xref: /netbsd/sys/dev/sbus/zx.c (revision c4a72b64)
1 /*	$NetBSD: zx.c,v 1.5 2002/10/02 16:52:46 thorpej Exp $	*/
2 
3 /*
4  *  Copyright (c) 2002 The NetBSD Foundation, Inc.
5  *  All rights reserved.
6  *
7  *  This code is derived from software contributed to The NetBSD Foundation
8  *  by Andrew Doran.
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  * Driver for the Sun ZX display adapter.  This would be called 'leo', but
41  * NetBSD/amiga already has a driver by that name.  The XFree86 and Linux
42  * drivers were used as "living documentation" when writing this; thanks
43  * to the authors.
44  *
45  * Issues (which can be solved with wscons, happily enough):
46  *
47  * o There is lots of unnecessary mucking about rasops in here, primarily
48  *   to appease the sparc fb code.
49  *
50  * o RASTERCONSOLE is required.  X needs the board set up correctly, and
51  *   that's difficult to reconcile with using the PROM for output.
52  */
53 
54 #include <sys/cdefs.h>
55 __KERNEL_RCSID(0, "$NetBSD: zx.c,v 1.5 2002/10/02 16:52:46 thorpej Exp $");
56 
57 #include <sys/param.h>
58 #include <sys/systm.h>
59 #include <sys/device.h>
60 #include <sys/ioctl.h>
61 #include <sys/malloc.h>
62 #include <sys/mman.h>
63 #include <sys/tty.h>
64 #include <sys/conf.h>
65 #include <sys/syslog.h>
66 #include <sys/buf.h>
67 
68 #include <machine/bus.h>
69 #include <machine/autoconf.h>
70 
71 #include <uvm/uvm_extern.h>
72 
73 #include <dev/sun/fbio.h>
74 #include <dev/sun/fbvar.h>
75 
76 #include <dev/sbus/zxreg.h>
77 #include <dev/sbus/zxvar.h>
78 #include <dev/sbus/sbusvar.h>
79 
80 #include <dev/wscons/wsconsio.h>
81 
82 #ifndef RASTERCONSOLE
83 #error Sorry, this driver needs the RASTERCONSOLE option
84 #endif
85 
86 /* Force 32-bit writes. */
87 #define	SETREG(r, v)	(*((volatile u_int32_t *)&r) = (v))
88 
89 #define	ZX_STD_ROP	(ZX_ROP_NEW | ZX_ATTR_WE_ENABLE | \
90     ZX_ATTR_OE_ENABLE | ZX_ATTR_FORCE_WID)
91 
92 void	zx_attach(struct device *, struct device *, void *);
93 int	zx_match(struct device *, struct cfdata *, void *);
94 
95 void	zx_blank(struct device *);
96 int	zx_cmap_put(struct zx_softc *);
97 void	zx_copyrect(struct rasops_info *, int, int, int, int, int, int);
98 int	zx_cross_loadwid(struct zx_softc *, u_int, u_int, u_int);
99 int	zx_cross_wait(struct zx_softc *);
100 void	zx_fillrect(struct rasops_info *, int, int, int, int, long, int);
101 int	zx_intr(void *);
102 void	zx_reset(struct zx_softc *);
103 void	zx_unblank(struct device *);
104 
105 void	zx_cursor_blank(struct zx_softc *);
106 void	zx_cursor_color(struct zx_softc *);
107 void	zx_cursor_move(struct zx_softc *);
108 void	zx_cursor_set(struct zx_softc *);
109 void	zx_cursor_unblank(struct zx_softc *);
110 
111 void	zx_copycols(void *, int, int, int, int);
112 void	zx_copyrows(void *, int, int, int);
113 void	zx_cursor(void *, int, int, int);
114 void	zx_do_cursor(struct rasops_info *);
115 void	zx_erasecols(void *, int, int, int, long);
116 void	zx_eraserows(void *, int, int, long);
117 void	zx_putchar(void *, int, int, u_int, long);
118 
119 struct zx_mmo {
120 	off_t	mo_va;
121 	off_t	mo_pa;
122 	off_t	mo_size;
123 } static const zx_mmo[] = {
124 	{ ZX_FB0_VOFF,		ZX_OFF_SS0,		0x00800000 },
125 	{ ZX_LC0_VOFF,		ZX_OFF_LC_SS0_USR,	0x00001000 },
126 	{ ZX_LD0_VOFF,		ZX_OFF_LD_SS0,		0x00001000 },
127 	{ ZX_LX0_CURSOR_VOFF,	ZX_OFF_LX_CURSOR,	0x00001000 },
128 	{ ZX_FB1_VOFF,		ZX_OFF_SS1,		0x00800000 },
129 	{ ZX_LC1_VOFF,		ZX_OFF_LC_SS1_USR,	0x00001000 },
130 	{ ZX_LD1_VOFF,		ZX_OFF_LD_SS1,		0x00001000 },
131 	{ ZX_LX_KRN_VOFF,	ZX_OFF_LX_CROSS,	0x00001000 },
132 	{ ZX_LC0_KRN_VOFF,	ZX_OFF_LC_SS0_KRN,	0x00001000 },
133 	{ ZX_LC1_KRN_VOFF,	ZX_OFF_LC_SS1_KRN,	0x00001000 },
134 	{ ZX_LD_GBL_VOFF,	ZX_OFF_LD_GBL,		0x00001000 },
135 };
136 
137 CFATTACH_DECL(zx, sizeof(struct zx_softc),
138     zx_match, zx_attach, NULL, NULL);
139 
140 extern struct cfdriver zx_cd;
141 
142 dev_type_open(zxopen);
143 dev_type_close(zxclose);
144 dev_type_ioctl(zxioctl);
145 dev_type_mmap(zxmmap);
146 
147 static struct fbdriver zx_fbdriver = {
148 	zx_unblank, zxopen, zxclose, zxioctl, nopoll, zxmmap
149 };
150 
151 int
152 zx_match(struct device *parent, struct cfdata *cf, void *aux)
153 {
154 	struct sbus_attach_args *sa;
155 
156 	sa = (struct sbus_attach_args *)aux;
157 
158 	return (strcmp(sa->sa_name, "SUNW,leo") == 0);
159 }
160 
161 void
162 zx_attach(struct device *parent, struct device *self, void *args)
163 {
164 	struct zx_softc *sc;
165 	struct sbus_attach_args *sa;
166 	bus_space_handle_t bh;
167 	bus_space_tag_t bt;
168 	struct fbdevice *fb;
169 	struct rasops_info *ri;
170 	volatile struct zx_command *zc;
171 	int isconsole;
172 
173 	sc = (struct zx_softc *)self;
174 	sa = args;
175 	fb = &sc->sc_fb;
176 	ri = &fb->fb_rinfo;
177 	bt = sa->sa_bustag;
178 	sc->sc_bt = bt;
179 
180 	sc->sc_paddr = sbus_bus_addr(bt, sa->sa_slot, sa->sa_offset);
181 
182 	if (sbus_bus_map(bt, sa->sa_slot, sa->sa_offset + ZX_OFF_SS0,
183 	    0x800000, BUS_SPACE_MAP_LINEAR, &bh) != 0) {
184 		printf("%s: can't map bits\n", self->dv_xname);
185 		return;
186 	}
187 	fb->fb_pixels = (caddr_t)bus_space_vaddr(bt, bh);
188 	sc->sc_pixels = (u_int32_t *)fb->fb_pixels;
189 
190 	if (sbus_bus_map(bt, sa->sa_slot, sa->sa_offset + ZX_OFF_LC_SS0_USR,
191 	    PAGE_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) {
192 		printf("%s: can't map zc\n", self->dv_xname);
193 		return;
194 	}
195 	sc->sc_zc = (struct zx_command *)bus_space_vaddr(bt, bh);
196 
197 	if (sbus_bus_map(bt, sa->sa_slot, sa->sa_offset + ZX_OFF_LD_SS0,
198 	    PAGE_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) {
199 		printf("%s: can't map ld/ss0\n", self->dv_xname);
200 		return;
201 	}
202 	sc->sc_zd_ss0 = (struct zx_draw *)bus_space_vaddr(bt, bh);
203 
204 	if (sbus_bus_map(bt, sa->sa_slot, sa->sa_offset + ZX_OFF_LD_SS1,
205 	    PAGE_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) {
206 		printf("%s: can't map ld/ss1\n", self->dv_xname);
207 		return;
208 	}
209 	sc->sc_zd_ss1 =
210 	    (struct zx_draw_ss1 *)bus_space_vaddr(bt, bh);
211 
212 	if (sbus_bus_map(bt, sa->sa_slot, sa->sa_offset + ZX_OFF_LX_CROSS,
213 	    PAGE_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) {
214 		printf("%s: can't map zx\n", self->dv_xname);
215 		return;
216 	}
217 	sc->sc_zx = (struct zx_cross *)bus_space_vaddr(bt, bh);
218 
219 	if (sbus_bus_map(bt, sa->sa_slot, sa->sa_offset + ZX_OFF_LX_CURSOR,
220 	    PAGE_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) {
221 		printf("%s: can't map zcu\n", self->dv_xname);
222 		return;
223 	}
224 	sc->sc_zcu = (struct zx_cursor *)bus_space_vaddr(bt, bh);
225 
226 	fb->fb_driver = &zx_fbdriver;
227 	fb->fb_device = &sc->sc_dv;
228 	fb->fb_flags = sc->sc_dv.dv_cfdata->cf_flags & FB_USERMASK;
229 	fb->fb_pfour = NULL;
230 	fb->fb_linebytes = 8192;
231 
232 	fb_setsize_obp(fb, 32, 1280, 1024, sa->sa_node);
233 
234 	fb->fb_type.fb_cmsize = 256;
235 	fb->fb_type.fb_depth = 32;
236 	fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
237 	fb->fb_type.fb_type = FBTYPE_SUNLEO;
238 
239 	printf(": %d x %d", fb->fb_type.fb_width, fb->fb_type.fb_height);
240 	isconsole = fb_is_console(sa->sa_node);
241 	if (isconsole)
242 		printf(" (console)");
243 	printf("\n");
244 
245 	sbus_establish(&sc->sc_sd, &sc->sc_dv);
246 	if (sa->sa_nintr != 0)
247 		bus_intr_establish(bt, sa->sa_pri, IPL_NONE, 0, zx_intr, sc);
248 
249 	sc->sc_cmap = malloc(768, M_DEVBUF, M_NOWAIT);
250 	fb_attach(&sc->sc_fb, isconsole);
251 	zx_reset(sc);
252 
253 	/*
254 	 * Attach to rcons.  XXX At this point, rasops_do_cursor() will be
255 	 * called before we get our hooks in place.  So, we mask off access
256 	 * to the framebuffer until it's done.
257 	 */
258 	zc = sc->sc_zc;
259 	SETREG(zc->zc_fontt, 1);
260 	SETREG(zc->zc_fontmsk, 0);
261 
262 	fbrcons_init(&sc->sc_fb);
263 
264 	SETREG(zc->zc_fontt, 0);
265 	SETREG(zc->zc_fontmsk, 0xffffffff);
266 
267 	ri->ri_hw = sc;
268 	ri->ri_do_cursor = zx_do_cursor;
269 	ri->ri_ops.copycols = zx_copycols;
270 	ri->ri_ops.copyrows = zx_copyrows;
271 	ri->ri_ops.erasecols = zx_erasecols;
272 	ri->ri_ops.eraserows = zx_eraserows;
273 	ri->ri_ops.putchar = zx_putchar;
274 
275 	sc->sc_fontw = ri->ri_font->fontwidth;
276 	sc->sc_fonth = ri->ri_font->fontheight;
277 }
278 
279 int
280 zxopen(dev_t dev, int flags, int mode, struct proc *p)
281 {
282 
283 	if (device_lookup(&zx_cd, minor(dev)) == NULL)
284 		return (ENXIO);
285 	return (0);
286 }
287 
288 int
289 zxclose(dev_t dev, int flags, int mode, struct proc *p)
290 {
291 	struct zx_softc *sc;
292 
293 	sc = (struct zx_softc *)device_lookup(&zx_cd, minor(dev));
294 
295 	zx_reset(sc);
296 	zx_cursor_blank(sc);
297 	return (0);
298 }
299 
300 int
301 zxioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
302 {
303 	struct zx_softc *sc;
304 	struct fbcmap *cm;
305 	struct fbcursor *cu;
306 	int rv, v, count, i;
307 
308 	sc = zx_cd.cd_devs[minor(dev)];
309 
310 	switch (cmd) {
311 	case FBIOGTYPE:
312 		*(struct fbtype *)data = sc->sc_fb.fb_type;
313 		break;
314 
315 	case FBIOGATTR:
316 #define fba ((struct fbgattr *)data)
317 		fba->real_type = sc->sc_fb.fb_type.fb_type;
318 		fba->owner = 0;		/* XXX ??? */
319 		fba->fbtype = sc->sc_fb.fb_type;
320 		fba->sattr.flags = 0;
321 		fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
322 		fba->sattr.dev_specific[0] = -1;
323 		fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
324 		fba->emu_types[1] = -1;
325 		fba->emu_types[2] = -1;
326 #undef fba
327 		break;
328 
329 	case FBIOGVIDEO:
330 		*(int *)data = ((sc->sc_flags & ZX_BLANKED) != 0);
331 		break;
332 
333 	case FBIOSVIDEO:
334 		if (*(int *)data)
335 			zx_unblank(&sc->sc_dv);
336 		else
337 			zx_blank(&sc->sc_dv);
338 		break;
339 
340 	case FBIOGETCMAP:
341 		cm = (struct fbcmap *)data;
342 		if (cm->index > 256 || cm->count > 256 - cm->index)
343 			return (EINVAL);
344 		rv = copyout(sc->sc_cmap + cm->index, cm->red, cm->count);
345 		if (rv == 0)
346 			rv = copyout(sc->sc_cmap + 256 + cm->index, cm->green,
347 			    cm->count);
348 		if (rv == 0)
349 			rv = copyout(sc->sc_cmap + 512 + cm->index, cm->blue,
350 			    cm->count);
351 		return (rv);
352 
353 	case FBIOPUTCMAP:
354 		cm = (struct fbcmap *)data;
355 		if (cm->index > 256 || cm->count > 256 - cm->index)
356 			return (EINVAL);
357 		rv = copyin(cm->red, sc->sc_cmap + cm->index, cm->count);
358 		if (rv == 0)
359 			rv = copyin(cm->green, sc->sc_cmap + 256 + cm->index,
360 			    cm->count);
361 		if (rv == 0)
362 			rv = copyin(cm->blue, sc->sc_cmap + 512 + cm->index,
363 			    cm->count);
364 		zx_cmap_put(sc);
365 		return (rv);
366 
367 	case FBIOGCURPOS:
368 		*(struct fbcurpos *)data = sc->sc_curpos;
369 		break;
370 
371 	case FBIOSCURPOS:
372 		sc->sc_curpos = *(struct fbcurpos *)data;
373 		zx_cursor_move(sc);
374 		break;
375 
376 	case FBIOGCURMAX:
377 		((struct fbcurpos *)data)->x = 32;
378 		((struct fbcurpos *)data)->y = 32;
379 		break;
380 
381 	case FBIOSCURSOR:
382 		cu = (struct fbcursor *)data;
383 		v = cu->set;
384 
385 		if ((v & FB_CUR_SETSHAPE) != 0) {
386 			if ((u_int)cu->size.x > 32 || (u_int)cu->size.y > 32)
387 				return (EINVAL);
388 			count = cu->size.y * 4;
389 			if (!uvm_useracc(cu->image, count, B_READ) ||
390 			    !uvm_useracc(cu->mask, count, B_READ))
391 				return (EFAULT);
392 		}
393 		if ((v & FB_CUR_SETCUR) != 0) {
394 			if (cu->enable)
395 				zx_cursor_unblank(sc);
396 			else
397 				zx_cursor_blank(sc);
398 		}
399 		if ((v & (FB_CUR_SETPOS | FB_CUR_SETHOT)) != 0) {
400 			if ((v & FB_CUR_SETPOS) != 0)
401 				sc->sc_curpos = cu->pos;
402 			if ((v & FB_CUR_SETHOT) != 0)
403 				sc->sc_curhot = cu->hot;
404 			zx_cursor_move(sc);
405 		}
406 		if ((v & FB_CUR_SETCMAP) != 0) {
407 			if (cu->cmap.index > 2 ||
408 			    cu->cmap.count > 2 - cu->cmap.index)
409 				return (EINVAL);
410 			for (i = 0; i < cu->cmap.count; i++) {
411 				if ((v = fubyte(&cu->cmap.red[i])) < 0)
412 					return (EFAULT);
413 				sc->sc_curcmap[i + cu->cmap.index + 0] = v;
414 				if ((v = fubyte(&cu->cmap.green[i])) < 0)
415 					return (EFAULT);
416 				sc->sc_curcmap[i + cu->cmap.index + 2] = v;
417 				if ((v = fubyte(&cu->cmap.blue[i])) < 0)
418 					return (EFAULT);
419 				sc->sc_curcmap[i + cu->cmap.index + 4] = v;
420 			}
421 			zx_cursor_color(sc);
422 		}
423 		if ((v & FB_CUR_SETSHAPE) != 0) {
424 			sc->sc_cursize = cu->size;
425 			count = cu->size.y * 4;
426 			memset(sc->sc_curbits, 0, sizeof(sc->sc_curbits));
427 			copyin(cu->mask, (caddr_t)sc->sc_curbits[0], count);
428 			copyin(cu->image, (caddr_t)sc->sc_curbits[1], count);
429 			zx_cursor_set(sc);
430 		}
431 		break;
432 
433 	case FBIOGCURSOR:
434 		cu = (struct fbcursor *)data;
435 
436 		cu->set = FB_CUR_SETALL;
437 		cu->enable = ((sc->sc_flags & ZX_CURSOR) != 0);
438 		cu->pos = sc->sc_curpos;
439 		cu->hot = sc->sc_curhot;
440 		cu->size = sc->sc_cursize;
441 
442 		if (cu->image != NULL) {
443 			count = sc->sc_cursize.y * 4;
444 			rv = copyout((caddr_t)sc->sc_curbits[1],
445 			    (caddr_t)cu->image, count);
446 			if (rv)
447 				return (rv);
448 			rv = copyout((caddr_t)sc->sc_curbits[0],
449 			    (caddr_t)cu->mask, count);
450 			if (rv)
451 				return (rv);
452 		}
453 		if (cu->cmap.red != NULL) {
454 			if (cu->cmap.index > 2 ||
455 			    cu->cmap.count > 2 - cu->cmap.index)
456 				return (EINVAL);
457 			for (i = 0; i < cu->cmap.count; i++) {
458 				v = sc->sc_curcmap[i + cu->cmap.index + 0];
459 				if (subyte(&cu->cmap.red[i], v))
460 					return (EFAULT);
461 				v = sc->sc_curcmap[i + cu->cmap.index + 2];
462 				if (subyte(&cu->cmap.green[i], v))
463 					return (EFAULT);
464 				v = sc->sc_curcmap[i + cu->cmap.index + 4];
465 				if (subyte(&cu->cmap.blue[i], v))
466 					return (EFAULT);
467 			}
468 		} else {
469 			cu->cmap.index = 0;
470 			cu->cmap.count = 2;
471 		}
472 		break;
473 
474 	default:
475 #ifdef DEBUG
476 		log(LOG_NOTICE, "zxioctl(0x%lx) (%s[%d])\n", cmd,
477 		    p->p_comm, p->p_pid);
478 #endif
479 		return (ENOTTY);
480 	}
481 
482 	return (0);
483 }
484 
485 int
486 zx_intr(void *cookie)
487 {
488 
489 	return (1);
490 }
491 
492 void
493 zx_reset(struct zx_softc *sc)
494 {
495 	volatile struct zx_draw *zd;
496 	volatile struct zx_command *zc;
497 	struct fbtype *fbt;
498 	u_int i;
499 
500 	zd = sc->sc_zd_ss0;
501 	zc = sc->sc_zc;
502 	fbt = &sc->sc_fb.fb_type;
503 
504 	zx_cross_loadwid(sc, ZX_WID_DBL_8, 0, 0x2c0);
505 	zx_cross_loadwid(sc, ZX_WID_DBL_8, 1, 0x30);
506 	zx_cross_loadwid(sc, ZX_WID_DBL_8, 2, 0x20);
507 	zx_cross_loadwid(sc, ZX_WID_DBL_24, 1, 0x30);
508 
509 	i = sc->sc_zd_ss1->zd_misc;
510 	i |= ZX_SS1_MISC_ENABLE;
511 	SETREG(sc->sc_zd_ss1->zd_misc, i);
512 
513 	SETREG(zd->zd_wid, 0xffffffff);
514 	SETREG(zd->zd_widclip, 0);
515 	SETREG(zd->zd_wmask, 0xffff);
516 	SETREG(zd->zd_vclipmin, 0);
517 	SETREG(zd->zd_vclipmax,
518 	    (fbt->fb_width - 1) | ((fbt->fb_height - 1) << 16));
519 	SETREG(zd->zd_fg, 0);
520 	SETREG(zd->zd_planemask, 0xff000000);
521 	SETREG(zd->zd_rop, ZX_STD_ROP);
522 
523 	SETREG(zc->zc_extent,
524 	    (fbt->fb_width - 1) | ((fbt->fb_height - 1) << 11));
525 	SETREG(zc->zc_addrspace, ZX_ADDRSPC_FONT_OBGR);
526 	SETREG(zc->zc_fontt, 0);
527 
528 	for (i = 0; i < 256; i++) {
529 		sc->sc_cmap[i] = rasops_cmap[i * 3];
530 		sc->sc_cmap[i + 256] = rasops_cmap[i * 3 + 1];
531 		sc->sc_cmap[i + 512] = rasops_cmap[i * 3 + 2];
532 	}
533 
534 	zx_cmap_put(sc);
535 }
536 
537 int
538 zx_cross_wait(struct zx_softc *sc)
539 {
540 	volatile struct zx_cross *zx;
541 	int i;
542 
543 	zx = sc->sc_zx;
544 
545 	for (i = 300000; i != 0; i--) {
546 		if ((zx->zx_csr & ZX_CROSS_CSR_PROGRESS) == 0)
547 			break;
548 		DELAY(1);
549 	}
550 
551 	if (i == 0)
552 		printf("zx_cross_wait: timed out\n");
553 
554 	return (i);
555 }
556 
557 int
558 zx_cross_loadwid(struct zx_softc *sc, u_int type, u_int index, u_int value)
559 {
560 	volatile struct zx_cross *zx;
561 	u_int tmp;
562 
563 	zx = sc->sc_zx;
564 	SETREG(zx->zx_type, ZX_CROSS_TYPE_WID);
565 
566 	if (zx_cross_wait(sc))
567 		return (1);
568 
569 	if (type == ZX_WID_DBL_8)
570 		tmp = (index & 0x0f) + 0x40;
571 	else if (type == ZX_WID_DBL_24)
572 		tmp = index & 0x3f;
573 
574 	SETREG(zx->zx_type, 0x5800 + tmp);
575 	SETREG(zx->zx_value, value);
576 	SETREG(zx->zx_type, ZX_CROSS_TYPE_WID);
577 	SETREG(zx->zx_csr, ZX_CROSS_CSR_UNK | ZX_CROSS_CSR_UNK2);
578 
579 	return (0);
580 }
581 
582 int
583 zx_cmap_put(struct zx_softc *sc)
584 {
585 	volatile struct zx_cross *zx;
586 	const u_char *b;
587 	u_int i, t;
588 
589 	zx = sc->sc_zx;
590 
591 	SETREG(zx->zx_type, ZX_CROSS_TYPE_CLUT0);
592 	if (zx_cross_wait(sc))
593 		return (1);
594 
595 	SETREG(zx->zx_type, ZX_CROSS_TYPE_CLUTDATA);
596 
597 	for (i = 0, b = sc->sc_cmap; i < 256; i++) {
598 		t = b[i];
599 		t |= b[i + 256] << 8;
600 		t |= b[i + 512] << 16;
601 		SETREG(zx->zx_value, t);
602 	}
603 
604 	SETREG(zx->zx_type, ZX_CROSS_TYPE_CLUT0);
605 	i = zx->zx_csr;
606 	i = i | ZX_CROSS_CSR_UNK | ZX_CROSS_CSR_UNK2;
607 	SETREG(zx->zx_csr, i);
608 	return (0);
609 }
610 
611 void
612 zx_cursor_move(struct zx_softc *sc)
613 {
614 	volatile struct zx_cursor *zcu;
615 	int sx, sy, x, y;
616 
617 	x = sc->sc_curpos.x - sc->sc_curhot.x;
618 	y = sc->sc_curpos.y - sc->sc_curhot.y;
619 	zcu = sc->sc_zcu;
620 
621 	if (x < 0) {
622 		sx = min(-x, 32);
623 		x = 0;
624 	} else
625 		sx = 0;
626 
627 	if (y < 0) {
628 		sy = min(-y, 32);
629 		y = 0;
630 	} else
631 		sy = 0;
632 
633 	if (sx != sc->sc_shiftx || sy != sc->sc_shifty) {
634 		sc->sc_shiftx = sx;
635 		sc->sc_shifty = sy;
636 		zx_cursor_set(sc);
637 	}
638 
639 	SETREG(zcu->zcu_sxy, ((y & 0x7ff) << 11) | (x & 0x7ff));
640 	SETREG(zcu->zcu_misc, zcu->zcu_misc | 0x30);
641 
642 	/* XXX Necessary? */
643 	SETREG(zcu->zcu_misc, zcu->zcu_misc | 0x80);
644 }
645 
646 void
647 zx_cursor_set(struct zx_softc *sc)
648 {
649 	volatile struct zx_cursor *zcu;
650 	int i, j, data;
651 
652 	zcu = sc->sc_zcu;
653 
654 	if ((sc->sc_flags & ZX_CURSOR) != 0)
655 		SETREG(zcu->zcu_misc, zcu->zcu_misc & ~0x80);
656 
657 	for (j = 0; j < 2; j++) {
658 		SETREG(zcu->zcu_type, 0x20 << i);
659 
660 		for (i = sc->sc_shifty; i < 32; i++) {
661 			data = sc->sc_curbits[j][i];
662 			SETREG(zcu->zcu_data, data >> sc->sc_shiftx);
663 		}
664 		for (i = sc->sc_shifty; i != 0; i--)
665 			SETREG(zcu->zcu_data, 0);
666 	}
667 
668 	if ((sc->sc_flags & ZX_CURSOR) != 0)
669 		SETREG(zcu->zcu_misc, zcu->zcu_misc | 0x80);
670 }
671 
672 void
673 zx_cursor_blank(struct zx_softc *sc)
674 {
675 	volatile struct zx_cursor *zcu;
676 
677 	sc->sc_flags &= ~ZX_CURSOR;
678 	zcu = sc->sc_zcu;
679 	SETREG(zcu->zcu_misc, zcu->zcu_misc & ~0x80);
680 }
681 
682 void
683 zx_cursor_unblank(struct zx_softc *sc)
684 {
685 	volatile struct zx_cursor *zcu;
686 
687 	sc->sc_flags |= ZX_CURSOR;
688 	zcu = sc->sc_zcu;
689 	SETREG(zcu->zcu_misc, zcu->zcu_misc | 0x80);
690 }
691 
692 void
693 zx_cursor_color(struct zx_softc *sc)
694 {
695 	volatile struct zx_cursor *zcu;
696 	u_int8_t tmp;
697 
698 	zcu = sc->sc_zcu;
699 
700 	SETREG(zcu->zcu_type, 0x50);
701 
702 	tmp = sc->sc_curcmap[0] | (sc->sc_curcmap[2] << 8) |
703 	    (sc->sc_curcmap[4] << 16);
704 	SETREG(zcu->zcu_data, tmp);
705 
706 	tmp = sc->sc_curcmap[1] | (sc->sc_curcmap[3] << 8) |
707 	    (sc->sc_curcmap[5] << 16);
708 	SETREG(zcu->zcu_data, sc->sc_curcmap[1]);
709 
710 	SETREG(zcu->zcu_misc, zcu->zcu_misc | 0x03);
711 }
712 
713 void
714 zx_blank(struct device *dv)
715 {
716 	struct zx_softc *sc;
717 	volatile struct zx_cross *zx;
718 
719 	sc = (struct zx_softc *)dv;
720 
721 	if ((sc->sc_flags & ZX_BLANKED) != 0)
722 		return;
723 	sc->sc_flags |= ZX_BLANKED;
724 
725 	zx = sc->sc_zx;
726 	SETREG(zx->zx_type, ZX_CROSS_TYPE_VIDEO);
727 	SETREG(zx->zx_csr, zx->zx_csr & ~ZX_CROSS_CSR_ENABLE);
728 }
729 
730 void
731 zx_unblank(struct device *dv)
732 {
733 	struct zx_softc *sc;
734 	volatile struct zx_cross *zx;
735 
736 	sc = (struct zx_softc *)dv;
737 
738 	if ((sc->sc_flags & ZX_BLANKED) == 0)
739 		return;
740 	sc->sc_flags &= ~ZX_BLANKED;
741 
742 	zx = sc->sc_zx;
743 	SETREG(zx->zx_type, ZX_CROSS_TYPE_VIDEO);
744 	SETREG(zx->zx_csr, zx->zx_csr | ZX_CROSS_CSR_ENABLE);
745 }
746 
747 paddr_t
748 zxmmap(dev_t dev, off_t off, int prot)
749 {
750 	struct zx_softc *sc;
751 	const struct zx_mmo *mm, *max;
752 
753 	sc = device_lookup(&zx_cd, minor(dev));
754 	off = trunc_page(off);
755 	mm = zx_mmo;
756 	max = mm + sizeof(zx_mmo) / sizeof(zx_mmo[0]);
757 
758 	for (; mm < max; mm++)
759 		if (off >= mm->mo_va && off < mm->mo_va + mm->mo_size) {
760 			off = off - mm->mo_va + mm->mo_pa;
761 			return (bus_space_mmap(sc->sc_bt, sc->sc_paddr,
762 			    off, prot, BUS_SPACE_MAP_LINEAR));
763 		}
764 
765 	return (-1);
766 }
767 
768 void
769 zx_fillrect(struct rasops_info *ri, int x, int y, int w, int h, long attr,
770 	    int rop)
771 {
772 	struct zx_softc *sc;
773 	volatile struct zx_command *zc;
774 	volatile struct zx_draw *zd;
775 	int fg, bg;
776 
777 	sc = ri->ri_hw;
778 	zc = sc->sc_zc;
779 	zd = sc->sc_zd_ss0;
780 
781 	rasops_unpack_attr(attr, &fg, &bg, NULL);
782 	x = x * sc->sc_fontw + ri->ri_xorigin;
783 	y = y * sc->sc_fonth + ri->ri_yorigin;
784 	w = sc->sc_fontw * w - 1;
785 	h = sc->sc_fonth * h - 1;
786 
787 	while ((zc->zc_csr & ZX_CSR_BLT_BUSY) != 0)
788 		;
789 
790 	SETREG(zd->zd_rop, rop);
791 	SETREG(zd->zd_fg, (bg & 7) ? 0x00000000 : 0xff000000);
792 	SETREG(zc->zc_extent, w | (h << 11));
793 	SETREG(zc->zc_fill, x | (y << 11) | 0x80000000);
794 }
795 
796 void
797 zx_copyrect(struct rasops_info *ri, int sx, int sy, int dx, int dy, int w,
798 	    int h)
799 {
800 	struct zx_softc *sc;
801 	volatile struct zx_command *zc;
802 	volatile struct zx_draw *zd;
803 	int dir;
804 
805 	sc = ri->ri_hw;
806 	zc = sc->sc_zc;
807 	zd = sc->sc_zd_ss0;
808 
809 	sx = sx * sc->sc_fontw + ri->ri_xorigin;
810 	sy = sy * sc->sc_fonth + ri->ri_yorigin;
811 	dx = dx * sc->sc_fontw + ri->ri_xorigin;
812 	dy = dy * sc->sc_fonth + ri->ri_yorigin;
813 	w = w * sc->sc_fontw - 1;
814 	h = h * sc->sc_fonth - 1;
815 
816 	if (sy < dy || sx < dx) {
817 		dir = 0x80000000;
818 		sx += w;
819 		sy += h;
820 		dx += w;
821 		dy += h;
822 	} else
823 		dir = 0;
824 
825 	while ((zc->zc_csr & ZX_CSR_BLT_BUSY) != 0)
826 		;
827 
828 	SETREG(zd->zd_rop, ZX_STD_ROP);
829 	SETREG(zc->zc_extent, w | (h << 11) | dir);
830 	SETREG(zc->zc_src, sx | (sy << 11));
831 	SETREG(zc->zc_copy, dx | (dy << 11));
832 }
833 
834 void
835 zx_do_cursor(struct rasops_info *ri)
836 {
837 
838 	zx_fillrect(ri, ri->ri_ccol, ri->ri_crow, 1, 1, 0,
839 	    ZX_ROP_NEW_XOR_OLD | ZX_ATTR_WE_ENABLE | ZX_ATTR_OE_ENABLE |
840 	    ZX_ATTR_FORCE_WID);
841 }
842 
843 void
844 zx_erasecols(void *cookie, int row, int col, int num, long attr)
845 {
846 	struct rasops_info *ri;
847 
848 	ri = (struct rasops_info *)cookie;
849 
850 	zx_fillrect(ri, col, row, num, 1, attr, ZX_STD_ROP);
851 }
852 
853 void
854 zx_eraserows(void *cookie, int row, int num, long attr)
855 {
856 	struct rasops_info *ri;
857 
858 	ri = (struct rasops_info *)cookie;
859 
860 	zx_fillrect(ri, 0, row, ri->ri_cols, num, attr, ZX_STD_ROP);
861 }
862 
863 void
864 zx_copyrows(void *cookie, int src, int dst, int num)
865 {
866 	struct rasops_info *ri;
867 
868 	ri = (struct rasops_info *)cookie;
869 
870 	zx_copyrect(ri, 0, src, 0, dst, ri->ri_cols, num);
871 }
872 
873 void
874 zx_copycols(void *cookie, int row, int src, int dst, int num)
875 {
876 	struct rasops_info *ri;
877 
878 	ri = (struct rasops_info *)cookie;
879 
880 	zx_copyrect(ri, src, row, dst, row, num, 1);
881 }
882 
883 void
884 zx_putchar(void *cookie, int row, int col, u_int uc, long attr)
885 {
886 	struct rasops_info *ri;
887 	struct zx_softc *sc;
888 	struct wsdisplay_font *font;
889 	volatile struct zx_command *zc;
890 	volatile struct zx_draw *zd;
891 	volatile u_int32_t *dp;
892 	u_int8_t *fb;
893 	int fs, i, fg, bg, ul;
894 
895 	ri = (struct rasops_info *)cookie;
896 
897 	if (uc == ' ') {
898 		zx_fillrect(ri, col, row, 1, 1, attr, ZX_STD_ROP);
899 		return;
900 	}
901 
902 	sc = (struct zx_softc *)ri->ri_hw;
903 	font = ri->ri_font;
904 	zc = sc->sc_zc;
905 	zd = sc->sc_zd_ss0;
906 
907 	dp = (volatile u_int32_t *)sc->sc_pixels +
908 	    ((row * sc->sc_fonth + ri->ri_yorigin) << 11) +
909 	    (col * sc->sc_fontw + ri->ri_xorigin);
910 	fb = (u_int8_t *)font->data + (uc - font->firstchar) *
911 	    ri->ri_fontscale;
912 	fs = font->stride;
913 	rasops_unpack_attr(attr, &fg, &bg, &ul);
914 
915 	while ((zc->zc_csr & ZX_CSR_BLT_BUSY) != 0)
916 		;
917 
918 	SETREG(zd->zd_rop, ZX_STD_ROP);
919 	SETREG(zd->zd_fg, (fg & 7) ? 0x00000000 : 0xff000000);
920 	SETREG(zd->zd_bg, (bg & 7) ? 0x00000000 : 0xff000000);
921 	SETREG(zc->zc_fontmsk, 0xffffffff << (32 - sc->sc_fontw));
922 
923 	if (sc->sc_fontw <= 8) {
924 		for (i = sc->sc_fonth; i != 0; i--, dp += 2048) {
925 			*dp = *fb << 24;
926 			fb += fs;
927 		}
928 	} else {
929 		for (i = sc->sc_fonth; i != 0; i--, dp += 2048) {
930 			*dp = *((u_int16_t *)fb) << 16;
931 			fb += fs;
932 		}
933 	}
934 
935 	if (ul) {
936 		dp -= 4096;
937 		*dp = 0xffffffff;
938 	}
939 }
940