- int speed[4], cycle[4], setup[4], active[4], recover[4], den[4],
- uen[4], udma[4], umul[4], active8b[4], recover8b[4];
- struct pci_dev *dev = bmide_dev;
- unsigned int v, u, i;
- int len;
- u16 c, w;
- u8 t, x;
- char *p = buffer;
-
- via_print("----------VIA BusMastering IDE Configuration"
- "----------------");
-
- via_print("Driver Version: 3.38");
- via_print("South Bridge: VIA %s",
- via_config->name);
-
- pci_read_config_byte(isa_dev, PCI_REVISION_ID, &t);
- pci_read_config_byte(dev, PCI_REVISION_ID, &x);
- via_print("Revision: ISA %#x IDE %#x", t, x);
- via_print("Highest DMA rate: %s",
- via_dma[via_config->flags & VIA_UDMA]);
-
- via_print("BM-DMA base: %#lx", via_base);
- via_print("PCI clock: %d.%dMHz",
- via_clock / 1000, via_clock / 100 % 10);
-
- pci_read_config_byte(dev, VIA_MISC_1, &t);
- via_print("Master Read Cycle IRDY: %dws",
- (t & 64) >> 6);
- via_print("Master Write Cycle IRDY: %dws",
- (t & 32) >> 5);
- via_print("BM IDE Status Register Read Retry: %s",
- (t & 8) ? "yes" : "no");
-
- pci_read_config_byte(dev, VIA_MISC_3, &t);
- via_print("Max DRDY Pulse Width: %s%s",
- via_control3[(t & 0x03)], (t & 0x03) ? " PCI clocks" : "");
-
- via_print("-----------------------Primary IDE"
- "-------Secondary IDE------");
- via_print("Read DMA FIFO flush: %10s%20s",
- (t & 0x80) ? "yes" : "no", (t & 0x40) ? "yes" : "no");
- via_print("End Sector FIFO flush: %10s%20s",
- (t & 0x20) ? "yes" : "no", (t & 0x10) ? "yes" : "no");
-
- pci_read_config_byte(dev, VIA_IDE_CONFIG, &t);
- via_print("Prefetch Buffer: %10s%20s",
- (t & 0x80) ? "yes" : "no", (t & 0x20) ? "yes" : "no");
- via_print("Post Write Buffer: %10s%20s",
- (t & 0x40) ? "yes" : "no", (t & 0x10) ? "yes" : "no");
-
- pci_read_config_byte(dev, VIA_IDE_ENABLE, &t);
- via_print("Enabled: %10s%20s",
- (t & 0x02) ? "yes" : "no", (t & 0x01) ? "yes" : "no");
-
- c = inb(via_base + 0x02) | (inb(via_base + 0x0a) << 8);
- via_print("Simplex only: %10s%20s",
- (c & 0x80) ? "yes" : "no", (c & 0x8000) ? "yes" : "no");
-
- via_print("Cable Type: %10s%20s",
- (via_80w & 1) ? "80w" : "40w", (via_80w & 2) ? "80w" : "40w");
-
- via_print("-------------------drive0----drive1"
- "----drive2----drive3-----");
-
- pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
- pci_read_config_dword(dev, VIA_DRIVE_TIMING, &v);
- pci_read_config_word(dev, VIA_8BIT_TIMING, &w);
-
- if (via_config->flags & VIA_UDMA)
- pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
- else u = 0;
-
- for (i = 0; i < 4; i++) {
-
- setup[i] = ((t >> ((3 - i) << 1)) & 0x3) + 1;
- recover8b[i] = ((w >> ((1 - (i >> 1)) << 3)) & 0xf) + 1;
- active8b[i] = ((w >> (((1 - (i >> 1)) << 3) + 4)) & 0xf) + 1;
- active[i] = ((v >> (((3 - i) << 3) + 4)) & 0xf) + 1;
- recover[i] = ((v >> ((3 - i) << 3)) & 0xf) + 1;
- udma[i] = ((u >> ((3 - i) << 3)) & 0x7) + 2;
- umul[i] = ((u >> (((3 - i) & 2) << 3)) & 0x8) ? 1 : 2;
- uen[i] = ((u >> ((3 - i) << 3)) & 0x20);
- den[i] = (c & ((i & 1) ? 0x40 : 0x20) << ((i & 2) << 2));
-
- speed[i] = 2 * via_clock / (active[i] + recover[i]);
- cycle[i] = 1000000 * (active[i] + recover[i]) / via_clock;
-
- if (!uen[i] || !den[i])
- continue;
-
- switch (via_config->flags & VIA_UDMA) {
-
- case VIA_UDMA_33:
- speed[i] = 2 * via_clock / udma[i];
- cycle[i] = 1000000 * udma[i] / via_clock;
- break;
-
- case VIA_UDMA_66:
- speed[i] = 4 * via_clock / (udma[i] * umul[i]);
- cycle[i] = 500000 * (udma[i] * umul[i]) / via_clock;
- break;
-
- case VIA_UDMA_100:
- speed[i] = 6 * via_clock / udma[i];
- cycle[i] = 333333 * udma[i] / via_clock;
- break;
-
- case VIA_UDMA_133:
- speed[i] = 8 * via_clock / udma[i];
- cycle[i] = 250000 * udma[i] / via_clock;
- break;
- }
- }
-
- via_print_drive("Transfer Mode: ", "%10s",
- den[i] ? (uen[i] ? "UDMA" : "DMA") : "PIO");
-
- via_print_drive("Address Setup: ", "%8dns",
- 1000000 * setup[i] / via_clock);
- via_print_drive("Cmd Active: ", "%8dns",
- 1000000 * active8b[i] / via_clock);
- via_print_drive("Cmd Recovery: ", "%8dns",
- 1000000 * recover8b[i] / via_clock);
- via_print_drive("Data Active: ", "%8dns",
- 1000000 * active[i] / via_clock);
- via_print_drive("Data Recovery: ", "%8dns",
- 1000000 * recover[i] / via_clock);
- via_print_drive("Cycle Time: ", "%8dns",
- cycle[i]);
- via_print_drive("Transfer Rate: ", "%4d.%dMB/s",
- speed[i] / 1000, speed[i] / 100 % 10);
-
- /* hoping it is less than 4K... */
- len = (p - buffer) - offset;
- *addr = buffer + offset;
-
- return len > count ? count : len;
-}
-
-#endif /* DISPLAY_VIA_TIMINGS && CONFIG_PROC_FS */