BarinkOS/kernel/drivers/vga/VBE.h
Nigel dea8ab7d71 Improved build system
Added new entries to .gitignore
Moved away from source directory as central spot for all source code
2023-02-20 00:29:06 +01:00

42 lines
1.2 KiB
C

#define VBE_DISPI_IOPORT_INDEX 0x01CE
#define VBE_DISPI_IOPORT_DATA 0x01CF
/* VBE index values*/
#define VBE_DISPI_INDEX_ID 0x0
#define VBE_DISPI_INDEX_XRES 0x1
#define VBE_DISPI_INDEX_YRES 0x2
#define VBE_DISPI_INDEX_BPP 0x3
#define VBE_DISPI_INDEX_ENABLE 0x4
#define VBE_DISPI_INDEX_BANK 0x5
#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
#define VBE_DISPI_INDEX_X_OFFSET 0x8
#define VBE_DISPI_INDEX_Y_OFFSET 0x9
/* BGA Version */
#define VBE_DISPI_ID5 0xB0C5
#define VBE_DISPI_ID4 0xB0C3
#define VBE_DISPI_ID3 0xB0C2
#define VBE_DISPI_ID2 0xB0C1
#define VBE_DISPI_ID1 0xB0C0
/* BGA BIT DEPTH */
#define VBE_DISPI_BPP_4 0x04
#define VBE_DISPI_BPP_8 0x08
#define VBE_DISPI_BPP_15 0x0F
#define VBE_DISPI_BPP_16 0x10
#define VBE_DISPI_BPP_24 0x18
#define VBE_DISPI_BPP_32 0x20
/*unsigned short BGAReadRegister(unsigned short IndexValue){
// outpw(VBE_DISPI_IOPORT_INDEX, IndexValue);
// return inpw (VBE_DISPI_IOPORT_DATA);
}
int BGAIsAvailable (){
return (BGAReadRegister(VBE_DISPI_INDEX_ID) == VBE_DISPI_ID5);
}*/