1/*-
2 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 */
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: stable/11/sys/arm/broadcom/bcm2835/bcm2835_fb.c 356110 2019-12-27 03:00:18Z kevans $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/consio.h>
34#include <sys/fbio.h>
35#include <sys/kdb.h>
36#include <sys/kernel.h>
37#include <sys/malloc.h>
38#include <sys/module.h>
39
40#include <vm/vm.h>
41#include <vm/pmap.h>
42
43#include <dev/fb/fbreg.h>
44#include <dev/fdt/fdt_common.h>
45#include <dev/ofw/ofw_bus.h>
46#include <dev/ofw/ofw_bus_subr.h>
47#include <dev/syscons/syscons.h>
48
49#include <arm/broadcom/bcm2835/bcm2835_mbox_prop.h>
50
51#include "mbox_if.h"
52
53struct argb {
54	uint8_t		a;
55	uint8_t		r;
56	uint8_t		g;
57	uint8_t		b;
58};
59
60static struct argb bcmfb_palette[16] = {
61	{0x00, 0x00, 0x00, 0x00},
62	{0x00, 0x00, 0x00, 0xaa},
63	{0x00, 0x00, 0xaa, 0x00},
64	{0x00, 0x00, 0xaa, 0xaa},
65	{0x00, 0xaa, 0x00, 0x00},
66	{0x00, 0xaa, 0x00, 0xaa},
67	{0x00, 0xaa, 0x55, 0x00},
68	{0x00, 0xaa, 0xaa, 0xaa},
69	{0x00, 0x55, 0x55, 0x55},
70	{0x00, 0x55, 0x55, 0xff},
71	{0x00, 0x55, 0xff, 0x55},
72	{0x00, 0x55, 0xff, 0xff},
73	{0x00, 0xff, 0x55, 0x55},
74	{0x00, 0xff, 0x55, 0xff},
75	{0x00, 0xff, 0xff, 0x55},
76	{0x00, 0xff, 0xff, 0xff}
77};
78
79/* mouse pointer from dev/syscons/scgfbrndr.c */
80static u_char mouse_pointer[16] = {
81        0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
82        0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
83};
84
85#define	BCMFB_FONT_HEIGHT	16
86#define	BCMFB_FONT_WIDTH	8
87#define	FB_WIDTH		640
88#define	FB_HEIGHT		480
89#define	FB_DEPTH		24
90
91struct bcmsc_softc {
92	/* Videoadpater part */
93	video_adapter_t	va;
94
95	intptr_t	fb_addr;
96	intptr_t	fb_paddr;
97	unsigned int	fb_size;
98
99	unsigned int	height;
100	unsigned int	width;
101	unsigned int	depth;
102	unsigned int	stride;
103
104	unsigned int	xmargin;
105	unsigned int	ymargin;
106
107	unsigned char	*font;
108	int		fbswap;
109	int		initialized;
110};
111
112static struct bcmsc_softc bcmsc;
113
114static struct ofw_compat_data compat_data[] = {
115	{"broadcom,bcm2835-fb",		1},
116	{"brcm,bcm2708-fb",		1},
117	{NULL,				0}
118};
119
120static int bcm_fb_probe(device_t);
121static int bcm_fb_attach(device_t);
122static void bcmfb_update_margins(video_adapter_t *adp);
123static int bcmfb_configure(int);
124
125static int
126bcm_fb_probe(device_t dev)
127{
128	int error;
129
130	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
131		return (ENXIO);
132
133	device_set_desc(dev, "BCM2835 framebuffer device");
134	error = sc_probe_unit(device_get_unit(dev),
135	    device_get_flags(dev) | SC_AUTODETECT_KBD);
136	if (error != 0)
137		return (error);
138
139	return (BUS_PROBE_DEFAULT);
140}
141
142static int
143bcm_fb_attach(device_t dev)
144{
145	struct bcm2835_fb_config fb;
146	struct bcmsc_softc *sc;
147
148	sc = (struct bcmsc_softc *)vid_get_adapter(vid_find_adapter(
149	    "bcmfb", 0));
150	if (sc != NULL)
151		device_set_softc(dev, sc);
152	else
153		sc = device_get_softc(dev);
154
155	memset(&fb, 0, sizeof(fb));
156	if (bcm2835_mbox_fb_get_w_h(&fb) != 0)
157		return (ENXIO);
158	fb.bpp = FB_DEPTH;
159	fb.vxres = fb.xres;
160	fb.vyres = fb.yres;
161	fb.xoffset = fb.yoffset = 0;
162	if (bcm2835_mbox_fb_init(&fb) != 0)
163		return (ENXIO);
164
165	sc->fb_addr = (intptr_t)pmap_mapdev(fb.base, fb.size);
166	sc->fb_paddr = fb.base;
167	sc->fb_size = fb.size;
168	sc->depth = fb.bpp;
169	sc->stride = fb.pitch;
170	sc->width = fb.xres;
171	sc->height = fb.yres;
172	bcmfb_update_margins(&sc->va);
173
174	if (sc_attach_unit(device_get_unit(dev),
175	    device_get_flags(dev) | SC_AUTODETECT_KBD) != 0) {
176		device_printf(dev, "failed to attach syscons\n");
177		return (ENXIO);
178	}
179
180	device_printf(dev, "%dx%d(%dx%d@%d,%d) %dbpp\n", fb.xres, fb.yres,
181	    fb.vxres, fb.vyres, fb.xoffset, fb.yoffset, fb.bpp);
182	device_printf(dev,
183	    "fbswap: %d, pitch %d, base 0x%08x, screen_size %d\n",
184	    sc->fbswap, fb.pitch, fb.base, fb.size);
185
186	return (0);
187}
188
189static device_method_t bcm_fb_methods[] = {
190	/* Device interface */
191	DEVMETHOD(device_probe,		bcm_fb_probe),
192	DEVMETHOD(device_attach,	bcm_fb_attach),
193
194	{ 0, 0 }
195};
196
197static devclass_t bcm_fb_devclass;
198
199static driver_t bcm_fb_driver = {
200	"fb",
201	bcm_fb_methods,
202	sizeof(struct bcmsc_softc),
203};
204
205DRIVER_MODULE(bcm2835fb, ofwbus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
206DRIVER_MODULE(bcm2835fb, simplebus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
207
208/*
209 * Video driver routines and glue.
210 */
211static vi_probe_t		bcmfb_probe;
212static vi_init_t		bcmfb_init;
213static vi_get_info_t		bcmfb_get_info;
214static vi_query_mode_t		bcmfb_query_mode;
215static vi_set_mode_t		bcmfb_set_mode;
216static vi_save_font_t		bcmfb_save_font;
217static vi_load_font_t		bcmfb_load_font;
218static vi_show_font_t		bcmfb_show_font;
219static vi_save_palette_t	bcmfb_save_palette;
220static vi_load_palette_t	bcmfb_load_palette;
221static vi_set_border_t		bcmfb_set_border;
222static vi_save_state_t		bcmfb_save_state;
223static vi_load_state_t		bcmfb_load_state;
224static vi_set_win_org_t		bcmfb_set_win_org;
225static vi_read_hw_cursor_t	bcmfb_read_hw_cursor;
226static vi_set_hw_cursor_t	bcmfb_set_hw_cursor;
227static vi_set_hw_cursor_shape_t	bcmfb_set_hw_cursor_shape;
228static vi_blank_display_t	bcmfb_blank_display;
229static vi_mmap_t		bcmfb_mmap;
230static vi_ioctl_t		bcmfb_ioctl;
231static vi_clear_t		bcmfb_clear;
232static vi_fill_rect_t		bcmfb_fill_rect;
233static vi_bitblt_t		bcmfb_bitblt;
234static vi_diag_t		bcmfb_diag;
235static vi_save_cursor_palette_t	bcmfb_save_cursor_palette;
236static vi_load_cursor_palette_t	bcmfb_load_cursor_palette;
237static vi_copy_t		bcmfb_copy;
238static vi_putp_t		bcmfb_putp;
239static vi_putc_t		bcmfb_putc;
240static vi_puts_t		bcmfb_puts;
241static vi_putm_t		bcmfb_putm;
242
243static video_switch_t bcmfbvidsw = {
244	.probe			= bcmfb_probe,
245	.init			= bcmfb_init,
246	.get_info		= bcmfb_get_info,
247	.query_mode		= bcmfb_query_mode,
248	.set_mode		= bcmfb_set_mode,
249	.save_font		= bcmfb_save_font,
250	.load_font		= bcmfb_load_font,
251	.show_font		= bcmfb_show_font,
252	.save_palette		= bcmfb_save_palette,
253	.load_palette		= bcmfb_load_palette,
254	.set_border		= bcmfb_set_border,
255	.save_state		= bcmfb_save_state,
256	.load_state		= bcmfb_load_state,
257	.set_win_org		= bcmfb_set_win_org,
258	.read_hw_cursor		= bcmfb_read_hw_cursor,
259	.set_hw_cursor		= bcmfb_set_hw_cursor,
260	.set_hw_cursor_shape	= bcmfb_set_hw_cursor_shape,
261	.blank_display		= bcmfb_blank_display,
262	.mmap			= bcmfb_mmap,
263	.ioctl			= bcmfb_ioctl,
264	.clear			= bcmfb_clear,
265	.fill_rect		= bcmfb_fill_rect,
266	.bitblt			= bcmfb_bitblt,
267	.diag			= bcmfb_diag,
268	.save_cursor_palette	= bcmfb_save_cursor_palette,
269	.load_cursor_palette	= bcmfb_load_cursor_palette,
270	.copy			= bcmfb_copy,
271	.putp			= bcmfb_putp,
272	.putc			= bcmfb_putc,
273	.puts			= bcmfb_puts,
274	.putm			= bcmfb_putm,
275};
276
277VIDEO_DRIVER(bcmfb, bcmfbvidsw, bcmfb_configure);
278
279static vr_init_t bcmrend_init;
280static vr_clear_t bcmrend_clear;
281static vr_draw_border_t bcmrend_draw_border;
282static vr_draw_t bcmrend_draw;
283static vr_set_cursor_t bcmrend_set_cursor;
284static vr_draw_cursor_t bcmrend_draw_cursor;
285static vr_blink_cursor_t bcmrend_blink_cursor;
286static vr_set_mouse_t bcmrend_set_mouse;
287static vr_draw_mouse_t bcmrend_draw_mouse;
288
289/*
290 * We use our own renderer; this is because we must emulate a hardware
291 * cursor.
292 */
293static sc_rndr_sw_t bcmrend = {
294	bcmrend_init,
295	bcmrend_clear,
296	bcmrend_draw_border,
297	bcmrend_draw,
298	bcmrend_set_cursor,
299	bcmrend_draw_cursor,
300	bcmrend_blink_cursor,
301	bcmrend_set_mouse,
302	bcmrend_draw_mouse
303};
304
305RENDERER(bcmfb, 0, bcmrend, gfb_set);
306RENDERER_MODULE(bcmfb, gfb_set);
307
308static void
309bcmrend_init(scr_stat* scp)
310{
311}
312
313static void
314bcmrend_clear(scr_stat* scp, int c, int attr)
315{
316}
317
318static void
319bcmrend_draw_border(scr_stat* scp, int color)
320{
321}
322
323static void
324bcmrend_draw(scr_stat* scp, int from, int count, int flip)
325{
326	video_adapter_t* adp = scp->sc->adp;
327	int i, c, a;
328
329	if (!flip) {
330		/* Normal printing */
331		vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
332	} else {
333		/* This is for selections and such: invert the color attribute */
334		for (i = count; i-- > 0; ++from) {
335			c = sc_vtb_getc(&scp->vtb, from);
336			a = sc_vtb_geta(&scp->vtb, from) >> 8;
337			vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
338		}
339	}
340}
341
342static void
343bcmrend_set_cursor(scr_stat* scp, int base, int height, int blink)
344{
345}
346
347static void
348bcmrend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
349{
350	int bytes, col, i, j, row;
351	struct bcmsc_softc *sc;
352	uint8_t *addr;
353	video_adapter_t *adp;
354
355	adp = scp->sc->adp;
356	sc = (struct bcmsc_softc *)adp;
357
358	if (scp->curs_attr.height <= 0)
359		return;
360
361	if (sc->fb_addr == 0)
362		return;
363
364	if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
365		return;
366
367	/* calculate the coordinates in the video buffer */
368	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
369	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
370
371	addr = (uint8_t *)sc->fb_addr
372	    + (row + sc->ymargin)*(sc->stride)
373	    + (sc->depth/8) * (col + sc->xmargin);
374
375	bytes = sc->depth / 8;
376	/* our cursor consists of simply inverting the char under it */
377	for (i = 0; i < adp->va_info.vi_cheight; i++) {
378		for (j = 0; j < adp->va_info.vi_cwidth; j++) {
379			switch (sc->depth) {
380			case 32:
381			case 24:
382				addr[bytes*j + 2] ^= 0xff;
383				/* FALLTHROUGH */
384			case 16:
385				addr[bytes*j + 1] ^= 0xff;
386				addr[bytes*j] ^= 0xff;
387				break;
388			default:
389				break;
390			}
391		}
392
393		addr += sc->stride;
394	}
395}
396
397static void
398bcmrend_blink_cursor(scr_stat* scp, int at, int flip)
399{
400}
401
402static void
403bcmrend_set_mouse(scr_stat* scp)
404{
405}
406
407static void
408bcmrend_draw_mouse(scr_stat* scp, int x, int y, int on)
409{
410	vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
411}
412
413static uint16_t bcmfb_static_window[ROW*COL];
414extern u_char dflt_font_16[];
415
416/*
417 * Update videoadapter settings after changing resolution
418 */
419static void
420bcmfb_update_margins(video_adapter_t *adp)
421{
422	struct bcmsc_softc *sc;
423	video_info_t *vi;
424
425	sc = (struct bcmsc_softc *)adp;
426	vi = &adp->va_info;
427
428	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
429	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
430}
431
432static int
433bcmfb_configure(int flags)
434{
435	char bootargs[2048], *n, *p, *v;
436	pcell_t cell;
437	phandle_t chosen, display, root;
438	struct bcmsc_softc *sc;
439
440	sc = &bcmsc;
441	if (sc->initialized)
442		return (0);
443
444	sc->width = 0;
445	sc->height = 0;
446
447	/*
448	 * It seems there is no way to let syscons framework know
449	 * that framebuffer resolution has changed. So just try
450	 * to fetch data from FDT bootargs, FDT display data and
451	 * finally go with defaults if everything else has failed.
452	 */
453	chosen = OF_finddevice("/chosen");
454	if (chosen != 0 &&
455	    OF_getprop(chosen, "bootargs", &bootargs, sizeof(bootargs)) > 0) {
456		p = bootargs;
457		while ((v = strsep(&p, " ")) != NULL) {
458			if (*v == '\0')
459				continue;
460			n = strsep(&v, "=");
461			if (strcmp(n, "bcm2708_fb.fbwidth") == 0 && v != NULL)
462				sc->width = (unsigned int)strtol(v, NULL, 0);
463			else if (strcmp(n, "bcm2708_fb.fbheight") == 0 &&
464			    v != NULL)
465				sc->height = (unsigned int)strtol(v, NULL, 0);
466			else if (strcmp(n, "bcm2708_fb.fbswap") == 0 &&
467			    v != NULL)
468				if (*v == '1')
469					sc->fbswap = 1;
470		}
471	}
472
473	root = OF_finddevice("/");
474	if ((root != 0) &&
475	    (display = fdt_find_compatible(root, "broadcom,bcm2835-fb", 1))) {
476		if (sc->width == 0) {
477			if ((OF_getencprop(display, "broadcom,width",
478			    &cell, sizeof(cell))) > 0)
479				sc->width = cell;
480		}
481
482		if (sc->height == 0) {
483			if ((OF_getprop(display, "broadcom,height",
484			    &cell, sizeof(cell))) > 0)
485				sc->height = cell;
486		}
487	}
488
489	if (sc->width == 0)
490		sc->width = FB_WIDTH;
491	if (sc->height == 0)
492		sc->height = FB_HEIGHT;
493
494	bcmfb_init(0, &sc->va, 0);
495	sc->initialized = 1;
496
497	return (0);
498}
499
500static int
501bcmfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
502{
503
504	return (0);
505}
506
507static int
508bcmfb_init(int unit, video_adapter_t *adp, int flags)
509{
510	struct bcmsc_softc *sc;
511	video_info_t *vi;
512
513	sc = (struct bcmsc_softc *)adp;
514	vi = &adp->va_info;
515
516	vid_init_struct(adp, "bcmfb", -1, unit);
517
518	sc->font = dflt_font_16;
519	vi->vi_cheight = BCMFB_FONT_HEIGHT;
520	vi->vi_cwidth = BCMFB_FONT_WIDTH;
521	vi->vi_width = sc->width / vi->vi_cwidth;
522	vi->vi_height = sc->height / vi->vi_cheight;
523
524	/*
525	 * Clamp width/height to syscons maximums
526	 */
527	if (vi->vi_width > COL)
528		vi->vi_width = COL;
529	if (vi->vi_height > ROW)
530		vi->vi_height = ROW;
531
532	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
533	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
534
535	adp->va_window = (vm_offset_t) bcmfb_static_window;
536	adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
537
538	vid_register(&sc->va);
539
540	return (0);
541}
542
543static int
544bcmfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
545{
546	bcopy(&adp->va_info, info, sizeof(*info));
547	return (0);
548}
549
550static int
551bcmfb_query_mode(video_adapter_t *adp, video_info_t *info)
552{
553	return (0);
554}
555
556static int
557bcmfb_set_mode(video_adapter_t *adp, int mode)
558{
559	return (0);
560}
561
562static int
563bcmfb_save_font(video_adapter_t *adp, int page, int size, int width,
564    u_char *data, int c, int count)
565{
566	return (0);
567}
568
569static int
570bcmfb_load_font(video_adapter_t *adp, int page, int size, int width,
571    u_char *data, int c, int count)
572{
573	struct bcmsc_softc *sc;
574
575	sc = (struct bcmsc_softc *)adp;
576	sc->font = data;
577
578	return (0);
579}
580
581static int
582bcmfb_show_font(video_adapter_t *adp, int page)
583{
584	return (0);
585}
586
587static int
588bcmfb_save_palette(video_adapter_t *adp, u_char *palette)
589{
590	return (0);
591}
592
593static int
594bcmfb_load_palette(video_adapter_t *adp, u_char *palette)
595{
596	return (0);
597}
598
599static int
600bcmfb_set_border(video_adapter_t *adp, int border)
601{
602	return (bcmfb_blank_display(adp, border));
603}
604
605static int
606bcmfb_save_state(video_adapter_t *adp, void *p, size_t size)
607{
608	return (0);
609}
610
611static int
612bcmfb_load_state(video_adapter_t *adp, void *p)
613{
614	return (0);
615}
616
617static int
618bcmfb_set_win_org(video_adapter_t *adp, off_t offset)
619{
620	return (0);
621}
622
623static int
624bcmfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
625{
626	*col = *row = 0;
627
628	return (0);
629}
630
631static int
632bcmfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
633{
634	return (0);
635}
636
637static int
638bcmfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
639    int celsize, int blink)
640{
641	return (0);
642}
643
644static int
645bcmfb_blank_display(video_adapter_t *adp, int mode)
646{
647
648	struct bcmsc_softc *sc;
649
650	sc = (struct bcmsc_softc *)adp;
651	if (sc && sc->fb_addr)
652		memset((void*)sc->fb_addr, 0, sc->fb_size);
653
654	return (0);
655}
656
657static int
658bcmfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
659    int prot, vm_memattr_t *memattr)
660{
661	struct bcmsc_softc *sc;
662
663	sc = (struct bcmsc_softc *)adp;
664
665	/*
666	 * This might be a legacy VGA mem request: if so, just point it at the
667	 * framebuffer, since it shouldn't be touched
668	 */
669	if (offset < sc->stride*sc->height) {
670		*paddr = sc->fb_paddr + offset;
671		return (0);
672	}
673
674	return (EINVAL);
675}
676
677static int
678bcmfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
679{
680	struct bcmsc_softc *sc;
681	struct fbtype *fb;
682
683	sc = (struct bcmsc_softc *)adp;
684
685	switch (cmd) {
686	case FBIOGTYPE:
687		fb = (struct fbtype *)data;
688		fb->fb_type = FBTYPE_PCIMISC;
689		fb->fb_height = sc->height;
690		fb->fb_width = sc->width;
691		fb->fb_depth = sc->depth;
692		if (sc->depth <= 1 || sc->depth > 8)
693			fb->fb_cmsize = 0;
694		else
695			fb->fb_cmsize = 1 << sc->depth;
696		fb->fb_size = sc->fb_size;
697		break;
698	default:
699		return (fb_commonioctl(adp, cmd, data));
700	}
701
702	return (0);
703}
704
705static int
706bcmfb_clear(video_adapter_t *adp)
707{
708
709	return (bcmfb_blank_display(adp, 0));
710}
711
712static int
713bcmfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
714{
715
716	return (0);
717}
718
719static int
720bcmfb_bitblt(video_adapter_t *adp, ...)
721{
722
723	return (0);
724}
725
726static int
727bcmfb_diag(video_adapter_t *adp, int level)
728{
729
730	return (0);
731}
732
733static int
734bcmfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
735{
736
737	return (0);
738}
739
740static int
741bcmfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
742{
743
744	return (0);
745}
746
747static int
748bcmfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
749{
750
751	return (0);
752}
753
754static int
755bcmfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
756    int size, int bpp, int bit_ltor, int byte_ltor)
757{
758
759	return (0);
760}
761
762static int
763bcmfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
764{
765	int bytes, col, i, j, k, row;
766	struct bcmsc_softc *sc;
767	u_char *p;
768	uint8_t *addr, fg, bg, color;
769	uint16_t rgb;
770
771	sc = (struct bcmsc_softc *)adp;
772
773	if (sc->fb_addr == 0)
774		return (0);
775
776	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
777	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
778	p = sc->font + c*BCMFB_FONT_HEIGHT;
779	addr = (uint8_t *)sc->fb_addr
780	    + (row + sc->ymargin)*(sc->stride)
781	    + (sc->depth/8) * (col + sc->xmargin);
782
783	fg = a & 0xf ;
784	bg = (a >> 4) & 0xf;
785
786	bytes = sc->depth / 8;
787	for (i = 0; i < BCMFB_FONT_HEIGHT; i++) {
788		for (j = 0, k = 7; j < 8; j++, k--) {
789			if ((p[i] & (1 << k)) == 0)
790				color = bg;
791			else
792				color = fg;
793
794			switch (sc->depth) {
795			case 32:
796			case 24:
797				if (sc->fbswap) {
798					addr[bytes * j + 0] =
799					    bcmfb_palette[color].b;
800					addr[bytes * j + 1] =
801					    bcmfb_palette[color].g;
802					addr[bytes * j + 2] =
803					    bcmfb_palette[color].r;
804				} else {
805					addr[bytes * j + 0] =
806					    bcmfb_palette[color].r;
807					addr[bytes * j + 1] =
808					    bcmfb_palette[color].g;
809					addr[bytes * j + 2] =
810					    bcmfb_palette[color].b;
811				}
812				if (sc->depth == 32)
813					addr[bytes * j + 3] =
814					    bcmfb_palette[color].a;
815				break;
816			case 16:
817				rgb = (bcmfb_palette[color].r >> 3) << 11;
818				rgb |= (bcmfb_palette[color].g >> 2) << 5;
819				rgb |= (bcmfb_palette[color].b >> 3);
820				addr[bytes * j] = rgb & 0xff;
821				addr[bytes * j + 1] = (rgb >> 8) & 0xff;
822			default:
823				/* Not supported yet */
824				break;
825			}
826		}
827
828		addr += (sc->stride);
829	}
830
831        return (0);
832}
833
834static int
835bcmfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
836{
837	int i;
838
839	for (i = 0; i < len; i++)
840		bcmfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
841
842	return (0);
843}
844
845static int
846bcmfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
847    uint32_t pixel_mask, int size, int width)
848{
849
850	return (0);
851}
852