]> Joshua Wise's Git repositories - netwatch.git/blob - tools/poke-rls.c
First pass of 410watch UI code.
[netwatch.git] / tools / poke-rls.c
1 /* poke-rls.c
2  * Linux-side communication packet utility
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
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 = 42;
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 }
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