1 /* $NetBSD: cgsix.c,v 1.5 2001/01/10 13:26:52 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This software was developed by the Computer Systems Engineering group 44 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 45 * contributed to Berkeley. 46 * 47 * All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the University of 50 * California, Lawrence Berkeley Laboratory. 51 * 52 * Redistribution and use in source and binary forms, with or without 53 * modification, are permitted provided that the following conditions 54 * are met: 55 * 1. Redistributions of source code must retain the above copyright 56 * notice, this list of conditions and the following disclaimer. 57 * 2. Redistributions in binary form must reproduce the above copyright 58 * notice, this list of conditions and the following disclaimer in the 59 * documentation and/or other materials provided with the distribution. 60 * 3. All advertising materials mentioning features or use of this software 61 * must display the following acknowledgement: 62 * This product includes software developed by the University of 63 * California, Berkeley and its contributors. 64 * 4. Neither the name of the University nor the names of its contributors 65 * may be used to endorse or promote products derived from this software 66 * without specific prior written permission. 67 * 68 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 69 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 70 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 71 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 72 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 73 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 74 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 75 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 76 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 77 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 78 * SUCH DAMAGE. 79 * 80 * @(#)cgsix.c 8.4 (Berkeley) 1/21/94 81 */ 82 83 /* 84 * color display (cgsix) driver. 85 * 86 * Does not handle interrupts, even though they can occur. 87 * 88 * XXX should defer colormap updates to vertical retrace interrupts 89 */ 90 91 #include <sys/param.h> 92 #include <sys/systm.h> 93 #include <sys/buf.h> 94 #include <sys/device.h> 95 #include <sys/ioctl.h> 96 #include <sys/malloc.h> 97 #include <sys/mman.h> 98 #include <sys/tty.h> 99 #include <sys/conf.h> 100 101 #ifdef DEBUG 102 #include <sys/proc.h> 103 #include <sys/syslog.h> 104 #endif 105 106 #include <uvm/uvm_extern.h> 107 108 #include <machine/bus.h> 109 110 #include <dev/sun/fbio.h> 111 #include <dev/sun/fbvar.h> 112 113 #include <dev/sun/btreg.h> 114 #include <dev/sun/btvar.h> 115 #include <dev/sun/cgsixreg.h> 116 #include <dev/sun/cgsixvar.h> 117 #include <dev/sun/pfourreg.h> 118 119 #ifdef RASTERCONSOLE 120 #include <dev/rasops/rasops.h> 121 #include <dev/wscons/wsconsio.h> 122 #endif 123 124 #include <machine/conf.h> 125 126 static void cg6_unblank(struct device *); 127 128 /* cdevsw prototypes */ 129 cdev_decl(cgsix); 130 131 extern struct cfdriver cgsix_cd; 132 133 /* frame buffer generic driver */ 134 static struct fbdriver cg6_fbdriver = { 135 cg6_unblank, cgsixopen, cgsixclose, cgsixioctl, cgsixpoll, cgsixmmap 136 }; 137 138 static void cg6_reset (struct cgsix_softc *); 139 static void cg6_loadcmap (struct cgsix_softc *, int, int); 140 static void cg6_loadomap (struct cgsix_softc *); 141 static void cg6_setcursor (struct cgsix_softc *);/* set position */ 142 static void cg6_loadcursor (struct cgsix_softc *);/* set shape */ 143 144 #ifdef RASTERCONSOLE 145 int cgsix_use_rasterconsole = 1; 146 147 /* 148 * cg6 accelerated console routines. 149 * 150 * Note that buried in this code in several places is the assumption 151 * that pixels are exactly one byte wide. Since this is cg6-specific 152 * code, this seems safe. This assumption resides in things like the 153 * use of ri_emuwidth without messing around with ri_pelbytes, or the 154 * assumption that ri_font->fontwidth is the right thing to multiply 155 * character-cell counts by to get byte counts. 156 */ 157 158 /* 159 * Magic values for blitter 160 */ 161 162 /* Values for the mode register */ 163 #define CG6_MODE ( \ 164 0x00200000 /* GX_BLIT_SRC */ \ 165 | 0x00020000 /* GX_MODE_COLOR8 */ \ 166 | 0x00008000 /* GX_DRAW_RENDER */ \ 167 | 0x00002000 /* GX_BWRITE0_ENABLE */ \ 168 | 0x00001000 /* GX_BWRITE1_DISABLE */ \ 169 | 0x00000200 /* GX_BREAD_0 */ \ 170 | 0x00000080 /* GX_BDISP_0 */ \ 171 ) 172 #define CG6_MODE_MASK ( \ 173 0x00300000 /* GX_BLIT_ALL */ \ 174 | 0x00060000 /* GX_MODE_ALL */ \ 175 | 0x00018000 /* GX_DRAW_ALL */ \ 176 | 0x00006000 /* GX_BWRITE0_ALL */ \ 177 | 0x00001800 /* GX_BWRITE1_ALL */ \ 178 | 0x00000600 /* GX_BREAD_ALL */ \ 179 | 0x00000180 /* GX_BDISP_ALL */ \ 180 ) 181 182 /* Value for the alu register for screen-to-screen copies */ 183 #define CG6_ALU_COPY ( \ 184 0x80000000 /* GX_PLANE_ONES (ignore planemask register) */ \ 185 | 0x20000000 /* GX_PIXEL_ONES (ignore pixelmask register) */ \ 186 | 0x00800000 /* GX_ATTR_SUPP (function unknown) */ \ 187 | 0x00000000 /* GX_RAST_BOOL (function unknown) */ \ 188 | 0x00000000 /* GX_PLOT_PLOT (function unknown) */ \ 189 | 0x08000000 /* GX_PATTERN_ONES (ignore pattern) */ \ 190 | 0x01000000 /* GX_POLYG_OVERLAP (unsure - handle overlap?) */ \ 191 | 0x0000cccc /* ALU = src */ \ 192 ) 193 194 /* Value for the alu register for region fills */ 195 #define CG6_ALU_FILL ( \ 196 0x80000000 /* GX_PLANE_ONES (ignore planemask register) */ \ 197 | 0x20000000 /* GX_PIXEL_ONES (ignore pixelmask register) */ \ 198 | 0x00800000 /* GX_ATTR_SUPP (function unknown) */ \ 199 | 0x00000000 /* GX_RAST_BOOL (function unknown) */ \ 200 | 0x00000000 /* GX_PLOT_PLOT (function unknown) */ \ 201 | 0x08000000 /* GX_PATTERN_ONES (ignore pattern) */ \ 202 | 0x01000000 /* GX_POLYG_OVERLAP (unsure - handle overlap?) */ \ 203 | 0x0000ff00 /* ALU = fg color */ \ 204 ) 205 206 /* Value for the alu register for toggling an area */ 207 #define CG6_ALU_FLIP ( \ 208 0x80000000 /* GX_PLANE_ONES (ignore planemask register) */ \ 209 | 0x20000000 /* GX_PIXEL_ONES (ignore pixelmask register) */ \ 210 | 0x00800000 /* GX_ATTR_SUPP (function unknown) */ \ 211 | 0x00000000 /* GX_RAST_BOOL (function unknown) */ \ 212 | 0x00000000 /* GX_PLOT_PLOT (function unknown) */ \ 213 | 0x08000000 /* GX_PATTERN_ONES (ignore pattern) */ \ 214 | 0x01000000 /* GX_POLYG_OVERLAP (unsure - handle overlap?) */ \ 215 | 0x00005555 /* ALU = ~dst */ \ 216 ) 217 218 /* 219 * Wait for a blit to finish. 220 * 0x8000000 bit: function unknown; 0x20000000 bit: GX_BLT_INPROGRESS 221 */ 222 #define CG6_BLIT_WAIT(fbc) do { \ 223 while (((fbc)->fbc_blit & 0xa0000000) == 0xa0000000) \ 224 /*EMPTY*/; \ 225 } while (0) 226 227 /* 228 * Wait for a drawing operation to finish, or at least get queued. 229 * 0x8000000 bit: function unknown; 0x20000000 bit: GX_FULL 230 */ 231 #define CG6_DRAW_WAIT(fbc) do { \ 232 while (((fbc)->fbc_draw & 0xa0000000) == 0xa0000000) \ 233 /*EMPTY*/; \ 234 } while (0) 235 236 /* 237 * Wait for the whole engine to go idle. This may not matter in our case; 238 * I'm not sure whether blits are actually queued or not. It more likely 239 * is intended for lines and such that do get queued. 240 * 0x10000000 bit: GX_INPROGRESS 241 */ 242 #define CG6_DRAIN(fbc) do { \ 243 while ((fbc)->fbc_s & 0x10000000) \ 244 /*EMPTY*/; \ 245 } while (0) 246 247 static void cg6_ras_init(struct cgsix_softc *); 248 static void cg6_ras_copyrows(void *, int, int, int); 249 static void cg6_ras_copycols(void *, int, int, int, int); 250 static void cg6_ras_erasecols(void *, int, int, int, long int); 251 static void cg6_ras_eraserows(void *, int, int, long int); 252 static void cg6_ras_do_cursor(struct rasops_info *); 253 254 static void 255 cg6_ras_init(struct cgsix_softc *sc) 256 { 257 volatile struct cg6_fbc *fbc = sc->sc_fbc; 258 259 CG6_DRAIN(fbc); 260 fbc->fbc_mode &= ~CG6_MODE_MASK; 261 fbc->fbc_mode |= CG6_MODE; 262 } 263 264 static void 265 cg6_ras_copyrows(void *cookie, int src, int dst, int n) 266 { 267 struct rasops_info *ri; 268 volatile struct cg6_fbc *fbc; 269 270 ri = cookie; 271 if (dst == src) 272 return; 273 if (src < 0) { 274 n += src; 275 src = 0; 276 } 277 if (src+n > ri->ri_rows) 278 n = ri->ri_rows - src; 279 if (dst < 0) { 280 n += dst; 281 dst = 0; 282 } 283 if (dst+n > ri->ri_rows) 284 n = ri->ri_rows - dst; 285 if (n <= 0) 286 return; 287 n *= ri->ri_font->fontheight; 288 src *= ri->ri_font->fontheight; 289 dst *= ri->ri_font->fontheight; 290 fbc = ((struct cgsix_softc *)ri->ri_hw)->sc_fbc; 291 fbc->fbc_clip = 0; 292 fbc->fbc_s = 0; 293 fbc->fbc_offx = 0; 294 fbc->fbc_offy = 0; 295 fbc->fbc_clipminx = 0; 296 fbc->fbc_clipminy = 0; 297 fbc->fbc_clipmaxx = ri->ri_width - 1; 298 fbc->fbc_clipmaxy = ri->ri_height - 1; 299 fbc->fbc_alu = CG6_ALU_COPY; 300 fbc->fbc_x0 = ri->ri_xorigin; 301 fbc->fbc_y0 = ri->ri_yorigin + src; 302 fbc->fbc_x1 = ri->ri_xorigin + ri->ri_emuwidth - 1; 303 fbc->fbc_y1 = ri->ri_yorigin + src + n - 1; 304 fbc->fbc_x2 = ri->ri_xorigin; 305 fbc->fbc_y2 = ri->ri_yorigin + dst; 306 fbc->fbc_x3 = ri->ri_xorigin + ri->ri_emuwidth - 1; 307 fbc->fbc_y3 = ri->ri_yorigin + dst + n - 1; 308 CG6_BLIT_WAIT(fbc); 309 CG6_DRAIN(fbc); 310 } 311 312 static void 313 cg6_ras_copycols(void *cookie, int row, int src, int dst, int n) 314 { 315 struct rasops_info *ri; 316 volatile struct cg6_fbc *fbc; 317 318 ri = cookie; 319 if (dst == src) 320 return; 321 if ((row < 0) || (row >= ri->ri_rows)) 322 return; 323 if (src < 0) { 324 n += src; 325 src = 0; 326 } 327 if (src+n > ri->ri_cols) 328 n = ri->ri_cols - src; 329 if (dst < 0) { 330 n += dst; 331 dst = 0; 332 } 333 if (dst+n > ri->ri_cols) 334 n = ri->ri_cols - dst; 335 if (n <= 0) 336 return; 337 n *= ri->ri_font->fontwidth; 338 src *= ri->ri_font->fontwidth; 339 dst *= ri->ri_font->fontwidth; 340 row *= ri->ri_font->fontheight; 341 fbc = ((struct cgsix_softc *)ri->ri_hw)->sc_fbc; 342 fbc->fbc_clip = 0; 343 fbc->fbc_s = 0; 344 fbc->fbc_offx = 0; 345 fbc->fbc_offy = 0; 346 fbc->fbc_clipminx = 0; 347 fbc->fbc_clipminy = 0; 348 fbc->fbc_clipmaxx = ri->ri_width - 1; 349 fbc->fbc_clipmaxy = ri->ri_height - 1; 350 fbc->fbc_alu = CG6_ALU_COPY; 351 fbc->fbc_x0 = ri->ri_xorigin + src; 352 fbc->fbc_y0 = ri->ri_yorigin + row; 353 fbc->fbc_x1 = ri->ri_xorigin + src + n - 1; 354 fbc->fbc_y1 = ri->ri_yorigin + row + ri->ri_font->fontheight - 1; 355 fbc->fbc_x2 = ri->ri_xorigin + dst; 356 fbc->fbc_y2 = ri->ri_yorigin + row; 357 fbc->fbc_x3 = ri->ri_xorigin + dst + n - 1; 358 fbc->fbc_y3 = ri->ri_yorigin + row + ri->ri_font->fontheight - 1; 359 CG6_BLIT_WAIT(fbc); 360 CG6_DRAIN(fbc); 361 } 362 363 static void 364 cg6_ras_erasecols(void *cookie, int row, int col, int n, long int attr) 365 { 366 struct rasops_info *ri; 367 volatile struct cg6_fbc *fbc; 368 369 ri = cookie; 370 if ((row < 0) || (row >= ri->ri_rows)) 371 return; 372 if (col < 0) { 373 n += col; 374 col = 0; 375 } 376 if (col+n > ri->ri_cols) 377 n = ri->ri_cols - col; 378 if (n <= 0) 379 return; 380 n *= ri->ri_font->fontwidth; 381 col *= ri->ri_font->fontwidth; 382 row *= ri->ri_font->fontheight; 383 fbc = ((struct cgsix_softc *)ri->ri_hw)->sc_fbc; 384 fbc->fbc_clip = 0; 385 fbc->fbc_s = 0; 386 fbc->fbc_offx = 0; 387 fbc->fbc_offy = 0; 388 fbc->fbc_clipminx = 0; 389 fbc->fbc_clipminy = 0; 390 fbc->fbc_clipmaxx = ri->ri_width - 1; 391 fbc->fbc_clipmaxy = ri->ri_height - 1; 392 fbc->fbc_alu = CG6_ALU_FILL; 393 fbc->fbc_fg = ri->ri_devcmap[(attr >> 16) & 0xf]; 394 fbc->fbc_arecty = ri->ri_yorigin + row; 395 fbc->fbc_arectx = ri->ri_xorigin + col; 396 fbc->fbc_arecty = ri->ri_yorigin + row + ri->ri_font->fontheight - 1; 397 fbc->fbc_arectx = ri->ri_xorigin + col + n - 1; 398 CG6_DRAW_WAIT(fbc); 399 CG6_DRAIN(fbc); 400 } 401 402 static void 403 cg6_ras_eraserows(void *cookie, int row, int n, long int attr) 404 { 405 struct rasops_info *ri; 406 volatile struct cg6_fbc *fbc; 407 408 ri = cookie; 409 if (row < 0) { 410 n += row; 411 row = 0; 412 } 413 if (row+n > ri->ri_rows) 414 n = ri->ri_rows - row; 415 if (n <= 0) 416 return; 417 fbc = ((struct cgsix_softc *)ri->ri_hw)->sc_fbc; 418 fbc->fbc_clip = 0; 419 fbc->fbc_s = 0; 420 fbc->fbc_offx = 0; 421 fbc->fbc_offy = 0; 422 fbc->fbc_clipminx = 0; 423 fbc->fbc_clipminy = 0; 424 fbc->fbc_clipmaxx = ri->ri_width - 1; 425 fbc->fbc_clipmaxy = ri->ri_height - 1; 426 fbc->fbc_alu = CG6_ALU_FILL; 427 fbc->fbc_fg = ri->ri_devcmap[(attr >> 16) & 0xf]; 428 if ((n == ri->ri_rows) && (ri->ri_flg & RI_FULLCLEAR)) { 429 fbc->fbc_arecty = 0; 430 fbc->fbc_arectx = 0; 431 fbc->fbc_arecty = ri->ri_height - 1; 432 fbc->fbc_arectx = ri->ri_width - 1; 433 } else { 434 row *= ri->ri_font->fontheight; 435 fbc->fbc_arecty = ri->ri_yorigin + row; 436 fbc->fbc_arectx = ri->ri_xorigin; 437 fbc->fbc_arecty = ri->ri_yorigin + row + (n * ri->ri_font->fontheight) - 1; 438 fbc->fbc_arectx = ri->ri_xorigin + ri->ri_emuwidth - 1; 439 } 440 CG6_DRAW_WAIT(fbc); 441 CG6_DRAIN(fbc); 442 } 443 444 /* 445 * Really want something more like fg^bg here, but that would be more 446 * or less impossible to migrate to colors. So we hope there's 447 * something not too inappropriate in the colormap...besides, it's what 448 * the non-accelerated code did. :-) 449 */ 450 static void 451 cg6_ras_do_cursor(struct rasops_info *ri) 452 { 453 volatile struct cg6_fbc *fbc; 454 int row; 455 int col; 456 457 row = ri->ri_crow * ri->ri_font->fontheight; 458 col = ri->ri_ccol * ri->ri_font->fontwidth; 459 fbc = ((struct cgsix_softc *)ri->ri_hw)->sc_fbc; 460 fbc->fbc_clip = 0; 461 fbc->fbc_s = 0; 462 fbc->fbc_offx = 0; 463 fbc->fbc_offy = 0; 464 fbc->fbc_clipminx = 0; 465 fbc->fbc_clipminy = 0; 466 fbc->fbc_clipmaxx = ri->ri_width - 1; 467 fbc->fbc_clipmaxy = ri->ri_height - 1; 468 fbc->fbc_alu = CG6_ALU_FLIP; 469 fbc->fbc_arecty = ri->ri_yorigin + row; 470 fbc->fbc_arectx = ri->ri_xorigin + col; 471 fbc->fbc_arecty = ri->ri_yorigin + row + ri->ri_font->fontheight - 1; 472 fbc->fbc_arectx = ri->ri_xorigin + col + ri->ri_font->fontwidth - 1; 473 CG6_DRAW_WAIT(fbc); 474 CG6_DRAIN(fbc); 475 } 476 #endif /* RASTERCONSOLE */ 477 478 void 479 cg6attach(sc, name, isconsole) 480 struct cgsix_softc *sc; 481 char *name; 482 int isconsole; 483 { 484 struct fbdevice *fb = &sc->sc_fb; 485 486 fb->fb_driver = &cg6_fbdriver; 487 488 /* Don't have to map the pfour register on the cgsix. */ 489 fb->fb_pfour = NULL; 490 491 fb->fb_type.fb_cmsize = 256; 492 fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes; 493 printf(": %s, %d x %d", name, 494 fb->fb_type.fb_width, fb->fb_type.fb_height); 495 496 sc->sc_fhcrev = (*sc->sc_fhc >> FHC_REV_SHIFT) & 497 (FHC_REV_MASK >> FHC_REV_SHIFT); 498 499 printf(", rev %d", sc->sc_fhcrev); 500 501 /* reset cursor & frame buffer controls */ 502 cg6_reset(sc); 503 504 /* enable video */ 505 sc->sc_thc->thc_misc |= THC_MISC_VIDEN; 506 507 if (isconsole) { 508 printf(" (console)"); 509 #ifdef RASTERCONSOLE 510 if (cgsix_use_rasterconsole) { 511 fbrcons_init(&sc->sc_fb); 512 sc->sc_fb.fb_rinfo.ri_hw = sc; 513 sc->sc_fb.fb_rinfo.ri_ops.copyrows = cg6_ras_copyrows; 514 sc->sc_fb.fb_rinfo.ri_ops.copycols = cg6_ras_copycols; 515 sc->sc_fb.fb_rinfo.ri_ops.erasecols = cg6_ras_erasecols; 516 sc->sc_fb.fb_rinfo.ri_ops.eraserows = cg6_ras_eraserows; 517 sc->sc_fb.fb_rinfo.ri_do_cursor = cg6_ras_do_cursor; 518 cg6_ras_init(sc); 519 } 520 #endif 521 } 522 523 printf("\n"); 524 fb_attach(&sc->sc_fb, isconsole); 525 } 526 527 528 int 529 cgsixopen(dev, flags, mode, p) 530 dev_t dev; 531 int flags, mode; 532 struct proc *p; 533 { 534 int unit = minor(dev); 535 536 if (unit >= cgsix_cd.cd_ndevs || cgsix_cd.cd_devs[unit] == NULL) 537 return (ENXIO); 538 return (0); 539 } 540 541 int 542 cgsixclose(dev, flags, mode, p) 543 dev_t dev; 544 int flags, mode; 545 struct proc *p; 546 { 547 struct cgsix_softc *sc = cgsix_cd.cd_devs[minor(dev)]; 548 549 cg6_reset(sc); 550 551 /* (re-)initialize the default color map */ 552 bt_initcmap(&sc->sc_cmap, 256); 553 cg6_loadcmap(sc, 0, 256); 554 555 return (0); 556 } 557 558 int 559 cgsixioctl(dev, cmd, data, flags, p) 560 dev_t dev; 561 u_long cmd; 562 caddr_t data; 563 int flags; 564 struct proc *p; 565 { 566 struct cgsix_softc *sc = cgsix_cd.cd_devs[minor(dev)]; 567 u_int count; 568 int v, error; 569 union cursor_cmap tcm; 570 571 switch (cmd) { 572 573 case FBIOGTYPE: 574 *(struct fbtype *)data = sc->sc_fb.fb_type; 575 break; 576 577 case FBIOGATTR: 578 #define fba ((struct fbgattr *)data) 579 fba->real_type = sc->sc_fb.fb_type.fb_type; 580 fba->owner = 0; /* XXX ??? */ 581 fba->fbtype = sc->sc_fb.fb_type; 582 fba->sattr.flags = 0; 583 fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type; 584 fba->sattr.dev_specific[0] = -1; 585 fba->emu_types[0] = sc->sc_fb.fb_type.fb_type; 586 fba->emu_types[1] = -1; 587 #undef fba 588 break; 589 590 case FBIOGETCMAP: 591 #define p ((struct fbcmap *)data) 592 return (bt_getcmap(p, &sc->sc_cmap, 256, 1)); 593 594 case FBIOPUTCMAP: 595 /* copy to software map */ 596 error = bt_putcmap(p, &sc->sc_cmap, 256, 1); 597 if (error) 598 return (error); 599 /* now blast them into the chip */ 600 /* XXX should use retrace interrupt */ 601 cg6_loadcmap(sc, p->index, p->count); 602 #undef p 603 break; 604 605 case FBIOGVIDEO: 606 *(int *)data = sc->sc_blanked; 607 break; 608 609 case FBIOSVIDEO: 610 if (*(int *)data) 611 cg6_unblank(&sc->sc_dev); 612 else if (!sc->sc_blanked) { 613 sc->sc_blanked = 1; 614 sc->sc_thc->thc_misc &= ~THC_MISC_VIDEN; 615 } 616 break; 617 618 /* these are for both FBIOSCURSOR and FBIOGCURSOR */ 619 #define p ((struct fbcursor *)data) 620 #define cc (&sc->sc_cursor) 621 622 case FBIOGCURSOR: 623 /* do not quite want everything here... */ 624 p->set = FB_CUR_SETALL; /* close enough, anyway */ 625 p->enable = cc->cc_enable; 626 p->pos = cc->cc_pos; 627 p->hot = cc->cc_hot; 628 p->size = cc->cc_size; 629 630 /* begin ugh ... can we lose some of this crap?? */ 631 if (p->image != NULL) { 632 count = cc->cc_size.y * 32 / NBBY; 633 error = copyout((caddr_t)cc->cc_bits[1], 634 (caddr_t)p->image, count); 635 if (error) 636 return (error); 637 error = copyout((caddr_t)cc->cc_bits[0], 638 (caddr_t)p->mask, count); 639 if (error) 640 return (error); 641 } 642 if (p->cmap.red != NULL) { 643 error = bt_getcmap(&p->cmap, 644 (union bt_cmap *)&cc->cc_color, 2, 1); 645 if (error) 646 return (error); 647 } else { 648 p->cmap.index = 0; 649 p->cmap.count = 2; 650 } 651 /* end ugh */ 652 break; 653 654 case FBIOSCURSOR: 655 /* 656 * For setcmap and setshape, verify parameters, so that 657 * we do not get halfway through an update and then crap 658 * out with the software state screwed up. 659 */ 660 v = p->set; 661 if (v & FB_CUR_SETCMAP) { 662 /* 663 * This use of a temporary copy of the cursor 664 * colormap is not terribly efficient, but these 665 * copies are small (8 bytes)... 666 */ 667 tcm = cc->cc_color; 668 error = bt_putcmap(&p->cmap, (union bt_cmap *)&tcm, 2, 1); 669 if (error) 670 return (error); 671 } 672 if (v & FB_CUR_SETSHAPE) { 673 if ((u_int)p->size.x > 32 || (u_int)p->size.y > 32) 674 return (EINVAL); 675 count = p->size.y * 32 / NBBY; 676 if (!uvm_useracc(p->image, count, B_READ) || 677 !uvm_useracc(p->mask, count, B_READ)) 678 return (EFAULT); 679 } 680 681 /* parameters are OK; do it */ 682 if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) { 683 if (v & FB_CUR_SETCUR) 684 cc->cc_enable = p->enable; 685 if (v & FB_CUR_SETPOS) 686 cc->cc_pos = p->pos; 687 if (v & FB_CUR_SETHOT) 688 cc->cc_hot = p->hot; 689 cg6_setcursor(sc); 690 } 691 if (v & FB_CUR_SETCMAP) { 692 cc->cc_color = tcm; 693 cg6_loadomap(sc); /* XXX defer to vertical retrace */ 694 } 695 if (v & FB_CUR_SETSHAPE) { 696 cc->cc_size = p->size; 697 count = p->size.y * 32 / NBBY; 698 bzero((caddr_t)cc->cc_bits, sizeof cc->cc_bits); 699 copyin(p->mask, (caddr_t)cc->cc_bits[0], count); 700 copyin(p->image, (caddr_t)cc->cc_bits[1], count); 701 cg6_loadcursor(sc); 702 } 703 break; 704 705 #undef p 706 #undef cc 707 708 case FBIOGCURPOS: 709 *(struct fbcurpos *)data = sc->sc_cursor.cc_pos; 710 break; 711 712 case FBIOSCURPOS: 713 sc->sc_cursor.cc_pos = *(struct fbcurpos *)data; 714 cg6_setcursor(sc); 715 break; 716 717 case FBIOGCURMAX: 718 /* max cursor size is 32x32 */ 719 ((struct fbcurpos *)data)->x = 32; 720 ((struct fbcurpos *)data)->y = 32; 721 break; 722 723 default: 724 #ifdef DEBUG 725 log(LOG_NOTICE, "cgsixioctl(0x%lx) (%s[%d])\n", cmd, 726 p->p_comm, p->p_pid); 727 #endif 728 return (ENOTTY); 729 } 730 return (0); 731 } 732 733 int 734 cgsixpoll(dev, events, p) 735 dev_t dev; 736 int events; 737 struct proc *p; 738 { 739 740 return (seltrue(dev, events, p)); 741 } 742 743 /* 744 * Clean up hardware state (e.g., after bootup or after X crashes). 745 */ 746 static void 747 cg6_reset(sc) 748 struct cgsix_softc *sc; 749 { 750 volatile struct cg6_tec_xxx *tec; 751 int fhc; 752 volatile struct bt_regs *bt; 753 754 /* hide the cursor, just in case */ 755 sc->sc_thc->thc_cursxy = (THC_CURSOFF << 16) | THC_CURSOFF; 756 757 /* turn off frobs in transform engine (makes X11 work) */ 758 tec = sc->sc_tec; 759 tec->tec_mv = 0; 760 tec->tec_clip = 0; 761 tec->tec_vdc = 0; 762 763 /* take care of hardware bugs in old revisions */ 764 if (sc->sc_fhcrev < 5) { 765 /* 766 * Keep current resolution; set cpu to 68020, set test 767 * window (size 1Kx1K), and for rev 1, disable dest cache. 768 */ 769 fhc = (*sc->sc_fhc & FHC_RES_MASK) | FHC_CPU_68020 | 770 FHC_TEST | 771 (11 << FHC_TESTX_SHIFT) | (11 << FHC_TESTY_SHIFT); 772 if (sc->sc_fhcrev < 2) 773 fhc |= FHC_DST_DISABLE; 774 *sc->sc_fhc = fhc; 775 } 776 777 /* Enable cursor in Brooktree DAC. */ 778 bt = sc->sc_bt; 779 bt->bt_addr = 0x06 << 24; 780 bt->bt_ctrl |= 0x03 << 24; 781 } 782 783 static void 784 cg6_setcursor(sc) 785 struct cgsix_softc *sc; 786 { 787 788 /* we need to subtract the hot-spot value here */ 789 #define COORD(f) (sc->sc_cursor.cc_pos.f - sc->sc_cursor.cc_hot.f) 790 sc->sc_thc->thc_cursxy = sc->sc_cursor.cc_enable ? 791 ((COORD(x) << 16) | (COORD(y) & 0xffff)) : 792 (THC_CURSOFF << 16) | THC_CURSOFF; 793 #undef COORD 794 } 795 796 static void 797 cg6_loadcursor(sc) 798 struct cgsix_softc *sc; 799 { 800 volatile struct cg6_thc *thc; 801 u_int edgemask, m; 802 int i; 803 804 /* 805 * Keep the top size.x bits. Here we *throw out* the top 806 * size.x bits from an all-one-bits word, introducing zeros in 807 * the top size.x bits, then invert all the bits to get what 808 * we really wanted as our mask. But this fails if size.x is 809 * 32---a sparc uses only the low 5 bits of the shift count--- 810 * so we have to special case that. 811 */ 812 edgemask = ~0; 813 if (sc->sc_cursor.cc_size.x < 32) 814 edgemask = ~(edgemask >> sc->sc_cursor.cc_size.x); 815 thc = sc->sc_thc; 816 for (i = 0; i < 32; i++) { 817 m = sc->sc_cursor.cc_bits[0][i] & edgemask; 818 thc->thc_cursmask[i] = m; 819 thc->thc_cursbits[i] = m & sc->sc_cursor.cc_bits[1][i]; 820 } 821 } 822 823 /* 824 * Load a subset of the current (new) colormap into the color DAC. 825 */ 826 static void 827 cg6_loadcmap(sc, start, ncolors) 828 struct cgsix_softc *sc; 829 int start, ncolors; 830 { 831 volatile struct bt_regs *bt; 832 u_int *ip, i; 833 int count; 834 835 ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */ 836 count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3; 837 bt = sc->sc_bt; 838 bt->bt_addr = BT_D4M4(start) << 24; 839 while (--count >= 0) { 840 i = *ip++; 841 /* hardware that makes one want to pound boards with hammers */ 842 bt->bt_cmap = i; 843 bt->bt_cmap = i << 8; 844 bt->bt_cmap = i << 16; 845 bt->bt_cmap = i << 24; 846 } 847 } 848 849 /* 850 * Load the cursor (overlay `foreground' and `background') colors. 851 */ 852 static void 853 cg6_loadomap(sc) 854 struct cgsix_softc *sc; 855 { 856 volatile struct bt_regs *bt; 857 u_int i; 858 859 bt = sc->sc_bt; 860 bt->bt_addr = 0x01 << 24; /* set background color */ 861 i = sc->sc_cursor.cc_color.cm_chip[0]; 862 bt->bt_omap = i; /* R */ 863 bt->bt_omap = i << 8; /* G */ 864 bt->bt_omap = i << 16; /* B */ 865 866 bt->bt_addr = 0x03 << 24; /* set foreground color */ 867 bt->bt_omap = i << 24; /* R */ 868 i = sc->sc_cursor.cc_color.cm_chip[1]; 869 bt->bt_omap = i; /* G */ 870 bt->bt_omap = i << 8; /* B */ 871 } 872 873 static void 874 cg6_unblank(dev) 875 struct device *dev; 876 { 877 struct cgsix_softc *sc = (struct cgsix_softc *)dev; 878 879 if (sc->sc_blanked) { 880 sc->sc_blanked = 0; 881 sc->sc_thc->thc_misc |= THC_MISC_VIDEN; 882 } 883 } 884 885 /* XXX the following should be moved to a "user interface" header */ 886 /* 887 * Base addresses at which users can mmap() the various pieces of a cg6. 888 * Note that although the Brooktree color registers do not occupy 8K, 889 * the X server dies if we do not allow it to map 8K there (it just maps 890 * from 0x70000000 forwards, as a contiguous chunk). 891 */ 892 #define CG6_USER_FBC 0x70000000 893 #define CG6_USER_TEC 0x70001000 894 #define CG6_USER_BTREGS 0x70002000 895 #define CG6_USER_FHC 0x70004000 896 #define CG6_USER_THC 0x70005000 897 #define CG6_USER_ROM 0x70006000 898 #define CG6_USER_RAM 0x70016000 899 #define CG6_USER_DHC 0x80000000 900 901 struct mmo { 902 u_long mo_uaddr; /* user (virtual) address */ 903 u_long mo_size; /* size, or 0 for video ram size */ 904 u_long mo_physoff; /* offset from sc_physadr */ 905 }; 906 907 /* 908 * Return the address that would map the given device at the given 909 * offset, allowing for the given protection, or return -1 for error. 910 * 911 * XXX needs testing against `demanding' applications (e.g., aviator) 912 */ 913 paddr_t 914 cgsixmmap(dev, off, prot) 915 dev_t dev; 916 off_t off; 917 int prot; 918 { 919 struct cgsix_softc *sc = cgsix_cd.cd_devs[minor(dev)]; 920 struct mmo *mo; 921 u_int u, sz; 922 static struct mmo mmo[] = { 923 { CG6_USER_RAM, 0, CGSIX_RAM_OFFSET }, 924 925 /* do not actually know how big most of these are! */ 926 { CG6_USER_FBC, 1, CGSIX_FBC_OFFSET }, 927 { CG6_USER_TEC, 1, CGSIX_TEC_OFFSET }, 928 { CG6_USER_BTREGS, 8192 /* XXX */, CGSIX_BT_OFFSET }, 929 { CG6_USER_FHC, 1, CGSIX_FHC_OFFSET }, 930 { CG6_USER_THC, sizeof(struct cg6_thc), CGSIX_THC_OFFSET }, 931 { CG6_USER_ROM, 65536, CGSIX_ROM_OFFSET }, 932 { CG6_USER_DHC, 1, CGSIX_DHC_OFFSET }, 933 }; 934 #define NMMO (sizeof mmo / sizeof *mmo) 935 936 if (off & PGOFSET) 937 panic("cgsixmmap"); 938 939 /* 940 * Entries with size 0 map video RAM (i.e., the size in fb data). 941 * 942 * Since we work in pages, the fact that the map offset table's 943 * sizes are sometimes bizarre (e.g., 1) is effectively ignored: 944 * one byte is as good as one page. 945 */ 946 for (mo = mmo; mo < &mmo[NMMO]; mo++) { 947 if ((u_long)off < mo->mo_uaddr) 948 continue; 949 u = off - mo->mo_uaddr; 950 sz = mo->mo_size ? mo->mo_size : sc->sc_fb.fb_type.fb_size; 951 if (u < sz) { 952 bus_space_handle_t bh; 953 if (bus_space_mmap(sc->sc_bustag, 954 sc->sc_btype, 955 sc->sc_paddr+u+mo->mo_physoff, 956 BUS_SPACE_MAP_LINEAR, &bh)) 957 return (-1); 958 959 return ((paddr_t)bh); 960 } 961 } 962 963 #ifdef DEBUG 964 { 965 struct proc *p = curproc; /* XXX */ 966 log(LOG_NOTICE, "cgsixmmap(0x%llx) (%s[%d])\n", 967 (long long)off, p->p_comm, p->p_pid); 968 } 969 #endif 970 return (-1); /* not a user-map offset */ 971 } 972