mntva.c revision 1.2 1 /* $NetBSD: mntva.c,v 1.2 2016/10/23 18:40:52 phx Exp $ */
2
3 /*
4 * Copyright (c) 2012, 2016 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lukas F. Hartmann.
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Radoslaw Kujawa.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
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: mntva.c,v 1.2 2016/10/23 18:40:52 phx Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/device.h>
40 #include <sys/endian.h>
41 #include <sys/bus.h>
42 #include <sys/cpu.h>
43 #include <sys/conf.h>
44
45 #include <dev/cons.h>
46
47 #include <amiga/amiga/device.h>
48 #include <amiga/amiga/isr.h>
49
50 #include <amiga/dev/zbusvar.h>
51 #include <amiga/dev/mntvavar.h>
52 #include <amiga/dev/mntvareg.h>
53 #include <dev/wsfb/genfbvar.h>
54
55 #include "opt_amigacons.h"
56 #include "opt_wsemul.h"
57 #include "opt_mntva.h"
58 #include "opt_wsfb.h"
59
60 #include "mntva.h"
61
62 /* #define MNTVA_DEBUG 1 */
63
64 static int mntva_match(device_t, cfdata_t, void *);
65 static void mntva_attach(device_t, device_t, void *);
66
67 static uint16_t mntva_reg_read(struct mntva_softc *sc, uint32_t reg);
68 static void mntva_reg_write(struct mntva_softc *sc, uint32_t reg, uint32_t val);
69
70 static bool mntva_mode_set(struct mntva_softc *sc);
71
72 static paddr_t mntva_mmap(void *v, void *vs, off_t offset, int prot);
73 static int mntva_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
74 struct lwp *l);
75 static void mntva_init_screen(void *cookie, struct vcons_screen *scr,
76 int existing, long *defattr);
77 static void mntva_init_palette(struct mntva_softc *sc);
78 /* blitter support */
79 static void mntva_rectfill(struct mntva_softc *sc, int x, int y, int wi,
80 int he, uint32_t color);
81 static void mntva_bitblt(struct mntva_softc *sc, int xs, int ys, int xd,
82 int yd, int wi, int he);
83
84 /* accelerated raster ops */
85 static void mntva_eraserows(void *cookie, int row, int nrows, long fillattr);
86 static void mntva_copyrows(void *cookie, int srcrow, int dstrow, int nrows);
87 static void mntva_copycols(void *cookie, int row, int srccol, int dstcol,
88 int ncols);
89 static void mntva_erasecols(void *cookie, int row, int startcol, int ncols,
90 long fillattr);
91 #if 0
92 static void mntva_cursor(void *cookie, int on, int row, int col);
93 #endif
94
95 /*
96 * XXX: these will be called by console handling code, shouldn't they be
97 * included from somewhere else?
98 */
99 void mntvacninit(struct consdev *cd);
100 void mntvacnprobe(struct consdev *cd);
101 void mntvacnputc(dev_t cd, int ch);
102 int mntvacngetc(dev_t cd);
103 void mntvacnpollc(dev_t cd, int on);
104
105 CFATTACH_DECL_NEW(mntva, sizeof(struct mntva_softc),
106 mntva_match, mntva_attach, NULL, NULL);
107
108 struct wsdisplay_accessops mntva_accessops = {
109 mntva_ioctl,
110 mntva_mmap,
111 NULL, // alloc_screen
112 NULL, // free_screen
113 NULL, // show_screen
114 NULL, // load_font
115 NULL, // pollc
116 NULL // scroll
117 };
118
119 static int
120 mntva_match(device_t parent, cfdata_t match, void *aux)
121 {
122 struct zbus_args *zap = aux;
123
124 if (zap->manid == 0x6d6e && zap->prodid == 1) {
125 #ifdef MNTVA_DEBUG
126 /* XXX: this might not work during console init? */
127 aprint_normal("mntva_match... success!\n");
128 #endif /* MNTVA_DEBUG */
129 return 1;
130 }
131
132 return 0;
133 }
134
135 static void
136 mntva_attach(device_t parent, device_t self, void *aux)
137 {
138 struct mntva_softc *sc = device_private(self);
139 struct wsemuldisplaydev_attach_args ws_aa;
140 struct rasops_info *ri;
141 struct zbus_args *zap = aux;
142 long defattr;
143
144 sc->sc_isconsole = false;
145 /* this should come from "opt_mntva.h" auto generated by kernel conf system */
146 #ifdef MNTVA_CONSOLE
147 sc->sc_isconsole = true;
148 #endif /* MNTVA_CONSOLE */
149
150 printf(": MNTMN VA2000");
151
152 if(sc->sc_isconsole)
153 printf(" (console)");
154
155 printf("\n");
156
157 sc->sc_dev = self;
158 sc->sc_memsize = MNTVA_FB_SIZE;
159
160 sc->sc_bst.base = (bus_addr_t) zap->va;
161 sc->sc_bst.absm = &amiga_bus_stride_1;
162 sc->sc_iot = &sc->sc_bst;
163
164 if (bus_space_map(sc->sc_iot, MNTVA_OFF_FB, sc->sc_memsize + 0x1000,
165 BUS_SPACE_MAP_LINEAR, &sc->sc_fbh)) {
166 aprint_error_dev(sc->sc_dev, "mapping framebuffer failed\n");
167 return;
168 }
169 if (bus_space_map(sc->sc_iot, MNTVA_OFF_REG, MNTVA_REG_SIZE , 0,
170 &sc->sc_regh)) {
171 aprint_error_dev(sc->sc_dev, "mapping registers failed\n");
172 return;
173 }
174
175 sc->sc_regpa = (bus_addr_t) kvtop((void*) sc->sc_regh);
176 sc->sc_fbpa = (bus_addr_t) kvtop((void*) sc->sc_fbh);
177
178 /* print the physical and virt addresses for registers and fb */
179 aprint_normal_dev(sc->sc_dev,
180 "registers at pa/va 0x%08x/0x%08x, fb at pa/va 0x%08x/0x%08x\n",
181 (uint32_t) sc->sc_regpa,
182 (uint32_t) bus_space_vaddr(sc->sc_iot, sc->sc_regh),
183 (uint32_t) sc->sc_fbpa,
184 (uint32_t) bus_space_vaddr(sc->sc_iot, sc->sc_fbh));
185
186 sc->sc_width = 1280;
187 sc->sc_height = 720;
188 sc->sc_bpp = 16;
189 sc->sc_linebytes = 4096;
190
191 aprint_normal_dev(sc->sc_dev, "%zu kB framebuffer memory present\n",
192 sc->sc_memsize / 1024);
193
194 aprint_normal_dev(sc->sc_dev, "setting %dx%d %d bpp resolution\n",
195 sc->sc_width, sc->sc_height, sc->sc_bpp);
196
197 mntva_mode_set(sc);
198
199 sc->sc_defaultscreen_descr = (struct wsscreen_descr) {
200 "default", 0, 0, NULL, 8, 16,
201 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, NULL };
202 sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
203 sc->sc_screenlist = (struct wsscreen_list) { 1, sc->sc_screens };
204 sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
205
206 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, &mntva_accessops);
207 sc->vd.init_screen = mntva_init_screen;
208
209 ri = &sc->sc_console_screen.scr_ri;
210
211 mntva_init_palette(sc);
212
213 if (sc->sc_isconsole) {
214 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1,
215 &defattr);
216
217 sc->sc_console_screen.scr_flags = VCONS_SCREEN_IS_STATIC;
218 vcons_redraw_screen(&sc->sc_console_screen);
219
220 sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
221 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
222 sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
223 sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
224
225 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
226 defattr);
227 vcons_replay_msgbuf(&sc->sc_console_screen);
228 } else {
229 if (sc->sc_console_screen.scr_ri.ri_rows == 0) {
230 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1,
231 &defattr);
232 } else
233 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr);
234 }
235
236 ws_aa.console = sc->sc_isconsole;
237 ws_aa.scrdata = &sc->sc_screenlist;
238 ws_aa.accessops = &mntva_accessops;
239 ws_aa.accesscookie = &sc->vd;
240
241 config_found(sc->sc_dev, &ws_aa, wsemuldisplaydevprint);
242 }
243
244 static void
245 mntva_init_palette(struct mntva_softc *sc)
246 {
247 int i, j;
248
249 j = 0;
250 for (i=0; i<256; i++) {
251 mntva_reg_write(sc, 0x200+i*2, rasops_cmap[j]);
252 mntva_reg_write(sc, 0x400+i*2, rasops_cmap[j+1]);
253 mntva_reg_write(sc, 0x600+i*2, rasops_cmap[j+2]);
254 j+=3;
255 }
256 }
257
258 static void
259 mntva_init_screen(void *cookie, struct vcons_screen *scr, int existing,
260 long *defattr)
261 {
262 struct mntva_softc *sc = cookie;
263 struct rasops_info *ri = &scr->scr_ri;
264
265 wsfont_init();
266
267 ri->ri_depth = sc->sc_bpp;
268 ri->ri_width = sc->sc_width;
269 ri->ri_height = sc->sc_height;
270 ri->ri_stride = sc->sc_linebytes;
271 ri->ri_flg = 0;
272
273 /*ri->ri_flg = RI_BSWAP;*/
274
275 ri->ri_bits = (char *) bus_space_vaddr(sc->sc_iot, sc->sc_fbh);
276 #ifdef MNTVA_DEBUG
277 aprint_normal_dev(sc->sc_dev, "ri_bits: %p\n", ri->ri_bits);
278 #endif /* MNTVA_DEBUG */
279
280 scr->scr_flags = VCONS_SCREEN_IS_STATIC;
281
282 rasops_init(ri, 0, 0);
283 ri->ri_caps = WSSCREEN_WSCOLORS;
284 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
285 sc->sc_width / ri->ri_font->fontwidth);
286
287 ri->ri_hw = scr;
288
289 ri->ri_ops.eraserows = mntva_eraserows;
290 ri->ri_ops.copyrows = mntva_copyrows;
291 ri->ri_ops.erasecols = mntva_erasecols;
292 ri->ri_ops.copycols = mntva_copycols;
293 #if 0
294 ri->ri_ops.cursor = mntva_cursor;
295 #endif
296 }
297
298 static bool
299 mntva_mode_set(struct mntva_softc *sc)
300 {
301 mntva_reg_write(sc, MNTVA_SCALEMODE, 0);
302 mntva_reg_write(sc, MNTVA_SCREENW, sc->sc_width);
303 mntva_reg_write(sc, MNTVA_SCREENH, sc->sc_height);
304
305 if (sc->sc_bpp == 8)
306 mntva_reg_write(sc, MNTVA_COLORMODE, MNTVA_COLORMODE8);
307 else if (sc->sc_bpp == 16)
308 mntva_reg_write(sc, MNTVA_COLORMODE, MNTVA_COLORMODE16);
309 else if (sc->sc_bpp == 32)
310 mntva_reg_write(sc, MNTVA_COLORMODE, MNTVA_COLORMODE32);
311
312 mntva_reg_write(sc, MNTVA_PANPTRHI, 0);
313 mntva_reg_write(sc, MNTVA_PANPTRLO, 0);
314 mntva_reg_write(sc, MNTVA_BLITTERBASEHI, 0);
315 mntva_reg_write(sc, MNTVA_BLITTERBASELO, 0);
316
317 /* XXX: should rectfill with bg color taken from wscons? */
318 mntva_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 0xffffffff);
319
320 return true;
321 }
322
323 static uint16_t
324 mntva_reg_read(struct mntva_softc *sc, uint32_t reg)
325 {
326 uint32_t rv;
327 rv = bus_space_read_2(sc->sc_iot, sc->sc_regh, reg);
328 return rv;
329 }
330
331 static void
332 mntva_reg_write(struct mntva_softc *sc, uint32_t reg, uint32_t val)
333 {
334 bus_space_write_2(sc->sc_iot, sc->sc_regh, reg, val);
335 }
336
337 static void
338 mntva_rectfill(struct mntva_softc *sc, int x, int y, int wi, int he,
339 uint32_t color)
340 {
341 mntva_reg_write(sc, MNTVA_BLITTERRGB, (uint16_t) color);
342 mntva_reg_write(sc, MNTVA_BLITTERX1, (uint16_t) x);
343 mntva_reg_write(sc, MNTVA_BLITTERY1, (uint16_t) y);
344 mntva_reg_write(sc, MNTVA_BLITTERX2, (uint16_t) x + wi - 1);
345 mntva_reg_write(sc, MNTVA_BLITTERY2, (uint16_t) y + he - 1);
346 mntva_reg_write(sc, MNTVA_BLITTER_ENABLE, MNTVA_BLITTER_FILL);
347
348 while(mntva_reg_read(sc, MNTVA_BLITTER_ENABLE)) {
349 /* busy wait */
350 }
351 }
352
353 static void
354 mntva_bitblt(struct mntva_softc *sc, int xs, int ys, int xd, int yd, int wi,
355 int he)
356 {
357 mntva_reg_write(sc, MNTVA_BLITTERX1, (uint16_t) xd);
358 mntva_reg_write(sc, MNTVA_BLITTERY1, (uint16_t) yd);
359 mntva_reg_write(sc, MNTVA_BLITTERX2, (uint16_t) xd + wi - 1);
360 mntva_reg_write(sc, MNTVA_BLITTERY2, (uint16_t) yd + he - 1);
361 mntva_reg_write(sc, MNTVA_BLITTERX3, (uint16_t) xs);
362 mntva_reg_write(sc, MNTVA_BLITTERY3, (uint16_t) ys);
363 mntva_reg_write(sc, MNTVA_BLITTERX4, (uint16_t) xs + wi - 1);
364 mntva_reg_write(sc, MNTVA_BLITTERY4, (uint16_t) ys + he - 1);
365 mntva_reg_write(sc, MNTVA_BLITTER_ENABLE, MNTVA_BLITTER_COPY);
366
367 while(mntva_reg_read(sc, MNTVA_BLITTER_ENABLE)) {
368 /* busy wait */
369 }
370 }
371
372 static void
373 mntva_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
374 {
375 struct mntva_softc *sc;
376 struct rasops_info *ri;
377 struct vcons_screen *scr;
378 int x, ys, yd, wi, he;
379
380 ri = cookie;
381 scr = ri->ri_hw;
382 sc = scr->scr_cookie;
383
384 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
385 x = ri->ri_xorigin;
386 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
387 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
388 wi = ri->ri_emuwidth;
389 he = ri->ri_font->fontheight * nrows;
390 mntva_bitblt(sc, x, ys, x, yd, wi, he);
391 }
392 }
393
394 static void
395 mntva_eraserows(void *cookie, int row, int nrows, long fillattr)
396 {
397 struct mntva_softc *sc;
398 struct rasops_info *ri;
399 struct vcons_screen *scr;
400 int x, y, wi, he, fg, bg, ul;
401
402 ri = cookie;
403 scr = ri->ri_hw;
404 sc = scr->scr_cookie;
405
406 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
407 rasops_unpack_attr(fillattr, &fg, &bg, &ul);
408 if ((row == 0) && (nrows == ri->ri_rows))
409 mntva_rectfill(sc, 0, 0, ri->ri_width,
410 ri->ri_height, ri->ri_devcmap[bg]);
411 else {
412 x = ri->ri_xorigin;
413 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
414 wi = ri->ri_emuwidth;
415 he = ri->ri_font->fontheight * nrows;
416 mntva_rectfill(sc, x, y, wi, he, ri->ri_devcmap[bg]);
417 }
418 }
419 }
420
421 static void
422 mntva_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
423 {
424 struct mntva_softc *sc;
425 struct rasops_info *ri;
426 struct vcons_screen *scr;
427 int xs, xd, y, w, h;
428
429 ri = cookie;
430 scr = ri->ri_hw;
431 sc = scr->scr_cookie;
432
433 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
434 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
435 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
436 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
437 w = ri->ri_font->fontwidth * ncols;
438 h = ri->ri_font->fontheight;
439 mntva_bitblt(sc, xs, y, xd, y, w, h);
440 }
441
442 }
443
444 static void
445 mntva_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
446 {
447 struct mntva_softc *sc;
448 struct rasops_info *ri;
449 struct vcons_screen *scr;
450 int x, y, w, h, fg, bg, ul;
451
452 ri = cookie;
453 scr = ri->ri_hw;
454 sc = scr->scr_cookie;
455
456 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
457 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
458 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
459 w = ri->ri_font->fontwidth * ncols;
460 h = ri->ri_font->fontheight;
461 rasops_unpack_attr(fillattr, &fg, &bg, &ul);
462 mntva_rectfill(sc, x, y, w, h, ri->ri_devcmap[bg & 0xf]);
463 }
464 }
465
466 static int
467 mntva_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l)
468 {
469 struct vcons_data *vd;
470 struct mntva_softc *sc;
471 struct wsdisplay_fbinfo *wsfbi;
472 struct vcons_screen *ms;
473 struct wsdisplayio_bus_id *busid;
474
475 vd = v;
476 sc = vd->cookie;
477 ms = vd->active;
478
479 switch (cmd) {
480 case WSDISPLAYIO_GTYPE:
481 *(u_int *) data = WSDISPLAY_TYPE_UNKNOWN;
482 return 0;
483
484 case WSDISPLAYIO_GET_BUSID:
485 busid = data;
486 busid->bus_type = WSDISPLAYIO_BUS_SOC;
487 return 0;
488
489 case WSDISPLAYIO_GINFO:
490 if (ms == NULL)
491 return ENODEV;
492
493 wsfbi = (void *) data;
494 wsfbi->height = ms->scr_ri.ri_height;
495 wsfbi->width = ms->scr_ri.ri_width;
496 wsfbi->depth = ms->scr_ri.ri_depth;
497 wsfbi->cmsize = 256;
498 return 0;
499
500 case WSDISPLAYIO_LINEBYTES:
501 *(u_int *) data = sc->sc_linebytes;
502 return 0;
503
504 case WSDISPLAYIO_SMODE:
505 {
506 int new_mode = *(int *) data;
507 if (new_mode != sc->sc_mode) {
508 sc->sc_mode = new_mode;
509 if (new_mode == WSDISPLAYIO_MODE_EMUL)
510 vcons_redraw_screen(ms);
511 }
512 return 0;
513 }
514 case WSDISPLAYIO_GET_FBINFO:
515 {
516 struct wsdisplayio_fbinfo *fbi = data;
517 struct rasops_info *ri;
518 int ret;
519
520 ri = &sc->vd.active->scr_ri;
521 ret = wsdisplayio_get_fbinfo(ri, fbi);
522 return ret;
523 }
524 }
525
526 return EPASSTHROUGH;
527 }
528
529 #if 0
530 static void
531 mntva_cursor(void *cookie, int on, int row, int col)
532 {
533 struct mntva_softc *sc;
534 struct rasops_info *ri;
535 struct vcons_screen *scr;
536 int x, y, wi, he;
537
538 ri = cookie;
539 scr = ri->ri_hw;
540 sc = scr->scr_cookie;
541
542 wi = ri->ri_font->fontwidth;
543 he = ri->ri_font->fontheight;
544
545 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
546 x = ri->ri_ccol * wi + ri->ri_xorigin;
547 y = ri->ri_crow * he + ri->ri_yorigin;
548 if (ri->ri_flg & RI_CURSOR) {
549 mntva_bitblt(sc, x, y, x, y, wi, he);
550 ri->ri_flg &= ~RI_CURSOR;
551 }
552 ri->ri_crow = row;
553 ri->ri_ccol = col;
554 if (on) {
555 x = ri->ri_ccol * wi + ri->ri_xorigin;
556 y = ri->ri_crow * he + ri->ri_yorigin;
557 mntva_bitblt(sc, x, y, x, y, wi, he);
558 ri->ri_flg |= RI_CURSOR;
559 }
560 } else {
561 scr->scr_ri.ri_crow = row;
562 scr->scr_ri.ri_ccol = col;
563 scr->scr_ri.ri_flg &= ~RI_CURSOR;
564 }
565 }
566 #endif
567
568 static paddr_t
569 mntva_mmap(void *v, void *vs, off_t offset, int prot)
570 {
571 struct vcons_data *vd;
572 struct mntva_softc *sc;
573 paddr_t pa;
574
575 vd = v;
576 sc = vd->cookie;
577
578 if (offset >= 0 && offset < sc->sc_memsize) {
579 pa = bus_space_mmap(sc->sc_iot, sc->sc_fbpa, offset, prot,
580 BUS_SPACE_MAP_LINEAR);
581 return pa;
582 }
583
584 return -1;
585 }
586
587 void
588 mntvacninit(struct consdev *cd)
589 {
590 /*wsdisplay_preattach(sc->sc_defaultscreen, ri, 0, 0, defattr);*/
591 }
592
593 void
594 mntvacnprobe(struct consdev *cd)
595 {
596 #ifdef MNTVA_CONSOLE
597 /*
598 * This isn't exactly true, but cons.h does not define anything
599 * that would fit our case exactly.
600 */
601 cd->cn_pri = CN_INTERNAL;
602
603 cd->cn_dev = NODEV; /* Filled later by wscons. */
604 #endif /* MNTVA_CONSOLE */
605 }
606
607 /* ARGSUSED */
608 void
609 mntvacnputc(dev_t cd, int ch)
610 {
611 }
612
613 /* ARGSUSED */
614 int
615 mntvacngetc(dev_t cd)
616 {
617 return(0);
618 }
619
620 /* ARGSUSED */
621 void
622 mntvacnpollc(dev_t cd, int on)
623 {
624 }
625
626