git.joshuawise.com / netwatch.git / blame
| Commit | Line | Data |
|---|---|---|
| 98e930a2 JP |
1 | /* frob-rls.c |
| 2 | * GBL_RLS flag manipulator. | |
| 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 | ||
| 50d89a31 JP |
11 | #include <sys/io.h> |
| 12 | #include <reg-82801b.h> | |
| 13 | #include <string.h> | |
| 14 | #include <stdint.h> | |
| 15 | #include <stdlib.h> | |
| 16 | ||
| 17 | static uint16_t _get_PMBASE() | |
| 18 | { | |
| 19 | static long pmbase = -1; | |
| 20 | ||
| 21 | if (pmbase == -1) | |
| 22 | pmbase = pci_read32(ICH2_LPC_BUS, ICH2_LPC_DEV, ICH2_LPC_FN, ICH2_LPC_PCI_PMBASE) & ICH2_PMBASE_MASK; | |
| 23 | ||
| 24 | return pmbase; | |
| 25 | } | |
| 26 | ||
| 27 | typedef struct { | |
| 28 | uint32_t signature; | |
| 29 | uint32_t type; | |
| 30 | uint8_t data[]; | |
| 31 | } packet_t; | |
| 32 | ||
| 33 | extern unsigned int poke(unsigned long addr, unsigned long * value); | |
| 34 | ||
| 35 | int main(int argc, char **argv) | |
| 36 | { | |
| 37 | unsigned int res; | |
| 38 | packet_t * packet = (packet_t *)memalign(4096, sizeof(packet_t)); | |
| 39 | ||
| 40 | packet->signature = 0x1BADD00D; | |
| 41 | packet->type = 0xAA; | |
| 42 | strcpy(packet->data, "hello, world!"); | |
| 43 | ||
| 44 | if (iopl(3) < 0) | |
| 45 | { | |
| 46 | perror("iopl"); | |
| 47 | return 1; | |
| 48 | } | |
| 49 | ||
| 50 | res = poke(_get_PMBASE() + 0x04, (void *)packet); | |
| 51 | printf("returned %p\n", res); | |
| 52 | ||
| 53 | if (res == 42) { | |
| 54 | int i; | |
| 55 | for (i = 0; i < 96; i++) | |
| 56 | printf("%s\n", packet->data + i * 41); | |
| 57 | } | |
| 58 | } |