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: stable/11/sys/arm/ti/am335x/am335x_lcd_syscons.c 356110 2019-12-27 03:00:18Z kevans $");
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/resource.h>
48#include <machine/intr.h>
49
50#include <dev/fdt/fdt_common.h>
51#include <dev/ofw/ofw_bus.h>
52#include <dev/ofw/ofw_bus_subr.h>
53
54#include <dev/fb/fbreg.h>
55#include <dev/syscons/syscons.h>
56
57#include "am335x_lcd.h"
58
59struct video_adapter_softc {
60	/* Videoadpater part */
61	video_adapter_t	va;
62	int		console;
63
64	intptr_t	fb_addr;
65	intptr_t	fb_paddr;
66	unsigned int	fb_size;
67
68	unsigned int	height;
69	unsigned int	width;
70	unsigned int	depth;
71	unsigned int	stride;
72
73	unsigned int	xmargin;
74	unsigned int	ymargin;
75
76	unsigned char	*font;
77	int		initialized;
78};
79
80struct argb {
81	uint8_t		a;
82	uint8_t		r;
83	uint8_t		g;
84	uint8_t		b;
85};
86
87static struct argb am335x_syscons_palette[16] = {
88	{0x00, 0x00, 0x00, 0x00},
89	{0x00, 0x00, 0x00, 0xaa},
90	{0x00, 0x00, 0xaa, 0x00},
91	{0x00, 0x00, 0xaa, 0xaa},
92	{0x00, 0xaa, 0x00, 0x00},
93	{0x00, 0xaa, 0x00, 0xaa},
94	{0x00, 0xaa, 0x55, 0x00},
95	{0x00, 0xaa, 0xaa, 0xaa},
96	{0x00, 0x55, 0x55, 0x55},
97	{0x00, 0x55, 0x55, 0xff},
98	{0x00, 0x55, 0xff, 0x55},
99	{0x00, 0x55, 0xff, 0xff},
100	{0x00, 0xff, 0x55, 0x55},
101	{0x00, 0xff, 0x55, 0xff},
102	{0x00, 0xff, 0xff, 0x55},
103	{0x00, 0xff, 0xff, 0xff}
104};
105
106/* mouse pointer from dev/syscons/scgfbrndr.c */
107static u_char mouse_pointer[16] = {
108        0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
109        0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
110};
111
112#define	AM335X_FONT_HEIGHT	16
113
114#define FB_WIDTH		640
115#define FB_HEIGHT		480
116#define FB_DEPTH		24
117
118static struct video_adapter_softc va_softc;
119
120static int am335x_syscons_configure(int flags);
121
122/*
123 * Video driver routines and glue.
124 */
125static vi_probe_t		am335x_syscons_probe;
126static vi_init_t		am335x_syscons_init;
127static vi_get_info_t		am335x_syscons_get_info;
128static vi_query_mode_t		am335x_syscons_query_mode;
129static vi_set_mode_t		am335x_syscons_set_mode;
130static vi_save_font_t		am335x_syscons_save_font;
131static vi_load_font_t		am335x_syscons_load_font;
132static vi_show_font_t		am335x_syscons_show_font;
133static vi_save_palette_t	am335x_syscons_save_palette;
134static vi_load_palette_t	am335x_syscons_load_palette;
135static vi_set_border_t		am335x_syscons_set_border;
136static vi_save_state_t		am335x_syscons_save_state;
137static vi_load_state_t		am335x_syscons_load_state;
138static vi_set_win_org_t		am335x_syscons_set_win_org;
139static vi_read_hw_cursor_t	am335x_syscons_read_hw_cursor;
140static vi_set_hw_cursor_t	am335x_syscons_set_hw_cursor;
141static vi_set_hw_cursor_shape_t	am335x_syscons_set_hw_cursor_shape;
142static vi_blank_display_t	am335x_syscons_blank_display;
143static vi_mmap_t		am335x_syscons_mmap;
144static vi_ioctl_t		am335x_syscons_ioctl;
145static vi_clear_t		am335x_syscons_clear;
146static vi_fill_rect_t		am335x_syscons_fill_rect;
147static vi_bitblt_t		am335x_syscons_bitblt;
148static vi_diag_t		am335x_syscons_diag;
149static vi_save_cursor_palette_t	am335x_syscons_save_cursor_palette;
150static vi_load_cursor_palette_t	am335x_syscons_load_cursor_palette;
151static vi_copy_t		am335x_syscons_copy;
152static vi_putp_t		am335x_syscons_putp;
153static vi_putc_t		am335x_syscons_putc;
154static vi_puts_t		am335x_syscons_puts;
155static vi_putm_t		am335x_syscons_putm;
156
157static video_switch_t am335x_sysconsvidsw = {
158	.probe			= am335x_syscons_probe,
159	.init			= am335x_syscons_init,
160	.get_info		= am335x_syscons_get_info,
161	.query_mode		= am335x_syscons_query_mode,
162	.set_mode		= am335x_syscons_set_mode,
163	.save_font		= am335x_syscons_save_font,
164	.load_font		= am335x_syscons_load_font,
165	.show_font		= am335x_syscons_show_font,
166	.save_palette		= am335x_syscons_save_palette,
167	.load_palette		= am335x_syscons_load_palette,
168	.set_border		= am335x_syscons_set_border,
169	.save_state		= am335x_syscons_save_state,
170	.load_state		= am335x_syscons_load_state,
171	.set_win_org		= am335x_syscons_set_win_org,
172	.read_hw_cursor		= am335x_syscons_read_hw_cursor,
173	.set_hw_cursor		= am335x_syscons_set_hw_cursor,
174	.set_hw_cursor_shape	= am335x_syscons_set_hw_cursor_shape,
175	.blank_display		= am335x_syscons_blank_display,
176	.mmap			= am335x_syscons_mmap,
177	.ioctl			= am335x_syscons_ioctl,
178	.clear			= am335x_syscons_clear,
179	.fill_rect		= am335x_syscons_fill_rect,
180	.bitblt			= am335x_syscons_bitblt,
181	.diag			= am335x_syscons_diag,
182	.save_cursor_palette	= am335x_syscons_save_cursor_palette,
183	.load_cursor_palette	= am335x_syscons_load_cursor_palette,
184	.copy			= am335x_syscons_copy,
185	.putp			= am335x_syscons_putp,
186	.putc			= am335x_syscons_putc,
187	.puts			= am335x_syscons_puts,
188	.putm			= am335x_syscons_putm,
189};
190
191VIDEO_DRIVER(am335x_syscons, am335x_sysconsvidsw, am335x_syscons_configure);
192
193static vr_init_t am335x_rend_init;
194static vr_clear_t am335x_rend_clear;
195static vr_draw_border_t am335x_rend_draw_border;
196static vr_draw_t am335x_rend_draw;
197static vr_set_cursor_t am335x_rend_set_cursor;
198static vr_draw_cursor_t am335x_rend_draw_cursor;
199static vr_blink_cursor_t am335x_rend_blink_cursor;
200static vr_set_mouse_t am335x_rend_set_mouse;
201static vr_draw_mouse_t am335x_rend_draw_mouse;
202
203/*
204 * We use our own renderer; this is because we must emulate a hardware
205 * cursor.
206 */
207static sc_rndr_sw_t am335x_rend = {
208	am335x_rend_init,
209	am335x_rend_clear,
210	am335x_rend_draw_border,
211	am335x_rend_draw,
212	am335x_rend_set_cursor,
213	am335x_rend_draw_cursor,
214	am335x_rend_blink_cursor,
215	am335x_rend_set_mouse,
216	am335x_rend_draw_mouse
217};
218
219RENDERER(am335x_syscons, 0, am335x_rend, gfb_set);
220RENDERER_MODULE(am335x_syscons, gfb_set);
221
222static void
223am335x_rend_init(scr_stat* scp)
224{
225}
226
227static void
228am335x_rend_clear(scr_stat* scp, int c, int attr)
229{
230}
231
232static void
233am335x_rend_draw_border(scr_stat* scp, int color)
234{
235}
236
237static void
238am335x_rend_draw(scr_stat* scp, int from, int count, int flip)
239{
240	video_adapter_t* adp = scp->sc->adp;
241	int i, c, a;
242
243	if (!flip) {
244		/* Normal printing */
245		vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
246	} else {
247		/* This is for selections and such: invert the color attribute */
248		for (i = count; i-- > 0; ++from) {
249			c = sc_vtb_getc(&scp->vtb, from);
250			a = sc_vtb_geta(&scp->vtb, from) >> 8;
251			vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
252		}
253	}
254}
255
256static void
257am335x_rend_set_cursor(scr_stat* scp, int base, int height, int blink)
258{
259}
260
261static void
262am335x_rend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
263{
264	video_adapter_t* adp = scp->sc->adp;
265	struct video_adapter_softc *sc;
266	int row, col;
267	uint8_t *addr;
268	int i, j, bytes;
269
270	sc = (struct video_adapter_softc *)adp;
271
272	if (scp->curs_attr.height <= 0)
273		return;
274
275	if (sc->fb_addr == 0)
276		return;
277
278	if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
279		return;
280
281	/* calculate the coordinates in the video buffer */
282	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
283	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
284
285	addr = (uint8_t *)sc->fb_addr
286	    + (row + sc->ymargin)*(sc->stride)
287	    + (sc->depth/8) * (col + sc->xmargin);
288
289	bytes = sc->depth/8;
290
291	/* our cursor consists of simply inverting the char under it */
292	for (i = 0; i < adp->va_info.vi_cheight; i++) {
293		for (j = 0; j < adp->va_info.vi_cwidth; j++) {
294			switch (sc->depth) {
295			case 32:
296			case 24:
297				addr[bytes*j + 2] ^= 0xff;
298				/* FALLTHROUGH */
299			case 16:
300				addr[bytes*j + 1] ^= 0xff;
301				addr[bytes*j] ^= 0xff;
302				break;
303			default:
304				break;
305			}
306		}
307
308		addr += sc->stride;
309	}
310}
311
312static void
313am335x_rend_blink_cursor(scr_stat* scp, int at, int flip)
314{
315}
316
317static void
318am335x_rend_set_mouse(scr_stat* scp)
319{
320}
321
322static void
323am335x_rend_draw_mouse(scr_stat* scp, int x, int y, int on)
324{
325	vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
326}
327
328static uint16_t am335x_syscons_static_window[ROW*COL];
329extern u_char dflt_font_16[];
330
331/*
332 * Update videoadapter settings after changing resolution
333 */
334static void
335am335x_syscons_update_margins(video_adapter_t *adp)
336{
337	struct video_adapter_softc *sc;
338	video_info_t *vi;
339
340	sc = (struct video_adapter_softc *)adp;
341	vi = &adp->va_info;
342
343	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
344	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
345}
346
347static phandle_t
348am335x_syscons_find_panel_node(phandle_t start)
349{
350	phandle_t child;
351	phandle_t result;
352
353	for (child = OF_child(start); child != 0; child = OF_peer(child)) {
354		if (fdt_is_compatible(child, "ti,am335x-lcd"))
355			return (child);
356		if ((result = am335x_syscons_find_panel_node(child)))
357			return (result);
358	}
359
360	return (0);
361}
362
363static int
364am335x_syscons_configure(int flags)
365{
366	struct video_adapter_softc *va_sc;
367
368	va_sc = &va_softc;
369	phandle_t display, root;
370	pcell_t cell;
371
372	if (va_sc->initialized)
373		return (0);
374
375	va_sc->width = 0;
376	va_sc->height = 0;
377
378	/*
379	 * It seems there is no way to let syscons framework know
380	 * that framebuffer resolution has changed. So just try
381	 * to fetch data from FDT and go with defaults if failed
382	 */
383	root = OF_finddevice("/");
384	if ((root != 0) &&
385	    (display = am335x_syscons_find_panel_node(root))) {
386		if ((OF_getencprop(display, "panel_width", &cell,
387		    sizeof(cell))) > 0)
388			va_sc->width = cell;
389
390		if ((OF_getencprop(display, "panel_height", &cell,
391		    sizeof(cell))) > 0)
392			va_sc->height = cell;
393	}
394
395	if (va_sc->width == 0)
396		va_sc->width = FB_WIDTH;
397	if (va_sc->height == 0)
398		va_sc->height = FB_HEIGHT;
399
400	am335x_syscons_init(0, &va_sc->va, 0);
401
402	va_sc->initialized = 1;
403
404	return (0);
405}
406
407static int
408am335x_syscons_probe(int unit, video_adapter_t **adp, void *arg, int flags)
409{
410
411	return (0);
412}
413
414static int
415am335x_syscons_init(int unit, video_adapter_t *adp, int flags)
416{
417	struct video_adapter_softc *sc;
418	video_info_t *vi;
419
420	sc = (struct video_adapter_softc *)adp;
421	vi = &adp->va_info;
422
423	vid_init_struct(adp, "am335x_syscons", -1, unit);
424
425	sc->font = dflt_font_16;
426	vi->vi_cheight = AM335X_FONT_HEIGHT;
427	vi->vi_cwidth = 8;
428
429	vi->vi_width = sc->width/8;
430	vi->vi_height = sc->height/vi->vi_cheight;
431
432	/*
433	 * Clamp width/height to syscons maximums
434	 */
435	if (vi->vi_width > COL)
436		vi->vi_width = COL;
437	if (vi->vi_height > ROW)
438		vi->vi_height = ROW;
439
440	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
441	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
442
443
444	adp->va_window = (vm_offset_t) am335x_syscons_static_window;
445	adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
446
447	vid_register(&sc->va);
448
449	return (0);
450}
451
452static int
453am335x_syscons_get_info(video_adapter_t *adp, int mode, video_info_t *info)
454{
455	bcopy(&adp->va_info, info, sizeof(*info));
456	return (0);
457}
458
459static int
460am335x_syscons_query_mode(video_adapter_t *adp, video_info_t *info)
461{
462	return (0);
463}
464
465static int
466am335x_syscons_set_mode(video_adapter_t *adp, int mode)
467{
468	return (0);
469}
470
471static int
472am335x_syscons_save_font(video_adapter_t *adp, int page, int size, int width,
473    u_char *data, int c, int count)
474{
475	return (0);
476}
477
478static int
479am335x_syscons_load_font(video_adapter_t *adp, int page, int size, int width,
480    u_char *data, int c, int count)
481{
482	struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
483
484	sc->font = data;
485
486	return (0);
487}
488
489static int
490am335x_syscons_show_font(video_adapter_t *adp, int page)
491{
492	return (0);
493}
494
495static int
496am335x_syscons_save_palette(video_adapter_t *adp, u_char *palette)
497{
498	return (0);
499}
500
501static int
502am335x_syscons_load_palette(video_adapter_t *adp, u_char *palette)
503{
504	return (0);
505}
506
507static int
508am335x_syscons_set_border(video_adapter_t *adp, int border)
509{
510	return (am335x_syscons_blank_display(adp, border));
511}
512
513static int
514am335x_syscons_save_state(video_adapter_t *adp, void *p, size_t size)
515{
516	return (0);
517}
518
519static int
520am335x_syscons_load_state(video_adapter_t *adp, void *p)
521{
522	return (0);
523}
524
525static int
526am335x_syscons_set_win_org(video_adapter_t *adp, off_t offset)
527{
528	return (0);
529}
530
531static int
532am335x_syscons_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
533{
534	*col = *row = 0;
535
536	return (0);
537}
538
539static int
540am335x_syscons_set_hw_cursor(video_adapter_t *adp, int col, int row)
541{
542	return (0);
543}
544
545static int
546am335x_syscons_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
547    int celsize, int blink)
548{
549	return (0);
550}
551
552static int
553am335x_syscons_blank_display(video_adapter_t *adp, int mode)
554{
555
556	struct video_adapter_softc *sc;
557
558	sc = (struct video_adapter_softc *)adp;
559	if (sc && sc->fb_addr)
560		memset((void*)sc->fb_addr, 0, sc->fb_size);
561
562	return (0);
563}
564
565static int
566am335x_syscons_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
567    int prot, vm_memattr_t *memattr)
568{
569	struct video_adapter_softc *sc;
570
571	sc = (struct video_adapter_softc *)adp;
572
573	/*
574	 * This might be a legacy VGA mem request: if so, just point it at the
575	 * framebuffer, since it shouldn't be touched
576	 */
577	if (offset < sc->stride*sc->height) {
578		*paddr = sc->fb_paddr + offset;
579		return (0);
580	}
581
582	return (EINVAL);
583}
584
585static int
586am335x_syscons_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
587{
588	struct video_adapter_softc *sc;
589	struct fbtype *fb;
590
591	sc = (struct video_adapter_softc *)adp;
592
593	switch (cmd) {
594	case FBIOGTYPE:
595		fb = (struct fbtype *)data;
596		fb->fb_type = FBTYPE_PCIMISC;
597		fb->fb_height = sc->height;
598		fb->fb_width = sc->width;
599		fb->fb_depth = sc->depth;
600		if (sc->depth <= 1 || sc->depth > 8)
601			fb->fb_cmsize = 0;
602		else
603			fb->fb_cmsize = 1 << sc->depth;
604		fb->fb_size = sc->fb_size;
605		break;
606	default:
607		return (fb_commonioctl(adp, cmd, data));
608	}
609
610	return (0);
611}
612
613static int
614am335x_syscons_clear(video_adapter_t *adp)
615{
616
617	return (am335x_syscons_blank_display(adp, 0));
618}
619
620static int
621am335x_syscons_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
622{
623
624	return (0);
625}
626
627static int
628am335x_syscons_bitblt(video_adapter_t *adp, ...)
629{
630
631	return (0);
632}
633
634static int
635am335x_syscons_diag(video_adapter_t *adp, int level)
636{
637
638	return (0);
639}
640
641static int
642am335x_syscons_save_cursor_palette(video_adapter_t *adp, u_char *palette)
643{
644
645	return (0);
646}
647
648static int
649am335x_syscons_load_cursor_palette(video_adapter_t *adp, u_char *palette)
650{
651
652	return (0);
653}
654
655static int
656am335x_syscons_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
657{
658
659	return (0);
660}
661
662static int
663am335x_syscons_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
664    int size, int bpp, int bit_ltor, int byte_ltor)
665{
666
667	return (0);
668}
669
670static int
671am335x_syscons_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
672{
673	struct video_adapter_softc *sc;
674	int row;
675	int col;
676	int i, j, k;
677	uint8_t *addr;
678	u_char *p;
679	uint8_t fg, bg, color;
680	uint16_t rgb;
681
682	sc = (struct video_adapter_softc *)adp;
683
684	if (sc->fb_addr == 0)
685		return (0);
686
687	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
688	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
689	p = sc->font + c*AM335X_FONT_HEIGHT;
690	addr = (uint8_t *)sc->fb_addr
691	    + (row + sc->ymargin)*(sc->stride)
692	    + (sc->depth/8) * (col + sc->xmargin);
693
694	fg = a & 0xf ;
695	bg = (a >> 4) & 0xf;
696
697	for (i = 0; i < AM335X_FONT_HEIGHT; i++) {
698		for (j = 0, k = 7; j < 8; j++, k--) {
699			if ((p[i] & (1 << k)) == 0)
700				color = bg;
701			else
702				color = fg;
703
704			switch (sc->depth) {
705			case 32:
706				addr[4*j+0] = am335x_syscons_palette[color].r;
707				addr[4*j+1] = am335x_syscons_palette[color].g;
708				addr[4*j+2] = am335x_syscons_palette[color].b;
709				addr[4*j+3] = am335x_syscons_palette[color].a;
710				break;
711			case 24:
712				addr[3*j] = am335x_syscons_palette[color].r;
713				addr[3*j+1] = am335x_syscons_palette[color].g;
714				addr[3*j+2] = am335x_syscons_palette[color].b;
715				break;
716			case 16:
717				rgb = (am335x_syscons_palette[color].r >> 3) << 11;
718				rgb |= (am335x_syscons_palette[color].g >> 2) << 5;
719				rgb |= (am335x_syscons_palette[color].b >> 3);
720				addr[2*j] = rgb & 0xff;
721				addr[2*j + 1] = (rgb >> 8) & 0xff;
722			default:
723				/* Not supported yet */
724				break;
725			}
726		}
727
728		addr += (sc->stride);
729	}
730
731        return (0);
732}
733
734static int
735am335x_syscons_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
736{
737	int i;
738
739	for (i = 0; i < len; i++)
740		am335x_syscons_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
741
742	return (0);
743}
744
745static int
746am335x_syscons_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
747    uint32_t pixel_mask, int size, int width)
748{
749
750	return (0);
751}
752
753/* Initialization function */
754int am335x_lcd_syscons_setup(vm_offset_t vaddr, vm_paddr_t paddr,
755    struct panel_info *panel)
756{
757	struct video_adapter_softc *va_sc = &va_softc;
758
759	va_sc->fb_addr = vaddr;
760	va_sc->fb_paddr = paddr;
761	va_sc->depth = panel->bpp;
762	va_sc->stride = panel->bpp*panel->panel_width/8;
763
764	va_sc->width = panel->panel_width;
765	va_sc->height = panel->panel_height;
766	va_sc->fb_size = va_sc->width * va_sc->height
767	    * va_sc->depth/8;
768	am335x_syscons_update_margins(&va_sc->va);
769
770	return (0);
771}
772