xref: /netbsd-src/sys/arch/sparc/dev/cgfourteen.c (revision 77ac54cba413979ccef741c7aa4e046ba95772c6)
1 /*	$NetBSD: cgfourteen.c,v 1.99 2024/09/25 10:06:15 macallan Exp $ */
2 
3 /*
4  * Copyright (c) 1996
5  *	The President and Fellows of Harvard College. All rights reserved.
6  * Copyright (c) 1992, 1993
7  *	The Regents of the University of California.  All rights reserved.
8  *
9  * This software was developed by the Computer Systems Engineering group
10  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
11  * contributed to Berkeley.
12  *
13  * All advertising materials mentioning features or use of this software
14  * must display the following acknowledgement:
15  *	This product includes software developed by Harvard University.
16  *	This product includes software developed by the University of
17  *	California, Lawrence Berkeley Laboratory.
18  *
19  * Redistribution and use in source and binary forms, with or without
20  * modification, are permitted provided that the following conditions
21  * are met:
22  * 1. Redistributions of source code must retain the above copyright
23  *    notice, this list of conditions and the following disclaimer.
24  * 2. Redistributions in binary form must reproduce the above copyright
25  *    notice, this list of conditions and the following disclaimer in the
26  *    documentation and/or other materials provided with the distribution.
27  * 3. All advertising materials mentioning features or use of this software
28  *    must display the following acknowledgement:
29  *	This product includes software developed by the University of
30  *	California, Berkeley and its contributors.
31  *	This product includes software developed by Harvard University and
32  *	its contributors.
33  * 4. Neither the name of the University nor the names of its contributors
34  *    may be used to endorse or promote products derived from this software
35  *    without specific prior written permission.
36  *
37  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
38  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
39  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
40  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
41  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
42  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
43  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
45  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
46  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47  * SUCH DAMAGE.
48  *
49  *   Based on:
50  *	NetBSD: cgthree.c,v 1.28 1996/05/31 09:59:22 pk Exp
51  *	NetBSD: cgsix.c,v 1.25 1996/04/01 17:30:00 christos Exp
52  */
53 
54 /*
55  * Driver for Campus-II on-board mbus-based video (cgfourteen).
56  *
57  * Does not handle interrupts, even though they can occur.
58  *
59  * XXX should defer colormap updates to vertical retrace interrupts
60  */
61 
62 #include "opt_wsemul.h"
63 #include "sx.h"
64 
65 #include <sys/param.h>
66 #include <sys/systm.h>
67 #include <sys/buf.h>
68 #include <sys/device.h>
69 #include <sys/ioctl.h>
70 #include <sys/kmem.h>
71 #include <sys/mman.h>
72 #include <sys/tty.h>
73 #include <sys/conf.h>
74 #include <dev/pci/pciio.h>
75 
76 #include <uvm/uvm_extern.h>
77 
78 #include <dev/sun/fbio.h>
79 #include <machine/autoconf.h>
80 #include <machine/pmap.h>
81 #include <dev/sun/fbvar.h>
82 #include <machine/cpu.h>
83 #include <dev/sbus/sbusvar.h>
84 
85 #include "wsdisplay.h"
86 #include <dev/wscons/wsconsio.h>
87 #include <dev/wsfont/wsfont.h>
88 #include <dev/rasops/rasops.h>
89 
90 #include <dev/wscons/wsdisplay_vconsvar.h>
91 #include <dev/wscons/wsdisplay_glyphcachevar.h>
92 
93 #include <sparc/sparc/asm.h>
94 #include <sparc/dev/cgfourteenreg.h>
95 #include <sparc/dev/cgfourteenvar.h>
96 #include <sparc/dev/sxreg.h>
97 #include <sparc/dev/sxvar.h>
98 
99 /* autoconfiguration driver */
100 static int	cgfourteenmatch(device_t, struct cfdata *, void *);
101 static void	cgfourteenattach(device_t, device_t, void *);
102 static void	cgfourteenunblank(device_t);
103 
104 CFATTACH_DECL_NEW(cgfourteen, sizeof(struct cgfourteen_softc),
105     cgfourteenmatch, cgfourteenattach, NULL, NULL);
106 
107 extern struct cfdriver cgfourteen_cd;
108 
109 dev_type_open(cgfourteenopen);
110 dev_type_close(cgfourteenclose);
111 dev_type_ioctl(cgfourteenioctl);
112 dev_type_mmap(cgfourteenmmap);
113 dev_type_poll(cgfourteenpoll);
114 
115 const struct cdevsw cgfourteen_cdevsw = {
116         .d_open = cgfourteenopen,
117 	.d_close = cgfourteenclose,
118 	.d_read = noread,
119 	.d_write = nowrite,
120 	.d_ioctl = cgfourteenioctl,
121         .d_stop = nostop,
122 	.d_tty = notty,
123 	.d_poll = cgfourteenpoll,
124 	.d_mmap = cgfourteenmmap,
125 	.d_kqfilter = nokqfilter,
126 	.d_discard = nodiscard,
127 	.d_flag = 0
128 };
129 
130 /* frame buffer generic driver */
131 static struct fbdriver cgfourteenfbdriver = {
132 	cgfourteenunblank, cgfourteenopen, cgfourteenclose, cgfourteenioctl,
133 	cgfourteenpoll, cgfourteenmmap, nokqfilter
134 };
135 
136 static void cg14_set_video(struct cgfourteen_softc *, int);
137 static int  cg14_get_video(struct cgfourteen_softc *);
138 static int  cg14_get_cmap(struct fbcmap *, union cg14cmap *, int);
139 static int  cg14_put_cmap(struct fbcmap *, union cg14cmap *, int);
140 static void cg14_load_hwcmap(struct cgfourteen_softc *, int, int);
141 static void cg14_init(struct cgfourteen_softc *);
142 static void cg14_reset(struct cgfourteen_softc *);
143 
144 #if NWSDISPLAY > 0
145 static void cg14_setup_wsdisplay(struct cgfourteen_softc *, int);
146 static void cg14_init_cmap(struct cgfourteen_softc *);
147 static int  cg14_putcmap(struct cgfourteen_softc *, struct wsdisplay_cmap *);
148 static int  cg14_getcmap(struct cgfourteen_softc *, struct wsdisplay_cmap *);
149 static void cg14_set_depth(struct cgfourteen_softc *, int);
150 static void cg14_move_cursor(struct cgfourteen_softc *, int, int);
151 static int  cg14_do_cursor(struct cgfourteen_softc *,
152                            struct wsdisplay_cursor *);
153 
154 #if NSX > 0
155 static void cg14_wait_idle(struct cgfourteen_softc *);
156 static void cg14_rectfill(struct cgfourteen_softc *, int, int, int, int,
157     uint32_t);
158 static void cg14_rectfill_a(void *, int, int, int, int, long);
159 static void cg14_invert(struct cgfourteen_softc *, int, int, int, int);
160 static void cg14_bitblt(void *, int, int, int, int, int, int, int);
161 static void cg14_bitblt_gc(void *, int, int, int, int, int, int, int);
162 
163 static void cg14_putchar_aa(void *, int, int, u_int, long);
164 static void cg14_cursor(void *, int, int, int);
165 static void cg14_putchar(void *, int, int, u_int, long);
166 static void cg14_copycols(void *, int, int, int, int);
167 static void cg14_erasecols(void *, int, int, int, long);
168 static void cg14_copyrows(void *, int, int, int);
169 static void cg14_eraserows(void *, int, int, long);
170 
171 /*
172  * issue ALU instruction:
173  * sxi(OPCODE, srcA, srcB, dest, count)
174  */
175 #define sxi(inst, a, b, d, cnt) \
176 	sx_wait(sc->sc_sx); \
177 	sx_write(sc->sc_sx, SX_INSTRUCTIONS, inst((a), (b), (d), (cnt)))
178 
179 /*
180  * issue memory referencing instruction:
181  * sxm(OPCODE, address, start register, count)
182  */
183 #define sxm(inst, addr, reg, count) sta((addr) & ~7, ASI_SX, inst((reg), (count), (addr) & 7))
184 
185 #endif /* NSX > 0 */
186 
187 #endif
188 
189 /*
190  * Match a cgfourteen.
191  */
192 int
193 cgfourteenmatch(device_t parent, struct cfdata *cf, void *aux)
194 {
195 	union obio_attach_args *uoba = aux;
196 	struct sbus_attach_args *sa = &uoba->uoba_sbus;
197 
198 	/*
199 	 * The cgfourteen is a local-bus video adaptor, accessed directly
200 	 * via the processor, and not through device space or an external
201 	 * bus. Thus we look _only_ at the obio bus.
202 	 * Additionally, these things exist only on the Sun4m.
203 	 */
204 
205 	if (uoba->uoba_isobio4 != 0 || !CPU_ISSUN4M)
206 		return (0);
207 
208 	/* Check driver name */
209 	return (strcmp(cf->cf_name, sa->sa_name) == 0);
210 }
211 
212 #if NWSDISPLAY > 0
213 static int	cg14_ioctl(void *, void *, u_long, void *, int, struct lwp *);
214 static paddr_t	cg14_mmap(void *, void *, off_t, int);
215 static void	cg14_init_screen(void *, struct vcons_screen *, int, long *);
216 
217 
218 struct wsdisplay_accessops cg14_accessops = {
219 	cg14_ioctl,
220 	cg14_mmap,
221 	NULL,	/* alloc_screen */
222 	NULL,	/* free_screen */
223 	NULL,	/* show_screen */
224 	NULL, 	/* load_font */
225 	NULL,	/* pollc */
226 	NULL	/* scroll */
227 };
228 #endif
229 
230 /*
231  * Attach a display.  We need to notice if it is the console, too.
232  */
233 void
234 cgfourteenattach(device_t parent, device_t self, void *aux)
235 {
236 	union obio_attach_args *uoba = aux;
237 	struct sbus_attach_args *sa = &uoba->uoba_sbus;
238 	struct cgfourteen_softc *sc = device_private(self);
239 	struct fbdevice *fb = &sc->sc_fb;
240 	bus_space_handle_t bh;
241 	int node;
242 	volatile uint32_t *lut;
243 	int i, isconsole, items;
244 	uint32_t fbva[2] = {0, 0};
245 	uint32_t *ptr = fbva;
246 	int ver, impl;
247 #if NSX > 0
248 	device_t dv;
249 	deviter_t di;
250 #endif
251 
252 	sc->sc_dev = self;
253 	sc->sc_opens = 0;
254 	node = sa->sa_node;
255 
256 	/* Remember cookies for cgfourteenmmap() */
257 	sc->sc_bustag = sa->sa_bustag;
258 
259 	fb->fb_driver = &cgfourteenfbdriver;
260 	fb->fb_device = sc->sc_dev;
261 	/* Mask out invalid flags from the user. */
262 	fb->fb_flags = device_cfdata(sc->sc_dev)->cf_flags & FB_USERMASK;
263 
264 	fb->fb_type.fb_type = FBTYPE_MDICOLOR;
265 	fb->fb_type.fb_depth = 32;
266 
267 	fb_setsize_obp(fb, sc->sc_fb.fb_type.fb_depth, 1152, 900, node);
268 
269 	fb->fb_type.fb_cmsize = CG14_CLUT_SIZE;
270 
271 	if (sa->sa_nreg < 2) {
272 		printf("%s: only %d register sets\n",
273 			device_xname(self), sa->sa_nreg);
274 		return;
275 	}
276 	memcpy(sc->sc_physadr, sa->sa_reg,
277 	      sa->sa_nreg * sizeof(struct sbus_reg));
278 
279 	sc->sc_vramsize = sc->sc_physadr[CG14_PXL_IDX].sbr_size;
280 	fb->fb_type.fb_size = sc->sc_vramsize;
281 
282 	printf(": %d MB VRAM", (uint32_t)(sc->sc_vramsize >> 20));
283 	/*
284 	 * Now map in the 8 useful pages of registers
285 	 */
286 	if (sa->sa_size < 0x10000) {
287 #ifdef DIAGNOSTIC
288 		printf("warning: can't find all cgfourteen registers...\n");
289 #endif
290 		sa->sa_size = 0x10000;
291 	}
292 	if (sbus_bus_map(sa->sa_bustag, sa->sa_slot,
293 			 sa->sa_offset,
294 			 sa->sa_size,
295 			 BUS_SPACE_MAP_LINEAR,
296 			 &bh) != 0) {
297 		printf("%s: cannot map control registers\n",
298 		    device_xname(self));
299 		return;
300 	}
301 	sc->sc_regh = bh;
302 	sc->sc_regaddr = BUS_ADDR(sa->sa_slot, sa->sa_offset);
303 	sc->sc_fbaddr = BUS_ADDR(sc->sc_physadr[CG14_PXL_IDX].sbr_slot,
304 				sc->sc_physadr[CG14_PXL_IDX].sbr_offset);
305 
306 	sc->sc_ctl   = (struct cg14ctl  *) (bh);
307 	sc->sc_hwc   = (struct cg14curs *) (bh + CG14_OFFSET_CURS);
308 	sc->sc_dac   = (struct cg14dac  *) (bh + CG14_OFFSET_DAC);
309 	sc->sc_xlut  = (struct cg14xlut *) (bh + CG14_OFFSET_XLUT);
310 	sc->sc_clut1 = (struct cg14clut *) (bh + CG14_OFFSET_CLUT1);
311 	sc->sc_clut2 = (struct cg14clut *) (bh + CG14_OFFSET_CLUT2);
312 	sc->sc_clut3 = (struct cg14clut *) (bh + CG14_OFFSET_CLUT3);
313 	sc->sc_clutincr =        (u_int *) (bh + CG14_OFFSET_CLUTINCR);
314 
315 	/*
316 	 * Let the user know that we're here
317 	 */
318 	printf(": %dx%d",
319 		fb->fb_type.fb_width, fb->fb_type.fb_height);
320 
321 	/*
322 	 * Enable the video.
323 	 */
324 	cg14_set_video(sc, 1);
325 
326 	/*
327 	 * Grab the initial colormap
328 	 */
329 	lut = sc->sc_clut1->clut_lut;
330 	for (i = 0; i < CG14_CLUT_SIZE; i++)
331 		sc->sc_cmap.cm_chip[i] = lut[i];
332 
333 	/* See if we're the console */
334         isconsole = fb_is_console(node);
335 
336 #if NWSDISPLAY > 0
337 	prom_getprop(sa->sa_node, "address", 4, &items, &ptr);
338 	if (fbva[1] == 0) {
339 		if (sbus_bus_map( sc->sc_bustag,
340 		    sc->sc_physadr[CG14_PXL_IDX].sbr_slot,
341 		    sc->sc_physadr[CG14_PXL_IDX].sbr_offset,
342 		    sc->sc_vramsize, BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_LARGE,
343 		    &bh) != 0) {
344 			printf("%s: cannot map pixels\n",
345 				device_xname(sc->sc_dev));
346 			return;
347 		}
348 		sc->sc_fb.fb_pixels = bus_space_vaddr(sc->sc_bustag, bh);
349 	} else {
350 		sc->sc_fb.fb_pixels = (void *)fbva[1];
351 	}
352 
353 	if (isconsole)
354 		printf(" (console)\n");
355 	else
356 		printf("\n");
357 
358 	ver = sc->sc_ctl->ctl_rsr & CG14_RSR_REVMASK;
359 	impl = sc->sc_ctl->ctl_rsr & CG14_RSR_IMPLMASK;
360 	aprint_normal_dev(sc->sc_dev, "rev %d, %d CLUTs\n",
361 		ver == 0 ? 1 : 2,
362 		(impl & 1) == 0 ? 2 : 3);
363 
364 	sc->sc_depth = 8;
365 
366 #if NSX > 0
367 	/* see if we've got an SX to help us */
368 	sc->sc_sx = NULL;
369 	for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST);
370 	    dv != NULL;
371 	    dv = deviter_next(&di)) {
372 		if (device_is_a(dv, "sx")) {
373 			sc->sc_sx = device_private(dv);
374 		}
375 	}
376 	deviter_release(&di);
377 	if (sc->sc_sx != NULL) {
378 		sc->sc_fb_paddr = bus_space_mmap(sc->sc_bustag,
379 		    sc->sc_fbaddr, 0, 0, 0) & 0xfffff000;
380 		aprint_normal_dev(sc->sc_dev, "using %s\n",
381 		    device_xname(sc->sc_sx->sc_dev));
382 		aprint_normal_dev(sc->sc_dev, "fb paddr: %08x\n",
383 		    sc->sc_fb_paddr);
384 		sx_write(sc->sc_sx, SX_PAGE_BOUND_LOWER, sc->sc_fb_paddr);
385 		sx_write(sc->sc_sx, SX_PAGE_BOUND_UPPER,
386 		    sc->sc_fb_paddr + 0x03ffffff);
387 	}
388 	cg14_wait_idle(sc);
389 #endif
390 	cg14_setup_wsdisplay(sc, isconsole);
391 #endif
392 
393 	/* Attach to /dev/fb */
394 	fb_attach(&sc->sc_fb, isconsole);
395 
396 }
397 
398 /*
399  * Keep track of the number of opens made. In the 24-bit driver, we need to
400  * switch to 24-bit mode on the first open, and switch back to 8-bit on
401  * the last close. This kind of nonsense is needed to give screenblank
402  * a fighting chance of working.
403  */
404 
405 int
406 cgfourteenopen(dev_t dev, int flags, int mode, struct lwp *l)
407 {
408 	struct cgfourteen_softc *sc;
409 	int oldopens;
410 
411 	sc = device_lookup_private(&cgfourteen_cd, minor(dev));
412 	if (sc == NULL)
413 		return(ENXIO);
414 	oldopens = sc->sc_opens++;
415 
416 	/* Setup the cg14 as we want it, and save the original PROM state */
417 	if (oldopens == 0)	/* first open only, to make screenblank work */
418 		cg14_init(sc);
419 
420 	return (0);
421 }
422 
423 int
424 cgfourteenclose(dev_t dev, int flags, int mode, struct lwp *l)
425 {
426 	struct cgfourteen_softc *sc =
427 	    device_lookup_private(&cgfourteen_cd, minor(dev));
428 	int opens;
429 
430 	opens = --sc->sc_opens;
431 	if (sc->sc_opens < 0)
432 		opens = sc->sc_opens = 0;
433 
434 	/*
435 	 * Restore video state to make the PROM happy, on last close.
436 	 */
437 	if (opens == 0) {
438 		cg14_reset(sc);
439 #if NSX > 0
440 		if (sc->sc_sx)
441 			glyphcache_wipe(&sc->sc_gc);
442 #endif
443 	}
444 	return (0);
445 }
446 
447 int
448 cgfourteenioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
449 {
450 	struct cgfourteen_softc *sc =
451 	    device_lookup_private(&cgfourteen_cd, minor(dev));
452 	struct fbgattr *fba;
453 	int error;
454 
455 	switch (cmd) {
456 
457 	case FBIOGTYPE:
458 		*(struct fbtype *)data = sc->sc_fb.fb_type;
459 		break;
460 
461 	case FBIOGATTR:
462 		fba = (struct fbgattr *)data;
463 		fba->real_type = FBTYPE_MDICOLOR;
464 		fba->owner = 0;		/* XXX ??? */
465 		fba->fbtype = sc->sc_fb.fb_type;
466 		fba->sattr.flags = 0;
467 		fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
468 		fba->sattr.dev_specific[0] = -1;
469 		fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
470 		fba->emu_types[1] = -1;
471 		break;
472 
473 	case FBIOGETCMAP:
474 		return(cg14_get_cmap((struct fbcmap *)data, &sc->sc_cmap,
475 				     CG14_CLUT_SIZE));
476 
477 	case FBIOPUTCMAP:
478 		/* copy to software map */
479 #define p ((struct fbcmap *)data)
480 		error = cg14_put_cmap(p, &sc->sc_cmap, CG14_CLUT_SIZE);
481 		if (error)
482 			return (error);
483 		/* now blast them into the chip */
484 		/* XXX should use retrace interrupt */
485 		if (sc->sc_depth == 8)
486 			cg14_load_hwcmap(sc, p->index, p->count);
487 #undef p
488 		break;
489 
490 	case FBIOGVIDEO:
491 		*(int *)data = cg14_get_video(sc);
492 		break;
493 
494 	case FBIOSVIDEO:
495 		cg14_set_video(sc, *(int *)data);
496 		break;
497 
498 	case CG14_SET_PIXELMODE: {
499 		int depth = *(int *)data;
500 
501 		if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)
502 			return EINVAL;
503 
504 		cg14_set_depth(sc, depth);
505 		cg14_init_cmap(sc);
506 		}
507 		break;
508 	default:
509 		return (ENOTTY);
510 	}
511 	return (0);
512 }
513 
514 /*
515  * Undo the effect of an FBIOSVIDEO that turns the video off.
516  */
517 static void
518 cgfourteenunblank(device_t dev)
519 {
520 	struct cgfourteen_softc *sc = device_private(dev);
521 
522 	cg14_set_video(sc, 1);
523 #if NWSDISPLAY > 0
524 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) {
525 		cg14_set_depth(sc, 8);
526 		cg14_init_cmap(sc);
527 		vcons_redraw_screen(sc->sc_vd.active);
528 		sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
529 	}
530 #endif
531 }
532 
533 /*
534  * Return the address that would map the given device at the given
535  * offset, allowing for the given protection, or return -1 for error.
536   */
537 paddr_t
538 cgfourteenmmap(dev_t dev, off_t off, int prot)
539 {
540 	struct cgfourteen_softc *sc =
541 	    device_lookup_private(&cgfourteen_cd, minor(dev));
542 	off_t offset = -1;
543 
544 	if (off & PGOFSET)
545 		panic("cgfourteenmmap");
546 
547 	if (off < 0)
548 		return (-1);
549 
550 	if (off >= 0 && off < 0x10000) {
551 		offset = sc->sc_regaddr;
552 	} else if (off >= CG14_CURSOR_VOFF &&
553 		   off < (CG14_CURSOR_VOFF + 0x1000)) {
554 		offset = sc->sc_regaddr + CG14_OFFSET_CURS;
555 		off -= CG14_CURSOR_VOFF;
556 	} else if (off >= CG14_DIRECT_VOFF &&
557 		   off < (CG14_DIRECT_VOFF + sc->sc_vramsize)) {
558 		offset = sc->sc_fbaddr + CG14_FB_VRAM;
559 		off -= CG14_DIRECT_VOFF;
560 	} else if (off >= CG14_BGR_VOFF &&
561 		   off < (CG14_BGR_VOFF + sc->sc_vramsize)) {
562 		offset = sc->sc_fbaddr + CG14_FB_CBGR;
563 		off -= CG14_BGR_VOFF;
564 	} else if (off >= CG14_X32_VOFF &&
565 		   off < (CG14_X32_VOFF + (sc->sc_vramsize >> 2))) {
566 		offset = sc->sc_fbaddr + CG14_FB_PX32;
567 		off -= CG14_X32_VOFF;
568 	} else if (off >= CG14_B32_VOFF &&
569 		   off < (CG14_B32_VOFF + (sc->sc_vramsize >> 2))) {
570 		offset = sc->sc_fbaddr + CG14_FB_PB32;
571 		off -= CG14_B32_VOFF;
572 	} else if (off >= CG14_G32_VOFF &&
573 		   off < (CG14_G32_VOFF + (sc->sc_vramsize >> 2))) {
574 		offset = sc->sc_fbaddr + CG14_FB_PG32;
575 		off -= CG14_G32_VOFF;
576 	} else if (off >= CG14_R32_VOFF &&
577 		   off < CG14_R32_VOFF + (sc->sc_vramsize >> 2)) {
578 		offset = sc->sc_fbaddr + CG14_FB_PR32;
579 		off -= CG14_R32_VOFF;
580 #if NSX > 0
581 	/*
582 	 * for convenience we also map the SX ranges here:
583 	 * - one page userland registers
584 	 * - CG14-sized IO space at 0x800000000 ( not a typo, it's above 4GB )
585 	 */
586 	} else if (sc->sc_sx == NULL) {
587 		return -1;
588 	} else if (off >= CG14_SXREG_VOFF &&
589 		   off < (CG14_SXREG_VOFF + 0x400)) {
590 		return (bus_space_mmap(sc->sc_sx->sc_tag, sc->sc_sx->sc_uregs,
591 			0, prot, BUS_SPACE_MAP_LINEAR));
592 	} else if (off >= CG14_SXIO_VOFF &&
593 		   off < (CG14_SXIO_VOFF + 0x03ffffff)) {
594 		off -= CG14_SXIO_VOFF;
595 		return (bus_space_mmap(sc->sc_sx->sc_tag, 0x800000000LL,
596 			sc->sc_fb_paddr + off,
597 			prot, BUS_SPACE_MAP_LINEAR));
598 #endif
599 	} else
600 		return -1;
601 
602 	return (bus_space_mmap(sc->sc_bustag, offset, off, prot,
603 		    BUS_SPACE_MAP_LINEAR));
604 }
605 
606 int
607 cgfourteenpoll(dev_t dev, int events, struct lwp *l)
608 {
609 
610 	return (seltrue(dev, events, l));
611 }
612 
613 /*
614  * Miscellaneous helper functions
615  */
616 
617 /* Initialize the framebuffer, storing away useful state for later reset */
618 static void
619 cg14_init(struct cgfourteen_softc *sc)
620 {
621 	cg14_set_depth(sc, 32);
622 	cg14_init_cmap(sc);
623 }
624 
625 static void
626 /* Restore the state saved on cg14_init */
627 cg14_reset(struct cgfourteen_softc *sc)
628 {
629 	cg14_set_depth(sc, 8);
630 	cg14_init_cmap(sc);
631 }
632 
633 /* Enable/disable video display; power down monitor if DPMS-capable */
634 static void
635 cg14_set_video(struct cgfourteen_softc *sc, int enable)
636 {
637 	/*
638 	 * We can only use DPMS to power down the display if the chip revision
639 	 * is greater than 0.
640 	 */
641 	if (enable) {
642 		if ((sc->sc_ctl->ctl_rsr & CG14_RSR_REVMASK) > 0)
643 			sc->sc_ctl->ctl_mctl |= (CG14_MCTL_ENABLEVID |
644 						 CG14_MCTL_POWERCTL);
645 		else
646 			sc->sc_ctl->ctl_mctl |= CG14_MCTL_ENABLEVID;
647 	} else {
648 		if ((sc->sc_ctl->ctl_rsr & CG14_RSR_REVMASK) > 0)
649 			sc->sc_ctl->ctl_mctl &= ~(CG14_MCTL_ENABLEVID |
650 						  CG14_MCTL_POWERCTL);
651 		else
652 			sc->sc_ctl->ctl_mctl &= ~CG14_MCTL_ENABLEVID;
653 	}
654 }
655 
656 /* Get status of video display */
657 static int
658 cg14_get_video(struct cgfourteen_softc *sc)
659 {
660 	return ((sc->sc_ctl->ctl_mctl & CG14_MCTL_ENABLEVID) != 0);
661 }
662 
663 /* Read the software shadow colormap */
664 static int
665 cg14_get_cmap(struct fbcmap *p, union cg14cmap *cm, int cmsize)
666 {
667         u_int i, start, count;
668         u_char *cp;
669         int error;
670 
671         start = p->index;
672         count = p->count;
673         if (start >= cmsize || count > cmsize - start)
674                 return (EINVAL);
675 
676         for (cp = &cm->cm_map[start][0], i = 0; i < count; cp += 4, i++) {
677                 error = copyout(&cp[3], &p->red[i], 1);
678                 if (error)
679                         return error;
680                 error = copyout(&cp[2], &p->green[i], 1);
681                 if (error)
682                         return error;
683                 error = copyout(&cp[1], &p->blue[i], 1);
684                 if (error)
685                         return error;
686         }
687         return (0);
688 }
689 
690 /* Write the software shadow colormap */
691 static int
692 cg14_put_cmap(struct fbcmap *p, union cg14cmap *cm, int cmsize)
693 {
694         u_int i, start, count;
695         u_char *cp;
696         u_char cmap[256][4];
697         int error;
698 
699         start = p->index;
700         count = p->count;
701         if (start >= cmsize || count > cmsize - start)
702                 return (EINVAL);
703 
704         memcpy(&cmap, &cm->cm_map, sizeof cmap);
705         for (cp = &cmap[start][0], i = 0; i < count; cp += 4, i++) {
706                 error = copyin(&p->red[i], &cp[3], 1);
707                 if (error)
708                         return error;
709                 error = copyin(&p->green[i], &cp[2], 1);
710                 if (error)
711                         return error;
712                 error = copyin(&p->blue[i], &cp[1], 1);
713                 if (error)
714                         return error;
715                 cp[0] = 0;      /* no alpha channel */
716         }
717         memcpy(&cm->cm_map, &cmap, sizeof cmap);
718         return (0);
719 }
720 
721 static void
722 cg14_load_hwcmap(struct cgfourteen_softc *sc, int start, int ncolors)
723 {
724 	/* XXX switch to auto-increment, and on retrace intr */
725 
726 	/* Setup pointers to source and dest */
727 	uint32_t *colp = &sc->sc_cmap.cm_chip[start];
728 	volatile uint32_t *lutp = &sc->sc_clut1->clut_lut[start];
729 
730 	/* Copy by words */
731 	while (--ncolors >= 0)
732 		*lutp++ = *colp++;
733 }
734 
735 static void
736 cg14_setup_wsdisplay(struct cgfourteen_softc *sc, int is_cons)
737 {
738 	struct wsemuldisplaydev_attach_args aa;
739 	struct rasops_info *ri;
740 	long defattr;
741 
742  	sc->sc_defaultscreen_descr = (struct wsscreen_descr){
743 		"default",
744 		0, 0,
745 		NULL,
746 		8, 16,
747 		WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE |
748 		WSSCREEN_RESIZE,
749 		NULL
750 	};
751 
752 	cg14_set_depth(sc, 8);
753 
754 	sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
755 	sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
756 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
757 	vcons_init(&sc->sc_vd, sc, &sc->sc_defaultscreen_descr,
758 	    &cg14_accessops);
759 	sc->sc_vd.init_screen = cg14_init_screen;
760 	sc->sc_vd.show_screen_cookie = &sc->sc_gc;
761 	sc->sc_vd.show_screen_cb = glyphcache_adapt;
762 
763 	ri = &sc->sc_console_screen.scr_ri;
764 
765 	sc->sc_gc.gc_bitblt = cg14_bitblt_gc;
766 	sc->sc_gc.gc_blitcookie = sc;
767 	sc->sc_gc.gc_rectfill = cg14_rectfill_a;
768 	sc->sc_gc.gc_rop = 0xc;
769 
770 	vcons_init_screen(&sc->sc_vd, &sc->sc_console_screen, 1,
771 	    &defattr);
772 
773 	/* clear the screen with the default background colour */
774 	if (sc->sc_sx != NULL) {
775 		cg14_rectfill(sc, 0, 0, ri->ri_width, ri->ri_height,
776 			ri->ri_devcmap[(defattr >> 16) & 0xf]);
777 	} else {
778 		memset(sc->sc_fb.fb_pixels,
779 		       ri->ri_devcmap[(defattr >> 16) & 0xf],
780 		       ri->ri_stride * ri->ri_height);
781 	}
782 	sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
783 
784 	sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
785 	sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
786 	sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
787 	sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
788 	glyphcache_init_align(&sc->sc_gc, sc->sc_fb.fb_type.fb_height + 5,
789 		(sc->sc_vramsize / sc->sc_fb.fb_type.fb_width) -
790 		 sc->sc_fb.fb_type.fb_height - 5,
791 		sc->sc_fb.fb_type.fb_width,
792 		ri->ri_font->fontwidth,
793 		ri->ri_font->fontheight,
794 		defattr, 4);
795 
796 	if (is_cons) {
797 		wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
798 		    defattr);
799 		vcons_replay_msgbuf(&sc->sc_console_screen);
800 	}
801 
802 	aa.console = is_cons;
803 	aa.scrdata = &sc->sc_screenlist;
804 	aa.accessops = &cg14_accessops;
805 	aa.accesscookie = &sc->sc_vd;
806 
807 	config_found(sc->sc_dev, &aa, wsemuldisplaydevprint, CFARGS_NONE);
808 
809 	/*
810 	 * do this here since any output through firmware calls will mess
811 	 * with XLUT settings
812 	 */
813 	cg14_init_cmap(sc);
814 }
815 
816 static void
817 cg14_init_cmap(struct cgfourteen_softc *sc)
818 {
819 	struct rasops_info *ri = &sc->sc_console_screen.scr_ri;
820 	int i, j = 0;
821 	uint32_t r, g, b, c, cc;
822 	uint8_t cmap[768];
823 
824 	if (sc->sc_depth == 16) {
825 		/* construct an R5G6B5 palette in CLUT1/2 */
826 		for (i = 0; i < 0x100; i++) {
827 			/* upper byte first */
828 			r = (i & 0xf8);	/* red component */
829 			r |= r >> 5;		/* fill lower bits so 0xf8 */
830 			c = 0x40000000 | r;	/* becomes 0xff */
831 			g = i & 0x7;		/* upper 3 bits of green */
832 			g |= g << 3;		/* 0x003f */
833 			c |= ((g << 10) & 0xf000);	/* make it 4 */
834 			sc->sc_clut1->clut_lut[i] = c;
835 			/* lower byte */
836 			g = i & 0xe0;		/* lower half of green */
837 			g |= g >> 3;
838 			cc = 0x40000000 | ((g << 4) & 0x0f00);
839 			b = i & 0x1f;		/* and blue */
840 			b = (b << 3) | (b >> 2);
841 			cc |= (b << 16);
842 			sc->sc_clut2->clut_lut[i] = cc;
843 		}
844 
845 		/*
846 		 * because we alpha blend our components everything is half
847 		 * intensity, fix that with the gamma LUT
848 		 */
849 
850 		sc->sc_dac->dac_mode &= ~6;	/* 8bit mode, for simlicity */
851 		for (i = 0; i < 128; i++) {
852 			sc->sc_dac->dac_addr = i;
853 			sc->sc_dac->dac_gammalut = i << 1;
854 			sc->sc_dac->dac_gammalut = i << 1;
855 			sc->sc_dac->dac_gammalut = i << 1;
856 		}
857 
858 		/* finally fill the XLUT */
859 		for (i = 0; i < 256; i++)
860 		     sc->sc_xlut->xlut_lut[i] =
861 		         CG14_LEFT_CLUT2 | CG14_LEFT_B |
862 		         CG14_RIGHT_CLUT1 | CG14_RIGHT_X;
863 	} else {
864 		/* in 8 or 24bit put a linear ramp in the gamma LUT */
865 		sc->sc_dac->dac_mode &= ~6;	/* 8bit mode, for simlicity */
866 		for (i = 0; i < 256; i++) {
867 			sc->sc_dac->dac_addr = i;
868 			sc->sc_dac->dac_gammalut = i;
869 			sc->sc_dac->dac_gammalut = i;
870 			sc->sc_dac->dac_gammalut = i;
871 		}
872 
873 		/* and zero the XLUT */
874 		for (i = 0; i < 256; i++)
875 		     sc->sc_xlut->xlut_lut[i] = 0;
876 
877 		if (sc->sc_depth == 8) {
878 			rasops_get_cmap(ri, cmap, sizeof(cmap));
879 
880 			for (i = 0; i < 256; i++) {
881 				sc->sc_cmap.cm_map[i][3] = cmap[j];
882 				sc->sc_cmap.cm_map[i][2] = cmap[j + 1];
883 				sc->sc_cmap.cm_map[i][1] = cmap[j + 2];
884 				j += 3;
885 			}
886 			cg14_load_hwcmap(sc, 0, 256);
887 		}
888 	}
889 }
890 
891 static int
892 cg14_putcmap(struct cgfourteen_softc *sc, struct wsdisplay_cmap *cm)
893 {
894 	u_int index = cm->index;
895 	u_int count = cm->count;
896 	int i, error;
897 	u_char rbuf[256], gbuf[256], bbuf[256];
898 
899 	if (cm->index >= 256 || cm->count > 256 ||
900 	    (cm->index + cm->count) > 256)
901 		return EINVAL;
902 	error = copyin(cm->red, &rbuf[index], count);
903 	if (error)
904 		return error;
905 	error = copyin(cm->green, &gbuf[index], count);
906 	if (error)
907 		return error;
908 	error = copyin(cm->blue, &bbuf[index], count);
909 	if (error)
910 		return error;
911 
912 	for (i = 0; i < count; i++) {
913 		sc->sc_cmap.cm_map[index][3] = rbuf[index];
914 		sc->sc_cmap.cm_map[index][2] = gbuf[index];
915 		sc->sc_cmap.cm_map[index][1] = bbuf[index];
916 
917 		index++;
918 	}
919 
920 	if (sc->sc_depth == 8)
921 		cg14_load_hwcmap(sc, 0, 256);
922 
923 	return 0;
924 }
925 
926 static int
927 cg14_getcmap(struct cgfourteen_softc *sc, struct wsdisplay_cmap *cm)
928 {
929 	uint8_t rbuf[256], gbuf[256], bbuf[256];
930 	u_int index = cm->index;
931 	u_int count = cm->count;
932 	int error, i;
933 
934 	if (index >= 255 || count > 256 || index + count > 256)
935 		return EINVAL;
936 
937 
938 	for (i = 0; i < count; i++) {
939 		rbuf[i] = sc->sc_cmap.cm_map[index][3];
940 		gbuf[i] = sc->sc_cmap.cm_map[index][2];
941 		bbuf[i] = sc->sc_cmap.cm_map[index][1];
942 
943 		index++;
944 	}
945 	error = copyout(rbuf,   cm->red,   count);
946 	if (error)
947 		return error;
948 	error = copyout(gbuf, cm->green, count);
949 	if (error)
950 		return error;
951 	error = copyout(bbuf,  cm->blue,  count);
952 	if (error)
953 		return error;
954 
955 	return 0;
956 }
957 
958 static int
959 cg14_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
960 	struct lwp *l)
961 {
962 	struct vcons_data *vd = v;
963 	struct cgfourteen_softc *sc = vd->cookie;
964 	struct wsdisplay_fbinfo *wdf;
965 	struct vcons_screen *ms = vd->active;
966 
967 	switch (cmd) {
968 
969 		case WSDISPLAYIO_GTYPE:
970 			*(uint32_t *)data = WSDISPLAY_TYPE_SUNCG14;
971 			return 0;
972 
973 		case WSDISPLAYIO_GINFO:
974 			wdf = (void *)data;
975 			wdf->height = ms->scr_ri.ri_height;
976 			wdf->width = ms->scr_ri.ri_width;
977 			wdf->depth = 32;
978 			wdf->cmsize = 256;
979 			return 0;
980 
981 		case WSDISPLAYIO_GETCMAP:
982 			return cg14_getcmap(sc,
983 			    (struct wsdisplay_cmap *)data);
984 
985 		case WSDISPLAYIO_PUTCMAP:
986 			return cg14_putcmap(sc,
987 			    (struct wsdisplay_cmap *)data);
988 
989 		case WSDISPLAYIO_LINEBYTES:
990 			*(u_int *)data = ms->scr_ri.ri_stride << 2;
991 			return 0;
992 
993 		case WSDISPLAYIO_SMODE:
994 			{
995 				int new_mode = *(int*)data;
996 				if (new_mode != sc->sc_mode) {
997 					sc->sc_mode = new_mode;
998 					if(new_mode == WSDISPLAYIO_MODE_EMUL) {
999 						bus_space_write_1(sc->sc_bustag,
1000 						    sc->sc_regh,
1001 						    CG14_CURSOR_CONTROL, 0);
1002 
1003 						cg14_set_depth(sc, 8);
1004 						cg14_init_cmap(sc);
1005 #if NSX > 0
1006 						if (sc->sc_sx)
1007 							glyphcache_wipe(&sc->sc_gc);
1008 #endif
1009 						vcons_redraw_screen(ms);
1010 					} else {
1011 
1012 						cg14_set_depth(sc, 32);
1013 						cg14_init_cmap(sc);
1014 					}
1015 				}
1016 			}
1017 			return 0;
1018 		case WSDISPLAYIO_SVIDEO:
1019 			cg14_set_video(sc, *(int *)data);
1020 			return 0;
1021 		case WSDISPLAYIO_GVIDEO:
1022 			*(int *)data = cg14_get_video(sc) ?
1023 			    WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF;
1024 			return 0;
1025 		case WSDISPLAYIO_GCURPOS:
1026 			{
1027 				struct wsdisplay_curpos *cp = (void *)data;
1028 
1029 				cp->x = sc->sc_cursor.cc_pos.x;
1030 				cp->y = sc->sc_cursor.cc_pos.y;
1031 			}
1032 			return 0;
1033 		case WSDISPLAYIO_SCURPOS:
1034 			{
1035 				struct wsdisplay_curpos *cp = (void *)data;
1036 
1037 				cg14_move_cursor(sc, cp->x, cp->y);
1038 			}
1039 			return 0;
1040 		case WSDISPLAYIO_GCURMAX:
1041 			{
1042 				struct wsdisplay_curpos *cp = (void *)data;
1043 
1044 				cp->x = 32;
1045 				cp->y = 32;
1046 			}
1047 			return 0;
1048 		case WSDISPLAYIO_SCURSOR:
1049 			{
1050 				struct wsdisplay_cursor *cursor = (void *)data;
1051 
1052 				return cg14_do_cursor(sc, cursor);
1053 			}
1054 		case PCI_IOC_CFGREAD:
1055 		case PCI_IOC_CFGWRITE:
1056 			return EINVAL;
1057 
1058 	}
1059 	return EPASSTHROUGH;
1060 }
1061 
1062 static paddr_t
1063 cg14_mmap(void *v, void *vs, off_t offset, int prot)
1064 {
1065 	struct vcons_data *vd = v;
1066 	struct cgfourteen_softc *sc = vd->cookie;
1067 
1068 	/* allow mmap()ing the full framebuffer, not just what we use */
1069 	if (offset < sc->sc_vramsize)
1070 		return bus_space_mmap(sc->sc_bustag,
1071 		    BUS_ADDR(sc->sc_physadr[CG14_PXL_IDX].sbr_slot,
1072 		      sc->sc_physadr[CG14_PXL_IDX].sbr_offset),
1073 		    offset + CG14_FB_CBGR, prot, BUS_SPACE_MAP_LINEAR);
1074 
1075 	return -1;
1076 }
1077 
1078 static void
1079 cg14_init_screen(void *cookie, struct vcons_screen *scr,
1080     int existing, long *defattr)
1081 {
1082 	struct cgfourteen_softc *sc = cookie;
1083 	struct rasops_info *ri = &scr->scr_ri;
1084 
1085 	ri->ri_depth = sc->sc_depth;
1086 	ri->ri_width = sc->sc_fb.fb_type.fb_width;
1087 	ri->ri_height = sc->sc_fb.fb_type.fb_height;
1088 	ri->ri_stride = ri->ri_width * (sc->sc_depth >> 3);
1089 	ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
1090 
1091 	ri->ri_bits = (char *)sc->sc_fb.fb_pixels;
1092 
1093 	scr->scr_flags |= VCONS_LOADFONT;
1094 #if NSX > 0
1095 	ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA | RI_PREFER_ALPHA;
1096 
1097 	/*
1098 	 * unaligned copies with horizontal overlap are slow, so don't bother
1099 	 * handling them in cg14_bitblt() and use putchar() instead
1100 	 */
1101 	if (sc->sc_sx != NULL) {
1102 		scr->scr_flags |= VCONS_NO_COPYCOLS;
1103 	} else
1104 #endif
1105 		scr->scr_flags |= VCONS_DONT_READ;
1106 
1107 	if (existing) {
1108 		ri->ri_flg |= RI_CLEAR;
1109 	}
1110 
1111 	rasops_init(ri, 0, 0);
1112 	ri->ri_caps = WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE |
1113 		      WSSCREEN_RESIZE;
1114 
1115 	rasops_reconfig(ri,
1116 	    sc->sc_fb.fb_type.fb_height / ri->ri_font->fontheight,
1117 	    sc->sc_fb.fb_type.fb_width / ri->ri_font->fontwidth);
1118 
1119 	ri->ri_hw = scr;
1120 #if NSX > 0
1121 	if ((sc->sc_sx != NULL) && (sc->sc_depth == 8)) {
1122 		ri->ri_ops.copyrows = cg14_copyrows;
1123 		ri->ri_ops.copycols = cg14_copycols;
1124 		ri->ri_ops.eraserows = cg14_eraserows;
1125 		ri->ri_ops.erasecols = cg14_erasecols;
1126 		ri->ri_ops.cursor = cg14_cursor;
1127 		if (FONT_IS_ALPHA(ri->ri_font)) {
1128 			ri->ri_ops.putchar = cg14_putchar_aa;
1129 		} else
1130 			ri->ri_ops.putchar = cg14_putchar;
1131 	}
1132 #endif /* NSX > 0 */
1133 }
1134 
1135 static void
1136 cg14_set_depth(struct cgfourteen_softc *sc, int depth)
1137 {
1138 
1139 	/* init mask */
1140 	if (sc->sc_sx != NULL) {
1141 		sc->sc_mask = 0xffffffff;
1142 		sx_write(sc->sc_sx, SX_QUEUED(R_MASK), sc->sc_mask);
1143 	}
1144 
1145 	if (sc->sc_depth == depth)
1146 		return;
1147 
1148 	switch (depth) {
1149 		case 8:
1150 			bus_space_write_1(sc->sc_bustag, sc->sc_regh,
1151 			    CG14_MCTL, CG14_MCTL_ENABLEVID |
1152 			    CG14_MCTL_PIXMODE_8 | CG14_MCTL_POWERCTL);
1153 			sc->sc_depth = 8;
1154 			break;
1155 		case 16:
1156 			bus_space_write_1(sc->sc_bustag, sc->sc_regh,
1157 			    CG14_MCTL, CG14_MCTL_ENABLEVID |
1158 			    CG14_MCTL_PIXMODE_16 | CG14_MCTL_POWERCTL);
1159 			sc->sc_depth = 16;
1160 			break;
1161 		case 32:
1162 			bus_space_write_1(sc->sc_bustag, sc->sc_regh,
1163 			    CG14_MCTL, CG14_MCTL_ENABLEVID |
1164 			    CG14_MCTL_PIXMODE_32 | CG14_MCTL_POWERCTL);
1165 			sc->sc_depth = 32;
1166 			break;
1167 		default:
1168 			printf("%s: can't change to depth %d\n",
1169 			    device_xname(sc->sc_dev), depth);
1170 			return;
1171 	}
1172 
1173 }
1174 
1175 static void
1176 cg14_move_cursor(struct cgfourteen_softc *sc, int x, int y)
1177 {
1178 	uint32_t pos;
1179 
1180 	sc->sc_cursor.cc_pos.x = x;
1181 	sc->sc_cursor.cc_pos.y = y;
1182 	pos = ((sc->sc_cursor.cc_pos.x - sc->sc_cursor.cc_hot.x ) << 16) |
1183 	      ((sc->sc_cursor.cc_pos.y - sc->sc_cursor.cc_hot.y ) & 0xffff);
1184 	bus_space_write_4(sc->sc_bustag, sc->sc_regh, CG14_CURSOR_X, pos);
1185 }
1186 
1187 static int
1188 cg14_do_cursor(struct cgfourteen_softc *sc, struct wsdisplay_cursor *cur)
1189 {
1190 	if (cur->which & WSDISPLAY_CURSOR_DOCUR) {
1191 
1192 		bus_space_write_1(sc->sc_bustag, sc->sc_regh,
1193 		    CG14_CURSOR_CONTROL, cur->enable ? CG14_CRSR_ENABLE : 0);
1194 	}
1195 	if (cur->which & WSDISPLAY_CURSOR_DOHOT) {
1196 
1197 		sc->sc_cursor.cc_hot.x = cur->hot.x;
1198 		sc->sc_cursor.cc_hot.y = cur->hot.y;
1199 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
1200 	}
1201 	if (cur->which & WSDISPLAY_CURSOR_DOPOS) {
1202 
1203 		cg14_move_cursor(sc, cur->pos.x, cur->pos.y);
1204 	}
1205 	if (cur->which & WSDISPLAY_CURSOR_DOCMAP) {
1206 		int i;
1207 		uint32_t val;
1208 
1209 		if ((cur->cmap.index > 2) || (cur->cmap.count > 3) ||
1210 		    (cur->cmap.index + cur->cmap.count > 3))
1211 			return EINVAL;
1212 
1213 		for (i = 0; i < uimin(cur->cmap.count, 3); i++) {
1214 			val = (cur->cmap.red[i] ) |
1215 			      (cur->cmap.green[i] << 8) |
1216 			      (cur->cmap.blue[i] << 16);
1217 			bus_space_write_4(sc->sc_bustag, sc->sc_regh,
1218 			    CG14_CURSOR_COLOR1 + ((i + cur->cmap.index) << 2),
1219 			    val);
1220 		}
1221 	}
1222 	if (cur->which & WSDISPLAY_CURSOR_DOSHAPE) {
1223 		uint32_t buffer[32], latch, tmp;
1224 		int i;
1225 
1226 		copyin(cur->mask, buffer, 128);
1227 		for (i = 0; i < 32; i++) {
1228 			latch = 0;
1229 			tmp = buffer[i] & 0x80808080;
1230 			latch |= tmp >> 7;
1231 			tmp = buffer[i] & 0x40404040;
1232 			latch |= tmp >> 5;
1233 			tmp = buffer[i] & 0x20202020;
1234 			latch |= tmp >> 3;
1235 			tmp = buffer[i] & 0x10101010;
1236 			latch |= tmp >> 1;
1237 			tmp = buffer[i] & 0x08080808;
1238 			latch |= tmp << 1;
1239 			tmp = buffer[i] & 0x04040404;
1240 			latch |= tmp << 3;
1241 			tmp = buffer[i] & 0x02020202;
1242 			latch |= tmp << 5;
1243 			tmp = buffer[i] & 0x01010101;
1244 			latch |= tmp << 7;
1245 			bus_space_write_4(sc->sc_bustag, sc->sc_regh,
1246 			    CG14_CURSOR_PLANE0 + (i << 2), latch);
1247 		}
1248 		copyin(cur->image, buffer, 128);
1249 		for (i = 0; i < 32; i++) {
1250 			latch = 0;
1251 			tmp = buffer[i] & 0x80808080;
1252 			latch |= tmp >> 7;
1253 			tmp = buffer[i] & 0x40404040;
1254 			latch |= tmp >> 5;
1255 			tmp = buffer[i] & 0x20202020;
1256 			latch |= tmp >> 3;
1257 			tmp = buffer[i] & 0x10101010;
1258 			latch |= tmp >> 1;
1259 			tmp = buffer[i] & 0x08080808;
1260 			latch |= tmp << 1;
1261 			tmp = buffer[i] & 0x04040404;
1262 			latch |= tmp << 3;
1263 			tmp = buffer[i] & 0x02020202;
1264 			latch |= tmp << 5;
1265 			tmp = buffer[i] & 0x01010101;
1266 			latch |= tmp << 7;
1267 			bus_space_write_4(sc->sc_bustag, sc->sc_regh,
1268 			    CG14_CURSOR_PLANE1 + (i << 2), latch);
1269 		}
1270 	}
1271 	return 0;
1272 }
1273 
1274 #if NSX > 0
1275 
1276 static void
1277 cg14_wait_idle(struct cgfourteen_softc *sc)
1278 {
1279 }
1280 
1281 static void
1282 cg14_rectfill(struct cgfourteen_softc *sc, int x, int y, int wi, int he,
1283      uint32_t colour)
1284 {
1285 	uint32_t addr, pptr;
1286 	int line, cnt, pre, words;
1287 	int stride = sc->sc_fb.fb_type.fb_width;
1288 
1289 	addr = sc->sc_fb_paddr + x + stride * y;
1290 	sx_write(sc->sc_sx, SX_QUEUED(8), colour);
1291 	sx_write(sc->sc_sx, SX_QUEUED(9), colour);
1292 	/*
1293 	 * Calculate the number of pixels we need to do one by one
1294 	 * until we're 32bit aligned, then do the rest in 32bit
1295 	 * mode. Assumes that stride is always a multiple of 4.
1296 	 */
1297 	/* TODO: use 32bit writes with byte mask instead */
1298 	pre = addr & 3;
1299 	if (pre != 0) pre = 4 - pre;
1300 	for (line = 0; line < he; line++) {
1301 		pptr = addr;
1302 		cnt = wi;
1303 		if (pre) {
1304 			sxm(SX_STBS, pptr, 8, pre - 1);
1305 			pptr += pre;
1306 			cnt -= pre;
1307 		}
1308 		/* now do the aligned pixels in 32bit chunks */
1309 		while(cnt > 3) {
1310 			words = uimin(32, cnt >> 2);
1311 			sxm(SX_STS, pptr, 8, words - 1);
1312 			pptr += words << 2;
1313 			cnt -= words << 2;
1314 		}
1315 		/* do any remaining pixels byte-wise again */
1316 		if (cnt > 0)
1317 			sxm(SX_STBS, pptr, 8, cnt - 1);
1318 		addr += stride;
1319 	}
1320 }
1321 
1322 static void
1323 cg14_rectfill_a(void *cookie, int dstx, int dsty,
1324     int width, int height, long attr)
1325 {
1326 	struct cgfourteen_softc *sc = cookie;
1327 
1328 	cg14_rectfill(sc, dstx, dsty, width, height,
1329 	    sc->sc_vd.active->scr_ri.ri_devcmap[(attr >> 24 & 0xf)]);
1330 }
1331 
1332 static inline void
1333 cg14_set_mask(struct cgfourteen_softc *sc, uint32_t mask)
1334 {
1335 	if (mask == sc->sc_mask) return;
1336 	sc->sc_mask = mask;
1337 	sx_write(sc->sc_sx, SX_QUEUED(R_MASK), mask);
1338 }
1339 /*
1340  * invert a rectangle, used only to (un)draw the cursor.
1341  * - does a scanline at a time
1342  * - does not handle wi > 64 or wi < 4, not that we need it for our fonts
1343  * - uses all 32bit accesses
1344  */
1345 static void
1346 cg14_invert(struct cgfourteen_softc *sc, int x, int y, int wi, int he)
1347 {
1348 	uint32_t addr, pptr, lmask, rmask;
1349 	int line, cnt, pre, words, pwrds = 0, post, reg;
1350 	int stride = sc->sc_fb.fb_type.fb_width;
1351 
1352 	addr = (sc->sc_fb_paddr + x + stride * y) & ~3;
1353 	sx_write(sc->sc_sx, SX_ROP_CONTROL, 0x3C); /* ~src a / src a */
1354 	/*
1355 	 * Calculate the number of pixels we need to mask on each end of the
1356 	 * scanline and how many we can do without mask, if any
1357 	 */
1358 	pre = x & 3;
1359 	if (pre != 0) {
1360 		lmask = 0xffffffff >> pre;
1361 		pre = 4 - pre;
1362 		pwrds++;
1363 	}
1364 	post = (x + wi) & 3;
1365 	if (post != 0) {
1366 		rmask = ~(0xffffffff >> post);
1367 		pwrds++;
1368 	}
1369 	words = (wi + pre + 3) >> 2;
1370 	cnt = words - pwrds;
1371 
1372 	for (line = 0; line < he; line++) {
1373 		pptr = addr;
1374 		/* load a whole scanline */
1375 		sxm(SX_LD, pptr, 8, words - 1);
1376 		reg = 8;
1377 		if (pre) {
1378 			cg14_set_mask(sc, lmask);
1379 			sxi(SX_ROPB, 8, 8, 40, 0);
1380 			reg++;
1381 		}
1382 		if (cnt > 0) {
1383 			cg14_set_mask(sc, 0xffffffff);
1384 			/* XXX handle cnt > 16 */
1385 			sxi(SX_ROP, reg, reg, reg + 32, cnt - 1);
1386 			reg += cnt;
1387 		}
1388 		if (post) {
1389 			cg14_set_mask(sc, rmask);
1390 			sxi(SX_ROPB, reg, 7, reg + 32, 0);
1391 			reg++;
1392 		}
1393 		sxm(SX_ST, pptr, 40, words - 1);
1394 		addr += stride;
1395 	}
1396 }
1397 
1398 static inline void
1399 cg14_slurp(int reg, uint32_t addr, int cnt)
1400 {
1401 	int num;
1402 	while (cnt > 0) {
1403 		num = uimin(32, cnt);
1404 		sxm(SX_LD, addr, reg, num - 1);
1405 		cnt -= num;
1406 		reg += num;
1407 		addr += (num << 2);
1408 	}
1409 }
1410 
1411 static inline void
1412 cg14_spit(int reg, uint32_t addr, int cnt)
1413 {
1414 	int num;
1415 	while (cnt > 0) {
1416 		num = uimin(32, cnt);
1417 		sxm(SX_ST, addr, reg, num - 1);
1418 		cnt -= num;
1419 		reg += num;
1420 		addr += (num << 2);
1421 	}
1422 }
1423 
1424 static void
1425 cg14_bitblt(void *cookie, int xs, int ys, int xd, int yd,
1426     int wi, int he, int rop)
1427 {
1428 	struct cgfourteen_softc *sc = cookie;
1429 	uint32_t saddr, daddr, sptr, dptr;
1430 	int line, cnt, stride = sc->sc_fb.fb_type.fb_width;
1431 	int num, words, skip;
1432 
1433 	if (ys < yd) {
1434 		/* need to go bottom-up */
1435 		saddr = sc->sc_fb_paddr + xs + stride * (ys + he - 1);
1436 		daddr = sc->sc_fb_paddr + xd + stride * (yd + he - 1);
1437 		skip = -stride;
1438 	} else {
1439 		saddr = sc->sc_fb_paddr + xs + stride * ys;
1440 		daddr = sc->sc_fb_paddr + xd + stride * yd;
1441 		skip = stride;
1442 	}
1443 
1444 	if ((saddr & 3) == (daddr & 3)) {
1445 		int pre = saddr & 3;	/* pixels to copy byte-wise */
1446 		if (pre != 0) pre = 4 - pre;
1447 		for (line = 0; line < he; line++) {
1448 			sptr = saddr;
1449 			dptr = daddr;
1450 			cnt = wi;
1451 			if (pre > 0) {
1452 				sxm(SX_LDB, sptr, 32, pre - 1);
1453 				sxm(SX_STB, dptr, 32, pre - 1);
1454 				cnt -= pre;
1455 				sptr += pre;
1456 				dptr += pre;
1457 			}
1458 			words = cnt >> 2;
1459 			while(cnt > 3) {
1460 				num = uimin(120, words);
1461 				cg14_slurp(8, sptr, num);
1462 				cg14_spit(8, dptr, num);
1463 				sptr += num << 2;
1464 				dptr += num << 2;
1465 				cnt -= num << 2;
1466 			}
1467 			if (cnt > 0) {
1468 				sxm(SX_LDB, sptr, 32, cnt - 1);
1469 				sxm(SX_STB, dptr, 32, cnt - 1);
1470 			}
1471 			saddr += skip;
1472 			daddr += skip;
1473 		}
1474 	} else {
1475 		/* unaligned, have to use byte mode */
1476 		/* funnel shifter & byte mask trickery? */
1477 		for (line = 0; line < he; line++) {
1478 			sptr = saddr;
1479 			dptr = daddr;
1480 			cnt = wi;
1481 			while(cnt > 31) {
1482 				sxm(SX_LDB, sptr, 32, 31);
1483 				sxm(SX_STB, dptr, 32, 31);
1484 				sptr += 32;
1485 				dptr += 32;
1486 				cnt -= 32;
1487 			}
1488 			if (cnt > 0) {
1489 				sxm(SX_LDB, sptr, 32, cnt - 1);
1490 				sxm(SX_STB, dptr, 32, cnt - 1);
1491 			}
1492 			saddr += skip;
1493 			daddr += skip;
1494 		}
1495 	}
1496 }
1497 
1498 /*
1499  * for copying glyphs around
1500  * - uses all quads for reads
1501  * - uses quads for writes as far as possible
1502  * - limited by number of registers - won't do more than 120 wide
1503  * - doesn't handle overlaps
1504  */
1505 static void
1506 cg14_bitblt_gc(void *cookie, int xs, int ys, int xd, int yd,
1507     int wi, int he, int rop)
1508 {
1509 	struct cgfourteen_softc *sc = cookie;
1510 	uint32_t saddr, daddr;
1511 	int line, cnt = wi, stride = sc->sc_fb.fb_type.fb_width;
1512 	int dreg = 8, swi = wi, dd;
1513 	int in = 0, q = 0, out = 0, r;
1514 
1515 	saddr = sc->sc_fb_paddr + xs + stride * ys;
1516 	daddr = sc->sc_fb_paddr + xd + stride * yd;
1517 
1518 	if (saddr & 3) {
1519 		swi += saddr & 3;
1520 		dreg += saddr & 3;
1521 		saddr &= ~3;
1522 	}
1523 	swi = (swi + 3) >> 2;	/* round up, number of quads to read */
1524 
1525 	if (daddr & 3) {
1526 		in = 4 - (daddr & 3); /* pixels to write in byte mode */
1527 		cnt -= in;
1528 	}
1529 
1530 	q = cnt >> 2;
1531 	out = cnt & 3;
1532 
1533 	for (line = 0; line < he; line++) {
1534 		/* read source line, in all quads */
1535 		sxm(SX_LDUQ0, saddr, 8, swi - 1);
1536 		/* now write it out */
1537 		dd = daddr;
1538 		r = dreg;
1539 		if (in > 0) {
1540 			sxm(SX_STB, dd, r, in - 1);
1541 			dd += in;
1542 			r += in;
1543 		}
1544 		if (q > 0) {
1545 			sxm(SX_STUQ0, dd, r, q - 1);
1546 			r += q << 2;
1547 			dd += q << 2;
1548 		}
1549 		if (out > 0) {
1550 			sxm(SX_STB, dd, r, out - 1);
1551 		}
1552 		saddr += stride;
1553 		daddr += stride;
1554 	}
1555 }
1556 
1557 static void
1558 cg14_putchar(void *cookie, int row, int col, u_int c, long attr)
1559 {
1560 	struct rasops_info *ri = cookie;
1561 	struct wsdisplay_font *font = PICK_FONT(ri, c);
1562 	struct vcons_screen *scr = ri->ri_hw;
1563 	struct cgfourteen_softc *sc = scr->scr_cookie;
1564 	void *data;
1565 	uint32_t fg, bg;
1566 	int i, x, y, wi, he;
1567 	uint32_t addr;
1568 	int stride = sc->sc_fb.fb_type.fb_width;
1569 
1570 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
1571 		return;
1572 
1573 	if (!CHAR_IN_FONT(c, font))
1574 		return;
1575 
1576 	if (row == ri->ri_crow && col == ri->ri_ccol) {
1577 		ri->ri_flg &= ~RI_CURSOR;
1578 	}
1579 
1580 	wi = font->fontwidth;
1581 	he = font->fontheight;
1582 
1583 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
1584 	fg = ri->ri_devcmap[(attr >> 24) & 0xf];
1585 
1586 	x = ri->ri_xorigin + col * wi;
1587 	y = ri->ri_yorigin + row * he;
1588 
1589 	if (c == 0x20) {
1590 		cg14_rectfill(sc, x, y, wi, he, bg);
1591 		if (attr & 1)
1592 			cg14_rectfill(sc, x, y + he - 2, wi, 1, fg);
1593 		return;
1594 	}
1595 
1596 	sx_write(sc->sc_sx, SX_QUEUED(8), bg);
1597 	sx_write(sc->sc_sx, SX_QUEUED(9), fg);
1598 
1599 	data = WSFONT_GLYPH(c, font);
1600 	addr = sc->sc_fb_paddr + x + stride * y;
1601 
1602 	switch (font->stride) {
1603 		case 1: {
1604 			uint8_t *data8 = data;
1605 			uint32_t reg;
1606 			for (i = 0; i < he; i++) {
1607 				reg = *data8;
1608 				cg14_set_mask(sc, reg << 24);
1609 				sxm(SX_STBS, addr, 8, wi - 1);
1610 				data8++;
1611 				addr += stride;
1612 			}
1613 			break;
1614 		}
1615 		case 2: {
1616 			uint16_t *data16 = data;
1617 			uint32_t reg;
1618 			for (i = 0; i < he; i++) {
1619 				reg = *data16;
1620 				cg14_set_mask(sc, reg << 16);
1621 				sxm(SX_STBS, addr, 8, wi - 1);
1622 				data16++;
1623 				addr += stride;
1624 			}
1625 			break;
1626 		}
1627 	}
1628 	if (attr & 1)
1629 		cg14_rectfill(sc, x, y + he - 2, wi, 1, fg);
1630 }
1631 
1632 static void
1633 cg14_nuke_cursor(struct rasops_info *ri)
1634 {
1635 	struct vcons_screen *scr = ri->ri_hw;
1636 	struct cgfourteen_softc *sc = scr->scr_cookie;
1637 	int wi, he, x, y;
1638 
1639 	if (ri->ri_flg & RI_CURSOR) {
1640 		wi = ri->ri_font->fontwidth;
1641 		he = ri->ri_font->fontheight;
1642 		x = ri->ri_ccol * wi + ri->ri_xorigin;
1643 		y = ri->ri_crow * he + ri->ri_yorigin;
1644 		cg14_invert(sc, x, y, wi, he);
1645 		ri->ri_flg &= ~RI_CURSOR;
1646 	}
1647 }
1648 
1649 static void
1650 cg14_cursor(void *cookie, int on, int row, int col)
1651 {
1652 	struct rasops_info *ri = cookie;
1653 	struct vcons_screen *scr = ri->ri_hw;
1654 	struct cgfourteen_softc *sc = scr->scr_cookie;
1655 	int x, y, wi, he;
1656 
1657 	wi = ri->ri_font->fontwidth;
1658 	he = ri->ri_font->fontheight;
1659 
1660 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
1661 		if (on) {
1662 			if (ri->ri_flg & RI_CURSOR) {
1663 				cg14_nuke_cursor(ri);
1664 			}
1665 			x = col * wi + ri->ri_xorigin;
1666 			y = row * he + ri->ri_yorigin;
1667 			cg14_invert(sc, x, y, wi, he);
1668 			ri->ri_flg |= RI_CURSOR;
1669 		}
1670 		ri->ri_crow = row;
1671 		ri->ri_ccol = col;
1672 	} else {
1673 		scr->scr_ri.ri_crow = row;
1674 		scr->scr_ri.ri_ccol = col;
1675 		scr->scr_ri.ri_flg &= ~RI_CURSOR;
1676 	}
1677 
1678 }
1679 
1680 static void
1681 cg14_putchar_aa(void *cookie, int row, int col, u_int c, long attr)
1682 {
1683 	struct rasops_info *ri = cookie;
1684 	struct wsdisplay_font *font = PICK_FONT(ri, c);
1685 	struct vcons_screen *scr = ri->ri_hw;
1686 	struct cgfourteen_softc *sc = scr->scr_cookie;
1687 	int stride = sc->sc_fb.fb_type.fb_width;
1688 	uint32_t bg, fg, addr, bg8, fg8, pixel, in, q, next;
1689 	int i, j, x, y, wi, he, r, g, b, aval, cnt, reg;
1690 	int r1, g1, b1, r0, g0, b0, fgo, bgo, rv;
1691 	uint8_t *data8;
1692 
1693 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
1694 		return;
1695 
1696 	if (!CHAR_IN_FONT(c, font))
1697 		return;
1698 
1699 	if (row == ri->ri_crow && col == ri->ri_ccol) {
1700 		ri->ri_flg &= ~RI_CURSOR;
1701 	}
1702 
1703 	wi = font->fontwidth;
1704 	he = font->fontheight;
1705 
1706 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
1707 	fg = ri->ri_devcmap[(attr >> 24) & 0xf];
1708 	x = ri->ri_xorigin + col * wi;
1709 	y = ri->ri_yorigin + row * he;
1710 	if (c == 0x20) {
1711 		cg14_rectfill(sc, x, y, wi, he, bg);
1712 		if (attr & 1)
1713 			cg14_rectfill(sc, x, y + he - 2, wi, 1, fg);
1714 		return;
1715 	}
1716 
1717 	rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
1718 	if (rv == GC_OK)
1719 		return;
1720 
1721 	addr = sc->sc_fb_paddr + x + stride * y;
1722 	data8 = WSFONT_GLYPH(c, font);
1723 
1724 	/*
1725 	 * we need the RGB colours here, so get offsets into rasops_cmap
1726 	 */
1727 	fgo = ((attr >> 24) & 0xf) * 3;
1728 	bgo = ((attr >> 16) & 0xf) * 3;
1729 
1730 	r0 = rasops_cmap[bgo];
1731 	r1 = rasops_cmap[fgo];
1732 	g0 = rasops_cmap[bgo + 1];
1733 	g1 = rasops_cmap[fgo + 1];
1734 	b0 = rasops_cmap[bgo + 2];
1735 	b1 = rasops_cmap[fgo + 2];
1736 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6))
1737 	bg8 = R3G3B2(r0, g0, b0);
1738 	fg8 = R3G3B2(r1, g1, b1);
1739 
1740 	for (i = 0; i < he; i++) {
1741 		/* calculate one line of pixels */
1742 		for (j = 0; j < wi; j++) {
1743 			aval = *data8;
1744 			if (aval == 0) {
1745 				pixel = bg8;
1746 			} else if (aval == 255) {
1747 				pixel = fg8;
1748 			} else {
1749 				r = aval * r1 + (255 - aval) * r0;
1750 				g = aval * g1 + (255 - aval) * g0;
1751 				b = aval * b1 + (255 - aval) * b0;
1752 				pixel = ((r & 0xe000) >> 8) |
1753 					((g & 0xe000) >> 11) |
1754 					((b & 0xc000) >> 14);
1755 			}
1756 			/*
1757 			 * stick them into SX registers and hope we never have
1758 			 * to deal with fonts more than 120 pixels wide
1759 			 */
1760 			sx_write(sc->sc_sx, SX_QUEUED(j + 8), pixel);
1761 			data8++;
1762 		}
1763 		/* now write them into video memory */
1764 		in = (addr & 3);
1765 		next = addr;
1766 		reg = 8;
1767 		cnt = wi;
1768 		if (in != 0) {
1769 			in = 4 - in;	/* pixels to write until aligned */
1770 			sxm(SX_STB, next, 8, in - 1);
1771 			next += in;
1772 			reg = 8 + in;
1773 			cnt -= in;
1774 		}
1775 		q = cnt >> 2;	/* number of writes we can do in quads */
1776 		if (q > 0) {
1777 			sxm(SX_STUQ0, next, reg, q - 1);
1778 			next += (q << 2);
1779 			cnt -= (q << 2);
1780 			reg += (q << 2);
1781 		}
1782 		if (cnt > 0) {
1783 			sxm(SX_STB, next, reg, cnt - 1);
1784 		}
1785 
1786 		addr += stride;
1787 	}
1788 
1789 	if (rv == GC_ADD) {
1790 		glyphcache_add(&sc->sc_gc, c, x, y);
1791 	} else if (attr & 1)
1792 		cg14_rectfill(sc, x, y + he - 2, wi, 1, fg);
1793 
1794 }
1795 
1796 static void
1797 cg14_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
1798 {
1799 	struct rasops_info *ri = cookie;
1800 	struct vcons_screen *scr = ri->ri_hw;
1801 	struct cgfourteen_softc *sc = scr->scr_cookie;
1802 	int32_t xs, xd, y, width, height;
1803 
1804 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
1805 		if (ri->ri_crow == row &&
1806 		   (ri->ri_ccol >= srccol && ri->ri_ccol < (srccol + ncols)) &&
1807 		   (ri->ri_flg & RI_CURSOR)) {
1808 			cg14_nuke_cursor(ri);
1809 		}
1810 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
1811 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
1812 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
1813 		width = ri->ri_font->fontwidth * ncols;
1814 		height = ri->ri_font->fontheight;
1815 		cg14_bitblt(sc, xs, y, xd, y, width, height, 0x0c);
1816 		if (ri->ri_crow == row &&
1817 		   (ri->ri_ccol >= dstcol && ri->ri_ccol < (dstcol + ncols)))
1818 			ri->ri_flg &= ~RI_CURSOR;
1819 	}
1820 }
1821 
1822 static void
1823 cg14_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
1824 {
1825 	struct rasops_info *ri = cookie;
1826 	struct vcons_screen *scr = ri->ri_hw;
1827 	struct cgfourteen_softc *sc = scr->scr_cookie;
1828 	int32_t x, y, width, height, fg, bg, ul;
1829 
1830 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
1831 		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
1832 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
1833 		width = ri->ri_font->fontwidth * ncols;
1834 		height = ri->ri_font->fontheight;
1835 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
1836 		cg14_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
1837 		if (ri->ri_crow == row &&
1838 		   (ri->ri_ccol >= startcol && ri->ri_ccol < (startcol + ncols)))
1839 			ri->ri_flg &= ~RI_CURSOR;
1840 
1841 	}
1842 }
1843 
1844 static void
1845 cg14_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
1846 {
1847 	struct rasops_info *ri = cookie;
1848 	struct vcons_screen *scr = ri->ri_hw;
1849 	struct cgfourteen_softc *sc = scr->scr_cookie;
1850 	int32_t x, ys, yd, width, height;
1851 
1852 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
1853 		if ((ri->ri_crow >= srcrow && ri->ri_crow < (srcrow + nrows)) &&
1854 		   (ri->ri_flg & RI_CURSOR)) {
1855 			cg14_nuke_cursor(ri);
1856 		}
1857 		x = ri->ri_xorigin;
1858 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
1859 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
1860 		width = ri->ri_emuwidth;
1861 		height = ri->ri_font->fontheight * nrows;
1862 		cg14_bitblt(sc, x, ys, x, yd, width, height, 0x0c);
1863 		if (ri->ri_crow >= dstrow && ri->ri_crow < (dstrow + nrows))
1864 			ri->ri_flg &= ~RI_CURSOR;
1865 	}
1866 }
1867 
1868 static void
1869 cg14_eraserows(void *cookie, int row, int nrows, long fillattr)
1870 {
1871 	struct rasops_info *ri = cookie;
1872 	struct vcons_screen *scr = ri->ri_hw;
1873 	struct cgfourteen_softc *sc = scr->scr_cookie;
1874 	int32_t x, y, width, height, fg, bg, ul;
1875 
1876 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
1877 		x = ri->ri_xorigin;
1878 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
1879 		width = ri->ri_emuwidth;
1880 		height = ri->ri_font->fontheight * nrows;
1881 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
1882 		cg14_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
1883 		if (ri->ri_crow >= row && ri->ri_crow < (row + nrows))
1884 			ri->ri_flg &= ~RI_CURSOR;
1885 	}
1886 }
1887 
1888 #endif /* NSX > 0 */
1889 
1890