1 /* $NetBSD: cgsixreg.h,v 1.10 2013/05/28 15:25:37 macallan Exp $ */ 2 3 /* 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)cgsixreg.h 8.4 (Berkeley) 1/21/94 41 */ 42 43 /* 44 * CG6 display registers. (Note, I got tired of writing `cgsix' about 45 * halfway through and changed everything to cg6, but I probably missed 46 * some. Unfortunately, the way config works, we need to spell out `six' 47 * in some places anyway.) 48 * 49 * The cg6 is a complicated beastie. We have been unable to extract any 50 * documentation and most of the following are guesses based on a limited 51 * amount of reverse engineering. 52 * 53 * A cg6 is composed of numerous groups of control registers, all with TLAs: 54 * FBC - frame buffer control? 55 * FHC - fbc hardware configuration / control? register (32 bits) 56 * DHC - ??? 57 * TEC - transform engine control? 58 * THC - TEC Hardware Configuration 59 * ROM - a 64Kbyte ROM with who knows what in it. 60 * colormap - see below 61 * frame buffer memory (video RAM) 62 * possible other stuff 63 * 64 * Like the cg3, the cg6 uses a Brooktree Video DAC (see btreg.h). 65 * 66 * Various revisions of the cgsix have various hardware bugs. So far, 67 * we have only seen rev 1 & 2. 68 */ 69 70 /* Control register banks offsets */ 71 #define CGSIX_ROM_OFFSET 0x000000 72 #define CGSIX_BT_OFFSET 0x200000 73 #define CGSIX_DHC_OFFSET 0x240000 74 #define CGSIX_ALT_OFFSET 0x280000 75 #define CGSIX_FHC_OFFSET 0x300000 76 #define CGSIX_THC_OFFSET 0x301000 77 #define CGSIX_FBC_OFFSET 0x700000 78 #define CGSIX_TEC_OFFSET 0x701000 79 #define CGSIX_RAM_OFFSET 0x800000 80 81 /* bits in FHC register */ 82 #define FHC_FBID_MASK 0xff000000 /* bits 24..31 are frame buffer ID */ 83 #define FHC_FBID_SHIFT 24 84 #define FHC_REV_MASK 0x00f00000 /* bits 20..23 are revision */ 85 #define FHC_REV_SHIFT 20 86 #define FHC_FROP_DISABLE 0x00080000 /* disable fast rasterops */ 87 #define FHC_ROW_DISABLE 0x00040000 /* disable row cache */ 88 #define FHC_SRC_DISABLE 0x00020000 /* disable source cache */ 89 #define FHC_DST_DISABLE 0x00010000 /* disable destination cache */ 90 #define FHC_RESET 0x00008000 /* reset FBC */ 91 #define FHC_XXX0 0x00004000 /* unused */ 92 #define FHC_LEBO 0x00002000 /* set little endian byte order */ 93 #define FHC_RES_MASK 0x00001800 /* bits 11&12 are resolution */ 94 #define FHC_RES_1024 0x00000000 /* res = 1024x768 */ 95 #define FHC_RES_1152 0x00000800 /* res = 1152x900 */ 96 #define FHC_RES_1280 0x00001000 /* res = 1280x1024 */ 97 #define FHC_RES_1600 0x00001800 /* res = 1600x1200 */ 98 #define FHC_CPU_MASK 0x00000600 /* bits 9&10 are cpu type */ 99 #define FHC_CPU_SPARC 0x00000000 /* cpu = sparc */ 100 #define FHC_CPU_68020 0x00000200 /* cpu = 68020 */ 101 #define FHC_CPU_386 0x00000400 /* cpu = 80386 */ 102 #define FHC_CPU_XXX 0x00000600 /* unused */ 103 #define FHC_TEST 0x00000100 /* modify TESTX and TESTY */ 104 #define FHC_TESTX_MASK 0x000000f0 /* bits 4..7 are test window X */ 105 #define FHC_TESTX_SHIFT 4 106 #define FHC_TESTY_MASK 0x0000000f /* bits 0..3 are test window Y */ 107 #define FHC_TESTY_SHIFT 0 108 109 /* 110 * The layout of the THC. 111 */ 112 struct cg6_thc { 113 u_int32_t thc_xxx0[512]; /* ??? */ 114 u_int32_t thc_hsync1; /* horizontal sync timing */ 115 u_int32_t thc_hsync2; /* more hsync timing */ 116 u_int32_t thc_hsync3; /* yet more hsync timing */ 117 u_int32_t thc_vsync1; /* vertical sync timing */ 118 u_int32_t thc_vsync2; /* only two of these */ 119 u_int32_t thc_refresh; /* refresh counter */ 120 u_int32_t thc_misc; /* miscellaneous control & status */ 121 u_int32_t thc_xxx1[56]; /* ??? */ 122 u_int32_t thc_cursxy; /* cursor x,y position (16 bits each) */ 123 u_int32_t thc_cursmask[32];/* cursor mask bits */ 124 u_int32_t thc_cursbits[32];/* what to show where mask enabled */ 125 }; 126 127 /* bits in thc_misc */ 128 #define THC_MISC_XXX0 0xfff00000 /* unused */ 129 #define THC_MISC_REVMASK 0x000f0000 /* cg6 revision? */ 130 #define THC_MISC_REVSHIFT 16 131 #define THC_MISC_XXX1 0x0000e000 /* unused */ 132 #define THC_MISC_RESET 0x00001000 /* ??? */ 133 #define THC_MISC_XXX2 0x00000800 /* unused */ 134 #define THC_MISC_VIDEN 0x00000400 /* video enable */ 135 #define THC_MISC_SYNC 0x00000200 /* sync status */ 136 #define THC_MISC_VSYNC 0x00000100 /* vsync status */ 137 #define THC_MISC_SYNCEN 0x00000080 /* sync enable */ 138 #define THC_MISC_CURSRES 0x00000040 /* cursor resolution */ 139 #define THC_MISC_INTEN 0x00000020 /* v.retrace intr enable */ 140 #define THC_MISC_INTR 0x00000010 /* intr pending / ack bit */ 141 #define THC_MISC_XXX 0x0000000f /* ??? */ 142 143 /* cursor x / y position value for `off' */ 144 #define THC_CURSOFF (65536-32) /* i.e., USHRT_MAX+1-32 */ 145 146 /* 147 * Partial description of TEC (needed to get around FHC rev 1 bugs). 148 */ 149 struct cg6_tec_xxx { 150 u_int32_t tec_mv; /* matrix stuff */ 151 u_int32_t tec_clip; /* clipping stuff */ 152 u_int32_t tec_vdc; /* ??? */ 153 }; 154 155 /* 156 * Partial description of FBC 157 * 158 * Most of this we don't care about; here are only the portions 159 * we need, most notably the blitter. Comments are merely my 160 * best guesses as to register functions, based largely on the 161 * X11R6.4 sunGX code. Some of these are here only so we can 162 * stuff canned values in them (eg, offx). 163 */ 164 struct cg6_fbc { 165 u_int32_t fbc_config; /* r/o CONFIG register */ 166 volatile u_int32_t fbc_mode; /* mode setting */ 167 u_int32_t fbc_clip; /* TEC clip check */ 168 u_int32_t fbc_pad2[1]; 169 u_int32_t fbc_s; /* global status */ 170 u_int32_t fbc_draw; /* drawing pipeline status */ 171 u_int32_t fbc_blit; /* blitter status */ 172 u_int32_t fbc_font; /* pixel transfer register */ 173 u_int32_t fbc_pad3[24]; 174 u_int32_t fbc_x0; /* blitter, src llx */ 175 u_int32_t fbc_y0; /* blitter, src lly */ 176 u_int32_t fbc_pad4[2]; 177 u_int32_t fbc_x1; /* blitter, src urx */ 178 u_int32_t fbc_y1; /* blitter, src ury */ 179 u_int32_t fbc_pad5[2]; 180 u_int32_t fbc_x2; /* blitter, dst llx */ 181 u_int32_t fbc_y2; /* blitter, dst lly */ 182 u_int32_t fbc_pad6[2]; 183 u_int32_t fbc_x3; /* blitter, dst urx */ 184 u_int32_t fbc_y3; /* blitter, dst ury */ 185 u_int32_t fbc_pad7[2]; 186 u_int32_t fbc_offx; /* x offset for drawing */ 187 u_int32_t fbc_offy; /* y offset for drawing */ 188 u_int32_t fbc_pad8[2]; 189 u_int32_t fbc_incx; /* x offset for drawing */ 190 u_int32_t fbc_incy; /* y offset for drawing */ 191 u_int32_t fbc_pad81[2]; 192 u_int32_t fbc_clipminx; /* clip rectangle llx */ 193 u_int32_t fbc_clipminy; /* clip rectangle lly */ 194 u_int32_t fbc_pad9[2]; 195 u_int32_t fbc_clipmaxx; /* clip rectangle urx */ 196 u_int32_t fbc_clipmaxy; /* clip rectangle ury */ 197 u_int32_t fbc_pad10[2]; 198 u_int32_t fbc_fg; /* fg value for rop */ 199 u_int32_t fbc_bg; 200 u_int32_t fbc_alu; /* operation to be performed */ 201 u_int32_t fbc_pad12[509]; 202 u_int32_t fbc_arectx; /* rectangle drawing, x coord */ 203 u_int32_t fbc_arecty; /* rectangle drawing, y coord */ 204 /* actually much more, but nothing more we need */ 205 }; 206 207 /* FBC mode definitions (from XFree86) */ 208 #define CG6_FBC_BLIT_IGNORE 0x00000000 209 #define CG6_FBC_BLIT_NOSRC 0x00100000 210 #define CG6_FBC_BLIT_SRC 0x00200000 211 #define CG6_FBC_BLIT_ILLEGAL 0x00300000 212 #define CG6_FBC_BLIT_MASK 0x00300000 213 214 #define CG6_FBC_VBLANK 0x00080000 215 216 #define CG6_FBC_MODE_IGNORE 0x00000000 217 #define CG6_FBC_MODE_COLOR8 0x00020000 218 #define CG6_FBC_MODE_COLOR1 0x00040000 219 #define CG6_FBC_MODE_HRMONO 0x00060000 220 #define CG6_FBC_MODE_MASK 0x00060000 221 222 #define CG6_FBC_DRAW_IGNORE 0x00000000 223 #define CG6_FBC_DRAW_RENDER 0x00008000 224 #define CG6_FBC_DRAW_PICK 0x00010000 225 #define CG6_FBC_DRAW_ILLEGAL 0x00018000 226 #define CG6_FBC_DRAW_MASK 0x00018000 227 228 #define CG6_FBC_BWRITE0_IGNORE 0x00000000 229 #define CG6_FBC_BWRITE0_ENABLE 0x00002000 230 #define CG6_FBC_BWRITE0_DISABLE 0x00004000 231 #define CG6_FBC_BWRITE0_ILLEGAL 0x00006000 232 #define CG6_FBC_BWRITE0_MASK 0x00006000 233 234 #define CG6_FBC_BWRITE1_IGNORE 0x00000000 235 #define CG6_FBC_BWRITE1_ENABLE 0x00000800 236 #define CG6_FBC_BWRITE1_DISABLE 0x00001000 237 #define CG6_FBC_BWRITE1_ILLEGAL 0x00001800 238 #define CG6_FBC_BWRITE1_MASK 0x00001800 239 240 #define CG6_FBC_BREAD_IGNORE 0x00000000 241 #define CG6_FBC_BREAD_0 0x00000200 242 #define CG6_FBC_BREAD_1 0x00000400 243 #define CG6_FBC_BREAD_ILLEGAL 0x00000600 244 #define CG6_FBC_BREAD_MASK 0x00000600 245 246 #define CG6_FBC_BDISP_IGNORE 0x00000000 247 #define CG6_FBC_BDISP_0 0x00000080 248 #define CG6_FBC_BDISP_1 0x00000100 249 #define CG6_FBC_BDISP_ILLEGAL 0x00000180 250 #define CG6_FBC_BDISP_MASK 0x00000180 251 252 #define CG6_FBC_INDEX_MOD 0x00000040 253 #define CG6_FBC_INDEX_MASK 0x00000030 254 255 /* rasterops */ 256 #define GX_ROP_CLEAR 0x0 257 #define GX_ROP_INVERT 0x1 258 #define GX_ROP_NOOP 0x2 259 #define GX_ROP_SET 0x3 260 261 #define GX_ROP_00_0(rop) ((rop) << 0) 262 #define GX_ROP_00_1(rop) ((rop) << 2) 263 #define GX_ROP_01_0(rop) ((rop) << 4) 264 #define GX_ROP_01_1(rop) ((rop) << 6) 265 #define GX_ROP_10_0(rop) ((rop) << 8) 266 #define GX_ROP_10_1(rop) ((rop) << 10) 267 #define GX_ROP_11_0(rop) ((rop) << 12) 268 #define GX_ROP_11_1(rop) ((rop) << 14) 269 #define GX_PLOT_PLOT 0x00000000 270 #define GX_PLOT_UNPLOT 0x00020000 271 #define GX_RAST_BOOL 0x00000000 272 #define GX_RAST_LINEAR 0x00040000 273 #define GX_ATTR_UNSUPP 0x00400000 274 #define GX_ATTR_SUPP 0x00800000 275 #define GX_POLYG_OVERLAP 0x01000000 276 #define GX_POLYG_NONOVERLAP 0x02000000 277 #define GX_PATTERN_ZEROS 0x04000000 278 #define GX_PATTERN_ONES 0x08000000 279 #define GX_PATTERN_MASK 0x0c000000 280 #define GX_PIXEL_ZEROS 0x10000000 281 #define GX_PIXEL_ONES 0x20000000 282 #define GX_PIXEL_MASK 0x30000000 283 #define GX_PLANE_ZEROS 0x40000000 284 #define GX_PLANE_ONES 0x80000000 285 #define GX_PLANE_MASK 0xc0000000 286 /* rops for bit blit / copy area 287 with: 288 Plane Mask - use plane mask reg. 289 Pixel Mask - use all ones. 290 Patt Mask - use all ones. 291 */ 292 293 #define POLY_O GX_POLYG_OVERLAP 294 #define POLY_N GX_POLYG_NONOVERLAP 295 296 #define ROP_STANDARD (GX_PLANE_MASK |\ 297 GX_PIXEL_ONES |\ 298 GX_ATTR_SUPP |\ 299 GX_RAST_BOOL |\ 300 GX_PLOT_PLOT) 301 302 /* fg = don't care bg = don't care */ 303 304 #define ROP_BLIT(O,I) (ROP_STANDARD | \ 305 GX_PATTERN_ONES |\ 306 GX_ROP_11_1(I) |\ 307 GX_ROP_11_0(O) |\ 308 GX_ROP_10_1(I) |\ 309 GX_ROP_10_0(O) |\ 310 GX_ROP_01_1(I) |\ 311 GX_ROP_01_0(O) |\ 312 GX_ROP_00_1(I) |\ 313 GX_ROP_00_0(O)) 314 315 /* fg = fgPixel bg = don't care */ 316 317 #define ROP_FILL(O,I) (ROP_STANDARD | \ 318 GX_PATTERN_ONES |\ 319 GX_ROP_11_1(I) |\ 320 GX_ROP_11_0(I) |\ 321 GX_ROP_10_1(I) |\ 322 GX_ROP_10_0(I) | \ 323 GX_ROP_01_1(O) |\ 324 GX_ROP_01_0(O) |\ 325 GX_ROP_00_1(O) |\ 326 GX_ROP_00_0(O)) 327 328 /* fg = fgPixel bg = don't care */ 329 330 #define ROP_STIP(O,I) (ROP_STANDARD |\ 331 GX_ROP_11_1(I) |\ 332 GX_ROP_11_0(GX_ROP_NOOP) |\ 333 GX_ROP_10_1(I) |\ 334 GX_ROP_10_0(GX_ROP_NOOP) | \ 335 GX_ROP_01_1(O) |\ 336 GX_ROP_01_0(GX_ROP_NOOP) |\ 337 GX_ROP_00_1(O) |\ 338 GX_ROP_00_0(GX_ROP_NOOP)) 339 340 /* fg = fgPixel bg = bgPixel */ 341 342 #define ROP_OSTP(O,I) (ROP_STANDARD |\ 343 GX_ROP_11_1(I) |\ 344 GX_ROP_11_0(I) |\ 345 GX_ROP_10_1(I) |\ 346 GX_ROP_10_0(O) |\ 347 GX_ROP_01_1(O) |\ 348 GX_ROP_01_0(I) |\ 349 GX_ROP_00_1(O) |\ 350 GX_ROP_00_0(O)) 351 352 #define GX_ROP_USE_PIXELMASK 0x30000000 353 354 #define GX_BLT_INPROGRESS 0x20000000 355 356 /* status register(s) */ 357 #define GX_EXCEPTION 0x80000000 358 #define GX_TEC_EXCEPTION 0x40000000 359 #define GX_FULL 0x20000000 360 #define GX_INPROGRESS 0x10000000 361 #define GX_UNSUPPORTED_ATTR 0x02000000 362 #define GX_HRMONO 0x01000000 363 #define GX_OVERFLOW 0x00200000 364 #define GX_PICK 0x00100000 365 #define GX_TEC_HIDDEN 0x00040000 366 #define GX_TEC_INTERSECT 0x00020000 367 #define GX_TEC_VISIBLE 0x00010000 368 #define GX_BLIT_HARDWARE 0x00008000 /* hardware can blit this */ 369 #define GX_BLIT_SOFTWARE 0x00004000 /* software must blit this */ 370 #define GX_BLIT_SRC_HIDDEN 0x00002000 371 #define GX_BLIT_SRC_INTERSECT 0x00001000 372 #define GX_BLIT_SRC_VISIBLE 0x00000800 373 #define GX_BLIT_DST_HIDDEN 0x00000400 374 #define GX_BLIT_DST_INTERSECT 0x00000200 375 #define GX_BLIT_DST_VISIBLE 0x00000100 376 #define GX_DRAW_HARDWARE 0x00000010 /* hardware can draw this */ 377 #define GX_DRAW_SOFTAWRE 0x00000008 /* software must draw this */ 378 #define GX_DRAW_HIDDEN 0x00000004 379 #define GX_DRAW_INTERSECT 0x00000002 380 #define GX_DRAW_VISIBLE 0x00000001 381 382 /* MISC register */ 383 #define GX_INDEX(n) ((n) << 4) 384 #define GX_INDEX_ALL 0x00000030 385 #define GX_INDEX_MOD 0x00000040 386 #define GX_BDISP_0 0x00000080 387 #define GX_BDISP_1 0x00000100 388 #define GX_BDISP_ALL 0x00000180 389 #define GX_BREAD_0 0x00000200 390 #define GX_BREAD_1 0x00000400 391 #define GX_BREAD_ALL 0x00000600 392 #define GX_BWRITE1_ENABLE 0x00000800 393 #define GX_BWRITE1_DISABLE 0x00001000 394 #define GX_BWRITE1_ALL 0x00001800 395 #define GX_BWRITE0_ENABLE 0x00002000 396 #define GX_BWRITE0_DISABLE 0x00004000 397 #define GX_BWRITE0_ALL 0x00006000 398 #define GX_DRAW_RENDER 0x00008000 399 #define GX_DRAW_PICK 0x00010000 400 #define GX_DRAW_ALL 0x00018000 401 #define GX_MODE_COLOR8 0x00020000 402 #define GX_MODE_COLOR1 0x00040000 403 #define GX_MODE_HRMONO 0x00060000 404 #define GX_MODE_ALL 0x00060000 405 #define GX_VBLANK 0x00080000 406 #define GX_BLIT_NOSRC 0x00100000 407 #define GX_BLIT_SRC 0x00200000 408 #define GX_BLIT_ALL 0x00300000 409 410 #if _CG6_LAYOUT_NOT_USED_ANYMORE 411 /* 412 * This structure exists only to compute the layout of the CG6 413 * hardware. Each of the individual substructures lives on a 414 * separate `page' (where a `page' is at least 4K), and many are 415 * very far apart. We avoid large offsets (which make for lousy 416 * code) by using pointers to the individual interesting pieces, 417 * and map them in independently (to avoid using up PTEs unnecessarily). 418 */ 419 struct cg6_layout { 420 /* ROM at 0 */ 421 union { 422 int un_id; /* ID = ?? */ 423 char un_rom[65536]; /* 64K rom */ 424 char un_pad[0x200000]; 425 } cg6_rom_un; 426 427 /* Brooktree DAC at 0x200000 */ 428 union { 429 struct bt_regs un_btregs; 430 char un_pad[0x040000]; 431 } cg6_bt_un; 432 433 /* DHC, whatever that is, at 0x240000 */ 434 union { 435 char un_pad[0x40000]; 436 } cg6_dhc_un; 437 438 /* ALT, whatever that is, at 0x280000 */ 439 union { 440 char un_pad[0x80000]; 441 } cg6_alt_un; 442 443 /* FHC register at 0x300000 */ 444 union { 445 int un_fhc; 446 char un_pad[0x1000]; 447 } cg6_fhc_un; 448 449 /* THC at 0x301000 */ 450 union { 451 struct cg6_thc un_thc; 452 char un_pad[0x400000 - 0x1000]; 453 } cg6_thc_un; 454 455 /* FBC at 0x700000 */ 456 union { 457 char un_pad[0x1000]; 458 } cg6_fbc_un; 459 460 /* TEC at 0x701000 */ 461 union { 462 char un_pad[0x100000 - 0x1000]; 463 struct cg6_tec_xxx un_tec; 464 } cg6_tec_un; 465 466 /* Video RAM at 0x800000 */ 467 char cg6_ram[1024 * 1024]; /* approx.? */ 468 }; 469 #endif 470
Indexes created Sun Sep 21 20:09:37 GMT 2025