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p9100.c revision 1.37.4.3
      1 /*	$NetBSD: p9100.c,v 1.37.4.3 2009/05/16 10:41:43 yamt 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 1.37.4.3 2009/05/16 10:41:43 yamt 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(device_t, cfdata_t, void *);
    153 static void	p9100_sbus_attach(device_t, device_t, void *);
    154 
    155 static void	p9100unblank(device_t);
    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 #if NTCTRL > 0
    188 static void	p9100_ramdac_write_ctl(struct p9100_softc *, int, uint8_t);
    189 #endif
    190 
    191 static void 	p9100_init_engine(struct p9100_softc *);
    192 
    193 #if NWSDISPLAY > 0
    194 static void	p9100_sync(struct p9100_softc *);
    195 static void	p9100_bitblt(void *, int, int, int, int, int, int, uint32_t);
    196 static void 	p9100_rectfill(void *, int, int, int, int, uint32_t);
    197 static void	p9100_clearscreen(struct p9100_softc *);
    198 
    199 static void	p9100_setup_mono(struct p9100_softc *, int, int, int, int,
    200 		    uint32_t, uint32_t);
    201 static void	p9100_feed_line(struct p9100_softc *, int, uint8_t *);
    202 static void	p9100_set_color_reg(struct p9100_softc *, int, int32_t);
    203 
    204 static void	p9100_copycols(void *, int, int, int, int);
    205 static void	p9100_erasecols(void *, int, int, int, long);
    206 static void	p9100_copyrows(void *, int, int, int);
    207 static void	p9100_eraserows(void *, int, int, long);
    208 /*static int	p9100_mapchar(void *, int, u_int *);*/
    209 static void	p9100_putchar(void *, int, int, u_int, long);
    210 static void	p9100_cursor(void *, int, int, int);
    211 static int	p9100_allocattr(void *, int, int, int, long *);
    212 
    213 /*static void	p9100_scroll(void *, void *, int);*/
    214 
    215 static int	p9100_putcmap(struct p9100_softc *, struct wsdisplay_cmap *);
    216 static int 	p9100_getcmap(struct p9100_softc *, struct wsdisplay_cmap *);
    217 static int	p9100_ioctl(void *, void *, u_long, void *, int, struct lwp *);
    218 static paddr_t	p9100_mmap(void *, void *, off_t, int);
    219 
    220 /*static int	p9100_load_font(void *, void *, struct wsdisplay_font *);*/
    221 
    222 static void	p9100_init_screen(void *, struct vcons_screen *, int,
    223 	    long *);
    224 #endif
    225 
    226 static void	p9100_init_cursor(struct p9100_softc *);
    227 
    228 static void	p9100_set_fbcursor(struct p9100_softc *);
    229 static void	p9100_setcursorcmap(struct p9100_softc *);
    230 static void	p9100_loadcursor(struct p9100_softc *);
    231 
    232 static int	p9100_intr(void *);
    233 
    234 /* power management stuff */
    235 static void p9100_power_hook(int, void *);
    236 
    237 #if NTCTRL > 0
    238 static void p9100_set_extvga(void *, int);
    239 #endif
    240 
    241 #if NWSDISPLAY > 0
    242 struct wsdisplay_accessops p9100_accessops = {
    243 	p9100_ioctl,
    244 	p9100_mmap,
    245 	NULL,	/* vcons_alloc_screen */
    246 	NULL,	/* vcons_free_screen */
    247 	NULL,	/* vcons_show_screen */
    248 	NULL,	/* load_font */
    249 	NULL,	/* polls */
    250 	NULL,	/* scroll */
    251 };
    252 #endif
    253 
    254 #define PNOZZ_LATCH(sc, off) if(sc->sc_last_offset == (off & 0xffffff80)) { \
    255 		sc->sc_junk = bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, \
    256 		    off); \
    257 		sc->sc_last_offset = off & 0xffffff80; }
    258 
    259 /*
    260  * Match a p9100.
    261  */
    262 static int
    263 p9100_sbus_match(device_t parent, cfdata_t cf, void *aux)
    264 {
    265 	struct sbus_attach_args *sa = aux;
    266 
    267 	return (strcmp("p9100", sa->sa_name) == 0);
    268 }
    269 
    270 
    271 /*
    272  * Attach a display.  We need to notice if it is the console, too.
    273  */
    274 static void
    275 p9100_sbus_attach(device_t parent, device_t self, void *args)
    276 {
    277 	struct p9100_softc *sc = device_private(self);
    278 	struct sbus_attach_args *sa = args;
    279 	struct fbdevice *fb = &sc->sc_fb;
    280 	int isconsole;
    281 	int node;
    282 	int i, j;
    283 	uint8_t ver;
    284 
    285 #if NWSDISPLAY > 0
    286 	struct wsemuldisplaydev_attach_args aa;
    287 	struct rasops_info *ri;
    288 	unsigned long defattr;
    289 #endif
    290 
    291 	sc->sc_last_offset = 0xffffffff;
    292 
    293 	/* Remember cookies for p9100_mmap() */
    294 	sc->sc_bustag = sa->sa_bustag;
    295 	sc->sc_ctl_paddr = sbus_bus_addr(sa->sa_bustag,
    296 		sa->sa_reg[0].oa_space, sa->sa_reg[0].oa_base);
    297 	sc->sc_ctl_psize = 0x8000;/*(bus_size_t)sa->sa_reg[0].oa_size;*/
    298 
    299 	sc->sc_cmd_paddr = sbus_bus_addr(sa->sa_bustag,
    300 		sa->sa_reg[1].oa_space, sa->sa_reg[1].oa_base);
    301 	sc->sc_cmd_psize = (bus_size_t)sa->sa_reg[1].oa_size;
    302 
    303 	sc->sc_fb_paddr = sbus_bus_addr(sa->sa_bustag,
    304 		sa->sa_reg[2].oa_space, sa->sa_reg[2].oa_base);
    305 	sc->sc_fb_psize = (bus_size_t)sa->sa_reg[2].oa_size;
    306 
    307 	fb->fb_driver = &p9100fbdriver;
    308 	fb->fb_device = &sc->sc_dev;
    309 	fb->fb_flags = device_cfdata(&sc->sc_dev)->cf_flags & FB_USERMASK;
    310 #ifdef PNOZZ_EMUL_CG3
    311 	fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
    312 #else
    313 	fb->fb_type.fb_type = FBTYPE_P9100;
    314 #endif
    315 	fb->fb_pixels = NULL;
    316 
    317 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    318 
    319 	node = sa->sa_node;
    320 	isconsole = fb_is_console(node);
    321 	if (!isconsole) {
    322 		aprint_normal("\n");
    323 		aprint_error_dev(self, "fatal error: PROM didn't configure device\n");
    324 		return;
    325 	}
    326 
    327 	/*
    328 	 * When the ROM has mapped in a p9100 display, the address
    329 	 * maps only the video RAM, so in any case we have to map the
    330 	 * registers ourselves.  We only need the video RAM if we are
    331 	 * going to print characters via rconsole.
    332 	 */
    333 	if (sbus_bus_map(sc->sc_bustag,
    334 			 sa->sa_reg[0].oa_space,
    335 			 sa->sa_reg[0].oa_base,
    336 			 /*
    337 			  * XXX for some reason the SBus resources don't cover
    338 			  * all registers, so we just map what we need
    339 			  */
    340 			 /*sc->sc_ctl_psize*/ 0x8000,
    341 			 /*BUS_SPACE_MAP_LINEAR*/0, &sc->sc_ctl_memh) != 0) {
    342 		aprint_error_dev(self, "cannot map control registers\n");
    343 		return;
    344 	}
    345 
    346 	if (sa->sa_npromvaddrs != 0)
    347 		fb->fb_pixels = (void *)sa->sa_promvaddrs[0];
    348 
    349 	if (fb->fb_pixels == NULL) {
    350 		if (sbus_bus_map(sc->sc_bustag,
    351 				sa->sa_reg[2].oa_space,
    352 				sa->sa_reg[2].oa_base,
    353 				sc->sc_fb_psize,
    354 				BUS_SPACE_MAP_LINEAR, &sc->sc_fb_memh) != 0) {
    355 			aprint_error_dev(self, "cannot map framebuffer\n");
    356 			return;
    357 		}
    358 		fb->fb_pixels = (char *)sc->sc_fb_memh;
    359 	} else {
    360 		sc->sc_fb_memh = (bus_space_handle_t) fb->fb_pixels;
    361 	}
    362 
    363 	i = p9100_ctl_read_4(sc, 0x0004);
    364 	switch ((i >> 26) & 7) {
    365 	    case 5: fb->fb_type.fb_depth = 32; break;
    366 	    case 7: fb->fb_type.fb_depth = 24; break;
    367 	    case 3: fb->fb_type.fb_depth = 16; break;
    368 	    case 2: fb->fb_type.fb_depth = 8; break;
    369 	    default: {
    370 		panic("pnozz: can't determine screen depth (0x%02x)", i);
    371 	    }
    372 	}
    373 	sc->sc_depth = (fb->fb_type.fb_depth >> 3);
    374 
    375 	/* XXX for some reason I get a kernel trap with this */
    376 	sc->sc_width = prom_getpropint(node, "width", 800);
    377 	sc->sc_height = prom_getpropint(node, "height", 600);
    378 
    379 	sc->sc_stride = prom_getpropint(node, "linebytes", sc->sc_width *
    380 	    (fb->fb_type.fb_depth >> 3));
    381 
    382 	/* check the RAMDAC */
    383 	ver = p9100_ramdac_read_ctl(sc, DAC_VERSION);
    384 
    385 	p9100_init_engine(sc);
    386 
    387 	fb_setsize_obp(fb, fb->fb_type.fb_depth, sc->sc_width, sc->sc_height,
    388 	    node);
    389 
    390 	sbus_establish(&sc->sc_sd, &sc->sc_dev);
    391 	bus_intr_establish(sc->sc_bustag, sa->sa_pri, IPL_BIO,
    392 	    p9100_intr, sc);
    393 
    394 	fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
    395 	printf(": rev %d / %x, %dx%d, depth %d mem %x",
    396 	       (i & 7), ver, fb->fb_type.fb_width, fb->fb_type.fb_height,
    397 	       fb->fb_type.fb_depth, (unsigned int)sc->sc_fb_psize);
    398 
    399 	fb->fb_type.fb_cmsize = prom_getpropint(node, "cmsize", 256);
    400 	if ((1 << fb->fb_type.fb_depth) != fb->fb_type.fb_cmsize)
    401 		printf(", %d entry colormap", fb->fb_type.fb_cmsize);
    402 
    403 	/* Initialize the default color map. */
    404 	/*bt_initcmap(&sc->sc_cmap, 256);*/
    405 	j = 0;
    406 	for (i = 0; i < 256; i++) {
    407 		sc->sc_cmap.cm_map[i][0] = rasops_cmap[j];
    408 		j++;
    409 		sc->sc_cmap.cm_map[i][1] = rasops_cmap[j];
    410 		j++;
    411 		sc->sc_cmap.cm_map[i][2] = rasops_cmap[j];
    412 		j++;
    413 	}
    414 	p9100loadcmap(sc, 0, 256);
    415 
    416 	/* make sure we are not blanked */
    417 	if (isconsole)
    418 		p9100_set_video(sc, 1);
    419 
    420 	if (shutdownhook_establish(p9100_shutdown, sc) == NULL) {
    421 		panic("%s: could not establish shutdown hook",
    422 		      device_xname(&sc->sc_dev));
    423 	}
    424 
    425 	if (isconsole) {
    426 		printf(" (console)\n");
    427 #ifdef RASTERCONSOLE
    428 		/*p9100loadcmap(sc, 255, 1);*/
    429 		fbrcons_init(fb);
    430 #endif
    431 	} else
    432 		printf("\n");
    433 
    434 #if NWSDISPLAY > 0
    435 	wsfont_init();
    436 
    437 	vcons_init(&sc->vd, sc, &p9100_defscreendesc, &p9100_accessops);
    438 	sc->vd.init_screen = p9100_init_screen;
    439 
    440 	vcons_init_screen(&sc->vd, &p9100_console_screen, 1, &defattr);
    441 	p9100_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    442 
    443 	sc->sc_bg = (defattr >> 16) & 0xff;
    444 	p9100_clearscreen(sc);
    445 
    446 	ri = &p9100_console_screen.scr_ri;
    447 
    448 	p9100_defscreendesc.nrows = ri->ri_rows;
    449 	p9100_defscreendesc.ncols = ri->ri_cols;
    450 	p9100_defscreendesc.textops = &ri->ri_ops;
    451 	p9100_defscreendesc.capabilities = ri->ri_caps;
    452 
    453 	if(isconsole) {
    454 		wsdisplay_cnattach(&p9100_defscreendesc, ri, 0, 0, defattr);
    455 	}
    456 
    457 	aa.console = isconsole;
    458 	aa.scrdata = &p9100_screenlist;
    459 	aa.accessops = &p9100_accessops;
    460 	aa.accesscookie = &sc->vd;
    461 
    462 	config_found(self, &aa, wsemuldisplaydevprint);
    463 #endif
    464 	/* cursor sprite handling */
    465 	p9100_init_cursor(sc);
    466 
    467 	/* attach the fb */
    468 	fb_attach(fb, isconsole);
    469 
    470 	/* register with power management */
    471 	sc->sc_video = 1;
    472 	sc->sc_powerstate = PWR_RESUME;
    473 	powerhook_establish(device_xname(&sc->sc_dev), p9100_power_hook, sc);
    474 
    475 #if NTCTRL > 0
    476 	/* register callback for external monitor status change */
    477 	tadpole_register_callback(p9100_set_extvga, sc);
    478 #endif
    479 }
    480 
    481 static void
    482 p9100_shutdown(void *arg)
    483 {
    484 	struct p9100_softc *sc = arg;
    485 
    486 #ifdef RASTERCONSOLE
    487 	sc->sc_cmap.cm_map[0][0] = 0xff;
    488 	sc->sc_cmap.cm_map[0][1] = 0xff;
    489 	sc->sc_cmap.cm_map[0][2] = 0xff;
    490 	sc->sc_cmap.cm_map[1][0] = 0;
    491 	sc->sc_cmap.cm_map[1][1] = 0;
    492 	sc->sc_cmap.cm_map[1][2] = 0x00;
    493 	p9100loadcmap(sc, 0, 2);
    494 	sc->sc_cmap.cm_map[255][0] = 0;
    495 	sc->sc_cmap.cm_map[255][1] = 0;
    496 	sc->sc_cmap.cm_map[255][2] = 0;
    497 	p9100loadcmap(sc, 255, 1);
    498 #endif
    499 	p9100_set_video(sc, 1);
    500 }
    501 
    502 int
    503 p9100open(dev_t dev, int flags, int mode, struct lwp *l)
    504 {
    505 	int unit = minor(dev);
    506 
    507 	if (device_lookup(&pnozz_cd, unit) == NULL)
    508 		return (ENXIO);
    509 	return (0);
    510 }
    511 
    512 int
    513 p9100ioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
    514 {
    515 	struct p9100_softc *sc = device_lookup_private(&pnozz_cd, minor(dev));
    516 	struct fbgattr *fba;
    517 	int error, v;
    518 
    519 	switch (cmd) {
    520 
    521 	case FBIOGTYPE:
    522 		*(struct fbtype *)data = sc->sc_fb.fb_type;
    523 		break;
    524 
    525 	case FBIOGATTR:
    526 		fba = (struct fbgattr *)data;
    527 		fba->real_type = sc->sc_fb.fb_type.fb_type;
    528 		fba->owner = 0;		/* XXX ??? */
    529 		fba->fbtype = sc->sc_fb.fb_type;
    530 		fba->sattr.flags = 0;
    531 		fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
    532 		fba->sattr.dev_specific[0] = -1;
    533 		fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
    534 		fba->emu_types[1] = -1;
    535 		break;
    536 
    537 	case FBIOGETCMAP:
    538 #define p ((struct fbcmap *)data)
    539 		return (bt_getcmap(p, &sc->sc_cmap, 256, 1));
    540 
    541 	case FBIOPUTCMAP:
    542 		/* copy to software map */
    543 		error = bt_putcmap(p, &sc->sc_cmap, 256, 1);
    544 		if (error)
    545 			return (error);
    546 		/* now blast them into the chip */
    547 		/* XXX should use retrace interrupt */
    548 		p9100loadcmap(sc, p->index, p->count);
    549 #undef p
    550 		break;
    551 
    552 	case FBIOGVIDEO:
    553 		*(int *)data = p9100_get_video(sc);
    554 		break;
    555 
    556 	case FBIOSVIDEO:
    557 		p9100_set_video(sc, *(int *)data);
    558 		break;
    559 
    560 /* these are for both FBIOSCURSOR and FBIOGCURSOR */
    561 #define p ((struct fbcursor *)data)
    562 #define pc (&sc->sc_cursor)
    563 
    564 	case FBIOGCURSOR:
    565 		p->set = FB_CUR_SETALL;	/* close enough, anyway */
    566 		p->enable = pc->pc_enable;
    567 		p->pos = pc->pc_pos;
    568 		p->hot = pc->pc_hot;
    569 		p->size = pc->pc_size;
    570 
    571 		if (p->image != NULL) {
    572 			error = copyout(pc->pc_bits, p->image, 0x200);
    573 			if (error)
    574 				return error;
    575 			error = copyout(&pc->pc_bits[0x80], p->mask, 0x200);
    576 			if (error)
    577 				return error;
    578 		}
    579 
    580 		p->cmap.index = 0;
    581 		p->cmap.count = 3;
    582 		if (p->cmap.red != NULL) {
    583 			copyout(pc->red, p->cmap.red, 3);
    584 			copyout(pc->green, p->cmap.green, 3);
    585 			copyout(pc->blue, p->cmap.blue, 3);
    586 		}
    587 		break;
    588 
    589 	case FBIOSCURSOR:
    590 	{
    591 		int count;
    592 		uint32_t image[0x80], mask[0x80];
    593 		uint8_t red[3], green[3], blue[3];
    594 
    595 		v = p->set;
    596 		if (v & FB_CUR_SETCMAP) {
    597 			error = copyin(p->cmap.red, red, 3);
    598 			error |= copyin(p->cmap.green, green, 3);
    599 			error |= copyin(p->cmap.blue, blue, 3);
    600 			if (error)
    601 				return error;
    602 		}
    603 		if (v & FB_CUR_SETSHAPE) {
    604 			if (p->size.x > 64 || p->size.y > 64)
    605 				return EINVAL;
    606 			memset(&mask, 0, 0x200);
    607 			memset(&image, 0, 0x200);
    608 			count = p->size.y * 8;
    609 			error = copyin(p->image, image, count);
    610 			if (error)
    611 				return error;
    612 			error = copyin(p->mask, mask, count);
    613 			if (error)
    614 				return error;
    615 		}
    616 
    617 		/* parameters are OK; do it */
    618 		if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) {
    619 			if (v & FB_CUR_SETCUR)
    620 				pc->pc_enable = p->enable;
    621 			if (v & FB_CUR_SETPOS)
    622 				pc->pc_pos = p->pos;
    623 			if (v & FB_CUR_SETHOT)
    624 				pc->pc_hot = p->hot;
    625 			p9100_set_fbcursor(sc);
    626 		}
    627 
    628 		if (v & FB_CUR_SETCMAP) {
    629 			memcpy(pc->red, red, 3);
    630 			memcpy(pc->green, green, 3);
    631 			memcpy(pc->blue, blue, 3);
    632 			p9100_setcursorcmap(sc);
    633 		}
    634 
    635 		if (v & FB_CUR_SETSHAPE) {
    636 			memcpy(pc->pc_bits, image, 0x200);
    637 			memcpy(&pc->pc_bits[0x80], mask, 0x200);
    638 			p9100_loadcursor(sc);
    639 		}
    640 	}
    641 	break;
    642 
    643 #undef p
    644 #undef cc
    645 
    646 	case FBIOGCURPOS:
    647 		*(struct fbcurpos *)data = sc->sc_cursor.pc_pos;
    648 		break;
    649 
    650 	case FBIOSCURPOS:
    651 		sc->sc_cursor.pc_pos = *(struct fbcurpos *)data;
    652 		p9100_set_fbcursor(sc);
    653 		break;
    654 
    655 	case FBIOGCURMAX:
    656 		/* max cursor size is 64x64 */
    657 		((struct fbcurpos *)data)->x = 64;
    658 		((struct fbcurpos *)data)->y = 64;
    659 		break;
    660 
    661 	default:
    662 		return (ENOTTY);
    663 	}
    664 	return (0);
    665 }
    666 
    667 static uint32_t
    668 p9100_ctl_read_4(struct p9100_softc *sc, bus_size_t off)
    669 {
    670 
    671 	PNOZZ_LATCH(sc, off);
    672 	return bus_space_read_4(sc->sc_bustag, sc->sc_ctl_memh, off);
    673 }
    674 
    675 static void
    676 p9100_ctl_write_4(struct p9100_softc *sc, bus_size_t off, uint32_t v)
    677 {
    678 
    679 	PNOZZ_LATCH(sc, off);
    680 	bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off, v);
    681 }
    682 
    683 /* initialize the drawing engine */
    684 static void
    685 p9100_init_engine(struct p9100_softc *sc)
    686 {
    687 	/* reset clipping rectangles */
    688 	uint32_t rmax = ((sc->sc_width & 0x3fff) << 16) |
    689 	    (sc->sc_height & 0x3fff);
    690 
    691 	sc->sc_last_offset = 0xffffffff;
    692 
    693 	p9100_ctl_write_4(sc, WINDOW_OFFSET, 0);
    694 	p9100_ctl_write_4(sc, WINDOW_MIN, 0);
    695 	p9100_ctl_write_4(sc, WINDOW_MAX, rmax);
    696 	p9100_ctl_write_4(sc, BYTE_CLIP_MIN, 0);
    697 	p9100_ctl_write_4(sc, BYTE_CLIP_MAX, rmax);
    698 	p9100_ctl_write_4(sc, DRAW_MODE, 0);
    699 	p9100_ctl_write_4(sc, PLANE_MASK, 0xffffffff);
    700 	p9100_ctl_write_4(sc, PATTERN0, 0xffffffff);
    701 	p9100_ctl_write_4(sc, PATTERN1, 0xffffffff);
    702 	p9100_ctl_write_4(sc, PATTERN2, 0xffffffff);
    703 	p9100_ctl_write_4(sc, PATTERN3, 0xffffffff);
    704 }
    705 
    706 /* we only need these in the wsdisplay case */
    707 #if NWSDISPLAY > 0
    708 
    709 /* wait until the engine is idle */
    710 static void
    711 p9100_sync(struct p9100_softc *sc)
    712 {
    713 	while((p9100_ctl_read_4(sc, ENGINE_STATUS) &
    714 	    (ENGINE_BUSY | BLITTER_BUSY)) != 0);
    715 }
    716 
    717 static void
    718 p9100_set_color_reg(struct p9100_softc *sc, int reg, int32_t col)
    719 {
    720 	uint32_t out;
    721 
    722 	switch(sc->sc_depth)
    723 	{
    724 		case 1:	/* 8 bit */
    725 			out = (col << 8) | col;
    726 			out |= out << 16;
    727 			break;
    728 		case 2: /* 16 bit */
    729 			out = col | (col << 16);
    730 			break;
    731 		default:
    732 			out = col;
    733 	}
    734 	p9100_ctl_write_4(sc, reg, out);
    735 }
    736 
    737 /* screen-to-screen blit */
    738 static void
    739 p9100_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
    740     int he, uint32_t rop)
    741 {
    742 	struct p9100_softc *sc = cookie;
    743 	uint32_t src, dst, srcw, dstw;
    744 
    745 	sc->sc_last_offset = 0xffffffff;
    746 
    747 	src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
    748 	dst = ((xd & 0x3fff) << 16) | (yd & 0x3fff);
    749 	srcw = (((xs + wi - 1) & 0x3fff) << 16) | ((ys + he - 1) & 0x3fff);
    750 	dstw = (((xd + wi - 1) & 0x3fff) << 16) | ((yd + he - 1) & 0x3fff);
    751 	p9100_sync(sc);
    752 	p9100_ctl_write_4(sc, RASTER_OP, rop);
    753 
    754 	p9100_ctl_write_4(sc, ABS_XY0, src);
    755 
    756 	p9100_ctl_write_4(sc, ABS_XY1, srcw);
    757 	p9100_ctl_write_4(sc, ABS_XY2, dst);
    758 	p9100_ctl_write_4(sc, ABS_XY3, dstw);
    759 	sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_BLIT);
    760 }
    761 
    762 /* solid rectangle fill */
    763 static void
    764 p9100_rectfill(void *cookie, int xs, int ys, int wi, int he, uint32_t col)
    765 {
    766 	struct p9100_softc *sc = cookie;
    767 	uint32_t src, srcw;
    768 
    769 	sc->sc_last_offset = 0xffffffff;
    770 
    771 	src = ((xs & 0x3fff) << 16) | (ys & 0x3fff);
    772 	srcw = (((xs + wi) & 0x3fff) << 16) | ((ys + he) & 0x3fff);
    773 	p9100_sync(sc);
    774 	p9100_set_color_reg(sc, FOREGROUND_COLOR, col);
    775 	p9100_set_color_reg(sc, BACKGROUND_COLOR, col);
    776 	p9100_ctl_write_4(sc, RASTER_OP, ROP_PAT);
    777 	p9100_ctl_write_4(sc, COORD_INDEX, 0);
    778 	p9100_ctl_write_4(sc, RECT_RTW_XY, src);
    779 	p9100_ctl_write_4(sc, RECT_RTW_XY, srcw);
    780 	sc->sc_junk = p9100_ctl_read_4(sc, COMMAND_QUAD);
    781 }
    782 
    783 /* setup for mono->colour expansion */
    784 static void
    785 p9100_setup_mono(struct p9100_softc *sc, int x, int y, int wi, int he,
    786     uint32_t fg, uint32_t bg)
    787 {
    788 
    789 	sc->sc_last_offset = 0xffffffff;
    790 
    791 	p9100_sync(sc);
    792 	/*
    793 	 * this doesn't make any sense to me either, but for some reason the
    794 	 * chip applies the foreground colour to 0 pixels
    795 	 */
    796 
    797 	p9100_set_color_reg(sc,FOREGROUND_COLOR,bg);
    798 	p9100_set_color_reg(sc,BACKGROUND_COLOR,fg);
    799 
    800 	p9100_ctl_write_4(sc, RASTER_OP, ROP_SRC);
    801 	p9100_ctl_write_4(sc, ABS_X0, x);
    802 	p9100_ctl_write_4(sc, ABS_XY1, (x << 16) | (y & 0xFFFFL));
    803 	p9100_ctl_write_4(sc, ABS_X2, (x + wi));
    804 	p9100_ctl_write_4(sc, ABS_Y3, he);
    805 	/* now feed the data into the chip */
    806 	sc->sc_mono_width = wi;
    807 }
    808 
    809 /* write monochrome data to the screen through the blitter */
    810 static void
    811 p9100_feed_line(struct p9100_softc *sc, int count, uint8_t *data)
    812 {
    813 	int i;
    814 	uint32_t latch = 0, bork;
    815 	int shift = 24;
    816 	int to_go = sc->sc_mono_width;
    817 
    818 	PNOZZ_LATCH(sc, PIXEL_1);
    819 
    820 	for (i = 0; i < count; i++) {
    821 		bork = data[i];
    822 		latch |= (bork << shift);
    823 		if (shift == 0) {
    824 			/* check how many bits are significant */
    825 			if (to_go > 31) {
    826 				bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
    827 				    (PIXEL_1 + (31 << 2)), latch);
    828 				/*p9100_ctl_write_4(sc, (PIXEL_1 +
    829 				    (31 << 2)), latch);*/
    830 				to_go -= 32;
    831 			} else
    832 			{
    833 				bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh,
    834 				    (PIXEL_1 + ((to_go - 1) << 2)), latch);
    835 				/*p9100_ctl_write_4(sc, (PIXEL_1 +
    836 				    ((to_go - 1) << 2)), latch);*/
    837 				to_go = 0;
    838 			}
    839 			latch = 0;
    840 			shift = 24;
    841 		} else
    842 			shift -= 8;
    843 		}
    844 	if (shift != 24)
    845 		p9100_ctl_write_4(sc, (PIXEL_1 + ((to_go - 1) << 2)), latch);
    846 }
    847 
    848 static void
    849 p9100_clearscreen(struct p9100_softc *sc)
    850 {
    851 
    852 	p9100_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, sc->sc_bg);
    853 }
    854 #endif /* NWSDISPLAY > 0 */
    855 
    856 static uint8_t
    857 p9100_ramdac_read(struct p9100_softc *sc, bus_size_t off)
    858 {
    859 
    860 	sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
    861 	return ((bus_space_read_4(sc->sc_bustag,
    862 	    sc->sc_ctl_memh, off) >> 16) & 0xff);
    863 }
    864 
    865 static void
    866 p9100_ramdac_write(struct p9100_softc *sc, bus_size_t off, uint8_t v)
    867 {
    868 
    869 	sc->sc_junk = p9100_ctl_read_4(sc, PWRUP_CNFG);
    870 	bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off,
    871 	    ((uint32_t)v) << 16);
    872 }
    873 
    874 static uint8_t
    875 p9100_ramdac_read_ctl(struct p9100_softc *sc, int off)
    876 {
    877 	p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
    878 	p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
    879 	return p9100_ramdac_read(sc, DAC_INDX_DATA);
    880 }
    881 
    882 #if NTCTRL > 0
    883 static void
    884 p9100_ramdac_write_ctl(struct p9100_softc *sc, int off, uint8_t val)
    885 {
    886 	p9100_ramdac_write(sc, DAC_INDX_LO, off & 0xff);
    887 	p9100_ramdac_write(sc, DAC_INDX_HI, (off & 0xff00) >> 8);
    888 	p9100_ramdac_write(sc, DAC_INDX_DATA, val);
    889 }
    890 #endif /* NTCTRL > 0 */
    891 
    892 /*
    893  * Undo the effect of an FBIOSVIDEO that turns the video off.
    894  */
    895 static void
    896 p9100unblank(device_t dev)
    897 {
    898 	struct p9100_softc *sc = device_private(dev);
    899 
    900 	p9100_set_video((struct p9100_softc *)dev, 1);
    901 
    902 	/*
    903 	 * Check if we're in terminal mode. If not force the console screen
    904 	 * to front so we can see ddb, panic messages and so on
    905 	 */
    906 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) {
    907 		sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    908 		if (sc->vd.active != &p9100_console_screen) {
    909 			SCREEN_INVISIBLE(sc->vd.active);
    910 			sc->vd.active = &p9100_console_screen;
    911 			SCREEN_VISIBLE(&p9100_console_screen);
    912 		}
    913 		vcons_redraw_screen(&p9100_console_screen);
    914 	}
    915 }
    916 
    917 static void
    918 p9100_set_video(struct p9100_softc *sc, int enable)
    919 {
    920 	u_int32_t v = p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1);
    921 
    922 	if (enable)
    923 		v |= VIDEO_ENABLED;
    924 	else
    925 		v &= ~VIDEO_ENABLED;
    926 	p9100_ctl_write_4(sc, SCRN_RPNT_CTL_1, v);
    927 #if NTCTRL > 0
    928 	/* Turn On/Off the TFT if we know how.
    929 	 */
    930 	tadpole_set_video(enable);
    931 #endif
    932 }
    933 
    934 static int
    935 p9100_get_video(struct p9100_softc *sc)
    936 {
    937 	return (p9100_ctl_read_4(sc, SCRN_RPNT_CTL_1) & VIDEO_ENABLED) != 0;
    938 }
    939 
    940 static void
    941 p9100_power_hook(int why, void *cookie)
    942 {
    943 	struct p9100_softc *sc = cookie;
    944 
    945 	if (why == sc->sc_powerstate)
    946 		return;
    947 
    948 	switch(why)
    949 	{
    950 		case PWR_SUSPEND:
    951 		case PWR_STANDBY:
    952 			sc->sc_video = p9100_get_video(sc);
    953 			p9100_set_video(sc, 0);
    954 			sc->sc_powerstate = why;
    955 			break;
    956 		case PWR_RESUME:
    957 			p9100_set_video(sc, sc->sc_video);
    958 			sc->sc_powerstate = why;
    959 			break;
    960 	}
    961 }
    962 
    963 /*
    964  * Load a subset of the current (new) colormap into the IBM RAMDAC.
    965  */
    966 static void
    967 p9100loadcmap(struct p9100_softc *sc, int start, int ncolors)
    968 {
    969 	int i;
    970 
    971 	sc->sc_last_offset = 0xffffffff;
    972 
    973 	p9100_ramdac_write(sc, DAC_CMAP_WRIDX, start);
    974 
    975 	for (i=0;i<ncolors;i++) {
    976 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    977 		    sc->sc_cmap.cm_map[i + start][0]);
    978 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    979 		    sc->sc_cmap.cm_map[i + start][1]);
    980 		p9100_ramdac_write(sc, DAC_CMAP_DATA,
    981 		    sc->sc_cmap.cm_map[i + start][2]);
    982 	}
    983 }
    984 
    985 /*
    986  * Return the address that would map the given device at the given
    987  * offset, allowing for the given protection, or return -1 for error.
    988  */
    989 static paddr_t
    990 p9100mmap(dev_t dev, off_t off, int prot)
    991 {
    992 	struct p9100_softc *sc = device_lookup_private(&pnozz_cd, minor(dev));
    993 
    994 	if (off & PGOFSET)
    995 		panic("p9100mmap");
    996 	if (off < 0)
    997 		return (-1);
    998 
    999 #ifdef PNOZZ_EMUL_CG3
   1000 #define CG3_MMAP_OFFSET	0x04000000
   1001 	/* Make Xsun think we are a CG3 (SUN3COLOR)
   1002 	 */
   1003 	if (off >= CG3_MMAP_OFFSET && off < CG3_MMAP_OFFSET + sc->sc_fb_psize) {
   1004 		off -= CG3_MMAP_OFFSET;
   1005 		return (bus_space_mmap(sc->sc_bustag,
   1006 			sc->sc_fb_paddr,
   1007 			off,
   1008 			prot,
   1009 			BUS_SPACE_MAP_LINEAR));
   1010 	}
   1011 #endif
   1012 
   1013 	if (off >= sc->sc_fb_psize + sc->sc_ctl_psize + sc->sc_cmd_psize)
   1014 		return (-1);
   1015 
   1016 	if (off < sc->sc_fb_psize) {
   1017 		return (bus_space_mmap(sc->sc_bustag,
   1018 			sc->sc_fb_paddr,
   1019 			off,
   1020 			prot,
   1021 			BUS_SPACE_MAP_LINEAR));
   1022 	}
   1023 	off -= sc->sc_fb_psize;
   1024 	if (off < sc->sc_ctl_psize) {
   1025 		return (bus_space_mmap(sc->sc_bustag,
   1026 			sc->sc_ctl_paddr,
   1027 			off,
   1028 			prot,
   1029 			BUS_SPACE_MAP_LINEAR));
   1030 	}
   1031 	off -= sc->sc_ctl_psize;
   1032 
   1033 	return (bus_space_mmap(sc->sc_bustag,
   1034 		sc->sc_cmd_paddr,
   1035 		off,
   1036 		prot,
   1037 		BUS_SPACE_MAP_LINEAR));
   1038 }
   1039 
   1040 /* wscons stuff */
   1041 #if NWSDISPLAY > 0
   1042 
   1043 static void
   1044 p9100_cursor(void *cookie, int on, int row, int col)
   1045 {
   1046 	struct rasops_info *ri = cookie;
   1047 	struct vcons_screen *scr = ri->ri_hw;
   1048 	struct p9100_softc *sc = scr->scr_cookie;
   1049 	int x, y, wi,he;
   1050 
   1051 	wi = ri->ri_font->fontwidth;
   1052 	he = ri->ri_font->fontheight;
   1053 
   1054 	if (ri->ri_flg & RI_CURSOR) {
   1055 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1056 		y = ri->ri_crow * he + ri->ri_yorigin;
   1057 		p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
   1058 		ri->ri_flg &= ~RI_CURSOR;
   1059 	}
   1060 	ri->ri_crow = row;
   1061 	ri->ri_ccol = col;
   1062 	if (on)
   1063 	{
   1064 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1065 		y = ri->ri_crow * he + ri->ri_yorigin;
   1066 		p9100_bitblt(sc, x, y, x, y, wi, he, ROP_SRC ^ 0xff);
   1067 		ri->ri_flg |= RI_CURSOR;
   1068 	}
   1069 }
   1070 
   1071 #if 0
   1072 static int
   1073 p9100_mapchar(void *cookie, int uni, u_int *index)
   1074 {
   1075 	return 0;
   1076 }
   1077 #endif
   1078 
   1079 static void
   1080 p9100_putchar(void *cookie, int row, int col, u_int c, long attr)
   1081 {
   1082 	struct rasops_info *ri = cookie;
   1083 	struct vcons_screen *scr = ri->ri_hw;
   1084 	struct p9100_softc *sc = scr->scr_cookie;
   1085 
   1086 	int fg, bg, uc, i;
   1087 	uint8_t *data;
   1088 	int x, y, wi,he;
   1089 
   1090 	wi = ri->ri_font->fontwidth;
   1091 	he = ri->ri_font->fontheight;
   1092 
   1093 	if (!CHAR_IN_FONT(c, ri->ri_font))
   1094 		return;
   1095 	bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xff];
   1096 	fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xff];
   1097 	x = ri->ri_xorigin + col * wi;
   1098 	y = ri->ri_yorigin + row * he;
   1099 	if (c == 0x20) {
   1100 		p9100_rectfill(sc, x, y, wi, he, bg);
   1101 	} else {
   1102 		uc = c-ri->ri_font->firstchar;
   1103 		data = (uint8_t *)ri->ri_font->data + uc *
   1104 		    ri->ri_fontscale;
   1105 
   1106 		p9100_setup_mono(sc, x, y, wi, 1, fg, bg);
   1107 		for (i = 0; i < he; i++) {
   1108 			p9100_feed_line(sc, ri->ri_font->stride,
   1109 			    data);
   1110 			data += ri->ri_font->stride;
   1111 		}
   1112 		/*p9100_sync(sc);*/
   1113 	}
   1114 }
   1115 
   1116 /*
   1117  * wsdisplay_accessops
   1118  */
   1119 
   1120 int
   1121 p9100_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
   1122 	struct lwp *l)
   1123 {
   1124 	struct vcons_data *vd = v;
   1125 	struct p9100_softc *sc = vd->cookie;
   1126 	struct wsdisplay_fbinfo *wdf;
   1127 	struct vcons_screen *ms = vd->active;
   1128 
   1129 	switch (cmd) {
   1130 		case WSDISPLAYIO_GTYPE:
   1131 			*(u_int *)data = WSDISPLAY_TYPE_SB_P9100;
   1132 			return 0;
   1133 
   1134 		case FBIOGVIDEO:
   1135 		case WSDISPLAYIO_GVIDEO:
   1136 			*(int *)data = p9100_get_video(sc);
   1137 			return 0;
   1138 
   1139 		case WSDISPLAYIO_SVIDEO:
   1140 		case FBIOSVIDEO:
   1141 			p9100_set_video(sc, *(int *)data);
   1142 			return 0;
   1143 
   1144 		case WSDISPLAYIO_GINFO:
   1145 			wdf = (void *)data;
   1146 			wdf->height = ms->scr_ri.ri_height;
   1147 			wdf->width = ms->scr_ri.ri_width;
   1148 			wdf->depth = ms->scr_ri.ri_depth;
   1149 			wdf->cmsize = 256;
   1150 			return 0;
   1151 
   1152 		case WSDISPLAYIO_GETCMAP:
   1153 			return p9100_getcmap(sc, (struct wsdisplay_cmap *)data);
   1154 
   1155 		case WSDISPLAYIO_PUTCMAP:
   1156 			return p9100_putcmap(sc, (struct wsdisplay_cmap *)data);
   1157 
   1158 		case WSDISPLAYIO_SMODE:
   1159 			{
   1160 				int new_mode = *(int*)data;
   1161 				if (new_mode != sc->sc_mode)
   1162 				{
   1163 					sc->sc_mode = new_mode;
   1164 					if (new_mode == WSDISPLAYIO_MODE_EMUL)
   1165 					{
   1166 						p9100_init_engine(sc);
   1167 						p9100loadcmap(sc, 0, 256);
   1168 						p9100_clearscreen(sc);
   1169 						vcons_redraw_screen(ms);
   1170 					}
   1171 				}
   1172 			}
   1173 	}
   1174 	return EPASSTHROUGH;
   1175 }
   1176 
   1177 static paddr_t
   1178 p9100_mmap(void *v, void *vs, off_t offset, int prot)
   1179 {
   1180 	struct vcons_data *vd = v;
   1181 	struct p9100_softc *sc = vd->cookie;
   1182 	paddr_t pa;
   1183 
   1184 	/* 'regular' framebuffer mmap()ing */
   1185 	if (offset < sc->sc_fb_psize) {
   1186 		pa = bus_space_mmap(sc->sc_bustag, sc->sc_fb_paddr + offset, 0,
   1187 		    prot, BUS_SPACE_MAP_LINEAR);
   1188 		return pa;
   1189 	}
   1190 
   1191 	if ((offset >= sc->sc_fb_paddr) && (offset < (sc->sc_fb_paddr +
   1192 	    sc->sc_fb_psize))) {
   1193 		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
   1194 		    BUS_SPACE_MAP_LINEAR);
   1195 		return pa;
   1196 	}
   1197 
   1198 	if ((offset >= sc->sc_ctl_paddr) && (offset < (sc->sc_ctl_paddr +
   1199 	    sc->sc_ctl_psize))) {
   1200 		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
   1201 		    BUS_SPACE_MAP_LINEAR);
   1202 		return pa;
   1203 	}
   1204 
   1205 	return -1;
   1206 }
   1207 
   1208 static void
   1209 p9100_init_screen(void *cookie, struct vcons_screen *scr,
   1210     int existing, long *defattr)
   1211 {
   1212 	struct p9100_softc *sc = cookie;
   1213 	struct rasops_info *ri = &scr->scr_ri;
   1214 
   1215 	ri->ri_depth = sc->sc_depth << 3;
   1216 	ri->ri_width = sc->sc_width;
   1217 	ri->ri_height = sc->sc_height;
   1218 	ri->ri_stride = sc->sc_stride;
   1219 	ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
   1220 
   1221 	ri->ri_bits = bus_space_vaddr(sc->sc_bustag, sc->sc_fb_memh);
   1222 
   1223 #ifdef DEBUG_P9100
   1224 	printf("addr: %08lx\n",(ulong)ri->ri_bits);
   1225 #endif
   1226 	rasops_init(ri, sc->sc_height/8, sc->sc_width/8);
   1227 	ri->ri_caps = WSSCREEN_WSCOLORS;
   1228 	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
   1229 		    sc->sc_width / ri->ri_font->fontwidth);
   1230 
   1231 	/* enable acceleration */
   1232 	ri->ri_ops.cursor    = p9100_cursor;
   1233 	ri->ri_ops.copyrows  = p9100_copyrows;
   1234 	ri->ri_ops.eraserows = p9100_eraserows;
   1235 	ri->ri_ops.copycols  = p9100_copycols;
   1236 	ri->ri_ops.erasecols = p9100_erasecols;
   1237 	ri->ri_ops.putchar   = p9100_putchar;
   1238 	ri->ri_ops.allocattr = p9100_allocattr;
   1239 }
   1240 
   1241 static int
   1242 p9100_putcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
   1243 {
   1244 	u_int index = cm->index;
   1245 	u_int count = cm->count;
   1246 	int i, error;
   1247 	u_char rbuf[256], gbuf[256], bbuf[256];
   1248 	u_char *r, *g, *b;
   1249 
   1250 	if (cm->index >= 256 || cm->count > 256 ||
   1251 	    (cm->index + cm->count) > 256)
   1252 		return EINVAL;
   1253 	error = copyin(cm->red, &rbuf[index], count);
   1254 	if (error)
   1255 		return error;
   1256 	error = copyin(cm->green, &gbuf[index], count);
   1257 	if (error)
   1258 		return error;
   1259 	error = copyin(cm->blue, &bbuf[index], count);
   1260 	if (error)
   1261 		return error;
   1262 
   1263 	r = &rbuf[index];
   1264 	g = &gbuf[index];
   1265 	b = &bbuf[index];
   1266 
   1267 	for (i = 0; i < count; i++) {
   1268 		sc->sc_cmap.cm_map[index][0] = *r;
   1269 		sc->sc_cmap.cm_map[index][1] = *g;
   1270 		sc->sc_cmap.cm_map[index][2] = *b;
   1271 		index++;
   1272 		r++, g++, b++;
   1273 	}
   1274 	p9100loadcmap(sc, 0, 256);
   1275 	return 0;
   1276 }
   1277 
   1278 static int
   1279 p9100_getcmap(struct p9100_softc *sc, struct wsdisplay_cmap *cm)
   1280 {
   1281 	u_int index = cm->index;
   1282 	u_int count = cm->count;
   1283 	int error, i;
   1284 	uint8_t red[256], green[256], blue[256];
   1285 
   1286 	if (index >= 255 || count > 256 || index + count > 256)
   1287 		return EINVAL;
   1288 
   1289 	i = index;
   1290 	while (i < (index + count)) {
   1291 		red[i] = sc->sc_cmap.cm_map[i][0];
   1292 		green[i] = sc->sc_cmap.cm_map[i][1];
   1293 		blue[i] = sc->sc_cmap.cm_map[i][2];
   1294 		i++;
   1295 	}
   1296 	error = copyout(&red[index],   cm->red,   count);
   1297 	if (error)
   1298 		return error;
   1299 	error = copyout(&green[index], cm->green, count);
   1300 	if (error)
   1301 		return error;
   1302 	error = copyout(&blue[index],  cm->blue,  count);
   1303 	if (error)
   1304 		return error;
   1305 
   1306 	return 0;
   1307 }
   1308 
   1309 static void
   1310 p9100_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1311 {
   1312 	struct rasops_info *ri = cookie;
   1313 	struct vcons_screen *scr = ri->ri_hw;
   1314 	int32_t xs, xd, y, width, height;
   1315 
   1316 	xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   1317 	xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   1318 	y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1319 	width = ri->ri_font->fontwidth * ncols;
   1320 	height = ri->ri_font->fontheight;
   1321 	p9100_bitblt(scr->scr_cookie, xs, y, xd, y, width, height, ROP_SRC);
   1322 }
   1323 
   1324 static void
   1325 p9100_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
   1326 {
   1327 	struct rasops_info *ri = cookie;
   1328 	struct vcons_screen *scr = ri->ri_hw;
   1329 	int32_t x, y, width, height, bg;
   1330 
   1331 	x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   1332 	y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1333 	width = ri->ri_font->fontwidth * ncols;
   1334 	height = ri->ri_font->fontheight;
   1335 	bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
   1336 	p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
   1337 }
   1338 
   1339 static void
   1340 p9100_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   1341 {
   1342 	struct rasops_info *ri = cookie;
   1343 	struct vcons_screen *scr = ri->ri_hw;
   1344 	int32_t x, ys, yd, width, height;
   1345 
   1346 	x = ri->ri_xorigin;
   1347 	ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   1348 	yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   1349 	width = ri->ri_emuwidth;
   1350 	height = ri->ri_font->fontheight * nrows;
   1351 	p9100_bitblt(scr->scr_cookie, x, ys, x, yd, width, height, ROP_SRC);
   1352 }
   1353 
   1354 static void
   1355 p9100_eraserows(void *cookie, int row, int nrows, long fillattr)
   1356 {
   1357 	struct rasops_info *ri = cookie;
   1358 	struct vcons_screen *scr = ri->ri_hw;
   1359 	int32_t x, y, width, height, bg;
   1360 
   1361 	if ((row == 0) && (nrows == ri->ri_rows)) {
   1362 		x = y = 0;
   1363 		width = ri->ri_width;
   1364 		height = ri->ri_height;
   1365 	} else {
   1366 		x = ri->ri_xorigin;
   1367 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1368 		width = ri->ri_emuwidth;
   1369 		height = ri->ri_font->fontheight * nrows;
   1370 	}
   1371 	bg = (uint32_t)ri->ri_devcmap[(fillattr >> 16) & 0xff];
   1372 	p9100_rectfill(scr->scr_cookie, x, y, width, height, bg);
   1373 }
   1374 
   1375 
   1376 static int
   1377 p9100_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
   1378 {
   1379 	if ((fg == 0) && (bg == 0))
   1380 	{
   1381 		fg = WS_DEFAULT_FG;
   1382 		bg = WS_DEFAULT_BG;
   1383 	}
   1384 	if (flags & WSATTR_REVERSE) {
   1385 		*attrp = (bg & 0xff) << 24 | (fg & 0xff) << 16 |
   1386 		    (flags & 0xff) << 8;
   1387 	} else
   1388 		*attrp = (fg & 0xff) << 24 | (bg & 0xff) << 16 |
   1389 		    (flags & 0xff) << 8;
   1390 	return 0;
   1391 }
   1392 
   1393 #if 0
   1394 static int
   1395 p9100_load_font(void *v, void *cookie, struct wsdisplay_font *data)
   1396 {
   1397 
   1398 	return 0;
   1399 }
   1400 #endif
   1401 
   1402 #endif /* NWSDISPLAY > 0 */
   1403 
   1404 static int
   1405 p9100_intr(void *arg)
   1406 {
   1407 	/*p9100_softc *sc=arg;
   1408 	printf(".");*/
   1409 	return 1;
   1410 }
   1411 
   1412 static void
   1413 p9100_init_cursor(struct p9100_softc *sc)
   1414 {
   1415 
   1416 	memset(&sc->sc_cursor, 0, sizeof(struct pnozz_cursor));
   1417 	sc->sc_cursor.pc_size.x = 64;
   1418 	sc->sc_cursor.pc_size.y = 64;
   1419 
   1420 }
   1421 
   1422 static void
   1423 p9100_set_fbcursor(struct p9100_softc *sc)
   1424 {
   1425 #ifdef PNOZZ_PARANOID
   1426 	int s;
   1427 
   1428 	s = splhigh();	/* just in case... */
   1429 #endif
   1430 	sc->sc_last_offset = 0xffffffff;
   1431 
   1432 	/* set position and hotspot */
   1433 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1434 	p9100_ramdac_write(sc, DAC_INDX_HI, 0);
   1435 	p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_CTL);
   1436 	if (sc->sc_cursor.pc_enable) {
   1437 		p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_X11 |
   1438 		    DAC_CURSOR_64);
   1439 	} else
   1440 		p9100_ramdac_write(sc, DAC_INDX_DATA, DAC_CURSOR_OFF);
   1441 	/* next two registers - x low, high, y low, high */
   1442 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.x & 0xff);
   1443 	p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.x >> 8) &
   1444 	    0xff);
   1445 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_pos.y & 0xff);
   1446 	p9100_ramdac_write(sc, DAC_INDX_DATA, (sc->sc_cursor.pc_pos.y >> 8) &
   1447 	    0xff);
   1448 	/* hotspot */
   1449 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.x & 0xff);
   1450 	p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.pc_hot.y & 0xff);
   1451 
   1452 #ifdef PNOZZ_PARANOID
   1453 	splx(s);
   1454 #endif
   1455 
   1456 }
   1457 
   1458 static void
   1459 p9100_setcursorcmap(struct p9100_softc *sc)
   1460 {
   1461 	int i;
   1462 
   1463 #ifdef PNOZZ_PARANOID
   1464 	int s;
   1465 	s = splhigh();	/* just in case... */
   1466 #endif
   1467 	sc->sc_last_offset = 0xffffffff;
   1468 
   1469 	/* set cursor colours */
   1470 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1471 	p9100_ramdac_write(sc, DAC_INDX_HI, 0);
   1472 	p9100_ramdac_write(sc, DAC_INDX_LO, DAC_CURSOR_COL_1);
   1473 
   1474 	for (i = 0; i < 3; i++) {
   1475 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.red[i]);
   1476 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.green[i]);
   1477 		p9100_ramdac_write(sc, DAC_INDX_DATA, sc->sc_cursor.blue[i]);
   1478 	}
   1479 
   1480 #ifdef PNOZZ_PARANOID
   1481 	splx(s);
   1482 #endif
   1483 }
   1484 
   1485 static void
   1486 p9100_loadcursor(struct p9100_softc *sc)
   1487 {
   1488 	uint32_t *image, *mask;
   1489 	uint32_t bit, bbit, im, ma;
   1490 	int i, j, k;
   1491 	uint8_t latch1, latch2;
   1492 
   1493 #ifdef PNOZZ_PARANOID
   1494 	int s;
   1495 	s = splhigh();	/* just in case... */
   1496 #endif
   1497 	sc->sc_last_offset = 0xffffffff;
   1498 
   1499 	/* set cursor shape */
   1500 	p9100_ramdac_write(sc, DAC_INDX_CTL, DAC_INDX_AUTOINCR);
   1501 	p9100_ramdac_write(sc, DAC_INDX_HI, 1);
   1502 	p9100_ramdac_write(sc, DAC_INDX_LO, 0);
   1503 
   1504 	image = sc->sc_cursor.pc_bits;
   1505 	mask = &sc->sc_cursor.pc_bits[0x80];
   1506 
   1507 	for (i = 0; i < 0x80; i++) {
   1508 		bit = 0x80000000;
   1509 		im = image[i];
   1510 		ma = mask[i];
   1511 		for (k = 0; k < 4; k++) {
   1512 			bbit = 0x1;
   1513 			latch1 = 0;
   1514 			for (j = 0; j < 4; j++) {
   1515 				if (im & bit)
   1516 					latch1 |= bbit;
   1517 				bbit <<= 1;
   1518 				if (ma & bit)
   1519 					latch1 |= bbit;
   1520 				bbit <<= 1;
   1521 				bit >>= 1;
   1522 			}
   1523 			bbit = 0x1;
   1524 			latch2 = 0;
   1525 			for (j = 0; j < 4; j++) {
   1526 				if (im & bit)
   1527 					latch2 |= bbit;
   1528 				bbit <<= 1;
   1529 				if (ma & bit)
   1530 					latch2 |= bbit;
   1531 				bbit <<= 1;
   1532 				bit >>= 1;
   1533 			}
   1534 			p9100_ramdac_write(sc, DAC_INDX_DATA, latch1);
   1535 			p9100_ramdac_write(sc, DAC_INDX_DATA, latch2);
   1536 		}
   1537 	}
   1538 #ifdef DEBUG_CURSOR
   1539 	printf("image:\n");
   1540 	for (i=0;i<0x80;i+=2)
   1541 		printf("%08x %08x\n", image[i], image[i+1]);
   1542 	printf("mask:\n");
   1543 	for (i=0;i<0x80;i+=2)
   1544 		printf("%08x %08x\n", mask[i], mask[i+1]);
   1545 #endif
   1546 #ifdef PNOZZ_PARANOID
   1547 	splx(s);
   1548 #endif
   1549 }
   1550 
   1551 #if NTCTRL > 0
   1552 static void
   1553 p9100_set_extvga(void *cookie, int status)
   1554 {
   1555 	struct p9100_softc *sc = cookie;
   1556 #ifdef PNOZZ_PARANOID
   1557 	int s;
   1558 
   1559 	s = splhigh();
   1560 #endif
   1561 #ifdef DEBUG
   1562 	printf("%s: external VGA %s\n", device_xname(&sc->sc_dev),
   1563 	    status ? "on" : "off");
   1564 #endif
   1565 	sc->sc_last_offset = 0xffffffff;
   1566 
   1567 	if (status) {
   1568 		p9100_ramdac_write_ctl(sc, DAC_POWER,
   1569 		    p9100_ramdac_read_ctl(sc, DAC_POWER) &
   1570 		    ~DAC_POWER_IPWR_DISABLE);
   1571 	} else {
   1572 		p9100_ramdac_write_ctl(sc, DAC_POWER,
   1573 		    p9100_ramdac_read_ctl(sc, DAC_POWER) |
   1574 		    DAC_POWER_IPWR_DISABLE);
   1575 	}
   1576 #ifdef PNOZZ_PARANOID
   1577 	splx(s);
   1578 #endif
   1579 }
   1580 #endif /* NTCTRL > 0 */
   1581