wii_fb.c revision 239478
1/*-
2 * Copyright (C) 2012 Margarida Gouveia
3 * Copyright (c) 2003 Peter Grehan
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer,
11 *    without modification, immediately at the beginning of the file.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/powerpc/wii/wii_fb.c 239478 2012-08-21 06:31:26Z adrian $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/module.h>
33#include <sys/bus.h>
34#include <sys/kernel.h>
35#include <sys/sysctl.h>
36#include <sys/limits.h>
37#include <sys/conf.h>
38#include <sys/cons.h>
39#include <sys/proc.h>
40#include <sys/fcntl.h>
41#include <sys/malloc.h>
42#include <sys/fbio.h>
43#include <sys/consio.h>
44
45#include <vm/vm.h>
46#include <vm/pmap.h>
47
48#include <machine/bus.h>
49#include <machine/sc_machdep.h>
50#include <machine/platform.h>
51#include <machine/pmap.h>
52
53#include <sys/rman.h>
54
55#include <dev/fb/fbreg.h>
56#include <dev/syscons/syscons.h>
57
58#include <powerpc/wii/wii_fbreg.h>
59#include <powerpc/wii/wii_fbvar.h>
60
61/*
62 * Driver for the Nintendo Wii's framebuffer. Based on Linux's gcnfb.c.
63 */
64
65/*
66 * Syscons glue.
67 */
68static int	wiifb_scprobe(device_t);
69static int	wiifb_scattach(device_t);
70
71static device_method_t wiifb_sc_methods[] = {
72	DEVMETHOD(device_probe,		wiifb_scprobe),
73	DEVMETHOD(device_attach,	wiifb_scattach),
74
75	DEVMETHOD_END
76};
77
78static driver_t wiifb_sc_driver = {
79	"wiifb",
80	wiifb_sc_methods,
81	sizeof(sc_softc_t),
82};
83
84static devclass_t sc_devclass;
85
86DRIVER_MODULE(sc, wiibus, wiifb_sc_driver, sc_devclass, 0, 0);
87
88static int
89wiifb_scprobe(device_t dev)
90{
91	int error;
92
93	device_set_desc(dev, "Nintendo Wii frambuffer");
94
95	error = sc_probe_unit(device_get_unit(dev),
96	    device_get_flags(dev) | SC_AUTODETECT_KBD);
97	if (error != 0)
98		return (error);
99
100	/* This is a fake device, so make sure we added it ourselves */
101	return (BUS_PROBE_NOWILDCARD);
102}
103
104static int
105wiifb_scattach(device_t dev)
106{
107
108	return (sc_attach_unit(device_get_unit(dev),
109	    device_get_flags(dev) | SC_AUTODETECT_KBD));
110}
111
112/*
113 * Video driver routines and glue.
114 */
115static void			wiifb_reset_video(struct wiifb_softc *);
116static void			wiifb_enable_interrupts(struct wiifb_softc *);
117static void			wiifb_configure_tv_mode(struct wiifb_softc *);
118static void			wiifb_setup_framebuffer(struct wiifb_softc *);
119static int			wiifb_configure(int);
120static vi_probe_t		wiifb_probe;
121static vi_init_t		wiifb_init;
122static vi_get_info_t		wiifb_get_info;
123static vi_query_mode_t		wiifb_query_mode;
124static vi_set_mode_t		wiifb_set_mode;
125static vi_save_font_t		wiifb_save_font;
126static vi_load_font_t		wiifb_load_font;
127static vi_show_font_t		wiifb_show_font;
128static vi_save_palette_t	wiifb_save_palette;
129static vi_load_palette_t	wiifb_load_palette;
130static vi_set_border_t		wiifb_set_border;
131static vi_save_state_t		wiifb_save_state;
132static vi_load_state_t		wiifb_load_state;
133static vi_set_win_org_t		wiifb_set_win_org;
134static vi_read_hw_cursor_t	wiifb_read_hw_cursor;
135static vi_set_hw_cursor_t	wiifb_set_hw_cursor;
136static vi_set_hw_cursor_shape_t	wiifb_set_hw_cursor_shape;
137static vi_blank_display_t	wiifb_blank_display;
138static vi_mmap_t		wiifb_mmap;
139static vi_ioctl_t		wiifb_ioctl;
140static vi_clear_t		wiifb_clear;
141static vi_fill_rect_t		wiifb_fill_rect;
142static vi_bitblt_t		wiifb_bitblt;
143static vi_diag_t		wiifb_diag;
144static vi_save_cursor_palette_t	wiifb_save_cursor_palette;
145static vi_load_cursor_palette_t	wiifb_load_cursor_palette;
146static vi_copy_t		wiifb_copy;
147static vi_putp_t		wiifb_putp;
148static vi_putc_t		wiifb_putc;
149static vi_puts_t		wiifb_puts;
150static vi_putm_t		wiifb_putm;
151
152static video_switch_t wiifbvidsw = {
153	.probe			= wiifb_probe,
154	.init			= wiifb_init,
155	.get_info		= wiifb_get_info,
156	.query_mode		= wiifb_query_mode,
157	.set_mode		= wiifb_set_mode,
158	.save_font		= wiifb_save_font,
159	.load_font		= wiifb_load_font,
160	.show_font		= wiifb_show_font,
161	.save_palette		= wiifb_save_palette,
162	.load_palette		= wiifb_load_palette,
163	.set_border		= wiifb_set_border,
164	.save_state		= wiifb_save_state,
165	.load_state		= wiifb_load_state,
166	.set_win_org		= wiifb_set_win_org,
167	.read_hw_cursor		= wiifb_read_hw_cursor,
168	.set_hw_cursor		= wiifb_set_hw_cursor,
169	.set_hw_cursor_shape	= wiifb_set_hw_cursor_shape,
170	.blank_display		= wiifb_blank_display,
171	.mmap			= wiifb_mmap,
172	.ioctl			= wiifb_ioctl,
173	.clear			= wiifb_clear,
174	.fill_rect		= wiifb_fill_rect,
175	.bitblt			= wiifb_bitblt,
176	.diag			= wiifb_diag,
177	.save_cursor_palette	= wiifb_save_cursor_palette,
178	.load_cursor_palette	= wiifb_load_cursor_palette,
179	.copy			= wiifb_copy,
180	.putp			= wiifb_putp,
181	.putc			= wiifb_putc,
182	.puts			= wiifb_puts,
183	.putm			= wiifb_putm,
184};
185
186VIDEO_DRIVER(wiifb, wiifbvidsw, wiifb_configure);
187
188extern sc_rndr_sw_t txtrndrsw;
189RENDERER(wiifb, 0, txtrndrsw, gfb_set);
190RENDERER_MODULE(wiifb, gfb_set);
191
192static struct wiifb_softc wiifb_softc;
193static uint16_t wiifb_static_window[ROW*COL];
194extern u_char dflt_font_8[];
195
196/*
197 * Map the syscons colors to YUY2 (Y'UV422).
198 * Some colours are an approximation.
199 *
200 * The Wii has a 16 bit pixel, so each 32 bit DWORD encodes
201 * two pixels.  The upper 16 bits is for pixel 0 (left hand pixel
202 * in a pair), the lower 16 bits is for pixel 1.
203 *
204 * For now, we're going to ignore that entirely and just use the
205 * lower 16 bits for each pixel. We'll take the upper value into
206 * account later.
207 */
208static uint32_t wiifb_cmap[16] = {
209	0x00800080,	/* Black */
210	0x1dff1d6b,	/* Blue */
211	0x4b554b4a,	/* Green */
212	0x80808080,	/* Cyan */
213	0x4c544cff,	/* Red */
214	0x3aaa34b5,	/* Magenta */
215	0x7140718a,	/* Brown */
216	0xff80ff80,	/* White */
217	0x80808080,	/* Gray */
218	0xc399c36a,	/* Bright Blue */
219	0xd076d074,	/* Bright Green */
220	0x80808080,	/* Bright Cyan */
221	0x4c544cff,	/* Bright Red */
222	0x3aaa34b5,	/* Bright Magenta */
223	0xe100e194,	/* Bright Yellow */
224	0xff80ff80	/* Bright White */
225};
226
227static struct wiifb_mode_desc wiifb_modes[] = {
228	[WIIFB_MODE_NTSC_480i] = {
229		"NTSC 480i",
230		640, 480,
231		525,
232		WIIFB_MODE_FLAG_INTERLACED,
233	},
234	[WIIFB_MODE_NTSC_480p] = {
235		"NTSC 480p",
236		640, 480,
237		525,
238		WIIFB_MODE_FLAG_PROGRESSIVE,
239	},
240	[WIIFB_MODE_PAL_576i] = {
241		"PAL 576i (50Hz)",
242		640, 574,
243		625,
244		WIIFB_MODE_FLAG_INTERLACED,
245	},
246	[WIIFB_MODE_PAL_480i] = {
247		"PAL 480i (60Hz)",
248		640, 480,
249		525,
250		WIIFB_MODE_FLAG_INTERLACED,
251	},
252	[WIIFB_MODE_PAL_480p] = {
253		"PAL 480p",
254		640, 480,
255		525,
256		WIIFB_MODE_FLAG_PROGRESSIVE,
257	},
258};
259
260static const uint32_t wiifb_filter_coeft[] = {
261	0x1ae771f0, 0x0db4a574, 0x00c1188e, 0xc4c0cbe2, 0xfcecdecf,
262	0x13130f08, 0x00080c0f
263};
264
265static __inline int
266wiifb_background(uint8_t attr)
267{
268
269	return (attr >> 4);
270}
271
272static __inline int
273wiifb_foreground(uint8_t attr)
274{
275
276	return (attr & 0x0f);
277}
278
279static void
280wiifb_reset_video(struct wiifb_softc *sc)
281{
282	struct wiifb_dispcfg dc;
283
284	wiifb_dispcfg_read(sc, &dc);
285	dc.dc_reset = 1;
286	wiifb_dispcfg_write(sc, &dc);
287	dc.dc_reset = 0;
288	wiifb_dispcfg_write(sc, &dc);
289}
290
291static void
292wiifb_enable_interrupts(struct wiifb_softc *sc)
293{
294	struct wiifb_dispint di;
295
296#ifdef notyet
297	/*
298	 * Display Interrupt 0
299	 */
300	di.di_htiming = 1;
301	di.di_vtiming = 1;
302	di.di_enable = 1;
303	di.di_irq    = 1;
304	wiifb_dispint_write(sc, 0, &di);
305
306	/*
307	 * Display Interrupt 1
308	 */
309	di.di_htiming = sc->sc_format == WIIFB_FORMAT_PAL ? 433 : 430;
310	di.di_vtiming = sc->sc_mode->fd_lines;
311	di.di_enable = 1;
312	di.di_irq    = 1;
313	if (sc->sc_mode->fd_flags & WIIFB_MODE_FLAG_INTERLACED)
314		di.di_vtiming /= 2;
315	wiifb_dispint_write(sc, 1, &di);
316
317	/*
318	 * Display Interrupts 2 and 3 are not used.
319	 */
320	memset(&di, 0, sizeof(di));
321	wiifb_dispint_write(sc, 2, &di);
322	wiifb_dispint_write(sc, 3, &di);
323#else
324	memset(&di, 0, sizeof(di));
325	wiifb_dispint_write(sc, 0, &di);
326	wiifb_dispint_write(sc, 1, &di);
327	wiifb_dispint_write(sc, 2, &di);
328	wiifb_dispint_write(sc, 3, &di);
329#endif
330}
331
332/*
333 * Reference gcnfb.c for an in depth explanation.
334 * XXX only works with NTSC.
335 */
336static void
337wiifb_configure_tv_mode(struct wiifb_softc *sc)
338{
339	struct wiifb_vtiming vt;
340	struct wiifb_hscaling hs;
341	struct wiifb_htiming0 ht0;
342	struct wiifb_htiming1 ht1;
343	struct wiifb_vtimingodd vto;
344	struct wiifb_vtimingeven vte;
345	struct wiifb_burstblankodd bbo;
346	struct wiifb_burstblankeven bbe;
347	struct wiifb_picconf pc;
348	struct wiifb_mode_desc *mode = sc->sc_mode;
349	unsigned int height = mode->fd_height;
350	unsigned int width = mode->fd_width;
351	unsigned int eqpulse, interlacebias, shift;
352	const unsigned int maxwidth = 714;
353	unsigned int hblanking = maxwidth - width;
354	unsigned int hmargin = hblanking / 2;
355	unsigned int A = 20 + hmargin, C = 60 + hblanking - hmargin;
356	unsigned int maxheight = 484;
357	unsigned int P = 2 * (20 - 10 + 1);
358	unsigned int Q = 1;
359	unsigned int vblanking = maxheight - height;
360	unsigned int vmargin = vblanking / 2;
361	unsigned int prb = vmargin;
362	unsigned int psb = vblanking - vmargin;
363	int i;
364
365	/*
366	 * Vertical timing.
367	 */
368	if (mode->fd_flags & WIIFB_MODE_FLAG_INTERLACED) {
369		vt.vt_actvideo = height / 2;
370		interlacebias = 1;
371		shift = 0;
372	} else {
373		vt.vt_actvideo = height;
374		interlacebias = 0;
375		shift = 1;
376	}
377	/* Lines of equalization */
378	if (mode->fd_lines == 625)
379		eqpulse = 2 * 2.5;
380	else
381		eqpulse = 2 * 3;
382	vt.vt_eqpulse = eqpulse << shift;
383	wiifb_vtiming_write(sc, &vt);
384
385	/*
386	 * Horizontal timings.
387	 */
388	ht0.ht0_hlinew = 858 / 2;
389	ht1.ht1_hsyncw = 64;
390	ht0.ht0_hcolourstart = 71;
391	ht0.ht0_hcolourend = 71 + 34;
392	ht1.ht1_hblankstart = (858 / 2) - A;
393	ht1.ht1_hblankend = 64 + C;
394	wiifb_htiming0_write(sc, &ht0);
395	wiifb_htiming1_write(sc, &ht1);
396
397	/*
398	 * Vertical timing odd/even.
399	 */
400	if (vmargin & 1) {
401		vto.vto_preb = (P + interlacebias + prb) << shift;
402		vto.vto_postb = (Q - interlacebias + psb) << shift;
403		vte.vte_preb = (P + prb) << shift;
404		vte.vte_postb = (Q - psb) << shift;
405	} else {
406		/* XXX if this isn't 0, it doesn't work? */
407		prb = 0;
408		psb = 0;
409		vte.vte_preb = (P + interlacebias + prb) << shift;
410		vte.vte_postb = (Q - interlacebias + psb) << shift;
411		vto.vto_preb = (P + prb) << shift;
412		vto.vto_postb = (Q - psb) << shift;
413	}
414	wiifb_vtimingodd_write(sc, &vto);
415	wiifb_vtimingeven_write(sc, &vte);
416
417	/*
418	 * Burst blanking odd/even interval.
419	 */
420	bbo.bbo_bs1 = 2 * (18 - 7 + 1);
421	bbe.bbe_bs2 = bbo.bbo_bs3 = bbe.bbe_bs4 = bbo.bbo_bs1;
422	bbo.bbo_be1 = 2 * (525 - 7 + 1);
423	bbe.bbe_be2 = bbo.bbo_be3 = bbe.bbe_be4 = bbo.bbo_be1;
424	wiifb_burstblankodd_write(sc, &bbo);
425	wiifb_burstblankeven_write(sc, &bbe);
426
427	/*
428	 * Picture configuration.
429	 */
430	pc.pc_strides = (mode->fd_width * 2) / 32;
431	if (mode->fd_flags & WIIFB_MODE_FLAG_INTERLACED)
432		pc.pc_strides *= 2;
433	pc.pc_reads = (mode->fd_width * 2) / 32;
434	wiifb_picconf_write(sc, &pc);
435
436	/*
437	 * Horizontal scaling disabled.
438	 */
439	hs.hs_enable = 0;
440	hs.hs_step = 256;
441	wiifb_hscaling_write(sc, &hs);
442
443	/*
444	 * Filter coeficient table.
445	 */
446	for (i = 0; i < 7; i++)
447		wiifb_filtcoeft_write(sc, i, wiifb_filter_coeft[i]);
448
449	/*
450	 * Anti alias.
451	 */
452	wiifb_antialias_write(sc, 0x00ff0000);
453
454	/*
455	 * Video clock.
456	 */
457	wiifb_videoclk_write(sc,
458	    mode->fd_flags & WIIFB_MODE_FLAG_INTERLACED ? 0 : 1);
459
460	/*
461	 * Disable horizontal scaling width.
462	 */
463	wiifb_hscalingw_write(sc, mode->fd_width);
464
465	/*
466	 * DEBUG mode borders. Not used.
467	 */
468	wiifb_hborderend_write(sc, 0);
469	wiifb_hborderstart_write(sc, 0);
470
471	/*
472	 * XXX unknown registers.
473	 */
474	wiifb_unknown1_write(sc, 0x00ff);
475	wiifb_unknown2_write(sc, 0x00ff00ff);
476	wiifb_unknown3_write(sc, 0x00ff00ff);
477}
478
479static void
480wiifb_setup_framebuffer(struct wiifb_softc *sc)
481{
482	intptr_t addr = sc->sc_fb_addr;
483	struct wiifb_topfieldbasel tfbl;
484	struct wiifb_bottomfieldbasel bfbl;
485	struct wiifb_topfieldbaser tfbr;
486	struct wiifb_bottomfieldbaser bfbr;
487
488	tfbl.tfbl_fbaddr     = addr >> 5;
489	tfbl.tfbl_xoffset    = (addr / 2) & 0xf;
490	tfbl.tfbl_pageoffbit = 1;
491	wiifb_topfieldbasel_write(sc, &tfbl);
492
493	if (sc->sc_mode->fd_flags & WIIFB_MODE_FLAG_INTERLACED)
494		addr += sc->sc_mode->fd_width * 2;
495	bfbl.bfbl_fbaddr     = addr >> 5;
496	bfbl.bfbl_xoffset    = (addr / 2) & 0xf;
497	bfbl.bfbl_pageoffbit = 1;
498	wiifb_bottomfieldbasel_write(sc, &bfbl);
499
500	/*
501	 * Only used used for 3D.
502	 */
503	memset(&tfbr, 0, sizeof(tfbr));
504	memset(&bfbr, 0, sizeof(bfbr));
505	wiifb_topfieldbaser_write(sc, &tfbr);
506	wiifb_bottomfieldbaser_write(sc, &bfbr);
507}
508
509static int
510wiifb_configure(int flags)
511{
512	struct wiifb_softc *sc;
513	struct wiifb_dispcfg dc;
514	int progressive;
515
516	sc = &wiifb_softc;
517	if (sc->sc_initialized)
518		return 0;
519
520	sc->sc_console = 1;
521
522	sc->sc_fb_addr = WIIFB_FB_ADDR;
523	sc->sc_fb_size = WIIFB_FB_LEN;
524
525	sc->sc_reg_addr = WIIFB_REG_ADDR;
526	sc->sc_reg_size = WIIFB_REG_LEN;
527
528	wiifb_reset_video(sc);
529	wiifb_dispcfg_read(sc, &dc);
530	sc->sc_format = dc.dc_format;
531	sc->sc_component = wiifb_component_enabled(sc);
532	progressive = dc.dc_noninterlaced;
533	switch (sc->sc_format) {
534	case WIIFB_FORMAT_MPAL:
535	case WIIFB_FORMAT_DEBUG:
536	case WIIFB_FORMAT_NTSC:
537		sc->sc_mode = progressive ?
538		    &wiifb_modes[WIIFB_MODE_NTSC_480p] :
539		    &wiifb_modes[WIIFB_MODE_NTSC_480i];
540		break;
541	case WIIFB_FORMAT_PAL:
542		sc->sc_mode = progressive ?
543		    &wiifb_modes[WIIFB_MODE_PAL_480p] :
544		    &wiifb_modes[WIIFB_MODE_PAL_480i];
545		break;
546	}
547	sc->sc_height = sc->sc_mode->fd_height;
548	sc->sc_width = sc->sc_mode->fd_width;
549	/* Usually we multiply by 4, but I think this looks better. */
550	sc->sc_stride = sc->sc_width * 2;
551
552	wiifb_init(0, &sc->sc_va, 0);
553
554	sc->sc_initialized = 1;
555
556	return (0);
557}
558
559static int
560wiifb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
561{
562
563	return (0);
564}
565
566static int
567wiifb_init(int unit, video_adapter_t *adp, int flags)
568{
569	struct wiifb_softc *sc;
570	video_info_t *vi;
571
572	sc = (struct wiifb_softc *)adp;
573	vi = &adp->va_info;
574
575	vid_init_struct(adp, "wiifb", -1, unit);
576
577	sc->sc_font = dflt_font_8;
578	vi->vi_cheight = WIIFB_FONT_HEIGHT;
579	vi->vi_width = sc->sc_width/8;
580	vi->vi_height = sc->sc_height/vi->vi_cheight;
581	vi->vi_cwidth = 8;
582
583	/*
584	 * Clamp width/height to syscons maximums
585	 */
586	if (vi->vi_width > COL)
587		vi->vi_width = COL;
588	if (vi->vi_height > ROW)
589		vi->vi_height = ROW;
590
591	sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2;
592	sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2;
593
594	adp->va_window = (vm_offset_t) wiifb_static_window;
595	/* XXX no colour support */
596	adp->va_flags |= V_ADP_FONT | /*V_ADP_COLOR |*/ V_ADP_MODECHANGE;
597
598	vid_register(&sc->sc_va);
599
600	wiifb_configure_tv_mode(sc);
601	wiifb_setup_framebuffer(sc);
602	wiifb_enable_interrupts(sc);
603	wiifb_clear(adp);
604
605	return (0);
606}
607
608static int
609wiifb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
610{
611
612	bcopy(&adp->va_info, info, sizeof(*info));
613	return (0);
614}
615
616static int
617wiifb_query_mode(video_adapter_t *adp, video_info_t *info)
618{
619
620	return (0);
621}
622
623static int
624wiifb_set_mode(video_adapter_t *adp, int mode)
625{
626
627	return (0);
628}
629
630static int
631wiifb_save_font(video_adapter_t *adp, int page, int size, int width,
632    u_char *data, int c, int count)
633{
634
635	return (0);
636}
637
638static int
639wiifb_load_font(video_adapter_t *adp, int page, int size, int width,
640    u_char *data, int c, int count)
641{
642	struct wiifb_softc *sc = (struct wiifb_softc *)adp;
643
644	sc->sc_font = data;
645
646	return (0);
647}
648
649static int
650wiifb_show_font(video_adapter_t *adp, int page)
651{
652
653	return (0);
654}
655
656static int
657wiifb_save_palette(video_adapter_t *adp, u_char *palette)
658{
659
660	return (0);
661}
662
663static int
664wiifb_load_palette(video_adapter_t *adp, u_char *palette)
665{
666
667	return (0);
668}
669
670static int
671wiifb_set_border(video_adapter_t *adp, int border)
672{
673
674	return (wiifb_blank_display(adp, border));
675}
676
677static int
678wiifb_save_state(video_adapter_t *adp, void *p, size_t size)
679{
680
681	return (0);
682}
683
684static int
685wiifb_load_state(video_adapter_t *adp, void *p)
686{
687
688	return (0);
689}
690
691static int
692wiifb_set_win_org(video_adapter_t *adp, off_t offset)
693{
694
695	return (0);
696}
697
698static int
699wiifb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
700{
701
702	*col = *row = 0;
703
704	return (0);
705}
706
707static int
708wiifb_set_hw_cursor(video_adapter_t *adp, int col, int row)
709{
710
711	return (0);
712}
713
714static int
715wiifb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
716    int celsize, int blink)
717{
718
719	return (0);
720}
721
722static int
723wiifb_blank_display(video_adapter_t *adp, int mode)
724{
725	struct wiifb_softc *sc = (struct wiifb_softc *)adp;
726	uint32_t *p;
727
728	for (p = (uint32_t *)sc->sc_fb_addr;
729	    p < (uint32_t *)(sc->sc_fb_addr + sc->sc_fb_size);
730	    p++)
731		*p = wiifb_cmap[wiifb_background(SC_NORM_ATTR)];
732
733	return (0);
734}
735
736static int
737wiifb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
738    int prot, vm_memattr_t *memattr)
739{
740	struct wiifb_softc *sc;
741
742	sc = (struct wiifb_softc *)adp;
743
744	/*
745	 * This might be a legacy VGA mem request: if so, just point it at the
746	 * framebuffer, since it shouldn't be touched
747	 */
748	if (offset < sc->sc_stride*sc->sc_height) {
749		*paddr = sc->sc_fb_addr + offset;
750		return (0);
751	}
752
753	return (EINVAL);
754}
755
756static int
757wiifb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
758{
759
760	return (0);
761}
762
763static int
764wiifb_clear(video_adapter_t *adp)
765{
766
767	return (wiifb_blank_display(adp, 0));
768}
769
770static int
771wiifb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
772{
773
774	return (0);
775}
776
777static int
778wiifb_bitblt(video_adapter_t *adp, ...)
779{
780
781	return (0);
782}
783
784static int
785wiifb_diag(video_adapter_t *adp, int level)
786{
787
788	return (0);
789}
790
791static int
792wiifb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
793{
794
795	return (0);
796}
797
798static int
799wiifb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
800{
801
802	return (0);
803}
804
805static int
806wiifb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
807{
808
809	return (0);
810}
811
812static int
813wiifb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
814    int size, int bpp, int bit_ltor, int byte_ltor)
815{
816
817	return (0);
818}
819
820static int
821wiifb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
822{
823	struct wiifb_softc *sc;
824	int row;
825	int col;
826	int i, j, k;
827	uint32_t *addr;
828	u_char *p;
829	uint32_t fg, bg;
830	unsigned long pixel[2];
831
832	sc = (struct wiifb_softc *)adp;
833	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
834	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth / 2;
835	p = sc->sc_font + c*WIIFB_FONT_HEIGHT;
836	addr = (uint32_t *)sc->sc_fb_addr
837	    + (row + sc->sc_ymargin)*(sc->sc_stride/4)
838	    + col + sc->sc_xmargin;
839
840	bg = wiifb_cmap[wiifb_background(a)];
841	fg = wiifb_cmap[wiifb_foreground(a)];
842
843	for (i = 0; i < WIIFB_FONT_HEIGHT; i++) {
844		for (j = 0, k = 7; j < 4; j++, k--) {
845			if ((p[i] & (1 << k)) == 0)
846				pixel[0] = bg;
847			else
848				pixel[0] = fg;
849			k--;
850			if ((p[i] & (1 << k)) == 0)
851				pixel[1] = bg;
852			else
853				pixel[1] = fg;
854
855			addr[j] = (pixel[0] & 0xffff00ff) |
856			          (pixel[1] & 0x0000ff00);
857		}
858		addr += (sc->sc_stride/4);
859	}
860
861        return (0);
862}
863
864static int
865wiifb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
866{
867	int i;
868
869	for (i = 0; i < len; i++)
870		wiifb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
871
872	return (0);
873}
874
875static int
876wiifb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
877    uint32_t pixel_mask, int size, int width)
878{
879
880	return (0);
881}
882