drivers/video/fbdev/sis/sis_accel.h

   1 /*
   2  * SiS 300/540/630[S]/730[S],
   3  * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX],
   4  * XGI V3XT/V5/V8, Z7
   5  * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
   6  *
   7  * 2D acceleration part
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the named License,
  12  * or any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
  22  *
  23  * Based on the X driver's sis300_accel.h which is
  24  *     Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
  25  * and sis310_accel.h which is
  26  *     Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
  27  *
  28  * Author:   Thomas Winischhofer <thomas@winischhofer.net>:
  29  *                      (see http://www.winischhofer.net/
  30  *                      for more information and updates)
  31  */
  32
  33 #ifndef _SISFB_ACCEL_H
  34 #define _SISFB_ACCEL_H
  35
  36 /* Guard accelerator accesses with spin_lock_irqsave? Works well without. */
  37 #undef SISFB_USE_SPINLOCKS
  38
  39 #ifdef SISFB_USE_SPINLOCKS
  40 #include <linux/spinlock.h>
  41 #define CRITBEGIN  spin_lock_irqsave(&ivideo->lockaccel, critflags);
  42 #define CRITEND    spin_unlock_irqrestore(&ivideo->lockaccel, critflags);
  43 #define CRITFLAGS  unsigned long critflags;
  44 #else
  45 #define CRITBEGIN
  46 #define CRITEND
  47 #define CRITFLAGS
  48 #endif
  49
  50 /* Definitions for the SIS engine communication. */
  51
  52 #define PATREGSIZE      384  /* Pattern register size. 384 bytes @ 0x8300 */
  53 #define BR(x)   (0x8200 | (x) << 2)
  54 #define PBR(x)  (0x8300 | (x) << 2)
  55
  56 /* SiS300 engine commands */
  57 #define BITBLT                  0x00000000  /* Blit */
  58 #define COLOREXP                0x00000001  /* Color expand */
  59 #define ENCOLOREXP              0x00000002  /* Enhanced color expand */
  60 #define MULTIPLE_SCANLINE       0x00000003  /* ? */
  61 #define LINE                    0x00000004  /* Draw line */
  62 #define TRAPAZOID_FILL          0x00000005  /* Fill trapezoid */
  63 #define TRANSPARENT_BITBLT      0x00000006  /* Transparent Blit */
  64
  65 /* Additional engine commands for 315 */
  66 #define ALPHA_BLEND             0x00000007  /* Alpha blend ? */
  67 #define A3D_FUNCTION            0x00000008  /* 3D command ? */
  68 #define CLEAR_Z_BUFFER          0x00000009  /* ? */
  69 #define GRADIENT_FILL           0x0000000A  /* Gradient fill */
  70
  71 /* source select */
  72 #define SRCVIDEO                0x00000000  /* source is video RAM */
  73 #define SRCSYSTEM               0x00000010  /* source is system memory */
  74 #define SRCCPUBLITBUF           SRCSYSTEM   /* source is CPU-driven BitBuffer (for color expand) */
  75 #define SRCAGP                  0x00000020  /* source is AGP memory (?) */
  76
  77 /* Pattern flags */
  78 #define PATFG                   0x00000000  /* foreground color */
  79 #define PATPATREG               0x00000040  /* pattern in pattern buffer (0x8300) */
  80 #define PATMONO                 0x00000080  /* mono pattern */
  81
  82 /* blitting direction (300 series only) */
  83 #define X_INC                   0x00010000
  84 #define X_DEC                   0x00000000
  85 #define Y_INC                   0x00020000
  86 #define Y_DEC                   0x00000000
  87
  88 /* Clipping flags */
  89 #define NOCLIP                  0x00000000
  90 #define NOMERGECLIP             0x04000000
  91 #define CLIPENABLE              0x00040000
  92 #define CLIPWITHOUTMERGE        0x04040000
  93
  94 /* Transparency */
  95 #define OPAQUE                  0x00000000
  96 #define TRANSPARENT             0x00100000
  97
  98 /* ? */
  99 #define DSTAGP                  0x02000000
 100 #define DSTVIDEO                0x02000000
 101
 102 /* Subfunctions for Color/Enhanced Color Expansion (315 only) */
 103 #define COLOR_TO_MONO           0x00100000
 104 #define AA_TEXT                 0x00200000
 105
 106 /* Some general registers for 315 series */
 107 #define SRC_ADDR                0x8200
 108 #define SRC_PITCH               0x8204
 109 #define AGP_BASE                0x8206 /* color-depth dependent value */
 110 #define SRC_Y                   0x8208
 111 #define SRC_X                   0x820A
 112 #define DST_Y                   0x820C
 113 #define DST_X                   0x820E
 114 #define DST_ADDR                0x8210
 115 #define DST_PITCH               0x8214
 116 #define DST_HEIGHT              0x8216
 117 #define RECT_WIDTH              0x8218
 118 #define RECT_HEIGHT             0x821A
 119 #define PAT_FGCOLOR             0x821C
 120 #define PAT_BGCOLOR             0x8220
 121 #define SRC_FGCOLOR             0x8224
 122 #define SRC_BGCOLOR             0x8228
 123 #define MONO_MASK               0x822C
 124 #define LEFT_CLIP               0x8234
 125 #define TOP_CLIP                0x8236
 126 #define RIGHT_CLIP              0x8238
 127 #define BOTTOM_CLIP             0x823A
 128 #define COMMAND_READY           0x823C
 129 #define FIRE_TRIGGER            0x8240
 130
 131 #define PATTERN_REG             0x8300  /* 384 bytes pattern buffer */
 132
 133 /* Transparent bitblit registers */
 134 #define TRANS_DST_KEY_HIGH      PAT_FGCOLOR
 135 #define TRANS_DST_KEY_LOW       PAT_BGCOLOR
 136 #define TRANS_SRC_KEY_HIGH      SRC_FGCOLOR
 137 #define TRANS_SRC_KEY_LOW       SRC_BGCOLOR
 138
 139 /* Store queue length in par */
 140 #define CmdQueLen ivideo->cmdqueuelength
 141
 142 /* ------------- SiS 300 series -------------- */
 143
 144 /* BR(16) (0x8240):
 145
 146    bit 31 2D engine: 1 is idle,
 147    bit 30 3D engine: 1 is idle,
 148    bit 29 Command queue: 1 is empty
 149    bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
 150    bits 15:0:  Current command queue length
 151
 152 */
 153
 154 #define SiS300Idle \
 155   { \
 156         while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 157         while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 158         while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 159         CmdQueLen = MMIO_IN16(ivideo->mmio_vbase, 0x8240); \
 160   }
 161 /* (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
 162
 163 #define SiS300SetupSRCBase(base) \
 164         if(CmdQueLen <= 0) SiS300Idle;\
 165         MMIO_OUT32(ivideo->mmio_vbase, BR(0), base);\
 166         CmdQueLen--;
 167
 168 #define SiS300SetupSRCPitch(pitch) \
 169         if(CmdQueLen <= 0) SiS300Idle;\
 170         MMIO_OUT16(ivideo->mmio_vbase, BR(1), pitch);\
 171         CmdQueLen--;
 172
 173 #define SiS300SetupSRCXY(x,y) \
 174         if(CmdQueLen <= 0) SiS300Idle;\
 175         MMIO_OUT32(ivideo->mmio_vbase, BR(2), (x)<<16 | (y) );\
 176         CmdQueLen--;
 177
 178 #define SiS300SetupDSTBase(base) \
 179         if(CmdQueLen <= 0) SiS300Idle;\
 180         MMIO_OUT32(ivideo->mmio_vbase, BR(4), base);\
 181         CmdQueLen--;
 182
 183 #define SiS300SetupDSTXY(x,y) \
 184         if(CmdQueLen <= 0) SiS300Idle;\
 185         MMIO_OUT32(ivideo->mmio_vbase, BR(3), (x)<<16 | (y) );\
 186         CmdQueLen--;
 187
 188 #define SiS300SetupDSTRect(x,y) \
 189         if(CmdQueLen <= 0) SiS300Idle;\
 190         MMIO_OUT32(ivideo->mmio_vbase, BR(5), (y)<<16 | (x) );\
 191         CmdQueLen--;
 192
 193 #define SiS300SetupDSTColorDepth(bpp) \
 194         if(CmdQueLen <= 0) SiS300Idle;\
 195         MMIO_OUT16(ivideo->mmio_vbase, BR(1)+2, bpp);\
 196         CmdQueLen--;
 197
 198 #define SiS300SetupRect(w,h) \
 199         if(CmdQueLen <= 0) SiS300Idle;\
 200         MMIO_OUT32(ivideo->mmio_vbase, BR(6), (h)<<16 | (w) );\
 201         CmdQueLen--;
 202
 203 #define SiS300SetupPATFG(color) \
 204         if(CmdQueLen <= 0) SiS300Idle;\
 205         MMIO_OUT32(ivideo->mmio_vbase, BR(7), color);\
 206         CmdQueLen--;
 207
 208 #define SiS300SetupPATBG(color) \
 209         if(CmdQueLen <= 0) SiS300Idle;\
 210         MMIO_OUT32(ivideo->mmio_vbase, BR(8), color);\
 211         CmdQueLen--;
 212
 213 #define SiS300SetupSRCFG(color) \
 214         if(CmdQueLen <= 0) SiS300Idle;\
 215         MMIO_OUT32(ivideo->mmio_vbase, BR(9), color);\
 216         CmdQueLen--;
 217
 218 #define SiS300SetupSRCBG(color) \
 219         if(CmdQueLen <= 0) SiS300Idle;\
 220         MMIO_OUT32(ivideo->mmio_vbase, BR(10), color);\
 221         CmdQueLen--;
 222
 223 /* 0x8224 src colorkey high */
 224 /* 0x8228 src colorkey low */
 225 /* 0x821c dest colorkey high */
 226 /* 0x8220 dest colorkey low */
 227 #define SiS300SetupSRCTrans(color) \
 228         if(CmdQueLen <= 1) SiS300Idle;\
 229         MMIO_OUT32(ivideo->mmio_vbase, 0x8224, color);\
 230         MMIO_OUT32(ivideo->mmio_vbase, 0x8228, color);\
 231         CmdQueLen -= 2;
 232
 233 #define SiS300SetupDSTTrans(color) \
 234         if(CmdQueLen <= 1) SiS300Idle;\
 235         MMIO_OUT32(ivideo->mmio_vbase, 0x821C, color); \
 236         MMIO_OUT32(ivideo->mmio_vbase, 0x8220, color); \
 237         CmdQueLen -= 2;
 238
 239 #define SiS300SetupMONOPAT(p0,p1) \
 240         if(CmdQueLen <= 1) SiS300Idle;\
 241         MMIO_OUT32(ivideo->mmio_vbase, BR(11), p0);\
 242         MMIO_OUT32(ivideo->mmio_vbase, BR(12), p1);\
 243         CmdQueLen -= 2;
 244
 245 #define SiS300SetupClipLT(left,top) \
 246         if(CmdQueLen <= 0) SiS300Idle;\
 247         MMIO_OUT32(ivideo->mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
 248         CmdQueLen--;
 249
 250 #define SiS300SetupClipRB(right,bottom) \
 251         if(CmdQueLen <= 0) SiS300Idle;\
 252         MMIO_OUT32(ivideo->mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
 253         CmdQueLen--;
 254
 255 /* General */
 256 #define SiS300SetupROP(rop) \
 257         ivideo->CommandReg = (rop) << 8;
 258
 259 #define SiS300SetupCMDFlag(flags) \
 260         ivideo->CommandReg |= (flags);
 261
 262 #define SiS300DoCMD \
 263         if(CmdQueLen <= 1) SiS300Idle;\
 264         MMIO_OUT32(ivideo->mmio_vbase, BR(15), ivideo->CommandReg); \
 265         MMIO_OUT32(ivideo->mmio_vbase, BR(16), 0);\
 266         CmdQueLen -= 2;
 267
 268 /* -------------- SiS 315/330 series --------------- */
 269
 270 /* Q_STATUS:
 271    bit 31 = 1: All engines idle and all queues empty
 272    bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
 273    bit 29 = 1: 2D engine is idle
 274    bit 28 = 1: 3D engine is idle
 275    bit 27 = 1: HW command queue empty
 276    bit 26 = 1: 2D queue empty
 277    bit 25 = 1: 3D queue empty
 278    bit 24 = 1: SW command queue empty
 279    bits 23:16: 2D counter 3
 280    bits 15:8:  2D counter 2
 281    bits 7:0:   2D counter 1
 282 */
 283
 284 #define SiS310Idle \
 285   { \
 286         while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 287         while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 288         while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 289         while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 290         CmdQueLen = 0; \
 291   }
 292
 293 #define SiS310SetupSRCBase(base) \
 294         if(CmdQueLen <= 0) SiS310Idle;\
 295         MMIO_OUT32(ivideo->mmio_vbase, SRC_ADDR, base);\
 296         CmdQueLen--;
 297
 298 #define SiS310SetupSRCPitch(pitch) \
 299         if(CmdQueLen <= 0) SiS310Idle;\
 300         MMIO_OUT16(ivideo->mmio_vbase, SRC_PITCH, pitch);\
 301         CmdQueLen--;
 302
 303 #define SiS310SetupSRCXY(x,y) \
 304         if(CmdQueLen <= 0) SiS310Idle;\
 305         MMIO_OUT32(ivideo->mmio_vbase, SRC_Y, (x)<<16 | (y) );\
 306         CmdQueLen--;
 307
 308 #define SiS310SetupDSTBase(base) \
 309         if(CmdQueLen <= 0) SiS310Idle;\
 310         MMIO_OUT32(ivideo->mmio_vbase, DST_ADDR, base);\
 311         CmdQueLen--;
 312
 313 #define SiS310SetupDSTXY(x,y) \
 314         if(CmdQueLen <= 0) SiS310Idle;\
 315         MMIO_OUT32(ivideo->mmio_vbase, DST_Y, (x)<<16 | (y) );\
 316         CmdQueLen--;
 317
 318 #define SiS310SetupDSTRect(x,y) \
 319         if(CmdQueLen <= 0) SiS310Idle;\
 320         MMIO_OUT32(ivideo->mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
 321         CmdQueLen--;
 322
 323 #define SiS310SetupDSTColorDepth(bpp) \
 324         if(CmdQueLen <= 0) SiS310Idle;\
 325         MMIO_OUT16(ivideo->mmio_vbase, AGP_BASE, bpp);\
 326         CmdQueLen--;
 327
 328 #define SiS310SetupRect(w,h) \
 329         if(CmdQueLen <= 0) SiS310Idle;\
 330         MMIO_OUT32(ivideo->mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
 331         CmdQueLen--;
 332
 333 #define SiS310SetupPATFG(color) \
 334         if(CmdQueLen <= 0) SiS310Idle;\
 335         MMIO_OUT32(ivideo->mmio_vbase, PAT_FGCOLOR, color);\
 336         CmdQueLen--;
 337
 338 #define SiS310SetupPATBG(color) \
 339         if(CmdQueLen <= 0) SiS310Idle;\
 340         MMIO_OUT32(ivideo->mmio_vbase, PAT_BGCOLOR, color);\
 341         CmdQueLen--;
 342
 343 #define SiS310SetupSRCFG(color) \
 344         if(CmdQueLen <= 0) SiS310Idle;\
 345         MMIO_OUT32(ivideo->mmio_vbase, SRC_FGCOLOR, color);\
 346         CmdQueLen--;
 347
 348 #define SiS310SetupSRCBG(color) \
 349         if(CmdQueLen <= 0) SiS310Idle;\
 350         MMIO_OUT32(ivideo->mmio_vbase, SRC_BGCOLOR, color);\
 351         CmdQueLen--;
 352
 353 #define SiS310SetupSRCTrans(color) \
 354         if(CmdQueLen <= 1) SiS310Idle;\
 355         MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
 356         MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_LOW, color);\
 357         CmdQueLen -= 2;
 358
 359 #define SiS310SetupDSTTrans(color) \
 360         if(CmdQueLen <= 1) SiS310Idle;\
 361         MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_HIGH, color); \
 362         MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_LOW, color); \
 363         CmdQueLen -= 2;
 364
 365 #define SiS310SetupMONOPAT(p0,p1) \
 366         if(CmdQueLen <= 1) SiS310Idle;\
 367         MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK, p0);\
 368         MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK+4, p1);\
 369         CmdQueLen -= 2;
 370
 371 #define SiS310SetupClipLT(left,top) \
 372         if(CmdQueLen <= 0) SiS310Idle;\
 373         MMIO_OUT32(ivideo->mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
 374         CmdQueLen--;
 375
 376 #define SiS310SetupClipRB(right,bottom) \
 377         if(CmdQueLen <= 0) SiS310Idle;\
 378         MMIO_OUT32(ivideo->mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
 379         CmdQueLen--;
 380
 381 #define SiS310SetupROP(rop) \
 382         ivideo->CommandReg = (rop) << 8;
 383
 384 #define SiS310SetupCMDFlag(flags) \
 385         ivideo->CommandReg |= (flags);
 386
 387 #define SiS310DoCMD \
 388         if(CmdQueLen <= 1) SiS310Idle;\
 389         MMIO_OUT32(ivideo->mmio_vbase, COMMAND_READY, ivideo->CommandReg); \
 390         MMIO_OUT32(ivideo->mmio_vbase, FIRE_TRIGGER, 0); \
 391         CmdQueLen -= 2;
 392
 393 int  sisfb_initaccel(struct sis_video_info *ivideo);
 394 void sisfb_syncaccel(struct sis_video_info *ivideo);
 395
 396 int  fbcon_sis_sync(struct fb_info *info);
 397 void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 398 void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 399
 400 #endif