drivers/staging/xgifb/XGI_accel.h

   1 /*
   2  * XGI 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  * Based on the X driver's XGI300_accel.h which is
   8  *     Copyright Xavier Ducoin <x.ducoin@lectra.com>
   9  *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
  10  * and XGI310_accel.h which is
  11  *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
  12  *
  13  * Author:   Thomas Winischhofer <thomas@winischhofer.net>:
  14  *                      (see http://www.winischhofer.net/
  15  *                      for more information and updates)
  16  */
  17
  18 #ifndef _XGIFB_ACCEL_H
  19 #define _XGIFB_ACCEL_H
  20
  21 /* Definitions for the XGI engine communication. */
  22
  23 #define PATREGSIZE      384  /* Pattern register size. 384 bytes @ 0x8300 */
  24 #define BR(x)   (0x8200 | (x) << 2)
  25 #define PBR(x)  (0x8300 | (x) << 2)
  26
  27 /* XGI300 engine commands */
  28 #define BITBLT                  0x00000000  /* Blit */
  29 #define COLOREXP                0x00000001  /* Color expand */
  30 #define ENCOLOREXP              0x00000002  /* Enhanced color expand */
  31 #define MULTIPLE_SCANLINE       0x00000003  /* ? */
  32 #define LINE                    0x00000004  /* Draw line */
  33 #define TRAPAZOID_FILL          0x00000005  /* Fill trapezoid */
  34 #define TRANSPARENT_BITBLT      0x00000006  /* Transparent Blit */
  35
  36 /* Additional engine commands for 310/325 */
  37 #define ALPHA_BLEND             0x00000007  /* Alpha blend ? */
  38 #define A3D_FUNCTION            0x00000008  /* 3D command ? */
  39 #define CLEAR_Z_BUFFER          0x00000009  /* ? */
  40 #define GRADIENT_FILL           0x0000000A  /* Gradient fill */
  41 #define STRETCH_BITBLT          0x0000000B  /* Stretched Blit */
  42
  43 /* source select */
  44 #define SRCVIDEO                0x00000000  /* source is video RAM */
  45 #define SRCSYSTEM               0x00000010  /* source is system memory */
  46 #define SRCCPUBLITBUF           SRCSYSTEM   /* source is CPU-driven BitBuffer (for color expand) */
  47 #define SRCAGP                  0x00000020  /* source is AGP memory (?) */
  48
  49 /* Pattern flags */
  50 #define PATFG                   0x00000000  /* foreground color */
  51 #define PATPATREG               0x00000040  /* pattern in pattern buffer (0x8300) */
  52 #define PATMONO                 0x00000080  /* mono pattern */
  53
  54 /* blitting direction (300 series only) */
  55 #define X_INC                   0x00010000
  56 #define X_DEC                   0x00000000
  57 #define Y_INC                   0x00020000
  58 #define Y_DEC                   0x00000000
  59
  60 /* Clipping flags */
  61 #define NOCLIP                  0x00000000
  62 #define NOMERGECLIP             0x04000000
  63 #define CLIPENABLE              0x00040000
  64 #define CLIPWITHOUTMERGE        0x04040000
  65
  66 /* Transparency */
  67 #define OPAQUE                  0x00000000
  68 #define TRANSPARENT             0x00100000
  69
  70 /* ? */
  71 #define DSTAGP                  0x02000000
  72 #define DSTVIDEO                0x02000000
  73
  74 /* Line */
  75 #define LINE_STYLE              0x00800000
  76 #define NO_RESET_COUNTER        0x00400000
  77 #define NO_LAST_PIXEL           0x00200000
  78
  79 /* Subfunctions for Color/Enhanced Color Expansion (310/325 only) */
  80 #define COLOR_TO_MONO           0x00100000
  81 #define AA_TEXT                 0x00200000
  82
  83 /* Some general registers for 310/325 series */
  84 #define SRC_ADDR                0x8200
  85 #define SRC_PITCH               0x8204
  86 #define AGP_BASE                0x8206 /* color-depth dependent value */
  87 #define SRC_Y                   0x8208
  88 #define SRC_X                   0x820A
  89 #define DST_Y                   0x820C
  90 #define DST_X                   0x820E
  91 #define DST_ADDR                0x8210
  92 #define DST_PITCH               0x8214
  93 #define DST_HEIGHT              0x8216
  94 #define RECT_WIDTH              0x8218
  95 #define RECT_HEIGHT             0x821A
  96 #define PAT_FGCOLOR             0x821C
  97 #define PAT_BGCOLOR             0x8220
  98 #define SRC_FGCOLOR             0x8224
  99 #define SRC_BGCOLOR             0x8228
 100 #define MONO_MASK               0x822C
 101 #define LEFT_CLIP               0x8234
 102 #define TOP_CLIP                0x8236
 103 #define RIGHT_CLIP              0x8238
 104 #define BOTTOM_CLIP             0x823A
 105 #define COMMAND_READY           0x823C
 106 #define FIRE_TRIGGER            0x8240
 107
 108 #define PATTERN_REG             0x8300  /* 384 bytes pattern buffer */
 109
 110 /* Line registers */
 111 #define LINE_X0                 SRC_Y
 112 #define LINE_X1                 DST_Y
 113 #define LINE_Y0                 SRC_X
 114 #define LINE_Y1                 DST_X
 115 #define LINE_COUNT              RECT_WIDTH
 116 #define LINE_STYLE_PERIOD       RECT_HEIGHT
 117 #define LINE_STYLE_0            MONO_MASK
 118 #define LINE_STYLE_1            0x8230
 119 #define LINE_XN                 PATTERN_REG
 120 #define LINE_YN                 PATTERN_REG+2
 121
 122 /* Transparent bitblit registers */
 123 #define TRANS_DST_KEY_HIGH      PAT_FGCOLOR
 124 #define TRANS_DST_KEY_LOW       PAT_BGCOLOR
 125 #define TRANS_SRC_KEY_HIGH      SRC_FGCOLOR
 126 #define TRANS_SRC_KEY_LOW       SRC_BGCOLOR
 127
 128 /* Queue */
 129 #define Q_BASE_ADDR             0x85C0  /* Base address of software queue (?) */
 130 #define Q_WRITE_PTR             0x85C4  /* Current write pointer (?) */
 131 #define Q_READ_PTR              0x85C8  /* Current read pointer (?) */
 132 #define Q_STATUS                0x85CC  /* queue status */
 133
 134
 135 #define MMIO_IN8(base, offset) \
 136         *(volatile u8 *)(((u8*)(base)) + (offset))
 137 #define MMIO_IN16(base, offset) \
 138         *(volatile u16 *)(void *)(((u8*)(base)) + (offset))
 139 #define MMIO_IN32(base, offset) \
 140         *(volatile u32 *)(void *)(((u8*)(base)) + (offset))
 141 #define MMIO_OUT8(base, offset, val) \
 142         *(volatile u8 *)(((u8*)(base)) + (offset)) = (val)
 143 #define MMIO_OUT16(base, offset, val) \
 144         *(volatile u16 *)(void *)(((u8*)(base)) + (offset)) = (val)
 145 #define MMIO_OUT32(base, offset, val) \
 146         *(volatile u32 *)(void *)(((u8*)(base)) + (offset)) = (val)
 147
 148
 149
 150 /* ------------- XGI 300 series -------------- */
 151
 152 /* Macros to do useful things with the XGI BitBLT engine */
 153
 154 /* BR(16) (0x8420):
 155
 156    bit 31 2D engine: 1 is idle,
 157    bit 30 3D engine: 1 is idle,
 158    bit 29 Command queue: 1 is empty
 159
 160    bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
 161
 162    bits 15:0:  Current command queue length
 163
 164 */
 165
 166 /* TW: BR(16)+2 = 0x8242 */
 167
 168 static int     xgiCmdQueLen;
 169
 170 #define XGI300Idle \
 171   { \
 172   while( (MMIO_IN16(xgi_video_info.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 173   while( (MMIO_IN16(xgi_video_info.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 174   while( (MMIO_IN16(xgi_video_info.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
 175   xgiCmdQueLen=MMIO_IN16(xgi_video_info.mmio_vbase, 0x8240); \
 176   }
 177 /* TW: (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
 178
 179 #define XGI300SetupSRCBase(base) \
 180                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 181                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(0), base);\
 182                 xgiCmdQueLen --;
 183
 184 #define XGI300SetupSRCPitch(pitch) \
 185                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 186                 MMIO_OUT16(xgi_video_info.mmio_vbase, BR(1), pitch);\
 187                 xgiCmdQueLen --;
 188
 189 #define XGI300SetupSRCXY(x,y) \
 190                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 191                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(2), (x)<<16 | (y) );\
 192                 xgiCmdQueLen --;
 193
 194 #define XGI300SetupDSTBase(base) \
 195                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 196                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(4), base);\
 197                 xgiCmdQueLen --;
 198
 199 #define XGI300SetupDSTXY(x,y) \
 200                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 201                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(3), (x)<<16 | (y) );\
 202                 xgiCmdQueLen --;
 203
 204 #define XGI300SetupDSTRect(x,y) \
 205                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 206                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(5), (y)<<16 | (x) );\
 207                 xgiCmdQueLen --;
 208
 209 #define XGI300SetupDSTColorDepth(bpp) \
 210                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 211                 MMIO_OUT16(xgi_video_info.mmio_vbase, BR(1)+2, bpp);\
 212                 xgiCmdQueLen --;
 213
 214 #define XGI300SetupRect(w,h) \
 215                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 216                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(6), (h)<<16 | (w) );\
 217                 xgiCmdQueLen --;
 218
 219 #define XGI300SetupPATFG(color) \
 220                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 221                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(7), color);\
 222                 xgiCmdQueLen --;
 223
 224 #define XGI300SetupPATBG(color) \
 225                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 226                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(8), color);\
 227                 xgiCmdQueLen --;
 228
 229 #define XGI300SetupSRCFG(color) \
 230                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 231                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(9), color);\
 232                 xgiCmdQueLen --;
 233
 234 #define XGI300SetupSRCBG(color) \
 235                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 236                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(10), color);\
 237                 xgiCmdQueLen --;
 238
 239 /* 0x8224 src colorkey high */
 240 /* 0x8228 src colorkey low */
 241 /* 0x821c dest colorkey high */
 242 /* 0x8220 dest colorkey low */
 243 #define XGI300SetupSRCTrans(color) \
 244                 if (xgiCmdQueLen <= 1)  XGI300Idle;\
 245                 MMIO_OUT32(xgi_video_info.mmio_vbase, 0x8224, color);\
 246                 MMIO_OUT32(xgi_video_info.mmio_vbase, 0x8228, color);\
 247                 xgiCmdQueLen -= 2;
 248
 249 #define XGI300SetupDSTTrans(color) \
 250                 if (xgiCmdQueLen <= 1)  XGI300Idle;\
 251                 MMIO_OUT32(xgi_video_info.mmio_vbase, 0x821C, color); \
 252                 MMIO_OUT32(xgi_video_info.mmio_vbase, 0x8220, color); \
 253                 xgiCmdQueLen -= 2;
 254
 255 #define XGI300SetupMONOPAT(p0,p1) \
 256                 if (xgiCmdQueLen <= 1)  XGI300Idle;\
 257                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(11), p0);\
 258                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(12), p1);\
 259                 xgiCmdQueLen -= 2;
 260
 261 #define XGI300SetupClipLT(left,top) \
 262                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 263                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
 264                 xgiCmdQueLen--;
 265
 266 #define XGI300SetupClipRB(right,bottom) \
 267                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 268                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
 269                 xgiCmdQueLen--;
 270
 271 /* General */
 272 #define XGI300SetupROP(rop) \
 273                 xgi_video_info.CommandReg = (rop) << 8;
 274
 275 #define XGI300SetupCMDFlag(flags) \
 276                 xgi_video_info.CommandReg |= (flags);
 277
 278 #define XGI300DoCMD \
 279                 if (xgiCmdQueLen <= 1)  XGI300Idle;\
 280                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(15), xgi_video_info.CommandReg); \
 281                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(16), 0);\
 282                 xgiCmdQueLen -= 2;
 283
 284 /* Line */
 285 #define XGI300SetupX0Y0(x,y) \
 286                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 287                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(2), (y)<<16 | (x) );\
 288                 xgiCmdQueLen--;
 289
 290 #define XGI300SetupX1Y1(x,y) \
 291                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 292                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(3), (y)<<16 | (x) );\
 293                 xgiCmdQueLen--;
 294
 295 #define XGI300SetupLineCount(c) \
 296                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 297                 MMIO_OUT16(xgi_video_info.mmio_vbase, BR(6), c);\
 298                 xgiCmdQueLen--;
 299
 300 #define XGI300SetupStylePeriod(p) \
 301                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 302                 MMIO_OUT16(xgi_video_info.mmio_vbase, BR(6)+2, p);\
 303                 xgiCmdQueLen--;
 304
 305 #define XGI300SetupStyleLow(ls) \
 306                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 307                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(11), ls);\
 308                 xgiCmdQueLen--;
 309
 310 #define XGI300SetupStyleHigh(ls) \
 311                 if (xgiCmdQueLen <= 0)  XGI300Idle;\
 312                 MMIO_OUT32(xgi_video_info.mmio_vbase, BR(12), ls);\
 313                 xgiCmdQueLen--;
 314
 315
 316
 317 /* ----------- XGI 310/325 series --------------- */
 318
 319 /* Q_STATUS:
 320    bit 31 = 1: All engines idle and all queues empty
 321    bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
 322    bit 29 = 1: 2D engine is idle
 323    bit 28 = 1: 3D engine is idle
 324    bit 27 = 1: HW command queue empty
 325    bit 26 = 1: 2D queue empty
 326    bit 25 = 1: 3D queue empty
 327    bit 24 = 1: SW command queue empty
 328    bits 23:16: 2D counter 3
 329    bits 15:8:  2D counter 2
 330    bits 7:0:   2D counter 1
 331
 332    Where is the command queue length (current amount of commands the queue
 333    can accept) on the 310/325 series? (The current implementation is taken
 334    from 300 series and certainly wrong...)
 335 */
 336
 337 /* TW: FIXME: xgiCmdQueLen is... where....? */
 338 #define XGI310Idle \
 339   { \
 340   while( (MMIO_IN16(xgi_video_info.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 341   while( (MMIO_IN16(xgi_video_info.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
 342   xgiCmdQueLen=MMIO_IN16(xgi_video_info.mmio_vbase, Q_STATUS); \
 343   }
 344
 345 #define XGI310SetupSRCBase(base) \
 346       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 347       MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_ADDR, base);\
 348       xgiCmdQueLen--;
 349
 350 #define XGI310SetupSRCPitch(pitch) \
 351       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 352       MMIO_OUT16(xgi_video_info.mmio_vbase, SRC_PITCH, pitch);\
 353       xgiCmdQueLen--;
 354
 355 #define XGI310SetupSRCXY(x,y) \
 356       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 357       MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_Y, (x)<<16 | (y) );\
 358       xgiCmdQueLen--;
 359
 360 #define XGI310SetupDSTBase(base) \
 361       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 362       MMIO_OUT32(xgi_video_info.mmio_vbase, DST_ADDR, base);\
 363       xgiCmdQueLen--;
 364
 365 #define XGI310SetupDSTXY(x,y) \
 366       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 367       MMIO_OUT32(xgi_video_info.mmio_vbase, DST_Y, (x)<<16 | (y) );\
 368       xgiCmdQueLen--;
 369
 370 #define XGI310SetupDSTRect(x,y) \
 371       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 372       MMIO_OUT32(xgi_video_info.mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
 373       xgiCmdQueLen--;
 374
 375 #define XGI310SetupDSTColorDepth(bpp) \
 376       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 377       MMIO_OUT16(xgi_video_info.mmio_vbase, AGP_BASE, bpp);\
 378       xgiCmdQueLen--;
 379
 380 #define XGI310SetupRect(w,h) \
 381       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 382       MMIO_OUT32(xgi_video_info.mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
 383       xgiCmdQueLen--;
 384
 385 #define XGI310SetupPATFG(color) \
 386       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 387       MMIO_OUT32(xgi_video_info.mmio_vbase, PAT_FGCOLOR, color);\
 388       xgiCmdQueLen--;
 389
 390 #define XGI310SetupPATBG(color) \
 391       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 392       MMIO_OUT32(xgi_video_info.mmio_vbase, PAT_BGCOLOR, color);\
 393       xgiCmdQueLen--;
 394
 395 #define XGI310SetupSRCFG(color) \
 396       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 397       MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_FGCOLOR, color);\
 398       xgiCmdQueLen--;
 399
 400 #define XGI310SetupSRCBG(color) \
 401       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 402       MMIO_OUT32(xgi_video_info.mmio_vbase, SRC_BGCOLOR, color);\
 403       xgiCmdQueLen--;
 404
 405 #define XGI310SetupSRCTrans(color) \
 406       if (xgiCmdQueLen <= 1)  XGI310Idle;\
 407       MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
 408       MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_SRC_KEY_LOW, color);\
 409       xgiCmdQueLen -= 2;
 410
 411 #define XGI310SetupDSTTrans(color) \
 412       if (xgiCmdQueLen <= 1)  XGI310Idle;\
 413       MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_DST_KEY_HIGH, color); \
 414       MMIO_OUT32(xgi_video_info.mmio_vbase, TRANS_DST_KEY_LOW, color); \
 415       xgiCmdQueLen -= 2;
 416
 417 #define XGI310SetupMONOPAT(p0,p1) \
 418       if (xgiCmdQueLen <= 1)  XGI310Idle;\
 419       MMIO_OUT32(xgi_video_info.mmio_vbase, MONO_MASK, p0);\
 420       MMIO_OUT32(xgi_video_info.mmio_vbase, MONO_MASK+4, p1);\
 421       xgiCmdQueLen -= 2;
 422
 423 #define XGI310SetupClipLT(left,top) \
 424       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 425       MMIO_OUT32(xgi_video_info.mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
 426       xgiCmdQueLen--;
 427
 428 #define XGI310SetupClipRB(right,bottom) \
 429       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 430       MMIO_OUT32(xgi_video_info.mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
 431       xgiCmdQueLen--;
 432
 433 #define XGI310SetupROP(rop) \
 434       xgi_video_info.CommandReg = (rop) << 8;
 435
 436 #define XGI310SetupCMDFlag(flags) \
 437       xgi_video_info.CommandReg |= (flags);
 438
 439 #define XGI310DoCMD \
 440       if (xgiCmdQueLen <= 1)  XGI310Idle;\
 441       MMIO_OUT32(xgi_video_info.mmio_vbase, COMMAND_READY, xgi_video_info.CommandReg); \
 442       MMIO_OUT32(xgi_video_info.mmio_vbase, FIRE_TRIGGER, 0); \
 443       xgiCmdQueLen -= 2;
 444
 445 #define XGI310SetupX0Y0(x,y) \
 446       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 447       MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_X0, (y)<<16 | (x) );\
 448       xgiCmdQueLen--;
 449
 450 #define XGI310SetupX1Y1(x,y) \
 451       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 452       MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_X1, (y)<<16 | (x) );\
 453       xgiCmdQueLen--;
 454
 455 #define XGI310SetupLineCount(c) \
 456       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 457       MMIO_OUT16(xgi_video_info.mmio_vbase, LINE_COUNT, c);\
 458       xgiCmdQueLen--;
 459
 460 #define XGI310SetupStylePeriod(p) \
 461       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 462       MMIO_OUT16(xgi_video_info.mmio_vbase, LINE_STYLE_PERIOD, p);\
 463       xgiCmdQueLen--;
 464
 465 #define XGI310SetupStyleLow(ls) \
 466       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 467       MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_STYLE_0, ls);\
 468       xgiCmdQueLen--;
 469
 470 #define XGI310SetupStyleHigh(ls) \
 471       if (xgiCmdQueLen <= 0)  XGI310Idle;\
 472       MMIO_OUT32(xgi_video_info.mmio_vbase, LINE_STYLE_1, ls);\
 473       xgiCmdQueLen--;
 474
 475 int  XGIfb_initaccel(void);
 476 void XGIfb_syncaccel(void);
 477 int fbcon_XGI_sync(struct fb_info *info);
 478
 479 extern struct video_info xgi_video_info;
 480
 481 #endif