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p9100.c revision 1.36.16.1
      1 /*	$NetBSD: p9100.c,v 1.36.16.1 2008/06/02 13:23:50 mjf 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * color display (p9100) driver.
     34  *
     35  * Does not handle interrupts, even though they can occur.
     36  *
     37  * XXX should defer colormap updates to vertical retrace interrupts
     38  */
     39 
     40 #include <sys/cdefs.h>
     41 __KERNEL_RCSID(0, "$NetBSD: p9100.c,v 1.36.16.1 2008/06/02 13:23:50 mjf Exp $");
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/buf.h>
     46 #include <sys/device.h>
     47 #include <sys/ioctl.h>
     48 #include <sys/malloc.h>
     49 #include <sys/mman.h>
     50 #include <sys/tty.h>
     51 #include <sys/conf.h>
     52 
     53 #include <sys/bus.h>
     54 #include <machine/autoconf.h>
     55 
     56 #include <dev/sun/fbio.h>
     57 #include <dev/sun/fbvar.h>
     58 #include <dev/sun/btreg.h>
     59 #include <dev/sun/btvar.h>
     60 
     61 #include <dev/sbus/p9100reg.h>
     62 
     63 #include <dev/sbus/sbusvar.h>
     64 
     65 /*#include <dev/wscons/wsdisplayvar.h>*/
     66 #include <dev/wscons/wsconsio.h>
     67 #include <dev/wsfont/wsfont.h>
     68 #include <dev/rasops/rasops.h>
     69 
     70 #include <dev/wscons/wsdisplay_vconsvar.h>
     71 
     72 #include "opt_wsemul.h"
     73 #include "rasops_glue.h"
     74 
     75 #include "tctrl.h"
     76 #if NTCTRL > 0
     77 #include <machine/tctrl.h>
     78 #include <sparc/dev/tctrlvar.h>/*XXX*/
     79 #endif
     80 
     81 struct pnozz_cursor {
     82 	short	pc_enable;		/* cursor is enabled */
     83 	struct	fbcurpos pc_pos;	/* position */
     84 	struct	fbcurpos pc_hot;	/* hot-spot */
     85 	struct	fbcurpos pc_size;	/* size of mask & image fields */
     86 	uint32_t pc_bits[0x100];	/* space for mask & image bits */
     87 	unsigned char red[3], green[3];
     88 	unsigned char blue[3];		/* cursor palette */
     89 };
     90 
     91 /* per-display variables */
     92 struct p9100_softc {
     93 	struct device	sc_dev;		/* base device */
     94 	struct sbusdev	sc_sd;		/* sbus device */
     95 	struct fbdevice	sc_fb;		/* frame buffer device */
     96 
     97 	bus_space_tag_t	sc_bustag;
     98 
     99 	bus_addr_t	sc_ctl_paddr;	/* phys address description */
    100 	bus_size_t	sc_ctl_psize;	/*   for device mmap() */
    101 	bus_space_handle_t sc_ctl_memh;	/*   bus space handle */
    102 
    103 	bus_addr_t	sc_cmd_paddr;	/* phys address description */
    104 	bus_size_t	sc_cmd_psize;	/*   for device mmap() */
    105 	bus_space_handle_t sc_cmd_memh;	/*   bus space handle */
    106 
    107 	bus_addr_t	sc_fb_paddr;	/* phys address description */
    108 	bus_size_t	sc_fb_psize;	/*   for device mmap() */
    109 	bus_space_handle_t sc_fb_memh;	/*   bus space handle */
    110 
    111 	volatile uint32_t sc_junk;
    112 	uint32_t sc_mono_width;	/* for setup_mono */
    113 
    114 	uint32_t sc_width;
    115 	uint32_t sc_height;	/* panel width / height */
    116 	uint32_t sc_stride;
    117 	uint32_t sc_depth;
    118 	union	bt_cmap sc_cmap;	/* Brooktree color map */
    119 
    120 	struct pnozz_cursor sc_cursor;
    121 
    122 	int sc_mode;
    123 	int sc_video, sc_powerstate;
    124 	uint32_t sc_bg;
    125 	volatile uint32_t sc_last_offset;
    126 	struct vcons_data vd;
    127 };
    128 
    129 
    130 static struct vcons_screen p9100_console_screen;
    131 
    132 extern const u_char rasops_cmap[768];
    133 
    134 struct wsscreen_descr p9100_defscreendesc = {
    135 	"default",
    136 	0, 0,
    137 	NULL,
    138 	8, 16,
    139 	WSSCREEN_WSCOLORS,
    140 };
    141 
    142 const struct wsscreen_descr *_p9100_scrlist[] = {
    143 	&p9100_defscreendesc,
    144 	/* XXX other formats, graphics screen? */
    145 };
    146 
    147 struct wsscreen_list p9100_screenlist = {
    148 	sizeof(_p9100_scrlist) / sizeof(struct wsscreen_descr *), _p9100_scrlist
    149 };
    150 
    151 /* autoconfiguration driver */
    152 static int	p9100_sbus_match(struct device *, struct cfdata *, void *);
    153 static void	p9100_sbus_attach(struct device *, struct device *, void *);
    154 
    155 static void	p9100unblank(struct device *);
    156 static void	p9100_shutdown(void *);
    157 
    158 CFATTACH_DECL(pnozz, sizeof(struct p9100_softc),
    159     p9100_sbus_match, p9100_sbus_attach, NULL, NULL);
    160 
    161 extern struct cfdriver pnozz_cd;
    162 
    163 static dev_type_open(p9100open);
    164 static dev_type_ioctl(p9100ioctl);
    165 static dev_type_mmap(p9100mmap);
    166 
    167 const struct cdevsw pnozz_cdevsw = {
    168 	p9100open, nullclose, noread, nowrite, p9100ioctl,
    169 	nostop, notty, nopoll, p9100mmap, nokqfilter,
    170 };
    171 
    172 /* frame buffer generic driver */
    173 static struct fbdriver p9100fbdriver = {
    174 	p9100unblank, p9100open, nullclose, p9100ioctl, nopoll,
    175 	p9100mmap, nokqfilter
    176 };
    177 
    178 static void	p9100loadcmap(struct p9100_softc *, int, int);
    179 static void	p9100_set_video(struct p9100_softc *, int);
    180 static int	p9100_get_video(struct p9100_softc *);
    181 static uint32_t p9100_ctl_read_4(struct p9100_softc *, bus_size_t);
    182 static void	p9100_ctl_write_4(struct p9100_softc *, bus_size_t, uint32_t);
    183 static uint8_t	p9100_ramdac_read(struct p9100_softc *, bus_size_t);
    184 static void	p9100_ramdac_write(struct p9100_softc *, bus_size_t, uint8_t);
    185 
    186 static uint8_t	p9100_ramdac_read_ctl(struct p9100_softc *, int);
    187 static void	p9100_ramdac_write_ctl(struct p9100_softc *, int, uint8_t);
    188 
    189 static void 	p9100_init_engine(struct p9100_softc *);
    190 
    191 #if NWSDISPLAY > 0
    192 static void	p9100_sync(struct p9100_softc *);
    193 static void	p9100_bitblt(void *, int, int, int, int, int, int, uint32_t);
    194 static void 	p9100_rectfill(void *, int, int, int, int, uint32_t);
    195 static void	p9100_clearscreen(struct p9100_softc *);
    196 
    197 static void	p9100_setup_mono(struct p9100_softc *, int, int, int, int,
    198 		    uint32_t, uint32_t);
    199 static void	p9100_feed_line(struct p9100_softc *, int, uint8_t *);
    200 static void	p9100_set_color_reg(struct p9100_softc *, int, int32_t);
    201 
    202 static void	p9100_copycols(void *, int, int, int, int);
    203 static void	p9100_erasecols(void *, int, int, int, long);
    204 static void	p9100_copyrows(void *, int, int, int);
    205 static void	p9100_eraserows(void *, int, int, long);
    206 /*static int	p9100_mapchar(void *, int, u_int *);*/
    207 static void	p9100_putchar(void *, int, int, u_int, long);
    208 static void	p9100_cursor(void *, int, int, int);
    209 static int	p9100_allocattr(void *, int, int, int, long *);
    210 
    211 /*static void	p9100_scroll(void *, void *, int);*/
    212 
    213 static int	p9100_putcmap(struct p9100_softc *, struct wsdisplay_cmap *);
    214 static int 	p9100_getcmap(struct p9100_softc *, struct wsdisplay_cmap *);
    215 static int	p9100_ioctl(void *, void *, u_long, void *, int, struct lwp *);
    216 static paddr_t	p9100_mmap(void *, void *, off_t, int);
    217 
    218 /*static int	p9100_load_font(void *, void *, struct wsdisplay_font *);*/
    219 
    220 static void	p9100_init_screen(void *, struct vcons_screen *, int,
    221 	    long *);
    222 #endif
    223 
    224 static void	p9100_init_cursor(struct p9100_softc *);
    225 
    226 static void	p9100_set_fbcursor(struct p9100_softc *);
    227 static void	p9100_setcursorcmap(struct p9100_softc *);
    228 static void	p9100_loadcursor(struct p9100_softc *);
    229 
    230 static int	p9100_intr(void *);
    231 
    232 /* power management stuff */
    233 static void p9100_power_hook(int, void *);
    234 
    235 static void p9100_set_extvga(void *, int);
    236 
    237 #if NWSDISPLAY > 0
    238 struct wsdisplay_accessops p9100_accessops = {
    239 	p9100_ioctl,
    240 	p9100_mmap,
    241 	NULL,	/* vcons_alloc_screen */
    242 	NULL,	/* vcons_free_screen */
    243 	NULL,	/* vcons_show_screen */
    244 	NULL,	/* load_font */
    245 	NULL,	/* polls */
    246 	NULL,	/* scroll */
    247 };
    248 #endif
    249 
    250 #define PNOZZ_LATCH(sc, off) if(sc->sc_last_offset == (off & 0xffffff80)) { \
    251 		sc->sc_junk = bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, \
    252 		    off); \
    253 		sc->sc_last_offset = off & 0xffffff80; }
    254 
    255 /*
    256  * Match a p9100.
    257  */
    258 static int
    259 p9100_sbus_match(struct device *parent, struct cfdata *cf, void *aux)
    260 {
    261 	struct sbus_attach_args *sa = aux;
    262 
    263 	return (strcmp("p9100", sa->sa_name) == 0);
    264 }
    265 
    266 
    267 /*
    268  * Attach a display.  We need to notice if it is the console, too.
    269  */
    270 static void
    271 p9100_sbus_attach(struct device *parent, struct device *self, void *args)
    272 {
    273 	struct p9100_softc *sc = (struct p9100_softc *)self;
    274 	struct sbus_attach_args *sa = args;
    275 	struct fbdevice *fb = &sc->sc_fb;
    276 	int isconsole;
    277 	int node;
    278 	int i, j;
    279 	uint8_t ver;
    280 
    281 #if NWSDISPLAY > 0
    282 	struct wsemuldisplaydev_attach_args aa;
    283 	struct rasops_info *ri;
    284 	unsigned long defattr;
    285 #endif
    286 
    287 	sc->sc_last_offset = 0xffffffff;
    288 
    289 	/* Remember cookies for p9100_mmap() */
    290 	sc->sc_bustag = sa->sa_bustag;
    291 	sc->sc_ctl_paddr = sbus_bus_addr(sa->sa_bustag,
    292 		sa->sa_reg[0].oa_space, sa->sa_reg[0].oa_base);
    293 	sc->sc_ctl_psize = 0x8000;/*(bus_size_t)sa->sa_reg[0].oa_size;*/
    294 
    295 	sc->sc_cmd_paddr = sbus_bus_addr(sa->sa_bustag,
    296 		sa->sa_reg[1].oa_space, sa->sa_reg[1].oa_base);
    297 	sc->sc_cmd_psize = (bus_size_t)sa->sa_reg[1].oa_size;
    298 
    299 	sc->sc_fb_paddr = sbus_bus_addr(sa->sa_bustag,
    300 		sa->sa_reg[2].oa_space, sa->sa_reg[2].oa_base);
    301 	sc->sc_fb_psize = (bus_size_t)sa->sa_reg[2].oa_size;
    302 
    303 	fb->fb_driver = &p9100fbdriver;
    304 	fb->fb_device = &sc->sc_dev;
    305 	fb->fb_flags = device_cfdata(&sc->sc_dev)->cf_flags & FB_USERMASK;
    306 #ifdef PNOZZ_EMUL_CG3
    307 	fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
    308 #else
    309 	fb->fb_type.fb_type = FBTYPE_P9100;
    310 #endif
    311 	fb->fb_pixels = NULL;
    312 
    313 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    314 
    315 	node = sa->sa_node;
    316 	isconsole = fb_is_console(node);
    317 	if (!isconsole) {
    318 		aprint_normal("\n");
    319 		aprint_error_dev(self, "fatal error: PROM didn't configure device\n");
    320 		return;
    321 	}
    322 
    323 	/*
    324 	 * When the ROM has mapped in a p9100 display, the address
    325 	 * maps only the video RAM, so in any case we have to map the
    326 	 * registers ourselves.  We only need the video RAM if we are
    327 	 * going to print characters via rconsole.
    328 	 */
    329 	if (sbus_bus_map(sc->sc_bustag,
    330 			 sa->sa_reg[0].oa_space,
    331 			 sa->sa_reg[0].oa_base,
    332 			 /*
    333 			  * XXX for some reason the SBus resources don't cover
    334 			  * all registers, so we just map what we need
    335 			  */
    336 			 /*sc->sc_ctl_psize*/ 0x8000,
    337 			 /*BUS_SPACE_MAP_LINEAR*/0, &sc->sc_ctl_memh) != 0) {
    338 		aprint_error_dev(self, "cannot map control registers\n");
    339 		return;
    340 	}
    341 
    342 	if (sa->sa_npromvaddrs != 0)
    343 		fb->fb_pixels = (void *)sa->sa_promvaddrs[0];
    344 
    345 	if (fb->fb_pixels == NULL) {
    346 		if (sbus_bus_map(sc->sc_bustag,
    347 				sa->sa_reg[2].oa_space,
    348 				sa->sa_reg[2].oa_base,
    349 				sc->sc_fb_psize,
    350 				BUS_SPACE_MAP_LINEAR, &sc->sc_fb_memh) != 0) {
    351 			aprint_error_dev(self, "cannot map framebuffer\n");
    352 			return;
    353 		}
    354 		fb->fb_pixels = (char *)sc->sc_fb_memh;
    355 	} else {
    356 		sc->sc_fb_memh = (bus_space_handle_t) fb->fb_pixels;
    357 	}
    358 
    359 	i = p9100_ctl_read_4(sc, 0x0004);
    360 	switch ((i >> 26) & 7) {
    361 	    case 5: fb->fb_type.fb_depth = 32; break;
    362 	    case 7: fb->fb_type.fb_depth = 24; break;
    363 	    case 3: fb->fb_type.fb_depth = 16; break;
    364 	    case 2: fb->fb_type.fb_depth = 8; break;
    365 	    default: {
    366 		panic("pnozz: can't determine screen depth (0x%02x)", i);
    367 	    }
    368 	}
    369 	sc->sc_depth = (fb->fb_type.fb_depth >> 3);
    370 
    371 	/* XXX for some reason I get a kernel trap with this */
    372 	sc->sc_width = prom_getpropint(node, "width", 800);
    373 	sc->sc_height = prom_getpropint(node, "height", 600);
    374 
    375 	sc->sc_stride = prom_getpropint(node, "linebytes", sc->sc_width *
    376 	    (fb->fb_type.fb_depth >> 3));
    377 
    378 	/* check the RAMDAC */
    379 	ver = p9100_ramdac_read_ctl(sc, DAC_VERSION);
    380 
    381 	p9100_init_engine(sc);
    382 
    383 	fb_setsize_obp(fb, fb->fb_type.fb_depth, sc->sc_width, sc->sc_height,
    384 	    node);
    385 
    386 	sbus_establish(&sc->sc_sd, &sc->sc_dev);
    387 	bus_intr_establish(sc->sc_bustag, sa->sa_pri, IPL_BIO,
    388 	    p9100_intr, sc);
    389 
    390 	fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
    391 	printf(": rev %d / %x, %dx%d, depth %d mem %x",
    392 	       (i & 7), ver, fb->fb_type.fb_width, fb->fb_type.fb_height,
    393 	       fb->fb_type.fb_depth, (unsigned int)sc->sc_fb_psize);
    394 
    395 	fb->fb_type.fb_cmsize = prom_getpropint(node, "cmsize", 256);
    396 	if ((1 << fb->fb_type.fb_depth) != fb->fb_type.fb_cmsize)
    397 		printf(", %d entry colormap", fb->fb_type.fb_cmsize);
    398 
    399 	/* Initialize the default color map. */
    400 	/*bt_initcmap(&sc->sc_cmap, 256);*/
    401 	j = 0;
    402 	for (i = 0; i < 256; i++) {
    403 		sc->sc_cmap.cm_map[i][0] = rasops_cmap[j];
    404 		j++;
    405 		sc->sc_cmap.cm_map[i][1] = rasops_cmap[j];
    406 		j++;
    407 		sc->sc_cmap.cm_map[i][2] = rasops_cmap[j];
    408 		j++;
    409 	}
    410 	p9100loadcmap(sc, 0, 256);
    411 
    412 	/* make sure we are not blanked */
    413 	if (isconsole)
    414 		p9100_set_video(sc, 1);
    415 
    416 	if (shutdownhook_establish(p9100_shutdown, sc) == NULL) {
    417 		panic("%s: could not establish shutdown hook",
    418 		      device_xname(&sc->sc_dev));
    419 	}
    420 
    421 	if (isconsole) {
    422 		printf(" (console)\n");
    423 #ifdef RASTERCONSOLE
    424 		/*p9100loadcmap(sc, 255, 1);*/
    425 		fbrcons_init(fb);
    426 #endif
    427 	} else
    428 		printf("\n");
    429 
    430 #if NWSDISPLAY > 0
    431 	wsfont_init();
    432 
    433 	vcons_init(&sc->vd, sc, &p9100_defscreendesc, &p9100_accessops);
    434 	sc->vd.init_screen = p9100_init_screen;
    435 
    436 	vcons_init_screen(&sc->vd, &p9100_console_screen, 1, &defattr);
    437 	p9100_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    438 
    439 	sc->sc_bg = (defattr >> 16) & 0xff;
    440 	p9100_clearscreen(sc);
    441 
    442 	ri = &p9100_console_screen.scr_ri;
    443 
    444 	p9100_defscreendesc.nrows = ri->ri_rows;
    445 	p9100_defscreendesc.ncols = ri->ri_cols;
    446 	p9100_defscreendesc.textops = &ri->ri_ops;
    447 	p9100_defscreendesc.capabilities = ri->ri_caps;
    448 
    449 	if(isconsole) {
    450 		wsdisplay_cnattach(&p9100_defscreendesc, ri, 0, 0, defattr);
    451 	}
    452 
    453 	aa.console = isconsole;
    454 	aa.scrdata = &p9100_screenlist;
    455 	aa.accessops = &p9100_accessops;
    456 	aa.accesscookie = &sc->vd;
    457 
    458 	config_found(self, &aa, wsemuldisplaydevprint);
    459 #endif
    460 	/* cursor sprite handling */
    461 	p9100_init_cursor(sc);
    462 
    463 	/* attach the fb */
    464 	fb_attach(fb, isconsole);
    465 
    466 	/* register with power management */
    467 	sc->sc_video = 1;
    468 	sc->sc_powerstate = PWR_RESUME;
    469 	powerhook_establish(device_xname(&sc->sc_dev), p9100_power_hook, sc);
    470 
    471 #if NTCTRL > 0
    472 	/* register callback for external monitor status change */
    473 	tadpole_register_callback(p9100_set_extvga, sc);
    474 #endif
    475 }
    476 
    477 static void
    478 p9100_shutdown(arg)
    479 	void *arg;
    480 {
    481 	struct p9100_softc *sc = arg;
    482 
    483 #ifdef RASTERCONSOLE
    484 	sc->sc_cmap.cm_map[0][0] = 0xff;
    485 	sc->sc_cmap.cm_map[0][1] = 0xff;
    486 	sc->sc_cmap.cm_map[0][2] = 0xff;
    487 	sc->sc_cmap.cm_map[1][0] = 0;
    488 	sc->sc_cmap.cm_map[1][1] = 0;
    489 	sc->sc_cmap.cm_map[1][2] = 0x00;
    490 	p9100loadcmap(sc, 0, 2);
    491 	sc->sc_cmap.cm_map[255][0] = 0;
    492 	sc->sc_cmap.cm_map[255][1] = 0;
    493 	sc->sc_cmap.cm_map[255][2] = 0;
    494 	p9100loadcmap(sc, 255, 1);
    495 #endif
    496 	p9100_set_video(sc, 1);
    497 }
    498 
    499 int
    500 p9100open(dev_t dev, int flags, int mode, struct lwp *l)
    501 {
    502 	int unit = minor(dev);
    503 
    504 	if (unit >= pnozz_cd.cd_ndevs || pnozz_cd.cd_devs[unit] == NULL)
    505 		return (ENXIO);
    506 	return (0);
    507 }
    508 
    509 int
    510 p9100ioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
    511 {
    512 	struct p9100_softc *sc = pnozz_cd.cd_devs[minor(dev)];
    513 	struct fbgattr *fba;
    514 	int error, v;
    515 
    516 	switch (cmd) {
    517 
    518 	case FBIOGTYPE:
    519 		*(struct fbtype *)data = sc->sc_fb.fb_type;
    520 		break;
    521 
    522 	case FBIOGATTR:
    523 		fba = (struct fbgattr *)data;
    524 		fba->real_type = sc->sc_fb.fb_type.fb_type;
    525 		fba->owner = 0;		/* XXX ??? */
    526 		fba->fbtype = sc->sc_fb.fb_type;
    527 		fba->sattr.flags = 0;
    528 		fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
    529 		fba->sattr.dev_specific[0] = -1;
    530 		fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
    531 		fba->emu_types[1] = -1;
    532 		break;
    533 
    534 	case FBIOGETCMAP:
    535 #define p ((struct fbcmap *)data)
    536 		return (bt_getcmap(p, &sc->sc_cmap, 256, 1));
    537 
    538 	case FBIOPUTCMAP:
    539 		/* copy to software map */
    540 		error = bt_putcmap(p, &sc->sc_cmap, 256, 1);
    541 		if (error)
    542 			return (error);
    543 		/* now blast them into the chip */
    544 		/* XXX should use retrace interrupt */
    545 		p9100loadcmap(sc, p->index, p->count);
    546 #undef p
    547 		break;
    548 
    549 	case FBIOGVIDEO:
    550 		*(int *)data = p9100_get_video(sc);
    551 		break;
    552 
    553 	case FBIOSVIDEO:
    554 		p9100_set_video(sc, *(int *)data);
    555 		break;
    556 
    557 /* these are for both FBIOSCURSOR and FBIOGCURSOR */
    558 #define p ((struct fbcursor *)data)
    559 #define pc (&sc->sc_cursor)
    560 
    561 	case FBIOGCURSOR:
    562 		p->set = FB_CUR_SETALL;	/* close enough, anyway */
    563 		p->enable = pc->pc_enable;
    564 		p->pos = pc->pc_pos;
    565 		p->hot = pc->pc_hot;
    566 		p->size = pc->pc_size;
    567 
    568 		if (p->image != NULL) {
    569 			error = copyout(pc->pc_bits, p->image, 0x200);
    570 			if (error)
    571 				return error;
    572 			error = copyout(&pc->pc_bits[0x80], p->mask, 0x200);
    573 			if (error)
    574 				return error;
    575 		}
    576 
    577 		p->cmap.index = 0;
    578 		p->cmap.count = 3;
    579 		if (p->cmap.red != NULL) {
    580 			copyout(pc->red, p->cmap.red, 3);
    581 			copyout(pc->green, p->cmap.green, 3);
    582 			copyout(pc->blue, p->cmap.blue, 3);
    583 		}
    584 		break;
    585 
    586 	case FBIOSCURSOR:
    587 	{
    588 		int count;
    589 		uint32_t image[0x80], mask[0x80];
    590 		uint8_t red[3], green[3], blue[3];
    591 
    592 		v = p->set;
    593 		if (v & FB_CUR_SETCMAP) {
    594 			error = copyin(p->cmap.red, red, 3);
    595 			error |= copyin(p->cmap.green, green, 3);
    596 			error |= copyin(p->cmap.blue, blue, 3);
    597 			if (error)
    598 				return error;
    599 		}
    600 		if (v & FB_CUR_SETSHAPE) {
    601 			if (p->size.x > 64 || p->size.y > 64)
    602 				return EINVAL;
    603 			memset(&mask, 0, 0x200);
    604 			memset(&image, 0, 0x200);
    605 			count = p->size.y * 8;
    606 			error = copyin(p->image, image, count);
    607 			if (error)
    608 				return error;
    609 			error = copyin(p->mask, mask, count);
    610 			if (error)
    611 				return error;
    612 		}
    613 
    614 		/* parameters are OK; do it */
    615 		if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) {
    616 			if (v & FB_CUR_SETCUR)
    617 				pc->pc_enable = p->enable;
    618 			if (v & FB_CUR_SETPOS)
    619 				pc->pc_pos = p->pos;
    620 			if (v & FB_CUR_SETHOT)
    621 				pc->pc_hot = p->hot;
    622 			p9100_set_fbcursor(sc);
    623 		}
    624 
    625 		if (v & FB_CUR_SETCMAP) {
    626 			memcpy(pc->red, red, 3);
    627 			memcpy(pc->green, green, 3);
    628 			memcpy(pc->blue, blue, 3);
    629 			p9100_setcursorcmap(sc);
    630 		}
    631 
    632 		if (v & FB_CUR_SETSHAPE) {
    633 			memcpy(pc->pc_bits, image, 0x200);
    634 			memcpy(&pc->pc_bits[0x80], mask, 0x200);
    635 			p9100_loadcursor(sc);
    636 		}
    637 	}
    638 	break;
    639 
    640 #undef p
    641 #undef cc
    642 
    643 	case FBIOGCURPOS:
    644 		*(struct fbcurpos *)data = sc->sc_cursor.pc_pos;
    645 		break;
    646 
    647 	case FBIOSCURPOS:
    648 		sc->sc_cursor.pc_pos = *(struct fbcurpos *)data;
    649 		p9100_set_fbcursor(sc);
    650 		break;
    651 
    652 	case FBIOGCURMAX:
    653 		/* max cursor size is 64x64 */
    654 		((struct fbcurpos *)data)->x = 64;
    655 		((struct fbcurpos *)data)->y = 64;
    656 		break;
    657 
    658 	default:
    659 		return (ENOTTY);
    660 	}
    661 	return (0);
    662 }
    663 
    664 static uint32_t
    665 p9100_ctl_read_4(struct p9100_softc *sc, bus_size_t off)
    666 {
    667 
    668 	PNOZZ_LATCH(sc, off);
    669 	return bus_space_read_4(sc->sc_bustag, sc->sc_ctl_memh, off);
    670 }
    671 
    672 static void
    673 p9100_ctl_write_4(struct p9100_softc *sc, bus_size_t off, uint32_t v)
    674 {
    675 
    676 	PNOZZ_LATCH(sc, off);
    677 	bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off, v);
    678 }
    679 
    680 /* initialize the drawing engine */
    681 static void
    682 p9100_init_engine(struct p9100_softc *sc)
    683 {
    684 	/* reset clipping rectangles */
    685 	uint32_t rmax = ((sc->sc_width & 0x3fff) << 16) |
    686 	    (sc->sc_height & 0x3fff);
    687 
    688 	sc->sc_last_offset = 0xffffffff;
    689 
    690 	p9100_ctl_write_4(sc, WINDOW_OFFSET, 0);
    691 	p9100_ctl_write_4(sc, WINDOW_MIN, 0);
    692 	p9100_ctl_write_4(sc, WINDOW_MAX, rmax);
    693 	p9100_ctl_write_4(sc, BYTE_CLIP_MIN, 0);
    694 	p9100_ctl_write_4(sc, BYTE_CLIP_MAX, rmax);
    695 	p9100_ctl_write_4(sc, DRAW_MODE, 0);
    696 	p9100_ctl_write_4(sc, PLANE_MASK, 0xffffffff);
    697 	p9100_ctl_write_4(sc, PATTERN0, 0xffffffff);
    698 	p9100_ctl_write_4(sc, PATTERN1, 0xffffffff);
    699 	p9100_ctl_write_4(sc, PATTERN2, 0xffffffff);
    700 	p9100_ctl_write_4(sc, PATTERN3, 0xffffffff);
    701 }
    702 
    703 /* we only need these in the wsdisplay case */
    704 #if NWSDISPLAY > 0
    705 
    706 /* wait until the engine is idle */
    707 static void
    708 p9100_sync(struct p9100_softc *sc)
    709 {
    710 	while((p9100_ctl_read_4(sc, ENGINE_STATUS) &
    711 	    (ENGINE_BUSY | BLITTER_BUSY)) != 0);
    712 }
    713 
    714 static void
    715 p9100_set_color_reg(struct p9100_softc *sc, int reg, int32_t col)
    716 {
    717 	uint32_t out;
    718 
    719 	switch(sc->sc_depth)
    720 	{
    721 		case 1:	/* 8 bit */
    722 			out = (col << 8) | col;
    723 			out |= out << 16;
    724 			break;
    725 		case 2: /* 16 bit */
    726 			out = col | (col << 16);
    727 			break;
    728 		default:
    729 			out = col;
    730 	}
    731 	p9100_ctl_write_4(sc, reg, out);
    732 }
    733 
    734 /* screen-to-screen blit */
    735 static void
    736 p9100_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
    737     int he, uint32_t rop)
    738 {
    739 	struct p9100_softc *sc = cookie;
    740 	uint32_t src, dst, srcw, dstw;
    741 
    742 	sc->sc_last_offset = 0xffffffff;
    743 
    744 	src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
    745 	dst = ((xd & 0x3fff) << 16) | (yd & 0x3fff);
    746 	srcw = (((xs + wi - 1) & 0x3fff) << 16) | ((ys + he - 1) & 0x3fff);
    747 	dstw = (((xd + wi - 1) & 0x3fff) << 16) | ((yd + he - 1) & 0x3fff);
    748 	p9100_sync(sc);
    749 	p9100_ctl_write_4(sc, RASTER_OP, rop);
    750 
    751 	p9100_ctl_write_4(sc, ABS_XY0, src);
    752 
    753 	p9100_ctl_write_4(sc, ABS_XY1, srcw);
    754 	p9100_ctl_write_4(sc, ABS_XY2, dst);
    755 	p9100_ctl_write_4(sc, ABS_XY3, dstw);
    756 	sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_BLIT);
    757 }
    758 
    759 /* solid rectangle fill */
    760 static void
    761 p9100_rectfill(void *cookie, int xs, int ys, int wi, int he, uint32_t col)
    762 {
    763 	struct p9100_softc *sc = cookie;
    764 	uint32_t src, srcw;
    765 
    766 	sc->sc_last_offset = 0xffffffff;
    767 
    768 	src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
    769 	srcw = (((xs + wi) & 0x3fff) << 16) | ((ys + he) & 0x3fff);
    770 	p9100_sync(sc);
    771 	p9100_set_color_reg(sc, FOREGROUND_COLOR, col);
    772 	p9100_set_color_reg(sc, BACKGROUND_COLOR, col);
    773 	p9100_ctl_write_4(sc, RASTER_OP, ROP_PAT);
    774 	p9100_ctl_write_4(sc, COORD_INDEX, 0);
    775 	p9100_ctl_write_4(sc, RECT_RTW_XY, src);
    776 	p9100_ctl_write_4(sc, RECT_RTW_XY, srcw);
    777 	sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_QUAD);
    778 }
    779 
    780 /* setup for mono->colour expansion */
    781 static void
    782 p9100_setup_mono(struct p9100_softc *sc, int x, int y, int wi, int he,
    783     uint32_t fg, uint32_t bg)
    784 {
    785 
    786 	sc->sc_last_offset = 0xffffffff;
    787 
    788 	p9100_sync(sc);
    789 	/*
    790 	 * this doesn't make any sense to me either, but for some reason the
    791 	 * chip applies the foreground colour to 0 pixels
    792 	 */
    793 
    794 	p9100_set_color_reg(sc,FOREGROUND_COLOR,bg);
    795 	p9100_set_color_reg(sc,BACKGROUND_COLOR,fg);
    796 
    797 	p9100_ctl_write_4(sc, RASTER_OP, ROP_SRC);
    798 	p9100_ctl_write_4(sc, ABS_X0, x);
    799 	p9100_ctl_write_4(sc, ABS_XY1, (x << 16) | (y & 0xFFFFL));
    800 	p9100_ctl_write_4(sc, ABS_X2, (x + wi));
    801 	p9100_ctl_write_4(sc, ABS_Y3, he);
    802 	/* now feed the data into the chip */
    803 	sc->sc_mono_width = wi;
    804 }
    805 
    806 /* write monochrome data to the screen through the blitter */
    807 static void
    808 p9100_feed_line(struct p9100_softc *sc, int count, uint8_t *data)
    809 {
    810 	int i;
    811 	uint32_t latch = 0, bork;
    812 	int shift = 24;
    813 	int to_go = sc->sc_mono_width;
    814 
    815 	PNOZZ_LATCH(sc, PIXEL_1);
    816 
    817 	for (i = 0; i < count; i++) {
    818 		bork = data[i];
    819 		latch |= (bork << shift);
    820 		if (shift == 0) {
    821 			/* check how many bits are significant */
    822 			if (to_go > 31) {
    823 				bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
    824 				    (PIXEL_1 + (31 << 2)), latch);
    825 				/*p9100_ctl_write_4(sc, (PIXEL_1 +
    826 				    (31 << 2)), latch);*/
    827 				to_go -= 32;
    828 			} else
    829 			{
    830 				bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
    831 				    (PIXEL_1 + ((to_go - 1) << 2)), latch);
    832 				/*p9100_ctl_write_4(sc, (PIXEL_1 +
    833 				    ((to_go - 1) << 2)), latch);*/
    834 				to_go = 0;
    835 			}
    836 			latch = 0;
    837 			shift = 24;
    838 		} else
    839 			shift -= 8;
    840 		}
    841 	if (shift != 24)
    842 		p9100_ctl_write_4(sc, (PIXEL_1 + ((to_go - 1) << 2)), latch);
    843 }
    844 
    845 static void
    846 p9100_clearscreen(struct p9100_softc *sc)
    847 {
    848 
    849 	p9100_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, sc->sc_bg);
    850 }
    851 #endif /* NWSDISPLAY > 0 */
    852 
    853 static uint8_t
    854 p9100_ramdac_read(struct p9100_softc *sc, bus_size_t off)
    855 {
    856 
    857 	sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
    858 	return ((bus_space_read_4(sc->sc_bustag,
    859 	    sc->sc_ctl_memh, off) >> 16) & 0xff);
    860 }
    861 
    862 static void
    863 p9100_ramdac_write(struct p9100_softc *sc, bus_size_t off, uint8_t v)
    864 {
    865 
    866 	sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
    867 	bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off,
    868 	    ((uint32_t)v) << 16);
    869 }
    870 
    871 static uint8_t
    872 p9100_ramdac_read_ctl(struct p9100_softc *sc, int off)
    873 {
    874 	p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
    875 	p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
    876 	return p9100_ramdac_read(sc, DAC_INDX_DATA);
    877 }
    878 
    879 static void
    880 p9100_ramdac_write_ctl(struct p9100_softc *sc, int off, uint8_t val)
    881 {
    882 	p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
    883 	p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
    884 	p9100_ramdac_write(sc, DAC_INDX_DATA, val);
    885 }
    886 
    887 /*
    888  * Undo the effect of an FBIOSVIDEO that turns the video off.
    889  */
    890 static void
    891 p9100unblank(struct device *dev)
    892 {
    893 	struct p9100_softc *sc = (struct p9100_softc *)dev;
    894 
    895 	p9100_set_video((struct p9100_softc *)dev, 1);
    896 
    897 	/*
    898 	 * Check if we're in terminal mode. If not force the console screen
    899 	 * to front so we can see ddb, panic messages and so on
    900 	 */
    901 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) {
    902 		sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    903 		if (sc->vd.active != &p9100_console_screen) {
    904 			SCREEN_INVISIBLE(sc->vd.active);
    905 			sc->vd.active = &p9100_console_screen;
    906 			SCREEN_VISIBLE(&p9100_console_screen);
    907 		}
    908 		vcons_redraw_screen(&p9100_console_screen);
    909 	}
    910 }
    911 
    912 static void
    913 p9100_set_video(struct p9100_softc *sc, int enable)
    914 {
    915 	u_int32_t v = p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1);
    916 
    917 	if (enable)
    918 		v |= VIDEO_ENABLED;
    919 	else
    920 		v &= ~VIDEO_ENABLED;
    921 	p9100_ctl_write_4(sc, SCRN_RPNT_CTL_1, v);
    922 #if NTCTRL > 0
    923 	/* Turn On/Off the TFT if we know how.
    924 	 */
    925 	tadpole_set_video(enable);
    926 #endif
    927 }
    928 
    929 static int
    930 p9100_get_video(struct p9100_softc *sc)
    931 {
    932 	return (p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1) & VIDEO_ENABLED) != 0;
    933 }
    934 
    935 static void
    936 p9100_power_hook(int why, void *cookie)
    937 {
    938 	struct p9100_softc *sc = cookie;
    939 
    940 	if (why == sc->sc_powerstate)
    941 		return;
    942 
    943 	switch(why)
    944 	{
    945 		case PWR_SUSPEND:
    946 		case PWR_STANDBY:
    947 			sc->sc_video = p9100_get_video(sc);
    948 			p9100_set_video(sc, 0);
    949 			sc->sc_powerstate = why;
    950 			break;
    951 		case PWR_RESUME:
    952 			p9100_set_video(sc, sc->sc_video);
    953 			sc->sc_powerstate = why;
    954 			break;
    955 	}
    956 }
    957 
    958 /*
    959  * Load a subset of the current (new) colormap into the IBM RAMDAC.
    960  */
    961 static void
    962 p9100loadcmap(struct p9100_softc *sc, int start, int ncolors)
    963 {
    964 	int i;
    965 
    966 	sc->sc_last_offset = 0xffffffff;
    967 
    968 	p9100_ramdac_write(sc, DAC_CMAP_WRIDX, start);
    969 
    970 	for (i=0;i<ncolors;i++) {
    971 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    972 		    sc->sc_cmap.cm_map[i + start][0]);
    973 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    974 		    sc->sc_cmap.cm_map[i + start][1]);
    975 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    976 		    sc->sc_cmap.cm_map[i + start][2]);
    977 	}
    978 }
    979 
    980 /*
    981  * Return the address that would map the given device at the given
    982  * offset, allowing for the given protection, or return -1 for error.
    983  */
    984 static paddr_t
    985 p9100mmap(dev_t dev, off_t off, int prot)
    986 {
    987 	struct p9100_softc *sc = pnozz_cd.cd_devs[minor(dev)];
    988 
    989 	if (off & PGOFSET)
    990 		panic("p9100mmap");
    991 	if (off < 0)
    992 		return (-1);
    993 
    994 #ifdef PNOZZ_EMUL_CG3
    995 #define CG3_MMAP_OFFSET	0x04000000
    996 	/* Make Xsun think we are a CG3 (SUN3COLOR)
    997 	 */
    998 	if (off >= CG3_MMAP_OFFSET && off < CG3_MMAP_OFFSET + sc->sc_fb_psize) {
    999 		off -= CG3_MMAP_OFFSET;
   1000 		return (bus_space_mmap(sc->sc_bustag,
   1001 			sc->sc_fb_paddr,
   1002 			off,
   1003 			prot,
   1004 			BUS_SPACE_MAP_LINEAR));
   1005 	}
   1006 #endif
   1007 
   1008 	if (off >= sc->sc_fb_psize + sc->sc_ctl_psize + sc->sc_cmd_psize)
   1009 		return (-1);
   1010 
   1011 	if (off < sc->sc_fb_psize) {
   1012 		return (bus_space_mmap(sc->sc_bustag,
   1013 			sc->sc_fb_paddr,
   1014 			off,
   1015 			prot,
   1016 			BUS_SPACE_MAP_LINEAR));
   1017 	}
   1018 	off -= sc->sc_fb_psize;
   1019 	if (off < sc->sc_ctl_psize) {
   1020 		return (bus_space_mmap(sc->sc_bustag,
   1021 			sc->sc_ctl_paddr,
   1022 			off,
   1023 			prot,
   1024 			BUS_SPACE_MAP_LINEAR));
   1025 	}
   1026 	off -= sc->sc_ctl_psize;
   1027 
   1028 	return (bus_space_mmap(sc->sc_bustag,
   1029 		sc->sc_cmd_paddr,
   1030 		off,
   1031 		prot,
   1032 		BUS_SPACE_MAP_LINEAR));
   1033 }
   1034 
   1035 /* wscons stuff */
   1036 #if NWSDISPLAY > 0
   1037 
   1038 static void
   1039 p9100_cursor(void *cookie, int on, int row, int col)
   1040 {
   1041 	struct rasops_info *ri = cookie;
   1042 	struct vcons_screen *scr = ri->ri_hw;
   1043 	struct p9100_softc *sc = scr->scr_cookie;
   1044 	int x, y, wi,he;
   1045 
   1046 	wi = ri->ri_font->fontwidth;
   1047 	he = ri->ri_font->fontheight;
   1048 
   1049 	if (ri->ri_flg & RI_CURSOR) {
   1050 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1051 		y = ri->ri_crow * he + ri->ri_yorigin;
   1052 		p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
   1053 		ri->ri_flg &= ~RI_CURSOR;
   1054 	}
   1055 	ri->ri_crow = row;
   1056 	ri->ri_ccol = col;
   1057 	if (on)
   1058 	{
   1059 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1060 		y = ri->ri_crow * he + ri->ri_yorigin;
   1061 		p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
   1062 		ri->ri_flg |= RI_CURSOR;
   1063 	}
   1064 }
   1065 
   1066 #if 0
   1067 static int
   1068 p9100_mapchar(void *cookie, int uni, u_int *index)
   1069 {
   1070 	return 0;
   1071 }
   1072 #endif
   1073 
   1074 static void
   1075 p9100_putchar(void *cookie, int row, int col, u_int c, long attr)
   1076 {
   1077 	struct rasops_info *ri = cookie;
   1078 	struct vcons_screen *scr = ri->ri_hw;
   1079 	struct p9100_softc *sc = scr->scr_cookie;
   1080 
   1081 	int fg, bg, uc, i;
   1082 	uint8_t *data;
   1083 	int x, y, wi,he;
   1084 
   1085 	wi = ri->ri_font->fontwidth;
   1086 	he = ri->ri_font->fontheight;
   1087 
   1088 	if (!CHAR_IN_FONT(c, ri->ri_font))
   1089 		return;
   1090 	bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xff];
   1091 	fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xff];
   1092 	x = ri->ri_xorigin + col * wi;
   1093 	y = ri->ri_yorigin + row * he;
   1094 	if (c == 0x20) {
   1095 		p9100_rectfill(sc, x, y, wi, he, bg);
   1096 	} else {
   1097 		uc = c-ri->ri_font->firstchar;
   1098 		data = (uint8_t *)ri->ri_font->data + uc *
   1099 		    ri->ri_fontscale;
   1100 
   1101 		p9100_setup_mono(sc, x, y, wi, 1, fg, bg);
   1102 		for (i = 0; i < he; i++) {
   1103 			p9100_feed_line(sc, ri->ri_font->stride,
   1104 			    data);
   1105 			data += ri->ri_font->stride;
   1106 		}
   1107 		/*p9100_sync(sc);*/
   1108 	}
   1109 }
   1110 
   1111 /*
   1112  * wsdisplay_accessops
   1113  */
   1114 
   1115 int
   1116 p9100_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
   1117 	struct lwp *l)
   1118 {
   1119 	struct vcons_data *vd = v;
   1120 	struct p9100_softc *sc = vd->cookie;
   1121 	struct wsdisplay_fbinfo *wdf;
   1122 	struct vcons_screen *ms = vd->active;
   1123 
   1124 	switch (cmd) {
   1125 		case WSDISPLAYIO_GTYPE:
   1126 			*(u_int *)data = WSDISPLAY_TYPE_SB_P9100;
   1127 			return 0;
   1128 
   1129 		case FBIOGVIDEO:
   1130 		case WSDISPLAYIO_GVIDEO:
   1131 			*(int *)data = p9100_get_video(sc);
   1132 			return 0;
   1133 
   1134 		case WSDISPLAYIO_SVIDEO:
   1135 		case FBIOSVIDEO:
   1136 			p9100_set_video(sc, *(int *)data);
   1137 			return 0;
   1138 
   1139 		case WSDISPLAYIO_GINFO:
   1140 			wdf = (void *)data;
   1141 			wdf->height = ms->scr_ri.ri_height;
   1142 			wdf->width = ms->scr_ri.ri_width;
   1143 			wdf->depth = ms->scr_ri.ri_depth;
   1144 			wdf->cmsize = 256;
   1145 			return 0;
   1146 
   1147 		case WSDISPLAYIO_GETCMAP:
   1148 			return p9100_getcmap(sc, (struct wsdisplay_cmap *)data);
   1149 
   1150 		case WSDISPLAYIO_PUTCMAP:
   1151 			return p9100_putcmap(sc, (struct wsdisplay_cmap *)data);
   1152 
   1153 		case WSDISPLAYIO_SMODE:
   1154 			{
   1155 				int new_mode = *(int*)data;
   1156 				if (new_mode != sc->sc_mode)
   1157 				{
   1158 					sc->sc_mode = new_mode;
   1159 					if (new_mode == WSDISPLAYIO_MODE_EMUL)
   1160 					{
   1161 						p9100_init_engine(sc);
   1162 						p9100loadcmap(sc, 0, 256);
   1163 						p9100_clearscreen(sc);
   1164 						vcons_redraw_screen(ms);
   1165 					}
   1166 				}
   1167 			}
   1168 	}
   1169 	return EPASSTHROUGH;
   1170 }
   1171 
   1172 static paddr_t
   1173 p9100_mmap(void *v, void *vs, off_t offset, int prot)
   1174 {
   1175 	struct vcons_data *vd = v;
   1176 	struct p9100_softc *sc = vd->cookie;
   1177 	paddr_t pa;
   1178 
   1179 	/* 'regular' framebuffer mmap()ing */
   1180 	if (offset < sc->sc_fb_psize) {
   1181 		pa = bus_space_mmap(sc->sc_bustag, sc->sc_fb_paddr + offset, 0,
   1182 		    prot, BUS_SPACE_MAP_LINEAR);
   1183 		return pa;
   1184 	}
   1185 
   1186 	if ((offset >= sc->sc_fb_paddr) && (offset < (sc->sc_fb_paddr +
   1187 	    sc->sc_fb_psize))) {
   1188 		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
   1189 		    BUS_SPACE_MAP_LINEAR);
   1190 		return pa;
   1191 	}
   1192 
   1193 	if ((offset >= sc->sc_ctl_paddr) && (offset < (sc->sc_ctl_paddr +
   1194 	    sc->sc_ctl_psize))) {
   1195 		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
   1196 		    BUS_SPACE_MAP_LINEAR);
   1197 		return pa;
   1198 	}
   1199 
   1200 	return -1;
   1201 }
   1202 
   1203 static void
   1204 p9100_init_screen(void *cookie, struct vcons_screen *scr,
   1205     int existing, long *defattr)
   1206 {
   1207 	struct p9100_softc *sc = cookie;
   1208 	struct rasops_info *ri = &scr->scr_ri;
   1209 
   1210 	ri->ri_depth = sc->sc_depth << 3;
   1211 	ri->ri_width = sc->sc_width;
   1212 	ri->ri_height = sc->sc_height;
   1213 	ri->ri_stride = sc->sc_stride;
   1214 	ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
   1215 
   1216 	ri->ri_bits = bus_space_vaddr(sc->sc_bustag, sc->sc_fb_memh);
   1217 
   1218 #ifdef DEBUG_P9100
   1219 	printf("addr: %08lx\n",(ulong)ri->ri_bits);
   1220 #endif
   1221 	rasops_init(ri, sc->sc_height/8, sc->sc_width/8);
   1222 	ri->ri_caps = WSSCREEN_WSCOLORS;
   1223 	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
   1224 		    sc->sc_width / ri->ri_font->fontwidth);
   1225 
   1226 	/* enable acceleration */
   1227 	ri->ri_ops.cursor    = p9100_cursor;
   1228 	ri->ri_ops.copyrows  = p9100_copyrows;
   1229 	ri->ri_ops.eraserows = p9100_eraserows;
   1230 	ri->ri_ops.copycols  = p9100_copycols;
   1231 	ri->ri_ops.erasecols = p9100_erasecols;
   1232 	ri->ri_ops.putchar   = p9100_putchar;
   1233 	ri->ri_ops.allocattr = p9100_allocattr;
   1234 }
   1235 
   1236 static int
   1237 p9100_putcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
   1238 {
   1239 	u_int index = cm->index;
   1240 	u_int count = cm->count;
   1241 	int i, error;
   1242 	u_char rbuf[256], gbuf[256], bbuf[256];
   1243 	u_char *r, *g, *b;
   1244 
   1245 	if (cm->index >= 256 || cm->count > 256 ||
   1246 	    (cm->index + cm->count) > 256)
   1247 		return EINVAL;
   1248 	error = copyin(cm->red, &rbuf[index], count);
   1249 	if (error)
   1250 		return error;
   1251 	error = copyin(cm->green, &gbuf[index], count);
   1252 	if (error)
   1253 		return error;
   1254 	error = copyin(cm->blue, &bbuf[index], count);
   1255 	if (error)
   1256 		return error;
   1257 
   1258 	r = &rbuf[index];
   1259 	g = &gbuf[index];
   1260 	b = &bbuf[index];
   1261 
   1262 	for (i = 0; i < count; i++) {
   1263 		sc->sc_cmap.cm_map[index][0] = *r;
   1264 		sc->sc_cmap.cm_map[index][1] = *g;
   1265 		sc->sc_cmap.cm_map[index][2] = *b;
   1266 		index++;
   1267 		r++, g++, b++;
   1268 	}
   1269 	p9100loadcmap(sc, 0, 256);
   1270 	return 0;
   1271 }
   1272 
   1273 static int
   1274 p9100_getcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
   1275 {
   1276 	u_int index = cm->index;
   1277 	u_int count = cm->count;
   1278 	int error, i;
   1279 	uint8_t red[256], green[256], blue[256];
   1280 
   1281 	if (index >= 255 || count > 256 || index + count > 256)
   1282 		return EINVAL;
   1283 
   1284 	i = index;
   1285 	while (i < (index + count)) {
   1286 		red[i] = sc->sc_cmap.cm_map[i][0];
   1287 		green[i] = sc->sc_cmap.cm_map[i][1];
   1288 		blue[i] = sc->sc_cmap.cm_map[i][2];
   1289 		i++;
   1290 	}
   1291 	error = copyout(&red[index],   cm->red,   count);
   1292 	if (error)
   1293 		return error;
   1294 	error = copyout(&green[index], cm->green, count);
   1295 	if (error)
   1296 		return error;
   1297 	error = copyout(&blue[index],  cm->blue,  count);
   1298 	if (error)
   1299 		return error;
   1300 
   1301 	return 0;
   1302 }
   1303 
   1304 static void
   1305 p9100_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1306 {
   1307 	struct rasops_info *ri = cookie;
   1308 	struct vcons_screen *scr = ri->ri_hw;
   1309 	int32_t xs, xd, y, width, height;
   1310 
   1311 	xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   1312 	xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   1313 	y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1314 	width = ri->ri_font->fontwidth * ncols;
   1315 	height = ri->ri_font->fontheight;
   1316 	p9100_bitblt(scr->scr_cookie, xs, y, xd, y, width, height, ROP_SRC);
   1317 }
   1318 
   1319 static void
   1320 p9100_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
   1321 {
   1322 	struct rasops_info *ri = cookie;
   1323 	struct vcons_screen *scr = ri->ri_hw;
   1324 	int32_t x, y, width, height, bg;
   1325 
   1326 	x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   1327 	y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1328 	width = ri->ri_font->fontwidth * ncols;
   1329 	height = ri->ri_font->fontheight;
   1330 	bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
   1331 	p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
   1332 }
   1333 
   1334 static void
   1335 p9100_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   1336 {
   1337 	struct rasops_info *ri = cookie;
   1338 	struct vcons_screen *scr = ri->ri_hw;
   1339 	int32_t x, ys, yd, width, height;
   1340 
   1341 	x = ri->ri_xorigin;
   1342 	ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   1343 	yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   1344 	width = ri->ri_emuwidth;
   1345 	height = ri->ri_font->fontheight * nrows;
   1346 	p9100_bitblt(scr->scr_cookie, x, ys, x, yd, width, height, ROP_SRC);
   1347 }
   1348 
   1349 static void
   1350 p9100_eraserows(void *cookie, int row, int nrows, long fillattr)
   1351 {
   1352 	struct rasops_info *ri = cookie;
   1353 	struct vcons_screen *scr = ri->ri_hw;
   1354 	int32_t x, y, width, height, bg;
   1355 
   1356 	if ((row == 0) && (nrows == ri->ri_rows)) {
   1357 		x = y = 0;
   1358 		width = ri->ri_width;
   1359 		height = ri->ri_height;
   1360 	} else {
   1361 		x = ri->ri_xorigin;
   1362 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1363 		width = ri->ri_emuwidth;
   1364 		height = ri->ri_font->fontheight * nrows;
   1365 	}
   1366 	bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
   1367 	p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
   1368 }
   1369 
   1370 
   1371 static int
   1372 p9100_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
   1373 {
   1374 	if ((fg == 0) && (bg == 0))
   1375 	{
   1376 		fg = WS_DEFAULT_FG;
   1377 		bg = WS_DEFAULT_BG;
   1378 	}
   1379 	if (flags & WSATTR_REVERSE) {
   1380 		*attrp = (bg & 0xff) << 24 | (fg & 0xff) << 16 |
   1381 		    (flags & 0xff) << 8;
   1382 	} else
   1383 		*attrp = (fg & 0xff) << 24 | (bg & 0xff) << 16 |
   1384 		    (flags & 0xff) << 8;
   1385 	return 0;
   1386 }
   1387 
   1388 #if 0
   1389 static int
   1390 p9100_load_font(void *v, void *cookie, struct wsdisplay_font *data)
   1391 {
   1392 
   1393 	return 0;
   1394 }
   1395 #endif
   1396 
   1397 #endif /* NWSDISPLAY > 0 */
   1398 
   1399 static int
   1400 p9100_intr(void *arg)
   1401 {
   1402 	/*p9100_softc *sc=arg;
   1403 	printf(".");*/
   1404 	return 1;
   1405 }
   1406 
   1407 static void
   1408 p9100_init_cursor(struct p9100_softc *sc)
   1409 {
   1410 
   1411 	memset(&sc->sc_cursor, 0, sizeof(struct pnozz_cursor));
   1412 	sc->sc_cursor.pc_size.x = 64;
   1413 	sc->sc_cursor.pc_size.y = 64;
   1414 
   1415 }
   1416 
   1417 static void
   1418 p9100_set_fbcursor(struct p9100_softc *sc)
   1419 {
   1420 #ifdef PNOZZ_PARANOID
   1421 	int s;
   1422 
   1423 	s = splhigh();	/* just in case... */
   1424 #endif
   1425 	sc->sc_last_offset = 0xffffffff;
   1426 
   1427 	/* set position and hotspot */
   1428 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1429 	p9100_ramdac_write(sc, DAC_INDX_HI, 0);
   1430 	p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_CTL);
   1431 	if (sc->sc_cursor.pc_enable) {
   1432 		p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_X11 |
   1433 		    DAC_CURSOR_64);
   1434 	} else
   1435 		p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_OFF);
   1436 	/* next two registers - x low, high, y low, high */
   1437 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.x & 0xff);
   1438 	p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.x >> 8) &
   1439 	    0xff);
   1440 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.y & 0xff);
   1441 	p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.y >> 8) &
   1442 	    0xff);
   1443 	/* hotspot */
   1444 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.x & 0xff);
   1445 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.y & 0xff);
   1446 
   1447 #ifdef PNOZZ_PARANOID
   1448 	splx(s);
   1449 #endif
   1450 
   1451 }
   1452 
   1453 static void
   1454 p9100_setcursorcmap(struct p9100_softc *sc)
   1455 {
   1456 	int i;
   1457 
   1458 #ifdef PNOZZ_PARANOID
   1459 	int s;
   1460 	s = splhigh();	/* just in case... */
   1461 #endif
   1462 	sc->sc_last_offset = 0xffffffff;
   1463 
   1464 	/* set cursor colours */
   1465 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1466 	p9100_ramdac_write(sc, DAC_INDX_HI, 0);
   1467 	p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_COL_1);
   1468 
   1469 	for (i = 0; i < 3; i++) {
   1470 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.red[i]);
   1471 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.green[i]);
   1472 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.blue[i]);
   1473 	}
   1474 
   1475 #ifdef PNOZZ_PARANOID
   1476 	splx(s);
   1477 #endif
   1478 }
   1479 
   1480 static void
   1481 p9100_loadcursor(struct p9100_softc *sc)
   1482 {
   1483 	uint32_t *image, *mask;
   1484 	uint32_t bit, bbit, im, ma;
   1485 	int i, j, k;
   1486 	uint8_t latch1, latch2;
   1487 
   1488 #ifdef PNOZZ_PARANOID
   1489 	int s;
   1490 	s = splhigh();	/* just in case... */
   1491 #endif
   1492 	sc->sc_last_offset = 0xffffffff;
   1493 
   1494 	/* set cursor shape */
   1495 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1496 	p9100_ramdac_write(sc, DAC_INDX_HI, 1);
   1497 	p9100_ramdac_write(sc, DAC_INDX_LO, 0);
   1498 
   1499 	image = sc->sc_cursor.pc_bits;
   1500 	mask = &sc->sc_cursor.pc_bits[0x80];
   1501 
   1502 	for (i = 0; i < 0x80; i++) {
   1503 		bit = 0x80000000;
   1504 		im = image[i];
   1505 		ma = mask[i];
   1506 		for (k = 0; k < 4; k++) {
   1507 			bbit = 0x1;
   1508 			latch1 = 0;
   1509 			for (j = 0; j < 4; j++) {
   1510 				if (im & bit)
   1511 					latch1 |= bbit;
   1512 				bbit <<= 1;
   1513 				if (ma & bit)
   1514 					latch1 |= bbit;
   1515 				bbit <<= 1;
   1516 				bit >>= 1;
   1517 			}
   1518 			bbit = 0x1;
   1519 			latch2 = 0;
   1520 			for (j = 0; j < 4; j++) {
   1521 				if (im & bit)
   1522 					latch2 |= bbit;
   1523 				bbit <<= 1;
   1524 				if (ma & bit)
   1525 					latch2 |= bbit;
   1526 				bbit <<= 1;
   1527 				bit >>= 1;
   1528 			}
   1529 			p9100_ramdac_write(sc, DAC_INDX_DATA, latch1);
   1530 			p9100_ramdac_write(sc, DAC_INDX_DATA, latch2);
   1531 		}
   1532 	}
   1533 #ifdef DEBUG_CURSOR
   1534 	printf("image:\n");
   1535 	for (i=0;i<0x80;i+=2)
   1536 		printf("%08x %08x\n", image[i], image[i+1]);
   1537 	printf("mask:\n");
   1538 	for (i=0;i<0x80;i+=2)
   1539 		printf("%08x %08x\n", mask[i], mask[i+1]);
   1540 #endif
   1541 #ifdef PNOZZ_PARANOID
   1542 	splx(s);
   1543 #endif
   1544 }
   1545 
   1546 static void
   1547 p9100_set_extvga(void *cookie, int status)
   1548 {
   1549 	struct p9100_softc *sc = cookie;
   1550 #ifdef PNOZZ_PARANOID
   1551 	int s;
   1552 
   1553 	s = splhigh();
   1554 #endif
   1555 #ifdef DEBUG
   1556 	printf("%s: external VGA %s\n", device_xname(&sc->sc_dev),
   1557 	    status ? "on" : "off");
   1558 #endif
   1559 	sc->sc_last_offset = 0xffffffff;
   1560 
   1561 	if (status) {
   1562 		p9100_ramdac_write_ctl(sc, DAC_POWER,
   1563 		    p9100_ramdac_read_ctl(sc, DAC_POWER) &
   1564 		    ~DAC_POWER_IPWR_DISABLE);
   1565 	} else {
   1566 		p9100_ramdac_write_ctl(sc, DAC_POWER,
   1567 		    p9100_ramdac_read_ctl(sc, DAC_POWER) |
   1568 		    DAC_POWER_IPWR_DISABLE);
   1569 	}
   1570 #ifdef PNOZZ_PARANOID
   1571 	splx(s);
   1572 #endif
   1573 }
   1574