-/*
- * 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
-
-/* 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 */
-
-static 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);
-int fbcon_XGI_sync(struct fb_info *info);
-
-extern struct video_info xgi_video_info;
-
-#endif