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1 | #include <sys/io.h> | |
2 | #include <reg-82801b.h> | |
3 | #include <string.h> | |
4 | #include <stdint.h> | |
5 | #include <stdlib.h> | |
6 | ||
7 | static uint16_t _get_PMBASE() | |
8 | { | |
9 | static long pmbase = -1; | |
10 | ||
11 | if (pmbase == -1) | |
12 | pmbase = pci_read32(ICH2_LPC_BUS, ICH2_LPC_DEV, ICH2_LPC_FN, ICH2_LPC_PCI_PMBASE) & ICH2_PMBASE_MASK; | |
13 | ||
14 | return pmbase; | |
15 | } | |
16 | ||
17 | typedef struct { | |
18 | uint32_t signature; | |
19 | uint32_t type; | |
20 | uint8_t data[]; | |
21 | } packet_t; | |
22 | ||
23 | extern unsigned int poke(unsigned long addr, unsigned long * value); | |
24 | ||
25 | int main(int argc, char **argv) | |
26 | { | |
27 | unsigned int res; | |
28 | packet_t * packet = (packet_t *)memalign(4096, sizeof(packet_t)); | |
29 | ||
30 | packet->signature = 0x1BADD00D; | |
31 | packet->type = 42; | |
32 | strcpy(packet->data, "hello, world!"); | |
33 | ||
34 | if (iopl(3) < 0) | |
35 | { | |
36 | perror("iopl"); | |
37 | return 1; | |
38 | } | |
39 | ||
40 | res = poke(_get_PMBASE() + 0x04, (void *)packet); | |
41 | printf("returned %p\n", res); | |
42 | ||
43 | if (res == 42) { | |
44 | int i; | |
45 | for (i = 0; i < 96; i++) | |
46 | printf("%s\n", packet->data + i * 41); | |
47 | } | |
48 | } |