER_UDMA_6,    0x41,   0x06    },
+       {       XFER_UDMA_5,    0x41,   0x05    },
+       {       XFER_UDMA_4,    0x41,   0x04    },
+       {       XFER_UDMA_3,    0x41,   0x03    },
+       {       XFER_UDMA_2,    0x41,   0x02    },
+       {       XFER_UDMA_1,    0x41,   0x01    },
+       {       XFER_UDMA_0,    0x41,   0x01    },
+
+       {       XFER_MW_DMA_2,  0x41,   0x00    },
+       {       XFER_MW_DMA_1,  0x42,   0x00    },
+       {       XFER_MW_DMA_0,  0x7a,   0x00    },
+       {       XFER_PIO_4,     0x41,   0x00    },
+       {       XFER_PIO_3,     0x43,   0x00    },
+       {       XFER_PIO_2,     0x78,   0x00    },
+       {       XFER_PIO_1,     0x7a,   0x00    },
+       {       XFER_PIO_0,     0x70,   0x00    },
+       {       0,              0x00,   0x00    }
+};
 
-static struct pci_dev *aec_devs[AEC_MAX_DEVS];
-static int n_aec_devs;
+#define BUSCLOCK(D)    \
+       ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))
 
-#undef DEBUG_AEC_REGS
-
-static int aec62xx_get_info (char *buffer, char **addr, off_t offset, int count)
-{
-       char *p = buffer;
-       char *chipset_nums[] = {"error", "error", "error", "error",
-                               "error", "error", "850UF",   "860",
-                                "860R",   "865",  "865R", "error"  };
-       int len;
-       int i;
-
-       for (i = 0; i < n_aec_devs; i++) {
-               struct pci_dev *dev     = aec_devs[i];
-               unsigned long iobase = pci_resource_start(dev, 4);
-               u8 c0 = 0, c1 = 0, art  = 0;
-#ifdef DEBUG_AEC_REGS
-               u8 uart                 = 0;
-#endif /* DEBUG_AEC_REGS */
-
-               c0 = inb(iobase + 0x02);
-               c1 = inb(iobase + 0x0a);
-
-               p += sprintf(p, "\nController: %d\n", i);
-               p += sprintf(p, "Chipset: AEC%s\n", chipset_nums[dev->device]);
-
-               p += sprintf(p, "--------------- Primary Channel "
-                               "---------------- Secondary Channel "
-                               "-------------\n");
-               (void) pci_read_config_byte(dev, 0x4a, &art);
-               p += sprintf(p, "                %sabled ",
-                       (art&0x02)?" en":"dis");
-               p += sprintf(p, "                        %sabled\n",
-                       (art&0x04)?" en":"dis");
-               p += sprintf(p, "--------------- drive0 --------- drive1 "
-                               "-------- drive0 ---------- drive1 ------\n");
-               p += sprintf(p, "DMA enabled:    %s              %s ",
-                       (c0&0x20)?"yes":"no ",(c0&0x40)?"yes":"no ");
-               p += sprintf(p, "            %s               %s\n",
-                       (c1&0x20)?"yes":"no ",(c1&0x40)?"yes":"no ");
-
-               if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
-                       (void) pci_read_config_byte(dev, 0x54, &art);
-                       p += sprintf(p, "DMA Mode:       %s(%s)",
-                               (c0&0x20)?((art&0x03)?"UDMA":" DMA"):" PIO",
-                               (art&0x02)?"2":(art&0x01)?"1":"0");
-                       p += sprintf(p, "          %s(%s)",
-                               (c0&0x40)?((art&0x0c)?"UDMA":" DMA"):" PIO",
-                               (art&0x08)?"2":(art&0x04)?"1":"0");
-                       p += sprintf(p, "         %s(%s)",
-                               (c1&0x20)?((art&0x30)?"UDMA":" DMA"):" PIO",
-                               (art&0x20)?"2":(art&0x10)?"1":"0");
-                       p += sprintf(p, "           %s(%s)\n",
-                               (c1&0x40)?((art&0xc0)?"UDMA":" DMA"):" PIO",
-                               (art&0x80)?"2":(art&0x40)?"1":"0");
-#ifdef DEBUG_AEC_REGS
-                       (void) pci_read_config_byte(dev, 0x40, &art);
-                       p += sprintf(p, "Active:         0x%02x", art);
-                       (void) pci_read_config_byte(dev, 0x42, &art);
-                       p += sprintf(p, "             0x%02x", art);
-                       (void) pci_read_config_byte(dev, 0x44, &art);
-                       p += sprintf(p, "            0x%02x", art);
-                       (void) pci_read_config_byte(dev, 0x46, &art);
-                       p += sprintf(p, "              0x%02x\n", art);
-                       (void) pci_read_config_byte(dev, 0x41, &art);
-                       p += sprintf(p, "Recovery:       0x%02x", art);
-                       (void) pci_read_config_byte(dev, 0x43, &art);
-                       p += sprintf(p, "             0x%02x", art);
-                       (void) pci_read_config_byte(dev, 0x45, &art);
-                       p += sprintf(p, "            0x%02x", art);
-                       (void) pci_read_config_byte(dev, 0x47, &art);
-                       p += sprintf(p, "              0x%02x\n", art);
-#endif /* DEBUG_AEC_REGS */
-               } else {
-                       /*
-                        * case PCI_DEVICE_ID_ARTOP_ATP860:
-                        * case PCI_DEVICE_ID_ARTOP_ATP860R:
-                        * case PCI_DEVICE_ID_ARTOP_ATP865:
-                        * case PCI_DEVICE_ID_ARTOP_ATP865R:
-                        */
-                       (void) pci_read_config_byte(dev, 0x44, &art);
-                       p += sprintf(p, "DMA Mode:       %s(%s)",
-                               (c0&0x20)?((art&0x07)?"UDMA":" DMA"):" PIO",
-                               ((art&0x07)==0x07)?"6":
-                               ((art&0x06)==0x06)?"5":
-                               ((art&0x05)==0x05)?"4":
-                               ((art&0x04)==0x04)?"3":
-                               ((art&0x03)==0x03)?"2":
-                               ((art&0x02)==0x02)?"1":
-                               ((art&0x01)==0x01)?"0":"?");
-                       p += sprintf(p, "          %s(%s)",
-                               (c0&0x40)?((art&0x70)?"UDMA":" DMA"):" PIO",
-                               ((art&0x70)==0x70)?"6":
-                               ((art&0x60)==0x60)?"5":
-                               ((art&0x50)==0x50)?"4":
-                               ((art&0x40)==0x40)?"3":
-                               ((art&0x30)==0x30)?"2":
-                               ((art&0x20)==0x20)?"1":
-                               ((art&0x10)==0x10)?"0":"?");
-                       (void) pci_read_config_byte(dev, 0x45, &art);
-                       p += sprintf(p, "         %s(%s)",
-                               (c1&0x20)?((art&0x07)?"UDMA":" DMA"):" PIO",
-                               ((art&0x07)==0x07)?"6":
-                               ((art&0x06)==0x06)?"5":
-                               ((art&0x05)==0x05)?"4":
-                               ((art&0x04)==0x04)?"3":
-                               ((art&0x03)==0x03)?"2":
-                               ((art&0x02)==0x02)?"1":
-                               ((art&0x01)==0x01)?"0":"?");
-                       p += sprintf(p, "           %s(%s)\n",
-                               (c1&0x40)?((art&0x70)?"UDMA":" DMA"):" PIO",
-                               ((art&0x70)==0x70)?"6":
-                               ((art&0x60)==0x60)?"5":
-                               ((art&0x50)==0x50)?"4":
-                               ((art&0x40)==0x40)?"3":
-                               ((art&0x30)==0x30)?"2":
-                               ((art&0x20)==0x20)?"1":
-                               ((art&0x10)==0x10)?"0":"?");
-#ifdef DEBUG_AEC_REGS
-                       (void) pci_read_config_byte(dev, 0x40, &art);
-                       p += sprintf(p, "Active:         0x%02x", HIGH_4(art));
-                       (void) pci_read_config_byte(dev, 0x41, &art);
-                       p += sprintf(p, "             0x%02x", HIGH_4(art));
-                       (void) pci_read_config_byte(dev, 0x42, &art);
-                       p += sprintf(p, "            0x%02x", HIGH_4(art));
-                       (void) pci_read_config_byte(dev, 0x43, &art);
-                       p += sprintf(p, "              0x%02x\n", HIGH_4(art));
-                       (void) pci_read_config_byte(dev, 0x40, &art);
-                       p += sprintf(p, "Recovery:       0x%02x", LOW_4(art));
-                       (void) pci_read_config_byte(dev, 0x41, &art);
-                       p += sprintf(p, "             0x%02x", LOW_4(art));
-                       (void) pci_read_config_byte(dev, 0x42, &art);
-                       p += sprintf(p, "            0x%02x", LOW_4(art));
-                       (void) pci_read_config_byte(dev, 0x43, &art);
-                       p += sprintf(p, "              0x%02x\n", LOW_4(art));
-                       (void) pci_read_config_byte(dev, 0x49, &uart);
-                       p += sprintf(p, "reg49h = 0x%02x ", uart);
-                       (void) pci_read_config_byte(dev, 0x4a, &uart);
-                       p += sprintf(p, "reg4ah = 0x%02x\n", uart);
-#endif /* DEBUG_AEC_REGS */
-               }
-       }
-       /* p - buffer must be less than 4k! */
-       len = (p - buffer) - offset;
-       *addr = buffer + offset;
-       
-       return len > count ? count : len;
-}
-#endif /* defined(DISPLAY_AEC62xx_TIMINGS) && defined(CONFIG_PROC_FS) */
 
 /*
  * TO DO: active tuning and correction of cards without a bios.
@@ -207,13 +95,9 @@ static u8 aec62xx_ratemask (ide_drive_t *drive)
        switch(hwif->pci_dev->device) {
                case PCI_DEVICE_ID_ARTOP_ATP865:
                case PCI_DEVICE_ID_ARTOP_ATP865R:
-#if 0
-                       mode = (hwif->INB(hwif->dma_master) & 0x10) ? 4 : 3;
-#else
                        mode = (hwif->INB(((hwif->channel) ?
                                        hwif->mate->dma_status :
                                        hwif->dma_status)) & 0x10) ? 4 : 3;
-#endif
                        break;
                case PCI_DEVICE_ID_ARTOP_ATP860:
                case PCI_DEVICE_ID_ARTOP_ATP860R:
@@ -240,10 +124,10 @@ static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed)
        unsigned long flags;
 
        local_irq_save(flags);
+       /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
        pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
        tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
-       SPLIT_BYTE(tmp0,tmp1,tmp2);
-       MAKE_WORD(d_conf,tmp1,tmp2);
+       d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
        pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
 
        tmp1 = 0x00;
@@ -268,6 +152,7 @@ static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed)
        unsigned long flags;
 
        local_irq_save(flags);
+       /* high 4-bits: Active, low 4-bits: Recovery */
        pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
        drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
        pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
@@ -329,36 +214,16 @@ static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
        struct hd_driveid *id   = drive->id;
 
        if ((id->capability & 1) && drive->autodma) {
-               /* Consult the list of known "bad" drives */
-               if (__ide_dma_bad_drive(drive))
-                       goto fast_ata_pio;
-               if (id->field_valid & 4) {
-                       if (id->dma_ultra & hwif->ultra_mask) {
-                               /* Force if Capable UltraDMA */
-                               int dma = config_chipset_for_dma(drive);
-                               if ((id->field_valid & 2) && !dma)
-                                       goto try_dma_modes;
-                       }
-               } else if (id->field_valid & 2) {
-try_dma_modes:
-                       if ((id->dma_mword & hwif->mwdma_mask) ||
-                           (id->dma_1word & hwif->swdma_mask)) {
-                               /* Force if Capable regular DMA modes */
-                               if (!config_chipset_for_dma(drive))
-                                       goto no_dma_set;
-                       }
-               } else if (__ide_dma_good_drive(drive) &&
-                          (id->eide_dma_time < 150)) {
-                       /* Consult the list of known "good" drives */
-                       if (!config_chipset_for_dma(drive))
-                               goto no_dma_set;
-               } else {
-                       goto fast_ata_pio;
+
+               if (ide_use_dma(drive)) {
+                       if (config_chipset_for_dma(drive))
+                               return hwif->ide_dma_on(drive);
                }
-               return hwif->ide_dma_on(drive);
+
+               goto fast_ata_pio;
+
        } else if ((id->capability & 8) || (id->field_valid & 2)) {
 fast_ata_pio:
-no_dma_set:
                aec62xx_tune_drive(drive, 5);
                return hwif->ide_dma_off_quietly(drive);
        }
@@ -377,39 +242,13 @@ static int aec62xx_irq_timeout (ide_drive_t *drive)
                case PCI_DEVICE_ID_ARTOP_ATP865:
                case PCI_DEVICE_ID_ARTOP_ATP865R:
                        printk(" AEC62XX time out ");
-#if 0
-                       {
-                               int i = 0;
-                               u8 reg49h = 0;
-                               pci_read_config_byte(HWIF(drive)->pci_dev, 0x49, &reg49h);
-                               for (i=0;i<256;i++)
-                                       pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h|0x10);
-                               pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h & ~0x10);
-                       }
-                       return 0;
-#endif
                default:
                        break;
        }
-#if 0
-       {
-               ide_hwif_t *hwif        = HWIF(drive);
-               struct pci_dev *dev     = hwif->pci_dev;
-               u8 tmp1 = 0, tmp2 = 0, mode6 = 0;
-
-               pci_read_config_byte(dev, 0x44, &tmp1);
-               pci_read_config_byte(dev, 0x45, &tmp2);
-               printk(" AEC6280 r44=%x r45=%x ",tmp1,tmp2);
-               mode6 = HWIF(drive)->INB(((hwif->channel) ?
-                                          hwif->mate->dma_status :
-                                          hwif->dma_status));
-               printk(" AEC6280 133=%x ", (mode6 & 0x10));
-       }
-#endif
        return 0;
 }
 
-static unsigned int __init init_chipset_aec62xx (struct pci_dev *dev, const char *name)
+static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
 {
        int bus_speed = system_bus_clock();
 
@@ -418,24 +257,30 @@ static unsigned int __init init_chipset_aec62xx (struct pci_dev *dev, const char
                printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name, dev->resource[PCI_ROM_RESOURCE].start);
        }
 
-#if defined(DISPLAY_AEC62XX_TIMINGS) && defined(CONFIG_PROC_FS)
-       aec_devs[n_aec_devs++] = dev;
-
-       if (!aec62xx_proc) {
-               aec62xx_proc = 1;
-               ide_pci_create_host_proc("aec62xx", aec62xx_get_info);
-       }
-#endif /* DISPLAY_AEC62XX_TIMINGS && CONFIG_PROC_FS */
-
        if (bus_speed <= 33)
                pci_set_drvdata(dev, (void *) aec6xxx_33_base);
        else
                pci_set_drvdata(dev, (void *) aec6xxx_34_base);
 
+       /* These are necessary to get AEC6280 Macintosh cards to work */
+       if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
+           (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
+               u8 reg49h = 0, reg4ah = 0;
+               /* Clear reset and test bits.  */
+               pci_read_config_byte(dev, 0x49, &reg49h);
+               pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
+               /* Enable chip interrupt output.  */
+               pci_read_config_byte(dev, 0x4a, &reg4ah);
+               pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
+               /* Enable burst mode. */
+               pci_read_config_byte(dev, 0x4a, &reg4ah);
+               pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
+       }
+
        return dev->irq;
 }
 
-static void __init init_hwif_aec62xx (ide_hwif_t *hwif)
+static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
 {
        hwif->autodma = 0;
        hwif->tuneproc = &aec62xx_tune_drive;
@@ -468,7 +313,7 @@ static void __init init_hwif_aec62xx (ide_hwif_t *hwif)
        hwif->drives[1].autodma = hwif->autodma;
 }
 
-static void __init init_dma_aec62xx (ide_hwif_t *hwif, unsigned long dmabase)
+static void __devinit init_dma_aec62xx(ide_hwif_t *hwif, unsigned long dmabase)
 {
        struct pci_dev *dev     = hwif->pci_dev;
 
@@ -490,12 +335,12 @@ static void __init init_dma_aec62xx (ide_hwif_t *hwif, unsigned long dmabase)
        ide_setup_dma(hwif, dmabase, 8);
 }
 
-static void __init init_setup_aec62xx (struct pci_dev *dev, ide_pci_device_t *d)
+static int __devinit init_setup_aec62xx(struct pci_dev *dev, ide_pci_device_t *d)
 {
-       ide_setup_pci_device(dev, d);
+       return ide_setup_pci_device(dev, d);
 }
 
-static void __init init_setup_aec6x80 (struct pci_dev *dev, ide_pci_device_t *d)
+static int __devinit init_setup_aec6x80(struct pci_dev *dev, ide_pci_device_t *d)
 {
        unsigned long bar4reg = pci_resource_start(dev, 4);
 
@@ -509,9 +354,61 @@ static void __init init_setup_aec6x80 (struct pci_dev *dev, ide_pci_device_t *d)
                        strcpy(d->name, "AEC6280R");
        }
 
-       ide_setup_pci_device(dev, d);
+       return ide_setup_pci_device(dev, d);
 }
 
+static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
+       {       /* 0 */
+               .name           = "AEC6210",
+               .init_setup     = init_setup_aec62xx,
+               .init_chipset   = init_chipset_aec62xx,
+               .init_hwif      = init_hwif_aec62xx,
+               .init_dma       = init_dma_aec62xx,
+               .channels       = 2,
+               .autodma        = AUTODMA,
+               .enablebits     = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
+               .bootable       = OFF_BOARD,
+       },{     /* 1 */
+               .name           = "AEC6260",
+               .init_setup     = init_setup_aec62xx,
+               .init_chipset   = init_chipset_aec62xx,
+               .init_hwif      = init_hwif_aec62xx,
+               .init_dma       = init_dma_aec62xx,
+               .channels       = 2,
+               .autodma        = NOAUTODMA,
+               .bootable       = OFF_BOARD,
+       },{     /* 2 */
+               .name           = "AEC6260R",
+               .init_setup     = init_setup_aec62xx,
+               .init_chipset   = init_chipset_aec62xx,
+               .init_hwif      = init_hwif_aec62xx,
+               .init_dma       = init_dma_aec62xx,
+               .channels       = 2,
+               .autodma        = AUTODMA,
+               .enablebits     = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
+               .bootable       = NEVER_BOARD,
+       },{     /* 3 */
+               .name           = "AEC6X80",
+               .init_setup     = init_setup_aec6x80,
+               .init_chipset   = init_chipset_aec62xx,
+               .init_hwif      = init_hwif_aec62xx,
+               .init_dma       = init_dma_aec62xx,
+               .channels       = 2,
+               .autodma        = AUTODMA,
+               .bootable       = OFF_BOARD,
+       },{     /* 4 */
+               .name           = "AEC6X80R",
+               .init_setup     = init_setup_aec6x80,
+               .init_chipset   = init_chipset_aec62xx,
+               .init_hwif      = init_hwif_aec62xx,
+               .init_dma       = init_dma_aec62xx,
+               .channels       = 2,
+               .autodma        = AUTODMA,
+               .enablebits     = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
+               .bootable       = OFF_BOARD,
+       }
+};
+
 /**
  *     aec62xx_init_one        -       called when a AEC is found
  *     @dev: the aec62xx device
@@ -525,10 +422,7 @@ static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_devi
 {
        ide_pci_device_t *d = &aec62xx_chipsets[id->driver_data];
 
-       if (dev->device != d->device)
-               BUG();
-       d->init_setup(dev, d);
-       return 0;
+       return d->init_setup(dev, d);
 }
 
 static struct pci_device_id aec62xx_pci_tbl[] = {
@@ -542,7 +436,7 @@ static struct pci_device_id aec62xx_pci_tbl[] = {
 MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
 
 static struct pci_driver driver = {
-       .name           = "AEC62xx IDE",
+       .name           = "AEC62xx_IDE",
        .id_table       = aec62xx_pci_tbl,
        .probe          = aec62xx_init_one,
 };