| | 1 | #include <io.h> |
| | 2 | #include <smram.h> |
| | 3 | #include <video_defines.h> |
| | 4 | #include <minilib.h> |
| | 5 | #include <smi.h> |
| | 6 | |
| | 7 | char thestr[512]; |
| | 8 | |
| | 9 | #include "vga-overlay.h" |
| | 10 | |
| | 11 | unsigned int counter = 0; |
| | 12 | unsigned long pcisave; |
| | 13 | unsigned char vgasave; |
| | 14 | |
| | 15 | void pci_dump() { |
| | 16 | char s[40]; |
| | 17 | unsigned long cts; |
| | 18 | static int curdev = 0; /* 0 if kbd, 1 if mouse */ |
| | 19 | |
| | 20 | cts = inl(0x84C); |
| | 21 | |
| | 22 | outl(0x848, 0x0); |
| | 23 | outl(0x840, 0x0); |
| | 24 | switch(cts&0xF0000) |
| | 25 | { |
| | 26 | case 0x20000: |
| | 27 | { |
| | 28 | unsigned char b; |
| | 29 | b = inb(cts & 0xFFFF); |
| | 30 | dologf("READ: %08x (%02x)", cts, b); |
| | 31 | if ((cts & 0xFFFF) == 0x64) |
| | 32 | curdev = (b & 0x20) ? 1 : 0; |
| | 33 | if ((curdev == 0) && ((cts & 0xFFFF) == 0x60) && (b == 0x01)) |
| | 34 | outb(0xCF9, 0x4); |
| | 35 | *(unsigned char*)0xAFFD0 /* EAX */ = b; |
| | 36 | break; |
| | 37 | } |
| | 38 | case 0x30000: |
| | 39 | { |
| | 40 | unsigned char b; |
| | 41 | |
| | 42 | strcpy(s, "WRITxxxxxxxxxxxxxxxx"); |
| | 43 | b = *(unsigned char*)0xAFFD0 /* EAX */; |
| | 44 | tohex(s+4, cts); |
| | 45 | tohex(s+12, b); |
| | 46 | dolog(s); |
| | 47 | outb(cts & 0xFFFF, b); |
| | 48 | break; |
| | 49 | } |
| | 50 | default: |
| | 51 | dolog("Unhandled PCI cycle"); |
| | 52 | } |
| | 53 | |
| | 54 | outl(0x848, 0x1000); |
| | 55 | outl(0x840, 0x0100); |
| | 56 | } |
| | 57 | |
| | 58 | void smi_entry(void) |
| | 59 | { |
| | 60 | pcisave = inl(0xCF8); |
| | 61 | vgasave = inb(0x3D4); |
| | 62 | |
| | 63 | counter++; |
| | 64 | outb(0x80, (counter & 0xFF)); |
| | 65 | |
| | 66 | sprintf(thestr, "15-412! %08x %08x", smi_status(), counter); |
| | 67 | strblit(thestr, 0, 0); |
| | 68 | |
| | 69 | if (inl(0x834) & 0x20) |
| | 70 | dolog("Warning: unhandled APM access"); |
| | 71 | if (inl(0x834) & 0x1000) |
| | 72 | { |
| | 73 | if (inl(0x844) & 0x1000) /* devact_sts */ |
| | 74 | { |
| | 75 | pci_dump(); |
| | 76 | outl(0x844, 0x1000); /* ack it */ |
| | 77 | } |
| | 78 | } |
| | 79 | if (inl(0x834) & 0x4000) |
| | 80 | dolog("Long periodic timer"); |
| | 81 | if (inl(0x840) & 0x1000) |
| | 82 | { |
| | 83 | pci_dump(); |
| | 84 | outl(0x840, 0x1100); |
| | 85 | outl(0x840, 0x0100); |
| | 86 | } |
| | 87 | if (inl(0x834) & ~(0x4160)) |
| | 88 | dologf("Unknown: %08x", inl(0x834) & ~(0x140)); |
| | 89 | |
| | 90 | outlog(); |
| | 91 | |
| | 92 | outl(0xCF8, pcisave); |
| | 93 | outb(0x3D4, vgasave); |
| | 94 | |
| | 95 | outl(0x848, 0x1000); |
| | 96 | outl(0x834, /*0x40*/0xFFFF); // ack the periodic IRQ |
| | 97 | outb(0x830, (inb(0x830) | 0x2) & ~0x40); |
| | 98 | outb(0x830, inb(0x830) | 0x40); |
| | 99 | |
| | 100 | } |
| | 101 | |
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