#include <io.h>
+ #include <smram.h>
+ #include <video_defines.h>
+ #include <minilib.h>
unsigned int counter = 0;
unsigned long pcisave;
unsigned char vgasave;
- unsigned char thestr[512];
- unsigned char logents[4][41] = {0};
+ char thestr[512];
+ char logents[4][41] = {{0}};
- unsigned char vgaread(unsigned char idx)
+ #define VRAM_BASE 0xA0000UL
+ #define TEXT_CONSOLE_OFFSET 0x18000UL
+
+ #define TEXT_CONSOLE_BASE (VRAM_BASE + TEXT_CONSOLE_OFFSET)
+
+ #define COLOR 0x1F
+
+ unsigned char vga_read(unsigned char idx)
+ {
+ outb(CRTC_IDX_REG, idx);
+ return inb(CRTC_DATA_REG);
+ }
+
+ char * vga_base()
{
- outb(0x3D4, idx);
- inb(0x3D5);
+ return (char *) (
+ TEXT_CONSOLE_BASE
+ | (((unsigned int) vga_read(CRTC_START_ADDR_LSB_IDX)) << 9)
+ | (((unsigned int) vga_read(CRTC_START_ADDR_MSB_IDX)) << 1)
+ );
}
- void strblit(char *src, int r, int c)
+ void strblit(char *src, int row, int col)
{
- char *destp = (char*)(0xB8000UL | (((unsigned int)vgaread(0xC)) << 9) | (((unsigned int)vgaread(0xD)) << 1)) + r*80*2 + c*2;
- unsigned char smramc;
+ char *destp = vga_base() + row * 80 * 2 + col * 2;
+ smram_state_t old_state = smram_save_state();
+
+ smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
- smramc = pci_read8(0, 0, 0, 0x70);
- pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) | 0x08);
while (*src)
{
*(destp++) = *(src++);
- *(destp++) = 0x1F;
+ *(destp++) = COLOR;
}
- pci_write8(0, 0, 0, 0x70, smramc);
+
+ smram_restore_state(old_state);
}
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);
+ char *basep = vga_base();
+
+ smram_state_t old_state = smram_save_state();
+
+ smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
+
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);
-
+
+ smram_restore_state(old_state);
+
for (y = 0; y < 4; y++)
strblit(logents[y], y, 40);
-
}
void dolog(char *s)
}
void pci_dump() {
- unsigned char s[40];
+ char s[40];
unsigned long cts;
static int curdev = 0; /* 0 if kbd, 1 if mouse */
cts = inl(0x84C);
outl(0x848, 0x0);
-
+ outl(0x840, 0x0);
switch(cts&0xF0000)
{
case 0x20000:
default:
dolog("Unhandled PCI cycle");
}
+
+ outl(0x848, 0x1000);
+ outl(0x840, 0x0100);
}
void __start (void)
{
- unsigned char smramc;
static int first = 1;
pcisave = inl(0xCF8);
if (inl(0x844) & 0x1000) /* devact_sts */
{
pci_dump();
- outl(0x848, 0x1000);
- outl(0x844, 0x1000);
+ outl(0x844, 0x1000); /* ack it */
}
}
if (inl(0x834) & 0x4000)
dolog("Long periodic timer");
if (inl(0x840) & 0x1000)
{
- dolog("Caught device monitor trap");
pci_dump();
outl(0x840, 0x1100);
outl(0x840, 0x0100);
}
if (inl(0x834) & ~(0x4160))
{
- unsigned char s[40];
+ char s[40];
strcpy(s, "Unknown: xxxxxxxx");
tohex(s + 9, inl(0x834) & ~(0x140));
dolog(s);