xref: /netbsd/sys/arch/dreamcast/dev/pvr.c (revision bf9ec67e)
1 /*	$NetBSD: pvr.c,v 1.12 2002/05/03 04:42:08 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 2001 Marcus Comstedt.
5  * Copyright (c) 2001 Jason R. Thorpe.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by Marcus Comstedt.
19  * 4. Neither the name of The NetBSD Foundation nor the names of its
20  *    contributors may be used to endorse or promote products derived
21  *    from this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33  * POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 /*
37  * Copyright (c) 1998, 1999 Tohru Nishimura.  All rights reserved.
38  *
39  * Redistribution and use in source and binary forms, with or without
40  * modification, are permitted provided that the following conditions
41  * are met:
42  * 1. Redistributions of source code must retain the above copyright
43  *    notice, this list of conditions and the following disclaimer.
44  * 2. Redistributions in binary form must reproduce the above copyright
45  *    notice, this list of conditions and the following disclaimer in the
46  *    documentation and/or other materials provided with the distribution.
47  * 3. All advertising materials mentioning features or use of this software
48  *    must display the following acknowledgement:
49  *      This product includes software developed by Tohru Nishimura
50  *	for the NetBSD Project.
51  * 4. The name of the author may not be used to endorse or promote products
52  *    derived from this software without specific prior written permission
53  *
54  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
55  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
56  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
57  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
58  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
59  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
63  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64  */
65 
66 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
67 
68 __KERNEL_RCSID(0, "$NetBSD: pvr.c,v 1.12 2002/05/03 04:42:08 thorpej Exp $");
69 
70 #include <sys/param.h>
71 #include <sys/systm.h>
72 #include <sys/kernel.h>
73 #include <sys/device.h>
74 #include <sys/malloc.h>
75 #include <sys/buf.h>
76 #include <sys/ioctl.h>
77 
78 #include <machine/vmparam.h>
79 #include <machine/cpu.h>
80 #include <machine/bus.h>
81 
82 #include <dev/cons.h>
83 
84 #include <dev/wscons/wsconsio.h>
85 #include <dev/wscons/wsdisplayvar.h>
86 
87 #include <dev/wscons/wscons_callbacks.h>
88 
89 #include <dev/rasops/rasops.h>
90 #include <dev/wsfont/wsfont.h>
91 
92 #include <dreamcast/dev/pvrvar.h>
93 #include <dreamcast/dev/maple/mkbdvar.h>
94 
95 #include "mkbd.h"
96 
97 #define	PVRREG_FBSTART		0x05000000
98 #define	PVRREG_REGSTART		0x005f8000
99 
100 #define	PVRREG_BRDCOLR		0x40
101 #define	BRDCOLR_BLUE(x)		((x) << 0)
102 #define	BRDCOLR_GREEN(x)	((x) << 8)
103 #define	BRDCOLR_RED(x)		((x) << 16)
104 
105 #define	PVRREG_DIWMODE		0x44
106 #define	DIWMODE_DE		(1U << 0)	/* display enable */
107 #define	DIWMODE_SD		(1U << 1)	/* scan double enable */
108 #define	DIWMODE_COL(x)		((x) << 2)
109 #define	DIWMODE_COL_RGB555	DIWMODE_COL(0)	/* RGB555, 16-bit */
110 #define	DIWMODE_COL_RGB565	DIWMODE_COL(1)	/* RGB565, 16-bit */
111 #define	DIWMODE_COL_RGB888	DIWMODE_COL(2)	/* RGB888, 24-bit */
112 #define	DIWMODE_COL_ARGB888	DIWMODE_COL(3)	/* RGB888, 32-bit */
113 #define	DIWMODE_C		(1U << 23)	/* 2x clock enable (VGA) */
114 
115 #define	PVRREG_DIWADDRL		0x50
116 
117 #define	PVRREG_DIWADDRS		0x54
118 
119 #define	PVRREG_DIWSIZE		0x5c
120 #define	DIWSIZE_DPL(x)		((x) << 0)	/* pixel data per line */
121 #define	DIWSIZE_LPF(x)		((x) << 10)	/* lines per field */
122 #define	DIWSIZE_MODULO(x)	((x) << 20)	/* words to skip + 1 */
123 
124 #define	PVRREG_RASEVTPOS	0xcc
125 #define	RASEVTPOS_BOTTOM(x)	((x) << 0)
126 #define	RASEVTPOS_TOP(x)	((x) << 16)
127 
128 #define	PVRREG_SYNCCONF		0xd0
129 #define	SYNCCONF_VP		(1U << 0)	/* V-sync polarity */
130 #define	SYNCCONF_HP		(1U << 1)	/* H-sync polarity */
131 #define	SYNCCONF_I		(1U << 4)	/* interlace */
132 #define	SYNCCONF_BC(x)		(1U << 6)	/* broadcast standard */
133 #define	SYNCCONF_VO		(1U << 8)	/* video output enable */
134 
135 #define	PVRREG_BRDHORZ		0xd4
136 #define	BRDHORZ_STOP(x)		((x) << 0)
137 #define	BRDHORZ_START(x)	((x) << 16)
138 
139 #define	PVRREG_SYNCSIZE		0xd8
140 #define	SYNCSIZE_H(x)		((x) << 0)
141 #define	SYNCSIZE_V(x)		((x) << 16)
142 
143 #define	PVRREG_BRDVERT		0xdc
144 #define	BRDVERT_STOP(x)		((x) << 0)
145 #define	BRDVERT_START(x)	((x) << 16)
146 
147 #define	PVRREG_DIWCONF		0xe8
148 #define	DIWCONF_LR		(1U << 8)	/* low-res */
149 #define	DIWCONF_MAGIC		(22 << 16)
150 
151 #define	PVRREG_DIWHSTRT		0xec
152 
153 #define	PVRREG_DIWVSTRT		0xf0
154 #define	DIWVSTRT_V1(x)		((x) << 0)
155 #define	DIWVSTRT_V2(x)		((x) << 16)
156 
157 #define	PVR_REG_READ(dc, reg)						\
158 	((__volatile uint32_t *)(dc)->dc_regvaddr)[(reg) >> 2]
159 #define	PVR_REG_WRITE(dc, reg, val)					\
160 	((__volatile uint32_t *)(dc)->dc_regvaddr)[(reg) >> 2] = (val)
161 
162 struct fb_devconfig {
163 	vaddr_t dc_vaddr;		/* framebuffer virtual address */
164 	vaddr_t dc_paddr;		/* framebuffer physical address */
165 	vaddr_t dc_regvaddr;		/* registers virtual address */
166 	vaddr_t dc_regpaddr;		/* registers physical address */
167 	int	dc_wid;			/* width of frame buffer */
168 	int	dc_ht;			/* height of frame buffer */
169 	int	dc_depth;		/* depth, bits per pixel */
170 	int	dc_rowbytes;		/* bytes in a FB scan line */
171 	vaddr_t	dc_videobase;		/* base of flat frame buffer */
172 	int	dc_blanked;		/* currently has video disabled */
173 	int	dc_dispflags;		/* display flags */
174 	int	dc_tvsystem;		/* TV broadcast system */
175 
176 	struct rasops_info rinfo;
177 };
178 
179 #define	PVR_RGBMODE	0x01		/* RGB or composite */
180 #define	PVR_VGAMODE	0x02		/* VGA */
181 
182 struct pvr_softc {
183 	struct device sc_dev;
184 	struct fb_devconfig *sc_dc;	/* device configuration */
185 	int nscreens;
186 };
187 
188 int	pvr_match(struct device *, struct cfdata *, void *);
189 void	pvr_attach(struct device *, struct device *, void *);
190 
191 struct cfattach pvr_ca = {
192 	sizeof(struct pvr_softc), pvr_match, pvr_attach,
193 };
194 
195 void	pvr_getdevconfig(struct fb_devconfig *);
196 
197 struct fb_devconfig pvr_console_dc;
198 
199 char pvr_stdscreen_textgeom[32] = { "std" };	/* XXX yuck */
200 
201 struct wsscreen_descr pvr_stdscreen = {
202 	pvr_stdscreen_textgeom, 0, 0,
203 	0, /* textops */
204 	0, 0,
205 	WSSCREEN_WSCOLORS,
206 };
207 
208 const struct wsscreen_descr *_pvr_scrlist[] = {
209 	&pvr_stdscreen,
210 };
211 
212 const struct wsscreen_list pvr_screenlist = {
213 	sizeof(_pvr_scrlist) / sizeof(struct wsscreen_descr *), _pvr_scrlist
214 };
215 
216 int	pvrioctl(void *, u_long, caddr_t, int, struct proc *);
217 paddr_t	pvrmmap(void *, off_t, int);
218 
219 int	pvr_alloc_screen(void *, const struct wsscreen_descr *,
220 	    void **, int *, int *, long *);
221 void	pvr_free_screen(void *, void *);
222 int	pvr_show_screen(void *, void *, int,
223 	    void (*)(void *, int, int), void *);
224 
225 const struct wsdisplay_accessops pvr_accessops = {
226 	pvrioctl,
227 	pvrmmap,
228 	pvr_alloc_screen,
229 	pvr_free_screen,
230 	pvr_show_screen,
231 	NULL, /* load_font */
232 };
233 
234 void	pvrinit(struct fb_devconfig *);
235 
236 int	pvr_is_console;
237 
238 int
239 pvr_match(struct device *parent, struct cfdata *match, void *aux)
240 {
241 
242 	if (strcmp("pvr", match->cf_driver->cd_name) != 0)
243 		return (0);
244 
245 	return (1);
246 }
247 
248 void
249 pvr_getdevconfig(struct fb_devconfig *dc)
250 {
251 	int i, cookie;
252 
253 	dc->dc_paddr = PVRREG_FBSTART;
254 	dc->dc_vaddr = SH3_PHYS_TO_P2SEG(dc->dc_paddr);
255 
256 	dc->dc_regpaddr = PVRREG_REGSTART;
257 	dc->dc_regvaddr = SH3_PHYS_TO_P2SEG(dc->dc_regpaddr);
258 
259 	dc->dc_wid = 640;
260 	dc->dc_ht = 480;
261 	dc->dc_depth = 16;
262 	dc->dc_rowbytes = dc->dc_wid * (dc->dc_depth / 8);
263 	dc->dc_videobase = dc->dc_vaddr;
264 	dc->dc_blanked = 0;
265 	dc->dc_dispflags = 0;
266 
267 	/* Clear the screen. */
268 	for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t))
269 		*(u_int32_t *)(dc->dc_videobase + i) = 0x0;
270 
271 	/* Initialize the device. */
272 	pvrinit(dc);
273 
274 	dc->rinfo.ri_flg = 0;
275 	dc->rinfo.ri_depth = dc->dc_depth;
276 	dc->rinfo.ri_bits = (void *) dc->dc_videobase;
277 	dc->rinfo.ri_width = dc->dc_wid;
278 	dc->rinfo.ri_height = dc->dc_ht;
279 	dc->rinfo.ri_stride = dc->dc_rowbytes;
280 
281 	wsfont_init();
282 	/* prefer 8 pixel wide font */
283 	cookie = wsfont_find(NULL, 8, 0, 0, WSDISPLAY_FONTORDER_L2R,
284 	    WSDISPLAY_FONTORDER_L2R);
285 	if (cookie <= 0)
286 		cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R,
287 		    WSDISPLAY_FONTORDER_L2R);
288 	if (cookie <= 0) {
289 		printf("pvr: font table is empty\n");
290 		return;
291 	}
292 
293 	if (wsfont_lock(cookie, &dc->rinfo.ri_font)) {
294 		printf("pvr: unable to lock font\n");
295 		return;
296 	}
297 	dc->rinfo.ri_wsfcookie = cookie;
298 
299 	rasops_init(&dc->rinfo, 500, 500);
300 
301 	/* XXX shouldn't be global */
302 	pvr_stdscreen.nrows = dc->rinfo.ri_rows;
303 	pvr_stdscreen.ncols = dc->rinfo.ri_cols;
304 	pvr_stdscreen.textops = &dc->rinfo.ri_ops;
305 	pvr_stdscreen.capabilities = dc->rinfo.ri_caps;
306 
307 	/* XXX yuck */
308 	sprintf(pvr_stdscreen_textgeom, "%dx%d", pvr_stdscreen.ncols,
309 	    pvr_stdscreen.nrows);
310 }
311 
312 void
313 pvr_attach(struct device *parent, struct device *self, void *aux)
314 {
315 	struct pvr_softc *sc = (void *) self;
316 	struct wsemuldisplaydev_attach_args waa;
317 	int console;
318 	static const char *tvsystem_name[4] =
319 		{ "NTSC", "PAL", "PAL-M", "PAL-N" };
320 
321 	console = pvr_is_console;
322 	if (console) {
323 		sc->sc_dc = &pvr_console_dc;
324 		sc->nscreens = 1;
325 	} else {
326 		sc->sc_dc = malloc(sizeof(struct fb_devconfig), M_DEVBUF,
327 		    M_WAITOK);
328 		pvr_getdevconfig(sc->sc_dc);
329 	}
330 	printf(": %d x %d, %dbpp, %s, %s\n", sc->sc_dc->dc_wid,
331 	    sc->sc_dc->dc_ht, sc->sc_dc->dc_depth,
332 	    (sc->sc_dc->dc_dispflags & PVR_VGAMODE) ? "VGA" :
333 	       tvsystem_name[sc->sc_dc->dc_tvsystem],
334 	    (sc->sc_dc->dc_dispflags & PVR_RGBMODE) ? "RGB" : "composite");
335 
336 	/* XXX Colormap initialization? */
337 
338 	waa.console = console;
339 	waa.scrdata = &pvr_screenlist;
340 	waa.accessops = &pvr_accessops;
341 	waa.accesscookie = sc;
342 
343 	(void) config_found(self, &waa, wsemuldisplaydevprint);
344 }
345 
346 int
347 pvrioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
348 {
349 	struct pvr_softc *sc = v;
350 	struct fb_devconfig *dc = sc->sc_dc;
351 
352 	switch (cmd) {
353 	case WSDISPLAYIO_GTYPE:
354 		*(u_int *)data = WSDISPLAY_TYPE_DCPVR;
355 		return (0);
356 
357 	case WSDISPLAYIO_GINFO:
358 #define	wsd_fbip ((struct wsdisplay_fbinfo *)data)
359 		wsd_fbip->height = sc->sc_dc->dc_ht;
360 		wsd_fbip->width = sc->sc_dc->dc_wid;
361 		wsd_fbip->depth = sc->sc_dc->dc_depth;
362 		wsd_fbip->cmsize = 0;	/* XXX Colormap */
363 #undef wsd_fbip
364 		return (0);
365 
366 	case WSDISPLAYIO_GETCMAP:
367 	case WSDISPLAYIO_PUTCMAP:
368 		return (EPASSTHROUGH);	/* XXX Colormap */
369 
370 	case WSDISPLAYIO_SVIDEO:
371 		return (EPASSTHROUGH);	/* XXX */
372 
373 	case WSDISPLAYIO_GVIDEO:
374 		*(u_int *)data = dc->dc_blanked ?
375 		    WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
376 		return (0);
377 
378 	case WSDISPLAYIO_GCURPOS:
379 	case WSDISPLAYIO_SCURPOS:
380 	case WSDISPLAYIO_GCURMAX:
381 	case WSDISPLAYIO_GCURSOR:
382 	case WSDISPLAYIO_SCURSOR:
383 		return (EPASSTHROUGH);	/* XXX */
384 	}
385 
386 	return (EPASSTHROUGH);
387 }
388 
389 paddr_t
390 pvrmmap(void *v, off_t offset, int prot)
391 {
392 
393 	/*
394 	 * XXX This should be easy to support -- just need to define
395 	 * XXX offsets for the contol regs, etc.
396 	 */
397 
398 	struct pvr_softc *sc = v;
399 	struct fb_devconfig *dc = sc->sc_dc;
400 	paddr_t addr;
401 
402 	if (offset >= 0 &&
403 	    offset < sh3_round_page(dc->dc_rowbytes * dc->dc_ht))
404 		addr = sh3_btop(dc->dc_paddr + offset);
405 	else
406 		addr = (-1);	/* XXX bogus */
407 
408 	return addr;
409 }
410 
411 int
412 pvr_alloc_screen(void *v, const struct wsscreen_descr *type,
413     void **cookiep, int *curxp, int *curyp, long *attrp)
414 {
415 	struct pvr_softc *sc = v;
416 	long defattr;
417 
418 	if (sc->nscreens > 0)
419 		return (ENOMEM);
420 
421 	*cookiep = &sc->sc_dc->rinfo; /* one and only for now */
422 	*curxp = 0;
423 	*curyp = 0;
424 	(*sc->sc_dc->rinfo.ri_ops.alloc_attr)(&sc->sc_dc->rinfo, 0, 0, 0,
425 	    &defattr);
426 	*attrp = defattr;
427 	sc->nscreens++;
428 	return (0);
429 }
430 
431 void
432 pvr_free_screen(void *v, void *cookie)
433 {
434 	struct pvr_softc *sc = v;
435 
436 	if (sc->sc_dc == &pvr_console_dc)
437 		panic("pvr_free_screen: console");
438 
439 	sc->nscreens--;
440 }
441 
442 int
443 pvr_show_screen(void *v, void *cookie, int waitok,
444     void (*cb)(void *, int, int), void *cbarg)
445 {
446 
447 	return (0);
448 }
449 
450 static void
451 pvr_check_cable(struct fb_devconfig *dc)
452 {
453 	__volatile u_int32_t *porta =
454 	    (__volatile u_int32_t *)0xff80002c;
455 	u_int16_t v;
456 
457 	/* PORT8 and PORT9 is input */
458 	*porta = (*porta & ~0xf0000) | 0xa0000;
459 
460 	/* Read PORT8 and PORT9 */
461 	v = ((*(__volatile u_int16_t *)(porta + 1)) >> 8) & 3;
462 
463 	if ((v & 2) == 0)
464 		dc->dc_dispflags |= PVR_VGAMODE|PVR_RGBMODE;
465 	else if ((v & 1) == 0)
466 		dc->dc_dispflags |= PVR_RGBMODE;
467 }
468 
469 static void
470 pvr_check_tvsys(struct fb_devconfig *dc)
471 {
472 
473 	/* XXX should use flashmem device when one exists */
474 	dc->dc_tvsystem = (*(__volatile u_int8_t *)0xa021a004) & 3;
475 }
476 
477 void
478 pvrinit(struct fb_devconfig *dc)
479 {
480 	int display_lines_per_field;
481 	int v_absolute_size;
482 	int h_absolute_size;
483 	int vborder_start, vborder_stop;
484 	int hborder_start, hborder_stop;
485 	int modulo = 1, voffset, hoffset;
486 
487 	pvr_check_cable(dc);
488 	pvr_check_tvsys(dc);
489 
490 	PVR_REG_WRITE(dc, 8, 0);		/* reset */
491 	PVR_REG_WRITE(dc, PVRREG_BRDCOLR, 0);	/* black border */
492 
493 	if (dc->dc_dispflags & PVR_VGAMODE) {
494 		v_absolute_size = 524;
495 		h_absolute_size = 857;
496 
497 		display_lines_per_field = 480;
498 		hoffset = 164;
499 		voffset = 36;
500 
501 		hborder_start = 126;
502 		hborder_stop = 837;
503 
504 		vborder_start = 40;
505 		vborder_stop = 444;		/* XXX */
506 
507 		/* 31kHz, RGB565 */
508 		PVR_REG_WRITE(dc, PVRREG_DIWMODE,
509 		    DIWMODE_C | DIWMODE_COL_RGB565);
510 
511 		/* video output */
512 		PVR_REG_WRITE(dc, PVRREG_SYNCCONF, SYNCCONF_VO);
513 	} else {
514 		if (dc->dc_tvsystem & 1) {
515 			/* 50 Hz PAL */
516 			v_absolute_size = 624;
517 			h_absolute_size = 863;
518 
519 			display_lines_per_field = 240;
520 			hoffset = 174;
521 			voffset = 18;
522 
523 			hborder_start = 116;
524 			hborder_stop = 843;
525 
526 			vborder_start = 44;
527 			vborder_stop = 536;	/* XXX */
528 		} else {
529 			/* 60 Hz NTSC */
530 			v_absolute_size = 524;
531 			h_absolute_size = 857;
532 
533 			display_lines_per_field = 240;
534 			hoffset = 170;
535 			voffset = 28;
536 
537 			hborder_start = 126;
538 			hborder_stop = 837;
539 
540 			vborder_start = 18;
541 			vborder_stop = 506;	/* XXX */
542 		}
543 
544 		modulo += 640 * 2 / 4;	/* interlace -> skip every other line */
545 
546 		/* 15kHz, RGB565 */
547 		PVR_REG_WRITE(dc, PVRREG_DIWMODE,
548 		    DIWMODE_COL_RGB565);
549 
550 		/* video output, PAL/NTSC, interlace */
551 		PVR_REG_WRITE(dc, PVRREG_SYNCCONF,
552 		    SYNCCONF_VO | SYNCCONF_I | SYNCCONF_BC(dc->dc_tvsystem));
553 	}
554 
555 	/* video base address, long field */
556 	PVR_REG_WRITE(dc, PVRREG_DIWADDRL, 0);
557 
558 	/* video base address, short field */
559 	PVR_REG_WRITE(dc, PVRREG_DIWADDRS, 640 * 2);
560 
561 	/* video size */
562 	PVR_REG_WRITE(dc, PVRREG_DIWSIZE, DIWSIZE_MODULO(modulo) |
563 	    DIWSIZE_LPF(display_lines_per_field - 1) |
564 	    DIWSIZE_DPL(640 * 2 / 4 - 1));
565 
566 	PVR_REG_WRITE(dc, PVRREG_DIWVSTRT,		/* V start */
567 	    DIWVSTRT_V1(voffset) | DIWVSTRT_V2(voffset));
568 	PVR_REG_WRITE(dc, PVRREG_BRDVERT,		/* V border */
569 	    BRDVERT_START(vborder_start) | BRDVERT_STOP(vborder_stop));
570 	PVR_REG_WRITE(dc, PVRREG_DIWHSTRT, hoffset);	/* H start */
571 	PVR_REG_WRITE(dc, PVRREG_SYNCSIZE,		/* HV counter */
572 	    SYNCSIZE_V(v_absolute_size) | SYNCSIZE_H(h_absolute_size));
573 	PVR_REG_WRITE(dc, PVRREG_BRDHORZ,		/* H border */
574 	    BRDHORZ_START(hborder_start) | BRDHORZ_STOP(hborder_stop));
575 	PVR_REG_WRITE(dc, PVRREG_DIWCONF, DIWCONF_MAGIC);
576 
577 	/* RGB / composite */
578 	*(__volatile u_int32_t *)
579 	    SH3_PHYS_TO_P2SEG(0x00702c00) =
580 	    ((dc->dc_dispflags & PVR_RGBMODE) ? 0 : 3) << 8;
581 
582 	/* display on */
583 	PVR_REG_WRITE(dc, PVRREG_DIWMODE,
584 	    PVR_REG_READ(dc, PVRREG_DIWMODE) | DIWMODE_DE);
585 }
586 
587 /* Console support. */
588 
589 void	pvrcnprobe(struct consdev *);
590 void	pvrcninit(struct consdev *);
591 
592 void
593 pvrcninit(struct consdev *cndev)
594 {
595 	struct fb_devconfig *dcp = &pvr_console_dc;
596 	long defattr;
597 
598 	pvr_getdevconfig(dcp);
599 	(*dcp->rinfo.ri_ops.alloc_attr)(&dcp->rinfo, 0, 0, 0, &defattr);
600 	wsdisplay_cnattach(&pvr_stdscreen, &dcp->rinfo, 0, 0, defattr);
601 
602 	pvr_is_console = 1;
603 
604 	cn_tab->cn_pri = CN_INTERNAL;
605 
606 #if NMKBD > 0
607 	mkbd_cnattach();	/* connect keyboard and screen together */
608 #endif
609 }
610 
611 void
612 pvrcnprobe(struct consdev *cndev)
613 {
614 #if NWSDISPLAY > 0
615 	int maj, unit;
616 #endif
617 	cndev->cn_dev = NODEV;
618 	cndev->cn_pri = CN_NORMAL;
619 
620 #if NWSDISPLAY > 0
621 	unit = 0;
622 	for (maj = 0; maj < nchrdev; maj++) {
623 		if (cdevsw[maj].d_open == wsdisplayopen)
624 			break;
625 	}
626 	if (maj != nchrdev) {
627 		cndev->cn_pri = CN_INTERNAL;
628 		cndev->cn_dev = makedev(maj, unit);
629 	}
630 #endif
631 }
632