p9100.c revision 1.56.6.1 1 /* $NetBSD: p9100.c,v 1.56.6.1 2012/11/20 03:02:32 tls Exp $ */
2
3 /*-
4 * Copyright (c) 1998, 2005, 2006 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas.
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*
33 * color display (p9100) driver.
34 *
35 * Does not handle interrupts, even though they can occur.
36 *
37 * XXX should defer colormap updates to vertical retrace interrupts
38 */
39
40 #include <sys/cdefs.h>
41 __KERNEL_RCSID(0, "$NetBSD: p9100.c,v 1.56.6.1 2012/11/20 03:02:32 tls Exp $");
42
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/buf.h>
46 #include <sys/device.h>
47 #include <sys/ioctl.h>
48 #include <sys/malloc.h>
49 #include <sys/mman.h>
50 #include <sys/tty.h>
51 #include <sys/conf.h>
52
53 #include <sys/bus.h>
54 #include <machine/autoconf.h>
55
56 #include <dev/sun/fbio.h>
57 #include <dev/sun/fbvar.h>
58 #include <dev/sun/btreg.h>
59 #include <dev/sun/btvar.h>
60
61 #include <dev/sbus/p9100reg.h>
62
63 #include <dev/sbus/sbusvar.h>
64
65 #include <dev/wscons/wsdisplayvar.h>
66 #include <dev/wscons/wsconsio.h>
67 #include <dev/wsfont/wsfont.h>
68 #include <dev/rasops/rasops.h>
69
70 #include <dev/wscons/wsdisplay_vconsvar.h>
71 #include <dev/wscons/wsdisplay_glyphcachevar.h>
72
73 #include "opt_wsemul.h"
74 #include "rasops_glue.h"
75 #include "opt_pnozz.h"
76
77 #include "ioconf.h"
78
79 #include "tctrl.h"
80 #if NTCTRL > 0
81 #include <machine/tctrl.h>
82 #include <sparc/dev/tctrlvar.h> /*XXX*/
83 #endif
84
85 #ifdef PNOZZ_DEBUG
86 #define DPRINTF aprint_normal
87 #else
88 #define DPRINTF while (0) aprint_normal
89 #endif
90
91 struct pnozz_cursor {
92 short pc_enable; /* cursor is enabled */
93 struct fbcurpos pc_pos; /* position */
94 struct fbcurpos pc_hot; /* hot-spot */
95 struct fbcurpos pc_size; /* size of mask & image fields */
96 uint32_t pc_bits[0x100]; /* space for mask & image bits */
97 unsigned char red[3], green[3];
98 unsigned char blue[3]; /* cursor palette */
99 };
100
101 /* per-display variables */
102 struct p9100_softc {
103 device_t sc_dev; /* base device */
104 struct fbdevice sc_fb; /* frame buffer device */
105
106 bus_space_tag_t sc_bustag;
107
108 bus_addr_t sc_ctl_paddr; /* phys address description */
109 bus_size_t sc_ctl_psize; /* for device mmap() */
110 bus_space_handle_t sc_ctl_memh; /* bus space handle */
111
112 bus_addr_t sc_fb_paddr; /* phys address description */
113 bus_size_t sc_fb_psize; /* for device mmap() */
114 #ifdef PNOZZ_USE_LATCH
115 bus_space_handle_t sc_fb_memh; /* bus space handle */
116 #endif
117 volatile uint32_t sc_junk;
118 uint32_t sc_mono_width; /* for setup_mono */
119
120 uint32_t sc_width;
121 uint32_t sc_height; /* panel width / height */
122 uint32_t sc_stride;
123 uint32_t sc_depth;
124 int sc_depthshift; /* blitter works on bytes not pixels */
125
126 union bt_cmap sc_cmap; /* Brooktree color map */
127
128 struct pnozz_cursor sc_cursor;
129
130 int sc_mode;
131 int sc_video, sc_powerstate;
132 uint32_t sc_bg;
133 volatile uint32_t sc_last_offset;
134 struct vcons_data vd;
135 uint8_t sc_dac_power;
136 glyphcache sc_gc;
137 };
138
139
140 static struct vcons_screen p9100_console_screen;
141
142 extern const u_char rasops_cmap[768];
143
144 struct wsscreen_descr p9100_defscreendesc = {
145 "default",
146 0, 0,
147 NULL,
148 8, 16,
149 WSSCREEN_WSCOLORS,
150 };
151
152 const struct wsscreen_descr *_p9100_scrlist[] = {
153 &p9100_defscreendesc,
154 /* XXX other formats, graphics screen? */
155 };
156
157 struct wsscreen_list p9100_screenlist = {
158 sizeof(_p9100_scrlist) / sizeof(struct wsscreen_descr *),
159 _p9100_scrlist
160 };
161
162 /* autoconfiguration driver */
163 static int p9100_sbus_match(device_t, cfdata_t, void *);
164 static void p9100_sbus_attach(device_t, device_t, void *);
165
166 static void p9100unblank(device_t);
167
168 CFATTACH_DECL_NEW(pnozz, sizeof(struct p9100_softc),
169 p9100_sbus_match, p9100_sbus_attach, NULL, NULL);
170
171 static dev_type_open(p9100open);
172 static dev_type_close(p9100close);
173 static dev_type_ioctl(p9100ioctl);
174 static dev_type_mmap(p9100mmap);
175
176 const struct cdevsw pnozz_cdevsw = {
177 p9100open, nullclose, noread, nowrite, p9100ioctl,
178 nostop, notty, nopoll, p9100mmap, nokqfilter,
179 };
180
181 /* frame buffer generic driver */
182 static struct fbdriver p9100fbdriver = {
183 p9100unblank, p9100open, p9100close, p9100ioctl, nopoll,
184 p9100mmap, nokqfilter
185 };
186
187 static void p9100loadcmap(struct p9100_softc *, int, int);
188 static void p9100_set_video(struct p9100_softc *, int);
189 static int p9100_get_video(struct p9100_softc *);
190 static uint32_t p9100_ctl_read_4(struct p9100_softc *, bus_size_t);
191 static void p9100_ctl_write_4(struct p9100_softc *, bus_size_t, uint32_t);
192 static uint8_t p9100_ramdac_read(struct p9100_softc *, bus_size_t);
193 static void p9100_ramdac_write(struct p9100_softc *, bus_size_t, uint8_t);
194
195 static uint8_t p9100_ramdac_read_ctl(struct p9100_softc *, int);
196 static void p9100_ramdac_write_ctl(struct p9100_softc *, int, uint8_t);
197
198 static void p9100_init_engine(struct p9100_softc *);
199 static int p9100_set_depth(struct p9100_softc *, int);
200
201 #if NWSDISPLAY > 0
202 static void p9100_sync(struct p9100_softc *);
203 static void p9100_bitblt(void *, int, int, int, int, int, int, int);
204 static void p9100_rectfill(void *, int, int, int, int, uint32_t);
205 static void p9100_clearscreen(struct p9100_softc *);
206
207 static void p9100_setup_mono(struct p9100_softc *, int, int, int, int,
208 uint32_t, uint32_t);
209 static void p9100_feed_line(struct p9100_softc *, int, uint8_t *);
210 static void p9100_set_color_reg(struct p9100_softc *, int, int32_t);
211
212 static void p9100_copycols(void *, int, int, int, int);
213 static void p9100_erasecols(void *, int, int, int, long);
214 static void p9100_copyrows(void *, int, int, int);
215 static void p9100_eraserows(void *, int, int, long);
216 /*static int p9100_mapchar(void *, int, u_int *);*/
217 static void p9100_putchar(void *, int, int, u_int, long);
218 static void p9100_putchar_aa(void *, int, int, u_int, long);
219 static void p9100_cursor(void *, int, int, int);
220
221 static int p9100_putcmap(struct p9100_softc *, struct wsdisplay_cmap *);
222 static int p9100_getcmap(struct p9100_softc *, struct wsdisplay_cmap *);
223 static int p9100_ioctl(void *, void *, u_long, void *, int, struct lwp *);
224 static paddr_t p9100_mmap(void *, void *, off_t, int);
225
226 /*static int p9100_load_font(void *, void *, struct wsdisplay_font *);*/
227
228 static void p9100_init_screen(void *, struct vcons_screen *, int,
229 long *);
230 #endif
231
232 static void p9100_init_cursor(struct p9100_softc *);
233
234 static void p9100_set_fbcursor(struct p9100_softc *);
235 static void p9100_setcursorcmap(struct p9100_softc *);
236 static void p9100_loadcursor(struct p9100_softc *);
237
238 #if 0
239 static int p9100_intr(void *);
240 #endif
241
242 /* power management stuff */
243 static bool p9100_suspend(device_t, const pmf_qual_t *);
244 static bool p9100_resume(device_t, const pmf_qual_t *);
245
246 #if NTCTRL > 0
247 static void p9100_set_extvga(void *, int);
248 #endif
249
250 #if NWSDISPLAY > 0
251 struct wsdisplay_accessops p9100_accessops = {
252 p9100_ioctl,
253 p9100_mmap,
254 NULL, /* vcons_alloc_screen */
255 NULL, /* vcons_free_screen */
256 NULL, /* vcons_show_screen */
257 NULL, /* load_font */
258 NULL, /* polls */
259 NULL, /* scroll */
260 };
261 #endif
262
263 #ifdef PNOZZ_USE_LATCH
264 #define PNOZZ_LATCH(sc, off) if(sc->sc_last_offset != (off & 0xffffff80)) { \
265 sc->sc_junk = bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, \
266 off); \
267 sc->sc_last_offset = off & 0xffffff80; }
268 #else
269 #define PNOZZ_LATCH(a, b)
270 #endif
271
272 /*
273 * Match a p9100.
274 */
275 static int
276 p9100_sbus_match(device_t parent, cfdata_t cf, void *aux)
277 {
278 struct sbus_attach_args *sa = aux;
279
280 if (strcmp("p9100", sa->sa_name) == 0)
281 return 100;
282 return 0;
283 }
284
285
286 /*
287 * Attach a display. We need to notice if it is the console, too.
288 */
289 static void
290 p9100_sbus_attach(device_t parent, device_t self, void *args)
291 {
292 struct p9100_softc *sc = device_private(self);
293 struct sbus_attach_args *sa = args;
294 struct fbdevice *fb = &sc->sc_fb;
295 int isconsole;
296 int node = sa->sa_node;
297 int i, j;
298 uint8_t ver, cmap[768];
299
300 #if NWSDISPLAY > 0
301 struct wsemuldisplaydev_attach_args aa;
302 struct rasops_info *ri;
303 unsigned long defattr;
304 #endif
305
306 sc->sc_last_offset = 0xffffffff;
307 sc->sc_dev = self;
308
309 /*
310 * When the ROM has mapped in a p9100 display, the address
311 * maps only the video RAM, so in any case we have to map the
312 * registers ourselves.
313 */
314
315 if (sa->sa_npromvaddrs != 0)
316 fb->fb_pixels = (void *)sa->sa_promvaddrs[0];
317
318 /* Remember cookies for p9100_mmap() */
319 sc->sc_bustag = sa->sa_bustag;
320
321 sc->sc_ctl_paddr = sbus_bus_addr(sa->sa_bustag,
322 sa->sa_reg[0].oa_space, sa->sa_reg[0].oa_base);
323 sc->sc_ctl_psize = 0x8000;/*(bus_size_t)sa->sa_reg[0].oa_size;*/
324
325 sc->sc_fb_paddr = sbus_bus_addr(sa->sa_bustag,
326 sa->sa_reg[2].oa_space, sa->sa_reg[2].oa_base);
327 sc->sc_fb_psize = (bus_size_t)sa->sa_reg[2].oa_size;
328
329 if (sbus_bus_map(sc->sc_bustag,
330 sa->sa_reg[0].oa_space,
331 sa->sa_reg[0].oa_base,
332 /*
333 * XXX for some reason the SBus resources don't cover
334 * all registers, so we just map what we need
335 */
336 0x8000,
337 0, &sc->sc_ctl_memh) != 0) {
338 printf("%s: cannot map control registers\n",
339 device_xname(self));
340 return;
341 }
342
343 /*
344 * we need to map the framebuffer even though we never write to it,
345 * thanks to some weirdness in the SPARCbook's SBus glue for the
346 * P9100 - all register accesses need to be 'latched in' whenever we
347 * go to another 0x80 aligned 'page' by reading the framebuffer at the
348 * same offset
349 * XXX apparently the latter isn't true - my SP3GX works fine without
350 */
351 #ifdef PNOZZ_USE_LATCH
352 if (fb->fb_pixels == NULL) {
353 if (sbus_bus_map(sc->sc_bustag,
354 sa->sa_reg[2].oa_space,
355 sa->sa_reg[2].oa_base,
356 sc->sc_fb_psize,
357 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_LARGE,
358 &sc->sc_fb_memh) != 0) {
359 printf("%s: cannot map framebuffer\n",
360 device_xname(self));
361 return;
362 }
363 fb->fb_pixels = (char *)sc->sc_fb_memh;
364 } else {
365 sc->sc_fb_memh = (bus_space_handle_t) fb->fb_pixels;
366 }
367 #endif
368 sc->sc_width = prom_getpropint(node, "width", 800);
369 sc->sc_height = prom_getpropint(node, "height", 600);
370 sc->sc_depth = prom_getpropint(node, "depth", 8) >> 3;
371
372 sc->sc_stride = prom_getpropint(node, "linebytes",
373 sc->sc_width * sc->sc_depth);
374
375 fb->fb_driver = &p9100fbdriver;
376 fb->fb_device = sc->sc_dev;
377 fb->fb_flags = device_cfdata(sc->sc_dev)->cf_flags & FB_USERMASK;
378 #ifdef PNOZZ_EMUL_CG3
379 fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
380 #else
381 fb->fb_type.fb_type = FBTYPE_P9100;
382 #endif
383 fb->fb_pixels = NULL;
384
385 sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
386
387 isconsole = fb_is_console(node);
388 #if 0
389 if (!isconsole) {
390 aprint_normal("\n");
391 aprint_error_dev(self, "fatal error: PROM didn't configure device\n");
392 return;
393 }
394 #endif
395
396 fb->fb_type.fb_depth = 8;
397 sc->sc_depth = 1;
398 sc->sc_depthshift = 0;
399
400 /* check the RAMDAC */
401 ver = p9100_ramdac_read_ctl(sc, DAC_VERSION);
402
403 p9100_init_engine(sc);
404 p9100_set_depth(sc, 8);
405
406 fb_setsize_obp(fb, fb->fb_type.fb_depth, sc->sc_width, sc->sc_height,
407 node);
408
409 #if 0
410 bus_intr_establish(sc->sc_bustag, sa->sa_pri, IPL_BIO,
411 p9100_intr, sc);
412 #endif
413
414 fb->fb_type.fb_cmsize = prom_getpropint(node, "cmsize", 256);
415 if ((1 << fb->fb_type.fb_depth) != fb->fb_type.fb_cmsize)
416 printf(", %d entry colormap", fb->fb_type.fb_cmsize);
417
418 /* make sure we are not blanked */
419 if (isconsole)
420 p9100_set_video(sc, 1);
421
422 /* register with power management */
423 sc->sc_video = 1;
424 sc->sc_powerstate = PWR_RESUME;
425 if (!pmf_device_register(self, p9100_suspend, p9100_resume)) {
426 panic("%s: could not register with PMF",
427 device_xname(sc->sc_dev));
428 }
429
430 if (isconsole) {
431 printf(" (console)\n");
432 #ifdef RASTERCONSOLE
433 /*p9100loadcmap(sc, 255, 1);*/
434 fbrcons_init(fb);
435 #endif
436 } else
437 printf("\n");
438
439 #if NWSDISPLAY > 0
440 wsfont_init();
441
442 #ifdef PNOZZ_DEBUG
443 /* make the glyph cache visible */
444 sc->sc_height -= 100;
445 #endif
446
447 sc->sc_gc.gc_bitblt = p9100_bitblt;
448 sc->sc_gc.gc_blitcookie = sc;
449 sc->sc_gc.gc_rop = ROP_SRC;
450
451 vcons_init(&sc->vd, sc, &p9100_defscreendesc, &p9100_accessops);
452 sc->vd.init_screen = p9100_init_screen;
453
454 vcons_init_screen(&sc->vd, &p9100_console_screen, 1, &defattr);
455 p9100_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
456
457 /* Initialize the default color map. */
458 rasops_get_cmap(&p9100_console_screen.scr_ri, cmap, 768);
459
460 j = 0;
461 for (i = 0; i < 256; i++) {
462 sc->sc_cmap.cm_map[i][0] = cmap[j];
463 j++;
464 sc->sc_cmap.cm_map[i][1] = cmap[j];
465 j++;
466 sc->sc_cmap.cm_map[i][2] = cmap[j];
467 j++;
468 }
469 p9100loadcmap(sc, 0, 256);
470
471 sc->sc_bg = (defattr >> 16) & 0xff;
472 p9100_clearscreen(sc);
473
474 ri = &p9100_console_screen.scr_ri;
475
476 p9100_defscreendesc.nrows = ri->ri_rows;
477 p9100_defscreendesc.ncols = ri->ri_cols;
478 p9100_defscreendesc.textops = &ri->ri_ops;
479 p9100_defscreendesc.capabilities = ri->ri_caps;
480
481 glyphcache_init(&sc->sc_gc, sc->sc_height + 5,
482 (0x200000 / sc->sc_stride) - sc->sc_height - 5,
483 sc->sc_width,
484 ri->ri_font->fontwidth,
485 ri->ri_font->fontheight,
486 defattr);
487
488 if(isconsole) {
489 wsdisplay_cnattach(&p9100_defscreendesc, ri, 0, 0, defattr);
490 vcons_replay_msgbuf(&p9100_console_screen);
491 }
492
493 aa.console = isconsole;
494 aa.scrdata = &p9100_screenlist;
495 aa.accessops = &p9100_accessops;
496 aa.accesscookie = &sc->vd;
497
498 config_found(self, &aa, wsemuldisplaydevprint);
499 #endif
500 fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
501 printf("%s: rev %d / %x, %dx%d, depth %d mem %x\n",
502 device_xname(self),
503 (i & 7), ver, fb->fb_type.fb_width, fb->fb_type.fb_height,
504 fb->fb_type.fb_depth, (unsigned int)sc->sc_fb_psize);
505 /* cursor sprite handling */
506 p9100_init_cursor(sc);
507
508 /* attach the fb */
509 fb_attach(fb, isconsole);
510
511 #if NTCTRL > 0
512 /* register callback for external monitor status change */
513 tadpole_register_callback(p9100_set_extvga, sc);
514 #endif
515 }
516
517 int
518 p9100open(dev_t dev, int flags, int mode, struct lwp *l)
519 {
520 int unit = minor(dev);
521
522 if (device_lookup(&pnozz_cd, unit) == NULL)
523 return (ENXIO);
524 return (0);
525 }
526
527 int
528 p9100close(dev_t dev, int flags, int mode, struct lwp *l)
529 {
530 struct p9100_softc *sc = device_lookup_private(&pnozz_cd, minor(dev));
531
532 #if NWSDISPLAY > 0
533 p9100_init_engine(sc);
534 p9100_set_depth(sc, 8);
535 p9100loadcmap(sc, 0, 256);
536 p9100_clearscreen(sc);
537 glyphcache_wipe(&sc->sc_gc);
538 vcons_redraw_screen(sc->vd.active);
539 #endif
540 return 0;
541 }
542
543 int
544 p9100ioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
545 {
546 struct p9100_softc *sc = device_lookup_private(&pnozz_cd, minor(dev));
547 struct fbgattr *fba;
548 int error, v;
549
550 switch (cmd) {
551
552 case FBIOGTYPE:
553 *(struct fbtype *)data = sc->sc_fb.fb_type;
554 break;
555
556 case FBIOGATTR:
557 fba = (struct fbgattr *)data;
558 fba->real_type = sc->sc_fb.fb_type.fb_type;
559 fba->owner = 0; /* XXX ??? */
560 fba->fbtype = sc->sc_fb.fb_type;
561 fba->sattr.flags = 0;
562 fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
563 fba->sattr.dev_specific[0] = -1;
564 fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
565 fba->emu_types[1] = -1;
566 break;
567
568 case FBIOGETCMAP:
569 #define p ((struct fbcmap *)data)
570 return (bt_getcmap(p, &sc->sc_cmap, 256, 1));
571
572 case FBIOPUTCMAP:
573 /* copy to software map */
574 error = bt_putcmap(p, &sc->sc_cmap, 256, 1);
575 if (error)
576 return (error);
577 /* now blast them into the chip */
578 /* XXX should use retrace interrupt */
579 p9100loadcmap(sc, p->index, p->count);
580 #undef p
581 break;
582
583 case FBIOGVIDEO:
584 *(int *)data = p9100_get_video(sc);
585 break;
586
587 case FBIOSVIDEO:
588 p9100_set_video(sc, *(int *)data);
589 break;
590
591 /* these are for both FBIOSCURSOR and FBIOGCURSOR */
592 #define p ((struct fbcursor *)data)
593 #define pc (&sc->sc_cursor)
594
595 case FBIOGCURSOR:
596 p->set = FB_CUR_SETALL; /* close enough, anyway */
597 p->enable = pc->pc_enable;
598 p->pos = pc->pc_pos;
599 p->hot = pc->pc_hot;
600 p->size = pc->pc_size;
601
602 if (p->image != NULL) {
603 error = copyout(pc->pc_bits, p->image, 0x200);
604 if (error)
605 return error;
606 error = copyout(&pc->pc_bits[0x80], p->mask, 0x200);
607 if (error)
608 return error;
609 }
610
611 p->cmap.index = 0;
612 p->cmap.count = 3;
613 if (p->cmap.red != NULL) {
614 copyout(pc->red, p->cmap.red, 3);
615 copyout(pc->green, p->cmap.green, 3);
616 copyout(pc->blue, p->cmap.blue, 3);
617 }
618 break;
619
620 case FBIOSCURSOR:
621 {
622 int count;
623 uint32_t image[0x80], mask[0x80];
624 uint8_t red[3], green[3], blue[3];
625
626 v = p->set;
627 if (v & FB_CUR_SETCMAP) {
628 error = copyin(p->cmap.red, red, 3);
629 error |= copyin(p->cmap.green, green, 3);
630 error |= copyin(p->cmap.blue, blue, 3);
631 if (error)
632 return error;
633 }
634 if (v & FB_CUR_SETSHAPE) {
635 if (p->size.x > 64 || p->size.y > 64)
636 return EINVAL;
637 memset(&mask, 0, 0x200);
638 memset(&image, 0, 0x200);
639 count = p->size.y * 8;
640 error = copyin(p->image, image, count);
641 if (error)
642 return error;
643 error = copyin(p->mask, mask, count);
644 if (error)
645 return error;
646 }
647
648 /* parameters are OK; do it */
649 if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) {
650 if (v & FB_CUR_SETCUR)
651 pc->pc_enable = p->enable;
652 if (v & FB_CUR_SETPOS)
653 pc->pc_pos = p->pos;
654 if (v & FB_CUR_SETHOT)
655 pc->pc_hot = p->hot;
656 p9100_set_fbcursor(sc);
657 }
658
659 if (v & FB_CUR_SETCMAP) {
660 memcpy(pc->red, red, 3);
661 memcpy(pc->green, green, 3);
662 memcpy(pc->blue, blue, 3);
663 p9100_setcursorcmap(sc);
664 }
665
666 if (v & FB_CUR_SETSHAPE) {
667 memcpy(pc->pc_bits, image, 0x200);
668 memcpy(&pc->pc_bits[0x80], mask, 0x200);
669 p9100_loadcursor(sc);
670 }
671 }
672 break;
673
674 #undef p
675 #undef cc
676
677 case FBIOGCURPOS:
678 *(struct fbcurpos *)data = sc->sc_cursor.pc_pos;
679 break;
680
681 case FBIOSCURPOS:
682 sc->sc_cursor.pc_pos = *(struct fbcurpos *)data;
683 p9100_set_fbcursor(sc);
684 break;
685
686 case FBIOGCURMAX:
687 /* max cursor size is 64x64 */
688 ((struct fbcurpos *)data)->x = 64;
689 ((struct fbcurpos *)data)->y = 64;
690 break;
691
692 default:
693 return (ENOTTY);
694 }
695 return (0);
696 }
697
698 static uint32_t
699 p9100_ctl_read_4(struct p9100_softc *sc, bus_size_t off)
700 {
701
702 PNOZZ_LATCH(sc, off);
703 return bus_space_read_4(sc->sc_bustag, sc->sc_ctl_memh, off);
704 }
705
706 static void
707 p9100_ctl_write_4(struct p9100_softc *sc, bus_size_t off, uint32_t v)
708 {
709
710 PNOZZ_LATCH(sc, off);
711 bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off, v);
712 }
713
714 /* initialize the drawing engine */
715 static void
716 p9100_init_engine(struct p9100_softc *sc)
717 {
718 /* reset clipping rectangles */
719 uint32_t rmax = ((sc->sc_width & 0x3fff) << 16) |
720 (sc->sc_height & 0x3fff);
721
722 sc->sc_last_offset = 0xffffffff;
723
724 p9100_ctl_write_4(sc, WINDOW_OFFSET, 0);
725 p9100_ctl_write_4(sc, WINDOW_MIN, 0);
726 p9100_ctl_write_4(sc, WINDOW_MAX, rmax);
727 p9100_ctl_write_4(sc, BYTE_CLIP_MIN, 0);
728 p9100_ctl_write_4(sc, BYTE_CLIP_MAX, 0x3fff3fff);
729 p9100_ctl_write_4(sc, DRAW_MODE, 0);
730 p9100_ctl_write_4(sc, PLANE_MASK, 0xffffffff);
731 p9100_ctl_write_4(sc, PATTERN0, 0xffffffff);
732 p9100_ctl_write_4(sc, PATTERN1, 0xffffffff);
733 p9100_ctl_write_4(sc, PATTERN2, 0xffffffff);
734 p9100_ctl_write_4(sc, PATTERN3, 0xffffffff);
735
736 }
737
738 /* we only need these in the wsdisplay case */
739 #if NWSDISPLAY > 0
740
741 /* wait until the engine is idle */
742 static void
743 p9100_sync(struct p9100_softc *sc)
744 {
745 while((p9100_ctl_read_4(sc, ENGINE_STATUS) &
746 (ENGINE_BUSY | BLITTER_BUSY)) != 0);
747 }
748
749 static void
750 p9100_set_color_reg(struct p9100_softc *sc, int reg, int32_t col)
751 {
752 uint32_t out;
753
754 switch(sc->sc_depth)
755 {
756 case 1: /* 8 bit */
757 out = (col << 8) | col;
758 out |= out << 16;
759 break;
760 case 2: /* 16 bit */
761 out = col | (col << 16);
762 break;
763 default:
764 out = col;
765 }
766 p9100_ctl_write_4(sc, reg, out);
767 }
768
769 /* screen-to-screen blit */
770 static void
771 p9100_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
772 int he, int rop)
773 {
774 struct p9100_softc *sc = cookie;
775 uint32_t src, dst, srcw, dstw;
776
777 sc->sc_last_offset = 0xffffffff;
778
779 src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
780 dst = ((xd & 0x3fff) << 16) | (yd & 0x3fff);
781 srcw = (((xs + wi - 1) & 0x3fff) << 16) | ((ys + he - 1) & 0x3fff);
782 dstw = (((xd + wi - 1) & 0x3fff) << 16) | ((yd + he - 1) & 0x3fff);
783
784 p9100_sync(sc);
785
786 p9100_ctl_write_4(sc, RASTER_OP, rop);
787 p9100_ctl_write_4(sc, BYTE_CLIP_MAX, 0x3fff3fff);
788
789 p9100_ctl_write_4(sc, ABS_XY0, src << sc->sc_depthshift);
790 p9100_ctl_write_4(sc, ABS_XY1, srcw << sc->sc_depthshift);
791 p9100_ctl_write_4(sc, ABS_XY2, dst << sc->sc_depthshift);
792 p9100_ctl_write_4(sc, ABS_XY3, dstw << sc->sc_depthshift);
793
794 sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_BLIT);
795 }
796
797 /* solid rectangle fill */
798 static void
799 p9100_rectfill(void *cookie, int xs, int ys, int wi, int he, uint32_t col)
800 {
801 struct p9100_softc *sc = cookie;
802 uint32_t src, srcw;
803
804 sc->sc_last_offset = 0xffffffff;
805
806 src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
807 srcw = (((xs + wi) & 0x3fff) << 16) | ((ys + he) & 0x3fff);
808 p9100_sync(sc);
809 p9100_ctl_write_4(sc, BYTE_CLIP_MAX, 0x3fff3fff);
810 p9100_set_color_reg(sc, FOREGROUND_COLOR, col);
811 p9100_set_color_reg(sc, BACKGROUND_COLOR, col);
812 p9100_ctl_write_4(sc, RASTER_OP, ROP_PAT);
813 p9100_ctl_write_4(sc, COORD_INDEX, 0);
814 p9100_ctl_write_4(sc, RECT_RTW_XY, src);
815 p9100_ctl_write_4(sc, RECT_RTW_XY, srcw);
816 sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_QUAD);
817 }
818
819 /* setup for mono->colour expansion */
820 static void
821 p9100_setup_mono(struct p9100_softc *sc, int x, int y, int wi, int he,
822 uint32_t fg, uint32_t bg)
823 {
824
825 sc->sc_last_offset = 0xffffffff;
826
827 p9100_sync(sc);
828 /*
829 * this doesn't make any sense to me either, but for some reason the
830 * chip applies the foreground colour to 0 pixels
831 */
832
833 p9100_set_color_reg(sc,FOREGROUND_COLOR,bg);
834 p9100_set_color_reg(sc,BACKGROUND_COLOR,fg);
835
836 p9100_ctl_write_4(sc, BYTE_CLIP_MAX, 0x3fff3fff);
837 p9100_ctl_write_4(sc, RASTER_OP, ROP_SRC);
838 p9100_ctl_write_4(sc, ABS_X0, x);
839 p9100_ctl_write_4(sc, ABS_XY1, (x << 16) | (y & 0xFFFFL));
840 p9100_ctl_write_4(sc, ABS_X2, (x + wi));
841 p9100_ctl_write_4(sc, ABS_Y3, he);
842 /* now feed the data into the chip */
843 sc->sc_mono_width = wi;
844 }
845
846 /* write monochrome data to the screen through the blitter */
847 static void
848 p9100_feed_line(struct p9100_softc *sc, int count, uint8_t *data)
849 {
850 int i;
851 uint32_t latch = 0, bork;
852 int shift = 24;
853 int to_go = sc->sc_mono_width;
854
855 PNOZZ_LATCH(sc, PIXEL_1);
856
857 for (i = 0; i < count; i++) {
858 bork = data[i];
859 latch |= (bork << shift);
860 if (shift == 0) {
861 /* check how many bits are significant */
862 if (to_go > 31) {
863 bus_space_write_4(sc->sc_bustag,
864 sc->sc_ctl_memh,
865 (PIXEL_1 + (31 << 2)), latch);
866 to_go -= 32;
867 } else
868 {
869 bus_space_write_4(sc->sc_bustag,
870 sc->sc_ctl_memh,
871 (PIXEL_1 + ((to_go - 1) << 2)), latch);
872 to_go = 0;
873 }
874 latch = 0;
875 shift = 24;
876 } else
877 shift -= 8;
878 }
879 if (shift != 24)
880 p9100_ctl_write_4(sc, (PIXEL_1 + ((to_go - 1) << 2)), latch);
881 }
882
883 static void
884 p9100_clearscreen(struct p9100_softc *sc)
885 {
886
887 p9100_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, sc->sc_bg);
888 }
889 #endif /* NWSDISPLAY > 0 */
890
891 static uint8_t
892 p9100_ramdac_read(struct p9100_softc *sc, bus_size_t off)
893 {
894
895 sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
896 return ((bus_space_read_4(sc->sc_bustag,
897 sc->sc_ctl_memh, off) >> 16) & 0xff);
898 }
899
900 static void
901 p9100_ramdac_write(struct p9100_softc *sc, bus_size_t off, uint8_t v)
902 {
903
904 sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
905 bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off,
906 ((uint32_t)v) << 16);
907 }
908
909 static uint8_t
910 p9100_ramdac_read_ctl(struct p9100_softc *sc, int off)
911 {
912 p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
913 p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
914 return p9100_ramdac_read(sc, DAC_INDX_DATA);
915 }
916
917 static void
918 p9100_ramdac_write_ctl(struct p9100_softc *sc, int off, uint8_t val)
919 {
920 p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
921 p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
922 p9100_ramdac_write(sc, DAC_INDX_DATA, val);
923 }
924
925 /*
926 * Undo the effect of an FBIOSVIDEO that turns the video off.
927 */
928 static void
929 p9100unblank(device_t dev)
930 {
931 struct p9100_softc *sc = device_private(dev);
932
933 p9100_set_video(sc, 1);
934
935 /*
936 * Check if we're in terminal mode. If not force the console screen
937 * to front so we can see ddb, panic messages and so on
938 */
939 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) {
940 sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
941 if (sc->vd.active != &p9100_console_screen) {
942 SCREEN_INVISIBLE(sc->vd.active);
943 sc->vd.active = &p9100_console_screen;
944 SCREEN_VISIBLE(&p9100_console_screen);
945 }
946 p9100_init_engine(sc);
947 p9100_set_depth(sc, 8);
948 vcons_redraw_screen(&p9100_console_screen);
949 }
950 }
951
952 static void
953 p9100_set_video(struct p9100_softc *sc, int enable)
954 {
955 uint32_t v = p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1);
956
957 if (enable)
958 v |= VIDEO_ENABLED;
959 else
960 v &= ~VIDEO_ENABLED;
961 p9100_ctl_write_4(sc, SCRN_RPNT_CTL_1, v);
962 #if NTCTRL > 0
963 /* Turn On/Off the TFT if we know how.
964 */
965 tadpole_set_video(enable);
966 #endif
967 }
968
969 static int
970 p9100_get_video(struct p9100_softc *sc)
971 {
972 return (p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1) & VIDEO_ENABLED) != 0;
973 }
974
975 static bool
976 p9100_suspend(device_t dev, const pmf_qual_t *qual)
977 {
978 struct p9100_softc *sc = device_private(dev);
979
980 if (sc->sc_powerstate == PWR_SUSPEND)
981 return TRUE;
982
983 sc->sc_video = p9100_get_video(sc);
984 sc->sc_dac_power = p9100_ramdac_read_ctl(sc, DAC_POWER_MGT);
985 p9100_ramdac_write_ctl(sc, DAC_POWER_MGT,
986 DAC_POWER_SCLK_DISABLE |
987 DAC_POWER_DDOT_DISABLE |
988 DAC_POWER_SYNC_DISABLE |
989 DAC_POWER_ICLK_DISABLE |
990 DAC_POWER_IPWR_DISABLE);
991 p9100_set_video(sc, 0);
992 sc->sc_powerstate = PWR_SUSPEND;
993 return TRUE;
994 }
995
996 static bool
997 p9100_resume(device_t dev, const pmf_qual_t *qual)
998 {
999 struct p9100_softc *sc = device_private(dev);
1000
1001 if (sc->sc_powerstate == PWR_RESUME)
1002 return TRUE;
1003
1004 p9100_ramdac_write_ctl(sc, DAC_POWER_MGT, sc->sc_dac_power);
1005 p9100_set_video(sc, sc->sc_video);
1006
1007 sc->sc_powerstate = PWR_RESUME;
1008 return TRUE;
1009 }
1010
1011 /*
1012 * Load a subset of the current (new) colormap into the IBM RAMDAC.
1013 */
1014 static void
1015 p9100loadcmap(struct p9100_softc *sc, int start, int ncolors)
1016 {
1017 int i;
1018 sc->sc_last_offset = 0xffffffff;
1019
1020 p9100_ramdac_write(sc, DAC_CMAP_WRIDX, start);
1021
1022 for (i=0;i<ncolors;i++) {
1023 p9100_ramdac_write(sc, DAC_CMAP_DATA,
1024 sc->sc_cmap.cm_map[i + start][0]);
1025 p9100_ramdac_write(sc, DAC_CMAP_DATA,
1026 sc->sc_cmap.cm_map[i + start][1]);
1027 p9100_ramdac_write(sc, DAC_CMAP_DATA,
1028 sc->sc_cmap.cm_map[i + start][2]);
1029 }
1030 }
1031
1032 /*
1033 * Return the address that would map the given device at the given
1034 * offset, allowing for the given protection, or return -1 for error.
1035 */
1036 static paddr_t
1037 p9100mmap(dev_t dev, off_t off, int prot)
1038 {
1039 struct p9100_softc *sc = device_lookup_private(&pnozz_cd, minor(dev));
1040
1041 if (off & PGOFSET)
1042 panic("p9100mmap");
1043 if (off < 0)
1044 return (-1);
1045
1046 #ifdef PNOZZ_EMUL_CG3
1047 #define CG3_MMAP_OFFSET 0x04000000
1048 /* Make Xsun think we are a CG3 (SUN3COLOR)
1049 */
1050 if (off >= CG3_MMAP_OFFSET && off < CG3_MMAP_OFFSET + sc->sc_fb_psize) {
1051 off -= CG3_MMAP_OFFSET;
1052 return (bus_space_mmap(sc->sc_bustag,
1053 sc->sc_fb_paddr,
1054 off,
1055 prot,
1056 BUS_SPACE_MAP_LINEAR));
1057 }
1058 #endif
1059
1060 if (off >= sc->sc_fb_psize + sc->sc_ctl_psize/* + sc->sc_cmd_psize*/)
1061 return (-1);
1062
1063 if (off < sc->sc_fb_psize) {
1064 return (bus_space_mmap(sc->sc_bustag,
1065 sc->sc_fb_paddr,
1066 off,
1067 prot,
1068 BUS_SPACE_MAP_LINEAR));
1069 }
1070
1071 off -= sc->sc_fb_psize;
1072 if (off < sc->sc_ctl_psize) {
1073 return (bus_space_mmap(sc->sc_bustag,
1074 sc->sc_ctl_paddr,
1075 off,
1076 prot,
1077 BUS_SPACE_MAP_LINEAR));
1078 }
1079
1080 return EINVAL;
1081 }
1082
1083 /* wscons stuff */
1084 #if NWSDISPLAY > 0
1085
1086 static void
1087 p9100_cursor(void *cookie, int on, int row, int col)
1088 {
1089 struct rasops_info *ri = cookie;
1090 struct vcons_screen *scr = ri->ri_hw;
1091 struct p9100_softc *sc = scr->scr_cookie;
1092 int x, y, wi,he;
1093
1094 wi = ri->ri_font->fontwidth;
1095 he = ri->ri_font->fontheight;
1096
1097 if (ri->ri_flg & RI_CURSOR) {
1098 x = ri->ri_ccol * wi + ri->ri_xorigin;
1099 y = ri->ri_crow * he + ri->ri_yorigin;
1100 p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
1101 ri->ri_flg &= ~RI_CURSOR;
1102 }
1103
1104 ri->ri_crow = row;
1105 ri->ri_ccol = col;
1106
1107 if (on)
1108 {
1109 x = ri->ri_ccol * wi + ri->ri_xorigin;
1110 y = ri->ri_crow * he + ri->ri_yorigin;
1111 p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
1112 ri->ri_flg |= RI_CURSOR;
1113 }
1114 }
1115
1116 #if 0
1117 static int
1118 p9100_mapchar(void *cookie, int uni, u_int *index)
1119 {
1120 return 0;
1121 }
1122 #endif
1123
1124 static void
1125 p9100_putchar(void *cookie, int row, int col, u_int c, long attr)
1126 {
1127 struct rasops_info *ri = cookie;
1128 struct wsdisplay_font *font = PICK_FONT(ri, c);
1129 struct vcons_screen *scr = ri->ri_hw;
1130 struct p9100_softc *sc = scr->scr_cookie;
1131
1132 int fg, bg, i;
1133 uint8_t *data;
1134 int x, y, wi, he;
1135
1136 wi = font->fontwidth;
1137 he = font->fontheight;
1138
1139 if (!CHAR_IN_FONT(c, font))
1140 return;
1141
1142 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xff];
1143 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xff];
1144 x = ri->ri_xorigin + col * wi;
1145 y = ri->ri_yorigin + row * he;
1146
1147 if (c == 0x20) {
1148 p9100_rectfill(sc, x, y, wi, he, bg);
1149 } else {
1150 data = WSFONT_GLYPH(c, font);
1151
1152 p9100_setup_mono(sc, x, y, wi, 1, fg, bg);
1153 for (i = 0; i < he; i++) {
1154 p9100_feed_line(sc, font->stride,
1155 data);
1156 data += font->stride;
1157 }
1158 }
1159 }
1160
1161 static void
1162 p9100_putchar_aa(void *cookie, int row, int col, u_int c, long attr)
1163 {
1164 struct rasops_info *ri = cookie;
1165 struct wsdisplay_font *font = PICK_FONT(ri, c);
1166 struct vcons_screen *scr = ri->ri_hw;
1167 struct p9100_softc *sc = scr->scr_cookie;
1168 uint32_t bg, latch = 0, bg8, fg8, pixel;
1169 int i, j, x, y, wi, he, r, g, b, aval, rwi;
1170 int r1, g1, b1, r0, g0, b0, fgo, bgo;
1171 uint8_t *data8;
1172 int rv;
1173
1174 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
1175 return;
1176
1177 if (!CHAR_IN_FONT(c, font))
1178 return;
1179
1180 wi = font->fontwidth;
1181 rwi = (wi + 3) & ~3;
1182 he = font->fontheight;
1183
1184 bg = ri->ri_devcmap[(attr >> 16) & 0xf];
1185 x = ri->ri_xorigin + col * wi;
1186 y = ri->ri_yorigin + row * he;
1187
1188 if (c == 0x20) {
1189 p9100_rectfill(sc, x, y, wi, he, bg);
1190 return;
1191 }
1192
1193 rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
1194 if (rv == GC_OK)
1195 return;
1196
1197 data8 = WSFONT_GLYPH(c, font);
1198
1199 p9100_sync(sc);
1200
1201 p9100_ctl_write_4(sc, RASTER_OP, ROP_SRC);
1202 p9100_ctl_write_4(sc, ABS_X0, x);
1203 p9100_ctl_write_4(sc, ABS_XY1, (x << 16) | (y & 0xFFFFL));
1204 p9100_ctl_write_4(sc, ABS_X2, (x + rwi));
1205 p9100_ctl_write_4(sc, ABS_Y3, 1);
1206 p9100_ctl_write_4(sc, BYTE_CLIP_MAX, ((x + wi - 1) << 16) | 0x3fff);
1207
1208 /*
1209 * we need the RGB colours here, so get offsets into rasops_cmap
1210 */
1211 fgo = ((attr >> 24) & 0xf) * 3;
1212 bgo = ((attr >> 16) & 0xf) * 3;
1213
1214 r0 = rasops_cmap[bgo];
1215 r1 = rasops_cmap[fgo];
1216 g0 = rasops_cmap[bgo + 1];
1217 g1 = rasops_cmap[fgo + 1];
1218 b0 = rasops_cmap[bgo + 2];
1219 b1 = rasops_cmap[fgo + 2];
1220 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6))
1221 bg8 = R3G3B2(r0, g0, b0);
1222 fg8 = R3G3B2(r1, g1, b1);
1223
1224 //r128fb_wait(sc, 16);
1225
1226 for (i = 0; i < he; i++) {
1227 for (j = 0; j < wi; j++) {
1228 aval = *data8;
1229 if (aval == 0) {
1230 pixel = bg8;
1231 } else if (aval == 255) {
1232 pixel = fg8;
1233 } else {
1234 r = aval * r1 + (255 - aval) * r0;
1235 g = aval * g1 + (255 - aval) * g0;
1236 b = aval * b1 + (255 - aval) * b0;
1237 pixel = ((r & 0xe000) >> 8) |
1238 ((g & 0xe000) >> 11) |
1239 ((b & 0xc000) >> 14);
1240 }
1241 latch = (latch << 8) | pixel;
1242 /* write in 32bit chunks */
1243 if ((j & 3) == 3) {
1244 bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
1245 COMMAND_PIXEL8, latch);
1246 latch = 0;
1247 }
1248 data8++;
1249 }
1250 /* if we have pixels left in latch write them out */
1251 if ((j & 3) != 0) {
1252 latch = latch << ((4 - (j & 3)) << 3);
1253 bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
1254 COMMAND_PIXEL8, latch);
1255 }
1256 }
1257 if (rv == GC_ADD) {
1258 glyphcache_add(&sc->sc_gc, c, x, y);
1259 }
1260 }
1261
1262 /*
1263 * wsdisplay_accessops
1264 */
1265
1266 int
1267 p9100_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
1268 struct lwp *l)
1269 {
1270 struct vcons_data *vd = v;
1271 struct p9100_softc *sc = vd->cookie;
1272 struct wsdisplay_fbinfo *wdf;
1273 struct vcons_screen *ms = vd->active;
1274
1275 switch (cmd) {
1276 case WSDISPLAYIO_GTYPE:
1277 *(u_int *)data = WSDISPLAY_TYPE_SB_P9100;
1278 return 0;
1279
1280 case FBIOGVIDEO:
1281 case WSDISPLAYIO_GVIDEO:
1282 *(int *)data = p9100_get_video(sc);
1283 return 0;
1284
1285 case WSDISPLAYIO_SVIDEO:
1286 case FBIOSVIDEO:
1287 p9100_set_video(sc, *(int *)data);
1288 return 0;
1289
1290 case WSDISPLAYIO_GINFO:
1291 wdf = (void *)data;
1292 wdf->height = ms->scr_ri.ri_height;
1293 wdf->width = ms->scr_ri.ri_width;
1294 wdf->depth = ms->scr_ri.ri_depth;
1295 wdf->cmsize = 256;
1296 return 0;
1297
1298 case WSDISPLAYIO_GETCMAP:
1299 return p9100_getcmap(sc, (struct wsdisplay_cmap *)data);
1300
1301 case WSDISPLAYIO_PUTCMAP:
1302 return p9100_putcmap(sc, (struct wsdisplay_cmap *)data);
1303
1304 case WSDISPLAYIO_SMODE:
1305 {
1306 int new_mode = *(int*)data;
1307 if (new_mode != sc->sc_mode)
1308 {
1309 sc->sc_mode = new_mode;
1310 if (new_mode == WSDISPLAYIO_MODE_EMUL)
1311 {
1312 p9100_init_engine(sc);
1313 p9100_set_depth(sc, 8);
1314 p9100loadcmap(sc, 0, 256);
1315 p9100_clearscreen(sc);
1316 glyphcache_wipe(&sc->sc_gc);
1317 vcons_redraw_screen(ms);
1318 }
1319 }
1320 }
1321 }
1322 return EPASSTHROUGH;
1323 }
1324
1325 static paddr_t
1326 p9100_mmap(void *v, void *vs, off_t offset, int prot)
1327 {
1328 struct vcons_data *vd = v;
1329 struct p9100_softc *sc = vd->cookie;
1330 paddr_t pa;
1331
1332 /* 'regular' framebuffer mmap()ing */
1333 if (offset < sc->sc_fb_psize) {
1334 pa = bus_space_mmap(sc->sc_bustag, sc->sc_fb_paddr + offset, 0,
1335 prot, BUS_SPACE_MAP_LINEAR);
1336 return pa;
1337 }
1338
1339 if ((offset >= sc->sc_fb_paddr) && (offset < (sc->sc_fb_paddr +
1340 sc->sc_fb_psize))) {
1341 pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
1342 BUS_SPACE_MAP_LINEAR);
1343 return pa;
1344 }
1345
1346 if ((offset >= sc->sc_ctl_paddr) && (offset < (sc->sc_ctl_paddr +
1347 sc->sc_ctl_psize))) {
1348 pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
1349 BUS_SPACE_MAP_LINEAR);
1350 return pa;
1351 }
1352
1353 return -1;
1354 }
1355
1356 static void
1357 p9100_init_screen(void *cookie, struct vcons_screen *scr,
1358 int existing, long *defattr)
1359 {
1360 struct p9100_softc *sc = cookie;
1361 struct rasops_info *ri = &scr->scr_ri;
1362
1363 ri->ri_depth = sc->sc_depth << 3;
1364 ri->ri_width = sc->sc_width;
1365 ri->ri_height = sc->sc_height;
1366 ri->ri_stride = sc->sc_stride;
1367 ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
1368 if (ri->ri_depth == 8)
1369 ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA;
1370
1371 #ifdef PNOZZ_USE_LATCH
1372 ri->ri_bits = bus_space_vaddr(sc->sc_bustag, sc->sc_fb_memh);
1373 DPRINTF("addr: %08lx\n",(ulong)ri->ri_bits);
1374 #endif
1375
1376 rasops_init(ri, 0, 0);
1377 ri->ri_caps = WSSCREEN_WSCOLORS;
1378 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
1379 sc->sc_width / ri->ri_font->fontwidth);
1380
1381 /* enable acceleration */
1382 ri->ri_ops.cursor = p9100_cursor;
1383 ri->ri_ops.copyrows = p9100_copyrows;
1384 ri->ri_ops.eraserows = p9100_eraserows;
1385 ri->ri_ops.copycols = p9100_copycols;
1386 ri->ri_ops.erasecols = p9100_erasecols;
1387 if (FONT_IS_ALPHA(ri->ri_font)) {
1388 ri->ri_ops.putchar = p9100_putchar_aa;
1389 } else
1390 ri->ri_ops.putchar = p9100_putchar;
1391 }
1392
1393 static int
1394 p9100_putcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
1395 {
1396 u_int index = cm->index;
1397 u_int count = cm->count;
1398 int i, error;
1399 u_char rbuf[256], gbuf[256], bbuf[256];
1400 u_char *r, *g, *b;
1401
1402 if (cm->index >= 256 || cm->count > 256 ||
1403 (cm->index + cm->count) > 256)
1404 return EINVAL;
1405 error = copyin(cm->red, &rbuf[index], count);
1406 if (error)
1407 return error;
1408 error = copyin(cm->green, &gbuf[index], count);
1409 if (error)
1410 return error;
1411 error = copyin(cm->blue, &bbuf[index], count);
1412 if (error)
1413 return error;
1414
1415 r = &rbuf[index];
1416 g = &gbuf[index];
1417 b = &bbuf[index];
1418
1419 for (i = 0; i < count; i++) {
1420 sc->sc_cmap.cm_map[index][0] = *r;
1421 sc->sc_cmap.cm_map[index][1] = *g;
1422 sc->sc_cmap.cm_map[index][2] = *b;
1423 index++;
1424 r++, g++, b++;
1425 }
1426 p9100loadcmap(sc, 0, 256);
1427 return 0;
1428 }
1429
1430 static int
1431 p9100_getcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
1432 {
1433 u_int index = cm->index;
1434 u_int count = cm->count;
1435 int error, i;
1436 uint8_t red[256], green[256], blue[256];
1437
1438 if (index >= 255 || count > 256 || index + count > 256)
1439 return EINVAL;
1440
1441 i = index;
1442 while (i < (index + count)) {
1443 red[i] = sc->sc_cmap.cm_map[i][0];
1444 green[i] = sc->sc_cmap.cm_map[i][1];
1445 blue[i] = sc->sc_cmap.cm_map[i][2];
1446 i++;
1447 }
1448 error = copyout(&red[index], cm->red, count);
1449 if (error)
1450 return error;
1451 error = copyout(&green[index], cm->green, count);
1452 if (error)
1453 return error;
1454 error = copyout(&blue[index], cm->blue, count);
1455 if (error)
1456 return error;
1457
1458 return 0;
1459 }
1460
1461 static void
1462 p9100_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
1463 {
1464 struct rasops_info *ri = cookie;
1465 struct vcons_screen *scr = ri->ri_hw;
1466 int32_t xs, xd, y, width, height;
1467
1468 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
1469 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
1470 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
1471 width = ri->ri_font->fontwidth * ncols;
1472 height = ri->ri_font->fontheight;
1473 p9100_bitblt(scr->scr_cookie, xs, y, xd, y, width, height, ROP_SRC);
1474 }
1475
1476 static void
1477 p9100_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
1478 {
1479 struct rasops_info *ri = cookie;
1480 struct vcons_screen *scr = ri->ri_hw;
1481 int32_t x, y, width, height, bg;
1482
1483 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
1484 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
1485 width = ri->ri_font->fontwidth * ncols;
1486 height = ri->ri_font->fontheight;
1487 bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
1488 p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
1489 }
1490
1491 static void
1492 p9100_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
1493 {
1494 struct rasops_info *ri = cookie;
1495 struct vcons_screen *scr = ri->ri_hw;
1496 int32_t x, ys, yd, width, height;
1497
1498 x = ri->ri_xorigin;
1499 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
1500 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
1501 width = ri->ri_emuwidth;
1502 height = ri->ri_font->fontheight * nrows;
1503 p9100_bitblt(scr->scr_cookie, x, ys, x, yd, width, height, ROP_SRC);
1504 }
1505
1506 static void
1507 p9100_eraserows(void *cookie, int row, int nrows, long fillattr)
1508 {
1509 struct rasops_info *ri = cookie;
1510 struct vcons_screen *scr = ri->ri_hw;
1511 int32_t x, y, width, height, bg;
1512
1513 if ((row == 0) && (nrows == ri->ri_rows)) {
1514 x = y = 0;
1515 width = ri->ri_width;
1516 height = ri->ri_height;
1517 } else {
1518 x = ri->ri_xorigin;
1519 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
1520 width = ri->ri_emuwidth;
1521 height = ri->ri_font->fontheight * nrows;
1522 }
1523 bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
1524 p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
1525 }
1526
1527 #if 0
1528 static int
1529 p9100_load_font(void *v, void *cookie, struct wsdisplay_font *data)
1530 {
1531
1532 return 0;
1533 }
1534 #endif
1535
1536 #endif /* NWSDISPLAY > 0 */
1537
1538 #if 0
1539 static int
1540 p9100_intr(void *arg)
1541 {
1542 /*p9100_softc *sc=arg;*/
1543 DPRINTF(".");
1544 return 1;
1545 }
1546 #endif
1547
1548 static void
1549 p9100_init_cursor(struct p9100_softc *sc)
1550 {
1551
1552 memset(&sc->sc_cursor, 0, sizeof(struct pnozz_cursor));
1553 sc->sc_cursor.pc_size.x = 64;
1554 sc->sc_cursor.pc_size.y = 64;
1555
1556 }
1557
1558 static void
1559 p9100_set_fbcursor(struct p9100_softc *sc)
1560 {
1561 #ifdef PNOZZ_PARANOID
1562 int s;
1563
1564 s = splhigh(); /* just in case... */
1565 #endif
1566 sc->sc_last_offset = 0xffffffff;
1567
1568 /* set position and hotspot */
1569 p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
1570 p9100_ramdac_write(sc, DAC_INDX_HI, 0);
1571 p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_CTL);
1572 if (sc->sc_cursor.pc_enable) {
1573 p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_X11 |
1574 DAC_CURSOR_64);
1575 } else
1576 p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_OFF);
1577 /* next two registers - x low, high, y low, high */
1578 p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.x & 0xff);
1579 p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.x >> 8) &
1580 0xff);
1581 p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.y & 0xff);
1582 p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.y >> 8) &
1583 0xff);
1584 /* hotspot */
1585 p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.x & 0xff);
1586 p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.y & 0xff);
1587
1588 #ifdef PNOZZ_PARANOID
1589 splx(s);
1590 #endif
1591
1592 }
1593
1594 static void
1595 p9100_setcursorcmap(struct p9100_softc *sc)
1596 {
1597 int i;
1598
1599 #ifdef PNOZZ_PARANOID
1600 int s;
1601 s = splhigh(); /* just in case... */
1602 #endif
1603 sc->sc_last_offset = 0xffffffff;
1604
1605 /* set cursor colours */
1606 p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
1607 p9100_ramdac_write(sc, DAC_INDX_HI, 0);
1608 p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_COL_1);
1609
1610 for (i = 0; i < 3; i++) {
1611 p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.red[i]);
1612 p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.green[i]);
1613 p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.blue[i]);
1614 }
1615
1616 #ifdef PNOZZ_PARANOID
1617 splx(s);
1618 #endif
1619 }
1620
1621 static void
1622 p9100_loadcursor(struct p9100_softc *sc)
1623 {
1624 uint32_t *image, *mask;
1625 uint32_t bit, bbit, im, ma;
1626 int i, j, k;
1627 uint8_t latch1, latch2;
1628
1629 #ifdef PNOZZ_PARANOID
1630 int s;
1631 s = splhigh(); /* just in case... */
1632 #endif
1633 sc->sc_last_offset = 0xffffffff;
1634
1635 /* set cursor shape */
1636 p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
1637 p9100_ramdac_write(sc, DAC_INDX_HI, 1);
1638 p9100_ramdac_write(sc, DAC_INDX_LO, 0);
1639
1640 image = sc->sc_cursor.pc_bits;
1641 mask = &sc->sc_cursor.pc_bits[0x80];
1642
1643 for (i = 0; i < 0x80; i++) {
1644 bit = 0x80000000;
1645 im = image[i];
1646 ma = mask[i];
1647 for (k = 0; k < 4; k++) {
1648 bbit = 0x1;
1649 latch1 = 0;
1650 for (j = 0; j < 4; j++) {
1651 if (im & bit)
1652 latch1 |= bbit;
1653 bbit <<= 1;
1654 if (ma & bit)
1655 latch1 |= bbit;
1656 bbit <<= 1;
1657 bit >>= 1;
1658 }
1659 bbit = 0x1;
1660 latch2 = 0;
1661 for (j = 0; j < 4; j++) {
1662 if (im & bit)
1663 latch2 |= bbit;
1664 bbit <<= 1;
1665 if (ma & bit)
1666 latch2 |= bbit;
1667 bbit <<= 1;
1668 bit >>= 1;
1669 }
1670 p9100_ramdac_write(sc, DAC_INDX_DATA, latch1);
1671 p9100_ramdac_write(sc, DAC_INDX_DATA, latch2);
1672 }
1673 }
1674 #ifdef PNOZZ_DEBUG_CURSOR
1675 printf("image:\n");
1676 for (i=0;i<0x80;i+=2)
1677 printf("%08x %08x\n", image[i], image[i+1]);
1678 printf("mask:\n");
1679 for (i=0;i<0x80;i+=2)
1680 printf("%08x %08x\n", mask[i], mask[i+1]);
1681 #endif
1682 #ifdef PNOZZ_PARANOID
1683 splx(s);
1684 #endif
1685 }
1686
1687 #if NTCTRL > 0
1688 static void
1689 p9100_set_extvga(void *cookie, int status)
1690 {
1691 struct p9100_softc *sc = cookie;
1692 #ifdef PNOZZ_PARANOID
1693 int s;
1694
1695 s = splhigh();
1696 #endif
1697
1698 #ifdef PNOZZ_DEBUG
1699 printf("%s: external VGA %s\n", device_xname(sc->sc_dev),
1700 status ? "on" : "off");
1701 #endif
1702
1703 sc->sc_last_offset = 0xffffffff;
1704
1705 if (status) {
1706 p9100_ramdac_write_ctl(sc, DAC_POWER_MGT,
1707 p9100_ramdac_read_ctl(sc, DAC_POWER_MGT) &
1708 ~DAC_POWER_IPWR_DISABLE);
1709 } else {
1710 p9100_ramdac_write_ctl(sc, DAC_POWER_MGT,
1711 p9100_ramdac_read_ctl(sc, DAC_POWER_MGT) |
1712 DAC_POWER_IPWR_DISABLE);
1713 }
1714 #ifdef PNOZZ_PARANOID
1715 splx(s);
1716 #endif
1717 }
1718 #endif /* NTCTRL > 0 */
1719
1720 static int
1721 upper_bit(uint32_t b)
1722 {
1723 uint32_t mask=0x80000000;
1724 int cnt = 31;
1725 if (b == 0)
1726 return -1;
1727 while ((mask != 0) && ((b & mask) == 0)) {
1728 mask = mask >> 1;
1729 cnt--;
1730 }
1731 return cnt;
1732 }
1733
1734 static int
1735 p9100_set_depth(struct p9100_softc *sc, int depth)
1736 {
1737 int new_sls;
1738 uint32_t bits, scr, memctl, mem;
1739 int s0, s1, s2, s3, ps, crtcline;
1740 uint8_t pf, mc3, es;
1741
1742 switch (depth) {
1743 case 8:
1744 sc->sc_depthshift = 0;
1745 ps = 2;
1746 pf = 3;
1747 mc3 = 0;
1748 es = 0; /* no swapping */
1749 memctl = 3;
1750 break;
1751 case 16:
1752 sc->sc_depthshift = 1;
1753 ps = 3;
1754 pf = 4;
1755 mc3 = 0;
1756 es = 2; /* swap bytes in 16bit words */
1757 memctl = 2;
1758 break;
1759 case 24:
1760 /* boo */
1761 printf("We don't DO 24bit pixels dammit!\n");
1762 return 0;
1763 case 32:
1764 sc->sc_depthshift = 2;
1765 ps = 5;
1766 pf = 6;
1767 mc3 = 0;
1768 es = 6; /* swap both half-words and bytes */
1769 memctl = 1; /* 0 */
1770 break;
1771 default:
1772 aprint_error("%s: bogus colour depth (%d)\n",
1773 __func__, depth);
1774 return FALSE;
1775 }
1776 /*
1777 * this could be done a lot shorter and faster but then nobody would
1778 * understand what the hell we're doing here without getting a major
1779 * headache. Scanline size is encoded as 4 shift values, 3 of them 3 bits
1780 * wide, 16 << n for n>0, one 2 bits, 512 << n for n>0. n==0 means 0
1781 */
1782 new_sls = sc->sc_width << sc->sc_depthshift;
1783 sc->sc_stride = new_sls;
1784 bits = new_sls;
1785 s3 = upper_bit(bits);
1786 if (s3 > 9) {
1787 bits &= ~(1 << s3);
1788 s3 -= 9;
1789 } else
1790 s3 = 0;
1791 s2 = upper_bit(bits);
1792 if (s2 > 0) {
1793 bits &= ~(1 << s2);
1794 s2 -= 4;
1795 } else
1796 s2 = 0;
1797 s1 = upper_bit(bits);
1798 if (s1 > 0) {
1799 bits &= ~(1 << s1);
1800 s1 -= 4;
1801 } else
1802 s1 = 0;
1803 s0 = upper_bit(bits);
1804 if (s0 > 0) {
1805 bits &= ~(1 << s0);
1806 s0 -= 4;
1807 } else
1808 s0 = 0;
1809
1810
1811 DPRINTF("sls: %x sh: %d %d %d %d leftover: %x\n", new_sls, s0, s1,
1812 s2, s3, bits);
1813
1814 /*
1815 * now let's put these values into the System Config Register. No need to
1816 * read it here since we (hopefully) just saved the content
1817 */
1818 scr = p9100_ctl_read_4(sc, SYS_CONF);
1819 scr = (s0 << SHIFT_0) | (s1 << SHIFT_1) | (s2 << SHIFT_2) |
1820 (s3 << SHIFT_3) | (ps << PIXEL_SHIFT) | (es << SWAP_SHIFT);
1821
1822 DPRINTF("new scr: %x DAC %x %x\n", scr, pf, mc3);
1823
1824 mem = p9100_ctl_read_4(sc, VID_MEM_CONFIG);
1825
1826 DPRINTF("old memctl: %08x\n", mem);
1827
1828 /* set shift and crtc clock */
1829 mem &= ~(0x0000fc00);
1830 mem |= (memctl << 10) | (memctl << 13);
1831 p9100_ctl_write_4(sc, VID_MEM_CONFIG, mem);
1832
1833 DPRINTF("new memctl: %08x\n", mem);
1834
1835 /* whack the engine... */
1836 p9100_ctl_write_4(sc, SYS_CONF, scr);
1837
1838 /* ok, whack the DAC */
1839 p9100_ramdac_write_ctl(sc, DAC_MISC_1, 0x11);
1840 p9100_ramdac_write_ctl(sc, DAC_MISC_2, 0x45);
1841 p9100_ramdac_write_ctl(sc, DAC_MISC_3, mc3);
1842 /*
1843 * despite the 3GX manual saying otherwise we don't need to mess with
1844 * any clock dividers here
1845 */
1846 p9100_ramdac_write_ctl(sc, DAC_MISC_CLK, 1);
1847 p9100_ramdac_write_ctl(sc, 3, 0);
1848 p9100_ramdac_write_ctl(sc, 4, 0);
1849
1850 p9100_ramdac_write_ctl(sc, DAC_POWER_MGT, 0);
1851 p9100_ramdac_write_ctl(sc, DAC_OPERATION, 0);
1852 p9100_ramdac_write_ctl(sc, DAC_PALETTE_CTRL, 0);
1853
1854 p9100_ramdac_write_ctl(sc, DAC_PIXEL_FMT, pf);
1855
1856 /* TODO: distinguish between 15 and 16 bit */
1857 p9100_ramdac_write_ctl(sc, DAC_8BIT_CTRL, 0);
1858 /* direct colour, linear, 565 */
1859 p9100_ramdac_write_ctl(sc, DAC_16BIT_CTRL, 0xc6);
1860 /* direct colour */
1861 p9100_ramdac_write_ctl(sc, DAC_32BIT_CTRL, 3);
1862
1863 /* From the 3GX manual. Needs magic number reduction */
1864 p9100_ramdac_write_ctl(sc, 0x10, 2);
1865 p9100_ramdac_write_ctl(sc, 0x11, 0);
1866 p9100_ramdac_write_ctl(sc, 0x14, 5);
1867 p9100_ramdac_write_ctl(sc, 0x08, 1);
1868 p9100_ramdac_write_ctl(sc, 0x15, 5);
1869 p9100_ramdac_write_ctl(sc, 0x16, 0x63);
1870
1871 /* whack the CRTC */
1872 /* we always transfer 64bit in one go */
1873 crtcline = sc->sc_stride >> 3;
1874
1875 DPRINTF("crtcline: %d\n", crtcline);
1876
1877 p9100_ctl_write_4(sc, VID_HTOTAL, (24 << sc->sc_depthshift) + crtcline);
1878 p9100_ctl_write_4(sc, VID_HSRE, 8 << sc->sc_depthshift);
1879 p9100_ctl_write_4(sc, VID_HBRE, 18 << sc->sc_depthshift);
1880 p9100_ctl_write_4(sc, VID_HBFE, (18 << sc->sc_depthshift) + crtcline);
1881
1882 #ifdef PNOZZ_DEBUG
1883 {
1884 uint32_t sscr;
1885 sscr = p9100_ctl_read_4(sc, SYS_CONF);
1886 printf("scr: %x\n", sscr);
1887 }
1888 #endif
1889 return TRUE;
1890 }
1891