git.joshuawise.com / netwatch.git / blame
| Commit | Line | Data |
|---|---|---|
| 98e930a2 JP |
1 | /* pci.c |
| 2 | * General-purpose PCI probe routines | |
| 3 | * NetWatch system management mode administration console | |
| 4 | * | |
| 5 | * Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved. | |
| 6 | * This program is free software; you can redistribute and/or modify it under | |
| 7 | * the terms found in the file LICENSE in the root of this source tree. | |
| 8 | * | |
| 9 | */ | |
| 10 | ||
| 83a02556 JW |
11 | #include <pci.h> |
| 12 | #include <output.h> | |
| 13 | ||
| e9d467b3 | 14 | int pci_probe(pci_probe_fn_t probe, void *data) |
| 83a02556 JW |
15 | { |
| 16 | int devsfound = 0; | |
| 17 | pci_dev_t pdev; | |
| 18 | unsigned int bus; | |
| 19 | unsigned int dev; | |
| 20 | unsigned int fn; | |
| 21 | ||
| 22 | for (bus = 0; bus < 0x100; bus++) | |
| 23 | for (dev = 0; dev < 0x20; dev++) | |
| e9d467b3 JW |
24 | { |
| 25 | if (pci_read32(bus, dev, 0, 0) == 0xFFFFFFFF) | |
| 26 | continue; | |
| 27 | for (fn = 0; fn < 8; fn++) | |
| 28 | { | |
| 29 | int bar; | |
| 30 | ||
| 31 | if (pci_read32(bus, dev, fn, 0) == 0xFFFFFFFF) | |
| 32 | continue; | |
| 33 | ||
| 34 | if ((fn != 0) && !(pci_read8(bus, dev, 0, 0x0E) & 0x80)) | |
| 35 | continue; | |
| 36 | ||
| 37 | pdev.bus = bus; | |
| 38 | pdev.dev = dev; | |
| 39 | pdev.fn = fn; | |
| 40 | pdev.vid = pci_read16(bus, dev, fn, 0); | |
| 41 | pdev.did = pci_read16(bus, dev, fn, 2); | |
| 42 | ||
| 43 | for (bar = 0; bar < 6; bar++) | |
| 83a02556 | 44 | { |
| e9d467b3 JW |
45 | unsigned long bardat = pci_read32(bus, dev, fn, 0x10 + bar*4); |
| 46 | if (bardat == 0) | |
| 47 | { | |
| 48 | pdev.bars[bar].type = PCI_BAR_NONE; | |
| 83a02556 | 49 | continue; |
| e9d467b3 JW |
50 | } |
| 51 | if (bardat & 1) | |
| 83a02556 | 52 | { |
| e9d467b3 JW |
53 | pdev.bars[bar].type = PCI_BAR_IO; |
| 54 | pdev.bars[bar].addr = bardat & ~0x3; | |
| 55 | } else { | |
| 56 | pdev.bars[bar].prefetchable = (bardat >> 3) & 1; | |
| 57 | switch ((bardat >> 1) & 0x3) | |
| 83a02556 | 58 | { |
| e9d467b3 JW |
59 | case 0: |
| 60 | pdev.bars[bar].type = PCI_BAR_MEMORY32; | |
| 61 | pdev.bars[bar].addr = bardat & ~0xF; | |
| 62 | break; | |
| 63 | case 2: | |
| 64 | pdev.bars[bar].type = PCI_BAR_MEMORY64; | |
| 65 | bar++; | |
| 66 | pdev.bars[bar].type = PCI_BAR_NONE; | |
| 67 | break; | |
| 68 | default: | |
| 83a02556 JW |
69 | pdev.bars[bar].type = PCI_BAR_NONE; |
| 70 | continue; | |
| 71 | } | |
| 83a02556 | 72 | } |
| 83a02556 | 73 | } |
| e9d467b3 JW |
74 | |
| 75 | devsfound += probe(&pdev, data); | |
| 76 | } | |
| 77 | } | |
| 83a02556 JW |
78 | |
| 79 | return devsfound; | |
| 80 | } | |
| 81 | ||
| e9d467b3 | 82 | static int _enumfn(pci_dev_t *pdev, void *data) |
| 83a02556 JW |
83 | { |
| 84 | int bar; | |
| 85 | ||
| 86 | outputf("Found device: %02x:%02x.%1x: %04X:%04X", | |
| 87 | pdev->bus, pdev->dev, pdev->fn, | |
| 88 | pdev->vid, pdev->did); | |
| 89 | for (bar = 0; bar < 6; bar++) | |
| 90 | { | |
| 91 | switch (pdev->bars[bar].type) | |
| 92 | { | |
| 93 | case PCI_BAR_IO: | |
| 94 | outputf(" BAR %d: I/O, Addr %04x", bar, pdev->bars[bar].addr); | |
| 95 | break; | |
| 96 | case PCI_BAR_MEMORY32: | |
| 97 | outputf(" BAR %d: Mem32, Addr %04x", bar, pdev->bars[bar].addr); | |
| 98 | break; | |
| 99 | case PCI_BAR_MEMORY64: | |
| 100 | outputf(" BAR %d: Mem64, Addr %04x", bar, pdev->bars[bar].addr); | |
| 101 | break; | |
| 102 | default: | |
| 103 | break; | |
| 104 | } | |
| 105 | } | |
| 106 | return 0; | |
| 107 | } | |
| 108 | ||
| 109 | void pci_bus_enum() | |
| 110 | { | |
| e9d467b3 | 111 | pci_probe(_enumfn, 0x0); |
| 83a02556 JW |
112 | } |
| 113 | ||
| e9d467b3 JW |
114 | static int _probefn(pci_dev_t *dev, void *d) |
| 115 | { | |
| 116 | pci_driver_t *driver = d; | |
| 117 | int i; | |
| 118 | ||
| 119 | for (i = 0; i < driver->id_count; i++) | |
| 120 | if ((dev->vid == driver->ids[i].vid) && (dev->did == driver->ids[i].did)) | |
| 121 | { | |
| c2e34447 | 122 | outputf("Probing PCI device: %s", driver->ids[i].name ? driver->ids[i].name : driver->name); |
| e9d467b3 JW |
123 | return driver->probe(dev, d); |
| 124 | } | |
| 125 | return 0; | |
| 126 | } | |
| 127 | ||
| 34a7d0d2 | 128 | int pci_probe_driver(pci_driver_t *driver) |
| e9d467b3 | 129 | { |
| 34a7d0d2 | 130 | return pci_probe(_probefn, driver); |
| e9d467b3 | 131 | } |