| | 1 | #include <io.h> |
| | 2 | #include <smram.h> |
| | 3 | #include <video_defines.h> |
| | 4 | #include <minilib.h> |
| | 5 | #include <smi.h> |
| | 6 | #include "vga-overlay.h" |
| | 7 | #include "packet.h" |
| | 8 | |
| | 9 | unsigned int counter = 0; |
| | 10 | unsigned long pcisave; |
| | 11 | unsigned char vgasave; |
| | 12 | |
| | 13 | void pci_dump() { |
| | 14 | unsigned long cts; |
| | 15 | static int curdev = 0; /* 0 if kbd, 1 if mouse */ |
| | 16 | |
| | 17 | cts = inl(0x84C); |
| | 18 | |
| | 19 | outl(0x848, 0x0); |
| | 20 | outl(0x840, 0x0); |
| | 21 | switch(cts&0xF0000) |
| | 22 | { |
| | 23 | case 0x20000: |
| | 24 | { |
| | 25 | unsigned char b; |
| | 26 | b = inb(cts & 0xFFFF); |
| | 27 | dologf("READ: %08x (%02x)", cts, b); |
| | 28 | if ((cts & 0xFFFF) == 0x64) |
| | 29 | curdev = (b & 0x20) ? 1 : 0; |
| | 30 | if ((curdev == 0) && ((cts & 0xFFFF) == 0x60) && (b == 0x01)) |
| | 31 | outb(0xCF9, 0x4); |
| | 32 | *(unsigned char*)0xAFFD0 /* EAX */ = b; |
| | 33 | break; |
| | 34 | } |
| | 35 | case 0x30000: |
| | 36 | { |
| | 37 | unsigned char b; |
| | 38 | |
| | 39 | b = *(unsigned char*)0xAFFD0 /* EAX */; |
| | 40 | dologf("WRITE: %08x (%02x)", cts, b); |
| | 41 | outb(cts & 0xFFFF, b); |
| | 42 | break; |
| | 43 | } |
| | 44 | default: |
| | 45 | dolog("Unhandled PCI cycle"); |
| | 46 | } |
| | 47 | |
| | 48 | outl(0x848, 0x1000); |
| | 49 | outl(0x840, 0x0100); |
| | 50 | } |
| | 51 | |
| | 52 | void timer_handler(smi_event_t ev) |
| | 53 | { |
| | 54 | static unsigned int ticks = 0; |
| | 55 | |
| | 56 | smi_disable_event(SMI_EVENT_FAST_TIMER); |
| | 57 | smi_enable_event(SMI_EVENT_FAST_TIMER); |
| | 58 | |
| | 59 | outb(0x80, (ticks++) & 0xFF); |
| | 60 | |
| | 61 | outlog(); |
| | 62 | } |
| | 63 | |
| | 64 | void kbc_handler(smi_event_t ev) |
| | 65 | { |
| | 66 | pci_dump(); |
| | 67 | } |
| | 68 | |
| | 69 | void gbl_rls_handler(smi_event_t ev) |
| | 70 | { |
| | 71 | unsigned long ecx; |
| | 72 | |
| | 73 | ecx = *(unsigned long*)0xAFFD4; |
| | 74 | |
| | 75 | packet_t * packet = check_packet(ecx); |
| | 76 | if (!packet) |
| | 77 | { |
| | 78 | dologf("WARN: bad packet at %08x", ecx); |
| | 79 | return; |
| | 80 | } |
| | 81 | |
| | 82 | dologf("Got packet: type %08x", packet->type); |
| | 83 | |
| | 84 | if (packet->type == 42) { |
| | 85 | dump_log((char *)packet->data); |
| | 86 | *(unsigned long*)0xAFFD4 = 42; |
| | 87 | } else { |
| | 88 | *(unsigned long*)0xAFFD4 = 0x2BADD00D; |
| | 89 | } |
| | 90 | } |
| | 91 | |
| | 92 | void smi_entry(void) |
| | 93 | { |
| | 94 | char statstr[512]; |
| | 95 | |
| | 96 | pcisave = inl(0xCF8); |
| | 97 | vgasave = inb(0x3D4); |
| | 98 | |
| | 99 | counter++; |
| | 100 | sprintf(statstr, "15-412! %08x %08x", smi_status(), counter); |
| | 101 | strblit(statstr, 0, 0); |
| | 102 | |
| | 103 | extern void do_bother(); |
| | 104 | do_bother(); |
| | 105 | |
| | 106 | if (inl(0x840) & 0x1000) |
| | 107 | { |
| | 108 | pci_dump(); |
| | 109 | outl(0x840, 0x1100); |
| | 110 | outl(0x840, 0x0100); |
| | 111 | } |
| | 112 | |
| | 113 | smi_poll(); |
| | 114 | |
| | 115 | outl(0xCF8, pcisave); |
| | 116 | outb(0x3D4, vgasave); |
| | 117 | } |
| | 118 | |
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