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; 379 380 int sisfb_initaccel(struct sis_video_info *ivideo); 381 void sisfb_syncaccel(struct sis_video_info *ivideo); 382 383 int fbcon_sis_sync(struct fb_info *info); 384 void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect); 385 void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area); 386 387 #endif 388