int test_controller() {
if (lm_init() == NULL) {
printf("\tvg_get_controller_info(): lm_init() failed \n");
return 1;
}
return vbe_get_controller_info();
}
int test_controller()
{
vbe_controller_info_t info;
void* base=NULL;
if(vbe_get_controller_info(&info, &base)){
printf("test_controller(): vbe_get_controller_info() failed\n");
return 1;
}
printf("VBE Signature : %s\n", info.VbeSignature);
printf("VBE Version : ");print_vbe_version(info.VbeVersion); printf("\n");
printf("OEM String : %s\n", GET_ADDR(info.OemStringPtr, base));
printf("Total VRAM memory : %u (blocks of 64 kb)\n", info.TotalMemory);
printf("OEM Software Revision: "); print_vbe_version(info.OemSoftwareRev); printf("\n");
printf("OEM Vendor Name : %s\n", GET_ADDR(info.OemVendorNamePtr, base),GET_ADDR(info.OemVendorNamePtr, base));
printf("OEM Product Name : %s\n", GET_ADDR(info.OemProductNamePtr, base));
printf("OEM Product Revision : %s\n", GET_ADDR(info.OemProductRevPtr, base));
unsigned long capabilities = (unsigned long) (*(info.Capabilities));
printf("Capabilities: 0x%x\n",capabilities);
if((capabilities & BIT(0)) == 0)
printf("\tDAC is fixed width, with 6 bits per primary color\n");
else printf("\tDAC width is switchable to 8 bits per primary color\n");
if((capabilities & BIT(1)) == 0)
printf("\tController is VGA compatible\n");
else printf("\tController is not VGA compatible\n");
if((capabilities & BIT(2)) == 0)
printf("\tNormal RAMDAC operation\n");
else printf("\tRAMDAC operation: Blank bit in Function 09h\n");
short* modes = GET_ADDR(info.VideoModePtr, base);
size_t nummodes=0;
printf("Supported modes:\n");
while(*modes != -1)
{
nummodes++;
printf("Mode number %3d : 0x%X\n", nummodes,*modes);
modes++;
}
if(nummodes == 0)
printf("No modes supported\n");
return 0;
}
