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hpcfb.c revision 1.1
      1 /*	$NetBSD: hpcfb.c,v 1.1 2001/02/22 18:37:55 uch Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999
      5  *         Shin Takemura and PocketBSD Project. All rights reserved.
      6  * Copyright (c) 2000,2001
      7  *         SATO Kazumi. All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the PocketBSD project
     20  *	and its contributors.
     21  * 4. Neither the name of the project nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  */
     38 
     39 /*
     40  * jump scroll, scroll thread, multiscreen, virtual text vram
     41  * and hpcfb_emulops functions
     42  * written by SATO Kazumi.
     43  */
     44 
     45 #define FBDEBUG
     46 static const char _copyright[] __attribute__ ((unused)) =
     47     "Copyright (c) 1999 Shin Takemura.  All rights reserved.";
     48 static const char _rcsid[] __attribute__ ((unused)) =
     49     "$Id: hpcfb.c,v 1.1 2001/02/22 18:37:55 uch Exp $";
     50 
     51 #include <sys/param.h>
     52 #include <sys/systm.h>
     53 #include <sys/kernel.h>
     54 #include <sys/signalvar.h>
     55 #include <sys/map.h>
     56 #include <sys/proc.h>
     57 #include <sys/kthread.h>
     58 #include <sys/lock.h>
     59 #include <sys/user.h>
     60 #include <sys/device.h>
     61 #include <sys/conf.h>
     62 #include <sys/malloc.h>
     63 #include <sys/buf.h>
     64 #include <sys/ioctl.h>
     65 
     66 #include <uvm/uvm_extern.h>
     67 
     68 #include <machine/bus.h>
     69 #include <machine/autoconf.h>
     70 
     71 #include <dev/wscons/wsconsio.h>
     72 #include <dev/wscons/wsdisplayvar.h>
     73 #include <dev/wscons/wscons_callbacks.h>
     74 
     75 #include <dev/wsfont/wsfont.h>
     76 #include <dev/rasops/rasops.h>
     77 
     78 #include <dev/hpc/hpcfbvar.h>
     79 #include <dev/hpc/hpcfbio.h>
     80 
     81 #include "bivideo.h"
     82 #if NBIVIDEO > 0
     83 #include <dev/hpc/bivideovar.h>
     84 #endif
     85 
     86 #ifdef FBDEBUG
     87 int	hpcfb_debug = 0;
     88 #define	DPRINTF(arg) if (hpcfb_debug) printf arg;
     89 #else
     90 #define	DPRINTF(arg)
     91 #endif
     92 
     93 #ifndef HPCFB_MAX_COLUMN
     94 #define HPCFB_MAX_COLUMN 130
     95 #endif /* HPCFB_MAX_COLUMN */
     96 #ifndef HPCFB_MAX_ROW
     97 #define HPCFB_MAX_ROW 80
     98 #endif /* HPCFB_MAX_ROW */
     99 
    100 /*
    101  * currently experimental
    102 #define HPCFB_JUMP
    103 #define HPCFB_MULTI
    104 */
    105 
    106 struct hpcfb_vchar {
    107 	u_int c;
    108 	long attr;
    109 };
    110 
    111 struct hpcfb_tvrow {
    112 	int maxcol;
    113 	int spacecol;
    114 	struct hpcfb_vchar col[HPCFB_MAX_COLUMN];
    115 };
    116 
    117 struct hpcfb_devconfig {
    118 	struct rasops_info	dc_rinfo;	/* rasops infomation */
    119 
    120 	int		dc_blanked;	/* currently had video disabled */
    121 	struct hpcfb_softc *dc_sc;
    122 	int dc_rows;
    123 	int dc_cols;
    124 	struct hpcfb_tvrow *dc_tvram;
    125 	int dc_curx;
    126 	int dc_cury;
    127 #ifdef HPCFB_JUMP
    128 	int dc_min_row;
    129 	int dc_max_row;
    130 	int dc_scroll;
    131 	struct callout dc_scroll_ch;
    132 	int dc_scroll_src;
    133 	int dc_scroll_dst;
    134 	int dc_scroll_num;
    135 #endif /* HPCFB_JUMP */
    136 	volatile int dc_state;
    137 #define HPCFB_DC_CURRENT		0x80000000
    138 #define HPCFB_DC_DRAWING		0x01	/* drawing raster ops */
    139 #define HPCFB_DC_TDRAWING		0x02	/* drawing tvram */
    140 #define HPCFB_DC_SCROLLPENDING		0x04	/* scroll is pending */
    141 #define HPCFB_DC_UPDATE			0x08	/* tvram update */
    142 #define HPCFB_DC_SCRDELAY		0x10	/* scroll time but delay it */
    143 #define HPCFB_DC_SCRTHREAD		0x20	/* in scroll thread or callout */
    144 #define HPCFB_DC_UPDATEALL		0x40	/* need to redraw all */
    145 #define HPCFB_DC_ABORT			0x80	/* abort redrawing */
    146 #ifdef HPCFB_MULTI
    147 	int dc_scrno;
    148 	int	dc_memsize;
    149 #endif /* HPCFB_MULTI */
    150 	u_char *dc_fbaddr;
    151 };
    152 
    153 #define HPCFB_MAX_SCREEN 5
    154 #define HPCFB_MAX_JUMP 5
    155 
    156 struct hpcfb_softc {
    157 	struct	device sc_dev;
    158 	struct	hpcfb_devconfig *sc_dc;	/* device configuration */
    159 #ifdef HPCFB_MULTI
    160 	struct	hpcfb_devconfig *screens[HPCFB_MAX_SCREEN];
    161 #endif /* HPCFB_MULTI */
    162 	const struct hpcfb_accessops	*sc_accessops;
    163 	void *sc_accessctx;
    164 	int nscreens;
    165 	void *sc_powerhook;	/* power management hook */
    166 	struct device *sc_wsdisplay;
    167 	int sc_screen_resumed;
    168 	int sc_polling;
    169 	int sc_mapping;
    170 	struct proc *sc_thread;
    171 	struct lock sc_lock;
    172 	void *sc_wantedscreen;
    173 	void (*sc_switchcb) __P((void *, int, int));
    174 	void *sc_switchcbarg;
    175 	struct callout sc_switch_callout;
    176 };
    177 
    178 /*
    179  *  function prototypes
    180  */
    181 int	hpcfbmatch __P((struct device *, struct cfdata *, void *));
    182 void	hpcfbattach __P((struct device *, struct device *, void *));
    183 int	hpcfbprint __P((void *aux, const char *pnp));
    184 
    185 int	hpcfb_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
    186 paddr_t	hpcfb_mmap __P((void *, off_t, int));
    187 
    188 void	hpcfb_refresh_screen __P((struct hpcfb_softc *sc));
    189 void	hpcfb_doswitch __P((struct hpcfb_softc *sc));
    190 
    191 #ifdef HPCFB_JUMP
    192 static void	hpcfb_create_thread __P((void *));
    193 static void	hpcfb_thread __P((void *));
    194 #endif /* HPCFB_JUMP */
    195 
    196 static int	hpcfb_init __P((struct hpcfb_fbconf *fbconf,
    197 				struct hpcfb_devconfig *dc));
    198 static int	hpcfb_alloc_screen __P((void *, const struct wsscreen_descr *,
    199 				     void **, int *, int *, long *));
    200 static void	hpcfb_free_screen __P((void *, void *));
    201 static int	hpcfb_show_screen __P((void *, void *, int,
    202 				    void (*) (void *, int, int), void *));
    203 static void     hpcfb_pollc __P((void *, int));
    204 static void	hpcfb_power __P((int, void *));
    205 static void	hpcfb_cmap_reorder __P((struct hpcfb_fbconf *,
    206 					struct hpcfb_devconfig *));
    207 
    208 static int	pow __P((int, int));
    209 
    210 void    hpcfb_cursor __P((void *c, int on, int row, int col));
    211 int     hpcfb_mapchar __P((void *, int, unsigned int *));
    212 void    hpcfb_putchar __P((void *c, int row, int col, u_int uc, long attr));
    213 void    hpcfb_copycols __P((void *c, int row, int srccol,
    214 			int dstcol, int ncols));
    215 void    hpcfb_erasecols __P((void *c, int row, int startcol,
    216 			int ncols, long attr));
    217 void    hpcfb_redraw __P((void *c, int row, int nrows, int all));
    218 void    hpcfb_copyrows __P((void *c, int srcrow, int dstrow, int nrows));
    219 void    hpcfb_eraserows __P((void *c, int row, int nrows, long attr));
    220 int     hpcfb_alloc_attr __P((void *c, int fg, int bg, int flags, long *attr));
    221 void    hpcfb_cursor_raw __P((void *c, int on, int row, int col));
    222 
    223 #ifdef HPCFB_JUMP
    224 void	hpcfb_update __P((void *));
    225 void	hpcfb_do_scroll __P((void *));
    226 void	hpcfb_check_update __P((void *));
    227 #endif /* HPCFB_JUMP */
    228 
    229 struct wsdisplay_emulops hpcfb_emulops = {
    230 	hpcfb_cursor,
    231 	hpcfb_mapchar,
    232 	hpcfb_putchar,
    233 	hpcfb_copycols,
    234 	hpcfb_erasecols,
    235 	hpcfb_copyrows,
    236 	hpcfb_eraserows,
    237 	hpcfb_alloc_attr
    238 };
    239 
    240 /*
    241  *  static variables
    242  */
    243 struct cfattach hpcfb_ca = {
    244 	sizeof(struct hpcfb_softc), hpcfbmatch, hpcfbattach,
    245 };
    246 
    247 struct wsscreen_descr hpcfb_stdscreen = {
    248 	"std",
    249 	0, 0,	/* will be filled in -- XXX shouldn't, it's global */
    250 	&hpcfb_emulops,	/* XXX */
    251 	0, 0,
    252 	WSSCREEN_REVERSE
    253 };
    254 
    255 const struct wsscreen_descr *_hpcfb_scrlist[] = {
    256 	&hpcfb_stdscreen,
    257 	/* XXX other formats, graphics screen? */
    258 };
    259 
    260 struct wsscreen_list hpcfb_screenlist = {
    261 	sizeof(_hpcfb_scrlist) / sizeof(struct wsscreen_descr *),
    262 	_hpcfb_scrlist
    263 };
    264 
    265 struct wsdisplay_accessops hpcfb_accessops = {
    266 	hpcfb_ioctl,
    267 	hpcfb_mmap,
    268 	hpcfb_alloc_screen,
    269 	hpcfb_free_screen,
    270 	hpcfb_show_screen,
    271 	0 /* load_font */,
    272 	hpcfb_pollc
    273 };
    274 
    275 void    hpcfb_tv_putchar __P((struct hpcfb_devconfig *, int, int, u_int, long));
    276 void    hpcfb_tv_copycols __P((struct hpcfb_devconfig *, int, int, int, int));
    277 void    hpcfb_tv_erasecols __P((struct hpcfb_devconfig *, int, int, int, long));
    278 void    hpcfb_tv_copyrows __P((struct hpcfb_devconfig *, int, int, int));
    279 void    hpcfb_tv_eraserows __P((struct hpcfb_devconfig *, int, int, long));
    280 
    281 struct wsdisplay_emulops rasops_emul;
    282 
    283 static int hpcfbconsole;
    284 struct hpcfb_devconfig hpcfb_console_dc;
    285 struct wsscreen_descr hpcfb_console_wsscreen;
    286 struct hpcfb_tvrow hpcfb_console_tvram[HPCFB_MAX_ROW];
    287 
    288 /*
    289  *  function bodies
    290  */
    291 static int
    292 pow(int x, int n)
    293 {
    294 	int res = 1;
    295 	while (0 < n--) {
    296 		res *= x;
    297 	}
    298 	return (res);
    299 }
    300 
    301 int
    302 hpcfbmatch(parent, match, aux)
    303 	struct device *parent;
    304 	struct cfdata *match;
    305 	void *aux;
    306 {
    307 	return (1);
    308 }
    309 
    310 void
    311 hpcfbattach(parent, self, aux)
    312 	struct device *parent, *self;
    313 	void *aux;
    314 {
    315 	struct hpcfb_softc *sc = (struct hpcfb_softc *)self;
    316 	struct hpcfb_attach_args *ha = aux;
    317 	struct wsemuldisplaydev_attach_args wa;
    318 
    319 	sc->sc_accessops = ha->ha_accessops;
    320 	sc->sc_accessctx = ha->ha_accessctx;
    321 
    322 	if (hpcfbconsole) {
    323 #ifdef HPCFB_MULTI
    324 		sc->screens[0] =
    325 #endif /* HPCFB_MULTI */
    326 		sc->sc_dc = &hpcfb_console_dc;
    327 		sc->nscreens = 1;
    328 		hpcfb_console_dc.dc_sc = sc;
    329 	} else {
    330 #ifdef HPCFB_MULTI
    331 		sc->screens[0] =
    332 #endif /* HPCFB_MULTI */
    333 		sc->sc_dc = (struct hpcfb_devconfig *)
    334 		    malloc(sizeof(struct hpcfb_devconfig), M_DEVBUF, M_WAITOK);
    335 		sc->nscreens = 1;
    336 		bzero(sc->sc_dc, sizeof(struct hpcfb_devconfig));
    337 		if (hpcfb_init(&ha->ha_fbconflist[0], sc->sc_dc) != 0) {
    338 			return;
    339 		}
    340 		sc->sc_dc->dc_tvram = hpcfb_console_tvram;
    341 		bzero(hpcfb_console_tvram, sizeof(hpcfb_console_tvram));
    342 		sc->sc_dc->dc_sc = sc;
    343 	}
    344 	sc->sc_polling = 0; /* XXX */
    345 	sc->sc_mapping = 0; /* XXX */
    346 	callout_init(&sc->sc_switch_callout);
    347 	hpcfb_stdscreen.nrows = sc->sc_dc->dc_rows;
    348         hpcfb_stdscreen.ncols = sc->sc_dc->dc_cols;
    349 	hpcfb_stdscreen.capabilities = sc->sc_dc->dc_rinfo.ri_caps;
    350 	printf(": hpcrasops %dx%d pixels, %d colors, %dx%d chars: ",
    351 	       sc->sc_dc->dc_rinfo.ri_width,
    352 	       sc->sc_dc->dc_rinfo.ri_height,
    353 	       pow(2, sc->sc_dc->dc_rinfo.ri_depth),
    354 	       sc->sc_dc->dc_rinfo.ri_cols,
    355 	       sc->sc_dc->dc_rinfo.ri_rows);
    356 #ifdef HPCFB_MULTI
    357 	printf(" multi");
    358 #endif /* HPCFB_MULTI */
    359 	printf("\n");
    360 
    361 	/* Set video chip dependent CLUT if any. */
    362 	if (hpcfbconsole && sc->sc_accessops->setclut) {
    363 		sc->sc_accessops->setclut(sc->sc_accessctx,
    364 					  &hpcfb_console_dc.dc_rinfo);
    365 	}
    366 
    367 	/* set font for hardware accel */
    368 	if (sc->sc_accessops->font) {
    369 		sc->sc_accessops->font(sc->sc_accessctx,
    370 					sc->sc_dc->dc_rinfo.ri_font);
    371 	}
    372 
    373 	/* Add a power hook to power management */
    374 	sc->sc_powerhook = powerhook_establish(hpcfb_power, sc);
    375 	if (sc->sc_powerhook == NULL)
    376 		printf("%s: WARNING: unable to establish power hook\n",
    377 			sc->sc_dev.dv_xname);
    378 
    379 	wa.console = hpcfbconsole;
    380 	wa.scrdata = &hpcfb_screenlist;
    381 	wa.accessops = &hpcfb_accessops;
    382 	wa.accesscookie = sc;
    383 
    384 	sc->sc_wsdisplay = config_found(self, &wa, wsemuldisplaydevprint);
    385 
    386 #ifdef HPCFB_JUMP
    387 	/*
    388 	 * Create a kernel thread to scroll,
    389 	 */
    390 	kthread_create(hpcfb_create_thread, sc);
    391 #endif /* HPCFB_JUMP */
    392 }
    393 
    394 #ifdef HPCFB_JUMP
    395 void
    396 hpcfb_create_thread(arg)
    397 	void *arg;
    398 {
    399 	struct hpcfb_softc *sc = arg;
    400 
    401 	if (kthread_create1(hpcfb_thread, sc, &sc->sc_thread,
    402 			    "%s", sc->sc_dev.dv_xname) == 0)
    403 		return;
    404 
    405 	/*
    406 	 * We were unable to create the HPCFB thread; bail out.
    407 	 */
    408 	sc->sc_thread = 0;
    409 	printf("%s: unable to create thread, kernel hpcfb scroll support disabled\n",
    410 	       sc->sc_dev.dv_xname);
    411 }
    412 
    413 void
    414 hpcfb_thread(arg)
    415 	void *arg;
    416 {
    417 	struct hpcfb_softc *sc = arg;
    418 
    419 	/*
    420 	 * Loop forever, doing a periodic check for update events.
    421 	 */
    422 	for (;;) {
    423 		/* HPCFB_LOCK(sc); */
    424 		sc->sc_dc->dc_state |= HPCFB_DC_SCRTHREAD;
    425 		if (!sc->sc_mapping) /* draw only EMUL mode */
    426 			hpcfb_update(sc->sc_dc);
    427 		sc->sc_dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
    428 		/* APM_UNLOCK(sc); */
    429 		(void) tsleep(sc, PWAIT, "hpcfb",  (8 * hz) / 7 / 10);
    430 	}
    431 }
    432 #endif /* HPCFB_JUMP */
    433 
    434 /* Print function (for parent devices). */
    435 int
    436 hpcfbprint(aux, pnp)
    437 	void *aux;
    438 	const char *pnp;
    439 {
    440 	if (pnp)
    441 		printf("hpcfb at %s", pnp);
    442 
    443 	return (UNCONF);
    444 }
    445 
    446 int
    447 hpcfb_cnattach(fbconf)
    448 	struct hpcfb_fbconf *fbconf;
    449 {
    450 	struct hpcfb_fbconf __fbconf __attribute__((__unused__));
    451 	long defattr;
    452 
    453 #if NBIVIDEO > 0
    454 	if (fbconf == 0) {
    455 		memset(&__fbconf, 0, sizeof(struct hpcfb_fbconf));
    456 		if (bivideo_getcnfb(&__fbconf) != 0)
    457 			return (ENXIO);
    458 		fbconf = &__fbconf;
    459 	}
    460 #endif /* NBIVIDEO > 0 */
    461 	bzero(&hpcfb_console_dc, sizeof(struct hpcfb_devconfig));
    462 	if (hpcfb_init(fbconf, &hpcfb_console_dc) != 0)
    463 		return (ENXIO);
    464 
    465 	hpcfb_console_dc.dc_tvram = hpcfb_console_tvram;
    466 	bzero(hpcfb_console_tvram, sizeof(hpcfb_console_tvram));
    467 
    468 	hpcfb_console_wsscreen = hpcfb_stdscreen;
    469 	hpcfb_console_wsscreen.nrows = hpcfb_console_dc.dc_rows;
    470 	hpcfb_console_wsscreen.ncols = hpcfb_console_dc.dc_cols;
    471 	hpcfb_console_wsscreen.capabilities = hpcfb_console_dc.dc_rinfo.ri_caps;
    472 	hpcfb_alloc_attr(&hpcfb_console_dc, 7, 0, 0, &defattr);
    473 	wsdisplay_cnattach(&hpcfb_console_wsscreen, &hpcfb_console_dc,
    474 			   0, 0, defattr);
    475 	hpcfbconsole = 1;
    476 
    477 	return (0);
    478 }
    479 
    480 int
    481 hpcfb_init(fbconf, dc)
    482 	struct hpcfb_fbconf *fbconf;
    483 	struct hpcfb_devconfig *dc;
    484 {
    485 	struct rasops_info *ri;
    486 	vaddr_t fbaddr;
    487 
    488 	fbaddr = (vaddr_t)fbconf->hf_baseaddr;
    489 	dc->dc_fbaddr = (u_char *)fbaddr;
    490 
    491 	/* init rasops */
    492 	ri = &dc->dc_rinfo;
    493 	bzero(ri, sizeof(struct rasops_info));
    494 	ri->ri_depth = fbconf->hf_pixel_width;
    495 	ri->ri_bits = (caddr_t)fbaddr;
    496 	ri->ri_width = fbconf->hf_width;
    497 	ri->ri_height = fbconf->hf_height;
    498 	ri->ri_stride = fbconf->hf_bytes_per_line;
    499 #if 0
    500 	ri->ri_flg = RI_FORCEMONO | RI_CURSOR;
    501 #else
    502 	ri->ri_flg = RI_CURSOR;
    503 #endif
    504 	if (rasops_init(ri, HPCFB_MAX_ROW, HPCFB_MAX_COLUMN)) {
    505 		panic("%s(%d): rasops_init() failed!", __FILE__, __LINE__);
    506 	}
    507 
    508 	/* over write color map of rasops */
    509 	hpcfb_cmap_reorder (fbconf, dc);
    510 
    511 	dc->dc_curx = -1;
    512 	dc->dc_cury = -1;
    513 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    514 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    515 	dc->dc_state |= HPCFB_DC_CURRENT;
    516 #ifdef HPCFB_JUMP
    517 	dc->dc_max_row = 0;
    518 	dc->dc_min_row = dc->dc_rows;
    519 	dc->dc_scroll = 0;
    520 	callout_init(&dc->dc_scroll_ch);
    521 #endif /* HPCFB_JUMP */
    522 #if defined(HPCFB_MULTI)
    523 	dc->dc_memsize = ri->ri_stride * ri->ri_height;
    524 #endif /*  defined(HPCFB_MULTI) */
    525 #ifdef HPCFB_MULTI
    526 	dc->dc_scrno = 0;
    527 #endif /* HPCFB_MULTI */
    528 	/* hook rasops in hpcfb_ops */
    529 	rasops_emul = ri->ri_ops; /* struct copy */
    530 	ri->ri_ops = hpcfb_emulops; /* struct copy */
    531 
    532 	return (0);
    533 }
    534 
    535 static void
    536 hpcfb_cmap_reorder(fbconf, dc)
    537 	struct hpcfb_fbconf *fbconf;
    538 	struct hpcfb_devconfig *dc;
    539 {
    540 	struct rasops_info *ri = &dc->dc_rinfo;
    541 	int reverse = fbconf->hf_access_flags & HPCFB_ACCESS_REVERSE;
    542 	int *cmap = ri->ri_devcmap;
    543 	vaddr_t fbaddr = (vaddr_t)fbconf->hf_baseaddr;
    544 	int i, j, bg, fg, tmp;
    545 
    546 	/*
    547 	 * Set forground and background so that the screen
    548 	 * looks black on white.
    549 	 * Normally, black = 00 and white = ff.
    550 	 * HPCFB_ACCESS_REVERSE means black = ff and white = 00.
    551 	 */
    552 	switch (fbconf->hf_pixel_width) {
    553 	case 1:
    554 		/* FALLTHROUGH */
    555 	case 2:
    556 		/* FALLTHROUGH */
    557 	case 4:
    558 		if (reverse) {
    559 			bg = 0;
    560 			fg = ~0;
    561 		} else {
    562 			bg = ~0;
    563 			fg = 0;
    564 		}
    565 		/* for gray-scale LCD, hi-contrast color map */
    566 		cmap[0] = bg;
    567 		for (i = 1; i < 16; i++)
    568 			cmap[i] = fg;
    569 		break;
    570 	case 8:
    571 		/* FALLTHROUGH */
    572 	case 16:
    573 		if (reverse) {
    574 			for (i = 0, j = 15; i < 8; i++, j--) {
    575 				tmp = cmap[i];
    576 				cmap[i] = cmap[j];
    577 				cmap[j] = tmp;
    578 			}
    579 		}
    580 		break;
    581 	}
    582 
    583 	/* clear the screen */
    584 	bg = cmap[0];
    585 	for (i = 0;
    586 	     i < fbconf->hf_height * fbconf->hf_bytes_per_line;
    587 	     i += sizeof(u_int32_t)) {
    588 		*(u_int32_t *)(fbaddr + i) = bg;
    589 	}
    590 }
    591 
    592 int
    593 hpcfb_ioctl(v, cmd, data, flag, p)
    594 	void *v;
    595 	u_long cmd;
    596 	caddr_t data;
    597 	int flag;
    598 	struct proc *p;
    599 {
    600 	struct hpcfb_softc *sc = v;
    601 	struct hpcfb_devconfig *dc = sc->sc_dc;
    602 	struct wsdisplay_fbinfo *wdf;
    603 
    604 	switch (cmd) {
    605 	case WSKBDIO_BELL:
    606 		return (0);
    607 		break;
    608 
    609 	case WSDISPLAYIO_GTYPE:
    610 		*(u_int *)data = WSDISPLAY_TYPE_HPCFB;
    611 		return 0;
    612 
    613 	case WSDISPLAYIO_GINFO:
    614 		wdf = (void *)data;
    615 		wdf->height = dc->dc_rinfo.ri_height;
    616 		wdf->width = dc->dc_rinfo.ri_width;
    617 		wdf->depth = dc->dc_rinfo.ri_depth;
    618 		wdf->cmsize = 256;	/* XXXX */
    619 		return 0;
    620 
    621 	case WSDISPLAYIO_SMODE:
    622 		if (*(int *)data == WSDISPLAYIO_MODE_EMUL){
    623 			if (sc->sc_mapping){
    624 				sc->sc_mapping = 0;
    625 				if (dc->dc_state&HPCFB_DC_DRAWING)
    626 					dc->dc_state &= ~HPCFB_DC_ABORT;
    627 #ifdef HPCFB_FORCE_REDRAW
    628 				hpcfb_refresh_screen(sc);
    629 #else
    630 				dc->dc_state |= HPCFB_DC_UPDATEALL;
    631 #endif
    632 			}
    633 		} else {
    634 			if (!sc->sc_mapping) {
    635 				sc->sc_mapping = 1;
    636 				dc->dc_state |= HPCFB_DC_ABORT;
    637 			}
    638 			sc->sc_mapping = 1;
    639 		}
    640 		if (sc && sc->sc_accessops->iodone)
    641 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    642 		return 0;
    643 
    644 	case WSDISPLAYIO_GETCMAP:
    645 	case WSDISPLAYIO_PUTCMAP:
    646 	case WSDISPLAYIO_GETPARAM:
    647 	case WSDISPLAYIO_SETPARAM:
    648 	case HPCFBIO_GCONF:
    649 	case HPCFBIO_SCONF:
    650 	case HPCFBIO_GDSPCONF:
    651 	case HPCFBIO_SDSPCONF:
    652 	case HPCFBIO_GOP:
    653 	case HPCFBIO_SOP:
    654 		return (*sc->sc_accessops->ioctl)(sc->sc_accessctx,
    655 						  cmd, data, flag, p);
    656 
    657 	default:
    658 		if (IOCGROUP(cmd) != 't')
    659 			DPRINTF(("%s(%d): hpcfb_ioctl(%lx, %lx) grp=%c num=%ld\n",
    660 			 __FILE__, __LINE__,
    661 			 cmd, (u_long)data, (char)IOCGROUP(cmd), cmd&0xff));
    662 		break;
    663 	}
    664 
    665 	return (ENOTTY); /* Inappropriate ioctl for device */
    666 }
    667 
    668 paddr_t
    669 hpcfb_mmap(v, offset, prot)
    670 	void *v;
    671 	off_t offset;
    672 	int prot;
    673 {
    674 	struct hpcfb_softc *sc = v;
    675 
    676 	return (*sc->sc_accessops->mmap)(sc->sc_accessctx, offset, prot);
    677 }
    678 
    679 static void
    680 hpcfb_power(why, arg)
    681 	int why;
    682 	void *arg;
    683 {
    684 	struct hpcfb_softc *sc = arg;
    685 
    686 	switch (why) {
    687 	case PWR_STANDBY:
    688 		break;
    689 	case PWR_SOFTSUSPEND:
    690 		/* XXX, casting to 'struct wsdisplay_softc *' means
    691 		   that you should not call the method here... */
    692 		sc->sc_screen_resumed = wsdisplay_getactivescreen(
    693 			(struct wsdisplay_softc *)sc->sc_wsdisplay);
    694 		if (wsdisplay_switch(sc->sc_wsdisplay,
    695 		    WSDISPLAY_NULLSCREEN,
    696 		    1 /* waitok */) == 0) {
    697 			wsscreen_switchwait(
    698 				(struct wsdisplay_softc *)sc->sc_wsdisplay,
    699 				WSDISPLAY_NULLSCREEN);
    700 		} else {
    701 			sc->sc_screen_resumed = WSDISPLAY_NULLSCREEN;
    702 		}
    703 		break;
    704 	case PWR_SOFTRESUME:
    705 		if (sc->sc_screen_resumed != WSDISPLAY_NULLSCREEN)
    706 			wsdisplay_switch(sc->sc_wsdisplay,
    707 			    sc->sc_screen_resumed,
    708 			    1 /* waitok */);
    709 		break;
    710 	}
    711 }
    712 
    713 void
    714 hpcfb_refresh_screen(sc)
    715 	struct hpcfb_softc *sc;
    716 {
    717 	struct hpcfb_devconfig *dc = sc->sc_dc;
    718 	int x, y;
    719 
    720 	if (dc == NULL)
    721 		return;
    722 
    723 #ifdef HPCFB_JUMP
    724 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    725 		dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
    726 		dc->dc_state &= ~HPCFB_DC_UPDATE;
    727 		callout_stop(&dc->dc_scroll_ch);
    728 	}
    729 #endif /* HPCFB_JUMP */
    730 	/*
    731 	 * refresh screen
    732 	 */
    733 	dc->dc_state &= ~HPCFB_DC_UPDATEALL;
    734 	x = dc->dc_curx;
    735 	y = dc->dc_cury;
    736 	if (0 <= x && 0 <= y)
    737 		hpcfb_cursor_raw(dc, 0,  y, x); /* disable cursor */
    738 	/* redraw all text */
    739 	hpcfb_redraw(dc, 0, dc->dc_rows, 1);
    740 	if (0 <= x && 0 <= y)
    741 		hpcfb_cursor_raw(dc, 1,  y, x); /* enable cursor */
    742 }
    743 
    744 static int
    745 hpcfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
    746 	void *v;
    747 	const struct wsscreen_descr *type;
    748 	void **cookiep;
    749 	int *curxp, *curyp;
    750 	long *attrp;
    751 {
    752 	struct hpcfb_softc *sc = v;
    753 #ifdef HPCFB_MULTI
    754 	struct hpcfb_devconfig *dc;
    755 #endif /* HPCFB_MULTI */
    756 
    757 	DPRINTF(("%s(%d): hpcfb_alloc_screen()\n", __FILE__, __LINE__));
    758 
    759 #ifdef HPCFB_MULTI
    760 	if (!hpcfbconsole && sc->nscreens > 0)	/* XXXXX */
    761 		return ENOMEM;
    762 
    763 	if (sc->nscreens > HPCFB_MAX_SCREEN)
    764 		return (ENOMEM);
    765 
    766 	if (sc->screens[sc->nscreens] == NULL){
    767 		sc->screens[sc->nscreens] =
    768 			malloc(sizeof(struct hpcfb_devconfig), M_DEVBUF, M_WAITOK);
    769 		if (sc->screens[sc->nscreens] == NULL)
    770 			return ENOMEM;
    771 		bzero(sc->screens[sc->nscreens], sizeof(struct hpcfb_devconfig));
    772 	}
    773 	dc = sc->screens[sc->nscreens];
    774 	dc->dc_sc = sc;
    775 
    776 	/* copy master raster info */
    777 	dc->dc_rinfo = sc->sc_dc->dc_rinfo;
    778 	if (sc->sc_accessops->font) {
    779 		sc->sc_accessops->font(sc->sc_accessctx,
    780 					sc->sc_dc->dc_rinfo.ri_font);
    781 	}
    782 
    783 	dc->dc_fbaddr = dc->dc_rinfo.ri_bits;
    784 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    785 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    786 	dc->dc_memsize = dc->dc_rinfo.ri_stride * dc->dc_rinfo.ri_height;
    787 
    788 	dc->dc_scrno = sc->nscreens;
    789 	dc->dc_curx = -1;
    790 	dc->dc_cury = -1;
    791 	if (dc->dc_tvram == NULL){
    792 		dc->dc_tvram =
    793 			malloc(sizeof(struct hpcfb_tvrow)*dc->dc_rows,
    794 				M_DEVBUF, M_WAITOK);
    795 		if (dc->dc_tvram == NULL){
    796 			free(sc->screens[sc->nscreens], M_DEVBUF);
    797 			sc->screens[sc->nscreens] = NULL;
    798 			return ENOMEM;
    799 		}
    800 		bzero(dc->dc_tvram,
    801 				sizeof(struct hpcfb_tvrow)*dc->dc_rows);
    802 	}
    803 
    804 	*curxp = 0;
    805 	*curyp = 0;
    806 	sc->nscreens++;
    807 	*cookiep = dc;
    808 	hpcfb_alloc_attr(*cookiep, 7, 0, 0, attrp);
    809 #else /* HPCFB_MULTI */
    810 	if (sc->nscreens > 0)
    811 		return (ENOMEM);
    812 	*curxp = 0;
    813 	*curyp = 0;
    814 	sc->nscreens++;
    815 	*cookiep = &sc->sc_dc->dc_rinfo;
    816 	sc->sc_dc->dc_rinfo.ri_ops.alloc_attr(*cookiep,
    817 					      7, 0, 0, attrp);
    818 #endif /* HPCFB_MULTI */
    819 	return (0);
    820 }
    821 
    822 static void
    823 hpcfb_free_screen(v, cookie)
    824 	void *v;
    825 	void *cookie;
    826 {
    827 	struct hpcfb_softc *sc = v;
    828 
    829 #ifdef HPCFB_MULTI
    830 	if (sc->nscreens == 1 && sc->sc_dc == &hpcfb_console_dc)
    831 		panic("hpcfb_free_screen: console");
    832 	sc->nscreens--;
    833 #else /* HPCFB_MULTI */
    834 	if (sc->sc_dc == &hpcfb_console_dc)
    835 		panic("hpcfb_free_screen: console");
    836 
    837 	sc->nscreens--;
    838 #endif /* HPCFB_MULTI */
    839 }
    840 
    841 static int
    842 hpcfb_show_screen(v, cookie, waitok, cb, cbarg)
    843 	void *v;
    844 	void *cookie;
    845 	int waitok;
    846 	void (*cb) __P((void *, int, int));
    847 	void *cbarg;
    848 {
    849 	struct hpcfb_softc *sc = v;
    850 #ifdef HPCFB_MULTI
    851 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    852 	struct hpcfb_devconfig *odc;
    853 #endif /* HPCFB_MULTI */
    854 
    855 	DPRINTF(("%s(%d): hpcfb_show_screen()\n", __FILE__, __LINE__));
    856 
    857 #ifdef HPCFB_MULTI
    858 	odc = sc->sc_dc;
    859 
    860 	if (dc == NULL || odc == dc) {
    861 		hpcfb_refresh_screen(sc);
    862 		return 0;
    863 	}
    864 
    865 	sc->sc_wantedscreen = cookie;
    866 	sc->sc_switchcb = cb;
    867 	sc->sc_switchcbarg = cbarg;
    868 	if (cb) {
    869 		callout_reset(&sc->sc_switch_callout, 0,
    870 			(void(*)(void *))hpcfb_doswitch, sc);
    871 		return EAGAIN;
    872 	}
    873 
    874 	hpcfb_doswitch(sc);
    875 	return 0;
    876 #else /* HPCFB_MULTI */
    877 	/* redraw screen image */
    878 	hpcfb_refresh_screen(sc);
    879 
    880 	return (0);
    881 #endif /* HPCFB_MULTI */
    882 }
    883 
    884 void
    885 hpcfb_doswitch(sc)
    886 	struct hpcfb_softc *sc;
    887 {
    888 	struct hpcfb_devconfig *dc;
    889 	struct hpcfb_devconfig *odc;
    890 
    891 	odc = sc->sc_dc;
    892 	dc = sc->sc_wantedscreen;
    893 
    894 	if (!dc) {
    895 		(*sc->sc_switchcb)(sc->sc_switchcbarg, EIO, 0);
    896 		return;
    897 	}
    898 
    899 	if (odc == dc)
    900 		return;
    901 
    902 	if (odc) {
    903 #ifdef HPCFB_JUMP
    904 		odc->dc_state |= HPCFB_DC_ABORT;
    905 #endif /* HPCFB_JUMP */
    906 
    907 		if (odc->dc_curx >= 0 && odc->dc_cury >= 0)
    908 			hpcfb_cursor_raw(odc, 0,  odc->dc_cury, odc->dc_curx);
    909 			 /* disable cursor */
    910 		/* disable old screen */
    911 		odc->dc_state &= ~HPCFB_DC_CURRENT;
    912 		odc->dc_rinfo.ri_bits = NULL;
    913 	}
    914 	/* switch screen to new one */
    915 	dc->dc_state |= HPCFB_DC_CURRENT;
    916 	dc->dc_rinfo.ri_bits = dc->dc_fbaddr;
    917 	sc->sc_dc = dc;
    918 
    919 	/* redraw screen image */
    920 	hpcfb_refresh_screen(sc);
    921 
    922 	sc->sc_wantedscreen = NULL;
    923 	if (sc->sc_switchcb)
    924 		(*sc->sc_switchcb)(sc->sc_switchcbarg, 0, 0);
    925 
    926 	return;
    927 }
    928 
    929 static void
    930 hpcfb_pollc(v, on)
    931 	void *v;
    932 	int on;
    933 {
    934 	struct hpcfb_softc *sc = v;
    935 
    936 	if (sc == NULL)
    937 		return;
    938 	sc->sc_polling = on;
    939 	if (sc->sc_accessops->iodone)
    940 		(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    941 	if (on) {
    942 		hpcfb_refresh_screen(sc);
    943 		if (sc->sc_accessops->iodone)
    944 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    945 	}
    946 
    947 	return;
    948 }
    949 
    950 /*
    951  * cursor
    952  */
    953 void
    954 hpcfb_cursor(cookie, on, row, col)
    955 	void *cookie;
    956 	int on, row, col;
    957 {
    958 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    959 
    960 	if (on) {
    961 		dc->dc_curx = col;
    962 		dc->dc_cury = row;
    963 	} else {
    964 		dc->dc_curx = -1;
    965 		dc->dc_cury = -1;
    966 	}
    967 
    968 	hpcfb_cursor_raw(cookie, on, row, col);
    969 }
    970 
    971 void
    972 hpcfb_cursor_raw(cookie, on, row, col)
    973 	void *cookie;
    974 	int on, row, col;
    975 {
    976 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    977 	struct hpcfb_softc *sc = dc->dc_sc;
    978 	struct rasops_info *ri = &dc->dc_rinfo;
    979 	int curwidth, curheight;
    980 	int xoff, yoff;
    981 
    982 #ifdef HPCFB_JUMP
    983 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    984 		dc->dc_state |= HPCFB_DC_UPDATE;
    985 		return;
    986 	}
    987 #endif /* HPCFB_JUMP */
    988 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
    989 		return;
    990 
    991 	if (ri->ri_bits == NULL)
    992 		return;
    993 
    994 	dc->dc_state |= HPCFB_DC_DRAWING;
    995 	if (sc && sc->sc_accessops->cursor) {
    996 		xoff = col * ri->ri_font->fontwidth;
    997 		yoff = row * ri->ri_font->fontheight;
    998 		curheight = ri->ri_font->fontheight;
    999 		curwidth = ri->ri_font->fontwidth;
   1000 		(*sc->sc_accessops->cursor)(sc->sc_accessctx,
   1001 				on, xoff, yoff, curwidth, curheight);
   1002 	} else
   1003 		rasops_emul.cursor(ri, on, row, col);
   1004 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1005 }
   1006 
   1007 /*
   1008  * mapchar
   1009  */
   1010 int
   1011 hpcfb_mapchar(cookie, c, cp)
   1012 	void *cookie;
   1013 	int c;
   1014 	unsigned int *cp;
   1015 {
   1016 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1017 	struct rasops_info *ri = &dc->dc_rinfo;
   1018 
   1019 	return rasops_emul.mapchar(ri, c, cp);
   1020 }
   1021 
   1022 /*
   1023  * putchar
   1024  */
   1025 void
   1026 hpcfb_tv_putchar(dc, row, col, uc, attr)
   1027 	struct hpcfb_devconfig *dc;
   1028 	int row, col;
   1029 	u_int uc;
   1030 	long attr;
   1031 {
   1032 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1033 	struct hpcfb_vchar *vc = &vscn[row].col[col];
   1034 	struct hpcfb_vchar *vcb;
   1035 
   1036 	if (vscn == 0)
   1037 		return;
   1038 
   1039 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1040 #ifdef HPCFB_JUMP
   1041 	if (row < dc->dc_min_row)
   1042 		dc->dc_min_row = row;
   1043 	if (row > dc->dc_max_row)
   1044 		dc->dc_max_row = row;
   1045 
   1046 #endif /* HPCFB_JUMP */
   1047 	if (vscn[row].maxcol +1 == col)
   1048 		vscn[row].maxcol = col;
   1049 	else if (vscn[row].maxcol < col) {
   1050 		vcb =  &vscn[row].col[vscn[row].maxcol+1];
   1051 		bzero(vcb, sizeof(struct hpcfb_vchar)*(col-vscn[row].maxcol-1));
   1052 		vscn[row].maxcol = col;
   1053 	}
   1054 	vc->c = uc;
   1055 	vc->attr = attr;
   1056 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1057 #ifdef HPCFB_JUMP
   1058 	hpcfb_check_update(dc);
   1059 #endif /* HPCFB_JUMP */
   1060 }
   1061 
   1062 void
   1063 hpcfb_putchar(cookie, row, col, uc, attr)
   1064 	void *cookie;
   1065 	int row, col;
   1066 	u_int uc;
   1067 	long attr;
   1068 {
   1069 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1070 	struct hpcfb_softc *sc = dc->dc_sc;
   1071 	struct rasops_info *ri = &dc->dc_rinfo;
   1072 	int xoff;
   1073 	int yoff;
   1074 	int fclr, uclr;
   1075 	struct wsdisplay_font *font;
   1076 
   1077 	hpcfb_tv_putchar(dc, row, col, uc, attr);
   1078 #ifdef HPCFB_JUMP
   1079 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1080 		dc->dc_state |= HPCFB_DC_UPDATE;
   1081 		return;
   1082 	}
   1083 #endif /* HPCFB_JUMP */
   1084 
   1085 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1086 		return;
   1087 	if (ri->ri_bits == NULL)
   1088 		return;
   1089 
   1090 	dc->dc_state |= HPCFB_DC_DRAWING;
   1091 	if (sc && sc->sc_accessops->putchar
   1092 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1093 		font = ri->ri_font;
   1094 		yoff = row * ri->ri_font->fontheight;
   1095 		xoff =  col * ri->ri_font->fontwidth;
   1096 		fclr = ri->ri_devcmap[((u_int)attr >> 24) & 15];
   1097 		uclr = ri->ri_devcmap[((u_int)attr >> 16) & 15];
   1098 
   1099 		(*sc->sc_accessops->putchar)(sc->sc_accessctx,
   1100 				xoff, yoff, font, fclr, uclr, uc, attr);
   1101 	} else
   1102 		rasops_emul.putchar(ri, row, col, uc, attr);
   1103 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1104 #ifdef HPCFB_JUMP
   1105 	hpcfb_check_update(dc);
   1106 #endif /* HPCFB_JUMP */
   1107 }
   1108 
   1109 /*
   1110  * copycols
   1111  */
   1112 void
   1113 hpcfb_tv_copycols(dc, row, srccol, dstcol, ncols)
   1114 	struct hpcfb_devconfig *dc;
   1115 	int row, srccol, dstcol, ncols;
   1116 {
   1117 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1118 	struct hpcfb_vchar *svc = &vscn[row].col[srccol];
   1119 	struct hpcfb_vchar *dvc = &vscn[row].col[dstcol];
   1120 
   1121 	if (vscn == 0)
   1122 		return;
   1123 
   1124 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1125 #ifdef HPCFB_JUMP
   1126 	if (row < dc->dc_min_row)
   1127 		dc->dc_min_row = row;
   1128 	if (row > dc->dc_max_row)
   1129 		dc->dc_max_row = row;
   1130 #endif /* HPCFB_JUMP */
   1131 
   1132 	bcopy(svc, dvc, ncols*sizeof(struct hpcfb_vchar));
   1133 	if (vscn[row].maxcol < srccol+ncols-1)
   1134 		vscn[row].maxcol = srccol+ncols-1;
   1135 	if (vscn[row].maxcol < dstcol+ncols-1)
   1136 		vscn[row].maxcol = dstcol+ncols-1;
   1137 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1138 #ifdef HPCFB_JUMP
   1139 	hpcfb_check_update(dc);
   1140 #endif /* HPCFB_JUMP */
   1141 }
   1142 
   1143 void
   1144 hpcfb_copycols(cookie, row, srccol, dstcol, ncols)
   1145 	void *cookie;
   1146 	int row, srccol, dstcol, ncols;
   1147 {
   1148 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1149 	struct hpcfb_softc *sc = dc->dc_sc;
   1150 	struct rasops_info *ri = &dc->dc_rinfo;
   1151 	int srcxoff,dstxoff;
   1152 	int srcyoff,dstyoff;
   1153 	int height, width;
   1154 
   1155 	hpcfb_tv_copycols(dc, row, srccol, dstcol, ncols);
   1156 #ifdef HPCFB_JUMP
   1157 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1158 		dc->dc_state |= HPCFB_DC_UPDATE;
   1159 		return;
   1160 	}
   1161 #endif /* HPCFB_JUMP */
   1162 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1163 		return;
   1164 	if (ri->ri_bits == NULL)
   1165 		return;
   1166 
   1167 	dc->dc_state |= HPCFB_DC_DRAWING;
   1168 	if (sc && sc->sc_accessops->bitblit
   1169 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1170 		srcxoff = srccol * ri->ri_font->fontwidth;
   1171 		srcyoff = row * ri->ri_font->fontheight;
   1172 		dstxoff = dstcol * ri->ri_font->fontwidth;
   1173 		dstyoff = row * ri->ri_font->fontheight;
   1174 		width = ncols * ri->ri_font->fontwidth;
   1175 		height = ri->ri_font->fontheight;
   1176 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1177 			srcxoff, srcyoff, dstxoff, dstyoff, height, width);
   1178 	} else
   1179 		rasops_emul.copycols(ri, row, srccol, dstcol, ncols);
   1180 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1181 #ifdef HPCFB_JUMP
   1182 	hpcfb_check_update(dc);
   1183 #endif /* HPCFB_JUMP */
   1184 }
   1185 
   1186 
   1187 /*
   1188  * erasecols
   1189  */
   1190 void
   1191 hpcfb_tv_erasecols(dc, row, startcol, ncols, attr)
   1192 	struct hpcfb_devconfig *dc;
   1193 	int row, startcol, ncols;
   1194 	long attr;
   1195 {
   1196 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1197 
   1198 	if (vscn == 0)
   1199 		return;
   1200 
   1201 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1202 #ifdef HPCFB_JUMP
   1203 	if (row < dc->dc_min_row)
   1204 		dc->dc_min_row = row;
   1205 	if (row > dc->dc_max_row)
   1206 		dc->dc_max_row = row;
   1207 #endif /* HPCFB_JUMP */
   1208 
   1209 	vscn[row].maxcol = startcol-1;
   1210 	if (vscn[row].spacecol < startcol+ncols-1)
   1211 		vscn[row].spacecol = startcol+ncols-1;
   1212 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1213 #ifdef HPCFB_JUMP
   1214 	hpcfb_check_update(dc);
   1215 #endif /* HPCFB_JUMP */
   1216 }
   1217 
   1218 void
   1219 hpcfb_erasecols(cookie, row, startcol, ncols, attr)
   1220 	void *cookie;
   1221 	int row, startcol, ncols;
   1222 	long attr;
   1223 {
   1224 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1225 	struct hpcfb_softc *sc = dc->dc_sc;
   1226 	struct rasops_info *ri = &dc->dc_rinfo;
   1227 	int xoff, yoff;
   1228 	int width, height;
   1229 
   1230 	hpcfb_tv_erasecols(dc, row, startcol, ncols, attr);
   1231 #ifdef HPCFB_JUMP
   1232 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1233 		dc->dc_state |= HPCFB_DC_UPDATE;
   1234 		return;
   1235 	}
   1236 #endif /* HPCFB_JUMP */
   1237 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1238 		return;
   1239 	if (ri->ri_bits == NULL)
   1240 		return;
   1241 
   1242 	dc->dc_state |= HPCFB_DC_DRAWING;
   1243 	if (sc && sc->sc_accessops->erase
   1244 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1245 		xoff = startcol * ri->ri_font->fontwidth;
   1246 		yoff = row * ri->ri_font->fontheight;
   1247 		width = ncols * ri->ri_font->fontwidth;
   1248 		height = ri->ri_font->fontheight;
   1249 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1250 			xoff, yoff, height, width, attr);
   1251 	} else
   1252 		rasops_emul.erasecols(ri, row, startcol, ncols, attr);
   1253 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1254 #ifdef HPCFB_JUMP
   1255 	hpcfb_check_update(dc);
   1256 #endif /* HPCFB_JUMP */
   1257 }
   1258 
   1259 /*
   1260  * Copy rows.
   1261  */
   1262 void
   1263 hpcfb_tv_copyrows(dc, src, dst, num)
   1264 	struct hpcfb_devconfig *dc;
   1265 	int src, dst, num;
   1266 {
   1267 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1268 	struct hpcfb_tvrow *svc = &vscn[src];
   1269 	struct hpcfb_tvrow *dvc = &vscn[dst];
   1270 	int i;
   1271 	int d;
   1272 
   1273 	if (vscn == 0)
   1274 		return;
   1275 
   1276 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1277 #ifdef HPCFB_JUMP
   1278 	if (dst < dc->dc_min_row)
   1279 		dc->dc_min_row = dst;
   1280 	if (dst + num > dc->dc_max_row)
   1281 		dc->dc_max_row = dst + num -1;
   1282 #endif /* HPCFB_JUMP */
   1283 
   1284 	if (svc > dvc)
   1285 		d = 1;
   1286 	else if (svc < dvc) {
   1287 		svc += num-1;
   1288 		dvc += num-1;
   1289 		d = -1;
   1290 	} else  {
   1291 		dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1292 #ifdef HPCFB_JUMP
   1293 		hpcfb_check_update(dc);
   1294 #endif /* HPCFB_JUMP */
   1295 		return;
   1296 	}
   1297 
   1298 	for (i = 0; i < num; i++) {
   1299 		bcopy(&svc->col[0], &dvc->col[0], sizeof(struct hpcfb_vchar)*(svc->maxcol+1));
   1300 		if (svc->maxcol < dvc->maxcol && dvc->spacecol < dvc->maxcol)
   1301 			dvc->spacecol = dvc->maxcol;
   1302 		dvc->maxcol = svc->maxcol;
   1303 		svc+=d;
   1304 		dvc+=d;
   1305 	}
   1306 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1307 #ifdef HPCFB_JUMP
   1308 	hpcfb_check_update(dc);
   1309 #endif /* HPCFB_JUMP */
   1310 }
   1311 
   1312 void
   1313 hpcfb_redraw(cookie, row, num, all)
   1314 	void *cookie;
   1315 	int row, num;
   1316 	int all;
   1317 {
   1318 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1319 	struct rasops_info *ri = &dc->dc_rinfo;
   1320 	int cols;
   1321 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1322 	struct hpcfb_vchar *svc;
   1323 	int i, j;
   1324 
   1325 #ifdef HPCFB_JUMP
   1326 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1327 		dc->dc_state |= HPCFB_DC_UPDATE;
   1328 		return;
   1329 	}
   1330 #endif /* HPCFB_JUMP */
   1331 	if (dc->dc_sc != NULL
   1332 	    && !dc->dc_sc->sc_polling
   1333 	    && dc->dc_sc->sc_mapping)
   1334 		return;
   1335 
   1336 	dc->dc_state &= ~HPCFB_DC_ABORT;
   1337 
   1338 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1339 		return;
   1340 	if (vscn == 0)
   1341 		return;
   1342 
   1343 	if (ri->ri_bits == NULL)
   1344 		return;
   1345 
   1346 	dc->dc_state |= HPCFB_DC_DRAWING;
   1347 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1348 	for (i = 0; i < num; i++) {
   1349 		if (dc->dc_state&HPCFB_DC_ABORT)
   1350 			break;
   1351 		cols = vscn[row+i].maxcol;
   1352 		for (j = 0; j <= cols; j++) {
   1353 			if (dc->dc_state&HPCFB_DC_ABORT)
   1354 				continue;
   1355 			svc = &vscn[row+i].col[j];
   1356 			rasops_emul.putchar(ri, row + i, j, svc->c, svc->attr);
   1357 		}
   1358 		if (all)
   1359 			cols = dc->dc_cols-1;
   1360 		else
   1361 			cols = vscn[row+i].spacecol;
   1362 		for (; j <= cols; j++) {
   1363 			if (dc->dc_state&HPCFB_DC_ABORT)
   1364 				continue;
   1365 			rasops_emul.putchar(ri, row + i, j, ' ', 0);
   1366 		}
   1367 		vscn[row+i].spacecol = 0;
   1368 	}
   1369 	if (dc->dc_state&HPCFB_DC_ABORT)
   1370 		dc->dc_state &= ~HPCFB_DC_ABORT;
   1371 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1372 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1373 #ifdef HPCFB_JUMP
   1374 	hpcfb_check_update(dc);
   1375 #endif /* HPCFB_JUMP */
   1376 }
   1377 
   1378 #ifdef HPCFB_JUMP
   1379 void
   1380 hpcfb_update(v)
   1381 	void *v;
   1382 {
   1383 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1384 
   1385 	/* callout_stop(&dc->dc_scroll_ch); */
   1386 	dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1387 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1388 		hpcfb_cursor_raw(dc, 0,  dc->dc_cury, dc->dc_curx);
   1389 	if ((dc->dc_state&HPCFB_DC_UPDATEALL)) {
   1390 		hpcfb_redraw(dc, 0, dc->dc_rows, 1);
   1391 		dc->dc_state &= ~(HPCFB_DC_UPDATE|HPCFB_DC_UPDATEALL);
   1392 	} else if ((dc->dc_state&HPCFB_DC_UPDATE)) {
   1393 		hpcfb_redraw(dc, dc->dc_min_row,
   1394 				dc->dc_max_row - dc->dc_min_row, 0);
   1395 		dc->dc_state &= ~HPCFB_DC_UPDATE;
   1396 	} else {
   1397 		hpcfb_redraw(dc, dc->dc_scroll_dst, dc->dc_scroll_num, 0);
   1398 	}
   1399 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1400 		hpcfb_cursor_raw(dc, 1,  dc->dc_cury, dc->dc_curx);
   1401 }
   1402 
   1403 void
   1404 hpcfb_do_scroll(v)
   1405 	void *v;
   1406 {
   1407 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1408 
   1409 	dc->dc_state |= HPCFB_DC_SCRTHREAD;
   1410 	if (dc->dc_state&(HPCFB_DC_DRAWING|HPCFB_DC_TDRAWING))
   1411 		dc->dc_state |= HPCFB_DC_SCRDELAY;
   1412 	else if (dc->dc_sc != NULL && dc->dc_sc->sc_thread)
   1413 		wakeup(dc->dc_sc);
   1414 	else if (dc->dc_sc != NULL && !dc->dc_sc->sc_mapping) {
   1415 		/* draw only EMUL mode */
   1416 		hpcfb_update(v);
   1417 	}
   1418 	dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
   1419 }
   1420 
   1421 void
   1422 hpcfb_check_update(v)
   1423 	void *v;
   1424 {
   1425 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1426 
   1427 	if (dc->dc_sc != NULL
   1428 		&& dc->dc_sc->sc_polling
   1429 		&& (dc->dc_state&HPCFB_DC_SCROLLPENDING)){
   1430 		callout_stop(&dc->dc_scroll_ch);
   1431 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1432 		hpcfb_update(v);
   1433 	}
   1434 	else if (dc->dc_state&HPCFB_DC_SCRDELAY){
   1435 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1436 		hpcfb_update(v);
   1437 	} else if (dc->dc_state&HPCFB_DC_UPDATEALL){
   1438 		dc->dc_state &= ~HPCFB_DC_UPDATEALL;
   1439 		hpcfb_update(v);
   1440 	}
   1441 }
   1442 #endif /* HPCFB_JUMP */
   1443 
   1444 void
   1445 hpcfb_copyrows(cookie, src, dst, num)
   1446 	void *cookie;
   1447 	int src, dst, num;
   1448 {
   1449 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1450 	struct rasops_info *ri = &dc->dc_rinfo;
   1451 	struct hpcfb_softc *sc = dc->dc_sc;
   1452 	int srcyoff, dstyoff;
   1453 	int width, height;
   1454 
   1455 	hpcfb_tv_copyrows(cookie, src, dst, num);
   1456 
   1457 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1458 		return;
   1459 	if (ri->ri_bits == NULL)
   1460 		return;
   1461 
   1462 	if (sc && sc->sc_accessops->bitblit
   1463 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1464 		dc->dc_state |= HPCFB_DC_DRAWING;
   1465 		srcyoff = src * ri->ri_font->fontheight;
   1466 		dstyoff = dst * ri->ri_font->fontheight;
   1467 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1468 		height = num * ri->ri_font->fontheight;
   1469 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1470 			0, srcyoff, 0, dstyoff, height, width);
   1471 		dc->dc_state &= ~HPCFB_DC_DRAWING;
   1472 	}
   1473 	else {
   1474 #ifdef HPCFB_JUMP
   1475 		if (sc && sc->sc_polling) {
   1476 			hpcfb_check_update(dc);
   1477 		} else if ((dc->dc_state&HPCFB_DC_SCROLLPENDING) == 0) {
   1478 			dc->dc_state |= HPCFB_DC_SCROLLPENDING;
   1479 			dc->dc_scroll = 1;
   1480 			dc->dc_scroll_src = src;
   1481 			dc->dc_scroll_dst = dst;
   1482 			dc->dc_scroll_num = num;
   1483 			callout_reset(&dc->dc_scroll_ch, hz/100, &hpcfb_do_scroll, dc);
   1484 			return;
   1485 		} else if (dc->dc_scroll++ < dc->dc_rows/HPCFB_MAX_JUMP) {
   1486 			dc->dc_state |= HPCFB_DC_UPDATE;
   1487 			return;
   1488 		} else {
   1489 			dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1490 			callout_stop(&dc->dc_scroll_ch);
   1491 		}
   1492 		if (dc->dc_state&HPCFB_DC_UPDATE) {
   1493 			dc->dc_state &= ~HPCFB_DC_UPDATE;
   1494 			hpcfb_redraw(cookie, dc->dc_min_row,
   1495 					dc->dc_max_row - dc->dc_min_row, 0);
   1496 			dc->dc_max_row = 0;
   1497 			dc->dc_min_row = dc->dc_rows;
   1498 			if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1499 				hpcfb_cursor(dc, 1,  dc->dc_cury, dc->dc_curx);
   1500 			return;
   1501 		}
   1502 #endif /* HPCFB_JUMP */
   1503 		hpcfb_redraw(cookie, dst, num, 0);
   1504 	}
   1505 #ifdef HPCFB_JUMP
   1506 	hpcfb_check_update(dc);
   1507 #endif /* HPCFB_JUMP */
   1508 }
   1509 
   1510 /*
   1511  * eraserows
   1512  */
   1513 void
   1514 hpcfb_tv_eraserows(dc, row, nrow, attr)
   1515 	struct hpcfb_devconfig *dc;
   1516 	int row, nrow;
   1517 	long attr;
   1518 {
   1519 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1520 	int cols;
   1521 	int i;
   1522 
   1523 	if (vscn == 0)
   1524 		return;
   1525 
   1526 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1527 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1528 #ifdef HPCFB_JUMP
   1529 	if (row < dc->dc_min_row)
   1530 		dc->dc_min_row = row;
   1531 	if (row + nrow > dc->dc_max_row)
   1532 		dc->dc_max_row = row + nrow;
   1533 #endif /* HPCFB_JUMP */
   1534 
   1535 	for (i = 0; i < nrow; i++) {
   1536 		cols = vscn[row+i].maxcol;
   1537 		if (vscn[row+i].spacecol < cols)
   1538 			vscn[row+i].spacecol = cols;
   1539 		vscn[row+i].maxcol = -1;
   1540 	}
   1541 #ifdef HPCFB_JUMP
   1542 	hpcfb_check_update(dc);
   1543 #endif /* HPCFB_JUMP */
   1544 }
   1545 
   1546 void
   1547 hpcfb_eraserows(cookie, row, nrow, attr)
   1548 	void *cookie;
   1549 	int row, nrow;
   1550 	long attr;
   1551 {
   1552 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1553 	struct hpcfb_softc *sc = dc->dc_sc;
   1554 	struct rasops_info *ri = &dc->dc_rinfo;
   1555 	int yoff;
   1556 	int width;
   1557 	int height;
   1558 
   1559 	hpcfb_tv_eraserows(dc, row, nrow, attr);
   1560 #ifdef HPCFB_JUMP
   1561 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1562 		dc->dc_state |= HPCFB_DC_UPDATE;
   1563 		return;
   1564 	}
   1565 #endif /* HPCFB_JUMP */
   1566 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1567 		return;
   1568 	if (ri->ri_bits == NULL)
   1569 		return;
   1570 
   1571 	dc->dc_state |= HPCFB_DC_DRAWING;
   1572 	if (sc && sc->sc_accessops->erase
   1573 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1574 		yoff = row * ri->ri_font->fontheight;
   1575 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1576 		height = nrow * ri->ri_font->fontheight;
   1577 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1578 			0, yoff, height, width, attr);
   1579 	} else
   1580 		rasops_emul.eraserows(ri, row, nrow, attr);
   1581 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1582 #ifdef HPCFB_JUMP
   1583 	hpcfb_check_update(dc);
   1584 #endif /* HPCFB_JUMP */
   1585 }
   1586 
   1587 /*
   1588  * alloc_attr
   1589  */
   1590 int
   1591 hpcfb_alloc_attr(cookie, fg, bg, flags, attrp)
   1592 	void *cookie;
   1593 	int fg, bg, flags;
   1594 	long *attrp;
   1595 {
   1596 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1597 	struct rasops_info *ri = &dc->dc_rinfo;
   1598 
   1599 	return rasops_emul.alloc_attr(ri, fg, bg, flags, attrp);
   1600 }
   1601