LXR linux/drivers/video/fbdev/sis/sis

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