smg.c revision 1.47
1 /* $NetBSD: smg.c,v 1.47 2008/03/11 05:34:03 matt Exp $ */ 2 /* 3 * Copyright (c) 1998 Ludd, University of Lule}, Sweden. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed at Ludd, University of 17 * Lule}, Sweden and its contributors. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: smg.c,v 1.47 2008/03/11 05:34:03 matt Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/device.h> 38 #include <sys/systm.h> 39 #include <sys/callout.h> 40 #include <sys/time.h> 41 #include <sys/malloc.h> 42 #include <sys/conf.h> 43 #include <sys/kernel.h> 44 45 #include <machine/vsbus.h> 46 #include <machine/sid.h> 47 #include <machine/cpu.h> 48 #include <machine/ka420.h> 49 50 #include <dev/cons.h> 51 52 #include <dev/dec/dzreg.h> 53 #include <dev/dec/dzvar.h> 54 #include <dev/dec/dzkbdvar.h> 55 56 #include <dev/wscons/wsdisplayvar.h> 57 #include <dev/wscons/wsconsio.h> 58 #include <dev/wscons/wscons_callbacks.h> 59 #include <dev/wsfont/wsfont.h> 60 61 #include "dzkbd.h" 62 #include "opt_wsfont.h" 63 64 /* Screen hardware defs */ 65 #define SM_COLS 128 /* char width of screen */ 66 #define SM_ROWS 57 /* rows of char on screen */ 67 #define SM_CHEIGHT 15 /* lines a char consists of */ 68 #define SM_NEXTROW (SM_COLS * SM_CHEIGHT) 69 #define SM_YWIDTH 864 70 #define SM_XWIDTH 1024 71 72 /* Cursor register definitions */ 73 #define CUR_CMD 0 74 #define CUR_XPOS 4 75 #define CUR_YPOS 8 76 #define CUR_XMIN_1 12 77 #define CUR_XMAX_1 16 78 #define CUR_YMIN_1 20 79 #define CUR_YMAX_1 24 80 #define CUR_XMIN_2 28 81 #define CUR_XMAX_2 32 82 #define CUR_YMIN_2 36 83 #define CUR_YMAX_2 40 84 #define CUR_LOAD 44 85 86 #define CUR_CMD_TEST 0x8000 87 #define CUR_CMD_HSHI 0x4000 88 #define CUR_CMD_VBHI 0x2000 89 #define CUR_CMD_LODSA 0x1000 90 #define CUR_CMD_FORG2 0x0800 91 #define CUR_CMD_ENRG2 0x0400 92 #define CUR_CMD_FORG1 0x0200 93 #define CUR_CMD_ENRG1 0x0100 94 #define CUR_CMD_XHWID 0x0080 95 #define CUR_CMD_XHCL1 0x0040 96 #define CUR_CMD_XHCLP 0x0020 97 #define CUR_CMD_XHAIR 0x0010 98 #define CUR_CMD_FOPB 0x0008 99 #define CUR_CMD_ENPB 0x0004 100 #define CUR_CMD_FOPA 0x0002 101 #define CUR_CMD_ENPA 0x0001 102 103 #define CUR_XBIAS 216 /* Add to cursor position */ 104 #define CUR_YBIAS 33 105 106 #define WRITECUR(addr, val) *(volatile uint16_t *)(curaddr + (addr)) = (val) 107 static char *curaddr; 108 static uint16_t curcmd, curx, cury, hotX, hotY; 109 static int bgmask, fgmask; 110 111 static int smg_match(device_t, cfdata_t, void *); 112 static void smg_attach(device_t, device_t, void *); 113 114 struct smg_softc { 115 struct device ss_dev; 116 }; 117 118 CFATTACH_DECL(smg, sizeof(struct smg_softc), 119 smg_match, smg_attach, NULL, NULL); 120 121 static void smg_cursor(void *, int, int, int); 122 static int smg_mapchar(void *, int, unsigned int *); 123 static void smg_putchar(void *, int, int, u_int, long); 124 static void smg_copycols(void *, int, int, int,int); 125 static void smg_erasecols(void *, int, int, int, long); 126 static void smg_copyrows(void *, int, int, int); 127 static void smg_eraserows(void *, int, int, long); 128 static int smg_allocattr(void *, int, int, int, long *); 129 130 const struct wsdisplay_emulops smg_emulops = { 131 .cursor = smg_cursor, 132 .mapchar = smg_mapchar, 133 .putchar = smg_putchar, 134 .copycols = smg_copycols, 135 .erasecols = smg_erasecols, 136 .copyrows = smg_copyrows, 137 .eraserows = smg_eraserows, 138 .allocattr = smg_allocattr 139 }; 140 141 const struct wsscreen_descr smg_stdscreen = { 142 .name = "128x57", 143 .ncols = SM_COLS, 144 .nrows = SM_ROWS, 145 .textops = &smg_emulops, 146 .fontwidth = 8, 147 .fontheight = SM_CHEIGHT, 148 .capabilities = WSSCREEN_UNDERLINE|WSSCREEN_REVERSE, 149 }; 150 151 const struct wsscreen_descr *_smg_scrlist[] = { 152 &smg_stdscreen, 153 }; 154 155 const struct wsscreen_list smg_screenlist = { 156 .nscreens = __arraycount(_smg_scrlist), 157 .screens = _smg_scrlist, 158 }; 159 160 static char *sm_addr; 161 162 static u_char *qf; 163 164 #define QCHAR(c) (c < 32 ? 32 : (c > 127 ? c - 66 : c - 32)) 165 #define QFONT(c,line) qf[QCHAR(c) * 15 + line] 166 #define SM_ADDR(row, col, line) \ 167 sm_addr[col + (row * SM_CHEIGHT * SM_COLS) + line * SM_COLS] 168 169 170 static int smg_ioctl(void *, void *, u_long, void *, int, struct lwp *); 171 static paddr_t smg_mmap(void *, void *, off_t, int); 172 static int smg_alloc_screen(void *, const struct wsscreen_descr *, 173 void **, int *, int *, long *); 174 static void smg_free_screen(void *, void *); 175 static int smg_show_screen(void *, void *, int, 176 void (*) (void *, int, int), void *); 177 static void smg_crsr_blink(void *); 178 179 const struct wsdisplay_accessops smg_accessops = { 180 .ioctl = smg_ioctl, 181 .mmap = smg_mmap, 182 .alloc_screen = smg_alloc_screen, 183 .free_screen = smg_free_screen, 184 .show_screen = smg_show_screen, 185 }; 186 187 struct smg_screen { 188 int ss_curx; 189 int ss_cury; 190 u_char ss_image[SM_ROWS][SM_COLS]; /* Image of current screen */ 191 u_char ss_attr[SM_ROWS][SM_COLS]; /* Reversed etc... */ 192 }; 193 194 static struct smg_screen smg_conscreen; 195 static struct smg_screen *curscr; 196 197 static callout_t smg_cursor_ch; 198 199 int 200 smg_match(device_t parent, cfdata_t match, void *aux) 201 { 202 struct vsbus_attach_args * const va = aux; 203 volatile uint16_t *ccmd; 204 volatile uint16_t *cfgtst; 205 uint16_t tmp, tmp2; 206 207 if (vax_boardtype == VAX_BTYP_49 || vax_boardtype == VAX_BTYP_53) 208 return 0; 209 210 ccmd = (uint16_t *)va->va_addr; 211 cfgtst = (uint16_t *)vax_map_physmem(VS_CFGTST, 1); 212 /* 213 * Try to find the cursor chip by testing the flip-flop. 214 * If nonexistent, no glass tty. 215 */ 216 ccmd[0] = CUR_CMD_HSHI|CUR_CMD_FOPB; 217 DELAY(300000); 218 tmp = cfgtst[0]; 219 ccmd[0] = CUR_CMD_TEST|CUR_CMD_HSHI; 220 DELAY(300000); 221 tmp2 = cfgtst[0]; 222 vax_unmap_physmem((vaddr_t)cfgtst, 1); 223 224 if (tmp2 != tmp) 225 return 20; /* Using periodic interrupt */ 226 else 227 return 0; 228 } 229 230 void 231 smg_attach(device_t parent, device_t self, void *aux) 232 { 233 struct wsemuldisplaydev_attach_args aa; 234 struct wsdisplay_font *console_font; 235 int fcookie; 236 237 aprint_normal("\n"); 238 sm_addr = (void *)vax_map_physmem(SMADDR, (SMSIZE/VAX_NBPG)); 239 curaddr = (void *)vax_map_physmem(KA420_CUR_BASE, 1); 240 if (sm_addr == 0) { 241 aprint_error_dev(self, "Couldn't alloc graphics memory.\n"); 242 return; 243 } 244 if (curscr == NULL) 245 callout_init(&smg_cursor_ch, 0); 246 curscr = &smg_conscreen; 247 aa.console = (vax_confdata & (KA420_CFG_L3CON|KA420_CFG_MULTU)) == 0; 248 249 aa.scrdata = &smg_screenlist; 250 aa.accessops = &smg_accessops; 251 callout_reset(&smg_cursor_ch, hz / 2, smg_crsr_blink, NULL); 252 curcmd = CUR_CMD_HSHI; 253 WRITECUR(CUR_CMD, curcmd); 254 if ((fcookie = wsfont_find(NULL, 8, 15, 0, 255 WSDISPLAY_FONTORDER_R2L, WSDISPLAY_FONTORDER_L2R)) < 0) { 256 aprint_error_dev(self, "could not find 8x15 font\n"); 257 return; 258 } 259 if (wsfont_lock(fcookie, &console_font) != 0) { 260 aprint_error_dev(self, "could not lock 8x15 font\n"); 261 return; 262 } 263 qf = console_font->data; 264 265 config_found(self, &aa, wsemuldisplaydevprint); 266 } 267 268 static u_char *cursor; 269 static int cur_on; 270 271 static void 272 smg_crsr_blink(void *arg) 273 { 274 if (cur_on) 275 *cursor ^= 255; 276 callout_reset(&smg_cursor_ch, hz / 2, smg_crsr_blink, NULL); 277 } 278 279 void 280 smg_cursor(void *id, int on, int row, int col) 281 { 282 struct smg_screen * const ss = id; 283 284 if (ss == curscr) { 285 SM_ADDR(ss->ss_cury, ss->ss_curx, 14) = 286 QFONT(ss->ss_image[ss->ss_cury][ss->ss_curx], 14); 287 cursor = &SM_ADDR(row, col, 14); 288 if ((cur_on = on)) 289 *cursor ^= 255; 290 } 291 ss->ss_curx = col; 292 ss->ss_cury = row; 293 } 294 295 int 296 smg_mapchar(void *id, int uni, unsigned int *index) 297 { 298 if (uni < 256) { 299 *index = uni; 300 return (5); 301 } 302 *index = ' '; 303 return (0); 304 } 305 306 static void 307 smg_putchar(void *id, int row, int col, u_int c, long attr) 308 { 309 struct smg_screen * const ss = id; 310 int i; 311 312 c &= 0xff; 313 314 ss->ss_image[row][col] = c; 315 ss->ss_attr[row][col] = attr; 316 if (ss != curscr) 317 return; 318 for (i = 0; i < 15; i++) { 319 unsigned char ch = QFONT(c, i); 320 321 SM_ADDR(row, col, i) = (attr & WSATTR_REVERSE ? ~ch : ch); 322 323 } 324 if (attr & WSATTR_UNDERLINE) 325 SM_ADDR(row, col, 14) ^= SM_ADDR(row, col, 14); 326 } 327 328 /* 329 * copies columns inside a row. 330 */ 331 static void 332 smg_copycols(void *id, int row, int srccol, int dstcol, int ncols) 333 { 334 struct smg_screen * const ss = id; 335 int i; 336 337 bcopy(&ss->ss_image[row][srccol], &ss->ss_image[row][dstcol], ncols); 338 bcopy(&ss->ss_attr[row][srccol], &ss->ss_attr[row][dstcol], ncols); 339 if (ss != curscr) 340 return; 341 for (i = 0; i < SM_CHEIGHT; i++) 342 bcopy(&SM_ADDR(row,srccol, i), &SM_ADDR(row, dstcol, i),ncols); 343 } 344 345 /* 346 * Erases a bunch of chars inside one row. 347 */ 348 static void 349 smg_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 350 { 351 struct smg_screen * const ss = id; 352 int i; 353 354 bzero(&ss->ss_image[row][startcol], ncols); 355 bzero(&ss->ss_attr[row][startcol], ncols); 356 if (ss != curscr) 357 return; 358 for (i = 0; i < SM_CHEIGHT; i++) 359 bzero(&SM_ADDR(row, startcol, i), ncols); 360 } 361 362 static void 363 smg_copyrows(void *id, int srcrow, int dstrow, int nrows) 364 { 365 struct smg_screen * const ss = id; 366 int frows; 367 368 bcopy(&ss->ss_image[srcrow][0], &ss->ss_image[dstrow][0], 369 nrows * SM_COLS); 370 bcopy(&ss->ss_attr[srcrow][0], &ss->ss_attr[dstrow][0], 371 nrows * SM_COLS); 372 if (ss != curscr) 373 return; 374 if (nrows > 25) { 375 frows = nrows >> 1; 376 if (srcrow > dstrow) { 377 bcopy(&sm_addr[(srcrow * SM_NEXTROW)], 378 &sm_addr[(dstrow * SM_NEXTROW)], 379 frows * SM_NEXTROW); 380 bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)], 381 &sm_addr[((dstrow + frows) * SM_NEXTROW)], 382 (nrows - frows) * SM_NEXTROW); 383 } else { 384 bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)], 385 &sm_addr[((dstrow + frows) * SM_NEXTROW)], 386 (nrows - frows) * SM_NEXTROW); 387 bcopy(&sm_addr[(srcrow * SM_NEXTROW)], 388 &sm_addr[(dstrow * SM_NEXTROW)], 389 frows * SM_NEXTROW); 390 } 391 } else 392 bcopy(&sm_addr[(srcrow * SM_NEXTROW)], 393 &sm_addr[(dstrow * SM_NEXTROW)], nrows * SM_NEXTROW); 394 } 395 396 static void 397 smg_eraserows(void *id, int startrow, int nrows, long fillattr) 398 { 399 struct smg_screen * const ss = id; 400 int frows; 401 402 bzero(&ss->ss_image[startrow][0], nrows * SM_COLS); 403 bzero(&ss->ss_attr[startrow][0], nrows * SM_COLS); 404 if (ss != curscr) 405 return; 406 if (nrows > 25) { 407 frows = nrows >> 1; 408 bzero(&sm_addr[(startrow * SM_NEXTROW)], frows * SM_NEXTROW); 409 bzero(&sm_addr[((startrow + frows) * SM_NEXTROW)], 410 (nrows - frows) * SM_NEXTROW); 411 } else 412 bzero(&sm_addr[(startrow * SM_NEXTROW)], nrows * SM_NEXTROW); 413 } 414 415 static int 416 smg_allocattr(void *id, int fg, int bg, int flags, long *attrp) 417 { 418 *attrp = flags; 419 return 0; 420 } 421 422 static void 423 setcursor(struct wsdisplay_cursor *v) 424 { 425 uint16_t red, green, blue; 426 uint32_t curfg[16], curmask[16]; 427 int i; 428 429 /* Enable cursor */ 430 if (v->which & WSDISPLAY_CURSOR_DOCUR) { 431 if (v->enable) 432 curcmd |= CUR_CMD_ENPB|CUR_CMD_ENPA; 433 else 434 curcmd &= ~(CUR_CMD_ENPB|CUR_CMD_ENPA); 435 WRITECUR(CUR_CMD, curcmd); 436 } 437 if (v->which & WSDISPLAY_CURSOR_DOHOT) { 438 hotX = v->hot.x; 439 hotY = v->hot.y; 440 } 441 if (v->which & WSDISPLAY_CURSOR_DOCMAP) { 442 /* First background */ 443 red = fusword(v->cmap.red); 444 green = fusword(v->cmap.green); 445 blue = fusword(v->cmap.blue); 446 bgmask = (((30L * red + 59L * green + 11L * blue) >> 8) >= 447 (((1<<8)-1)*50)) ? ~0 : 0; 448 red = fusword(v->cmap.red+2); 449 green = fusword(v->cmap.green+2); 450 blue = fusword(v->cmap.blue+2); 451 fgmask = (((30L * red + 59L * green + 11L * blue) >> 8) >= 452 (((1<<8)-1)*50)) ? ~0 : 0; 453 } 454 if (v->which & WSDISPLAY_CURSOR_DOSHAPE) { 455 WRITECUR(CUR_CMD, curcmd | CUR_CMD_LODSA); 456 copyin(v->image, curfg, sizeof(curfg)); 457 copyin(v->mask, curmask, sizeof(curmask)); 458 for (i = 0; i < sizeof(curfg)/sizeof(curfg[0]); i++) { 459 WRITECUR(CUR_LOAD, ((uint16_t)curfg[i] & fgmask) | 460 (((uint16_t)curmask[i] & (uint16_t)~curfg[i]) 461 & bgmask)); 462 } 463 for (i = 0; i < sizeof(curmask)/sizeof(curmask[0]); i++) { 464 WRITECUR(CUR_LOAD, (uint16_t)curmask[i]); 465 } 466 WRITECUR(CUR_CMD, curcmd); 467 } 468 } 469 470 int 471 smg_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) 472 { 473 struct wsdisplay_fbinfo *fb = (void *)data; 474 static uint16_t curc; 475 476 switch (cmd) { 477 case WSDISPLAYIO_GTYPE: 478 *(u_int *)data = WSDISPLAY_TYPE_VAX_MONO; 479 break; 480 481 case WSDISPLAYIO_GINFO: 482 fb->height = SM_YWIDTH; 483 fb->width = SM_XWIDTH; 484 fb->depth = 1; 485 fb->cmsize = 2; 486 break; 487 488 case WSDISPLAYIO_SVIDEO: 489 if (*(u_int *)data == WSDISPLAYIO_VIDEO_ON) { 490 curcmd = curc; 491 } else { 492 curc = curcmd; 493 curcmd &= ~(CUR_CMD_FOPA|CUR_CMD_ENPA); 494 curcmd |= CUR_CMD_FOPB; 495 } 496 WRITECUR(CUR_CMD, curcmd); 497 break; 498 499 case WSDISPLAYIO_GVIDEO: 500 *(u_int *)data = (curcmd & CUR_CMD_FOPB ? 501 WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON); 502 break; 503 504 case WSDISPLAYIO_SCURSOR: 505 setcursor((struct wsdisplay_cursor *)data); 506 break; 507 508 case WSDISPLAYIO_SCURPOS: 509 curx = ((struct wsdisplay_curpos *)data)->x; 510 cury = ((struct wsdisplay_curpos *)data)->y; 511 WRITECUR(CUR_XPOS, curx + CUR_XBIAS); 512 WRITECUR(CUR_YPOS, cury + CUR_YBIAS); 513 break; 514 515 case WSDISPLAYIO_GCURPOS: 516 ((struct wsdisplay_curpos *)data)->x = curx; 517 ((struct wsdisplay_curpos *)data)->y = cury; 518 break; 519 520 case WSDISPLAYIO_GCURMAX: 521 ((struct wsdisplay_curpos *)data)->x = 16; 522 ((struct wsdisplay_curpos *)data)->y = 16; 523 break; 524 525 default: 526 return EPASSTHROUGH; 527 } 528 return 0; 529 } 530 531 static paddr_t 532 smg_mmap(void *v, void *vs, off_t offset, int prot) 533 { 534 if (offset >= SMSIZE || offset < 0) 535 return -1; 536 return (SMADDR + offset) >> PGSHIFT; 537 } 538 539 int 540 smg_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 541 int *curxp, int *curyp, long *defattrp) 542 { 543 *cookiep = malloc(sizeof(struct smg_screen), M_DEVBUF, M_WAITOK); 544 bzero(*cookiep, sizeof(struct smg_screen)); 545 *curxp = *curyp = *defattrp = 0; 546 return 0; 547 } 548 549 void 550 smg_free_screen(void *v, void *cookie) 551 { 552 } 553 554 int 555 smg_show_screen(void *v, void *cookie, int waitok, 556 void (*cb)(void *, int, int), void *cbarg) 557 { 558 struct smg_screen *ss = cookie; 559 int row, col, line; 560 561 if (ss == curscr) 562 return (0); 563 564 for (row = 0; row < SM_ROWS; row++) 565 for (line = 0; line < SM_CHEIGHT; line++) { 566 for (col = 0; col < SM_COLS; col++) { 567 u_char s, c = ss->ss_image[row][col]; 568 569 if (c < 32) 570 c = 32; 571 s = QFONT(c, line); 572 if (ss->ss_attr[row][col] & WSATTR_REVERSE) 573 s ^= 255; 574 SM_ADDR(row, col, line) = s; 575 if (ss->ss_attr[row][col] & WSATTR_UNDERLINE) 576 SM_ADDR(row, col, line) = 255; 577 } 578 } 579 cursor = &sm_addr[(ss->ss_cury * SM_CHEIGHT * SM_COLS) + ss->ss_curx + 580 ((SM_CHEIGHT - 1) * SM_COLS)]; 581 curscr = ss; 582 return (0); 583 } 584 585 cons_decl(smg); 586 587 void 588 smgcninit(struct consdev *cndev) 589 { 590 int fcookie; 591 struct wsdisplay_font *console_font; 592 extern void lkccninit(struct consdev *); 593 extern int lkccngetc(dev_t); 594 extern int dz_vsbus_lk201_cnattach(int); 595 /* Clear screen */ 596 memset(sm_addr, 0, 128*864); 597 598 callout_init(&smg_cursor_ch, 0); 599 600 curscr = &smg_conscreen; 601 wsdisplay_cnattach(&smg_stdscreen, &smg_conscreen, 0, 0, 0); 602 cn_tab->cn_pri = CN_INTERNAL; 603 if ((fcookie = wsfont_find(NULL, 8, 15, 0, 604 WSDISPLAY_FONTORDER_R2L, WSDISPLAY_FONTORDER_L2R)) < 0) 605 { 606 printf("smg: could not find 8x15 font\n"); 607 return; 608 } 609 if (wsfont_lock(fcookie, &console_font) != 0) { 610 printf("smg: could not lock 8x15 font\n"); 611 return; 612 } 613 qf = console_font->data; 614 615 #if NDZKBD > 0 616 dzkbd_cnattach(0); /* Connect keyboard and screen together */ 617 #endif 618 } 619 620 /* 621 * Called very early to setup the glass tty as console. 622 * Because it's called before the VM system is inited, virtual memory 623 * for the framebuffer can be stolen directly without disturbing anything. 624 */ 625 void 626 smgcnprobe(struct consdev *cndev) 627 { 628 extern vaddr_t virtual_avail; 629 extern const struct cdevsw wsdisplay_cdevsw; 630 631 switch (vax_boardtype) { 632 case VAX_BTYP_410: 633 case VAX_BTYP_420: 634 case VAX_BTYP_43: 635 if ((vax_confdata & KA420_CFG_L3CON) || 636 (vax_confdata & KA420_CFG_MULTU)) 637 break; /* doesn't use graphics console */ 638 sm_addr = (void *)virtual_avail; 639 virtual_avail += SMSIZE; 640 ioaccess((vaddr_t)sm_addr, SMADDR, (SMSIZE/VAX_NBPG)); 641 cndev->cn_pri = CN_INTERNAL; 642 cndev->cn_dev = makedev(cdevsw_lookup_major(&wsdisplay_cdevsw), 643 0); 644 break; 645 646 default: 647 break; 648 } 649 } 650
Indexes created Mon Oct 20 00:09:40 GMT 2025