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p9100.c revision 1.35
      1 /*	$NetBSD: p9100.c,v 1.35 2007/03/04 06:02:41 christos Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1998, 2005, 2006 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Matt Thomas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * color display (p9100) driver.
     41  *
     42  * Does not handle interrupts, even though they can occur.
     43  *
     44  * XXX should defer colormap updates to vertical retrace interrupts
     45  */
     46 
     47 #include <sys/cdefs.h>
     48 __KERNEL_RCSID(0, "$NetBSD: p9100.c,v 1.35 2007/03/04 06:02:41 christos Exp $");
     49 
     50 #include <sys/param.h>
     51 #include <sys/systm.h>
     52 #include <sys/buf.h>
     53 #include <sys/device.h>
     54 #include <sys/ioctl.h>
     55 #include <sys/malloc.h>
     56 #include <sys/mman.h>
     57 #include <sys/tty.h>
     58 #include <sys/conf.h>
     59 
     60 #include <machine/bus.h>
     61 #include <machine/autoconf.h>
     62 
     63 #include <dev/sun/fbio.h>
     64 #include <dev/sun/fbvar.h>
     65 #include <dev/sun/btreg.h>
     66 #include <dev/sun/btvar.h>
     67 
     68 #include <dev/sbus/p9100reg.h>
     69 
     70 #include <dev/sbus/sbusvar.h>
     71 
     72 /*#include <dev/wscons/wsdisplayvar.h>*/
     73 #include <dev/wscons/wsconsio.h>
     74 #include <dev/wsfont/wsfont.h>
     75 #include <dev/rasops/rasops.h>
     76 
     77 #include <dev/wscons/wsdisplay_vconsvar.h>
     78 
     79 #include "opt_wsemul.h"
     80 #include "rasops_glue.h"
     81 
     82 #include "tctrl.h"
     83 #if NTCTRL > 0
     84 #include <machine/tctrl.h>
     85 #include <sparc/dev/tctrlvar.h>/*XXX*/
     86 #endif
     87 
     88 struct pnozz_cursor {
     89 	short	pc_enable;		/* cursor is enabled */
     90 	struct	fbcurpos pc_pos;	/* position */
     91 	struct	fbcurpos pc_hot;	/* hot-spot */
     92 	struct	fbcurpos pc_size;	/* size of mask & image fields */
     93 	uint32_t pc_bits[0x100];	/* space for mask & image bits */
     94 	unsigned char red[3], green[3];
     95 	unsigned char blue[3];		/* cursor palette */
     96 };
     97 
     98 /* per-display variables */
     99 struct p9100_softc {
    100 	struct device	sc_dev;		/* base device */
    101 	struct sbusdev	sc_sd;		/* sbus device */
    102 	struct fbdevice	sc_fb;		/* frame buffer device */
    103 
    104 	bus_space_tag_t	sc_bustag;
    105 
    106 	bus_addr_t	sc_ctl_paddr;	/* phys address description */
    107 	bus_size_t	sc_ctl_psize;	/*   for device mmap() */
    108 	bus_space_handle_t sc_ctl_memh;	/*   bus space handle */
    109 
    110 	bus_addr_t	sc_cmd_paddr;	/* phys address description */
    111 	bus_size_t	sc_cmd_psize;	/*   for device mmap() */
    112 	bus_space_handle_t sc_cmd_memh;	/*   bus space handle */
    113 
    114 	bus_addr_t	sc_fb_paddr;	/* phys address description */
    115 	bus_size_t	sc_fb_psize;	/*   for device mmap() */
    116 	bus_space_handle_t sc_fb_memh;	/*   bus space handle */
    117 
    118 	volatile uint32_t sc_junk;
    119 	uint32_t sc_mono_width;	/* for setup_mono */
    120 
    121 	uint32_t sc_width;
    122 	uint32_t sc_height;	/* panel width / height */
    123 	uint32_t sc_stride;
    124 	uint32_t sc_depth;
    125 	union	bt_cmap sc_cmap;	/* Brooktree color map */
    126 
    127 	struct pnozz_cursor sc_cursor;
    128 
    129 	int sc_mode;
    130 	int sc_video, sc_powerstate;
    131 	uint32_t sc_bg;
    132 	volatile uint32_t sc_last_offset;
    133 	struct vcons_data vd;
    134 };
    135 
    136 
    137 static struct vcons_screen p9100_console_screen;
    138 
    139 extern const u_char rasops_cmap[768];
    140 
    141 struct wsscreen_descr p9100_defscreendesc = {
    142 	"default",
    143 	0, 0,
    144 	NULL,
    145 	8, 16,
    146 	WSSCREEN_WSCOLORS,
    147 };
    148 
    149 const struct wsscreen_descr *_p9100_scrlist[] = {
    150 	&p9100_defscreendesc,
    151 	/* XXX other formats, graphics screen? */
    152 };
    153 
    154 struct wsscreen_list p9100_screenlist = {
    155 	sizeof(_p9100_scrlist) / sizeof(struct wsscreen_descr *), _p9100_scrlist
    156 };
    157 
    158 /* autoconfiguration driver */
    159 static int	p9100_sbus_match(struct device *, struct cfdata *, void *);
    160 static void	p9100_sbus_attach(struct device *, struct device *, void *);
    161 
    162 static void	p9100unblank(struct device *);
    163 static void	p9100_shutdown(void *);
    164 
    165 CFATTACH_DECL(pnozz, sizeof(struct p9100_softc),
    166     p9100_sbus_match, p9100_sbus_attach, NULL, NULL);
    167 
    168 extern struct cfdriver pnozz_cd;
    169 
    170 static dev_type_open(p9100open);
    171 static dev_type_ioctl(p9100ioctl);
    172 static dev_type_mmap(p9100mmap);
    173 
    174 const struct cdevsw pnozz_cdevsw = {
    175 	p9100open, nullclose, noread, nowrite, p9100ioctl,
    176 	nostop, notty, nopoll, p9100mmap, nokqfilter,
    177 };
    178 
    179 /* frame buffer generic driver */
    180 static struct fbdriver p9100fbdriver = {
    181 	p9100unblank, p9100open, nullclose, p9100ioctl, nopoll,
    182 	p9100mmap, nokqfilter
    183 };
    184 
    185 static void	p9100loadcmap(struct p9100_softc *, int, int);
    186 static void	p9100_set_video(struct p9100_softc *, int);
    187 static int	p9100_get_video(struct p9100_softc *);
    188 static uint32_t p9100_ctl_read_4(struct p9100_softc *, bus_size_t);
    189 static void	p9100_ctl_write_4(struct p9100_softc *, bus_size_t, uint32_t);
    190 static uint8_t	p9100_ramdac_read(struct p9100_softc *, bus_size_t);
    191 static void	p9100_ramdac_write(struct p9100_softc *, bus_size_t, uint8_t);
    192 
    193 static uint8_t	p9100_ramdac_read_ctl(struct p9100_softc *, int);
    194 static void	p9100_ramdac_write_ctl(struct p9100_softc *, int, uint8_t);
    195 
    196 static void 	p9100_init_engine(struct p9100_softc *);
    197 
    198 #if NWSDISPLAY > 0
    199 static void	p9100_sync(struct p9100_softc *);
    200 static void	p9100_bitblt(void *, int, int, int, int, int, int, uint32_t);
    201 static void 	p9100_rectfill(void *, int, int, int, int, uint32_t);
    202 static void	p9100_clearscreen(struct p9100_softc *);
    203 
    204 static void	p9100_setup_mono(struct p9100_softc *, int, int, int, int,
    205 		    uint32_t, uint32_t);
    206 static void	p9100_feed_line(struct p9100_softc *, int, uint8_t *);
    207 static void	p9100_set_color_reg(struct p9100_softc *, int, int32_t);
    208 
    209 static void	p9100_copycols(void *, int, int, int, int);
    210 static void	p9100_erasecols(void *, int, int, int, long);
    211 static void	p9100_copyrows(void *, int, int, int);
    212 static void	p9100_eraserows(void *, int, int, long);
    213 /*static int	p9100_mapchar(void *, int, u_int *);*/
    214 static void	p9100_putchar(void *, int, int, u_int, long);
    215 static void	p9100_cursor(void *, int, int, int);
    216 static int	p9100_allocattr(void *, int, int, int, long *);
    217 
    218 /*static void	p9100_scroll(void *, void *, int);*/
    219 
    220 static int	p9100_putcmap(struct p9100_softc *, struct wsdisplay_cmap *);
    221 static int 	p9100_getcmap(struct p9100_softc *, struct wsdisplay_cmap *);
    222 static int	p9100_ioctl(void *, void *, u_long, void *, int, struct lwp *);
    223 static paddr_t	p9100_mmap(void *, void *, off_t, int);
    224 
    225 /*static int	p9100_load_font(void *, void *, struct wsdisplay_font *);*/
    226 
    227 static void	p9100_init_screen(void *, struct vcons_screen *, int,
    228 	    long *);
    229 #endif
    230 
    231 static void	p9100_init_cursor(struct p9100_softc *);
    232 
    233 static void	p9100_set_fbcursor(struct p9100_softc *);
    234 static void	p9100_setcursorcmap(struct p9100_softc *);
    235 static void	p9100_loadcursor(struct p9100_softc *);
    236 
    237 static int	p9100_intr(void *);
    238 
    239 /* power management stuff */
    240 static void p9100_power_hook(int, void *);
    241 
    242 static void p9100_set_extvga(void *, int);
    243 
    244 #if NWSDISPLAY > 0
    245 struct wsdisplay_accessops p9100_accessops = {
    246 	p9100_ioctl,
    247 	p9100_mmap,
    248 	NULL,	/* vcons_alloc_screen */
    249 	NULL,	/* vcons_free_screen */
    250 	NULL,	/* vcons_show_screen */
    251 	NULL,	/* load_font */
    252 	NULL,	/* polls */
    253 	NULL,	/* scroll */
    254 };
    255 #endif
    256 
    257 #define PNOZZ_LATCH(sc, off) if(sc->sc_last_offset == (off & 0xffffff80)) { \
    258 		sc->sc_junk = bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, \
    259 		    off); \
    260 		sc->sc_last_offset = off & 0xffffff80; }
    261 
    262 /*
    263  * Match a p9100.
    264  */
    265 static int
    266 p9100_sbus_match(struct device *parent, struct cfdata *cf, void *aux)
    267 {
    268 	struct sbus_attach_args *sa = aux;
    269 
    270 	return (strcmp("p9100", sa->sa_name) == 0);
    271 }
    272 
    273 
    274 /*
    275  * Attach a display.  We need to notice if it is the console, too.
    276  */
    277 static void
    278 p9100_sbus_attach(struct device *parent, struct device *self, void *args)
    279 {
    280 	struct p9100_softc *sc = (struct p9100_softc *)self;
    281 	struct sbus_attach_args *sa = args;
    282 	struct fbdevice *fb = &sc->sc_fb;
    283 	int isconsole;
    284 	int node;
    285 	int i, j;
    286 	uint8_t ver;
    287 
    288 #if NWSDISPLAY > 0
    289 	struct wsemuldisplaydev_attach_args aa;
    290 	struct rasops_info *ri;
    291 	unsigned long defattr;
    292 #endif
    293 
    294 	sc->sc_last_offset = 0xffffffff;
    295 
    296 	/* Remember cookies for p9100_mmap() */
    297 	sc->sc_bustag = sa->sa_bustag;
    298 	sc->sc_ctl_paddr = sbus_bus_addr(sa->sa_bustag,
    299 		sa->sa_reg[0].oa_space, sa->sa_reg[0].oa_base);
    300 	sc->sc_ctl_psize = 0x8000;/*(bus_size_t)sa->sa_reg[0].oa_size;*/
    301 
    302 	sc->sc_cmd_paddr = sbus_bus_addr(sa->sa_bustag,
    303 		sa->sa_reg[1].oa_space, sa->sa_reg[1].oa_base);
    304 	sc->sc_cmd_psize = (bus_size_t)sa->sa_reg[1].oa_size;
    305 
    306 	sc->sc_fb_paddr = sbus_bus_addr(sa->sa_bustag,
    307 		sa->sa_reg[2].oa_space, sa->sa_reg[2].oa_base);
    308 	sc->sc_fb_psize = (bus_size_t)sa->sa_reg[2].oa_size;
    309 
    310 	fb->fb_driver = &p9100fbdriver;
    311 	fb->fb_device = &sc->sc_dev;
    312 	fb->fb_flags = device_cfdata(&sc->sc_dev)->cf_flags & FB_USERMASK;
    313 #ifdef PNOZZ_EMUL_CG3
    314 	fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
    315 #else
    316 	fb->fb_type.fb_type = FBTYPE_P9100;
    317 #endif
    318 	fb->fb_pixels = NULL;
    319 
    320 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    321 
    322 	node = sa->sa_node;
    323 	isconsole = fb_is_console(node);
    324 	if (!isconsole) {
    325 		printf("\n%s: fatal error: PROM didn't configure device\n",
    326 		    self->dv_xname);
    327 		return;
    328 	}
    329 
    330 	/*
    331 	 * When the ROM has mapped in a p9100 display, the address
    332 	 * maps only the video RAM, so in any case we have to map the
    333 	 * registers ourselves.  We only need the video RAM if we are
    334 	 * going to print characters via rconsole.
    335 	 */
    336 	if (sbus_bus_map(sc->sc_bustag,
    337 			 sa->sa_reg[0].oa_space,
    338 			 sa->sa_reg[0].oa_base,
    339 			 /*
    340 			  * XXX for some reason the SBus resources don't cover
    341 			  * all registers, so we just map what we need
    342 			  */
    343 			 /*sc->sc_ctl_psize*/ 0x8000,
    344 			 /*BUS_SPACE_MAP_LINEAR*/0, &sc->sc_ctl_memh) != 0) {
    345 		printf("%s: cannot map control registers\n", self->dv_xname);
    346 		return;
    347 	}
    348 
    349 	if (sa->sa_npromvaddrs != 0)
    350 		fb->fb_pixels = (void *)sa->sa_promvaddrs[0];
    351 
    352 	if (fb->fb_pixels == NULL) {
    353 		if (sbus_bus_map(sc->sc_bustag,
    354 				sa->sa_reg[2].oa_space,
    355 				sa->sa_reg[2].oa_base,
    356 				sc->sc_fb_psize,
    357 				BUS_SPACE_MAP_LINEAR, &sc->sc_fb_memh) != 0) {
    358 			printf("%s: cannot map framebuffer\n", self->dv_xname);
    359 			return;
    360 		}
    361 		fb->fb_pixels = (char *)sc->sc_fb_memh;
    362 	} else {
    363 		sc->sc_fb_memh = (bus_space_handle_t) fb->fb_pixels;
    364 	}
    365 
    366 	i = p9100_ctl_read_4(sc, 0x0004);
    367 	switch ((i >> 26) & 7) {
    368 	    case 5: fb->fb_type.fb_depth = 32; break;
    369 	    case 7: fb->fb_type.fb_depth = 24; break;
    370 	    case 3: fb->fb_type.fb_depth = 16; break;
    371 	    case 2: fb->fb_type.fb_depth = 8; break;
    372 	    default: {
    373 		panic("pnozz: can't determine screen depth (0x%02x)", i);
    374 	    }
    375 	}
    376 	sc->sc_depth = (fb->fb_type.fb_depth >> 3);
    377 
    378 	/* XXX for some reason I get a kernel trap with this */
    379 	sc->sc_width = prom_getpropint(node, "width", 800);
    380 	sc->sc_height = prom_getpropint(node, "height", 600);
    381 
    382 	sc->sc_stride = prom_getpropint(node, "linebytes", sc->sc_width *
    383 	    (fb->fb_type.fb_depth >> 3));
    384 
    385 	/* check the RAMDAC */
    386 	ver = p9100_ramdac_read_ctl(sc, DAC_VERSION);
    387 
    388 	p9100_init_engine(sc);
    389 
    390 	fb_setsize_obp(fb, fb->fb_type.fb_depth, sc->sc_width, sc->sc_height,
    391 	    node);
    392 
    393 	sbus_establish(&sc->sc_sd, &sc->sc_dev);
    394 	bus_intr_establish(sc->sc_bustag, sa->sa_pri, IPL_BIO,
    395 	    p9100_intr, sc);
    396 
    397 	fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
    398 	printf(": rev %d / %x, %dx%d, depth %d mem %x",
    399 	       (i & 7), ver, fb->fb_type.fb_width, fb->fb_type.fb_height,
    400 	       fb->fb_type.fb_depth, (unsigned int)sc->sc_fb_psize);
    401 
    402 	fb->fb_type.fb_cmsize = prom_getpropint(node, "cmsize", 256);
    403 	if ((1 << fb->fb_type.fb_depth) != fb->fb_type.fb_cmsize)
    404 		printf(", %d entry colormap", fb->fb_type.fb_cmsize);
    405 
    406 	/* Initialize the default color map. */
    407 	/*bt_initcmap(&sc->sc_cmap, 256);*/
    408 	j = 0;
    409 	for (i = 0; i < 256; i++) {
    410 		sc->sc_cmap.cm_map[i][0] = rasops_cmap[j];
    411 		j++;
    412 		sc->sc_cmap.cm_map[i][1] = rasops_cmap[j];
    413 		j++;
    414 		sc->sc_cmap.cm_map[i][2] = rasops_cmap[j];
    415 		j++;
    416 	}
    417 	p9100loadcmap(sc, 0, 256);
    418 
    419 	/* make sure we are not blanked */
    420 	if (isconsole)
    421 		p9100_set_video(sc, 1);
    422 
    423 	if (shutdownhook_establish(p9100_shutdown, sc) == NULL) {
    424 		panic("%s: could not establish shutdown hook",
    425 		      sc->sc_dev.dv_xname);
    426 	}
    427 
    428 	if (isconsole) {
    429 		printf(" (console)\n");
    430 #ifdef RASTERCONSOLE
    431 		/*p9100loadcmap(sc, 255, 1);*/
    432 		fbrcons_init(fb);
    433 #endif
    434 	} else
    435 		printf("\n");
    436 
    437 #if NWSDISPLAY > 0
    438 	wsfont_init();
    439 
    440 	vcons_init(&sc->vd, sc, &p9100_defscreendesc, &p9100_accessops);
    441 	sc->vd.init_screen = p9100_init_screen;
    442 
    443 	vcons_init_screen(&sc->vd, &p9100_console_screen, 1, &defattr);
    444 	p9100_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    445 
    446 	sc->sc_bg = (defattr >> 16) & 0xff;
    447 	p9100_clearscreen(sc);
    448 
    449 	ri = &p9100_console_screen.scr_ri;
    450 
    451 	p9100_defscreendesc.nrows = ri->ri_rows;
    452 	p9100_defscreendesc.ncols = ri->ri_cols;
    453 	p9100_defscreendesc.textops = &ri->ri_ops;
    454 	p9100_defscreendesc.capabilities = ri->ri_caps;
    455 
    456 	if(isconsole) {
    457 		wsdisplay_cnattach(&p9100_defscreendesc, ri, 0, 0, defattr);
    458 	}
    459 
    460 	aa.console = isconsole;
    461 	aa.scrdata = &p9100_screenlist;
    462 	aa.accessops = &p9100_accessops;
    463 	aa.accesscookie = &sc->vd;
    464 
    465 	config_found(self, &aa, wsemuldisplaydevprint);
    466 #endif
    467 	/* cursor sprite handling */
    468 	p9100_init_cursor(sc);
    469 
    470 	/* attach the fb */
    471 	fb_attach(fb, isconsole);
    472 
    473 	/* register with power management */
    474 	sc->sc_video = 1;
    475 	sc->sc_powerstate = PWR_RESUME;
    476 	powerhook_establish(sc->sc_dev.dv_xname, p9100_power_hook, sc);
    477 
    478 #if NTCTRL > 0
    479 	/* register callback for external monitor status change */
    480 	tadpole_register_callback(p9100_set_extvga, sc);
    481 #endif
    482 }
    483 
    484 static void
    485 p9100_shutdown(arg)
    486 	void *arg;
    487 {
    488 	struct p9100_softc *sc = arg;
    489 
    490 #ifdef RASTERCONSOLE
    491 	sc->sc_cmap.cm_map[0][0] = 0xff;
    492 	sc->sc_cmap.cm_map[0][1] = 0xff;
    493 	sc->sc_cmap.cm_map[0][2] = 0xff;
    494 	sc->sc_cmap.cm_map[1][0] = 0;
    495 	sc->sc_cmap.cm_map[1][1] = 0;
    496 	sc->sc_cmap.cm_map[1][2] = 0x00;
    497 	p9100loadcmap(sc, 0, 2);
    498 	sc->sc_cmap.cm_map[255][0] = 0;
    499 	sc->sc_cmap.cm_map[255][1] = 0;
    500 	sc->sc_cmap.cm_map[255][2] = 0;
    501 	p9100loadcmap(sc, 255, 1);
    502 #endif
    503 	p9100_set_video(sc, 1);
    504 }
    505 
    506 int
    507 p9100open(dev_t dev, int flags, int mode, struct lwp *l)
    508 {
    509 	int unit = minor(dev);
    510 
    511 	if (unit >= pnozz_cd.cd_ndevs || pnozz_cd.cd_devs[unit] == NULL)
    512 		return (ENXIO);
    513 	return (0);
    514 }
    515 
    516 int
    517 p9100ioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
    518 {
    519 	struct p9100_softc *sc = pnozz_cd.cd_devs[minor(dev)];
    520 	struct fbgattr *fba;
    521 	int error, v;
    522 
    523 	switch (cmd) {
    524 
    525 	case FBIOGTYPE:
    526 		*(struct fbtype *)data = sc->sc_fb.fb_type;
    527 		break;
    528 
    529 	case FBIOGATTR:
    530 		fba = (struct fbgattr *)data;
    531 		fba->real_type = sc->sc_fb.fb_type.fb_type;
    532 		fba->owner = 0;		/* XXX ??? */
    533 		fba->fbtype = sc->sc_fb.fb_type;
    534 		fba->sattr.flags = 0;
    535 		fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
    536 		fba->sattr.dev_specific[0] = -1;
    537 		fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
    538 		fba->emu_types[1] = -1;
    539 		break;
    540 
    541 	case FBIOGETCMAP:
    542 #define p ((struct fbcmap *)data)
    543 		return (bt_getcmap(p, &sc->sc_cmap, 256, 1));
    544 
    545 	case FBIOPUTCMAP:
    546 		/* copy to software map */
    547 		error = bt_putcmap(p, &sc->sc_cmap, 256, 1);
    548 		if (error)
    549 			return (error);
    550 		/* now blast them into the chip */
    551 		/* XXX should use retrace interrupt */
    552 		p9100loadcmap(sc, p->index, p->count);
    553 #undef p
    554 		break;
    555 
    556 	case FBIOGVIDEO:
    557 		*(int *)data = p9100_get_video(sc);
    558 		break;
    559 
    560 	case FBIOSVIDEO:
    561 		p9100_set_video(sc, *(int *)data);
    562 		break;
    563 
    564 /* these are for both FBIOSCURSOR and FBIOGCURSOR */
    565 #define p ((struct fbcursor *)data)
    566 #define pc (&sc->sc_cursor)
    567 
    568 	case FBIOGCURSOR:
    569 		p->set = FB_CUR_SETALL;	/* close enough, anyway */
    570 		p->enable = pc->pc_enable;
    571 		p->pos = pc->pc_pos;
    572 		p->hot = pc->pc_hot;
    573 		p->size = pc->pc_size;
    574 
    575 		if (p->image != NULL) {
    576 			error = copyout(pc->pc_bits, p->image, 0x200);
    577 			if (error)
    578 				return error;
    579 			error = copyout(&pc->pc_bits[0x80], p->mask, 0x200);
    580 			if (error)
    581 				return error;
    582 		}
    583 
    584 		p->cmap.index = 0;
    585 		p->cmap.count = 3;
    586 		if (p->cmap.red != NULL) {
    587 			copyout(pc->red, p->cmap.red, 3);
    588 			copyout(pc->green, p->cmap.green, 3);
    589 			copyout(pc->blue, p->cmap.blue, 3);
    590 		}
    591 		break;
    592 
    593 	case FBIOSCURSOR:
    594 	{
    595 		int count;
    596 		uint32_t image[0x80], mask[0x80];
    597 		uint8_t red[3], green[3], blue[3];
    598 
    599 		v = p->set;
    600 		if (v & FB_CUR_SETCMAP) {
    601 			error = copyin(p->cmap.red, red, 3);
    602 			error |= copyin(p->cmap.green, green, 3);
    603 			error |= copyin(p->cmap.blue, blue, 3);
    604 			if (error)
    605 				return error;
    606 		}
    607 		if (v & FB_CUR_SETSHAPE) {
    608 			if (p->size.x > 64 || p->size.y > 64)
    609 				return EINVAL;
    610 			memset(&mask, 0, 0x200);
    611 			memset(&image, 0, 0x200);
    612 			count = p->size.y * 8;
    613 			error = copyin(p->image, image, count);
    614 			if (error)
    615 				return error;
    616 			error = copyin(p->mask, mask, count);
    617 			if (error)
    618 				return error;
    619 		}
    620 
    621 		/* parameters are OK; do it */
    622 		if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) {
    623 			if (v & FB_CUR_SETCUR)
    624 				pc->pc_enable = p->enable;
    625 			if (v & FB_CUR_SETPOS)
    626 				pc->pc_pos = p->pos;
    627 			if (v & FB_CUR_SETHOT)
    628 				pc->pc_hot = p->hot;
    629 			p9100_set_fbcursor(sc);
    630 		}
    631 
    632 		if (v & FB_CUR_SETCMAP) {
    633 			memcpy(pc->red, red, 3);
    634 			memcpy(pc->green, green, 3);
    635 			memcpy(pc->blue, blue, 3);
    636 			p9100_setcursorcmap(sc);
    637 		}
    638 
    639 		if (v & FB_CUR_SETSHAPE) {
    640 			memcpy(pc->pc_bits, image, 0x200);
    641 			memcpy(&pc->pc_bits[0x80], mask, 0x200);
    642 			p9100_loadcursor(sc);
    643 		}
    644 	}
    645 	break;
    646 
    647 #undef p
    648 #undef cc
    649 
    650 	case FBIOGCURPOS:
    651 		*(struct fbcurpos *)data = sc->sc_cursor.pc_pos;
    652 		break;
    653 
    654 	case FBIOSCURPOS:
    655 		sc->sc_cursor.pc_pos = *(struct fbcurpos *)data;
    656 		p9100_set_fbcursor(sc);
    657 		break;
    658 
    659 	case FBIOGCURMAX:
    660 		/* max cursor size is 64x64 */
    661 		((struct fbcurpos *)data)->x = 64;
    662 		((struct fbcurpos *)data)->y = 64;
    663 		break;
    664 
    665 	default:
    666 		return (ENOTTY);
    667 	}
    668 	return (0);
    669 }
    670 
    671 static uint32_t
    672 p9100_ctl_read_4(struct p9100_softc *sc, bus_size_t off)
    673 {
    674 
    675 	PNOZZ_LATCH(sc, off);
    676 	return bus_space_read_4(sc->sc_bustag, sc->sc_ctl_memh, off);
    677 }
    678 
    679 static void
    680 p9100_ctl_write_4(struct p9100_softc *sc, bus_size_t off, uint32_t v)
    681 {
    682 
    683 	PNOZZ_LATCH(sc, off);
    684 	bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off, v);
    685 }
    686 
    687 /* initialize the drawing engine */
    688 static void
    689 p9100_init_engine(struct p9100_softc *sc)
    690 {
    691 	/* reset clipping rectangles */
    692 	uint32_t rmax = ((sc->sc_width & 0x3fff) << 16) |
    693 	    (sc->sc_height & 0x3fff);
    694 
    695 	sc->sc_last_offset = 0xffffffff;
    696 
    697 	p9100_ctl_write_4(sc, WINDOW_OFFSET, 0);
    698 	p9100_ctl_write_4(sc, WINDOW_MIN, 0);
    699 	p9100_ctl_write_4(sc, WINDOW_MAX, rmax);
    700 	p9100_ctl_write_4(sc, BYTE_CLIP_MIN, 0);
    701 	p9100_ctl_write_4(sc, BYTE_CLIP_MAX, rmax);
    702 	p9100_ctl_write_4(sc, DRAW_MODE, 0);
    703 	p9100_ctl_write_4(sc, PLANE_MASK, 0xffffffff);
    704 	p9100_ctl_write_4(sc, PATTERN0, 0xffffffff);
    705 	p9100_ctl_write_4(sc, PATTERN1, 0xffffffff);
    706 	p9100_ctl_write_4(sc, PATTERN2, 0xffffffff);
    707 	p9100_ctl_write_4(sc, PATTERN3, 0xffffffff);
    708 }
    709 
    710 /* we only need these in the wsdisplay case */
    711 #if NWSDISPLAY > 0
    712 
    713 /* wait until the engine is idle */
    714 static void
    715 p9100_sync(struct p9100_softc *sc)
    716 {
    717 	while((p9100_ctl_read_4(sc, ENGINE_STATUS) &
    718 	    (ENGINE_BUSY | BLITTER_BUSY)) != 0);
    719 }
    720 
    721 static void
    722 p9100_set_color_reg(struct p9100_softc *sc, int reg, int32_t col)
    723 {
    724 	uint32_t out;
    725 
    726 	switch(sc->sc_depth)
    727 	{
    728 		case 1:	/* 8 bit */
    729 			out = (col << 8) | col;
    730 			out |= out << 16;
    731 			break;
    732 		case 2: /* 16 bit */
    733 			out = col | (col << 16);
    734 			break;
    735 		default:
    736 			out = col;
    737 	}
    738 	p9100_ctl_write_4(sc, reg, out);
    739 }
    740 
    741 /* screen-to-screen blit */
    742 static void
    743 p9100_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
    744     int he, uint32_t rop)
    745 {
    746 	struct p9100_softc *sc = cookie;
    747 	uint32_t src, dst, srcw, dstw;
    748 
    749 	sc->sc_last_offset = 0xffffffff;
    750 
    751 	src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
    752 	dst = ((xd & 0x3fff) << 16) | (yd & 0x3fff);
    753 	srcw = (((xs + wi - 1) & 0x3fff) << 16) | ((ys + he - 1) & 0x3fff);
    754 	dstw = (((xd + wi - 1) & 0x3fff) << 16) | ((yd + he - 1) & 0x3fff);
    755 	p9100_sync(sc);
    756 	p9100_ctl_write_4(sc, RASTER_OP, rop);
    757 
    758 	p9100_ctl_write_4(sc, ABS_XY0, src);
    759 
    760 	p9100_ctl_write_4(sc, ABS_XY1, srcw);
    761 	p9100_ctl_write_4(sc, ABS_XY2, dst);
    762 	p9100_ctl_write_4(sc, ABS_XY3, dstw);
    763 	sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_BLIT);
    764 }
    765 
    766 /* solid rectangle fill */
    767 static void
    768 p9100_rectfill(void *cookie, int xs, int ys, int wi, int he, uint32_t col)
    769 {
    770 	struct p9100_softc *sc = cookie;
    771 	uint32_t src, srcw;
    772 
    773 	sc->sc_last_offset = 0xffffffff;
    774 
    775 	src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
    776 	srcw = (((xs + wi) & 0x3fff) << 16) | ((ys + he) & 0x3fff);
    777 	p9100_sync(sc);
    778 	p9100_set_color_reg(sc, FOREGROUND_COLOR, col);
    779 	p9100_set_color_reg(sc, BACKGROUND_COLOR, col);
    780 	p9100_ctl_write_4(sc, RASTER_OP, ROP_PAT);
    781 	p9100_ctl_write_4(sc, COORD_INDEX, 0);
    782 	p9100_ctl_write_4(sc, RECT_RTW_XY, src);
    783 	p9100_ctl_write_4(sc, RECT_RTW_XY, srcw);
    784 	sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_QUAD);
    785 }
    786 
    787 /* setup for mono->colour expansion */
    788 static void
    789 p9100_setup_mono(struct p9100_softc *sc, int x, int y, int wi, int he,
    790     uint32_t fg, uint32_t bg)
    791 {
    792 
    793 	sc->sc_last_offset = 0xffffffff;
    794 
    795 	p9100_sync(sc);
    796 	/*
    797 	 * this doesn't make any sense to me either, but for some reason the
    798 	 * chip applies the foreground colour to 0 pixels
    799 	 */
    800 
    801 	p9100_set_color_reg(sc,FOREGROUND_COLOR,bg);
    802 	p9100_set_color_reg(sc,BACKGROUND_COLOR,fg);
    803 
    804 	p9100_ctl_write_4(sc, RASTER_OP, ROP_SRC);
    805 	p9100_ctl_write_4(sc, ABS_X0, x);
    806 	p9100_ctl_write_4(sc, ABS_XY1, (x << 16) | (y & 0xFFFFL));
    807 	p9100_ctl_write_4(sc, ABS_X2, (x + wi));
    808 	p9100_ctl_write_4(sc, ABS_Y3, he);
    809 	/* now feed the data into the chip */
    810 	sc->sc_mono_width = wi;
    811 }
    812 
    813 /* write monochrome data to the screen through the blitter */
    814 static void
    815 p9100_feed_line(struct p9100_softc *sc, int count, uint8_t *data)
    816 {
    817 	int i;
    818 	uint32_t latch = 0, bork;
    819 	int shift = 24;
    820 	int to_go = sc->sc_mono_width;
    821 
    822 	PNOZZ_LATCH(sc, PIXEL_1);
    823 
    824 	for (i = 0; i < count; i++) {
    825 		bork = data[i];
    826 		latch |= (bork << shift);
    827 		if (shift == 0) {
    828 			/* check how many bits are significant */
    829 			if (to_go > 31) {
    830 				bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
    831 				    (PIXEL_1 + (31 << 2)), latch);
    832 				/*p9100_ctl_write_4(sc, (PIXEL_1 +
    833 				    (31 << 2)), latch);*/
    834 				to_go -= 32;
    835 			} else
    836 			{
    837 				bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
    838 				    (PIXEL_1 + ((to_go - 1) << 2)), latch);
    839 				/*p9100_ctl_write_4(sc, (PIXEL_1 +
    840 				    ((to_go - 1) << 2)), latch);*/
    841 				to_go = 0;
    842 			}
    843 			latch = 0;
    844 			shift = 24;
    845 		} else
    846 			shift -= 8;
    847 		}
    848 	if (shift != 24)
    849 		p9100_ctl_write_4(sc, (PIXEL_1 + ((to_go - 1) << 2)), latch);
    850 }
    851 
    852 static void
    853 p9100_clearscreen(struct p9100_softc *sc)
    854 {
    855 
    856 	p9100_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, sc->sc_bg);
    857 }
    858 #endif /* NWSDISPLAY > 0 */
    859 
    860 static uint8_t
    861 p9100_ramdac_read(struct p9100_softc *sc, bus_size_t off)
    862 {
    863 
    864 	sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
    865 	return ((bus_space_read_4(sc->sc_bustag,
    866 	    sc->sc_ctl_memh, off) >> 16) & 0xff);
    867 }
    868 
    869 static void
    870 p9100_ramdac_write(struct p9100_softc *sc, bus_size_t off, uint8_t v)
    871 {
    872 
    873 	sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
    874 	bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off,
    875 	    ((uint32_t)v) << 16);
    876 }
    877 
    878 static uint8_t
    879 p9100_ramdac_read_ctl(struct p9100_softc *sc, int off)
    880 {
    881 	p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
    882 	p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
    883 	return p9100_ramdac_read(sc, DAC_INDX_DATA);
    884 }
    885 
    886 static void
    887 p9100_ramdac_write_ctl(struct p9100_softc *sc, int off, uint8_t val)
    888 {
    889 	p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
    890 	p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
    891 	p9100_ramdac_write(sc, DAC_INDX_DATA, val);
    892 }
    893 
    894 /*
    895  * Undo the effect of an FBIOSVIDEO that turns the video off.
    896  */
    897 static void
    898 p9100unblank(struct device *dev)
    899 {
    900 	struct p9100_softc *sc = (struct p9100_softc *)dev;
    901 
    902 	p9100_set_video((struct p9100_softc *)dev, 1);
    903 
    904 	/*
    905 	 * Check if we're in terminal mode. If not force the console screen
    906 	 * to front so we can see ddb, panic messages and so on
    907 	 */
    908 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) {
    909 		sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    910 		if (sc->vd.active != &p9100_console_screen) {
    911 			SCREEN_INVISIBLE(sc->vd.active);
    912 			sc->vd.active = &p9100_console_screen;
    913 			SCREEN_VISIBLE(&p9100_console_screen);
    914 		}
    915 		vcons_redraw_screen(&p9100_console_screen);
    916 	}
    917 }
    918 
    919 static void
    920 p9100_set_video(struct p9100_softc *sc, int enable)
    921 {
    922 	u_int32_t v = p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1);
    923 
    924 	if (enable)
    925 		v |= VIDEO_ENABLED;
    926 	else
    927 		v &= ~VIDEO_ENABLED;
    928 	p9100_ctl_write_4(sc, SCRN_RPNT_CTL_1, v);
    929 #if NTCTRL > 0
    930 	/* Turn On/Off the TFT if we know how.
    931 	 */
    932 	tadpole_set_video(enable);
    933 #endif
    934 }
    935 
    936 static int
    937 p9100_get_video(struct p9100_softc *sc)
    938 {
    939 	return (p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1) & VIDEO_ENABLED) != 0;
    940 }
    941 
    942 static void
    943 p9100_power_hook(int why, void *cookie)
    944 {
    945 	struct p9100_softc *sc = cookie;
    946 
    947 	if (why == sc->sc_powerstate)
    948 		return;
    949 
    950 	switch(why)
    951 	{
    952 		case PWR_SUSPEND:
    953 		case PWR_STANDBY:
    954 			sc->sc_video = p9100_get_video(sc);
    955 			p9100_set_video(sc, 0);
    956 			sc->sc_powerstate = why;
    957 			break;
    958 		case PWR_RESUME:
    959 			p9100_set_video(sc, sc->sc_video);
    960 			sc->sc_powerstate = why;
    961 			break;
    962 	}
    963 }
    964 
    965 /*
    966  * Load a subset of the current (new) colormap into the IBM RAMDAC.
    967  */
    968 static void
    969 p9100loadcmap(struct p9100_softc *sc, int start, int ncolors)
    970 {
    971 	int i;
    972 
    973 	sc->sc_last_offset = 0xffffffff;
    974 
    975 	p9100_ramdac_write(sc, DAC_CMAP_WRIDX, start);
    976 
    977 	for (i=0;i<ncolors;i++) {
    978 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    979 		    sc->sc_cmap.cm_map[i + start][0]);
    980 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    981 		    sc->sc_cmap.cm_map[i + start][1]);
    982 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    983 		    sc->sc_cmap.cm_map[i + start][2]);
    984 	}
    985 }
    986 
    987 /*
    988  * Return the address that would map the given device at the given
    989  * offset, allowing for the given protection, or return -1 for error.
    990  */
    991 static paddr_t
    992 p9100mmap(dev_t dev, off_t off, int prot)
    993 {
    994 	struct p9100_softc *sc = pnozz_cd.cd_devs[minor(dev)];
    995 
    996 	if (off & PGOFSET)
    997 		panic("p9100mmap");
    998 	if (off < 0)
    999 		return (-1);
   1000 
   1001 #ifdef PNOZZ_EMUL_CG3
   1002 #define CG3_MMAP_OFFSET	0x04000000
   1003 	/* Make Xsun think we are a CG3 (SUN3COLOR)
   1004 	 */
   1005 	if (off >= CG3_MMAP_OFFSET && off < CG3_MMAP_OFFSET + sc->sc_fb_psize) {
   1006 		off -= CG3_MMAP_OFFSET;
   1007 		return (bus_space_mmap(sc->sc_bustag,
   1008 			sc->sc_fb_paddr,
   1009 			off,
   1010 			prot,
   1011 			BUS_SPACE_MAP_LINEAR));
   1012 	}
   1013 #endif
   1014 
   1015 	if (off >= sc->sc_fb_psize + sc->sc_ctl_psize + sc->sc_cmd_psize)
   1016 		return (-1);
   1017 
   1018 	if (off < sc->sc_fb_psize) {
   1019 		return (bus_space_mmap(sc->sc_bustag,
   1020 			sc->sc_fb_paddr,
   1021 			off,
   1022 			prot,
   1023 			BUS_SPACE_MAP_LINEAR));
   1024 	}
   1025 	off -= sc->sc_fb_psize;
   1026 	if (off < sc->sc_ctl_psize) {
   1027 		return (bus_space_mmap(sc->sc_bustag,
   1028 			sc->sc_ctl_paddr,
   1029 			off,
   1030 			prot,
   1031 			BUS_SPACE_MAP_LINEAR));
   1032 	}
   1033 	off -= sc->sc_ctl_psize;
   1034 
   1035 	return (bus_space_mmap(sc->sc_bustag,
   1036 		sc->sc_cmd_paddr,
   1037 		off,
   1038 		prot,
   1039 		BUS_SPACE_MAP_LINEAR));
   1040 }
   1041 
   1042 /* wscons stuff */
   1043 #if NWSDISPLAY > 0
   1044 
   1045 static void
   1046 p9100_cursor(void *cookie, int on, int row, int col)
   1047 {
   1048 	struct rasops_info *ri = cookie;
   1049 	struct vcons_screen *scr = ri->ri_hw;
   1050 	struct p9100_softc *sc = scr->scr_cookie;
   1051 	int x, y, wi,he;
   1052 
   1053 	wi = ri->ri_font->fontwidth;
   1054 	he = ri->ri_font->fontheight;
   1055 
   1056 	if (ri->ri_flg & RI_CURSOR) {
   1057 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1058 		y = ri->ri_crow * he + ri->ri_yorigin;
   1059 		p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
   1060 		ri->ri_flg &= ~RI_CURSOR;
   1061 	}
   1062 	ri->ri_crow = row;
   1063 	ri->ri_ccol = col;
   1064 	if (on)
   1065 	{
   1066 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1067 		y = ri->ri_crow * he + ri->ri_yorigin;
   1068 		p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
   1069 		ri->ri_flg |= RI_CURSOR;
   1070 	}
   1071 }
   1072 
   1073 #if 0
   1074 static int
   1075 p9100_mapchar(void *cookie, int uni, u_int *index)
   1076 {
   1077 	return 0;
   1078 }
   1079 #endif
   1080 
   1081 static void
   1082 p9100_putchar(void *cookie, int row, int col, u_int c, long attr)
   1083 {
   1084 	struct rasops_info *ri = cookie;
   1085 	struct vcons_screen *scr = ri->ri_hw;
   1086 	struct p9100_softc *sc = scr->scr_cookie;
   1087 
   1088 	int fg, bg, uc, i;
   1089 	uint8_t *data;
   1090 	int x, y, wi,he;
   1091 
   1092 	wi = ri->ri_font->fontwidth;
   1093 	he = ri->ri_font->fontheight;
   1094 
   1095 	if (!CHAR_IN_FONT(c, ri->ri_font))
   1096 		return;
   1097 	bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xff];
   1098 	fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xff];
   1099 	x = ri->ri_xorigin + col * wi;
   1100 	y = ri->ri_yorigin + row * he;
   1101 	if (c == 0x20) {
   1102 		p9100_rectfill(sc, x, y, wi, he, bg);
   1103 	} else {
   1104 		uc = c-ri->ri_font->firstchar;
   1105 		data = (uint8_t *)ri->ri_font->data + uc *
   1106 		    ri->ri_fontscale;
   1107 
   1108 		p9100_setup_mono(sc, x, y, wi, 1, fg, bg);
   1109 		for (i = 0; i < he; i++) {
   1110 			p9100_feed_line(sc, ri->ri_font->stride,
   1111 			    data);
   1112 			data += ri->ri_font->stride;
   1113 		}
   1114 		/*p9100_sync(sc);*/
   1115 	}
   1116 }
   1117 
   1118 /*
   1119  * wsdisplay_accessops
   1120  */
   1121 
   1122 int
   1123 p9100_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
   1124 	struct lwp *l)
   1125 {
   1126 	struct vcons_data *vd = v;
   1127 	struct p9100_softc *sc = vd->cookie;
   1128 	struct wsdisplay_fbinfo *wdf;
   1129 	struct vcons_screen *ms = vd->active;
   1130 
   1131 	switch (cmd) {
   1132 		case WSDISPLAYIO_GTYPE:
   1133 			*(u_int *)data = WSDISPLAY_TYPE_SB_P9100;
   1134 			return 0;
   1135 
   1136 		case FBIOGVIDEO:
   1137 		case WSDISPLAYIO_GVIDEO:
   1138 			*(int *)data = p9100_get_video(sc);
   1139 			return 0;
   1140 
   1141 		case WSDISPLAYIO_SVIDEO:
   1142 		case FBIOSVIDEO:
   1143 			p9100_set_video(sc, *(int *)data);
   1144 			return 0;
   1145 
   1146 		case WSDISPLAYIO_GINFO:
   1147 			wdf = (void *)data;
   1148 			wdf->height = ms->scr_ri.ri_height;
   1149 			wdf->width = ms->scr_ri.ri_width;
   1150 			wdf->depth = ms->scr_ri.ri_depth;
   1151 			wdf->cmsize = 256;
   1152 			return 0;
   1153 
   1154 		case WSDISPLAYIO_GETCMAP:
   1155 			return p9100_getcmap(sc, (struct wsdisplay_cmap *)data);
   1156 
   1157 		case WSDISPLAYIO_PUTCMAP:
   1158 			return p9100_putcmap(sc, (struct wsdisplay_cmap *)data);
   1159 
   1160 		case WSDISPLAYIO_SMODE:
   1161 			{
   1162 				int new_mode = *(int*)data;
   1163 				if (new_mode != sc->sc_mode)
   1164 				{
   1165 					sc->sc_mode = new_mode;
   1166 					if (new_mode == WSDISPLAYIO_MODE_EMUL)
   1167 					{
   1168 						p9100_init_engine(sc);
   1169 						p9100loadcmap(sc, 0, 256);
   1170 						p9100_clearscreen(sc);
   1171 						vcons_redraw_screen(ms);
   1172 					}
   1173 				}
   1174 			}
   1175 	}
   1176 	return EPASSTHROUGH;
   1177 }
   1178 
   1179 static paddr_t
   1180 p9100_mmap(void *v, void *vs, off_t offset, int prot)
   1181 {
   1182 	struct vcons_data *vd = v;
   1183 	struct p9100_softc *sc = vd->cookie;
   1184 	paddr_t pa;
   1185 
   1186 	/* 'regular' framebuffer mmap()ing */
   1187 	if (offset < sc->sc_fb_psize) {
   1188 		pa = bus_space_mmap(sc->sc_bustag, sc->sc_fb_paddr + offset, 0,
   1189 		    prot, BUS_SPACE_MAP_LINEAR);
   1190 		return pa;
   1191 	}
   1192 
   1193 	if ((offset >= sc->sc_fb_paddr) && (offset < (sc->sc_fb_paddr +
   1194 	    sc->sc_fb_psize))) {
   1195 		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
   1196 		    BUS_SPACE_MAP_LINEAR);
   1197 		return pa;
   1198 	}
   1199 
   1200 	if ((offset >= sc->sc_ctl_paddr) && (offset < (sc->sc_ctl_paddr +
   1201 	    sc->sc_ctl_psize))) {
   1202 		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
   1203 		    BUS_SPACE_MAP_LINEAR);
   1204 		return pa;
   1205 	}
   1206 
   1207 	return -1;
   1208 }
   1209 
   1210 static void
   1211 p9100_init_screen(void *cookie, struct vcons_screen *scr,
   1212     int existing, long *defattr)
   1213 {
   1214 	struct p9100_softc *sc = cookie;
   1215 	struct rasops_info *ri = &scr->scr_ri;
   1216 
   1217 	ri->ri_depth = sc->sc_depth << 3;
   1218 	ri->ri_width = sc->sc_width;
   1219 	ri->ri_height = sc->sc_height;
   1220 	ri->ri_stride = sc->sc_stride;
   1221 	ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
   1222 
   1223 	ri->ri_bits = bus_space_vaddr(sc->sc_bustag, sc->sc_fb_memh);
   1224 
   1225 #ifdef DEBUG_P9100
   1226 	printf("addr: %08lx\n",(ulong)ri->ri_bits);
   1227 #endif
   1228 	rasops_init(ri, sc->sc_height/8, sc->sc_width/8);
   1229 	ri->ri_caps = WSSCREEN_WSCOLORS;
   1230 	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
   1231 		    sc->sc_width / ri->ri_font->fontwidth);
   1232 
   1233 	/* enable acceleration */
   1234 	ri->ri_ops.cursor    = p9100_cursor;
   1235 	ri->ri_ops.copyrows  = p9100_copyrows;
   1236 	ri->ri_ops.eraserows = p9100_eraserows;
   1237 	ri->ri_ops.copycols  = p9100_copycols;
   1238 	ri->ri_ops.erasecols = p9100_erasecols;
   1239 	ri->ri_ops.putchar   = p9100_putchar;
   1240 	ri->ri_ops.allocattr = p9100_allocattr;
   1241 }
   1242 
   1243 static int
   1244 p9100_putcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
   1245 {
   1246 	u_int index = cm->index;
   1247 	u_int count = cm->count;
   1248 	int i, error;
   1249 	u_char rbuf[256], gbuf[256], bbuf[256];
   1250 	u_char *r, *g, *b;
   1251 
   1252 	if (cm->index >= 256 || cm->count > 256 ||
   1253 	    (cm->index + cm->count) > 256)
   1254 		return EINVAL;
   1255 	error = copyin(cm->red, &rbuf[index], count);
   1256 	if (error)
   1257 		return error;
   1258 	error = copyin(cm->green, &gbuf[index], count);
   1259 	if (error)
   1260 		return error;
   1261 	error = copyin(cm->blue, &bbuf[index], count);
   1262 	if (error)
   1263 		return error;
   1264 
   1265 	r = &rbuf[index];
   1266 	g = &gbuf[index];
   1267 	b = &bbuf[index];
   1268 
   1269 	for (i = 0; i < count; i++) {
   1270 		sc->sc_cmap.cm_map[index][0] = *r;
   1271 		sc->sc_cmap.cm_map[index][1] = *g;
   1272 		sc->sc_cmap.cm_map[index][2] = *b;
   1273 		index++;
   1274 		r++, g++, b++;
   1275 	}
   1276 	p9100loadcmap(sc, 0, 256);
   1277 	return 0;
   1278 }
   1279 
   1280 static int
   1281 p9100_getcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
   1282 {
   1283 	u_int index = cm->index;
   1284 	u_int count = cm->count;
   1285 	int error, i;
   1286 	uint8_t red[256], green[256], blue[256];
   1287 
   1288 	if (index >= 255 || count > 256 || index + count > 256)
   1289 		return EINVAL;
   1290 
   1291 	i = index;
   1292 	while (i < (index + count)) {
   1293 		red[i] = sc->sc_cmap.cm_map[i][0];
   1294 		green[i] = sc->sc_cmap.cm_map[i][1];
   1295 		blue[i] = sc->sc_cmap.cm_map[i][2];
   1296 		i++;
   1297 	}
   1298 	error = copyout(&red[index],   cm->red,   count);
   1299 	if (error)
   1300 		return error;
   1301 	error = copyout(&green[index], cm->green, count);
   1302 	if (error)
   1303 		return error;
   1304 	error = copyout(&blue[index],  cm->blue,  count);
   1305 	if (error)
   1306 		return error;
   1307 
   1308 	return 0;
   1309 }
   1310 
   1311 static void
   1312 p9100_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1313 {
   1314 	struct rasops_info *ri = cookie;
   1315 	struct vcons_screen *scr = ri->ri_hw;
   1316 	int32_t xs, xd, y, width, height;
   1317 
   1318 	xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   1319 	xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   1320 	y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1321 	width = ri->ri_font->fontwidth * ncols;
   1322 	height = ri->ri_font->fontheight;
   1323 	p9100_bitblt(scr->scr_cookie, xs, y, xd, y, width, height, ROP_SRC);
   1324 }
   1325 
   1326 static void
   1327 p9100_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
   1328 {
   1329 	struct rasops_info *ri = cookie;
   1330 	struct vcons_screen *scr = ri->ri_hw;
   1331 	int32_t x, y, width, height, bg;
   1332 
   1333 	x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   1334 	y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1335 	width = ri->ri_font->fontwidth * ncols;
   1336 	height = ri->ri_font->fontheight;
   1337 	bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
   1338 	p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
   1339 }
   1340 
   1341 static void
   1342 p9100_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   1343 {
   1344 	struct rasops_info *ri = cookie;
   1345 	struct vcons_screen *scr = ri->ri_hw;
   1346 	int32_t x, ys, yd, width, height;
   1347 
   1348 	x = ri->ri_xorigin;
   1349 	ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   1350 	yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   1351 	width = ri->ri_emuwidth;
   1352 	height = ri->ri_font->fontheight * nrows;
   1353 	p9100_bitblt(scr->scr_cookie, x, ys, x, yd, width, height, ROP_SRC);
   1354 }
   1355 
   1356 static void
   1357 p9100_eraserows(void *cookie, int row, int nrows, long fillattr)
   1358 {
   1359 	struct rasops_info *ri = cookie;
   1360 	struct vcons_screen *scr = ri->ri_hw;
   1361 	int32_t x, y, width, height, bg;
   1362 
   1363 	if ((row == 0) && (nrows == ri->ri_rows)) {
   1364 		x = y = 0;
   1365 		width = ri->ri_width;
   1366 		height = ri->ri_height;
   1367 	} else {
   1368 		x = ri->ri_xorigin;
   1369 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1370 		width = ri->ri_emuwidth;
   1371 		height = ri->ri_font->fontheight * nrows;
   1372 	}
   1373 	bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
   1374 	p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
   1375 }
   1376 
   1377 
   1378 static int
   1379 p9100_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
   1380 {
   1381 	if ((fg == 0) && (bg == 0))
   1382 	{
   1383 		fg = WS_DEFAULT_FG;
   1384 		bg = WS_DEFAULT_BG;
   1385 	}
   1386 	if (flags & WSATTR_REVERSE) {
   1387 		*attrp = (bg & 0xff) << 24 | (fg & 0xff) << 16 |
   1388 		    (flags & 0xff) << 8;
   1389 	} else
   1390 		*attrp = (fg & 0xff) << 24 | (bg & 0xff) << 16 |
   1391 		    (flags & 0xff) << 8;
   1392 	return 0;
   1393 }
   1394 
   1395 #if 0
   1396 static int
   1397 p9100_load_font(void *v, void *cookie, struct wsdisplay_font *data)
   1398 {
   1399 
   1400 	return 0;
   1401 }
   1402 #endif
   1403 
   1404 #endif /* NWSDISPLAY > 0 */
   1405 
   1406 static int
   1407 p9100_intr(void *arg)
   1408 {
   1409 	/*p9100_softc *sc=arg;
   1410 	printf(".");*/
   1411 	return 1;
   1412 }
   1413 
   1414 static void
   1415 p9100_init_cursor(struct p9100_softc *sc)
   1416 {
   1417 
   1418 	memset(&sc->sc_cursor, 0, sizeof(struct pnozz_cursor));
   1419 	sc->sc_cursor.pc_size.x = 64;
   1420 	sc->sc_cursor.pc_size.y = 64;
   1421 
   1422 }
   1423 
   1424 static void
   1425 p9100_set_fbcursor(struct p9100_softc *sc)
   1426 {
   1427 #ifdef PNOZZ_PARANOID
   1428 	int s;
   1429 
   1430 	s = splhigh();	/* just in case... */
   1431 #endif
   1432 	sc->sc_last_offset = 0xffffffff;
   1433 
   1434 	/* set position and hotspot */
   1435 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1436 	p9100_ramdac_write(sc, DAC_INDX_HI, 0);
   1437 	p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_CTL);
   1438 	if (sc->sc_cursor.pc_enable) {
   1439 		p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_X11 |
   1440 		    DAC_CURSOR_64);
   1441 	} else
   1442 		p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_OFF);
   1443 	/* next two registers - x low, high, y low, high */
   1444 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.x & 0xff);
   1445 	p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.x >> 8) &
   1446 	    0xff);
   1447 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.y & 0xff);
   1448 	p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.y >> 8) &
   1449 	    0xff);
   1450 	/* hotspot */
   1451 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.x & 0xff);
   1452 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.y & 0xff);
   1453 
   1454 #ifdef PNOZZ_PARANOID
   1455 	splx(s);
   1456 #endif
   1457 
   1458 }
   1459 
   1460 static void
   1461 p9100_setcursorcmap(struct p9100_softc *sc)
   1462 {
   1463 	int i;
   1464 
   1465 #ifdef PNOZZ_PARANOID
   1466 	int s;
   1467 	s = splhigh();	/* just in case... */
   1468 #endif
   1469 	sc->sc_last_offset = 0xffffffff;
   1470 
   1471 	/* set cursor colours */
   1472 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1473 	p9100_ramdac_write(sc, DAC_INDX_HI, 0);
   1474 	p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_COL_1);
   1475 
   1476 	for (i = 0; i < 3; i++) {
   1477 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.red[i]);
   1478 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.green[i]);
   1479 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.blue[i]);
   1480 	}
   1481 
   1482 #ifdef PNOZZ_PARANOID
   1483 	splx(s);
   1484 #endif
   1485 }
   1486 
   1487 static void
   1488 p9100_loadcursor(struct p9100_softc *sc)
   1489 {
   1490 	uint32_t *image, *mask;
   1491 	uint32_t bit, bbit, im, ma;
   1492 	int i, j, k;
   1493 	uint8_t latch1, latch2;
   1494 
   1495 #ifdef PNOZZ_PARANOID
   1496 	int s;
   1497 	s = splhigh();	/* just in case... */
   1498 #endif
   1499 	sc->sc_last_offset = 0xffffffff;
   1500 
   1501 	/* set cursor shape */
   1502 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1503 	p9100_ramdac_write(sc, DAC_INDX_HI, 1);
   1504 	p9100_ramdac_write(sc, DAC_INDX_LO, 0);
   1505 
   1506 	image = sc->sc_cursor.pc_bits;
   1507 	mask = &sc->sc_cursor.pc_bits[0x80];
   1508 
   1509 	for (i = 0; i < 0x80; i++) {
   1510 		bit = 0x80000000;
   1511 		im = image[i];
   1512 		ma = mask[i];
   1513 		for (k = 0; k < 4; k++) {
   1514 			bbit = 0x1;
   1515 			latch1 = 0;
   1516 			for (j = 0; j < 4; j++) {
   1517 				if (im & bit)
   1518 					latch1 |= bbit;
   1519 				bbit <<= 1;
   1520 				if (ma & bit)
   1521 					latch1 |= bbit;
   1522 				bbit <<= 1;
   1523 				bit >>= 1;
   1524 			}
   1525 			bbit = 0x1;
   1526 			latch2 = 0;
   1527 			for (j = 0; j < 4; j++) {
   1528 				if (im & bit)
   1529 					latch2 |= bbit;
   1530 				bbit <<= 1;
   1531 				if (ma & bit)
   1532 					latch2 |= bbit;
   1533 				bbit <<= 1;
   1534 				bit >>= 1;
   1535 			}
   1536 			p9100_ramdac_write(sc, DAC_INDX_DATA, latch1);
   1537 			p9100_ramdac_write(sc, DAC_INDX_DATA, latch2);
   1538 		}
   1539 	}
   1540 #ifdef DEBUG_CURSOR
   1541 	printf("image:\n");
   1542 	for (i=0;i<0x80;i+=2)
   1543 		printf("%08x %08x\n", image[i], image[i+1]);
   1544 	printf("mask:\n");
   1545 	for (i=0;i<0x80;i+=2)
   1546 		printf("%08x %08x\n", mask[i], mask[i+1]);
   1547 #endif
   1548 #ifdef PNOZZ_PARANOID
   1549 	splx(s);
   1550 #endif
   1551 }
   1552 
   1553 static void
   1554 p9100_set_extvga(void *cookie, int status)
   1555 {
   1556 	struct p9100_softc *sc = cookie;
   1557 #ifdef PNOZZ_PARANOID
   1558 	int s;
   1559 
   1560 	s = splhigh();
   1561 #endif
   1562 #ifdef DEBUG
   1563 	printf("%s: external VGA %s\n", sc->sc_dev.dv_xname,
   1564 	    status ? "on" : "off");
   1565 #endif
   1566 	sc->sc_last_offset = 0xffffffff;
   1567 
   1568 	if (status) {
   1569 		p9100_ramdac_write_ctl(sc, DAC_POWER,
   1570 		    p9100_ramdac_read_ctl(sc, DAC_POWER) &
   1571 		    ~DAC_POWER_IPWR_DISABLE);
   1572 	} else {
   1573 		p9100_ramdac_write_ctl(sc, DAC_POWER,
   1574 		    p9100_ramdac_read_ctl(sc, DAC_POWER) |
   1575 		    DAC_POWER_IPWR_DISABLE);
   1576 	}
   1577 #ifdef PNOZZ_PARANOID
   1578 	splx(s);
   1579 #endif
   1580 }
   1581