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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 | // SPDX-License-Identifier: GPL-2.0-or-later /* * SiS 300/540/630[S]/730[S], * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX], * XGI V3XT/V5/V8, Z7 * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3 * * 2D acceleration part * * Based on the XFree86/X.org driver which is * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria * * Author: Thomas Winischhofer <thomas@winischhofer.net> * (see http://www.winischhofer.net/ * for more information and updates) */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/fb.h> #include <linux/ioport.h> #include <linux/types.h> #include <asm/io.h> #include "sis.h" #include "sis_accel.h" static const u8 sisALUConv[] = { 0x00, /* dest = 0; 0, GXclear, 0 */ 0x88, /* dest &= src; DSa, GXand, 0x1 */ 0x44, /* dest = src & ~dest; SDna, GXandReverse, 0x2 */ 0xCC, /* dest = src; S, GXcopy, 0x3 */ 0x22, /* dest &= ~src; DSna, GXandInverted, 0x4 */ 0xAA, /* dest = dest; D, GXnoop, 0x5 */ 0x66, /* dest = ^src; DSx, GXxor, 0x6 */ 0xEE, /* dest |= src; DSo, GXor, 0x7 */ 0x11, /* dest = ~src & ~dest; DSon, GXnor, 0x8 */ 0x99, /* dest ^= ~src ; DSxn, GXequiv, 0x9 */ 0x55, /* dest = ~dest; Dn, GXInvert, 0xA */ 0xDD, /* dest = src|~dest ; SDno, GXorReverse, 0xB */ 0x33, /* dest = ~src; Sn, GXcopyInverted, 0xC */ 0xBB, /* dest |= ~src; DSno, GXorInverted, 0xD */ 0x77, /* dest = ~src|~dest; DSan, GXnand, 0xE */ 0xFF, /* dest = 0xFF; 1, GXset, 0xF */ }; /* same ROP but with Pattern as Source */ static const u8 sisPatALUConv[] = { 0x00, /* dest = 0; 0, GXclear, 0 */ 0xA0, /* dest &= src; DPa, GXand, 0x1 */ 0x50, /* dest = src & ~dest; PDna, GXandReverse, 0x2 */ 0xF0, /* dest = src; P, GXcopy, 0x3 */ 0x0A, /* dest &= ~src; DPna, GXandInverted, 0x4 */ 0xAA, /* dest = dest; D, GXnoop, 0x5 */ 0x5A, /* dest = ^src; DPx, GXxor, 0x6 */ 0xFA, /* dest |= src; DPo, GXor, 0x7 */ 0x05, /* dest = ~src & ~dest; DPon, GXnor, 0x8 */ 0xA5, /* dest ^= ~src ; DPxn, GXequiv, 0x9 */ 0x55, /* dest = ~dest; Dn, GXInvert, 0xA */ 0xF5, /* dest = src|~dest ; PDno, GXorReverse, 0xB */ 0x0F, /* dest = ~src; Pn, GXcopyInverted, 0xC */ 0xAF, /* dest |= ~src; DPno, GXorInverted, 0xD */ 0x5F, /* dest = ~src|~dest; DPan, GXnand, 0xE */ 0xFF, /* dest = 0xFF; 1, GXset, 0xF */ }; static const int myrops[] = { 3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 }; /* 300 series ----------------------------------------------------- */ #ifdef CONFIG_FB_SIS_300 static void SiS300Sync(struct sis_video_info *ivideo) { SiS300Idle } static void SiS300SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int xdir, int ydir, int rop, int trans_color) { SiS300SetupDSTColorDepth(ivideo->DstColor); SiS300SetupSRCPitch(ivideo->video_linelength) SiS300SetupDSTRect(ivideo->video_linelength, 0xffff) if(trans_color != -1) { SiS300SetupROP(0x0A) SiS300SetupSRCTrans(trans_color) SiS300SetupCMDFlag(TRANSPARENT_BITBLT) } else { SiS300SetupROP(sisALUConv[rop]) } if(xdir > 0) { SiS300SetupCMDFlag(X_INC) } if(ydir > 0) { SiS300SetupCMDFlag(Y_INC) } } static void SiS300SubsequentScreenToScreenCopy(struct sis_video_info *ivideo, int src_x, int src_y, int dst_x, int dst_y, int width, int height) { u32 srcbase = 0, dstbase = 0; if(src_y >= 2048) { srcbase = ivideo->video_linelength * src_y; src_y = 0; } if(dst_y >= 2048) { dstbase = ivideo->video_linelength * dst_y; dst_y = 0; } SiS300SetupSRCBase(srcbase); SiS300SetupDSTBase(dstbase); if(!(ivideo->CommandReg & X_INC)) { src_x += width-1; dst_x += width-1; } if(!(ivideo->CommandReg & Y_INC)) { src_y += height-1; dst_y += height-1; } SiS300SetupRect(width, height) SiS300SetupSRCXY(src_x, src_y) SiS300SetupDSTXY(dst_x, dst_y) SiS300DoCMD } static void SiS300SetupForSolidFill(struct sis_video_info *ivideo, u32 color, int rop) { SiS300SetupPATFG(color) SiS300SetupDSTRect(ivideo->video_linelength, 0xffff) SiS300SetupDSTColorDepth(ivideo->DstColor); SiS300SetupROP(sisPatALUConv[rop]) SiS300SetupCMDFlag(PATFG) } static void SiS300SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h) { u32 dstbase = 0; if(y >= 2048) { dstbase = ivideo->video_linelength * y; y = 0; } SiS300SetupDSTBase(dstbase) SiS300SetupDSTXY(x,y) SiS300SetupRect(w,h) SiS300SetupCMDFlag(X_INC | Y_INC | BITBLT) SiS300DoCMD } #endif /* 315/330/340 series ---------------------------------------------- */ #ifdef CONFIG_FB_SIS_315 static void SiS310Sync(struct sis_video_info *ivideo) { SiS310Idle } static void SiS310SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int rop, int trans_color) { SiS310SetupDSTColorDepth(ivideo->DstColor); SiS310SetupSRCPitch(ivideo->video_linelength) SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff) if(trans_color != -1) { SiS310SetupROP(0x0A) SiS310SetupSRCTrans(trans_color) SiS310SetupCMDFlag(TRANSPARENT_BITBLT) } else { SiS310SetupROP(sisALUConv[rop]) /* Set command - not needed, both 0 */ /* SiSSetupCMDFlag(BITBLT | SRCVIDEO) */ } SiS310SetupCMDFlag(ivideo->SiS310_AccelDepth) /* The chip is smart enough to know the direction */ } static void SiS310SubsequentScreenToScreenCopy(struct sis_video_info *ivideo, int src_x, int src_y, int dst_x, int dst_y, int width, int height) { u32 srcbase = 0, dstbase = 0; int mymin = min(src_y, dst_y); int mymax = max(src_y, dst_y); /* Although the chip knows the direction to use * if the source and destination areas overlap, * that logic fails if we fiddle with the bitmap * addresses. Therefore, we check if the source * and destination blitting areas overlap and * adapt the bitmap addresses synchronously * if the coordinates exceed the valid range. * The areas do not overlap, we do our * normal check. */ if((mymax - mymin) < height) { if((src_y >= 2048) || (dst_y >= 2048)) { srcbase = ivideo->video_linelength * mymin; dstbase = ivideo->video_linelength * mymin; src_y -= mymin; dst_y -= mymin; } } else { if(src_y >= 2048) { srcbase = ivideo->video_linelength * src_y; src_y = 0; } if(dst_y >= 2048) { dstbase = ivideo->video_linelength * dst_y; dst_y = 0; } } srcbase += ivideo->video_offset; dstbase += ivideo->video_offset; SiS310SetupSRCBase(srcbase); SiS310SetupDSTBase(dstbase); SiS310SetupRect(width, height) SiS310SetupSRCXY(src_x, src_y) SiS310SetupDSTXY(dst_x, dst_y) SiS310DoCMD } static void SiS310SetupForSolidFill(struct sis_video_info *ivideo, u32 color, int rop) { SiS310SetupPATFG(color) SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff) SiS310SetupDSTColorDepth(ivideo->DstColor); SiS310SetupROP(sisPatALUConv[rop]) SiS310SetupCMDFlag(PATFG | ivideo->SiS310_AccelDepth) } static void SiS310SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h) { u32 dstbase = 0; if(y >= 2048) { dstbase = ivideo->video_linelength * y; y = 0; } dstbase += ivideo->video_offset; SiS310SetupDSTBase(dstbase) SiS310SetupDSTXY(x,y) SiS310SetupRect(w,h) SiS310SetupCMDFlag(BITBLT) SiS310DoCMD } #endif /* --------------------------------------------------------------------- */ /* The exported routines */ int sisfb_initaccel(struct sis_video_info *ivideo) { #ifdef SISFB_USE_SPINLOCKS spin_lock_init(&ivideo->lockaccel); #endif return 0; } void sisfb_syncaccel(struct sis_video_info *ivideo) { if(ivideo->sisvga_engine == SIS_300_VGA) { #ifdef CONFIG_FB_SIS_300 SiS300Sync(ivideo); #endif } else { #ifdef CONFIG_FB_SIS_315 SiS310Sync(ivideo); #endif } } int fbcon_sis_sync(struct fb_info *info) { struct sis_video_info *ivideo = (struct sis_video_info *)info->par; CRITFLAGS if((!ivideo->accel) || (!ivideo->engineok)) return 0; CRITBEGIN sisfb_syncaccel(ivideo); CRITEND return 0; } void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { struct sis_video_info *ivideo = (struct sis_video_info *)info->par; u32 col = 0; u32 vxres = info->var.xres_virtual; u32 vyres = info->var.yres_virtual; int width, height; CRITFLAGS if(info->state != FBINFO_STATE_RUNNING) return; if((!ivideo->accel) || (!ivideo->engineok)) { cfb_fillrect(info, rect); return; } if(!rect->width || !rect->height || rect->dx >= vxres || rect->dy >= vyres) return; /* Clipping */ width = ((rect->dx + rect->width) > vxres) ? (vxres - rect->dx) : rect->width; height = ((rect->dy + rect->height) > vyres) ? (vyres - rect->dy) : rect->height; switch(info->var.bits_per_pixel) { case 8: col = rect->color; break; case 16: case 32: col = ((u32 *)(info->pseudo_palette))[rect->color]; break; } if(ivideo->sisvga_engine == SIS_300_VGA) { #ifdef CONFIG_FB_SIS_300 CRITBEGIN SiS300SetupForSolidFill(ivideo, col, myrops[rect->rop]); SiS300SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height); CRITEND #endif } else { #ifdef CONFIG_FB_SIS_315 CRITBEGIN SiS310SetupForSolidFill(ivideo, col, myrops[rect->rop]); SiS310SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height); CRITEND #endif } sisfb_syncaccel(ivideo); } void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area) { struct sis_video_info *ivideo = (struct sis_video_info *)info->par; u32 vxres = info->var.xres_virtual; u32 vyres = info->var.yres_virtual; int width = area->width; int height = area->height; CRITFLAGS if(info->state != FBINFO_STATE_RUNNING) return; if((!ivideo->accel) || (!ivideo->engineok)) { cfb_copyarea(info, area); return; } if(!width || !height || area->sx >= vxres || area->sy >= vyres || area->dx >= vxres || area->dy >= vyres) return; /* Clipping */ if((area->sx + width) > vxres) width = vxres - area->sx; if((area->dx + width) > vxres) width = vxres - area->dx; if((area->sy + height) > vyres) height = vyres - area->sy; if((area->dy + height) > vyres) height = vyres - area->dy; if(ivideo->sisvga_engine == SIS_300_VGA) { #ifdef CONFIG_FB_SIS_300 int xdir, ydir; if(area->sx < area->dx) xdir = 0; else xdir = 1; if(area->sy < area->dy) ydir = 0; else ydir = 1; CRITBEGIN SiS300SetupForScreenToScreenCopy(ivideo, xdir, ydir, 3, -1); SiS300SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy, area->dx, area->dy, width, height); CRITEND #endif } else { #ifdef CONFIG_FB_SIS_315 CRITBEGIN SiS310SetupForScreenToScreenCopy(ivideo, 3, -1); SiS310SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy, area->dx, area->dy, width, height); CRITEND #endif } sisfb_syncaccel(ivideo); } |