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-rw-r--r--drivers/staging/xgifb/XGI_accel.h511
1 files changed, 511 insertions, 0 deletions
diff --git a/drivers/staging/xgifb/XGI_accel.h b/drivers/staging/xgifb/XGI_accel.h
new file mode 100644
index 000000000000..04e126772bb8
--- /dev/null
+++ b/drivers/staging/xgifb/XGI_accel.h
@@ -0,0 +1,511 @@
+/*
+ * XGI 300/630/730/540/315/550/650/740 frame buffer driver
+ * for Linux kernels 2.4.x and 2.5.x
+ *
+ * 2D acceleration part
+ *
+ * Based on the X driver's XGI300_accel.h which is
+ * Copyright Xavier Ducoin <x.ducoin@lectra.com>
+ * Copyright 2002 by Thomas Winischhofer, Vienna, Austria
+ * and XGI310_accel.h which is
+ * Copyright 2002 by Thomas Winischhofer, Vienna, Austria
+ *
+ * Author: Thomas Winischhofer <thomas@winischhofer.net>:
+ * (see http://www.winischhofer.net/
+ * for more information and updates)
+ */
+
+#ifndef _XGIFB_ACCEL_H
+#define _XGIFB_ACCEL_H
+
+/* Guard accelerator accesses with spin_lock_irqsave? Works well without. */
+#undef XGIFB_USE_SPINLOCKS
+
+#ifdef XGIFB_USE_SPINLOCKS
+#include <linux/spinlock.h>
+#define CRITBEGIN spin_lock_irqsave(&xgi_video_info.lockaccel), critflags);
+#define CRITEND spin_unlock_irqrestore(&xgi_video_info.lockaccel), critflags);
+#define CRITFLAGS unsigned long critflags;
+#else
+#define CRITBEGIN
+#define CRITEND
+#define CRITFLAGS
+#endif
+
+/* Definitions for the XGI engine communication. */
+
+#define PATREGSIZE 384 /* Pattern register size. 384 bytes @ 0x8300 */
+#define BR(x) (0x8200 | (x) << 2)
+#define PBR(x) (0x8300 | (x) << 2)
+
+/* XGI300 engine commands */
+#define BITBLT 0x00000000 /* Blit */
+#define COLOREXP 0x00000001 /* Color expand */
+#define ENCOLOREXP 0x00000002 /* Enhanced color expand */
+#define MULTIPLE_SCANLINE 0x00000003 /* ? */
+#define LINE 0x00000004 /* Draw line */
+#define TRAPAZOID_FILL 0x00000005 /* Fill trapezoid */
+#define TRANSPARENT_BITBLT 0x00000006 /* Transparent Blit */
+
+/* Additional engine commands for 310/325 */
+#define ALPHA_BLEND 0x00000007 /* Alpha blend ? */
+#define A3D_FUNCTION 0x00000008 /* 3D command ? */
+#define CLEAR_Z_BUFFER 0x00000009 /* ? */
+#define GRADIENT_FILL 0x0000000A /* Gradient fill */
+#define STRETCH_BITBLT 0x0000000B /* Stretched Blit */
+
+/* source select */
+#define SRCVIDEO 0x00000000 /* source is video RAM */
+#define SRCSYSTEM 0x00000010 /* source is system memory */
+#define SRCCPUBLITBUF SRCSYSTEM /* source is CPU-driven BitBuffer (for color expand) */
+#define SRCAGP 0x00000020 /* source is AGP memory (?) */
+
+/* Pattern flags */
+#define PATFG 0x00000000 /* foreground color */
+#define PATPATREG 0x00000040 /* pattern in pattern buffer (0x8300) */
+#define PATMONO 0x00000080 /* mono pattern */
+
+/* blitting direction (300 series only) */
+#define X_INC 0x00010000
+#define X_DEC 0x00000000
+#define Y_INC 0x00020000
+#define Y_DEC 0x00000000
+
+/* Clipping flags */
+#define NOCLIP 0x00000000
+#define NOMERGECLIP 0x04000000
+#define CLIPENABLE 0x00040000
+#define CLIPWITHOUTMERGE 0x04040000
+
+/* Transparency */
+#define OPAQUE 0x00000000
+#define TRANSPARENT 0x00100000
+
+/* ? */
+#define DSTAGP 0x02000000
+#define DSTVIDEO 0x02000000
+
+/* Line */
+#define LINE_STYLE 0x00800000
+#define NO_RESET_COUNTER 0x00400000
+#define NO_LAST_PIXEL 0x00200000
+
+/* Subfunctions for Color/Enhanced Color Expansion (310/325 only) */
+#define COLOR_TO_MONO 0x00100000
+#define AA_TEXT 0x00200000
+
+/* Some general registers for 310/325 series */
+#define SRC_ADDR 0x8200
+#define SRC_PITCH 0x8204
+#define AGP_BASE 0x8206 /* color-depth dependent value */
+#define SRC_Y 0x8208
+#define SRC_X 0x820A
+#define DST_Y 0x820C
+#define DST_X 0x820E
+#define DST_ADDR 0x8210
+#define DST_PITCH 0x8214
+#define DST_HEIGHT 0x8216
+#define RECT_WIDTH 0x8218
+#define RECT_HEIGHT 0x821A
+#define PAT_FGCOLOR 0x821C
+#define PAT_BGCOLOR 0x8220
+#define SRC_FGCOLOR 0x8224
+#define SRC_BGCOLOR 0x8228
+#define MONO_MASK 0x822C
+#define LEFT_CLIP 0x8234
+#define TOP_CLIP 0x8236
+#define RIGHT_CLIP 0x8238
+#define BOTTOM_CLIP 0x823A
+#define COMMAND_READY 0x823C
+#define FIRE_TRIGGER 0x8240
+
+#define PATTERN_REG 0x8300 /* 384 bytes pattern buffer */
+
+/* Line registers */
+#define LINE_X0 SRC_Y
+#define LINE_X1 DST_Y
+#define LINE_Y0 SRC_X
+#define LINE_Y1 DST_X
+#define LINE_COUNT RECT_WIDTH
+#define LINE_STYLE_PERIOD RECT_HEIGHT
+#define LINE_STYLE_0 MONO_MASK
+#define LINE_STYLE_1 0x8230
+#define LINE_XN PATTERN_REG
+#define LINE_YN PATTERN_REG+2
+
+/* Transparent bitblit registers */
+#define TRANS_DST_KEY_HIGH PAT_FGCOLOR
+#define TRANS_DST_KEY_LOW PAT_BGCOLOR
+#define TRANS_SRC_KEY_HIGH SRC_FGCOLOR
+#define TRANS_SRC_KEY_LOW SRC_BGCOLOR
+
+/* Queue */
+#define Q_BASE_ADDR 0x85C0 /* Base address of software queue (?) */
+#define Q_WRITE_PTR 0x85C4 /* Current write pointer (?) */
+#define Q_READ_PTR 0x85C8 /* Current read pointer (?) */
+#define Q_STATUS 0x85CC /* queue status */
+
+
+#define MMIO_IN8(base, offset) \
+ *(volatile u8 *)(((u8*)(base)) + (offset))
+#define MMIO_IN16(base, offset) \
+ *(volatile u16 *)(void *)(((u8*)(base)) + (offset))
+#define MMIO_IN32(base, offset) \
+ *(volatile u32 *)(void *)(((u8*)(base)) + (offset))
+#define MMIO_OUT8(base, offset, val) \
+ *(volatile u8 *)(((u8*)(base)) + (offset)) = (val)
+#define MMIO_OUT16(base, offset, val) \
+ *(volatile u16 *)(void *)(((u8*)(base)) + (offset)) = (val)
+#define MMIO_OUT32(base, offset, val) \
+ *(volatile u32 *)(void *)(((u8*)(base)) + (offset)) = (val)
+
+
+
+/* ------------- XGI 300 series -------------- */
+
+/* Macros to do useful things with the XGI BitBLT engine */
+
+/* BR(16) (0x8420):
+
+ bit 31 2D engine: 1 is idle,
+ bit 30 3D engine: 1 is idle,
+ bit 29 Command queue: 1 is empty
+
+ bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
+
+ bits 15:0: Current command queue length
+
+*/
+
+/* TW: BR(16)+2 = 0x8242 */
+
+int xgiCmdQueLen;
+
+#define XGI300Idle \
+ { \
+ while( (MMIO_IN16(xgi_video_info.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
+ while( (MMIO_IN16(xgi_video_info.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
+ while( (MMIO_IN16(xgi_video_info.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
+ xgiCmdQueLen=MMIO_IN16(xgi_video_info.mmio_vbase, 0x8240); \
+ }
+/* TW: (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
+
+#define XGI300SetupSRCBase(base) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(0), base);\
+ xgiCmdQueLen --;
+
+#define XGI300SetupSRCPitch(pitch) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, BR(1), pitch);\
+ xgiCmdQueLen --;
+
+#define XGI300SetupSRCXY(x,y) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(2), (x)<<16 | (y) );\
+ xgiCmdQueLen --;
+
+#define XGI300SetupDSTBase(base) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(4), base);\
+ xgiCmdQueLen --;
+
+#define XGI300SetupDSTXY(x,y) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(3), (x)<<16 | (y) );\
+ xgiCmdQueLen --;
+
+#define XGI300SetupDSTRect(x,y) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(5), (y)<<16 | (x) );\
+ xgiCmdQueLen --;
+
+#define XGI300SetupDSTColorDepth(bpp) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, BR(1)+2, bpp);\
+ xgiCmdQueLen --;
+
+#define XGI300SetupRect(w,h) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(6), (h)<<16 | (w) );\
+ xgiCmdQueLen --;
+
+#define XGI300SetupPATFG(color) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(7), color);\
+ xgiCmdQueLen --;
+
+#define XGI300SetupPATBG(color) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(8), color);\
+ xgiCmdQueLen --;
+
+#define XGI300SetupSRCFG(color) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(9), color);\
+ xgiCmdQueLen --;
+
+#define XGI300SetupSRCBG(color) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(10), color);\
+ xgiCmdQueLen --;
+
+/* 0x8224 src colorkey high */
+/* 0x8228 src colorkey low */
+/* 0x821c dest colorkey high */
+/* 0x8220 dest colorkey low */
+#define XGI300SetupSRCTrans(color) \
+ if (xgiCmdQueLen <= 1) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, 0x8224, color);\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, 0x8228, color);\
+ xgiCmdQueLen -= 2;
+
+#define XGI300SetupDSTTrans(color) \
+ if (xgiCmdQueLen <= 1) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, 0x821C, color); \
+ MMIO_OUT32(xgi_video_info.mmio_vbase, 0x8220, color); \
+ xgiCmdQueLen -= 2;
+
+#define XGI300SetupMONOPAT(p0,p1) \
+ if (xgiCmdQueLen <= 1) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(11), p0);\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(12), p1);\
+ xgiCmdQueLen -= 2;
+
+#define XGI300SetupClipLT(left,top) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
+ xgiCmdQueLen--;
+
+#define XGI300SetupClipRB(right,bottom) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
+ xgiCmdQueLen--;
+
+/* General */
+#define XGI300SetupROP(rop) \
+ xgi_video_info.CommandReg = (rop) << 8;
+
+#define XGI300SetupCMDFlag(flags) \
+ xgi_video_info.CommandReg |= (flags);
+
+#define XGI300DoCMD \
+ if (xgiCmdQueLen <= 1) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(15), xgi_video_info.CommandReg); \
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(16), 0);\
+ xgiCmdQueLen -= 2;
+
+/* Line */
+#define XGI300SetupX0Y0(x,y) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(2), (y)<<16 | (x) );\
+ xgiCmdQueLen--;
+
+#define XGI300SetupX1Y1(x,y) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(3), (y)<<16 | (x) );\
+ xgiCmdQueLen--;
+
+#define XGI300SetupLineCount(c) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, BR(6), c);\
+ xgiCmdQueLen--;
+
+#define XGI300SetupStylePeriod(p) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, BR(6)+2, p);\
+ xgiCmdQueLen--;
+
+#define XGI300SetupStyleLow(ls) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(11), ls);\
+ xgiCmdQueLen--;
+
+#define XGI300SetupStyleHigh(ls) \
+ if (xgiCmdQueLen <= 0) XGI300Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, BR(12), ls);\
+ xgiCmdQueLen--;
+
+
+
+/* ----------- XGI 310/325 series --------------- */
+
+/* Q_STATUS:
+ bit 31 = 1: All engines idle and all queues empty
+ bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
+ bit 29 = 1: 2D engine is idle
+ bit 28 = 1: 3D engine is idle
+ bit 27 = 1: HW command queue empty
+ bit 26 = 1: 2D queue empty
+ bit 25 = 1: 3D queue empty
+ bit 24 = 1: SW command queue empty
+ bits 23:16: 2D counter 3
+ bits 15:8: 2D counter 2
+ bits 7:0: 2D counter 1
+
+ Where is the command queue length (current amount of commands the queue
+ can accept) on the 310/325 series? (The current implementation is taken
+ from 300 series and certainly wrong...)
+*/
+
+/* TW: FIXME: xgiCmdQueLen is... where....? */
+#define XGI310Idle \
+ { \
+ while( (MMIO_IN16(xgi_video_info.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
+ while( (MMIO_IN16(xgi_video_info.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
+ xgiCmdQueLen=MMIO_IN16(xgi_video_info.mmio_vbase, Q_STATUS); \
+ }
+
+#define XGI310SetupSRCBase(base) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_ADDR, base);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupSRCPitch(pitch) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, SRC_PITCH, pitch);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupSRCXY(x,y) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_Y, (x)<<16 | (y) );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupDSTBase(base) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, DST_ADDR, base);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupDSTXY(x,y) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, DST_Y, (x)<<16 | (y) );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupDSTRect(x,y) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupDSTColorDepth(bpp) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, AGP_BASE, bpp);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupRect(w,h) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupPATFG(color) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, PAT_FGCOLOR, color);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupPATBG(color) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, PAT_BGCOLOR, color);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupSRCFG(color) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_FGCOLOR, color);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupSRCBG(color) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_BGCOLOR, color);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupSRCTrans(color) \
+ if (xgiCmdQueLen <= 1) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_SRC_KEY_LOW, color);\
+ xgiCmdQueLen -= 2;
+
+#define XGI310SetupDSTTrans(color) \
+ if (xgiCmdQueLen <= 1) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_DST_KEY_HIGH, color); \
+ MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_DST_KEY_LOW, color); \
+ xgiCmdQueLen -= 2;
+
+#define XGI310SetupMONOPAT(p0,p1) \
+ if (xgiCmdQueLen <= 1) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, MONO_MASK, p0);\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, MONO_MASK+4, p1);\
+ xgiCmdQueLen -= 2;
+
+#define XGI310SetupClipLT(left,top) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupClipRB(right,bottom) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupROP(rop) \
+ xgi_video_info.CommandReg = (rop) << 8;
+
+#define XGI310SetupCMDFlag(flags) \
+ xgi_video_info.CommandReg |= (flags);
+
+#define XGI310DoCMD \
+ if (xgiCmdQueLen <= 1) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, COMMAND_READY, xgi_video_info.CommandReg); \
+ MMIO_OUT32(xgi_video_info.mmio_vbase, FIRE_TRIGGER, 0); \
+ xgiCmdQueLen -= 2;
+
+#define XGI310SetupX0Y0(x,y) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_X0, (y)<<16 | (x) );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupX1Y1(x,y) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_X1, (y)<<16 | (x) );\
+ xgiCmdQueLen--;
+
+#define XGI310SetupLineCount(c) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, LINE_COUNT, c);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupStylePeriod(p) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT16(xgi_video_info.mmio_vbase, LINE_STYLE_PERIOD, p);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupStyleLow(ls) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_STYLE_0, ls);\
+ xgiCmdQueLen--;
+
+#define XGI310SetupStyleHigh(ls) \
+ if (xgiCmdQueLen <= 0) XGI310Idle;\
+ MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_STYLE_1, ls);\
+ xgiCmdQueLen--;
+
+int XGIfb_initaccel(void);
+void XGIfb_syncaccel(void);
+
+extern struct video_info xgi_video_info;
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33)
+void fbcon_XGI_bmove(struct display *p, int srcy, int srcx, int dsty,
+ int dstx, int height, int width);
+void fbcon_XGI_revc(struct display *p, int srcy, int srcx);
+void fbcon_XGI_clear8(struct vc_data *conp, struct display *p, int srcy,
+ int srcx, int height, int width);
+void fbcon_XGI_clear16(struct vc_data *conp, struct display *p, int srcy,
+ int srcx, int height, int width);
+void fbcon_XGI_clear32(struct vc_data *conp, struct display *p, int srcy,
+ int srcx, int height, int width);
+#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)
+extern int XGIfb_accel;
+void fbcon_XGI_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
+void fbcon_XGI_copyarea(struct fb_info *info, const struct fb_copyarea *area);
+#endif
+
+#endif