versatile_clcd.c revision 302408
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/versatile/versatile_clcd.c 281085 2015-04-04 21:34:26Z andrew $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/kernel.h>
34#include <sys/module.h>
35#include <sys/malloc.h>
36#include <sys/rman.h>
37#include <sys/fbio.h>
38#include <sys/consio.h>
39#include <sys/kdb.h>
40
41#include <machine/bus.h>
42#include <machine/cpu.h>
43#include <machine/intr.h>
44
45#include <dev/fdt/fdt_common.h>
46#include <dev/ofw/openfirm.h>
47#include <dev/ofw/ofw_bus.h>
48#include <dev/ofw/ofw_bus_subr.h>
49
50#include <dev/fb/fbreg.h>
51#include <dev/syscons/syscons.h>
52
53#include <machine/bus.h>
54
55#define	PL110_VENDOR_ARM926PXP	1
56
57#define	MEM_SYS		0
58#define	MEM_CLCD	1
59#define MEM_REGIONS	2
60
61#define	SYS_CLCD		0x00
62#define		SYS_CLCD_CLCDID_SHIFT	0x08
63#define		SYS_CLCD_CLCDID_MASK	0x1f
64#define		SYS_CLCD_PWR3V5VSWITCH	(1 << 4)
65#define		SYS_CLCD_VDDPOSSWITCH 	(1 << 3)
66#define		SYS_CLCD_NLCDIOON  	(1 << 2)
67#define		SYS_CLCD_LCD_MODE_MASK	0x03
68
69#define	CLCD_MODE_RGB888	0x0
70#define	CLCD_MODE_RGB555	0x01
71#define	CLCD_MODE_RBG565	0x02
72#define	CLCD_MODE_RGB565	0x03
73
74#define	CLCDC_TIMING0		0x00
75#define	CLCDC_TIMING1		0x04
76#define	CLCDC_TIMING2		0x08
77#define	CLCDC_TIMING3		0x0C
78#define	CLCDC_TIMING3		0x0C
79#define	CLCDC_UPBASE		0x10
80#define	CLCDC_LPBASE		0x14
81#ifdef PL110_VENDOR_ARM926PXP
82#define	CLCDC_CONTROL		0x18
83#define	CLCDC_IMSC		0x1C
84#else
85#define	CLCDC_IMSC		0x18
86#define	CLCDC_CONTROL		0x1C
87#endif
88#define		CONTROL_WATERMARK	(1 << 16)
89#define		CONTROL_VCOMP_VS	(0 << 12)
90#define		CONTROL_VCOMP_BP	(1 << 12)
91#define		CONTROL_VCOMP_SAV	(2 << 12)
92#define		CONTROL_VCOMP_FP	(3 << 12)
93#define		CONTROL_PWR		(1 << 11)
94#define		CONTROL_BEPO		(1 << 10)
95#define		CONTROL_BEBO		(1 << 9)
96#define		CONTROL_BGR		(1 << 8)
97#define		CONTROL_DUAL		(1 << 7)
98#define		CONTROL_MONO8		(1 << 6)
99#define		CONTROL_TFT		(1 << 5)
100#define		CONTROL_BW		(1 << 4)
101#define		CONTROL_BPP1		(0x00 << 1)
102#define		CONTROL_BPP2		(0x01 << 1)
103#define		CONTROL_BPP4		(0x02 << 1)
104#define		CONTROL_BPP8		(0x03 << 1)
105#define		CONTROL_BPP16		(0x04 << 1)
106#define		CONTROL_BPP24		(0x05 << 1)
107#define		CONTROL_EN	(1 << 0)
108#define	CLCDC_RIS		0x20
109#define	CLCDC_MIS		0x24
110#define		INTR_MBERR		(1 << 4)
111#define		INTR_VCOMP		(1 << 3)
112#define		INTR_LNB		(1 << 2)
113#define		INTR_FUF		(1 << 1)
114#define	CLCDC_ICR		0x28
115
116#ifdef DEBUG
117#define dprintf(fmt, args...) do { printf("%s(): ", __func__);   \
118    printf(fmt,##args); } while (0)
119#else
120#define dprintf(fmt, args...)
121#endif
122
123#define	versatile_clcdc_sys_read_4(sc, reg)	\
124	bus_read_4((sc)->mem_res[MEM_SYS], (reg))
125#define	versatile_clcdc_sys_write_4(sc, reg, val)	\
126	bus_write_4((sc)->mem_res[MEM_SYS], (reg), (val))
127
128#define	versatile_clcdc_read_4(sc, reg)	\
129	bus_read_4((sc)->mem_res[MEM_CLCD], (reg))
130#define	versatile_clcdc_write_4(sc, reg, val)	\
131	bus_write_4((sc)->mem_res[MEM_CLCD], (reg), (val))
132
133struct versatile_clcdc_softc {
134	struct resource*	mem_res[MEM_REGIONS];
135
136	struct mtx		mtx;
137
138	int			width;
139	int			height;
140	int			mode;
141
142	bus_dma_tag_t		dma_tag;
143	bus_dmamap_t		dma_map;
144	bus_addr_t		fb_phys;
145	uint8_t			*fb_base;
146
147};
148
149struct video_adapter_softc {
150	/* Videoadpater part */
151	video_adapter_t	va;
152	int		console;
153
154	intptr_t	fb_addr;
155	unsigned int	fb_size;
156
157	unsigned int	height;
158	unsigned int	width;
159	unsigned int	depth;
160	unsigned int	stride;
161
162	unsigned int	xmargin;
163	unsigned int	ymargin;
164
165	unsigned char	*font;
166	int		initialized;
167};
168
169struct argb {
170	uint8_t		a;
171	uint8_t		r;
172	uint8_t		g;
173	uint8_t		b;
174};
175
176static struct argb versatilefb_palette[16] = {
177	{0x00, 0x00, 0x00, 0x00},
178	{0x00, 0x00, 0x00, 0xaa},
179	{0x00, 0x00, 0xaa, 0x00},
180	{0x00, 0x00, 0xaa, 0xaa},
181	{0x00, 0xaa, 0x00, 0x00},
182	{0x00, 0xaa, 0x00, 0xaa},
183	{0x00, 0xaa, 0x55, 0x00},
184	{0x00, 0xaa, 0xaa, 0xaa},
185	{0x00, 0x55, 0x55, 0x55},
186	{0x00, 0x55, 0x55, 0xff},
187	{0x00, 0x55, 0xff, 0x55},
188	{0x00, 0x55, 0xff, 0xff},
189	{0x00, 0xff, 0x55, 0x55},
190	{0x00, 0xff, 0x55, 0xff},
191	{0x00, 0xff, 0xff, 0x55},
192	{0x00, 0xff, 0xff, 0xff}
193};
194
195/* mouse pointer from dev/syscons/scgfbrndr.c */
196static u_char mouse_pointer[16] = {
197        0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
198        0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
199};
200
201#define FB_WIDTH		640
202#define FB_HEIGHT		480
203#define FB_DEPTH		16
204
205#define	VERSATILE_FONT_HEIGHT	16
206
207static struct video_adapter_softc va_softc;
208
209static struct resource_spec versatile_clcdc_mem_spec[] = {
210	{ SYS_RES_MEMORY, 0, RF_ACTIVE },
211	{ SYS_RES_MEMORY, 1, RF_ACTIVE },
212	{ -1, 0, 0 }
213};
214
215static int versatilefb_configure(int);
216static void versatilefb_update_margins(video_adapter_t *adp);
217
218static void
219versatile_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err)
220{
221	bus_addr_t *addr;
222
223	if (err)
224		return;
225
226	addr = (bus_addr_t*)arg;
227	*addr = segs[0].ds_addr;
228}
229
230static int
231versatile_clcdc_probe(device_t dev)
232{
233
234	if (!ofw_bus_status_okay(dev))
235		return (ENXIO);
236
237	if (ofw_bus_is_compatible(dev, "arm,pl110")) {
238		device_set_desc(dev, "PL110 CLCD controller");
239		return (BUS_PROBE_DEFAULT);
240	}
241
242	return (ENXIO);
243}
244
245static int
246versatile_clcdc_attach(device_t dev)
247{
248	struct versatile_clcdc_softc *sc = device_get_softc(dev);
249	struct video_adapter_softc *va_sc = &va_softc;
250	int err;
251	uint32_t reg;
252	int clcdid;
253	int dma_size;
254
255	/* Request memory resources */
256	err = bus_alloc_resources(dev, versatile_clcdc_mem_spec,
257		sc->mem_res);
258	if (err) {
259		device_printf(dev, "Error: could not allocate memory resources\n");
260		return (ENXIO);
261	}
262
263	reg = versatile_clcdc_sys_read_4(sc, SYS_CLCD);
264	clcdid = (reg >> SYS_CLCD_CLCDID_SHIFT) & SYS_CLCD_CLCDID_MASK;
265	switch (clcdid) {
266		case 31:
267			device_printf(dev, "QEMU VGA 640x480\n");
268			sc->width = 640;
269			sc->height = 480;
270			break;
271		default:
272			device_printf(dev, "Unsupported: %d\n", clcdid);
273			goto fail;
274	}
275
276	reg &= ~SYS_CLCD_LCD_MODE_MASK;
277	reg |= CLCD_MODE_RGB565;
278	sc->mode = CLCD_MODE_RGB565;
279	versatile_clcdc_sys_write_4(sc, SYS_CLCD, reg);
280	dma_size = sc->width*sc->height*2;
281
282	/*
283	 * Power on LCD
284	 */
285	reg |= SYS_CLCD_PWR3V5VSWITCH | SYS_CLCD_NLCDIOON;
286	versatile_clcdc_sys_write_4(sc, SYS_CLCD, reg);
287
288	/*
289	 * XXX: hardcoded timing for VGA. For other modes/panels
290	 * we need to keep table of timing register values
291	 */
292	/*
293	 * XXX: set SYS_OSC1
294	 */
295	versatile_clcdc_write_4(sc, CLCDC_TIMING0, 0x3F1F3F9C);
296	versatile_clcdc_write_4(sc, CLCDC_TIMING1, 0x090B61DF);
297	versatile_clcdc_write_4(sc, CLCDC_TIMING2, 0x067F1800);
298	/* XXX: timing 3? */
299
300	/*
301	 * Now allocate framebuffer memory
302	 */
303	err = bus_dma_tag_create(
304	    bus_get_dma_tag(dev),
305	    4, 0,		/* alignment, boundary */
306	    BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
307	    BUS_SPACE_MAXADDR,		/* highaddr */
308	    NULL, NULL,			/* filter, filterarg */
309	    dma_size, 1,		/* maxsize, nsegments */
310	    dma_size, 0,		/* maxsegsize, flags */
311	    NULL, NULL,			/* lockfunc, lockarg */
312	    &sc->dma_tag);
313
314	err = bus_dmamem_alloc(sc->dma_tag, (void **)&sc->fb_base,
315	    0, &sc->dma_map);
316	if (err) {
317		device_printf(dev, "cannot allocate framebuffer\n");
318		goto fail;
319	}
320
321	err = bus_dmamap_load(sc->dma_tag, sc->dma_map, sc->fb_base,
322	    dma_size, versatile_fb_dmamap_cb, &sc->fb_phys, BUS_DMA_NOWAIT);
323
324	if (err) {
325		device_printf(dev, "cannot load DMA map\n");
326		goto fail;
327	}
328
329	/* Make sure it's blank */
330	memset(sc->fb_base, 0x00, dma_size);
331
332	versatile_clcdc_write_4(sc, CLCDC_UPBASE, sc->fb_phys);
333
334	err = (sc_attach_unit(device_get_unit(dev),
335	    device_get_flags(dev) | SC_AUTODETECT_KBD));
336
337	if (err) {
338		device_printf(dev, "failed to attach syscons\n");
339		goto fail;
340	}
341
342	/*
343	 * XXX: hardcoded for VGA
344	 */
345	reg = CONTROL_VCOMP_BP | CONTROL_TFT | CONTROL_BGR | CONTROL_EN;
346	reg |= CONTROL_BPP16;
347	versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
348	DELAY(20);
349	reg |= CONTROL_PWR;
350	versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
351
352	va_sc->fb_addr = (vm_offset_t)sc->fb_base;
353	va_sc->fb_size = dma_size;
354	va_sc->width = sc->width;
355	va_sc->height = sc->height;
356	va_sc->depth = 16;
357	va_sc->stride = sc->width * 2;
358	versatilefb_update_margins(&va_sc->va);
359
360	return (0);
361
362fail:
363	if (sc->fb_base)
364		bus_dmamem_free(sc->dma_tag, sc->fb_base, sc->dma_map);
365	if (sc->dma_tag)
366		bus_dma_tag_destroy(sc->dma_tag);
367	return (err);
368}
369
370static device_method_t versatile_clcdc_methods[] = {
371	DEVMETHOD(device_probe,		versatile_clcdc_probe),
372	DEVMETHOD(device_attach,	versatile_clcdc_attach),
373
374	DEVMETHOD_END
375};
376
377static driver_t versatile_clcdc_driver = {
378	"clcdc",
379	versatile_clcdc_methods,
380	sizeof(struct versatile_clcdc_softc),
381};
382
383static devclass_t versatile_clcdc_devclass;
384
385DRIVER_MODULE(versatile_clcdc, simplebus, versatile_clcdc_driver, versatile_clcdc_devclass, 0, 0);
386
387/*
388 * Video driver routines and glue.
389 */
390static vi_probe_t		versatilefb_probe;
391static vi_init_t		versatilefb_init;
392static vi_get_info_t		versatilefb_get_info;
393static vi_query_mode_t		versatilefb_query_mode;
394static vi_set_mode_t		versatilefb_set_mode;
395static vi_save_font_t		versatilefb_save_font;
396static vi_load_font_t		versatilefb_load_font;
397static vi_show_font_t		versatilefb_show_font;
398static vi_save_palette_t	versatilefb_save_palette;
399static vi_load_palette_t	versatilefb_load_palette;
400static vi_set_border_t		versatilefb_set_border;
401static vi_save_state_t		versatilefb_save_state;
402static vi_load_state_t		versatilefb_load_state;
403static vi_set_win_org_t		versatilefb_set_win_org;
404static vi_read_hw_cursor_t	versatilefb_read_hw_cursor;
405static vi_set_hw_cursor_t	versatilefb_set_hw_cursor;
406static vi_set_hw_cursor_shape_t	versatilefb_set_hw_cursor_shape;
407static vi_blank_display_t	versatilefb_blank_display;
408static vi_mmap_t		versatilefb_mmap;
409static vi_ioctl_t		versatilefb_ioctl;
410static vi_clear_t		versatilefb_clear;
411static vi_fill_rect_t		versatilefb_fill_rect;
412static vi_bitblt_t		versatilefb_bitblt;
413static vi_diag_t		versatilefb_diag;
414static vi_save_cursor_palette_t	versatilefb_save_cursor_palette;
415static vi_load_cursor_palette_t	versatilefb_load_cursor_palette;
416static vi_copy_t		versatilefb_copy;
417static vi_putp_t		versatilefb_putp;
418static vi_putc_t		versatilefb_putc;
419static vi_puts_t		versatilefb_puts;
420static vi_putm_t		versatilefb_putm;
421
422static video_switch_t versatilefbvidsw = {
423	.probe			= versatilefb_probe,
424	.init			= versatilefb_init,
425	.get_info		= versatilefb_get_info,
426	.query_mode		= versatilefb_query_mode,
427	.set_mode		= versatilefb_set_mode,
428	.save_font		= versatilefb_save_font,
429	.load_font		= versatilefb_load_font,
430	.show_font		= versatilefb_show_font,
431	.save_palette		= versatilefb_save_palette,
432	.load_palette		= versatilefb_load_palette,
433	.set_border		= versatilefb_set_border,
434	.save_state		= versatilefb_save_state,
435	.load_state		= versatilefb_load_state,
436	.set_win_org		= versatilefb_set_win_org,
437	.read_hw_cursor		= versatilefb_read_hw_cursor,
438	.set_hw_cursor		= versatilefb_set_hw_cursor,
439	.set_hw_cursor_shape	= versatilefb_set_hw_cursor_shape,
440	.blank_display		= versatilefb_blank_display,
441	.mmap			= versatilefb_mmap,
442	.ioctl			= versatilefb_ioctl,
443	.clear			= versatilefb_clear,
444	.fill_rect		= versatilefb_fill_rect,
445	.bitblt			= versatilefb_bitblt,
446	.diag			= versatilefb_diag,
447	.save_cursor_palette	= versatilefb_save_cursor_palette,
448	.load_cursor_palette	= versatilefb_load_cursor_palette,
449	.copy			= versatilefb_copy,
450	.putp			= versatilefb_putp,
451	.putc			= versatilefb_putc,
452	.puts			= versatilefb_puts,
453	.putm			= versatilefb_putm,
454};
455
456VIDEO_DRIVER(versatilefb, versatilefbvidsw, versatilefb_configure);
457
458static vr_init_t clcdr_init;
459static vr_clear_t clcdr_clear;
460static vr_draw_border_t clcdr_draw_border;
461static vr_draw_t clcdr_draw;
462static vr_set_cursor_t clcdr_set_cursor;
463static vr_draw_cursor_t clcdr_draw_cursor;
464static vr_blink_cursor_t clcdr_blink_cursor;
465static vr_set_mouse_t clcdr_set_mouse;
466static vr_draw_mouse_t clcdr_draw_mouse;
467
468/*
469 * We use our own renderer; this is because we must emulate a hardware
470 * cursor.
471 */
472static sc_rndr_sw_t clcdrend = {
473	clcdr_init,
474	clcdr_clear,
475	clcdr_draw_border,
476	clcdr_draw,
477	clcdr_set_cursor,
478	clcdr_draw_cursor,
479	clcdr_blink_cursor,
480	clcdr_set_mouse,
481	clcdr_draw_mouse
482};
483
484RENDERER(versatilefb, 0, clcdrend, gfb_set);
485RENDERER_MODULE(versatilefb, gfb_set);
486
487static void
488clcdr_init(scr_stat* scp)
489{
490}
491
492static void
493clcdr_clear(scr_stat* scp, int c, int attr)
494{
495}
496
497static void
498clcdr_draw_border(scr_stat* scp, int color)
499{
500}
501
502static void
503clcdr_draw(scr_stat* scp, int from, int count, int flip)
504{
505	video_adapter_t* adp = scp->sc->adp;
506	int i, c, a;
507
508	if (!flip) {
509		/* Normal printing */
510		vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
511	} else {
512		/* This is for selections and such: invert the color attribute */
513		for (i = count; i-- > 0; ++from) {
514			c = sc_vtb_getc(&scp->vtb, from);
515			a = sc_vtb_geta(&scp->vtb, from) >> 8;
516			vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
517		}
518	}
519}
520
521static void
522clcdr_set_cursor(scr_stat* scp, int base, int height, int blink)
523{
524}
525
526static void
527clcdr_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
528{
529	video_adapter_t* adp = scp->sc->adp;
530	struct video_adapter_softc *sc;
531	int row, col;
532	uint8_t *addr;
533	int i,j;
534
535	sc = (struct video_adapter_softc *)adp;
536
537	if (scp->curs_attr.height <= 0)
538		return;
539
540	if (sc->fb_addr == 0)
541		return;
542
543	if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
544		return;
545
546	/* calculate the coordinates in the video buffer */
547	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
548	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
549
550	addr = (uint8_t *)sc->fb_addr
551	    + (row + sc->ymargin)*(sc->stride)
552	    + (sc->depth/8) * (col + sc->xmargin);
553
554	/* our cursor consists of simply inverting the char under it */
555	for (i = 0; i < adp->va_info.vi_cheight; i++) {
556		for (j = 0; j < adp->va_info.vi_cwidth; j++) {
557
558			addr[2*j] ^= 0xff;
559			addr[2*j + 1] ^= 0xff;
560		}
561
562		addr += sc->stride;
563	}
564}
565
566static void
567clcdr_blink_cursor(scr_stat* scp, int at, int flip)
568{
569}
570
571static void
572clcdr_set_mouse(scr_stat* scp)
573{
574}
575
576static void
577clcdr_draw_mouse(scr_stat* scp, int x, int y, int on)
578{
579	vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
580
581}
582
583static uint16_t versatilefb_static_window[ROW*COL];
584extern u_char dflt_font_16[];
585
586/*
587 * Update videoadapter settings after changing resolution
588 */
589static void
590versatilefb_update_margins(video_adapter_t *adp)
591{
592	struct video_adapter_softc *sc;
593	video_info_t *vi;
594
595	sc = (struct video_adapter_softc *)adp;
596	vi = &adp->va_info;
597
598	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
599	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
600}
601
602static int
603versatilefb_configure(int flags)
604{
605	struct video_adapter_softc *va_sc;
606
607	va_sc = &va_softc;
608
609	if (va_sc->initialized)
610		return (0);
611
612	va_sc->width = FB_WIDTH;
613	va_sc->height = FB_HEIGHT;
614	va_sc->depth = FB_DEPTH;
615
616	versatilefb_init(0, &va_sc->va, 0);
617
618	va_sc->initialized = 1;
619
620	return (0);
621}
622
623static int
624versatilefb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
625{
626
627	return (0);
628}
629
630static int
631versatilefb_init(int unit, video_adapter_t *adp, int flags)
632{
633	struct video_adapter_softc *sc;
634	video_info_t *vi;
635
636	sc = (struct video_adapter_softc *)adp;
637	vi = &adp->va_info;
638
639	vid_init_struct(adp, "versatilefb", -1, unit);
640
641	sc->font = dflt_font_16;
642	vi->vi_cheight = VERSATILE_FONT_HEIGHT;
643	vi->vi_cwidth = 8;
644
645	vi->vi_width = sc->width/8;
646	vi->vi_height = sc->height/vi->vi_cheight;
647
648	/*
649	 * Clamp width/height to syscons maximums
650	 */
651	if (vi->vi_width > COL)
652		vi->vi_width = COL;
653	if (vi->vi_height > ROW)
654		vi->vi_height = ROW;
655
656	sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
657	sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
658
659
660	adp->va_window = (vm_offset_t) versatilefb_static_window;
661	adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
662
663	vid_register(&sc->va);
664
665	return (0);
666}
667
668static int
669versatilefb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
670{
671	bcopy(&adp->va_info, info, sizeof(*info));
672	return (0);
673}
674
675static int
676versatilefb_query_mode(video_adapter_t *adp, video_info_t *info)
677{
678	return (0);
679}
680
681static int
682versatilefb_set_mode(video_adapter_t *adp, int mode)
683{
684	return (0);
685}
686
687static int
688versatilefb_save_font(video_adapter_t *adp, int page, int size, int width,
689    u_char *data, int c, int count)
690{
691	return (0);
692}
693
694static int
695versatilefb_load_font(video_adapter_t *adp, int page, int size, int width,
696    u_char *data, int c, int count)
697{
698	struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
699
700	sc->font = data;
701
702	return (0);
703}
704
705static int
706versatilefb_show_font(video_adapter_t *adp, int page)
707{
708	return (0);
709}
710
711static int
712versatilefb_save_palette(video_adapter_t *adp, u_char *palette)
713{
714	return (0);
715}
716
717static int
718versatilefb_load_palette(video_adapter_t *adp, u_char *palette)
719{
720	return (0);
721}
722
723static int
724versatilefb_set_border(video_adapter_t *adp, int border)
725{
726	return (versatilefb_blank_display(adp, border));
727}
728
729static int
730versatilefb_save_state(video_adapter_t *adp, void *p, size_t size)
731{
732	return (0);
733}
734
735static int
736versatilefb_load_state(video_adapter_t *adp, void *p)
737{
738	return (0);
739}
740
741static int
742versatilefb_set_win_org(video_adapter_t *adp, off_t offset)
743{
744	return (0);
745}
746
747static int
748versatilefb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
749{
750	*col = *row = 0;
751
752	return (0);
753}
754
755static int
756versatilefb_set_hw_cursor(video_adapter_t *adp, int col, int row)
757{
758
759	return (0);
760}
761
762static int
763versatilefb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
764    int celsize, int blink)
765{
766	return (0);
767}
768
769static int
770versatilefb_blank_display(video_adapter_t *adp, int mode)
771{
772
773	struct video_adapter_softc *sc;
774
775	sc = (struct video_adapter_softc *)adp;
776	if (sc && sc->fb_addr)
777		memset((void*)sc->fb_addr, 0, sc->fb_size);
778
779	return (0);
780}
781
782static int
783versatilefb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
784    int prot, vm_memattr_t *memattr)
785{
786	struct video_adapter_softc *sc;
787
788	sc = (struct video_adapter_softc *)adp;
789
790	/*
791	 * This might be a legacy VGA mem request: if so, just point it at the
792	 * framebuffer, since it shouldn't be touched
793	 */
794	if (offset < sc->stride*sc->height) {
795		*paddr = sc->fb_addr + offset;
796		return (0);
797	}
798
799	return (EINVAL);
800}
801
802static int
803versatilefb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
804{
805
806	return (0);
807}
808
809static int
810versatilefb_clear(video_adapter_t *adp)
811{
812
813	return (versatilefb_blank_display(adp, 0));
814}
815
816static int
817versatilefb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
818{
819
820	return (0);
821}
822
823static int
824versatilefb_bitblt(video_adapter_t *adp, ...)
825{
826
827	return (0);
828}
829
830static int
831versatilefb_diag(video_adapter_t *adp, int level)
832{
833
834	return (0);
835}
836
837static int
838versatilefb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
839{
840
841	return (0);
842}
843
844static int
845versatilefb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
846{
847
848	return (0);
849}
850
851static int
852versatilefb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
853{
854
855	return (0);
856}
857
858static int
859versatilefb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
860    int size, int bpp, int bit_ltor, int byte_ltor)
861{
862
863	return (0);
864}
865
866static int
867versatilefb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
868{
869	struct video_adapter_softc *sc;
870	int row;
871	int col;
872	int i, j, k;
873	uint8_t *addr;
874	u_char *p;
875	uint8_t fg, bg, color;
876	uint16_t rgb;
877
878	sc = (struct video_adapter_softc *)adp;
879
880	if (sc->fb_addr == 0)
881		return (0);
882
883	if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
884		return (0);
885
886	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
887	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
888	p = sc->font + c*VERSATILE_FONT_HEIGHT;
889	addr = (uint8_t *)sc->fb_addr
890	    + (row + sc->ymargin)*(sc->stride)
891	    + (sc->depth/8) * (col + sc->xmargin);
892
893	fg = a & 0xf ;
894	bg = (a >> 4) & 0xf;
895
896	for (i = 0; i < VERSATILE_FONT_HEIGHT; i++) {
897		for (j = 0, k = 7; j < 8; j++, k--) {
898			if ((p[i] & (1 << k)) == 0)
899				color = bg;
900			else
901				color = fg;
902
903			switch (sc->depth) {
904			case 16:
905				rgb = (versatilefb_palette[color].r >> 3) << 11;
906				rgb |= (versatilefb_palette[color].g >> 2) << 5;
907				rgb |= (versatilefb_palette[color].b >> 3);
908				addr[2*j] = rgb & 0xff;
909				addr[2*j + 1] = (rgb >> 8) & 0xff;
910			default:
911				/* Not supported yet */
912				break;
913			}
914		}
915
916		addr += (sc->stride);
917	}
918
919        return (0);
920}
921
922static int
923versatilefb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
924{
925	int i;
926
927	for (i = 0; i < len; i++)
928		versatilefb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
929
930	return (0);
931}
932
933static int
934versatilefb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
935    uint32_t pixel_mask, int size, int width)
936{
937
938	return (0);
939}
940
941/*
942 * Define a stub keyboard driver in case one hasn't been
943 * compiled into the kernel
944 */
945#include <sys/kbio.h>
946#include <dev/kbd/kbdreg.h>
947
948static int dummy_kbd_configure(int flags);
949
950keyboard_switch_t bcmdummysw;
951
952static int
953dummy_kbd_configure(int flags)
954{
955
956	return (0);
957}
958KEYBOARD_DRIVER(bcmdummy, bcmdummysw, dummy_kbd_configure);
959