drivers/video/fbdev/sis/sis_accel.h

   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