Modules/VGA - Symbolic names for registers

diff --git a/KernelLand/Modules/Display/VGA/vgaregs.c b/KernelLand/Modules/Display/VGA/vgaregs.c
index c2be21f..fa1bc84 100644 (file)
--- a/KernelLand/Modules/Display/VGA/vgaregs.c
+++ b/KernelLand/Modules/Display/VGA/vgaregs.c
@@ -3,6 +3,30 @@
  * - By John Hodge (thePowersGang)
  */
 
+#define VGA_CRTC_IDX   0x3B4
+#define VGA_CRTC_DATA  0x3B5
+#define VGA_FEAT_IS1   0x3BA   // Features / Input Status 1 (B/W Chips)
+#define VGA_ATTR_WRITE 0x3C0
+#define VGA_ATTR_READ  0x3C1
+#define VGA_MISC_IS0   0x3C2   // Misc Output / Input Status 0
+#define VGA_MBSLEEP    0x3C3   // "Motherboard Sleep"
+#define VGA_SEQ_IDX    0x3C4
+#define VGA_SEQ_DATA   0x3C5
+#define VGA_DACMASK    0x3C6
+#define VGA_PADR_DACST 0x3C7
+#define VGA_PIXWRMODE  0x3C8
+#define VGA_PIXDATA    0x3C9
+#define VGA_FEATRD     0x3CA
+//                     0x3CB
+#define VGA_MISCOUT    0x3CC
+//                     0x3CD
+#define VGA_GRAPH_IDX  0x3CE
+#define VGA_GRAPH_DATA 0x3CF
+//                     0x3D0 -- 0x3D3
+#define VGA_CRTC_IDX   0x3D4
+#define VGA_CRTC_DATA  0x3D5
+//                     0x3D6 -- 0x3D9
+#define VGA_FEAT_IS1_C 0x3DA   // Features / Input Status 1 (Colour Chips)
 
 // === CODE ===
 void VGA_WriteAttr(Uint8 Index, Uint8 Data)
@@ -10,8 +34,8 @@ void VGA_WriteAttr(Uint8 Index, Uint8 Data)
        Index &= 0x1F;
        SHORTLOCK(&glVGA_Attr);
        inb(0x3DA);
-       outb(0x3C0, Index);
-       outb(0x3C0, Data);
+       outb(VGA_ATTR_WRITE, Index);
+       outb(VGA_ATTR_WRITE, Data);
        SHORTREL(&glVGA_Attr);
 }
 
@@ -20,38 +44,38 @@ Uint8 VGA_ReadAttr(Uint8 Index)
        Uint8   ret;
        SHORTLOCK(&glVGA_Attr);
        inb(0x3DA);
-       outb(0x3C0, Index);
-       ret = inb(0x3C1);
+       outb(VGA_ATTR_WRITE, Index);
+       ret = inb(VGA_ATTR_READ);
        SHORTREL(&glVGA_Attr);
        return ret;
 }
 
 void VGA_WriteSeq(Uint8 Index, Uint8 Data)
 {
-       outb(0x3C4, Index);
-       outb(0x3C5, Data);
+       outb(VGA_SEQ_IDX, Index);
+       outb(VGA_SEQ_DATA, Data);
 }
 Uint8 VGA_ReadSeq(Uint8 Index)
 {
-       outb(0x3C4, Index);
-       return inb(0x3C5);
+       outb(VGA_SEQ_IDX, Index);
+       return inb(VGA_SEQ_DATA);
 }
 void VGA_WriteGraph(Uint8 Index, Uint8 Data)
 {
-       outb(0x3CE, Index);
-       outb(0x3CF, Data);
+       outb(VGA_GRAPH_IDX, Index);
+       outb(VGA_GRAPH_DATA, Data);
 }
 Uint8 VGA_ReadGraph(Uint8 Index)
 {
-       outb(0x3CE, Index);
-       return inb(0x3CF);
+       outb(VGA_GRAPH_IDX, Index);
+       return inb(VGA_GRAPH_DATA);
 }
 
 void VGA_WriteMiscOut(Uint8 Data)
 {
-       outb(0x3C2, Data);
+       outb(VGA_MISC_IS0, Data);
 }
 Uint8 VGA_ReadMiscOut(void)
 {
-       return inb(0x3CC);
+       return inb(VGA_MISCOUT);
 }