]> Joshua Wise's Git repositories - netwatch.git/blob - aseg/counter.c
SMRAM interface changes, and a few misc. header changes.
[netwatch.git] / aseg / counter.c
1 #include <io.h>
2
3 unsigned int counter = 0;
4 unsigned long pcisave;
5 unsigned char vgasave;
6 unsigned char thestr[512];
7 unsigned char logents[4][41] = {0};
8
9 unsigned char vgaread(unsigned char idx)
10 {
11         outb(0x3D4, idx);
12         inb(0x3D5);
13 }
14
15 void strblit(char *src, int r, int c)
16 {
17         char *destp = (char*)(0xB8000UL | (((unsigned int)vgaread(0xC)) << 9) | (((unsigned int)vgaread(0xD)) << 1)) + r*80*2 + c*2;
18         unsigned char smramc;
19         
20         smramc = pci_read8(0, 0, 0, 0x70);
21         pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) | 0x08);
22         while (*src)
23         {
24                 *(destp++) = *(src++);
25                 *(destp++) = 0x1F;
26         }
27         pci_write8(0, 0, 0, 0x70, smramc);
28 }
29
30 void outlog()
31 {
32         int y, x;
33         unsigned char smramc;
34         unsigned char *basep = (char*)(0xB8000UL | (((unsigned int)vgaread(0xC)) << 9) | (((unsigned int)vgaread(0xD)) << 1));
35         
36         smramc = pci_read8(0, 0, 0, 0x70);
37         pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) | 0x08);
38         for (y = 0; y < 4; y++)
39                 for (x = 40; x < 80; x++)
40                 {
41                         basep[y*80*2+x*2] = ' ';
42                         basep[y*80*2+x*2+1] = 0x1F;
43                 }
44         pci_write8(0, 0, 0, 0x70, smramc);
45         
46         for (y = 0; y < 4; y++)
47                 strblit(logents[y], y, 40);
48         
49 }
50
51 void dolog(char *s)
52 {
53         memmove(logents[0], logents[1], sizeof(logents[0])*3);
54         strcpy(logents[3], s);
55 }
56
57 void __start (void)
58 {
59         unsigned char smramc;
60         static int first = 1;
61         
62         pcisave = inl(0xCF8);
63         vgasave = inb(0x3D4);
64         
65         if (first)
66         {
67                 first = 0;
68                 dolog("NetWatch running...");
69         }
70
71         counter++;
72         outb(0x80, (counter & 0xFF));
73         
74         strcpy(thestr, "15-412! xxxxxxxx xxxxxxxx");
75         tohex(thestr + 8, inl(0x0834));
76         tohex(thestr + 17, counter);
77         strblit(thestr, 0, 0);
78         
79         if (inl(0x834) & 0x20)
80                 dolog("Warning: unhandled APM access");
81         if (inl(0x834) & 0x4000)
82                 dolog("Long periodic timer");
83         if (inl(0x834) & ~(0x4160))
84         {
85                 unsigned char s[40];
86                 strcpy(s, "Unknown: xxxxxxxx");
87                 tohex(s + 9, inl(0x834) & ~(0x140));
88                 dolog(s);
89         }
90         
91         outlog();
92         
93         outl(0xCF8, pcisave);
94         outb(0x3D4, vgasave);
95         
96         outl(0x834, /*0x40*/0xFFFF);    // ack the periodic IRQ
97         outb(0x830, (inb(0x830) | 0x2) & ~0x40);
98         outb(0x830, inb(0x830) | 0x40);
99         
100 }
101
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