drivers/video/sis/sis_accel.h

   1 /*
   2  * SiS 300/630/730/540/315/550/650/740 frame buffer driver
   3  * for Linux kernels 2.4.x and 2.5.x
   4  *
   5  * 2D acceleration part
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the named License,
  10  * or any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
  20  *
  21  * Based on the X driver's sis300_accel.h which is
  22  *     Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
  23  * and sis310_accel.h which is
  24  *     Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
  25  *
  26  * Author:   Thomas Winischhofer <thomas@winischhofer.net>:
  27  *                      (see http://www.winischhofer.net/
  28  *                      for more information and updates)
  29  */
  30
  31 #ifndef _SISFB_ACCEL_H
  32 #define _SISFB_ACCEL_H
  33
  34 /* Guard accelerator accesses with spin_lock_irqsave? Works well without. */
  35 #undef SISFB_USE_SPINLOCKS
  36
  37 #ifdef SISFB_USE_SPINLOCKS
  38 #include <linux/spinlock.h>
  39 #define CRITBEGIN  spin_lock_irqsave(&ivideo->lockaccel, critflags);
  40 #define CRITEND    spin_unlock_irqrestore(&ivideo->lockaccel, critflags);
  41 #define CRITFLAGS  unsigned long critflags;
  42 #else
  43 #define CRITBEGIN
  44 #define CRITEND
  45 #define CRITFLAGS
  46 #endif
  47
  48 /* Definitions for the SIS engine communication. */
  49
  50 #define PATREGSIZE      384  /* Pattern register size. 384 bytes @ 0x8300 */
  51 #define BR(x)   (0x8200 | (x) << 2)
  52 #define PBR(x)  (0x8300 | (x) << 2)
  53
  54 /* SiS300 engine commands */
  55 #define BITBLT                  0x00000000  /* Blit */
  56 #define COLOREXP                0x00000001  /* Color expand */
  57 #define ENCOLOREXP              0x00000002  /* Enhanced color expand */
  58 #define MULTIPLE_SCANLINE       0x00000003  /* ? */
  59 #define LINE                    0x00000004  /* Draw line */
  60 #define TRAPAZOID_FILL          0x00000005  /* Fill trapezoid */
  61 #define TRANSPARENT_BITBLT      0x00000006  /* Transparent Blit */
  62
  63 /* Additional engine commands for 315 */
  64 #define ALPHA_BLEND             0x00000007  /* Alpha blend ? */
  65 #define A3D_FUNCTION            0x00000008  /* 3D command ? */
  66 #define CLEAR_Z_BUFFER          0x00000009  /* ? */
  67 #define GRADIENT_FILL           0x0000000A  /* Gradient fill */
  68
  69 /* source select */
  70 #define SRCVIDEO                0x00000000  /* source is video RAM */
  71 #define SRCSYSTEM               0x00000010  /* source is system memory */
  72 #define SRCCPUBLITBUF           SRCSYSTEM   /* source is CPU-driven BitBuffer (for color expand) */
  73 #define SRCAGP                  0x00000020  /* source is AGP memory (?) */
  74
  75 /* Pattern flags */
  76 #define PATFG                   0x00000000  /* foreground color */
  77 #define PATPATREG               0x00000040  /* pattern in pattern buffer (0x8300) */
  78 #define PATMONO                 0x00000080  /* mono pattern */
  79
  80 /* blitting direction (300 series only) */
  81 #define X_INC                   0x00010000
  82 #define X_DEC                   0x00000000
  83 #define Y_INC                   0x00020000
  84 #define Y_DEC                   0x00000000
  85
  86 /* Clipping flags */
  87 #define NOCLIP                  0x00000000
  88 #define NOMERGECLIP             0x04000000
  89 #define CLIPENABLE              0x00040000
  90 #define CLIPWITHOUTMERGE        0x04040000
  91
  92 /* Transparency */
  93 #define OPAQUE                  0x00000000
  94 #define TRANSPARENT             0x00100000
  95
  96 /* ? */
  97 #define DSTAGP                  0x02000000
  98 #define DSTVIDEO                0x02000000
  99
 100 /* Subfunctions for Color/Enhanced Color Expansion (315 only) */
 101 #define COLOR_TO_MONO           0x00100000
 102 #define AA_TEXT                 0x00200000
 103
 104 /* Some general registers for 315 series */
 105 #define SRC_ADDR                0x8200
 106 #define SRC_PITCH               0x8204
 107 #define AGP_BASE                0x8206 /* color-depth dependent value */
 108 #define SRC_Y                   0x8208
 109 #define SRC_X                   0x820A
 110 #define DST_Y                   0x820C
 111 #define DST_X                   0x820E
 112 #define DST_ADDR                0x8210
 113 #define DST_PITCH               0x8214
 114 #define DST_HEIGHT              0x8216
 115 #define RECT_WIDTH              0x8218
 116 #define RECT_HEIGHT             0x821A
 117 #define PAT_FGCOLOR             0x821C
 118 #define PAT_BGCOLOR             0x8220
 119 #define SRC_FGCOLOR             0x8224
 120 #define SRC_BGCOLOR             0x8228
 121 #define MONO_MASK               0x822C
 122 #define LEFT_CLIP               0x8234
 123 #define TOP_CLIP                0x8236
 124 #define RIGHT_CLIP              0x8238
 125 #define BOTTOM_CLIP             0x823A
 126 #define COMMAND_READY           0x823C
 127 #define FIRE_TRIGGER            0x8240
 128
 129 #define PATTERN_REG             0x8300  /* 384 bytes pattern buffer */
 130
 131 /* Transparent bitblit registers */
 132 #define TRANS_DST_KEY_HIGH      PAT_FGCOLOR
 133 #define TRANS_DST_KEY_LOW       PAT_BGCOLOR
 134 #define TRANS_SRC_KEY_HIGH      SRC_FGCOLOR
 135 #define TRANS_SRC_KEY_LOW       SRC_BGCOLOR
 136
 137 /* Store queue length in par */
 138 #define CmdQueLen ivideo->cmdqueuelength
 139
 140 /* ------------- SiS 300 series -------------- */
 141
 142 /* BR(16) (0x8240):
 143
 144    bit 31 2D engine: 1 is idle,
 145    bit 30 3D engine: 1 is idle,
 146    bit 29 Command queue: 1 is empty
 147    bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
 148    bits 15:0:  Current command queue length
 149
 150 */
 151
 152 #define SiS300Idle \
 153   { \
 154         while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 155         while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 156         while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 157         CmdQueLen = MMIO_IN16(ivideo->mmio_vbase, 0x8240); \
 158   }
 159 /* (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
 160
 161 #define SiS300SetupSRCBase(base) \
 162         if(CmdQueLen <= 0) SiS300Idle;\
 163         MMIO_OUT32(ivideo->mmio_vbase, BR(0), base);\
 164         CmdQueLen--;
 165
 166 #define SiS300SetupSRCPitch(pitch) \
 167         if(CmdQueLen <= 0) SiS300Idle;\
 168         MMIO_OUT16(ivideo->mmio_vbase, BR(1), pitch);\
 169         CmdQueLen--;
 170
 171 #define SiS300SetupSRCXY(x,y) \
 172         if(CmdQueLen <= 0) SiS300Idle;\
 173         MMIO_OUT32(ivideo->mmio_vbase, BR(2), (x)<<16 | (y) );\
 174         CmdQueLen--;
 175
 176 #define SiS300SetupDSTBase(base) \
 177         if(CmdQueLen <= 0) SiS300Idle;\
 178         MMIO_OUT32(ivideo->mmio_vbase, BR(4), base);\
 179         CmdQueLen--;
 180
 181 #define SiS300SetupDSTXY(x,y) \
 182         if(CmdQueLen <= 0) SiS300Idle;\
 183         MMIO_OUT32(ivideo->mmio_vbase, BR(3), (x)<<16 | (y) );\
 184         CmdQueLen--;
 185
 186 #define SiS300SetupDSTRect(x,y) \
 187         if(CmdQueLen <= 0) SiS300Idle;\
 188         MMIO_OUT32(ivideo->mmio_vbase, BR(5), (y)<<16 | (x) );\
 189         CmdQueLen--;
 190
 191 #define SiS300SetupDSTColorDepth(bpp) \
 192         if(CmdQueLen <= 0) SiS300Idle;\
 193         MMIO_OUT16(ivideo->mmio_vbase, BR(1)+2, bpp);\
 194         CmdQueLen--;
 195
 196 #define SiS300SetupRect(w,h) \
 197         if(CmdQueLen <= 0) SiS300Idle;\
 198         MMIO_OUT32(ivideo->mmio_vbase, BR(6), (h)<<16 | (w) );\
 199         CmdQueLen--;
 200
 201 #define SiS300SetupPATFG(color) \
 202         if(CmdQueLen <= 0) SiS300Idle;\
 203         MMIO_OUT32(ivideo->mmio_vbase, BR(7), color);\
 204         CmdQueLen--;
 205
 206 #define SiS300SetupPATBG(color) \
 207         if(CmdQueLen <= 0) SiS300Idle;\
 208         MMIO_OUT32(ivideo->mmio_vbase, BR(8), color);\
 209         CmdQueLen--;
 210
 211 #define SiS300SetupSRCFG(color) \
 212         if(CmdQueLen <= 0) SiS300Idle;\
 213         MMIO_OUT32(ivideo->mmio_vbase, BR(9), color);\
 214         CmdQueLen--;
 215
 216 #define SiS300SetupSRCBG(color) \
 217         if(CmdQueLen <= 0) SiS300Idle;\
 218         MMIO_OUT32(ivideo->mmio_vbase, BR(10), color);\
 219         CmdQueLen--;
 220
 221 /* 0x8224 src colorkey high */
 222 /* 0x8228 src colorkey low */
 223 /* 0x821c dest colorkey high */
 224 /* 0x8220 dest colorkey low */
 225 #define SiS300SetupSRCTrans(color) \
 226         if(CmdQueLen <= 1) SiS300Idle;\
 227         MMIO_OUT32(ivideo->mmio_vbase, 0x8224, color);\
 228         MMIO_OUT32(ivideo->mmio_vbase, 0x8228, color);\
 229         CmdQueLen -= 2;
 230
 231 #define SiS300SetupDSTTrans(color) \
 232         if(CmdQueLen <= 1) SiS300Idle;\
 233         MMIO_OUT32(ivideo->mmio_vbase, 0x821C, color); \
 234         MMIO_OUT32(ivideo->mmio_vbase, 0x8220, color); \
 235         CmdQueLen -= 2;
 236
 237 #define SiS300SetupMONOPAT(p0,p1) \
 238         if(CmdQueLen <= 1) SiS300Idle;\
 239         MMIO_OUT32(ivideo->mmio_vbase, BR(11), p0);\
 240         MMIO_OUT32(ivideo->mmio_vbase, BR(12), p1);\
 241         CmdQueLen -= 2;
 242
 243 #define SiS300SetupClipLT(left,top) \
 244         if(CmdQueLen <= 0) SiS300Idle;\
 245         MMIO_OUT32(ivideo->mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
 246         CmdQueLen--;
 247
 248 #define SiS300SetupClipRB(right,bottom) \
 249         if(CmdQueLen <= 0) SiS300Idle;\
 250         MMIO_OUT32(ivideo->mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
 251         CmdQueLen--;
 252
 253 /* General */
 254 #define SiS300SetupROP(rop) \
 255         ivideo->CommandReg = (rop) << 8;
 256
 257 #define SiS300SetupCMDFlag(flags) \
 258         ivideo->CommandReg |= (flags);
 259
 260 #define SiS300DoCMD \
 261         if(CmdQueLen <= 1) SiS300Idle;\
 262         MMIO_OUT32(ivideo->mmio_vbase, BR(15), ivideo->CommandReg); \
 263         MMIO_OUT32(ivideo->mmio_vbase, BR(16), 0);\
 264         CmdQueLen -= 2;
 265
 266 /* -------------- SiS 315/330 series --------------- */
 267
 268 /* Q_STATUS:
 269    bit 31 = 1: All engines idle and all queues empty
 270    bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
 271    bit 29 = 1: 2D engine is idle
 272    bit 28 = 1: 3D engine is idle
 273    bit 27 = 1: HW command queue empty
 274    bit 26 = 1: 2D queue empty
 275    bit 25 = 1: 3D queue empty
 276    bit 24 = 1: SW command queue empty
 277    bits 23:16: 2D counter 3
 278    bits 15:8:  2D counter 2
 279    bits 7:0:   2D counter 1
 280 */
 281
 282 #define SiS310Idle \
 283   { \
 284         while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 285         while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 286         CmdQueLen = 0; \
 287   }
 288
 289 #define SiS310SetupSRCBase(base) \
 290         if(CmdQueLen <= 0) SiS310Idle;\
 291         MMIO_OUT32(ivideo->mmio_vbase, SRC_ADDR, base);\
 292         CmdQueLen--;
 293
 294 #define SiS310SetupSRCPitch(pitch) \
 295         if(CmdQueLen <= 0) SiS310Idle;\
 296         MMIO_OUT16(ivideo->mmio_vbase, SRC_PITCH, pitch);\
 297         CmdQueLen--;
 298
 299 #define SiS310SetupSRCXY(x,y) \
 300         if(CmdQueLen <= 0) SiS310Idle;\
 301         MMIO_OUT32(ivideo->mmio_vbase, SRC_Y, (x)<<16 | (y) );\
 302         CmdQueLen--;
 303
 304 #define SiS310SetupDSTBase(base) \
 305         if(CmdQueLen <= 0) SiS310Idle;\
 306         MMIO_OUT32(ivideo->mmio_vbase, DST_ADDR, base);\
 307         CmdQueLen--;
 308
 309 #define SiS310SetupDSTXY(x,y) \
 310         if(CmdQueLen <= 0) SiS310Idle;\
 311         MMIO_OUT32(ivideo->mmio_vbase, DST_Y, (x)<<16 | (y) );\
 312         CmdQueLen--;
 313
 314 #define SiS310SetupDSTRect(x,y) \
 315         if(CmdQueLen <= 0) SiS310Idle;\
 316         MMIO_OUT32(ivideo->mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
 317         CmdQueLen--;
 318
 319 #define SiS310SetupDSTColorDepth(bpp) \
 320         if(CmdQueLen <= 0) SiS310Idle;\
 321         MMIO_OUT16(ivideo->mmio_vbase, AGP_BASE, bpp);\
 322         CmdQueLen--;
 323
 324 #define SiS310SetupRect(w,h) \
 325         if(CmdQueLen <= 0) SiS310Idle;\
 326         MMIO_OUT32(ivideo->mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
 327         CmdQueLen--;
 328
 329 #define SiS310SetupPATFG(color) \
 330         if(CmdQueLen <= 0) SiS310Idle;\
 331         MMIO_OUT32(ivideo->mmio_vbase, PAT_FGCOLOR, color);\
 332         CmdQueLen--;
 333
 334 #define SiS310SetupPATBG(color) \
 335         if(CmdQueLen <= 0) SiS310Idle;\
 336         MMIO_OUT32(ivideo->mmio_vbase, PAT_BGCOLOR, color);\
 337         CmdQueLen--;
 338
 339 #define SiS310SetupSRCFG(color) \
 340         if(CmdQueLen <= 0) SiS310Idle;\
 341         MMIO_OUT32(ivideo->mmio_vbase, SRC_FGCOLOR, color);\
 342         CmdQueLen--;
 343
 344 #define SiS310SetupSRCBG(color) \
 345         if(CmdQueLen <= 0) SiS310Idle;\
 346         MMIO_OUT32(ivideo->mmio_vbase, SRC_BGCOLOR, color);\
 347         CmdQueLen--;
 348
 349 #define SiS310SetupSRCTrans(color) \
 350         if(CmdQueLen <= 1) SiS310Idle;\
 351         MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
 352         MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_LOW, color);\
 353         CmdQueLen -= 2;
 354
 355 #define SiS310SetupDSTTrans(color) \
 356         if(CmdQueLen <= 1) SiS310Idle;\
 357         MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_HIGH, color); \
 358         MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_LOW, color); \
 359         CmdQueLen -= 2;
 360
 361 #define SiS310SetupMONOPAT(p0,p1) \
 362         if(CmdQueLen <= 1) SiS310Idle;\
 363         MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK, p0);\
 364         MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK+4, p1);\
 365         CmdQueLen -= 2;
 366
 367 #define SiS310SetupClipLT(left,top) \
 368         if(CmdQueLen <= 0) SiS310Idle;\
 369         MMIO_OUT32(ivideo->mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
 370         CmdQueLen--;
 371
 372 #define SiS310SetupClipRB(right,bottom) \
 373         if(CmdQueLen <= 0) SiS310Idle;\
 374         MMIO_OUT32(ivideo->mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
 375         CmdQueLen--;
 376
 377 #define SiS310SetupROP(rop) \
 378         ivideo->CommandReg = (rop) << 8;
 379
 380 #define SiS310SetupCMDFlag(flags) \
 381         ivideo->CommandReg |= (flags);
 382
 383 #define SiS310DoCMD \
 384         if(CmdQueLen <= 1) SiS310Idle;\
 385         MMIO_OUT32(ivideo->mmio_vbase, COMMAND_READY, ivideo->CommandReg); \
 386         MMIO_OUT32(ivideo->mmio_vbase, FIRE_TRIGGER, 0); \
 387         CmdQueLen -= 2;
 388
 389
 390 int  sisfb_initaccel(struct sis_video_info *ivideo);
 391 void sisfb_syncaccel(struct sis_video_info *ivideo);
 392
 393 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33)
 394 void fbcon_sis_bmove(struct display *p, int srcy, int srcx, int dsty,
 395                         int dstx, int height, int width);
 396 void fbcon_sis_revc(struct display *p, int srcy, int srcx);
 397 void fbcon_sis_clear8(struct vc_data *conp, struct display *p, int srcy,
 398                         int srcx, int height, int width);
 399 void fbcon_sis_clear16(struct vc_data *conp, struct display *p, int srcy,
 400                         int srcx, int height, int width);
 401 void fbcon_sis_clear32(struct vc_data *conp, struct display *p, int srcy,
 402                         int srcx, int height, int width);
 403 #endif
 404 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)
 405 void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 406 void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 407 #endif
 408
 409 #endif