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

   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
 393int  sisfb_initaccel(struct sis_video_info *ivideo);
 394void sisfb_syncaccel(struct sis_video_info *ivideo);
 395
 396int  fbcon_sis_sync(struct fb_info *info);
 397void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 398void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 399
 400#endif
 401