X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FModules%2FDisplay%2FVGA%2Fvgaregs.c;fp=KernelLand%2FModules%2FDisplay%2FVGA%2Fvgaregs.c;h=fa1bc8401192236369617e18c7467b67fe3a8c88;hb=845b6f9d90bb87b5e760e4d49aa93b0e003ab750;hp=0000000000000000000000000000000000000000;hpb=67a7fe2bb79eceaf10c572a99bd8345c4e81cf5b;p=tpg%2Facess2.git

diff --git a/KernelLand/Modules/Display/VGA/vgaregs.c b/KernelLand/Modules/Display/VGA/vgaregs.c
new file mode 100644
index 00000000..fa1bc840
--- /dev/null
+++ b/KernelLand/Modules/Display/VGA/vgaregs.c
@@ -0,0 +1,81 @@
+/*
+ * Acess2 VGA Driver
+ * - 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)
+{
+	Index &= 0x1F;
+	SHORTLOCK(&glVGA_Attr);
+	inb(0x3DA);
+	outb(VGA_ATTR_WRITE, Index);
+	outb(VGA_ATTR_WRITE, Data);
+	SHORTREL(&glVGA_Attr);
+}
+
+Uint8 VGA_ReadAttr(Uint8 Index)
+{
+	Uint8	ret;
+	SHORTLOCK(&glVGA_Attr);
+	inb(0x3DA);
+	outb(VGA_ATTR_WRITE, Index);
+	ret = inb(VGA_ATTR_READ);
+	SHORTREL(&glVGA_Attr);
+	return ret;
+}
+
+void VGA_WriteSeq(Uint8 Index, Uint8 Data)
+{
+	outb(VGA_SEQ_IDX, Index);
+	outb(VGA_SEQ_DATA, Data);
+}
+Uint8 VGA_ReadSeq(Uint8 Index)
+{
+	outb(VGA_SEQ_IDX, Index);
+	return inb(VGA_SEQ_DATA);
+}
+void VGA_WriteGraph(Uint8 Index, Uint8 Data)
+{
+	outb(VGA_GRAPH_IDX, Index);
+	outb(VGA_GRAPH_DATA, Data);
+}
+Uint8 VGA_ReadGraph(Uint8 Index)
+{
+	outb(VGA_GRAPH_IDX, Index);
+	return inb(VGA_GRAPH_DATA);
+}
+
+void VGA_WriteMiscOut(Uint8 Data)
+{
+	outb(VGA_MISC_IS0, Data);
+}
+Uint8 VGA_ReadMiscOut(void)
+{
+	return inb(VGA_MISCOUT);
+}