Modules/VESA - Allowed #if-ing out VM8086 use

[tpg/acess2.git] / KernelLand / Modules / Display / VESA / vbe.h

diff --git a/KernelLand/Modules/Display/VESA/vbe.h b/KernelLand/Modules/Display/VESA/vbe.h
new file mode 100644 (file)
index 0000000..ace7496
--- /dev/null
+++ b/KernelLand/Modules/Display/VESA/vbe.h
@@ -0,0 +1,79 @@
+/*
+ * Acess2 Kernel VBE Driver
+ * - By John Hodge (thePowersGang)
+ *
+ * vbe.h
+ * - Definitions for VBE structures
+ */
+#ifndef _VBE_H_
+#define _VBE_H_
+
+typedef struct sFarPtr
+{
+       Uint16  ofs;
+       Uint16  seg;
+}      tFarPtr;
+
+typedef struct sVesa_CallModeInfo
+{
+       /**
+        * 0 : Mode is supported
+        * 1 : Optional information avaliable (Xres onwards)
+        * 2 : BIOS Output Supported
+        * 3 : Colour Mode?
+        * 4 : Graphics mode?
+        * -- VBE v2.0+
+        * 5 : Mode is not VGA compatible
+        * 6 : Bank switched mode supported
+        * 7 : Linear framebuffer mode supported
+        * 8 : Double-scan mode avaliable
+        */
+       Uint16  attributes;
+       /**
+        * 0 : Window exists
+        * 1 : Window is readable
+        * 2 : Window is writable
+        */
+       Uint8   winA,winB;
+       Uint16  granularity;
+       Uint16  winsize;
+       Uint16  segmentA, segmentB;
+       tFarPtr realFctPtr;
+       Uint16  pitch;  // Bytes per scanline
+
+       Uint16  Xres, Yres;
+       Uint8   Wchar, Ychar, planes, bpp, banks;
+       Uint8   memory_model, bank_size, image_pages;
+       Uint8   reserved0;
+
+       // -- VBE v1.2+
+       Uint8   red_mask, red_position;
+       Uint8   green_mask, green_position;
+       Uint8   blue_mask, blue_position;
+       Uint8   rsv_mask, rsv_position;
+       Uint8   directcolor_attributes;
+
+       // -- VBE v2.0+
+       Uint32  physbase;
+       Uint32  offscreen_ptr;  // Start of offscreen memory
+       Uint16  offscreen_size_kb;      // Size of offscreen memory
+       
+       // -- VBE v3.0
+       Uint16  lfb_pitch;
+       Uint8   image_count_banked;
+       Uint8   image_count_lfb;
+} PACKED       tVesa_CallModeInfo;
+
+typedef struct sVesa_CallInfo
+{
+       char            signature[4];           // == "VESA"
+       Uint16  Version;        // == 0x0300 for Vesa 3.0
+       tFarPtr OEMString;      // isa vbeFarPtr
+       Uint8   Capabilities[4];        
+       tFarPtr VideoModes;     // isa vbeParPtr
+       Uint16  TotalMemory;    // as # of 64KB blocks
+} PACKED       tVesa_CallInfo;
+
+
+#endif
+