1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * SiS 300/540/630[S]/730[S], 4 * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX], 5 * XGI V3XT/V5/V8, Z7 6 * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3 7 * 8 * 2D acceleration part 9 * 10 * Based on the X driver's sis300_accel.h which is 11 * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria 12 * and sis310_accel.h which is 13 * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria 14 * 15 * Author: Thomas Winischhofer <thomas@winischhofer.net>: 16 * (see http://www.winischhofer.net/ 17 * for more information and updates) 18 */ 19 20#ifndef _SISFB_ACCEL_H 21#define _SISFB_ACCEL_H 22 23/* Guard accelerator accesses with spin_lock_irqsave? Works well without. */ 24#undef SISFB_USE_SPINLOCKS 25 26#ifdef SISFB_USE_SPINLOCKS 27#include <linux/spinlock.h> 28#define CRITBEGIN spin_lock_irqsave(&ivideo->lockaccel, critflags); 29#define CRITEND spin_unlock_irqrestore(&ivideo->lockaccel, critflags); 30#define CRITFLAGS unsigned long critflags; 31#else 32#define CRITBEGIN 33#define CRITEND 34#define CRITFLAGS 35#endif 36 37/* Definitions for the SIS engine communication. */ 38 39#define PATREGSIZE 384 /* Pattern register size. 384 bytes @ 0x8300 */ 40#define BR(x) (0x8200 | (x) << 2) 41#define PBR(x) (0x8300 | (x) << 2) 42 43/* SiS300 engine commands */ 44#define BITBLT 0x00000000 /* Blit */ 45#define COLOREXP 0x00000001 /* Color expand */ 46#define ENCOLOREXP 0x00000002 /* Enhanced color expand */ 47#define MULTIPLE_SCANLINE 0x00000003 /* ? */ 48#define LINE 0x00000004 /* Draw line */ 49#define TRAPAZOID_FILL 0x00000005 /* Fill trapezoid */ 50#define TRANSPARENT_BITBLT 0x00000006 /* Transparent Blit */ 51 52/* Additional engine commands for 315 */ 53#define ALPHA_BLEND 0x00000007 /* Alpha blend ? */ 54#define A3D_FUNCTION 0x00000008 /* 3D command ? */ 55#define CLEAR_Z_BUFFER 0x00000009 /* ? */ 56#define GRADIENT_FILL 0x0000000A /* Gradient fill */ 57 58/* source select */ 59#define SRCVIDEO 0x00000000 /* source is video RAM */ 60#define SRCSYSTEM 0x00000010 /* source is system memory */ 61#define SRCCPUBLITBUF SRCSYSTEM /* source is CPU-driven BitBuffer (for color expand) */ 62#define SRCAGP 0x00000020 /* source is AGP memory (?) */ 63 64/* Pattern flags */ 65#define PATFG 0x00000000 /* foreground color */ 66#define PATPATREG 0x00000040 /* pattern in pattern buffer (0x8300) */ 67#define PATMONO 0x00000080 /* mono pattern */ 68 69/* blitting direction (300 series only) */ 70#define X_INC 0x00010000 71#define X_DEC 0x00000000 72#define Y_INC 0x00020000 73#define Y_DEC 0x00000000 74 75/* Clipping flags */ 76#define NOCLIP 0x00000000 77#define NOMERGECLIP 0x04000000 78#define CLIPENABLE 0x00040000 79#define CLIPWITHOUTMERGE 0x04040000 80 81/* Transparency */ 82#define OPAQUE 0x00000000 83#define TRANSPARENT 0x00100000 84 85/* ? */ 86#define DSTAGP 0x02000000 87#define DSTVIDEO 0x02000000 88 89/* Subfunctions for Color/Enhanced Color Expansion (315 only) */ 90#define COLOR_TO_MONO 0x00100000 91#define AA_TEXT 0x00200000 92 93/* Some general registers for 315 series */ 94#define SRC_ADDR 0x8200 95#define SRC_PITCH 0x8204 96#define AGP_BASE 0x8206 /* color-depth dependent value */ 97#define SRC_Y 0x8208 98#define SRC_X 0x820A 99#define DST_Y 0x820C 100#define DST_X 0x820E 101#define DST_ADDR 0x8210 102#define DST_PITCH 0x8214 103#define DST_HEIGHT 0x8216 104#define RECT_WIDTH 0x8218 105#define RECT_HEIGHT 0x821A 106#define PAT_FGCOLOR 0x821C 107#define PAT_BGCOLOR 0x8220 108#define SRC_FGCOLOR 0x8224 109#define SRC_BGCOLOR 0x8228 110#define MONO_MASK 0x822C 111#define LEFT_CLIP 0x8234 112#define TOP_CLIP 0x8236 113#define RIGHT_CLIP 0x8238 114#define BOTTOM_CLIP 0x823A 115#define COMMAND_READY 0x823C 116#define FIRE_TRIGGER 0x8240 117 118#define PATTERN_REG 0x8300 /* 384 bytes pattern buffer */ 119 120/* Transparent bitblit registers */ 121#define TRANS_DST_KEY_HIGH PAT_FGCOLOR 122#define TRANS_DST_KEY_LOW PAT_BGCOLOR 123#define TRANS_SRC_KEY_HIGH SRC_FGCOLOR 124#define TRANS_SRC_KEY_LOW SRC_BGCOLOR 125 126/* Store queue length in par */ 127#define CmdQueLen ivideo->cmdqueuelength 128 129/* ------------- SiS 300 series -------------- */ 130 131/* BR(16) (0x8240): 132 133 bit 31 2D engine: 1 is idle, 134 bit 30 3D engine: 1 is idle, 135 bit 29 Command queue: 1 is empty 136 bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0] 137 bits 15:0: Current command queue length 138 139*/ 140 141#define SiS300Idle \ 142 { \ 143 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \ 144 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \ 145 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \ 146 CmdQueLen = MMIO_IN16(ivideo->mmio_vbase, 0x8240); \ 147 } 148/* (do three times, because 2D engine seems quite unsure about whether or not it's idle) */ 149 150#define SiS300SetupSRCBase(base) \ 151 if(CmdQueLen <= 0) SiS300Idle;\ 152 MMIO_OUT32(ivideo->mmio_vbase, BR(0), base);\ 153 CmdQueLen--; 154 155#define SiS300SetupSRCPitch(pitch) \ 156 if(CmdQueLen <= 0) SiS300Idle;\ 157 MMIO_OUT16(ivideo->mmio_vbase, BR(1), pitch);\ 158 CmdQueLen--; 159 160#define SiS300SetupSRCXY(x,y) \ 161 if(CmdQueLen <= 0) SiS300Idle;\ 162 MMIO_OUT32(ivideo->mmio_vbase, BR(2), (x)<<16 | (y) );\ 163 CmdQueLen--; 164 165#define SiS300SetupDSTBase(base) \ 166 if(CmdQueLen <= 0) SiS300Idle;\ 167 MMIO_OUT32(ivideo->mmio_vbase, BR(4), base);\ 168 CmdQueLen--; 169 170#define SiS300SetupDSTXY(x,y) \ 171 if(CmdQueLen <= 0) SiS300Idle;\ 172 MMIO_OUT32(ivideo->mmio_vbase, BR(3), (x)<<16 | (y) );\ 173 CmdQueLen--; 174 175#define SiS300SetupDSTRect(x,y) \ 176 if(CmdQueLen <= 0) SiS300Idle;\ 177 MMIO_OUT32(ivideo->mmio_vbase, BR(5), (y)<<16 | (x) );\ 178 CmdQueLen--; 179 180#define SiS300SetupDSTColorDepth(bpp) \ 181 if(CmdQueLen <= 0) SiS300Idle;\ 182 MMIO_OUT16(ivideo->mmio_vbase, BR(1)+2, bpp);\ 183 CmdQueLen--; 184 185#define SiS300SetupRect(w,h) \ 186 if(CmdQueLen <= 0) SiS300Idle;\ 187 MMIO_OUT32(ivideo->mmio_vbase, BR(6), (h)<<16 | (w) );\ 188 CmdQueLen--; 189 190#define SiS300SetupPATFG(color) \ 191 if(CmdQueLen <= 0) SiS300Idle;\ 192 MMIO_OUT32(ivideo->mmio_vbase, BR(7), color);\ 193 CmdQueLen--; 194 195#define SiS300SetupPATBG(color) \ 196 if(CmdQueLen <= 0) SiS300Idle;\ 197 MMIO_OUT32(ivideo->mmio_vbase, BR(8), color);\ 198 CmdQueLen--; 199 200#define SiS300SetupSRCFG(color) \ 201 if(CmdQueLen <= 0) SiS300Idle;\ 202 MMIO_OUT32(ivideo->mmio_vbase, BR(9), color);\ 203 CmdQueLen--; 204 205#define SiS300SetupSRCBG(color) \ 206 if(CmdQueLen <= 0) SiS300Idle;\ 207 MMIO_OUT32(ivideo->mmio_vbase, BR(10), color);\ 208 CmdQueLen--; 209 210/* 0x8224 src colorkey high */ 211/* 0x8228 src colorkey low */ 212/* 0x821c dest colorkey high */ 213/* 0x8220 dest colorkey low */ 214#define SiS300SetupSRCTrans(color) \ 215 if(CmdQueLen <= 1) SiS300Idle;\ 216 MMIO_OUT32(ivideo->mmio_vbase, 0x8224, color);\ 217 MMIO_OUT32(ivideo->mmio_vbase, 0x8228, color);\ 218 CmdQueLen -= 2; 219 220#define SiS300SetupDSTTrans(color) \ 221 if(CmdQueLen <= 1) SiS300Idle;\ 222 MMIO_OUT32(ivideo->mmio_vbase, 0x821C, color); \ 223 MMIO_OUT32(ivideo->mmio_vbase, 0x8220, color); \ 224 CmdQueLen -= 2; 225 226#define SiS300SetupMONOPAT(p0,p1) \ 227 if(CmdQueLen <= 1) SiS300Idle;\ 228 MMIO_OUT32(ivideo->mmio_vbase, BR(11), p0);\ 229 MMIO_OUT32(ivideo->mmio_vbase, BR(12), p1);\ 230 CmdQueLen -= 2; 231 232#define SiS300SetupClipLT(left,top) \ 233 if(CmdQueLen <= 0) SiS300Idle;\ 234 MMIO_OUT32(ivideo->mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\ 235 CmdQueLen--; 236 237#define SiS300SetupClipRB(right,bottom) \ 238 if(CmdQueLen <= 0) SiS300Idle;\ 239 MMIO_OUT32(ivideo->mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\ 240 CmdQueLen--; 241 242/* General */ 243#define SiS300SetupROP(rop) \ 244 ivideo->CommandReg = (rop) << 8; 245 246#define SiS300SetupCMDFlag(flags) \ 247 ivideo->CommandReg |= (flags); 248 249#define SiS300DoCMD \ 250 if(CmdQueLen <= 1) SiS300Idle;\ 251 MMIO_OUT32(ivideo->mmio_vbase, BR(15), ivideo->CommandReg); \ 252 MMIO_OUT32(ivideo->mmio_vbase, BR(16), 0);\ 253 CmdQueLen -= 2; 254 255/* -------------- SiS 315/330 series --------------- */ 256 257/* Q_STATUS: 258 bit 31 = 1: All engines idle and all queues empty 259 bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty 260 bit 29 = 1: 2D engine is idle 261 bit 28 = 1: 3D engine is idle 262 bit 27 = 1: HW command queue empty 263 bit 26 = 1: 2D queue empty 264 bit 25 = 1: 3D queue empty 265 bit 24 = 1: SW command queue empty 266 bits 23:16: 2D counter 3 267 bits 15:8: 2D counter 2 268 bits 7:0: 2D counter 1 269*/ 270 271#define SiS310Idle \ 272 { \ 273 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ 274 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ 275 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ 276 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ 277 CmdQueLen = 0; \ 278 } 279 280#define SiS310SetupSRCBase(base) \ 281 if(CmdQueLen <= 0) SiS310Idle;\ 282 MMIO_OUT32(ivideo->mmio_vbase, SRC_ADDR, base);\ 283 CmdQueLen--; 284 285#define SiS310SetupSRCPitch(pitch) \ 286 if(CmdQueLen <= 0) SiS310Idle;\ 287 MMIO_OUT16(ivideo->mmio_vbase, SRC_PITCH, pitch);\ 288 CmdQueLen--; 289 290#define SiS310SetupSRCXY(x,y) \ 291 if(CmdQueLen <= 0) SiS310Idle;\ 292 MMIO_OUT32(ivideo->mmio_vbase, SRC_Y, (x)<<16 | (y) );\ 293 CmdQueLen--; 294 295#define SiS310SetupDSTBase(base) \ 296 if(CmdQueLen <= 0) SiS310Idle;\ 297 MMIO_OUT32(ivideo->mmio_vbase, DST_ADDR, base);\ 298 CmdQueLen--; 299 300#define SiS310SetupDSTXY(x,y) \ 301 if(CmdQueLen <= 0) SiS310Idle;\ 302 MMIO_OUT32(ivideo->mmio_vbase, DST_Y, (x)<<16 | (y) );\ 303 CmdQueLen--; 304 305#define SiS310SetupDSTRect(x,y) \ 306 if(CmdQueLen <= 0) SiS310Idle;\ 307 MMIO_OUT32(ivideo->mmio_vbase, DST_PITCH, (y)<<16 | (x) );\ 308 CmdQueLen--; 309 310#define SiS310SetupDSTColorDepth(bpp) \ 311 if(CmdQueLen <= 0) SiS310Idle;\ 312 MMIO_OUT16(ivideo->mmio_vbase, AGP_BASE, bpp);\ 313 CmdQueLen--; 314 315#define SiS310SetupRect(w,h) \ 316 if(CmdQueLen <= 0) SiS310Idle;\ 317 MMIO_OUT32(ivideo->mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\ 318 CmdQueLen--; 319 320#define SiS310SetupPATFG(color) \ 321 if(CmdQueLen <= 0) SiS310Idle;\ 322 MMIO_OUT32(ivideo->mmio_vbase, PAT_FGCOLOR, color);\ 323 CmdQueLen--; 324 325#define SiS310SetupPATBG(color) \ 326 if(CmdQueLen <= 0) SiS310Idle;\ 327 MMIO_OUT32(ivideo->mmio_vbase, PAT_BGCOLOR, color);\ 328 CmdQueLen--; 329 330#define SiS310SetupSRCFG(color) \ 331 if(CmdQueLen <= 0) SiS310Idle;\ 332 MMIO_OUT32(ivideo->mmio_vbase, SRC_FGCOLOR, color);\ 333 CmdQueLen--; 334 335#define SiS310SetupSRCBG(color) \ 336 if(CmdQueLen <= 0) SiS310Idle;\ 337 MMIO_OUT32(ivideo->mmio_vbase, SRC_BGCOLOR, color);\ 338 CmdQueLen--; 339 340#define SiS310SetupSRCTrans(color) \ 341 if(CmdQueLen <= 1) SiS310Idle;\ 342 MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_HIGH, color);\ 343 MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_LOW, color);\ 344 CmdQueLen -= 2; 345 346#define SiS310SetupDSTTrans(color) \ 347 if(CmdQueLen <= 1) SiS310Idle;\ 348 MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_HIGH, color); \ 349 MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_LOW, color); \ 350 CmdQueLen -= 2; 351 352#define SiS310SetupMONOPAT(p0,p1) \ 353 if(CmdQueLen <= 1) SiS310Idle;\ 354 MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK, p0);\ 355 MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK+4, p1);\ 356 CmdQueLen -= 2; 357 358#define SiS310SetupClipLT(left,top) \ 359 if(CmdQueLen <= 0) SiS310Idle;\ 360 MMIO_OUT32(ivideo->mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\ 361 CmdQueLen--; 362 363#define SiS310SetupClipRB(right,bottom) \ 364 if(CmdQueLen <= 0) SiS310Idle;\ 365 MMIO_OUT32(ivideo->mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\ 366 CmdQueLen--; 367 368#define SiS310SetupROP(rop) \ 369 ivideo->CommandReg = (rop) << 8; 370 371#define SiS310SetupCMDFlag(flags) \ 372 ivideo->CommandReg |= (flags); 373 374#define SiS310DoCMD \ 375 if(CmdQueLen <= 1) SiS310Idle;\ 376 MMIO_OUT32(ivideo->mmio_vbase, COMMAND_READY, ivideo->CommandReg); \ 377 MMIO_OUT32(ivideo->mmio_vbase, FIRE_TRIGGER, 0); \ 378 CmdQueLen -= 2; 379 380int sisfb_initaccel(struct sis_video_info *ivideo); 381void sisfb_syncaccel(struct sis_video_info *ivideo); 382 383int fbcon_sis_sync(struct fb_info *info); 384void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect); 385void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area); 386 387#endif 388