1/*-
2 * Copyright (c) 2013 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#include <sys/cdefs.h>
27__FBSDID("$FreeBSD$");
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/bus.h>
32#include <sys/conf.h>
33#include <sys/endian.h>
34#include <sys/kernel.h>
35#include <sys/lock.h>
36#include <sys/malloc.h>
37#include <sys/module.h>
38#include <sys/mutex.h>
39#include <sys/resource.h>
40#include <sys/rman.h>
41#include <sys/fbio.h>
42#include <sys/consio.h>
43
44#include <sys/kdb.h>
45
46#include <machine/bus.h>
47#include <machine/cpu.h>
48#include <machine/cpufunc.h>
49#include <machine/resource.h>
50#include <machine/intr.h>
51
52#include <dev/fdt/fdt_common.h>
53#include <dev/ofw/ofw_bus.h>
54#include <dev/ofw/ofw_bus_subr.h>
55
56#include <dev/fb/fbreg.h>
57#include <dev/syscons/syscons.h>
58
59#include "am335x_lcd.h"
60
61struct video_adapter_softc {
62	/* Videoadpater part */
63	video_adapter_t	va;
64	int		console;
65
66	intptr_t	fb_addr;
67	intptr_t	fb_paddr;
68	unsigned int	fb_size;
69
70	unsigned int	height;
71	unsigned int	width;
72	unsigned int	depth;
73	unsigned int	stride;
74
75	unsigned int	xmargin;
76	unsigned int	ymargin;
77
78	unsigned char	*font;
79	int		initialized;
80};
81
82struct argb {
83	uint8_t		a;
84	uint8_t		r;
85	uint8_t		g;
86	uint8_t		b;
87};
88
89static struct argb am335x_syscons_palette[16] = {
90	{0x00, 0x00, 0x00, 0x00},
91	{0x00, 0x00, 0x00, 0xaa},
92	{0x00, 0x00, 0xaa, 0x00},
93	{0x00, 0x00, 0xaa, 0xaa},
94	{0x00, 0xaa, 0x00, 0x00},
95	{0x00, 0xaa, 0x00, 0xaa},
96	{0x00, 0xaa, 0x55, 0x00},
97	{0x00, 0xaa, 0xaa, 0xaa},
98	{0x00, 0x55, 0x55, 0x55},
99	{0x00, 0x55, 0x55, 0xff},
100	{0x00, 0x55, 0xff, 0x55},
101	{0x00, 0x55, 0xff, 0xff},
102	{0x00, 0xff, 0x55, 0x55},
103	{0x00, 0xff, 0x55, 0xff},
104	{0x00, 0xff, 0xff, 0x55},
105	{0x00, 0xff, 0xff, 0xff}
106};
107
108/* mouse pointer from dev/syscons/scgfbrndr.c */
109static u_char mouse_pointer[16] = {
110        0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
111        0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
112};
113
114#define	AM335X_FONT_HEIGHT	16
115
116#define FB_WIDTH		640
117#define FB_HEIGHT		480
118#define FB_DEPTH		24
119
120static struct video_adapter_softc va_softc;
121
122static int am335x_syscons_configure(int flags);
123
124/*
125 * Video driver routines and glue.
126 */
127static vi_probe_t		am335x_syscons_probe;
128static vi_init_t		am335x_syscons_init;
129static vi_get_info_t		am335x_syscons_get_info;
130static vi_query_mode_t		am335x_syscons_query_mode;
131static vi_set_mode_t		am335x_syscons_set_mode;
132static vi_save_font_t		am335x_syscons_save_font;
133static vi_load_font_t		am335x_syscons_load_font;
134static vi_show_font_t		am335x_syscons_show_font;
135static vi_save_palette_t	am335x_syscons_save_palette;
136static vi_load_palette_t	am335x_syscons_load_palette;
137static vi_set_border_t		am335x_syscons_set_border;
138static vi_save_state_t		am335x_syscons_save_state;
139static vi_load_state_t		am335x_syscons_load_state;
140static vi_set_win_org_t		am335x_syscons_set_win_org;
141static vi_read_hw_cursor_t	am335x_syscons_read_hw_cursor;
142static vi_set_hw_cursor_t	am335x_syscons_set_hw_cursor;
143static vi_set_hw_cursor_shape_t	am335x_syscons_set_hw_cursor_shape;
144static vi_blank_display_t	am335x_syscons_blank_display;
145static vi_mmap_t		am335x_syscons_mmap;
146static vi_ioctl_t		am335x_syscons_ioctl;
147static vi_clear_t		am335x_syscons_clear;
148static vi_fill_rect_t		am335x_syscons_fill_rect;
149static vi_bitblt_t		am335x_syscons_bitblt;
150static vi_diag_t		am335x_syscons_diag;
151static vi_save_cursor_palette_t	am335x_syscons_save_cursor_palette;
152static vi_load_cursor_palette_t	am335x_syscons_load_cursor_palette;
153static vi_copy_t		am335x_syscons_copy;
154static vi_putp_t		am335x_syscons_putp;
155static vi_putc_t		am335x_syscons_putc;
156static vi_puts_t		am335x_syscons_puts;
157static vi_putm_t		am335x_syscons_putm;
158
159static video_switch_t am335x_sysconsvidsw = {
160	.probe			= am335x_syscons_probe,
161	.init			= am335x_syscons_init,
162	.get_info		= am335x_syscons_get_info,
163	.query_mode		= am335x_syscons_query_mode,
164	.set_mode		= am335x_syscons_set_mode,
165	.save_font		= am335x_syscons_save_font,
166	.load_font		= am335x_syscons_load_font,
167	.show_font		= am335x_syscons_show_font,
168	.save_palette		= am335x_syscons_save_palette,
169	.load_palette		= am335x_syscons_load_palette,
170	.set_border		= am335x_syscons_set_border,
171	.save_state		= am335x_syscons_save_state,
172	.load_state		= am335x_syscons_load_state,
173	.set_win_org		= am335x_syscons_set_win_org,
174	.read_hw_cursor		= am335x_syscons_read_hw_cursor,
175	.set_hw_cursor		= am335x_syscons_set_hw_cursor,
176	.set_hw_cursor_shape	= am335x_syscons_set_hw_cursor_shape,
177	.blank_display		= am335x_syscons_blank_display,
178	.mmap			= am335x_syscons_mmap,
179	.ioctl			= am335x_syscons_ioctl,
180	.clear			= am335x_syscons_clear,
181	.fill_rect		= am335x_syscons_fill_rect,
182	.bitblt			= am335x_syscons_bitblt,
183	.diag			= am335x_syscons_diag,
184	.save_cursor_palette	= am335x_syscons_save_cursor_palette,
185	.load_cursor_palette	= am335x_syscons_load_cursor_palette,
186	.copy			= am335x_syscons_copy,
187	.putp			= am335x_syscons_putp,
188	.putc			= am335x_syscons_putc,
189	.puts			= am335x_syscons_puts,
190	.putm			= am335x_syscons_putm,
191};
192
193VIDEO_DRIVER(am335x_syscons, am335x_sysconsvidsw, am335x_syscons_configure);
194
195static vr_init_t am335x_rend_init;
196static vr_clear_t am335x_rend_clear;
197static vr_draw_border_t am335x_rend_draw_border;
198static vr_draw_t am335x_rend_draw;
199static vr_set_cursor_t am335x_rend_set_cursor;
200static vr_draw_cursor_t am335x_rend_draw_cursor;
201static vr_blink_cursor_t am335x_rend_blink_cursor;
202static vr_set_mouse_t am335x_rend_set_mouse;
203static vr_draw_mouse_t am335x_rend_draw_mouse;
204
205/*
206 * We use our own renderer; this is because we must emulate a hardware
207 * cursor.
208 */
209static sc_rndr_sw_t am335x_rend = {
210	am335x_rend_init,
211	am335x_rend_clear,
212	am335x_rend_draw_border,
213	am335x_rend_draw,
214	am335x_rend_set_cursor,
215	am335x_rend_draw_cursor,
216	am335x_rend_blink_cursor,
217	am335x_rend_set_mouse,
218	am335x_rend_draw_mouse
219};
220
221RENDERER(am335x_syscons, 0, am335x_rend, gfb_set);
222RENDERER_MODULE(am335x_syscons, gfb_set);
223
224static void
225am335x_rend_init(scr_stat* scp)
226{
227}
228
229static void
230am335x_rend_clear(scr_stat* scp, int c, int attr)
231{
232}
233
234static void
235am335x_rend_draw_border(scr_stat* scp, int color)
236{
237}
238
239static void
240am335x_rend_draw(scr_stat* scp, int from, int count, int flip)
241{
242	video_adapter_t* adp = scp->sc->adp;
243	int i, c, a;
244
245	if (!flip) {
246		/* Normal printing */
247		vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
248	} else {
249		/* This is for selections and such: invert the color attribute */
250		for (i = count; i-- > 0; ++from) {
251			c = sc_vtb_getc(&scp->vtb, from);
252			a = sc_vtb_geta(&scp->vtb, from) >> 8;
253			vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
254		}
255	}
256}
257
258static void
259am335x_rend_set_cursor(scr_stat* scp, int base, int height, int blink)
260{
261}
262
263static void
264am335x_rend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
265{
266	video_adapter_t* adp = scp->sc->adp;
267	struct video_adapter_softc *sc;
268	int row, col;
269	uint8_t *addr;
270	int i, j, bytes;
271
272	sc = (struct video_adapter_softc *)adp;
273
274	if (scp->curs_attr.height <= 0)
275		return;
276
277	if (sc->fb_addr == 0)
278		return;
279
280	if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
281		return;
282
283	/* calculate the coordinates in the video buffer */
284	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
285	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
286
287	addr = (uint8_t *)sc->fb_addr
288	    + (row + sc->ymargin)*(sc->stride)
289	    + (sc->depth/8) * (col + sc->xmargin);
290
291	bytes = sc->depth/8;
292
293	/* our cursor consists of simply inverting the char under it */
294	for (i = 0; i < adp->va_info.vi_cheight; i++) {
295		for (j = 0; j < adp->va_info.vi_cwidth; j++) {
296			switch (sc->depth) {
297			case 32:
298			case 24:
299				addr[bytes*j + 2] ^= 0xff;
300				/* FALLTHROUGH */
301			case 16:
302				addr[bytes*j + 1] ^= 0xff;
303				addr[bytes*j] ^= 0xff;
304				break;
305			default:
306				break;
307			}
308		}
309
310		addr += sc->stride;
311	}
312}
313
314static void
315am335x_rend_blink_cursor(scr_stat* scp, int at, int flip)
316{
317}
318
319static void
320am335x_rend_set_mouse(scr_stat* scp)
321{
322}
323
324static void
325am335x_rend_draw_mouse(scr_stat* scp, int x, int y, int on)
326{
327	vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
328}
329
330static uint16_t am335x_syscons_static_window[ROW*COL];
331extern u_char dflt_font_16[];
332
333/*
334 * Update videoadapter settings after changing resolution
335 */
336static void
337am335x_syscons_update_margins(video_adapter_t *adp)
338{
339	struct video_adapter_softc *sc;
340	video_info_t *vi;
341
342	sc = (struct video_adapter_softc *)adp;
343	vi = &adp->va_info;
344
345	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
346	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
347}
348
349static phandle_t
350am335x_syscons_find_panel_node(phandle_t start)
351{
352	phandle_t child;
353	phandle_t result;
354
355	for (child = OF_child(start); child != 0; child = OF_peer(child)) {
356		if (fdt_is_compatible(child, "ti,am335x-lcd"))
357			return (child);
358		if ((result = am335x_syscons_find_panel_node(child)))
359			return (result);
360	}
361
362	return (0);
363}
364
365static int
366am335x_syscons_configure(int flags)
367{
368	struct video_adapter_softc *va_sc;
369
370	va_sc = &va_softc;
371	phandle_t display, root;
372	pcell_t cell;
373
374	if (va_sc->initialized)
375		return (0);
376
377	va_sc->width = 0;
378	va_sc->height = 0;
379
380	/*
381	 * It seems there is no way to let syscons framework know
382	 * that framebuffer resolution has changed. So just try
383	 * to fetch data from FDT and go with defaults if failed
384	 */
385	root = OF_finddevice("/");
386	if ((root != 0) &&
387	    (display = am335x_syscons_find_panel_node(root))) {
388		if ((OF_getprop(display, "panel_width",
389		    &cell, sizeof(cell))) > 0)
390			va_sc->width = (int)fdt32_to_cpu(cell);
391
392		if ((OF_getprop(display, "panel_height",
393		    &cell, sizeof(cell))) > 0)
394			va_sc->height = (int)fdt32_to_cpu(cell);
395	}
396
397	if (va_sc->width == 0)
398		va_sc->width = FB_WIDTH;
399	if (va_sc->height == 0)
400		va_sc->height = FB_HEIGHT;
401
402	am335x_syscons_init(0, &va_sc->va, 0);
403
404	va_sc->initialized = 1;
405
406	return (0);
407}
408
409static int
410am335x_syscons_probe(int unit, video_adapter_t **adp, void *arg, int flags)
411{
412
413	return (0);
414}
415
416static int
417am335x_syscons_init(int unit, video_adapter_t *adp, int flags)
418{
419	struct video_adapter_softc *sc;
420	video_info_t *vi;
421
422	sc = (struct video_adapter_softc *)adp;
423	vi = &adp->va_info;
424
425	vid_init_struct(adp, "am335x_syscons", -1, unit);
426
427	sc->font = dflt_font_16;
428	vi->vi_cheight = AM335X_FONT_HEIGHT;
429	vi->vi_cwidth = 8;
430
431	vi->vi_width = sc->width/8;
432	vi->vi_height = sc->height/vi->vi_cheight;
433
434	/*
435	 * Clamp width/height to syscons maximums
436	 */
437	if (vi->vi_width > COL)
438		vi->vi_width = COL;
439	if (vi->vi_height > ROW)
440		vi->vi_height = ROW;
441
442	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
443	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
444
445
446	adp->va_window = (vm_offset_t) am335x_syscons_static_window;
447	adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
448
449	vid_register(&sc->va);
450
451	return (0);
452}
453
454static int
455am335x_syscons_get_info(video_adapter_t *adp, int mode, video_info_t *info)
456{
457	bcopy(&adp->va_info, info, sizeof(*info));
458	return (0);
459}
460
461static int
462am335x_syscons_query_mode(video_adapter_t *adp, video_info_t *info)
463{
464	return (0);
465}
466
467static int
468am335x_syscons_set_mode(video_adapter_t *adp, int mode)
469{
470	return (0);
471}
472
473static int
474am335x_syscons_save_font(video_adapter_t *adp, int page, int size, int width,
475    u_char *data, int c, int count)
476{
477	return (0);
478}
479
480static int
481am335x_syscons_load_font(video_adapter_t *adp, int page, int size, int width,
482    u_char *data, int c, int count)
483{
484	struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
485
486	sc->font = data;
487
488	return (0);
489}
490
491static int
492am335x_syscons_show_font(video_adapter_t *adp, int page)
493{
494	return (0);
495}
496
497static int
498am335x_syscons_save_palette(video_adapter_t *adp, u_char *palette)
499{
500	return (0);
501}
502
503static int
504am335x_syscons_load_palette(video_adapter_t *adp, u_char *palette)
505{
506	return (0);
507}
508
509static int
510am335x_syscons_set_border(video_adapter_t *adp, int border)
511{
512	return (am335x_syscons_blank_display(adp, border));
513}
514
515static int
516am335x_syscons_save_state(video_adapter_t *adp, void *p, size_t size)
517{
518	return (0);
519}
520
521static int
522am335x_syscons_load_state(video_adapter_t *adp, void *p)
523{
524	return (0);
525}
526
527static int
528am335x_syscons_set_win_org(video_adapter_t *adp, off_t offset)
529{
530	return (0);
531}
532
533static int
534am335x_syscons_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
535{
536	*col = *row = 0;
537
538	return (0);
539}
540
541static int
542am335x_syscons_set_hw_cursor(video_adapter_t *adp, int col, int row)
543{
544	return (0);
545}
546
547static int
548am335x_syscons_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
549    int celsize, int blink)
550{
551	return (0);
552}
553
554static int
555am335x_syscons_blank_display(video_adapter_t *adp, int mode)
556{
557
558	struct video_adapter_softc *sc;
559
560	sc = (struct video_adapter_softc *)adp;
561	if (sc && sc->fb_addr)
562		memset((void*)sc->fb_addr, 0, sc->fb_size);
563
564	return (0);
565}
566
567static int
568am335x_syscons_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
569    int prot, vm_memattr_t *memattr)
570{
571	struct video_adapter_softc *sc;
572
573	sc = (struct video_adapter_softc *)adp;
574
575	/*
576	 * This might be a legacy VGA mem request: if so, just point it at the
577	 * framebuffer, since it shouldn't be touched
578	 */
579	if (offset < sc->stride*sc->height) {
580		*paddr = sc->fb_paddr + offset;
581		return (0);
582	}
583
584	return (EINVAL);
585}
586
587static int
588am335x_syscons_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
589{
590	struct video_adapter_softc *sc;
591	struct fbtype *fb;
592
593	sc = (struct video_adapter_softc *)adp;
594
595	switch (cmd) {
596	case FBIOGTYPE:
597		fb = (struct fbtype *)data;
598		fb->fb_type = FBTYPE_PCIMISC;
599		fb->fb_height = sc->height;
600		fb->fb_width = sc->width;
601		fb->fb_depth = sc->depth;
602		if (sc->depth <= 1 || sc->depth > 8)
603			fb->fb_cmsize = 0;
604		else
605			fb->fb_cmsize = 1 << sc->depth;
606		fb->fb_size = sc->fb_size;
607		break;
608	default:
609		return (fb_commonioctl(adp, cmd, data));
610	}
611
612	return (0);
613}
614
615static int
616am335x_syscons_clear(video_adapter_t *adp)
617{
618
619	return (am335x_syscons_blank_display(adp, 0));
620}
621
622static int
623am335x_syscons_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
624{
625
626	return (0);
627}
628
629static int
630am335x_syscons_bitblt(video_adapter_t *adp, ...)
631{
632
633	return (0);
634}
635
636static int
637am335x_syscons_diag(video_adapter_t *adp, int level)
638{
639
640	return (0);
641}
642
643static int
644am335x_syscons_save_cursor_palette(video_adapter_t *adp, u_char *palette)
645{
646
647	return (0);
648}
649
650static int
651am335x_syscons_load_cursor_palette(video_adapter_t *adp, u_char *palette)
652{
653
654	return (0);
655}
656
657static int
658am335x_syscons_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
659{
660
661	return (0);
662}
663
664static int
665am335x_syscons_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
666    int size, int bpp, int bit_ltor, int byte_ltor)
667{
668
669	return (0);
670}
671
672static int
673am335x_syscons_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
674{
675	struct video_adapter_softc *sc;
676	int row;
677	int col;
678	int i, j, k;
679	uint8_t *addr;
680	u_char *p;
681	uint8_t fg, bg, color;
682	uint16_t rgb;
683
684	sc = (struct video_adapter_softc *)adp;
685
686	if (sc->fb_addr == 0)
687		return (0);
688
689	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
690	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
691	p = sc->font + c*AM335X_FONT_HEIGHT;
692	addr = (uint8_t *)sc->fb_addr
693	    + (row + sc->ymargin)*(sc->stride)
694	    + (sc->depth/8) * (col + sc->xmargin);
695
696	fg = a & 0xf ;
697	bg = (a >> 4) & 0xf;
698
699	for (i = 0; i < AM335X_FONT_HEIGHT; i++) {
700		for (j = 0, k = 7; j < 8; j++, k--) {
701			if ((p[i] & (1 << k)) == 0)
702				color = bg;
703			else
704				color = fg;
705
706			switch (sc->depth) {
707			case 32:
708				addr[4*j+0] = am335x_syscons_palette[color].r;
709				addr[4*j+1] = am335x_syscons_palette[color].g;
710				addr[4*j+2] = am335x_syscons_palette[color].b;
711				addr[4*j+3] = am335x_syscons_palette[color].a;
712				break;
713			case 24:
714				addr[3*j] = am335x_syscons_palette[color].r;
715				addr[3*j+1] = am335x_syscons_palette[color].g;
716				addr[3*j+2] = am335x_syscons_palette[color].b;
717				break;
718			case 16:
719				rgb = (am335x_syscons_palette[color].r >> 3) << 11;
720				rgb |= (am335x_syscons_palette[color].g >> 2) << 5;
721				rgb |= (am335x_syscons_palette[color].b >> 3);
722				addr[2*j] = rgb & 0xff;
723				addr[2*j + 1] = (rgb >> 8) & 0xff;
724			default:
725				/* Not supported yet */
726				break;
727			}
728		}
729
730		addr += (sc->stride);
731	}
732
733        return (0);
734}
735
736static int
737am335x_syscons_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
738{
739	int i;
740
741	for (i = 0; i < len; i++)
742		am335x_syscons_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
743
744	return (0);
745}
746
747static int
748am335x_syscons_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
749    uint32_t pixel_mask, int size, int width)
750{
751
752	return (0);
753}
754
755/* Initialization function */
756int am335x_lcd_syscons_setup(vm_offset_t vaddr, vm_paddr_t paddr,
757    struct panel_info *panel)
758{
759	struct video_adapter_softc *va_sc = &va_softc;
760
761	va_sc->fb_addr = vaddr;
762	va_sc->fb_paddr = paddr;
763	va_sc->depth = panel->bpp;
764	va_sc->stride = panel->bpp*panel->panel_width/8;
765
766	va_sc->width = panel->panel_width;
767	va_sc->height = panel->panel_height;
768	va_sc->fb_size = va_sc->width * va_sc->height
769	    * va_sc->depth/8;
770	am335x_syscons_update_margins(&va_sc->va);
771
772	return (0);
773}
774
775/*
776 * Define a stub keyboard driver in case one hasn't been
777 * compiled into the kernel
778 */
779#include <sys/kbio.h>
780#include <dev/kbd/kbdreg.h>
781
782static int dummy_kbd_configure(int flags);
783
784keyboard_switch_t am335x_dummysw;
785
786static int
787dummy_kbd_configure(int flags)
788{
789
790	return (0);
791}
792KEYBOARD_DRIVER(am335x_dummy, am335x_dummysw, dummy_kbd_configure);
793