blob: e86af492158717afaa1b4eaf0b51632c61fb0bd9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* checkpir.c : This software is released under GPL
For Linuxbios use only
Aug 26 2001 , Nikolai Vladychevski, <niko@isl.net.mx>
*/
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <device/pci.h>
#include <pirq_routing.h>
#define PIRQ_SIGNATURE (('$' << 0) + ('P' << 8) + ('I' << 16) + ('R' << 24))
#define PIRQ_VERS 0x0100
struct irq_info se_arr[50];
struct irq_routing_table *rt;
int calc_checksum(struct irq_routing_table *rt)
{
long sum = 0, i;
uint8_t *addr, sum2 = 0;
addr = (uint8_t *) rt;
for (i = 0; i < rt->size; i++)
sum2 += addr[i];
return (sum2);
}
main()
{
uint8_t sum, newsum;
rt = (struct irq_routing_table *) &intel_irq_routing_table;
sum = calc_checksum(rt);
printf("Validating checksum, file: irq_tables.c that was in ./ at compile time...\n");
printf("(no other tests are done)\n");
if (!sum) {
printf("Checksum for IRQ Routing table is ok. You can use it in LinuxBios now\n");
} else {
newsum = rt->checksum - sum;
printf("BAD CHECKSUM for IRQ Routing table !!!!\n");
printf("If you want to make it valid, change the checksum to: %#x\n",
newsum);
}
}
|
