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      1 /*	$NetBSD: pvr.c,v 1.40 2025/11/24 13:28:58 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. Neither the name of The NetBSD Foundation nor the names of its
     17  *    contributors may be used to endorse or promote products derived
     18  *    from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     34 
     35 __KERNEL_RCSID(0, "$NetBSD: pvr.c,v 1.40 2025/11/24 13:28:58 thorpej Exp $");
     36 
     37 #include <sys/param.h>
     38 #include <sys/systm.h>
     39 #include <sys/kernel.h>
     40 #include <sys/device.h>
     41 #include <sys/malloc.h>
     42 #include <sys/buf.h>
     43 #include <sys/ioctl.h>
     44 #include <sys/bus.h>
     45 
     46 #include <machine/vmparam.h>
     47 #include <machine/cpu.h>
     48 
     49 #include <dev/cons.h>
     50 
     51 #include <dev/wscons/wsconsio.h>
     52 #include <dev/wscons/wsdisplayvar.h>
     53 
     54 #include <dev/wscons/wscons_callbacks.h>
     55 
     56 #include <dev/rasops/rasops.h>
     57 #include <dev/wsfont/wsfont.h>
     58 
     59 #include <dreamcast/dev/pvrvar.h>
     60 #include <dreamcast/dev/maple/mkbdvar.h>
     61 
     62 #include "mkbd.h"
     63 
     64 #define	PVRREG_FBSTART		0x05000000
     65 #define	PVRREG_REGSTART		0x005f8000
     66 
     67 #define	PVRREG_BRDCOLR		0x40
     68 #define	BRDCOLR_BLUE(x)		((x) << 0)
     69 #define	BRDCOLR_GREEN(x)	((x) << 8)
     70 #define	BRDCOLR_RED(x)		((x) << 16)
     71 
     72 #define	PVRREG_DIWMODE		0x44
     73 #define	DIWMODE_DE		(1U << 0)	/* display enable */
     74 #define	DIWMODE_SD		(1U << 1)	/* scan double enable */
     75 #define	DIWMODE_COL(x)		((x) << 2)
     76 #define	DIWMODE_COL_RGB555	DIWMODE_COL(0)	/* RGB555, 16-bit */
     77 #define	DIWMODE_COL_RGB565	DIWMODE_COL(1)	/* RGB565, 16-bit */
     78 #define	DIWMODE_COL_RGB888	DIWMODE_COL(2)	/* RGB888, 24-bit */
     79 #define	DIWMODE_COL_ARGB888	DIWMODE_COL(3)	/* RGB888, 32-bit */
     80 #define	DIWMODE_C		(1U << 23)	/* 2x clock enable (VGA) */
     81 
     82 #define	PVRREG_DIWADDRL		0x50
     83 
     84 #define	PVRREG_DIWADDRS		0x54
     85 
     86 #define	PVRREG_DIWSIZE		0x5c
     87 #define	DIWSIZE_DPL(x)		((x) << 0)	/* pixel data per line */
     88 #define	DIWSIZE_LPF(x)		((x) << 10)	/* lines per field */
     89 #define	DIWSIZE_MODULO(x)	((x) << 20)	/* words to skip + 1 */
     90 
     91 #define	PVRREG_RASEVTPOS	0xcc
     92 #define	RASEVTPOS_BOTTOM(x)	((x) << 0)
     93 #define	RASEVTPOS_TOP(x)	((x) << 16)
     94 
     95 #define	PVRREG_SYNCCONF		0xd0
     96 #define	SYNCCONF_VP		(1U << 0)	/* V-sync polarity */
     97 #define	SYNCCONF_HP		(1U << 1)	/* H-sync polarity */
     98 #define	SYNCCONF_I		(1U << 4)	/* interlace */
     99 #define	SYNCCONF_BC(x)		(1U << 6)	/* broadcast standard */
    100 #define	SYNCCONF_VO		(1U << 8)	/* video output enable */
    101 
    102 #define	PVRREG_BRDHORZ		0xd4
    103 #define	BRDHORZ_STOP(x)		((x) << 0)
    104 #define	BRDHORZ_START(x)	((x) << 16)
    105 
    106 #define	PVRREG_SYNCSIZE		0xd8
    107 #define	SYNCSIZE_H(x)		((x) << 0)
    108 #define	SYNCSIZE_V(x)		((x) << 16)
    109 
    110 #define	PVRREG_BRDVERT		0xdc
    111 #define	BRDVERT_STOP(x)		((x) << 0)
    112 #define	BRDVERT_START(x)	((x) << 16)
    113 
    114 #define	PVRREG_DIWCONF		0xe8
    115 #define	DIWCONF_LR		(1U << 8)	/* low-res */
    116 #define	DIWCONF_MAGIC		(22 << 16)
    117 
    118 #define	PVRREG_DIWHSTRT		0xec
    119 
    120 #define	PVRREG_DIWVSTRT		0xf0
    121 #define	DIWVSTRT_V1(x)		((x) << 0)
    122 #define	DIWVSTRT_V2(x)		((x) << 16)
    123 
    124 #define	PVR_REG_READ(dc, reg)						\
    125 	((volatile uint32_t *)(dc)->dc_regvaddr)[(reg) >> 2]
    126 #define	PVR_REG_WRITE(dc, reg, val)					\
    127 	((volatile uint32_t *)(dc)->dc_regvaddr)[(reg) >> 2] = (val)
    128 
    129 struct fb_devconfig {
    130 	vaddr_t dc_vaddr;		/* framebuffer virtual address */
    131 	vaddr_t dc_paddr;		/* framebuffer physical address */
    132 	vaddr_t dc_regvaddr;		/* registers virtual address */
    133 	vaddr_t dc_regpaddr;		/* registers physical address */
    134 	int	dc_wid;			/* width of frame buffer */
    135 	int	dc_ht;			/* height of frame buffer */
    136 	int	dc_depth;		/* depth, bits per pixel */
    137 	int	dc_rowbytes;		/* bytes in a FB scan line */
    138 	vaddr_t	dc_videobase;		/* base of flat frame buffer */
    139 	int	dc_blanked;		/* currently has video disabled */
    140 	int	dc_dispflags;		/* display flags */
    141 	int	dc_tvsystem;		/* TV broadcast system */
    142 
    143 	struct rasops_info dc_rinfo;
    144 
    145 	char dc_wsscrname[32];
    146 	struct wsscreen_descr dc_wsscrdescr;
    147 };
    148 
    149 #define	PVR_RGBMODE	0x01		/* RGB or composite */
    150 #define	PVR_VGAMODE	0x02		/* VGA */
    151 
    152 struct pvr_softc {
    153 	device_t sc_dev;
    154 	struct fb_devconfig *sc_dc;	/* device configuration */
    155 	int sc_nscreens;
    156 	const struct wsscreen_descr *sc_scrdescs[1];
    157 	struct wsscreen_list sc_scrlist;
    158 };
    159 
    160 static int	pvr_match(device_t, cfdata_t, void *);
    161 static void	pvr_attach(device_t, device_t, void *);
    162 
    163 CFATTACH_DECL_NEW(pvr, sizeof(struct pvr_softc),
    164     pvr_match, pvr_attach, NULL, NULL);
    165 
    166 static void	pvr_getdevconfig(struct fb_devconfig *);
    167 
    168 static struct fb_devconfig pvr_console_dc;
    169 
    170 static int	pvrioctl(void *, void *, u_long, void *, int, struct lwp *);
    171 static paddr_t	pvrmmap(void *, void *, off_t, int);
    172 
    173 static int	pvr_alloc_screen(void *, const struct wsscreen_descr *,
    174 		    void **, int *, int *, long *);
    175 static void	pvr_free_screen(void *, void *);
    176 static int	pvr_show_screen(void *, void *, int,
    177 		    void (*)(void *, int, int), void *);
    178 
    179 static const struct wsdisplay_accessops pvr_accessops = {
    180 	pvrioctl,
    181 	pvrmmap,
    182 	pvr_alloc_screen,
    183 	pvr_free_screen,
    184 	pvr_show_screen,
    185 	NULL, /* load_font */
    186 };
    187 
    188 static void	pvrinit(struct fb_devconfig *);
    189 
    190 int	pvr_is_console;
    191 
    192 int
    193 pvr_match(device_t parent, cfdata_t cf, void *aux)
    194 {
    195 
    196 	return 1;
    197 }
    198 
    199 void
    200 pvr_getdevconfig(struct fb_devconfig *dc)
    201 {
    202 	int i, cookie;
    203 
    204 	dc->dc_paddr = PVRREG_FBSTART;
    205 	dc->dc_vaddr = SH3_PHYS_TO_P2SEG(dc->dc_paddr);
    206 
    207 	dc->dc_regpaddr = PVRREG_REGSTART;
    208 	dc->dc_regvaddr = SH3_PHYS_TO_P2SEG(dc->dc_regpaddr);
    209 
    210 	dc->dc_wid = 640;
    211 	dc->dc_ht = 480;
    212 	dc->dc_depth = 16;
    213 	dc->dc_rowbytes = dc->dc_wid * (dc->dc_depth / 8);
    214 	dc->dc_videobase = dc->dc_vaddr;
    215 	dc->dc_blanked = 0;
    216 	dc->dc_dispflags = 0;
    217 
    218 	/* Clear the screen. */
    219 	for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(uint32_t))
    220 		*(uint32_t *)(dc->dc_videobase + i) = 0x0;
    221 
    222 	/* Initialize the device. */
    223 	pvrinit(dc);
    224 
    225 	dc->dc_rinfo.ri_flg = 0;
    226 	if (dc == &pvr_console_dc)
    227 		dc->dc_rinfo.ri_flg |= RI_NO_AUTO;
    228 	dc->dc_rinfo.ri_depth = dc->dc_depth;
    229 	dc->dc_rinfo.ri_bits = (void *) dc->dc_videobase;
    230 	dc->dc_rinfo.ri_width = dc->dc_wid;
    231 	dc->dc_rinfo.ri_height = dc->dc_ht;
    232 	dc->dc_rinfo.ri_stride = dc->dc_rowbytes;
    233 
    234 	wsfont_init();
    235 	/* prefer 8 pixel wide font */
    236 	cookie = wsfont_find(NULL, 8, 0, 0, WSDISPLAY_FONTORDER_L2R,
    237 	    WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
    238 	if (cookie <= 0)
    239 		cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R,
    240 		    WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
    241 	if (cookie <= 0) {
    242 		printf("pvr: font table is empty\n");
    243 		return;
    244 	}
    245 
    246 	if (wsfont_lock(cookie, &dc->dc_rinfo.ri_font)) {
    247 		printf("pvr: unable to lock font\n");
    248 		return;
    249 	}
    250 	dc->dc_rinfo.ri_wsfcookie = cookie;
    251 
    252 	rasops_init(&dc->dc_rinfo, 500, 500);
    253 
    254 	dc->dc_wsscrdescr.name = dc->dc_wsscrname;
    255 	dc->dc_wsscrdescr.ncols = dc->dc_rinfo.ri_cols;
    256 	dc->dc_wsscrdescr.nrows = dc->dc_rinfo.ri_rows;
    257 	dc->dc_wsscrdescr.textops = &dc->dc_rinfo.ri_ops;
    258 	dc->dc_wsscrdescr.capabilities = dc->dc_rinfo.ri_caps;
    259 
    260 	snprintf(dc->dc_wsscrname, sizeof(dc->dc_wsscrname), "%dx%d",
    261 	    dc->dc_wsscrdescr.ncols, dc->dc_wsscrdescr.nrows);
    262 }
    263 
    264 void
    265 pvr_attach(device_t parent, device_t self, void *aux)
    266 {
    267 	struct pvr_softc *sc = device_private(self);
    268 	struct wsemuldisplaydev_attach_args waa;
    269 	int console;
    270 	static const char *tvsystem_name[4] =
    271 		{ "NTSC", "PAL", "PAL-M", "PAL-N" };
    272 
    273 	sc->sc_dev = self;
    274 	console = pvr_is_console;
    275 	if (console) {
    276 		sc->sc_dc = &pvr_console_dc;
    277 		sc->sc_dc->dc_rinfo.ri_flg &= ~RI_NO_AUTO;
    278 		sc->sc_nscreens = 1;
    279 	} else {
    280 		sc->sc_dc = malloc(sizeof(struct fb_devconfig), M_DEVBUF,
    281 		    M_WAITOK | M_ZERO);
    282 		pvr_getdevconfig(sc->sc_dc);
    283 	}
    284 	printf(": %d x %d, %dbpp, %s, %s\n", sc->sc_dc->dc_wid,
    285 	    sc->sc_dc->dc_ht, sc->sc_dc->dc_depth,
    286 	    (sc->sc_dc->dc_dispflags & PVR_VGAMODE) ? "VGA" :
    287 	       tvsystem_name[sc->sc_dc->dc_tvsystem],
    288 	    (sc->sc_dc->dc_dispflags & PVR_RGBMODE) ? "RGB" : "composite");
    289 
    290 	/* XXX Colormap initialization? */
    291 
    292 	sc->sc_scrdescs[0] = &sc->sc_dc->dc_wsscrdescr;
    293 	sc->sc_scrlist.nscreens = 1;
    294 	sc->sc_scrlist.screens = sc->sc_scrdescs;
    295 
    296 	waa.console = console;
    297 	waa.scrdata = &sc->sc_scrlist;
    298 	waa.accessops = &pvr_accessops;
    299 	waa.accesscookie = sc;
    300 
    301 	(void) config_found(self, &waa, wsemuldisplaydevprint, CFARGS_NONE);
    302 }
    303 
    304 int
    305 pvrioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l)
    306 {
    307 	struct pvr_softc *sc = v;
    308 	struct fb_devconfig *dc = sc->sc_dc;
    309 
    310 	switch (cmd) {
    311 	case WSDISPLAYIO_GTYPE:
    312 		*(u_int *)data = WSDISPLAY_TYPE_DCPVR;
    313 		return 0;
    314 
    315 	case WSDISPLAYIO_GINFO:
    316 #define	wsd_fbip ((struct wsdisplay_fbinfo *)data)
    317 		wsd_fbip->height = sc->sc_dc->dc_ht;
    318 		wsd_fbip->width = sc->sc_dc->dc_wid;
    319 		wsd_fbip->depth = sc->sc_dc->dc_depth;
    320 		wsd_fbip->cmsize = 0;	/* XXX Colormap */
    321 #undef wsd_fbip
    322 		return 0;
    323 
    324 	case WSDISPLAYIO_LINEBYTES:
    325 		*(u_int *)data = sc->sc_dc->dc_rinfo.ri_stride;
    326 		return 0;
    327 
    328 	case WSDISPLAYIO_GETCMAP:
    329 	case WSDISPLAYIO_PUTCMAP:
    330 		return EPASSTHROUGH;	/* XXX Colormap */
    331 
    332 	case WSDISPLAYIO_SVIDEO:
    333 		switch (*(u_int *)data) {
    334 		case WSDISPLAYIO_VIDEO_OFF:
    335 			if (!dc->dc_blanked) {
    336 				dc->dc_blanked = 1;
    337 				PVR_REG_WRITE(dc, PVRREG_DIWMODE,
    338 				    PVR_REG_READ(dc, PVRREG_DIWMODE) &
    339 				    ~DIWMODE_DE);
    340 			}
    341 			break;
    342 		case WSDISPLAYIO_VIDEO_ON:
    343 			if (dc->dc_blanked) {
    344 				dc->dc_blanked = 0;
    345 				PVR_REG_WRITE(dc, PVRREG_DIWMODE,
    346 				    PVR_REG_READ(dc, PVRREG_DIWMODE) |
    347 				    DIWMODE_DE);
    348 			}
    349 			break;
    350 		default:
    351 			return EPASSTHROUGH;	/* XXX */
    352 		}
    353 		return 0;
    354 
    355 	case WSDISPLAYIO_GVIDEO:
    356 		*(u_int *)data = dc->dc_blanked ?
    357 		    WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
    358 		return 0;
    359 
    360 	case WSDISPLAYIO_GCURPOS:
    361 	case WSDISPLAYIO_SCURPOS:
    362 	case WSDISPLAYIO_GCURMAX:
    363 	case WSDISPLAYIO_GCURSOR:
    364 	case WSDISPLAYIO_SCURSOR:
    365 		return EPASSTHROUGH;	/* XXX */
    366 	}
    367 
    368 	return EPASSTHROUGH;
    369 }
    370 
    371 paddr_t
    372 pvrmmap(void *v, void *vs, off_t offset, int prot)
    373 {
    374 
    375 	/*
    376 	 * XXX This should be easy to support -- just need to define
    377 	 * XXX offsets for the control regs, etc.
    378 	 */
    379 
    380 	struct pvr_softc *sc = v;
    381 	struct fb_devconfig *dc = sc->sc_dc;
    382 	paddr_t addr;
    383 
    384 	if (offset >= 0 &&
    385 	    offset < sh3_round_page(dc->dc_rowbytes * dc->dc_ht))
    386 		addr = sh3_btop(dc->dc_paddr + offset);
    387 	else
    388 		addr = (-1);	/* XXX bogus */
    389 
    390 	return addr;
    391 }
    392 
    393 int
    394 pvr_alloc_screen(void *v, const struct wsscreen_descr *type,
    395     void **cookiep, int *curxp, int *curyp, long *attrp)
    396 {
    397 	struct pvr_softc *sc = v;
    398 	long defattr;
    399 
    400 	if (sc->sc_nscreens > 0)
    401 		return ENOMEM;
    402 
    403 	*cookiep = &sc->sc_dc->dc_rinfo; /* one and only for now */
    404 	*curxp = 0;
    405 	*curyp = 0;
    406 	(*sc->sc_dc->dc_rinfo.ri_ops.allocattr)(&sc->sc_dc->dc_rinfo, 0, 0, 0,
    407 	    &defattr);
    408 	*attrp = defattr;
    409 	sc->sc_nscreens++;
    410 	return 0;
    411 }
    412 
    413 void
    414 pvr_free_screen(void *v, void *cookie)
    415 {
    416 	struct pvr_softc *sc = v;
    417 
    418 	if (sc->sc_dc == &pvr_console_dc)
    419 		panic("pvr_free_screen: console");
    420 
    421 	sc->sc_nscreens--;
    422 }
    423 
    424 int
    425 pvr_show_screen(void *v, void *cookie, int waitok,
    426     void (*cb)(void *, int, int), void *cbarg)
    427 {
    428 
    429 	return 0;
    430 }
    431 
    432 static void
    433 pvr_check_cable(struct fb_devconfig *dc)
    434 {
    435 	volatile uint32_t *porta =
    436 	    (volatile uint32_t *)0xff80002c;
    437 	uint16_t v;
    438 
    439 	/* PORT8 and PORT9 is input */
    440 	*porta = (*porta & ~0xf0000) | 0xa0000;
    441 
    442 	/* Read PORT8 and PORT9 */
    443 	v = ((*(volatile uint16_t *)(porta + 1)) >> 8) & 3;
    444 
    445 	if ((v & 2) == 0)
    446 		dc->dc_dispflags |= PVR_VGAMODE|PVR_RGBMODE;
    447 	else if ((v & 1) == 0)
    448 		dc->dc_dispflags |= PVR_RGBMODE;
    449 }
    450 
    451 static void
    452 pvr_check_tvsys(struct fb_devconfig *dc)
    453 {
    454 
    455 	/* XXX should use flashmem device when one exists */
    456 	dc->dc_tvsystem = (*(volatile uint8_t *)0xa021a004) & 3;
    457 }
    458 
    459 void
    460 pvrinit(struct fb_devconfig *dc)
    461 {
    462 	int display_lines_per_field;
    463 	int v_absolute_size;
    464 	int h_absolute_size;
    465 	int vborder_start, vborder_stop;
    466 	int hborder_start, hborder_stop;
    467 	int modulo = 1, voffset, hoffset;
    468 
    469 	pvr_check_cable(dc);
    470 	pvr_check_tvsys(dc);
    471 
    472 	PVR_REG_WRITE(dc, 8, 0);		/* reset */
    473 	PVR_REG_WRITE(dc, PVRREG_BRDCOLR, 0);	/* black border */
    474 
    475 	if (dc->dc_dispflags & PVR_VGAMODE) {
    476 		v_absolute_size = 524;
    477 		h_absolute_size = 857;
    478 
    479 		display_lines_per_field = 480;
    480 		hoffset = 164;
    481 		voffset = 36;
    482 
    483 		hborder_start = 126;
    484 		hborder_stop = 837;
    485 
    486 		vborder_start = 40;
    487 		vborder_stop = 444;		/* XXX */
    488 
    489 		/* 31kHz, RGB565 */
    490 		PVR_REG_WRITE(dc, PVRREG_DIWMODE,
    491 		    DIWMODE_C | DIWMODE_COL_RGB565);
    492 
    493 		/* video output */
    494 		PVR_REG_WRITE(dc, PVRREG_SYNCCONF, SYNCCONF_VO);
    495 	} else {
    496 		if (dc->dc_tvsystem & 1) {
    497 			/* 50 Hz PAL */
    498 			v_absolute_size = 624;
    499 			h_absolute_size = 863;
    500 
    501 			display_lines_per_field = 240;
    502 			hoffset = 174;
    503 			voffset = 18;
    504 
    505 			hborder_start = 116;
    506 			hborder_stop = 843;
    507 
    508 			vborder_start = 44;
    509 			vborder_stop = 536;	/* XXX */
    510 		} else {
    511 			/* 60 Hz NTSC */
    512 			v_absolute_size = 524;
    513 			h_absolute_size = 857;
    514 
    515 			display_lines_per_field = 240;
    516 			hoffset = 170;
    517 			voffset = 28;
    518 
    519 			hborder_start = 126;
    520 			hborder_stop = 837;
    521 
    522 			vborder_start = 18;
    523 			vborder_stop = 506;	/* XXX */
    524 		}
    525 
    526 		modulo += 640 * 2 / 4;	/* interlace -> skip every other line */
    527 
    528 		/* 15kHz, RGB565 */
    529 		PVR_REG_WRITE(dc, PVRREG_DIWMODE,
    530 		    DIWMODE_COL_RGB565);
    531 
    532 		/* video output, PAL/NTSC, interlace */
    533 		PVR_REG_WRITE(dc, PVRREG_SYNCCONF,
    534 		    SYNCCONF_VO | SYNCCONF_I | SYNCCONF_BC(dc->dc_tvsystem));
    535 	}
    536 
    537 	/* video base address, long field */
    538 	PVR_REG_WRITE(dc, PVRREG_DIWADDRL, 0);
    539 
    540 	/* video base address, short field */
    541 	PVR_REG_WRITE(dc, PVRREG_DIWADDRS, 640 * 2);
    542 
    543 	/* video size */
    544 	PVR_REG_WRITE(dc, PVRREG_DIWSIZE, DIWSIZE_MODULO(modulo) |
    545 	    DIWSIZE_LPF(display_lines_per_field - 1) |
    546 	    DIWSIZE_DPL(640 * 2 / 4 - 1));
    547 
    548 	PVR_REG_WRITE(dc, PVRREG_DIWVSTRT,		/* V start */
    549 	    DIWVSTRT_V1(voffset) | DIWVSTRT_V2(voffset));
    550 	PVR_REG_WRITE(dc, PVRREG_BRDVERT,		/* V border */
    551 	    BRDVERT_START(vborder_start) | BRDVERT_STOP(vborder_stop));
    552 	PVR_REG_WRITE(dc, PVRREG_DIWHSTRT, hoffset);	/* H start */
    553 	PVR_REG_WRITE(dc, PVRREG_SYNCSIZE,		/* HV counter */
    554 	    SYNCSIZE_V(v_absolute_size) | SYNCSIZE_H(h_absolute_size));
    555 	PVR_REG_WRITE(dc, PVRREG_BRDHORZ,		/* H border */
    556 	    BRDHORZ_START(hborder_start) | BRDHORZ_STOP(hborder_stop));
    557 	PVR_REG_WRITE(dc, PVRREG_DIWCONF, DIWCONF_MAGIC);
    558 
    559 	/* RGB / composite */
    560 	*(volatile uint32_t *)
    561 	    SH3_PHYS_TO_P2SEG(0x00702c00) =
    562 	    ((dc->dc_dispflags & PVR_RGBMODE) ? 0 : 3) << 8;
    563 
    564 	/* display on */
    565 	PVR_REG_WRITE(dc, PVRREG_DIWMODE,
    566 	    PVR_REG_READ(dc, PVRREG_DIWMODE) | DIWMODE_DE);
    567 }
    568 
    569 /* Console support. */
    570 
    571 void
    572 pvrcninit(struct consdev *cndev)
    573 {
    574 	struct fb_devconfig *dcp = &pvr_console_dc;
    575 	long defattr;
    576 
    577 	pvr_getdevconfig(dcp);
    578 	(*dcp->dc_rinfo.ri_ops.allocattr)(&dcp->dc_rinfo, 0, 0, 0, &defattr);
    579 	wsdisplay_cnattach(&dcp->dc_wsscrdescr, &dcp->dc_rinfo, 0, 0, defattr);
    580 
    581 	pvr_is_console = 1;
    582 
    583 	cn_tab->cn_pri = CN_INTERNAL;
    584 
    585 #if NMKBD > 0
    586 	mkbd_cnattach();	/* connect keyboard and screen together */
    587 #endif
    588 }
    589 
    590 void
    591 pvrcnprobe(struct consdev *cndev)
    592 {
    593 #if NWSDISPLAY > 0
    594 	int maj, unit;
    595 	extern const struct cdevsw wsdisplay_cdevsw;
    596 #endif
    597 	cndev->cn_dev = NODEV;
    598 	cndev->cn_pri = CN_NORMAL;
    599 
    600 #if NWSDISPLAY > 0
    601 	unit = 0;
    602 	maj = cdevsw_lookup_major(&wsdisplay_cdevsw);
    603 	if (maj != -1) {
    604 		cndev->cn_pri = CN_INTERNAL;
    605 		cndev->cn_dev = makedev(maj, unit);
    606 	}
    607 #endif
    608 }
    609