xref: /netbsd/sys/arch/hpcsh/dev/hd64461/hd64461video.c (revision 6550d01e)
1 /*	$NetBSD: hd64461video.c,v 1.52 2009/04/05 00:56:20 uwe Exp $	*/
2 
3 /*-
4  * Copyright (c) 2001, 2002, 2004 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by UCHIYAMA Yasushi.
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 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: hd64461video.c,v 1.52 2009/04/05 00:56:20 uwe Exp $");
34 
35 #include "opt_hd64461video.h"
36 // #define HD64461VIDEO_HWACCEL
37 
38 #include <sys/param.h>
39 #include <sys/kernel.h>
40 #include <sys/systm.h>
41 #include <sys/device.h>
42 #include <sys/malloc.h>
43 
44 #include <sys/conf.h> /* cdev_decl */
45 #include <dev/cons.h> /* consdev */
46 
47 /* ioctl */
48 #include <sys/ioctl.h>
49 #include <sys/buf.h>
50 #include <uvm/uvm_extern.h>
51 
52 #include <machine/bus.h>
53 #include <machine/intr.h>
54 
55 #include <hpcsh/dev/hd64461/hd64461var.h>
56 #include <hpcsh/dev/hd64461/hd64461reg.h>
57 #include <hpcsh/dev/hd64461/hd64461videoreg.h>
58 
59 #include <dev/wscons/wsdisplayvar.h>
60 #include <dev/rasops/rasops.h>
61 
62 #include <dev/wscons/wsconsio.h>
63 #include <dev/hpc/hpcfbvar.h>
64 #include <dev/hpc/hpcfbio.h>
65 #include <dev/hpc/video_subr.h>
66 
67 #include <machine/config_hook.h>
68 #include <machine/bootinfo.h>
69 
70 #include <machine/platid.h>
71 #include <machine/platid_mask.h>
72 
73 #ifdef	HD64461VIDEO_DEBUG
74 #define DPRINTF_ENABLE
75 #define DPRINTF_DEBUG	hd64461video_debug
76 #endif
77 #include <machine/debug.h>
78 
79 struct hd64461video_chip;
80 struct hd64461video_font {
81 	struct wsdisplay_font wsfont;
82 	int c, cw, cstep;
83 	int loaded;
84 };
85 
86 struct hd64461video_softc {
87 	device_t sc_dev;
88 
89 	enum hd64461_module_id sc_module_id;
90 	struct hd64461video_chip *sc_vc;
91 
92 	struct hd64461video_font sc_font;
93 };
94 
95 enum hd64461video_display_mode {
96 	LCD256_C,
97 	LCD64K_C,
98 	LCD64_MONO,
99 	LCD16_MONO,
100 	LCD4_MONO,
101 	LCD2_MONO,
102 	CRT256_C,
103 	LCDCRT
104 };
105 
106 STATIC struct hd64461video_chip {
107 	struct video_chip vc;
108 	enum hd64461video_display_mode mode;
109 	struct hpcfb_dspconf hd;
110 	struct hpcfb_fbconf hf;
111 	uint8_t *off_screen_addr;
112 	size_t off_screen_size;
113 
114 	struct callout unblank_ch;
115 	int blanked;
116 
117 	int console;
118 } hd64461video_chip;
119 
120 void	hd64461video_cnprobe(struct consdev *);
121 void	hd64461video_cninit(struct consdev *);
122 
123 STATIC int hd64461video_match(device_t, cfdata_t, void *);
124 STATIC void hd64461video_attach(device_t, device_t, void *);
125 
126 STATIC void hd64461video_setup_hpcfbif(struct hd64461video_chip *);
127 STATIC void hd64461video_update_videochip_status(struct hd64461video_chip *);
128 STATIC size_t hd64461video_frame_buffer_size(struct hd64461video_chip *);
129 STATIC void hd64461video_hwaccel_init(struct hd64461video_chip *);
130 
131 STATIC void hd64461video_set_clut(struct hd64461video_chip *, int, int,
132     uint8_t *, uint8_t *, uint8_t *);
133 STATIC void hd64461video_get_clut(struct hd64461video_chip *, int, int,
134     uint8_t *, uint8_t *, uint8_t *);
135 STATIC int hd64461video_power(void *, int, long, void *);
136 STATIC void hd64461video_off(struct hd64461video_chip *);
137 STATIC void hd64461video_on(struct hd64461video_chip *);
138 STATIC void hd64461video_display_onoff(void *, bool);
139 STATIC void hd64461video_display_on(void *);
140 
141 #if notyet
142 STATIC void hd64461video_set_display_mode(struct hd64461video_chip *);
143 STATIC void hd64461video_set_display_mode_lcdc(struct hd64461video_chip *);
144 STATIC void hd64461video_set_display_mode_crtc(struct hd64461video_chip *);
145 #endif
146 
147 #ifdef HD64461VIDEO_DEBUG
148 STATIC void hd64461video_info(struct hd64461video_softc *);
149 STATIC void hd64461video_dump(void) __attribute__((__unused__));
150 #endif
151 
152 CFATTACH_DECL_NEW(hd64461video, sizeof(struct hd64461video_softc),
153     hd64461video_match, hd64461video_attach, NULL, NULL);
154 
155 STATIC int hd64461video_ioctl(void *, u_long, void *, int, struct lwp *);
156 STATIC paddr_t hd64461video_mmap(void *, off_t, int);
157 
158 #ifdef HD64461VIDEO_HWACCEL
159 STATIC void hd64461video_cursor(void *, int, int, int, int, int);
160 STATIC void hd64461video_bitblit(void *, int, int, int, int, int, int);
161 STATIC void hd64461video_erase(void *, int, int, int, int, int);
162 STATIC void hd64461video_putchar(void *, int, int, struct wsdisplay_font *,
163     int, int, uint, int);
164 STATIC void hd64461video_setclut(void *, struct rasops_info *);
165 STATIC void hd64461video_font(void *, struct wsdisplay_font *);
166 STATIC void hd64461video_iodone(void *);
167 
168 /* font */
169 STATIC void hd64461video_font_load_16bpp(uint16_t *, uint8_t *, int, int, int);
170 STATIC void hd64461video_font_load_8bpp(uint8_t *, uint8_t *, int, int, int);
171 STATIC void hd64461video_font_set_attr(struct hd64461video_softc *,
172     struct wsdisplay_font *);
173 STATIC void hd64461video_font_load(struct hd64461video_softc *);
174 STATIC vaddr_t hd64461video_font_start_addr(struct hd64461video_softc *, int);
175 #endif /* HD64461VIDEO_HWACCEL */
176 
177 STATIC struct hpcfb_accessops hd64461video_ha = {
178 	.ioctl	= hd64461video_ioctl,
179 	.mmap	= hd64461video_mmap,
180 #ifdef HD64461VIDEO_HWACCEL
181 	.cursor	= hd64461video_cursor,
182 	.bitblit= hd64461video_bitblit,
183 	.erase	= hd64461video_erase,
184 	.putchar= hd64461video_putchar,
185 	.setclut= hd64461video_setclut,
186 	.font	= hd64461video_font,
187 	.iodone	= hd64461video_iodone
188 #endif /* HD64461VIDEO_HWACCEL */
189 };
190 
191 
192 STATIC int
193 hd64461video_match(device_t parent, cfdata_t cf, void *aux)
194 {
195 	struct hd64461_attach_args *ha = aux;
196 
197 	return (ha->ha_module_id == HD64461_MODULE_VIDEO);
198 }
199 
200 STATIC void
201 hd64461video_attach(device_t parent, device_t self, void *aux)
202 {
203 	struct hd64461_attach_args *ha = aux;
204 	struct hd64461video_softc *sc;
205 	struct hpcfb_attach_args hfa;
206 	struct video_chip *vc = &hd64461video_chip.vc;
207 	char pbuf[9];
208 	size_t fbsize, on_screen_size;
209 
210 	aprint_naive("\n");
211 	aprint_normal(": ");
212 
213 	sc = device_private(self);
214 	sc->sc_dev = self;
215 
216 	sc->sc_module_id = ha->ha_module_id;
217 	sc->sc_vc = &hd64461video_chip;
218 
219 	/* detect frame buffer size */
220 	fbsize = hd64461video_frame_buffer_size(&hd64461video_chip);
221 	format_bytes(pbuf, sizeof(pbuf), fbsize);
222 	aprint_normal("frame buffer = %s ", pbuf);
223 
224 	/* update chip status */
225 	hd64461video_update_videochip_status(&hd64461video_chip);
226 
227 	hd64461video_display_onoff(&hd64461video_chip, true);
228 //	hd64461video_set_display_mode(&hd64461video_chip);
229 
230 	if (hd64461video_chip.console)
231 		aprint_normal(", console");
232 
233 	aprint_normal("\n");
234 #ifdef HD64461VIDEO_DEBUG
235 	hd64461video_info(sc);
236 	hd64461video_dump();
237 #endif
238 	/* Add a hard power hook to power saving */
239 	config_hook(CONFIG_HOOK_PMEVENT, CONFIG_HOOK_PMEVENT_HARDPOWER,
240 	    CONFIG_HOOK_SHARE, hd64461video_power, sc);
241 
242 	/* setup hpcfb interface */
243 	hd64461video_setup_hpcfbif(&hd64461video_chip);
244 
245 	/* setup off-screen buffer */
246 	on_screen_size = (vc->vc_fbwidth * vc->vc_fbheight * vc->vc_fbdepth) /
247 	    NBBY;
248 	hd64461video_chip.off_screen_addr = (uint8_t *)vc->vc_fbvaddr +
249 	    on_screen_size;
250 	hd64461video_chip.off_screen_size = fbsize - on_screen_size;
251 	/* clean up off-screen area */
252 	{
253 		uint8_t *p = hd64461video_chip.off_screen_addr;
254 		uint8_t *end = p + hd64461video_chip.off_screen_size;
255 		while (p < end)
256 			*p++ = 0xff;
257 	}
258 
259 	/* initialize hardware acceralation */
260 	hd64461video_hwaccel_init(&hd64461video_chip);
261 
262 	/* register interface to hpcfb */
263 	hfa.ha_console	   = hd64461video_chip.console;
264 	hfa.ha_accessops   = &hd64461video_ha;
265 	hfa.ha_accessctx   = sc;
266 	hfa.ha_curfbconf   = 0;
267 	hfa.ha_nfbconf	   = 1;
268 	hfa.ha_fbconflist  = &hd64461video_chip.hf;
269 	hfa.ha_curdspconf  = 0;
270 	hfa.ha_ndspconf	   = 1;
271 	hfa.ha_dspconflist = &hd64461video_chip.hd;
272 
273 	config_found(self, &hfa, hpcfbprint);
274 
275 	/*
276 	 * XXX: TODO: for now this device manages power using
277 	 * config_hook(9) registered with hpcapm(4).
278 	 *
279 	 * We cannot yet switch it to pmf(9) hooks because only apm(4)
280 	 * uses them, apmdev(4) doesn't, but hpcapm(4) is the parent
281 	 * device for both, so its hooks are always run.
282 	 *
283 	 * We probably want to register shutdown hook with pmf(9) to
284 	 * make sure display is powered on before we reboot in case we
285 	 * end up in ddb early on.
286 	 */
287 	if (!pmf_device_register(self, NULL, NULL))
288 		aprint_error_dev(self, "unable to establish power handler\n");
289 }
290 
291 /* console support */
292 void
293 hd64461video_cninit(struct consdev *cndev)
294 {
295 	hd64461video_chip.console = 1;
296 	hd64461video_chip.vc.vc_reverse = video_reverse_color();
297 
298 	hd64461video_update_videochip_status(&hd64461video_chip);
299 	hd64461video_setup_hpcfbif(&hd64461video_chip);
300 	hpcfb_cnattach(&hd64461video_chip.hf);
301 
302 	cn_tab->cn_pri = CN_INTERNAL;
303 }
304 
305 void
306 hd64461video_cnprobe(struct consdev *cndev)
307 {
308 #if NWSDISPLAY > 0
309 	extern const struct cdevsw wsdisplay_cdevsw;
310 	int maj, unit;
311 #endif
312 	cndev->cn_dev = NODEV;
313 	cndev->cn_pri = CN_NORMAL;
314 
315 #if NWSDISPLAY > 0
316 	unit = 0;
317 	maj = cdevsw_lookup_major(&wsdisplay_cdevsw);
318 
319 	if (maj != -1) {
320 		cndev->cn_pri = CN_INTERNAL;
321 		cndev->cn_dev = makedev(maj, unit);
322 	}
323 #endif /* NWSDISPLAY > 0 */
324 }
325 
326 /* hpcfb support */
327 STATIC void
328 hd64461video_setup_hpcfbif(struct hd64461video_chip *hvc)
329 {
330 	struct video_chip *vc = &hvc->vc;
331 	struct hpcfb_fbconf *fb = &hvc->hf;
332 	vaddr_t fbvaddr = vc->vc_fbvaddr;
333 	int height = vc->vc_fbheight;
334 	int width = vc->vc_fbwidth;
335 	int depth = vc->vc_fbdepth;
336 
337 	memset(fb, 0, sizeof(struct hpcfb_fbconf));
338 
339 	fb->hf_conf_index	= 0;	/* configuration index		*/
340 	fb->hf_nconfs		= 1;   	/* how many configurations	*/
341 	strncpy(fb->hf_name, "HD64461 video module", HPCFB_MAXNAMELEN);
342 
343 	/* frame buffer name */
344 	strncpy(fb->hf_conf_name, "LCD", HPCFB_MAXNAMELEN);
345 
346 	/* configuration name */
347 	fb->hf_height		= height;
348 	fb->hf_width		= width;
349 	fb->hf_baseaddr		= (u_long)fbvaddr;
350 	fb->hf_offset		= (u_long)fbvaddr -
351 	    sh3_ptob(sh3_btop(fbvaddr));
352 
353 	/* frame buffer start offset */
354 	fb->hf_bytes_per_line	= (width * depth) / NBBY;
355 	fb->hf_nplanes		= 1;
356 	fb->hf_bytes_per_plane	= height * fb->hf_bytes_per_line;
357 
358 	fb->hf_access_flags |= HPCFB_ACCESS_BYTE;
359 	fb->hf_access_flags |= HPCFB_ACCESS_WORD;
360 	fb->hf_access_flags |= HPCFB_ACCESS_DWORD;
361 	if (vc->vc_reverse)
362 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
363 
364 	switch (depth) {
365 	default:
366 		panic("%s: not supported color depth", __func__);
367 		/* NOTREACHED */
368 	case 16:
369 		fb->hf_class = HPCFB_CLASS_RGBCOLOR;
370 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
371 		fb->hf_pack_width = 16;
372 		fb->hf_pixels_per_pack = 1;
373 		fb->hf_pixel_width = 16;
374 		/*
375 		 * XXX: uwe: if I RTFS correctly, this really means
376 		 * that uint16_t pixel is fetched as little endian.
377 		 */
378 		fb->hf_order_flags = HPCFB_REVORDER_BYTE;
379 
380 		fb->hf_class_data_length = sizeof(struct hf_rgb_tag);
381 		/* reserved for future use */
382 		fb->hf_u.hf_rgb.hf_flags = 0;
383 
384 		fb->hf_u.hf_rgb.hf_red_width = 5;
385 		fb->hf_u.hf_rgb.hf_red_shift = 11;
386 		fb->hf_u.hf_rgb.hf_green_width = 6;
387 		fb->hf_u.hf_rgb.hf_green_shift = 5;
388 		fb->hf_u.hf_rgb.hf_blue_width = 5;
389 		fb->hf_u.hf_rgb.hf_blue_shift = 0;
390 		fb->hf_u.hf_rgb.hf_alpha_width = 0;
391 		fb->hf_u.hf_rgb.hf_alpha_shift = 0;
392 		break;
393 
394 	case 8:
395 		fb->hf_class = HPCFB_CLASS_INDEXCOLOR;
396 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
397 		fb->hf_pack_width = 8;
398 		fb->hf_pixels_per_pack = 1;
399 		fb->hf_pixel_width = 8;
400 		fb->hf_class_data_length = sizeof(struct hf_indexed_tag);
401 		/* reserved for future use */
402 		fb->hf_u.hf_indexed.hf_flags = 0;
403 		break;
404 	}
405 }
406 
407 STATIC void
408 hd64461video_hwaccel_init(struct hd64461video_chip *hvc)
409 {
410 	uint16_t r;
411 
412 	r = HD64461_LCDGRCFGR_ACCRESET;
413 	switch (hvc->vc.vc_fbdepth) {
414 	default:
415 		panic("no bitblit acceralation.");
416 	case 16:
417 		break;
418 	case 8:
419 		r |= HD64461_LCDGRCFGR_COLORDEPTH_8BPP;
420 		break;
421 	}
422 	hd64461_reg_write_2(HD64461_LCDGRCFGR_REG16, r);
423 
424 	while ((hd64461_reg_read_2(HD64461_LCDGRCFGR_REG16) &
425 	    HD64461_LCDGRCFGR_ACCSTATUS) != 0)
426 		continue;
427 
428 	r &= ~HD64461_LCDGRCFGR_ACCRESET;
429 	hd64461_reg_write_2(HD64461_LCDGRCFGR_REG16, r);
430 
431 	while ((hd64461_reg_read_2(HD64461_LCDGRCFGR_REG16) &
432 	    HD64461_LCDGRCFGR_ACCSTATUS) != 0)
433 		continue;
434 
435 	hd64461_reg_write_2(HD64461_LCDGRDOR_REG16,
436 	    (hvc->vc.vc_fbwidth - 1) & HD64461_LCDGRDOR_MASK);
437 }
438 
439 /* hpcfb ops */
440 STATIC int
441 hd64461video_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
442 {
443 	struct hd64461video_softc *sc = (struct hd64461video_softc *)v;
444 	struct hpcfb_fbconf *hf = &sc->sc_vc->hf;
445 	struct hpcfb_fbconf *fbconf;
446 	struct hpcfb_dspconf *dspconf;
447 	struct wsdisplay_cmap *cmap;
448 	struct wsdisplay_param *dispparam;
449 	long id, idmax;
450 	int turnoff;
451 	uint8_t *r, *g, *b;
452 	int error;
453 	size_t idx, cnt;
454 
455 	switch (cmd) {
456 	case WSDISPLAYIO_GVIDEO:
457 		*(u_int *)data = sc->sc_vc->blanked ?
458 		    WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
459 		return (0);
460 
461 	case WSDISPLAYIO_SVIDEO:
462 		turnoff = (*(u_int *)data == WSDISPLAYIO_VIDEO_OFF);
463 		if (sc->sc_vc->blanked != turnoff) {
464 			sc->sc_vc->blanked = turnoff;
465 			if (turnoff)
466 				hd64461video_off(sc->sc_vc);
467 			else
468 				hd64461video_on(sc->sc_vc);
469 		}
470 
471 		return (0);
472 
473 	case WSDISPLAYIO_GETPARAM:
474 		dispparam = (struct wsdisplay_param *)data;
475 		dispparam->min = 0;
476 		switch (dispparam->param) {
477 		case WSDISPLAYIO_PARAM_BACKLIGHT:
478 			id = CONFIG_HOOK_POWER_LCDLIGHT;
479 			idmax = -1;
480 			dispparam->max = ~0;
481 			break;
482 		case WSDISPLAYIO_PARAM_BRIGHTNESS:
483 			id = CONFIG_HOOK_BRIGHTNESS;
484 			idmax = CONFIG_HOOK_BRIGHTNESS_MAX;
485 			break;
486 		case WSDISPLAYIO_PARAM_CONTRAST:
487 			id = CONFIG_HOOK_CONTRAST;
488 			idmax = CONFIG_HOOK_CONTRAST_MAX;
489 			break;
490 		default:
491 			return (EINVAL);
492 		}
493 
494 		if (idmax >= 0) {
495 			error = config_hook_call(CONFIG_HOOK_GET, idmax,
496 						 &dispparam->max);
497 			if (error)
498 				return (error);
499 		}
500 		return config_hook_call(CONFIG_HOOK_GET, id,
501 					&dispparam->curval);
502 
503 	case WSDISPLAYIO_SETPARAM:
504 		dispparam = (struct wsdisplay_param *)data;
505 		switch (dispparam->param) {
506 		case WSDISPLAYIO_PARAM_BACKLIGHT:
507 			id = CONFIG_HOOK_POWER_LCDLIGHT;
508 			break;
509 		case WSDISPLAYIO_PARAM_BRIGHTNESS:
510 			id = CONFIG_HOOK_BRIGHTNESS;
511 			break;
512 		case WSDISPLAYIO_PARAM_CONTRAST:
513 			id = CONFIG_HOOK_CONTRAST;
514 			break;
515 		default:
516 			return (EINVAL);
517 		}
518 		return config_hook_call(CONFIG_HOOK_SET, id,
519 					&dispparam->curval);
520 
521 	case WSDISPLAYIO_GETCMAP:
522 		cmap = (struct wsdisplay_cmap *)data;
523 		cnt = cmap->count;
524 		idx = cmap->index;
525 
526 		if (hf->hf_class != HPCFB_CLASS_INDEXCOLOR ||
527 		    hf->hf_pack_width != 8 ||
528 		    !LEGAL_CLUT_INDEX(idx) ||
529 		    !LEGAL_CLUT_INDEX(idx + cnt -1)) {
530 			return (EINVAL);
531 		}
532 
533 		error = cmap_work_alloc(&r, &g, &b, 0, cnt);
534 		if (error)
535 			goto out;
536 		hd64461video_get_clut(sc->sc_vc, idx, cnt, r, g, b);
537 		error = copyout(r, cmap->red, cnt);
538 		if (error)
539 			goto out;
540 		error = copyout(g, cmap->green,cnt);
541 		if (error)
542 			goto out;
543 		error = copyout(b, cmap->blue, cnt);
544 
545 out:
546 		cmap_work_free(r, g, b, 0);
547 		return error;
548 
549 	case WSDISPLAYIO_PUTCMAP:
550 		cmap = (struct wsdisplay_cmap *)data;
551 		cnt = cmap->count;
552 		idx = cmap->index;
553 
554 		if (hf->hf_class != HPCFB_CLASS_INDEXCOLOR ||
555 		    hf->hf_pack_width != 8 ||
556 		    !LEGAL_CLUT_INDEX(idx) ||
557 		    !LEGAL_CLUT_INDEX(idx + cnt -1)) {
558 			return (EINVAL);
559 		}
560 
561 		error = cmap_work_alloc(&r, &g, &b, 0, cnt);
562 		if (error)
563 			goto out;
564 
565 		error = copyin(cmap->red, r, cnt);
566 		if (error)
567 			goto out;
568 		error = copyin(cmap->green,g, cnt);
569 		if (error)
570 			goto out;
571 		error = copyin(cmap->blue, b, cnt);
572 		if (error)
573 			goto out;
574 		hd64461video_set_clut(sc->sc_vc, idx, cnt, r, g, b);
575 		goto out;
576 
577 	case HPCFBIO_GCONF:
578 		fbconf = (struct hpcfb_fbconf *)data;
579 		if (fbconf->hf_conf_index != 0 &&
580 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
581 			return (EINVAL);
582 		}
583 		*fbconf = *hf;	/* structure assignment */
584 		return (0);
585 
586 	case HPCFBIO_SCONF:
587 		fbconf = (struct hpcfb_fbconf *)data;
588 		if (fbconf->hf_conf_index != 0 &&
589 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
590 			return (EINVAL);
591 		}
592 		/*
593 		 * nothing to do because we have only one configuration
594 		 */
595 		return (0);
596 
597 	case HPCFBIO_GDSPCONF:
598 		dspconf = (struct hpcfb_dspconf *)data;
599 		if ((dspconf->hd_unit_index != 0 &&
600 		    dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
601 		    (dspconf->hd_conf_index != 0 &&
602 			dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
603 			return (EINVAL);
604 		}
605 		*dspconf = sc->sc_vc->hd;	/* structure assignment */
606 		return (0);
607 
608 	case HPCFBIO_SDSPCONF:
609 		dspconf = (struct hpcfb_dspconf *)data;
610 		if ((dspconf->hd_unit_index != 0 &&
611 		    dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
612 		    (dspconf->hd_conf_index != 0 &&
613 			dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
614 			return (EINVAL);
615 		}
616 		/*
617 		 * nothing to do
618 		 * because we have only one unit and one configuration
619 		 */
620 		return (0);
621 
622 	case HPCFBIO_GOP:
623 	case HPCFBIO_SOP:
624 		/* XXX not implemented yet */
625 		return (EINVAL);
626 	}
627 
628 	return (EPASSTHROUGH);
629 }
630 
631 STATIC paddr_t
632 hd64461video_mmap(void *ctx, off_t offset, int prot)
633 {
634 	struct hd64461video_softc *sc = (struct hd64461video_softc *)ctx;
635 	struct hpcfb_fbconf *hf = &sc->sc_vc->hf;
636 
637 	if (offset < 0 || (hf->hf_bytes_per_plane + hf->hf_offset) < offset)
638 		return (-1);
639 
640 	return (sh3_btop(HD64461_FBBASE + offset));
641 }
642 
643 
644 #ifdef HD64461VIDEO_HWACCEL
645 
646 STATIC void
647 hd64461video_cursor(void *ctx, int on, int xd, int yd, int w, int h)
648 {
649 	struct hd64461video_softc *sc = (struct hd64461video_softc *)ctx;
650 	int xw, yh, width, bpp, adr;
651 	uint16_t r;
652 
653 	width = sc->sc_vc->vc.vc_fbwidth;
654 	bpp = sc->sc_vc->vc.vc_fbdepth;
655 	xw = w - 1;
656 	yh = h - 1;
657 
658 	/* Wait until previous command done. */
659 	hd64461video_iodone(ctx);
660 
661 	/* Destination addr */
662 	adr = width * yd + xd;
663 	if (bpp == 16)
664 		adr *= 2;
665 	hd64461_reg_write_2(HD64461_LCDBBTDSARH_REG16,
666 	    HD64461_LCDBBTDSARH(adr));
667 	hd64461_reg_write_2(HD64461_LCDBBTDSARL_REG16,
668 	    HD64461_LCDBBTDSARL(adr));
669 
670 	// Width
671 	hd64461_reg_write_2(HD64461_LCDBBTDWR_REG16,
672 	    xw & HD64461_LCDBBTDWR_MASK);
673 
674 	// Height
675 	hd64461_reg_write_2(HD64461_LCDBBTDHR_REG16,
676 	    yh & HD64461_LCDBBTDHR_MASK);
677 
678 	// Operation (Destination Invert)
679 	hd64461_reg_write_2(HD64461_LCDBBTROPR_REG16,
680 	    HD64461_LCDC_BITBLT_DSTINVERT);
681 
682 	// BitBLT mode (Destination Invert)
683 	hd64461_reg_write_2(HD64461_LCDBBTMDR_REG16, 0);
684 
685 	// Kick.
686 	r = hd64461_reg_read_2(HD64461_LCDGRCFGR_REG16);
687 	r &= ~HD64461_LCDGRCFGR_ACCSTART_MASK;
688 	r |= HD64461_LCDGRCFGR_ACCSTART_BITBLT;
689 	hd64461_reg_write_2(HD64461_LCDGRCFGR_REG16, r);
690 }
691 
692 STATIC void
693 hd64461video_bitblit(void *ctx, int xs, int ys, int xd, int yd, int h, int w)
694 {
695 	struct hd64461video_softc *sc = (struct hd64461video_softc *)ctx;
696 	int xw, yh, width, bpp, condition_a, adr;
697 	uint16_t r;
698 
699 	xw = w - 1;
700 	yh = h - 1;
701 	width = sc->sc_vc->vc.vc_fbwidth;
702 	bpp = sc->sc_vc->vc.vc_fbdepth;
703 	condition_a = ((ys == yd) && (xs <= xd)) || (ys < yd);
704 
705 	hd64461video_iodone(ctx);
706 
707 	// Source addr
708 	if (condition_a)
709 		adr = (width * (ys + yh)) + (xs + xw);
710 	else
711 		adr = width * ys + xs;
712 	if (bpp == 16)
713 		adr *= 2;
714 
715 	hd64461_reg_write_2(HD64461_LCDBBTSSARH_REG16,
716 	    HD64461_LCDBBTSSARH(adr));
717 	hd64461_reg_write_2(HD64461_LCDBBTSSARL_REG16,
718 	    HD64461_LCDBBTSSARL(adr));
719 
720 	// Destination addr
721 	if (condition_a)
722 		adr = (width * (yd + yh)) + (xd + xw);
723 	else
724 		adr = width * yd + xd;
725 	if (bpp == 16)
726 		adr *= 2;
727 
728 	hd64461_reg_write_2(HD64461_LCDBBTDSARH_REG16,
729 	    HD64461_LCDBBTDSARH(adr));
730 	hd64461_reg_write_2(HD64461_LCDBBTDSARL_REG16,
731 	    HD64461_LCDBBTDSARL(adr));
732 
733 	// Width
734 	hd64461_reg_write_2(HD64461_LCDBBTDWR_REG16,
735 	    xw & HD64461_LCDBBTDWR_MASK);
736 
737 	// Height
738 	hd64461_reg_write_2(HD64461_LCDBBTDHR_REG16,
739 	    yh & HD64461_LCDBBTDHR_MASK);
740 
741 	// Operation (source copy)
742 	hd64461_reg_write_2(HD64461_LCDBBTROPR_REG16,
743 	    HD64461_LCDC_BITBLT_SRCCOPY);
744 
745 	// BitBLT mode (on screen to on screen)
746 	r = HD64461_LCDBBTMDR_SET(0,
747 	    HD64461_LCDBBTMDR_ON_SCREEN_TO_ON_SCREEN);
748 	if (condition_a)	/* reverse direction */
749 	    r |= HD64461_LCDBBTMDR_SCANDRCT_RL_BT;
750 	hd64461_reg_write_2(HD64461_LCDBBTMDR_REG16, r);
751 
752 	// Kick.
753 	r = hd64461_reg_read_2(HD64461_LCDGRCFGR_REG16);
754 	r &= ~HD64461_LCDGRCFGR_ACCSTART_MASK;
755 	r |= HD64461_LCDGRCFGR_ACCSTART_BITBLT;
756 	hd64461_reg_write_2(HD64461_LCDGRCFGR_REG16, r);
757 }
758 
759 STATIC void
760 hd64461video_erase(void *ctx, int xd, int yd, int h, int w, int attr)
761 {
762 	struct hd64461video_softc *sc = (struct hd64461video_softc *)ctx;
763 	int xw, yh, width, bpp, adr;
764 	uint16_t r;
765 
766 	width = sc->sc_vc->vc.vc_fbwidth;
767 	bpp = sc->sc_vc->vc.vc_fbdepth;
768 	xw = w - 1;
769 	yh = h - 1;
770 
771 	/* Wait until previous command done. */
772 	hd64461video_iodone(ctx);
773 
774 	/* Destination addr */
775 	adr = width * yd + xd;
776 	if (bpp == 16)
777 		adr *= 2;
778 	hd64461_reg_write_2(HD64461_LCDBBTDSARH_REG16,
779 	    HD64461_LCDBBTDSARH(adr));
780 	hd64461_reg_write_2(HD64461_LCDBBTDSARL_REG16,
781 	    HD64461_LCDBBTDSARL(adr));
782 
783 	// Width
784 	hd64461_reg_write_2(HD64461_LCDBBTDWR_REG16,
785 	    xw & HD64461_LCDBBTDWR_MASK);
786 
787 	// Height
788 	hd64461_reg_write_2(HD64461_LCDBBTDHR_REG16,
789 	    yh & HD64461_LCDBBTDHR_MASK);
790 
791 	// Color
792 	hd64461_reg_write_2(HD64461_LCDGRSCR_REG16, 0); //XXX black only
793 
794 	// Operation (Solid Color Fill)
795 	hd64461_reg_write_2(HD64461_LCDBBTROPR_REG16,
796 	    HD64461_LCDC_BITBLT_PATCOPY);
797 
798 	// BitBLT mode (Solid Color)
799 	hd64461_reg_write_2(HD64461_LCDBBTMDR_REG16,
800 	    HD64461_LCDBBTMDR_PATSELECT_SOLIDCOLOR);
801 
802 	// Kick.
803 	r = hd64461_reg_read_2(HD64461_LCDGRCFGR_REG16);
804 	r &= ~HD64461_LCDGRCFGR_ACCSTART_MASK;
805 	r |= HD64461_LCDGRCFGR_ACCSTART_BITBLT;
806 	hd64461_reg_write_2(HD64461_LCDGRCFGR_REG16, r);
807 }
808 
809 STATIC void
810 hd64461video_putchar(void *ctx, int row, int col, struct wsdisplay_font *font,
811     int fclr, int uclr, u_int uc, int attr)
812 {
813 	struct hd64461video_softc *sc = (struct hd64461video_softc *)ctx;
814 	int w, h, cw;
815 
816 	w = font->fontwidth;
817 	h = font->fontheight;
818 	cw = sc->sc_font.cw;
819 	hd64461video_bitblit(ctx, (uc % cw) * w,
820 	    sc->sc_vc->vc.vc_fbheight + (uc / cw) * h, row, col, h, w);
821 }
822 
823 STATIC void
824 hd64461video_setclut(void *ctx, struct rasops_info *info)
825 {
826 	struct hd64461video_softc *sc = (struct hd64461video_softc *)ctx;
827 
828 	if (sc->sc_vc->vc.vc_fbdepth != 8)
829 		return;
830 }
831 
832 STATIC void
833 hd64461video_font(void *ctx, struct wsdisplay_font *font)
834 {
835 	struct hd64461video_softc *sc = (struct hd64461video_softc *)ctx;
836 
837 	hd64461video_font_set_attr(sc, font);
838 	hd64461video_font_load(sc);
839 }
840 
841 STATIC void
842 hd64461video_iodone(void *ctx)
843 {
844 
845 	while ((hd64461_reg_read_2(HD64461_LCDGRCFGR_REG16) &
846 	    HD64461_LCDGRCFGR_ACCSTATUS) != 0)
847 		continue;
848 }
849 
850 /* internal */
851 STATIC void
852 hd64461video_font_load_16bpp(uint16_t *d, uint8_t *s, int w, int h, int step)
853 {
854 	int i, j, n;
855 	n = step / sizeof(uint16_t);
856 
857 	for (i = 0; i < h; i++, d += n) {
858 		for (j = 0; j < w; j++) {
859 			d[j] = *s & (1 << (w - j - 1)) ? 0xffff : 0x0000;
860 		}
861 		s++;
862 	}
863 }
864 
865 STATIC void
866 hd64461video_font_load_8bpp(uint8_t *d, uint8_t *s, int w, int h, int step)
867 {
868 	int i, j, n;
869 	n = step / sizeof(uint8_t);
870 
871 	for (i = 0; i < h; i++, d += n) {
872 		for (j = 0; j < w; j++) {
873 			d[j] = *s & (1 << (w - j - 1)) ? 0xff : 0x00;
874 		}
875 		s++;
876 	}
877 }
878 
879 STATIC void
880 hd64461video_font_set_attr(struct hd64461video_softc *sc,
881     struct wsdisplay_font *f)
882 {
883 	struct hd64461video_chip *hvc = sc->sc_vc;
884 	struct wsdisplay_font *font = &sc->sc_font.wsfont;
885 	int w, h, bpp;
886 
887 	w	= f->fontwidth;
888 	h	= f->fontheight;
889 	bpp	= hvc->vc.vc_fbdepth;
890 
891 	*font = *f;
892 	sc->sc_font.c = (w * bpp) / NBBY;
893 	sc->sc_font.cw = hvc->hf.hf_width / w;
894 	sc->sc_font.cstep = ((w * h * bpp) / NBBY) * sc->sc_font.cw;
895 
896 	DPRINTF("c = %d cw = %d cstep = %d\n", sc->sc_font.c,
897 	    sc->sc_font.cw, sc->sc_font.cstep);
898 
899 }
900 
901 /* return frame buffer virtual address of charcter #n */
902 STATIC vaddr_t
903 hd64461video_font_start_addr(struct hd64461video_softc *sc, int n)
904 {
905 	struct hd64461video_chip *hvc = sc->sc_vc;
906 	struct hd64461video_font *font = &sc->sc_font;
907 	vaddr_t base;
908 
909 	base = (vaddr_t)hvc->off_screen_addr;
910 	base += (n / font->cw) * font->cstep + font->c * (n % font->cw);
911 
912 	return base;
913 }
914 
915 STATIC void
916 hd64461video_font_load(struct hd64461video_softc *sc)
917 {
918 	struct hd64461video_chip *hvc = sc->sc_vc;
919 	struct wsdisplay_font *font = &sc->sc_font.wsfont;
920 	uint8_t *q;
921 	int w, h, step, i, n;
922 
923 	if (sc->sc_font.loaded) {
924 		printf("reload font\n");
925 	}
926 
927 	w	= font->fontwidth;
928 	h	= font->fontheight;
929 	step	= sc->sc_font.cw * sc->sc_font.c;
930 	n	= (w * h) / NBBY;
931 	q	= font->data;
932 
933 	DPRINTF("%s (%dx%d) %d+%d\n", font->name, w, h, font->firstchar,
934 	    font->numchars);
935 	DPRINTF("bitorder %d byteorder %d stride %d\n", font->bitorder,
936 	    font->byteorder, font->stride);
937 
938 	switch (hvc->vc.vc_fbdepth) {
939 	case 8:
940 		for (i = font->firstchar; i < font->numchars; i++) {
941 			hd64461video_font_load_8bpp
942 			    ((uint8_t *)hd64461video_font_start_addr(sc, i),
943 				q, w, h, step);
944 			q += n;
945 		}
946 		break;
947 	case 16:
948 		for (i = font->firstchar; i < font->numchars; i++) {
949 			hd64461video_font_load_16bpp
950 			    ((uint16_t *)hd64461video_font_start_addr(sc, i),
951 				q, w, h, step);
952 			q += n;
953 		}
954 		break;
955 	}
956 
957 	sc->sc_font.loaded = true;
958 }
959 #endif /* HD64461VIDEO_HWACCEL */
960 
961 STATIC void
962 hd64461video_update_videochip_status(struct hd64461video_chip *hvc)
963 {
964 	struct video_chip *vc = &hvc->vc;
965 	uint16_t r;
966 	int i;
967 	int depth, width, height;
968 
969 	depth = 0;		/* XXX: -Wuninitialized */
970 
971 	/* display mode */
972 	r = hd64461_reg_read_2(HD64461_LCDLDR3_REG16);
973 	i = HD64461_LCDLDR3_CG(r);
974 	switch (i) {
975 	case HD64461_LCDLDR3_CG_COLOR16:
976 		depth = 16;
977 		hvc->mode = LCD64K_C;
978 		break;
979 	case HD64461_LCDLDR3_CG_COLOR8:
980 		depth = 8;
981 		hvc->mode = LCD256_C;
982 		break;
983 	case HD64461_LCDLDR3_CG_GRAY6:
984 		depth = 6;
985 		hvc->mode = LCD64_MONO;
986 		break;
987 	case HD64461_LCDLDR3_CG_GRAY4:
988 		depth = 4;
989 		hvc->mode = LCD16_MONO;
990 		break;
991 	case HD64461_LCDLDR3_CG_GRAY2:
992 		depth = 2;
993 		hvc->mode = LCD4_MONO;
994 		break;
995 	case HD64461_LCDLDR3_CG_GRAY1:
996 		depth = 1;
997 		hvc->mode = LCD2_MONO;
998 		break;
999 	}
1000 
1001 	r = hd64461_reg_read_2(HD64461_LCDCCR_REG16);
1002 	i = HD64461_LCDCCR_DSPSEL(i);
1003 	switch (i) {
1004 	case HD64461_LCDCCR_DSPSEL_LCD_CRT:
1005 		depth = 8;
1006 		hvc->mode = LCDCRT;
1007 		break;
1008 	case HD64461_LCDCCR_DSPSEL_CRT:
1009 		depth = 8;
1010 		hvc->mode = CRT256_C;
1011 		break;
1012 	case HD64461_LCDCCR_DSPSEL_LCD:
1013 		/* nothing to do */
1014 		break;
1015 	}
1016 
1017 	callout_init(&hvc->unblank_ch, 0);
1018 	hvc->blanked = 0;
1019 
1020 	width = bootinfo->fb_width;
1021 	height = bootinfo->fb_height;
1022 
1023 	vc->vc_fbvaddr	= HD64461_FBBASE;
1024 	vc->vc_fbpaddr	= HD64461_FBBASE;
1025 	vc->vc_fbdepth	= depth;
1026 	vc->vc_fbsize	= (width * height * depth) / NBBY;
1027 	vc->vc_fbwidth	= width;
1028 	vc->vc_fbheight	= height;
1029 }
1030 
1031 #if notyet
1032 STATIC void
1033 hd64461video_set_display_mode(struct hd64461video_chip *hvc)
1034 {
1035 
1036 	if (hvc->mode == LCDCRT || hvc->mode == CRT256_C)
1037 		hd64461video_set_display_mode_crtc(hvc);
1038 
1039 	hd64461video_set_display_mode_lcdc(hvc);
1040 }
1041 
1042 STATIC void
1043 hd64461video_set_display_mode_lcdc(struct hd64461video_chip *hvc)
1044 {
1045 	struct {
1046 		uint16_t clor;	/* display size 640 x 240 */
1047 		uint16_t ldr3;
1048 		const char *name;
1049 	} *conf, disp_conf[] = {
1050 		[LCD256_C]	= { 640, HD64461_LCDLDR3_CG_COLOR8,
1051 				    "8bit color" },
1052 		[LCD64K_C]	= { 640 * 2, HD64461_LCDLDR3_CG_COLOR16,
1053 				    "16bit color" },
1054 		[LCD64_MONO]	= { 640, HD64461_LCDLDR3_CG_GRAY6 ,
1055 				    "6bit grayscale" },
1056 		[LCD16_MONO]	= { 640 / 2, HD64461_LCDLDR3_CG_GRAY4,
1057 				    "4bit grayscale" },
1058 		[LCD4_MONO]	= { 640 / 4, HD64461_LCDLDR3_CG_GRAY2,
1059 				    "2bit grayscale" },
1060 		[LCD2_MONO]	= { 640 / 8, HD64461_LCDLDR3_CG_GRAY1,
1061 				    "monochrome" },
1062 	};
1063 	uint16_t r;
1064 	int omode;
1065 
1066 	conf = &disp_conf[hvc->mode];
1067 
1068 	hd64461_reg_write_2(HD64461_LCDCLOR_REG16, conf->clor);
1069 	r = hd64461_reg_read_2(HD64461_LCDLDR3_REG16);
1070 	omode = HD64461_LCDLDR3_CG(r);
1071 	r = HD64461_LCDLDR3_CG_CLR(r);
1072 	r = HD64461_LCDLDR3_CG_SET(r, conf->ldr3);
1073 	hd64461_reg_write_2(HD64461_LCDLDR3_REG16, r);
1074 
1075 	printf("%s ", conf->name);
1076 }
1077 
1078 STATIC void
1079 hd64461video_set_display_mode_crtc(struct hd64461video_chip *hvc)
1080 {
1081 	/* not yet */
1082 }
1083 
1084 #endif /* notyet */
1085 
1086 STATIC size_t
1087 hd64461video_frame_buffer_size(struct hd64461video_chip *hvc)
1088 {
1089 	vaddr_t page, startaddr, endaddr;
1090 	int x;
1091 
1092 	startaddr = HD64461_FBBASE;
1093 	endaddr = startaddr + HD64461_FBSIZE - 1;
1094 
1095 	page = startaddr;
1096 
1097 	x = random();
1098 	*(volatile int *)(page + 0) = x;
1099 	*(volatile int *)(page + 4) = ~x;
1100 
1101 	if (*(volatile int *)(page + 0) != x ||
1102 	    *(volatile int *)(page + 4) != ~x)
1103 		return (0);
1104 
1105 	for (page += HD64461_FBPAGESIZE; page < endaddr;
1106 	    page += HD64461_FBPAGESIZE) {
1107 		if (*(volatile int *)(page + 0) == x &&
1108 		    *(volatile int *)(page + 4) == ~x)
1109 			goto fbend_found;
1110 	}
1111 
1112 	page -= HD64461_FBPAGESIZE;
1113 	*(volatile int *)(page + 0) = x;
1114 	*(volatile int *)(page + 4) = ~x;
1115 
1116 	if (*(volatile int *)(page + 0) != x ||
1117 	    *(volatile int *)(page + 4) != ~x)
1118 		return (0);
1119 
1120  fbend_found:
1121 	return (page - startaddr);
1122 }
1123 
1124 STATIC void
1125 hd64461video_set_clut(struct hd64461video_chip *vc, int idx, int cnt,
1126     uint8_t *r, uint8_t *g, uint8_t *b)
1127 {
1128 	KASSERT(r && g && b);
1129 
1130 	/* index pallete */
1131 	hd64461_reg_write_2(HD64461_LCDCPTWAR_REG16,
1132 	    HD64461_LCDCPTWAR_SET(0, idx));
1133 	/* set data */
1134 	while (cnt && LEGAL_CLUT_INDEX(idx)) {
1135 		uint16_t v;
1136 #define	HD64461VIDEO_SET_CLUT(x)					\
1137 		v = (x >> 2) & 0x3f;					\
1138 		hd64461_reg_write_2(HD64461_LCDCPTWDR_REG16, v)
1139 		HD64461VIDEO_SET_CLUT(*r);
1140 		HD64461VIDEO_SET_CLUT(*g);
1141 		HD64461VIDEO_SET_CLUT(*b);
1142 #undef	HD64461VIDEO_SET_CLUT
1143 		r++, g++, b++;
1144 		idx++, cnt--;
1145 	}
1146 }
1147 
1148 STATIC void
1149 hd64461video_get_clut(struct hd64461video_chip *vc, int idx, int cnt,
1150     uint8_t *r, uint8_t *g, uint8_t *b)
1151 {
1152 	KASSERT(r && g && b);
1153 
1154 	/* index pallete */
1155 	hd64461_reg_write_2(HD64461_LCDCPTRAR_REG16,
1156 	    HD64461_LCDCPTRAR_SET(0, idx));
1157 
1158 	/* get data */
1159 	while (cnt && LEGAL_CLUT_INDEX(idx)) {
1160 		uint16_t v;
1161 #define	HD64461VIDEO_GET_CLUT(x)					\
1162 	v = hd64461_reg_read_2(HD64461_LCDCPTRDR_REG16);		\
1163 	x = HD64461_LCDCPTRDR(v);					\
1164 	x <<= 2
1165 		HD64461VIDEO_GET_CLUT(*r);
1166 		HD64461VIDEO_GET_CLUT(*g);
1167 		HD64461VIDEO_GET_CLUT(*b);
1168 #undef	HD64461VIDEO_GET_CLUT
1169 		r++, g++, b++;
1170 		idx++, cnt--;
1171 	}
1172 }
1173 
1174 STATIC int
1175 hd64461video_power(void *ctx, int type, long id, void *msg)
1176 {
1177 	struct hd64461video_softc *sc = ctx;
1178 	struct hd64461video_chip *hvc = sc->sc_vc;
1179 
1180 	switch ((int)msg) {
1181 	case PWR_RESUME:
1182 		DPRINTF("%s: ON%s\n", device_xname(sc->sc_dev),
1183 			sc->sc_vc->blanked ? " (blanked)" : "");
1184 		if (!sc->sc_vc->blanked)
1185 			hd64461video_on(hvc);
1186 		break;
1187 	case PWR_SUSPEND:
1188 		/* FALLTHROUGH */
1189 	case PWR_STANDBY:
1190 		DPRINTF("%s: OFF\n", device_xname(sc->sc_dev));
1191 		hd64461video_off(hvc);
1192 		break;
1193 	}
1194 
1195 	return 0;
1196 }
1197 
1198 STATIC void
1199 hd64461video_off(struct hd64461video_chip *vc)
1200 {
1201 
1202 	callout_stop(&vc->unblank_ch);
1203 
1204 	/* turn off display in LCDC */
1205 	hd64461video_display_onoff(vc, false);
1206 
1207 	/* turn off the LCD */
1208 	config_hook_call(CONFIG_HOOK_POWERCONTROL,
1209 			 CONFIG_HOOK_POWERCONTROL_LCD,
1210 			 (void *)0);
1211 }
1212 
1213 STATIC void
1214 hd64461video_on(struct hd64461video_chip *vc)
1215 {
1216 	int err;
1217 
1218 	/* turn on the LCD */
1219 	err = config_hook_call(CONFIG_HOOK_POWERCONTROL,
1220 			       CONFIG_HOOK_POWERCONTROL_LCD,
1221 			       (void *)1);
1222 
1223 	if (err == 0)
1224 		/* let the LCD warm up before turning on the display */
1225 		callout_reset(&vc->unblank_ch, hz/2,
1226 		    hd64461video_display_on, vc);
1227 	else
1228 		hd64461video_display_onoff(vc, true);
1229 }
1230 
1231 STATIC void
1232 hd64461video_display_on(void *arg)
1233 {
1234 
1235 	hd64461video_display_onoff(arg, true);
1236 }
1237 
1238 STATIC void
1239 hd64461video_display_onoff(void *arg, bool on)
1240 {
1241 	/* struct hd64461video_chip *vc = arg; */
1242 	uint16_t r;
1243 
1244 	if (platid_match(&platid, &platid_mask_MACH_HITACHI_PERSONA))
1245 		return;
1246 
1247 	/* turn on/off display in LCDC */
1248 	r = hd64461_reg_read_2(HD64461_LCDLDR1_REG16);
1249 	if (on)
1250 		r |= HD64461_LCDLDR1_DON;
1251 	else
1252 		r &= ~HD64461_LCDLDR1_DON;
1253 	hd64461_reg_write_2(HD64461_LCDLDR1_REG16, r);
1254 }
1255 
1256 #ifdef HD64461VIDEO_DEBUG
1257 STATIC void
1258 hd64461video_info(struct hd64461video_softc *sc)
1259 {
1260 	uint16_t r;
1261 	int color;
1262 	int i;
1263 
1264 	dbg_banner_function();
1265 	printf("---[LCD]---\n");
1266 	/* Base Address Register */
1267 	r = hd64461_reg_read_2(HD64461_LCDCBAR_REG16);
1268 	printf("LCDCBAR Frame buffer base address (4KB align): 0x%08x\n",
1269 	    HD64461_LCDCBAR_BASEADDR(r));
1270 
1271 	/* Line Address Offset Register */
1272 	r = hd64461_reg_read_2(HD64461_LCDCLOR_REG16);
1273 	printf("LCDCLOR Line address offset: %d\n", HD64461_LCDCLOR(r));
1274 
1275 	/* LCDC Control Register */
1276 	r = hd64461_reg_read_2(HD64461_LCDCCR_REG16);
1277 	i = HD64461_LCDCCR_DSPSEL(r);
1278 #define	DBG_BITMASK_PRINT(r, m)	dbg_bitmask_print(r, HD64461_LCDCCR_##m, #m)
1279 	printf("LCDCCR (LCD Control Register)\n");
1280 	DBG_BITMASK_PRINT(r, STBAK);
1281 	DBG_BITMASK_PRINT(r, STREQ);
1282 	DBG_BITMASK_PRINT(r, MOFF);
1283 	DBG_BITMASK_PRINT(r, REFSEL);
1284 	DBG_BITMASK_PRINT(r, EPON);
1285 	DBG_BITMASK_PRINT(r, SPON);
1286 	printf("\n");
1287 #undef	DBG_BITMASK_PRINT
1288 	printf("LCDCCR Display select LCD[%c] CRT[%c]\n",
1289 	    i == HD64461_LCDCCR_DSPSEL_LCD_CRT ||
1290 	    i == HD64461_LCDCCR_DSPSEL_LCD ? 'x' : '_',
1291 	    i == HD64461_LCDCCR_DSPSEL_LCD_CRT ||
1292 	    i == HD64461_LCDCCR_DSPSEL_CRT ? 'x' : '_');
1293 
1294 	/* LCD Display Register */
1295 	/* 1 */
1296 	r = hd64461_reg_read_2(HD64461_LCDLDR1_REG16);
1297 	printf("(LCD Display Register)\n");
1298 #define	DBG_BITMASK_PRINT(r, m)	dbg_bitmask_print(r, HD64461_LCDLDR1_##m, #m)
1299 	printf("LCDLDR1: ");
1300 	DBG_BITMASK_PRINT(r, DINV);
1301 	DBG_BITMASK_PRINT(r, DON);
1302 	printf("\n");
1303 #undef	DBG_BITMASK_PRINT
1304 	/* 2 */
1305 	r = hd64461_reg_read_2(HD64461_LCDLDR2_REG16);
1306 	i = HD64461_LCDLDR2_LM(r);
1307 #define	DBG_BITMASK_PRINT(r, m)	dbg_bitmask_print(r, HD64461_LCDLDR2_##m, #m)
1308 	printf("LCDLDR2: ");
1309 	DBG_BITMASK_PRINT(r, CC1);
1310 	DBG_BITMASK_PRINT(r, CC2);
1311 #undef	DBG_BITMASK_PRINT
1312 	color = 0;
1313 	switch (i) {
1314 	default:
1315 		panic("unknown unknown LCD interface.");
1316 		break;
1317 	case HD64461_LCDLDR2_LM_COLOR:
1318 		color = 1;
1319 		printf("Color");
1320 		break;
1321 	case HD64461_LCDLDR2_LM_GRAY8:
1322 		printf("8-bit grayscale");
1323 		break;
1324 	case HD64461_LCDLDR2_LM_GRAY4:
1325 		printf("4-bit grayscale");
1326 		break;
1327 	}
1328 	printf(" LCD interface\n");
1329 	/* 3 */
1330 	printf("LCDLDR3: ");
1331 	r = hd64461_reg_read_2(HD64461_LCDLDR3_REG16);
1332 	i = HD64461_LCDLDR3_CS(r);
1333 	printf("CS ");
1334 	switch (i) {
1335 	case 0:
1336 		printf("15");
1337 		break;
1338 	case 1:
1339 		printf("2.5");
1340 		break;
1341 	case 2:
1342 		printf("3.75");
1343 		break;
1344 	case 4:
1345 		printf("5");
1346 		break;
1347 	case 8:
1348 		printf("7.5");
1349 		break;
1350 	case 16:
1351 		printf("10");
1352 		break;
1353 	}
1354 	printf("%s MHz ", color ? "" : "/2");
1355 	i = HD64461_LCDLDR3_CG(r);
1356 	switch (i) {
1357 	case HD64461_LCDLDR3_CG_COLOR16:
1358 		printf("Color 64K colors\n");
1359 		break;
1360 	case HD64461_LCDLDR3_CG_COLOR8:
1361 		printf("Color 256 colors\n");
1362 		break;
1363 	case HD64461_LCDLDR3_CG_GRAY6:
1364 		printf("6-bit Grayscale\n");
1365 		break;
1366 	case HD64461_LCDLDR3_CG_GRAY4:
1367 		printf("4-bit Grayscale\n");
1368 		break;
1369 	case HD64461_LCDLDR3_CG_GRAY2:
1370 		printf("2-bit Grayscale\n");
1371 		break;
1372 	case HD64461_LCDLDR3_CG_GRAY1:
1373 		printf("1-bit Grayscale\n");
1374 		break;
1375 	}
1376 
1377 	/* LCD Number of Characters in Horizontal Register */
1378 	r = hd64461_reg_read_2(HD64461_LCDLDHNCR_REG16);
1379 	printf("LDHNCR: NHD %d NHT %d (# of horizontal characters)\n",
1380 	    HD64461_LCDLDHNCR_NHD(r), HD64461_LCDLDHNCR_NHT(r));
1381 
1382 	/* Start Position of Horizontal Register */
1383 	r = hd64461_reg_read_2(HD64461_LCDLDHNSR_REG16);
1384 	printf("LDHNSR: HSW %d HSP %d (start position of horizontal)\n",
1385 	    HD64461_LCDLDHNSR_HSW(r), HD64461_LCDLDHNSR_HSP(r));
1386 
1387 	/* Total Vertical Lines Register */
1388 	r = hd64461_reg_read_2(HD64461_LCDLDVNTR_REG16);
1389 	printf("LDVNTR: %d (total vertical lines)\n",
1390 	    HD64461_LCDLDVNTR_VTL(r));
1391 
1392 	/* Display Vertical Lines Register */
1393 	r = hd64461_reg_read_2(HD64461_LCDLDVNDR_REG16);
1394 	printf("LDVNDR: %d (display vertical lines)\n",
1395 	    HD64461_LCDLDVSPR_VSP(r));
1396 
1397 	/* Vertical Synchronization Position Register */
1398 	r = hd64461_reg_read_2(HD64461_LCDLDVSPR_REG16);
1399 	printf("LDVSPR: %d (vertical synchronization position)\n",
1400 	    HD64461_LCDLDVSPR_VSP(r));
1401 
1402 	/*
1403 	 * CRT Control Register
1404 	 */
1405 	printf("---[CRT]---\n");
1406 	r = hd64461_reg_read_2(HD64461_LCDCRTVTR_REG16);
1407 	printf("CRTVTR: %d (CRTC total vertical lines)\n",
1408 	    HD64461_LCDCRTVTR(r));
1409 	r = hd64461_reg_read_2(HD64461_LCDCRTVRSR_REG16);
1410 	printf("CRTVRSR: %d (CRTC vertical retrace start line)\n",
1411 	    HD64461_LCDCRTVRSR(r));
1412 	r = hd64461_reg_read_2(HD64461_LCDCRTVRER_REG16);
1413 	printf("CRTVRER: %d (CRTC vertical retrace end line)\n",
1414 	    HD64461_LCDCRTVRER(r));
1415 
1416 }
1417 
1418 STATIC void
1419 hd64461video_dump(void)
1420 {
1421 	uint16_t r;
1422 	printf("---[Display Mode Setting]---\n");
1423 #define	DUMPREG(x)							\
1424 	r = hd64461_reg_read_2(HD64461_LCD ## x ## _REG16);		\
1425 	__dbg_bit_print(r, sizeof(uint16_t), 0, 0, #x, DBG_BIT_PRINT_COUNT)
1426 	DUMPREG(CBAR);
1427 	DUMPREG(CLOR);
1428 	DUMPREG(CCR);
1429 	DUMPREG(LDR1);
1430 	DUMPREG(LDR2);
1431 	DUMPREG(LDHNCR);
1432 	DUMPREG(LDHNSR);
1433 	DUMPREG(LDVNTR);
1434 	DUMPREG(LDVNDR);
1435 	DUMPREG(LDVSPR);
1436 	DUMPREG(LDR3);
1437 	DUMPREG(CRTVTR);
1438 	DUMPREG(CRTVRSR);
1439 	DUMPREG(CRTVRER);
1440 #undef	DUMPREG
1441 	dbg_banner_line();
1442 }
1443 
1444 #endif /* HD64461VIDEO_DEBUG */
1445