#include <io.h>
+#include <minilib.h>
-char counter = 0;
+unsigned int counter = 0;
unsigned long pcisave;
unsigned char vgasave;
unsigned char thestr[512];
-
-void memcpy(char *dst, char *src, int c)
-{
- while (c--)
- *(dst++) = *(src++);
-}
-
-void strcpy(char *dst, char *src)
-{
- while (*src)
- *(dst++) = *(src++);
-}
+unsigned char logents[4][41] = {0};
unsigned char vgaread(unsigned char idx)
{
inb(0x3D5);
}
-void strblit(char *src)
+void strblit(char *src, int r, int c)
{
- char *destp = (char*)(0xB8000 | (vgaread(0xC) << 5) | (vgaread(0xD) << 1));
+ char *destp = (char*)(0xB8000UL | (((unsigned int)vgaread(0xC)) << 9) | (((unsigned int)vgaread(0xD)) << 1)) + r*80*2 + c*2;
+ unsigned char smramc;
+
+ smramc = pci_read8(0, 0, 0, 0x70);
+ pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) | 0x08);
while (*src)
{
*(destp++) = *(src++);
*(destp++) = 0x1F;
}
+ pci_write8(0, 0, 0, 0x70, smramc);
+}
+
+void outlog()
+{
+ int y, x;
+ unsigned char smramc;
+ unsigned char *basep = (char*)(0xB8000UL | (((unsigned int)vgaread(0xC)) << 9) | (((unsigned int)vgaread(0xD)) << 1));
+
+ smramc = pci_read8(0, 0, 0, 0x70);
+ pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) | 0x08);
+ for (y = 0; y < 4; y++)
+ for (x = 40; x < 80; x++)
+ {
+ basep[y*80*2+x*2] = ' ';
+ basep[y*80*2+x*2+1] = 0x1F;
+ }
+ pci_write8(0, 0, 0, 0x70, smramc);
+
+ for (y = 0; y < 4; y++)
+ strblit(logents[y], y, 40);
+
+}
+
+void dolog(char *s)
+{
+ memmove(logents[0], logents[1], sizeof(logents[0])*3);
+ strcpy(logents[3], s);
}
void __start (void)
{
unsigned char smramc;
+ static int first = 1;
pcisave = inl(0xCF8);
vgasave = inb(0x3D4);
+
+ if (first)
+ {
+ first = 0;
+ dolog("NetWatch running...");
+ }
counter++;
- outb(0x80, counter);
+ outb(0x80, (counter & 0xFF));
- strcpy(thestr, "15-412!");
+ strcpy(thestr, "15-412! xxxxxxxx xxxxxxxx");
+ tohex(thestr + 8, inl(0x0834));
+ tohex(thestr + 17, counter);
+ strblit(thestr, 0, 0);
- smramc = pci_read8(0, 0, 0, 0x70);
- pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) | 0x08);
- strblit(thestr);
- pci_write8(0, 0, 0, 0x70, smramc);
+ if (inl(0x834) & 0x20)
+ dolog("Warning: unhandled APM access");
+ if (inl(0x834) & 0x4000)
+ dolog("Long periodic timer");
+ if (inl(0x834) & ~(0x4160))
+ {
+ unsigned char s[40];
+ strcpy(s, "Unknown: xxxxxxxx");
+ tohex(s + 9, inl(0x834) & ~(0x140));
+ dolog(s);
+ }
+
+ outlog();
outl(0xCF8, pcisave);
outb(0x3D4, vgasave);
+
+ outl(0x834, /*0x40*/0xFFFF); // ack the periodic IRQ
+ outb(0x830, (inb(0x830) | 0x2) & ~0x40);
+ outb(0x830, inb(0x830) | 0x40);
+
}