This commit was manufactured by cvs2svn to create tag
[linux-2.6.git] / drivers / ide / pci / aec62xx.c
index 36b19c8..d809594 100644 (file)
 
 #include "aec62xx.h"
 
-#if 0
+#if defined(DISPLAY_AEC62XX_TIMINGS) && defined(CONFIG_PROC_FS)
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static u8 aec62xx_proc = 0;
+
+#define AEC_MAX_DEVS           5
+
+static struct pci_dev *aec_devs[AEC_MAX_DEVS];
+static int n_aec_devs;
+
+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;
+
+               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)",
                                (c1&0x40)?((art&0xc0)?"UDMA":" DMA"):" PIO",
                                (art&0x80)?"2":(art&0x40)?"1":"0");
                } else {
-#endif
+                       /*
+                        * 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":"?");
+               }
+       }
+       /* 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.
@@ -189,16 +286,36 @@ static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
        struct hd_driveid *id   = drive->id;
 
        if ((id->capability & 1) && drive->autodma) {
-
-               if (ide_use_dma(drive)) {
-                       if (config_chipset_for_dma(drive))
-                               return hwif->ide_dma_on(drive);
+               /* 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;
                }
-
-               goto fast_ata_pio;
-
+               return hwif->ide_dma_on(drive);
        } 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);
        }
@@ -258,6 +375,15 @@ static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const ch
                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