staging: Add framebuffer driver for XGI chipsets

This driver handles XG20, XG21, XG40, XG42 chipsets from XGI. They're
also known as Z7,Z9,Z11 chipsets. It's based on the SiS fb driver but
has been heavily modified by XGI to support their newer chipsets.


Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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