Home | History | Annotate | Line # | Download | only in hpc
hpcfb.c revision 1.2
      1 /*	$NetBSD: hpcfb.c,v 1.2 2001/03/17 14:59:33 sato 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 1.2 2001/03/17 14:59:33 sato 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 */
    104 
    105 struct hpcfb_vchar {
    106 	u_int c;
    107 	long attr;
    108 };
    109 
    110 struct hpcfb_tvrow {
    111 	int maxcol;
    112 	int spacecol;
    113 	struct hpcfb_vchar col[HPCFB_MAX_COLUMN];
    114 };
    115 
    116 struct hpcfb_devconfig {
    117 	struct rasops_info	dc_rinfo;	/* rasops infomation */
    118 
    119 	int		dc_blanked;	/* currently had video disabled */
    120 	struct hpcfb_softc *dc_sc;
    121 	int dc_rows;
    122 	int dc_cols;
    123 	struct hpcfb_tvrow *dc_tvram;
    124 	int dc_curx;
    125 	int dc_cury;
    126 #ifdef HPCFB_JUMP
    127 	int dc_min_row;
    128 	int dc_max_row;
    129 	int dc_scroll;
    130 	struct callout dc_scroll_ch;
    131 	int dc_scroll_src;
    132 	int dc_scroll_dst;
    133 	int dc_scroll_num;
    134 #endif /* HPCFB_JUMP */
    135 	volatile int dc_state;
    136 #define HPCFB_DC_CURRENT		0x80000000
    137 #define HPCFB_DC_DRAWING		0x01	/* drawing raster ops */
    138 #define HPCFB_DC_TDRAWING		0x02	/* drawing tvram */
    139 #define HPCFB_DC_SCROLLPENDING		0x04	/* scroll is pending */
    140 #define HPCFB_DC_UPDATE			0x08	/* tvram update */
    141 #define HPCFB_DC_SCRDELAY		0x10	/* scroll time but delay it */
    142 #define HPCFB_DC_SCRTHREAD		0x20	/* in scroll thread or callout */
    143 #define HPCFB_DC_UPDATEALL		0x40	/* need to redraw all */
    144 #define HPCFB_DC_ABORT			0x80	/* abort redrawing */
    145 	int dc_scrno;
    146 	int	dc_memsize;
    147 	u_char *dc_fbaddr;
    148 };
    149 
    150 #define HPCFB_MAX_SCREEN 5
    151 #define HPCFB_MAX_JUMP 5
    152 
    153 struct hpcfb_softc {
    154 	struct	device sc_dev;
    155 	struct	hpcfb_devconfig *sc_dc;	/* device configuration */
    156 	struct	hpcfb_devconfig *screens[HPCFB_MAX_SCREEN];
    157 	const struct hpcfb_accessops	*sc_accessops;
    158 	void *sc_accessctx;
    159 	int nscreens;
    160 	void *sc_powerhook;	/* power management hook */
    161 	struct device *sc_wsdisplay;
    162 	int sc_screen_resumed;
    163 	int sc_polling;
    164 	int sc_mapping;
    165 	struct proc *sc_thread;
    166 	struct lock sc_lock;
    167 	void *sc_wantedscreen;
    168 	void (*sc_switchcb) __P((void *, int, int));
    169 	void *sc_switchcbarg;
    170 	struct callout sc_switch_callout;
    171 };
    172 
    173 /*
    174  *  function prototypes
    175  */
    176 int	hpcfbmatch __P((struct device *, struct cfdata *, void *));
    177 void	hpcfbattach __P((struct device *, struct device *, void *));
    178 int	hpcfbprint __P((void *aux, const char *pnp));
    179 
    180 int	hpcfb_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
    181 paddr_t	hpcfb_mmap __P((void *, off_t, int));
    182 
    183 void	hpcfb_refresh_screen __P((struct hpcfb_softc *sc));
    184 void	hpcfb_doswitch __P((struct hpcfb_softc *sc));
    185 
    186 #ifdef HPCFB_JUMP
    187 static void	hpcfb_create_thread __P((void *));
    188 static void	hpcfb_thread __P((void *));
    189 #endif /* HPCFB_JUMP */
    190 
    191 static int	hpcfb_init __P((struct hpcfb_fbconf *fbconf,
    192 				struct hpcfb_devconfig *dc));
    193 static int	hpcfb_alloc_screen __P((void *, const struct wsscreen_descr *,
    194 				     void **, int *, int *, long *));
    195 static void	hpcfb_free_screen __P((void *, void *));
    196 static int	hpcfb_show_screen __P((void *, void *, int,
    197 				    void (*) (void *, int, int), void *));
    198 static void     hpcfb_pollc __P((void *, int));
    199 static void	hpcfb_power __P((int, void *));
    200 static void	hpcfb_cmap_reorder __P((struct hpcfb_fbconf *,
    201 					struct hpcfb_devconfig *));
    202 
    203 static int	pow __P((int, int));
    204 
    205 void    hpcfb_cursor __P((void *c, int on, int row, int col));
    206 int     hpcfb_mapchar __P((void *, int, unsigned int *));
    207 void    hpcfb_putchar __P((void *c, int row, int col, u_int uc, long attr));
    208 void    hpcfb_copycols __P((void *c, int row, int srccol,
    209 			int dstcol, int ncols));
    210 void    hpcfb_erasecols __P((void *c, int row, int startcol,
    211 			int ncols, long attr));
    212 void    hpcfb_redraw __P((void *c, int row, int nrows, int all));
    213 void    hpcfb_copyrows __P((void *c, int srcrow, int dstrow, int nrows));
    214 void    hpcfb_eraserows __P((void *c, int row, int nrows, long attr));
    215 int     hpcfb_alloc_attr __P((void *c, int fg, int bg, int flags, long *attr));
    216 void    hpcfb_cursor_raw __P((void *c, int on, int row, int col));
    217 
    218 #ifdef HPCFB_JUMP
    219 void	hpcfb_update __P((void *));
    220 void	hpcfb_do_scroll __P((void *));
    221 void	hpcfb_check_update __P((void *));
    222 #endif /* HPCFB_JUMP */
    223 
    224 struct wsdisplay_emulops hpcfb_emulops = {
    225 	hpcfb_cursor,
    226 	hpcfb_mapchar,
    227 	hpcfb_putchar,
    228 	hpcfb_copycols,
    229 	hpcfb_erasecols,
    230 	hpcfb_copyrows,
    231 	hpcfb_eraserows,
    232 	hpcfb_alloc_attr
    233 };
    234 
    235 /*
    236  *  static variables
    237  */
    238 struct cfattach hpcfb_ca = {
    239 	sizeof(struct hpcfb_softc), hpcfbmatch, hpcfbattach,
    240 };
    241 
    242 struct wsscreen_descr hpcfb_stdscreen = {
    243 	"std",
    244 	0, 0,	/* will be filled in -- XXX shouldn't, it's global */
    245 	&hpcfb_emulops,	/* XXX */
    246 	0, 0,
    247 	WSSCREEN_REVERSE
    248 };
    249 
    250 const struct wsscreen_descr *_hpcfb_scrlist[] = {
    251 	&hpcfb_stdscreen,
    252 	/* XXX other formats, graphics screen? */
    253 };
    254 
    255 struct wsscreen_list hpcfb_screenlist = {
    256 	sizeof(_hpcfb_scrlist) / sizeof(struct wsscreen_descr *),
    257 	_hpcfb_scrlist
    258 };
    259 
    260 struct wsdisplay_accessops hpcfb_accessops = {
    261 	hpcfb_ioctl,
    262 	hpcfb_mmap,
    263 	hpcfb_alloc_screen,
    264 	hpcfb_free_screen,
    265 	hpcfb_show_screen,
    266 	0 /* load_font */,
    267 	hpcfb_pollc
    268 };
    269 
    270 void    hpcfb_tv_putchar __P((struct hpcfb_devconfig *, int, int, u_int, long));
    271 void    hpcfb_tv_copycols __P((struct hpcfb_devconfig *, int, int, int, int));
    272 void    hpcfb_tv_erasecols __P((struct hpcfb_devconfig *, int, int, int, long));
    273 void    hpcfb_tv_copyrows __P((struct hpcfb_devconfig *, int, int, int));
    274 void    hpcfb_tv_eraserows __P((struct hpcfb_devconfig *, int, int, long));
    275 
    276 struct wsdisplay_emulops rasops_emul;
    277 
    278 static int hpcfbconsole;
    279 struct hpcfb_devconfig hpcfb_console_dc;
    280 struct wsscreen_descr hpcfb_console_wsscreen;
    281 struct hpcfb_tvrow hpcfb_console_tvram[HPCFB_MAX_ROW];
    282 
    283 /*
    284  *  function bodies
    285  */
    286 static int
    287 pow(int x, int n)
    288 {
    289 	int res = 1;
    290 	while (0 < n--) {
    291 		res *= x;
    292 	}
    293 	return (res);
    294 }
    295 
    296 int
    297 hpcfbmatch(parent, match, aux)
    298 	struct device *parent;
    299 	struct cfdata *match;
    300 	void *aux;
    301 {
    302 	return (1);
    303 }
    304 
    305 void
    306 hpcfbattach(parent, self, aux)
    307 	struct device *parent, *self;
    308 	void *aux;
    309 {
    310 	struct hpcfb_softc *sc = (struct hpcfb_softc *)self;
    311 	struct hpcfb_attach_args *ha = aux;
    312 	struct wsemuldisplaydev_attach_args wa;
    313 
    314 	sc->sc_accessops = ha->ha_accessops;
    315 	sc->sc_accessctx = ha->ha_accessctx;
    316 
    317 	if (hpcfbconsole) {
    318 		sc->screens[0] =
    319 		sc->sc_dc = &hpcfb_console_dc;
    320 		sc->nscreens = 1;
    321 		hpcfb_console_dc.dc_sc = sc;
    322 	} else {
    323 		sc->screens[0] =
    324 		sc->sc_dc = (struct hpcfb_devconfig *)
    325 		    malloc(sizeof(struct hpcfb_devconfig), M_DEVBUF, M_WAITOK);
    326 		sc->nscreens = 0; /* XXXX */
    327 		bzero(sc->sc_dc, sizeof(struct hpcfb_devconfig));
    328 		if (hpcfb_init(&ha->ha_fbconflist[0], sc->sc_dc) != 0) {
    329 			return;
    330 		}
    331 		sc->sc_dc->dc_tvram = hpcfb_console_tvram;
    332 		bzero(hpcfb_console_tvram, sizeof(hpcfb_console_tvram));
    333 		sc->sc_dc->dc_sc = sc;
    334 	}
    335 	sc->sc_polling = 0; /* XXX */
    336 	sc->sc_mapping = 0; /* XXX */
    337 	callout_init(&sc->sc_switch_callout);
    338 	hpcfb_stdscreen.nrows = sc->sc_dc->dc_rows;
    339         hpcfb_stdscreen.ncols = sc->sc_dc->dc_cols;
    340 	hpcfb_stdscreen.capabilities = sc->sc_dc->dc_rinfo.ri_caps;
    341 	printf(": hpcrasops %dx%d pixels, %d colors, %dx%d chars: multi",
    342 	       sc->sc_dc->dc_rinfo.ri_width,
    343 	       sc->sc_dc->dc_rinfo.ri_height,
    344 	       pow(2, sc->sc_dc->dc_rinfo.ri_depth),
    345 	       sc->sc_dc->dc_rinfo.ri_cols,
    346 	       sc->sc_dc->dc_rinfo.ri_rows);
    347 	printf("\n");
    348 
    349 	/* Set video chip dependent CLUT if any. */
    350 	if (hpcfbconsole && sc->sc_accessops->setclut) {
    351 		sc->sc_accessops->setclut(sc->sc_accessctx,
    352 					  &hpcfb_console_dc.dc_rinfo);
    353 	}
    354 
    355 	/* set font for hardware accel */
    356 	if (sc->sc_accessops->font) {
    357 		sc->sc_accessops->font(sc->sc_accessctx,
    358 					sc->sc_dc->dc_rinfo.ri_font);
    359 	}
    360 
    361 	/* Add a power hook to power management */
    362 	sc->sc_powerhook = powerhook_establish(hpcfb_power, sc);
    363 	if (sc->sc_powerhook == NULL)
    364 		printf("%s: WARNING: unable to establish power hook\n",
    365 			sc->sc_dev.dv_xname);
    366 
    367 	wa.console = hpcfbconsole;
    368 	wa.scrdata = &hpcfb_screenlist;
    369 	wa.accessops = &hpcfb_accessops;
    370 	wa.accesscookie = sc;
    371 
    372 	sc->sc_wsdisplay = config_found(self, &wa, wsemuldisplaydevprint);
    373 
    374 #ifdef HPCFB_JUMP
    375 	/*
    376 	 * Create a kernel thread to scroll,
    377 	 */
    378 	kthread_create(hpcfb_create_thread, sc);
    379 #endif /* HPCFB_JUMP */
    380 }
    381 
    382 #ifdef HPCFB_JUMP
    383 void
    384 hpcfb_create_thread(arg)
    385 	void *arg;
    386 {
    387 	struct hpcfb_softc *sc = arg;
    388 
    389 	if (kthread_create1(hpcfb_thread, sc, &sc->sc_thread,
    390 			    "%s", sc->sc_dev.dv_xname) == 0)
    391 		return;
    392 
    393 	/*
    394 	 * We were unable to create the HPCFB thread; bail out.
    395 	 */
    396 	sc->sc_thread = 0;
    397 	printf("%s: unable to create thread, kernel hpcfb scroll support disabled\n",
    398 	       sc->sc_dev.dv_xname);
    399 }
    400 
    401 void
    402 hpcfb_thread(arg)
    403 	void *arg;
    404 {
    405 	struct hpcfb_softc *sc = arg;
    406 
    407 	/*
    408 	 * Loop forever, doing a periodic check for update events.
    409 	 */
    410 	for (;;) {
    411 		/* HPCFB_LOCK(sc); */
    412 		sc->sc_dc->dc_state |= HPCFB_DC_SCRTHREAD;
    413 		if (!sc->sc_mapping) /* draw only EMUL mode */
    414 			hpcfb_update(sc->sc_dc);
    415 		sc->sc_dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
    416 		/* APM_UNLOCK(sc); */
    417 		(void) tsleep(sc, PWAIT, "hpcfb",  (8 * hz) / 7 / 10);
    418 	}
    419 }
    420 #endif /* HPCFB_JUMP */
    421 
    422 /* Print function (for parent devices). */
    423 int
    424 hpcfbprint(aux, pnp)
    425 	void *aux;
    426 	const char *pnp;
    427 {
    428 	if (pnp)
    429 		printf("hpcfb at %s", pnp);
    430 
    431 	return (UNCONF);
    432 }
    433 
    434 int
    435 hpcfb_cnattach(fbconf)
    436 	struct hpcfb_fbconf *fbconf;
    437 {
    438 	struct hpcfb_fbconf __fbconf __attribute__((__unused__));
    439 	long defattr;
    440 
    441 #if NBIVIDEO > 0
    442 	if (fbconf == 0) {
    443 		memset(&__fbconf, 0, sizeof(struct hpcfb_fbconf));
    444 		if (bivideo_getcnfb(&__fbconf) != 0)
    445 			return (ENXIO);
    446 		fbconf = &__fbconf;
    447 	}
    448 #endif /* NBIVIDEO > 0 */
    449 	bzero(&hpcfb_console_dc, sizeof(struct hpcfb_devconfig));
    450 	if (hpcfb_init(fbconf, &hpcfb_console_dc) != 0)
    451 		return (ENXIO);
    452 
    453 	hpcfb_console_dc.dc_tvram = hpcfb_console_tvram;
    454 	bzero(hpcfb_console_tvram, sizeof(hpcfb_console_tvram));
    455 
    456 	hpcfb_console_wsscreen = hpcfb_stdscreen;
    457 	hpcfb_console_wsscreen.nrows = hpcfb_console_dc.dc_rows;
    458 	hpcfb_console_wsscreen.ncols = hpcfb_console_dc.dc_cols;
    459 	hpcfb_console_wsscreen.capabilities = hpcfb_console_dc.dc_rinfo.ri_caps;
    460 	hpcfb_alloc_attr(&hpcfb_console_dc, 7, 0, 0, &defattr);
    461 	wsdisplay_cnattach(&hpcfb_console_wsscreen, &hpcfb_console_dc,
    462 			   0, 0, defattr);
    463 	hpcfbconsole = 1;
    464 
    465 	return (0);
    466 }
    467 
    468 int
    469 hpcfb_init(fbconf, dc)
    470 	struct hpcfb_fbconf *fbconf;
    471 	struct hpcfb_devconfig *dc;
    472 {
    473 	struct rasops_info *ri;
    474 	vaddr_t fbaddr;
    475 
    476 	fbaddr = (vaddr_t)fbconf->hf_baseaddr;
    477 	dc->dc_fbaddr = (u_char *)fbaddr;
    478 
    479 	/* init rasops */
    480 	ri = &dc->dc_rinfo;
    481 	bzero(ri, sizeof(struct rasops_info));
    482 	ri->ri_depth = fbconf->hf_pixel_width;
    483 	ri->ri_bits = (caddr_t)fbaddr;
    484 	ri->ri_width = fbconf->hf_width;
    485 	ri->ri_height = fbconf->hf_height;
    486 	ri->ri_stride = fbconf->hf_bytes_per_line;
    487 #if 0
    488 	ri->ri_flg = RI_FORCEMONO | RI_CURSOR;
    489 #else
    490 	ri->ri_flg = RI_CURSOR;
    491 #endif
    492 	if (rasops_init(ri, HPCFB_MAX_ROW, HPCFB_MAX_COLUMN)) {
    493 		panic("%s(%d): rasops_init() failed!", __FILE__, __LINE__);
    494 	}
    495 
    496 	/* over write color map of rasops */
    497 	hpcfb_cmap_reorder (fbconf, dc);
    498 
    499 	dc->dc_curx = -1;
    500 	dc->dc_cury = -1;
    501 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    502 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    503 	dc->dc_state |= HPCFB_DC_CURRENT;
    504 #ifdef HPCFB_JUMP
    505 	dc->dc_max_row = 0;
    506 	dc->dc_min_row = dc->dc_rows;
    507 	dc->dc_scroll = 0;
    508 	callout_init(&dc->dc_scroll_ch);
    509 #endif /* HPCFB_JUMP */
    510 	dc->dc_memsize = ri->ri_stride * ri->ri_height;
    511 	dc->dc_scrno = 0;
    512 	/* hook rasops in hpcfb_ops */
    513 	rasops_emul = ri->ri_ops; /* struct copy */
    514 	ri->ri_ops = hpcfb_emulops; /* struct copy */
    515 
    516 	return (0);
    517 }
    518 
    519 static void
    520 hpcfb_cmap_reorder(fbconf, dc)
    521 	struct hpcfb_fbconf *fbconf;
    522 	struct hpcfb_devconfig *dc;
    523 {
    524 	struct rasops_info *ri = &dc->dc_rinfo;
    525 	int reverse = fbconf->hf_access_flags & HPCFB_ACCESS_REVERSE;
    526 	int *cmap = ri->ri_devcmap;
    527 	vaddr_t fbaddr = (vaddr_t)fbconf->hf_baseaddr;
    528 	int i, j, bg, fg, tmp;
    529 
    530 	/*
    531 	 * Set forground and background so that the screen
    532 	 * looks black on white.
    533 	 * Normally, black = 00 and white = ff.
    534 	 * HPCFB_ACCESS_REVERSE means black = ff and white = 00.
    535 	 */
    536 	switch (fbconf->hf_pixel_width) {
    537 	case 1:
    538 		/* FALLTHROUGH */
    539 	case 2:
    540 		/* FALLTHROUGH */
    541 	case 4:
    542 		if (reverse) {
    543 			bg = 0;
    544 			fg = ~0;
    545 		} else {
    546 			bg = ~0;
    547 			fg = 0;
    548 		}
    549 		/* for gray-scale LCD, hi-contrast color map */
    550 		cmap[0] = bg;
    551 		for (i = 1; i < 16; i++)
    552 			cmap[i] = fg;
    553 		break;
    554 	case 8:
    555 		/* FALLTHROUGH */
    556 	case 16:
    557 		if (reverse) {
    558 			for (i = 0, j = 15; i < 8; i++, j--) {
    559 				tmp = cmap[i];
    560 				cmap[i] = cmap[j];
    561 				cmap[j] = tmp;
    562 			}
    563 		}
    564 		break;
    565 	}
    566 
    567 	/* clear the screen */
    568 	bg = cmap[0];
    569 	for (i = 0;
    570 	     i < fbconf->hf_height * fbconf->hf_bytes_per_line;
    571 	     i += sizeof(u_int32_t)) {
    572 		*(u_int32_t *)(fbaddr + i) = bg;
    573 	}
    574 }
    575 
    576 int
    577 hpcfb_ioctl(v, cmd, data, flag, p)
    578 	void *v;
    579 	u_long cmd;
    580 	caddr_t data;
    581 	int flag;
    582 	struct proc *p;
    583 {
    584 	struct hpcfb_softc *sc = v;
    585 	struct hpcfb_devconfig *dc = sc->sc_dc;
    586 	struct wsdisplay_fbinfo *wdf;
    587 
    588 	switch (cmd) {
    589 	case WSKBDIO_BELL:
    590 		return (0);
    591 		break;
    592 
    593 	case WSDISPLAYIO_GTYPE:
    594 		*(u_int *)data = WSDISPLAY_TYPE_HPCFB;
    595 		return 0;
    596 
    597 	case WSDISPLAYIO_GINFO:
    598 		wdf = (void *)data;
    599 		wdf->height = dc->dc_rinfo.ri_height;
    600 		wdf->width = dc->dc_rinfo.ri_width;
    601 		wdf->depth = dc->dc_rinfo.ri_depth;
    602 		wdf->cmsize = 256;	/* XXXX */
    603 		return 0;
    604 
    605 	case WSDISPLAYIO_SMODE:
    606 		if (*(int *)data == WSDISPLAYIO_MODE_EMUL){
    607 			if (sc->sc_mapping){
    608 				sc->sc_mapping = 0;
    609 				if (dc->dc_state&HPCFB_DC_DRAWING)
    610 					dc->dc_state &= ~HPCFB_DC_ABORT;
    611 #ifdef HPCFB_FORCE_REDRAW
    612 				hpcfb_refresh_screen(sc);
    613 #else
    614 				dc->dc_state |= HPCFB_DC_UPDATEALL;
    615 #endif
    616 			}
    617 		} else {
    618 			if (!sc->sc_mapping) {
    619 				sc->sc_mapping = 1;
    620 				dc->dc_state |= HPCFB_DC_ABORT;
    621 			}
    622 			sc->sc_mapping = 1;
    623 		}
    624 		if (sc && sc->sc_accessops->iodone)
    625 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    626 		return 0;
    627 
    628 	case WSDISPLAYIO_GETCMAP:
    629 	case WSDISPLAYIO_PUTCMAP:
    630 	case WSDISPLAYIO_GETPARAM:
    631 	case WSDISPLAYIO_SETPARAM:
    632 	case HPCFBIO_GCONF:
    633 	case HPCFBIO_SCONF:
    634 	case HPCFBIO_GDSPCONF:
    635 	case HPCFBIO_SDSPCONF:
    636 	case HPCFBIO_GOP:
    637 	case HPCFBIO_SOP:
    638 		return (*sc->sc_accessops->ioctl)(sc->sc_accessctx,
    639 						  cmd, data, flag, p);
    640 
    641 	default:
    642 		if (IOCGROUP(cmd) != 't')
    643 			DPRINTF(("%s(%d): hpcfb_ioctl(%lx, %lx) grp=%c num=%ld\n",
    644 			 __FILE__, __LINE__,
    645 			 cmd, (u_long)data, (char)IOCGROUP(cmd), cmd&0xff));
    646 		break;
    647 	}
    648 
    649 	return (ENOTTY); /* Inappropriate ioctl for device */
    650 }
    651 
    652 paddr_t
    653 hpcfb_mmap(v, offset, prot)
    654 	void *v;
    655 	off_t offset;
    656 	int prot;
    657 {
    658 	struct hpcfb_softc *sc = v;
    659 
    660 	return (*sc->sc_accessops->mmap)(sc->sc_accessctx, offset, prot);
    661 }
    662 
    663 static void
    664 hpcfb_power(why, arg)
    665 	int why;
    666 	void *arg;
    667 {
    668 	struct hpcfb_softc *sc = arg;
    669 
    670 	switch (why) {
    671 	case PWR_STANDBY:
    672 		break;
    673 	case PWR_SOFTSUSPEND:
    674 		/* XXX, casting to 'struct wsdisplay_softc *' means
    675 		   that you should not call the method here... */
    676 		sc->sc_screen_resumed = wsdisplay_getactivescreen(
    677 			(struct wsdisplay_softc *)sc->sc_wsdisplay);
    678 		if (wsdisplay_switch(sc->sc_wsdisplay,
    679 		    WSDISPLAY_NULLSCREEN,
    680 		    1 /* waitok */) == 0) {
    681 			wsscreen_switchwait(
    682 				(struct wsdisplay_softc *)sc->sc_wsdisplay,
    683 				WSDISPLAY_NULLSCREEN);
    684 		} else {
    685 			sc->sc_screen_resumed = WSDISPLAY_NULLSCREEN;
    686 		}
    687 		break;
    688 	case PWR_SOFTRESUME:
    689 		if (sc->sc_screen_resumed != WSDISPLAY_NULLSCREEN)
    690 			wsdisplay_switch(sc->sc_wsdisplay,
    691 			    sc->sc_screen_resumed,
    692 			    1 /* waitok */);
    693 		break;
    694 	}
    695 }
    696 
    697 void
    698 hpcfb_refresh_screen(sc)
    699 	struct hpcfb_softc *sc;
    700 {
    701 	struct hpcfb_devconfig *dc = sc->sc_dc;
    702 	int x, y;
    703 
    704 	if (dc == NULL)
    705 		return;
    706 
    707 #ifdef HPCFB_JUMP
    708 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    709 		dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
    710 		dc->dc_state &= ~HPCFB_DC_UPDATE;
    711 		callout_stop(&dc->dc_scroll_ch);
    712 	}
    713 #endif /* HPCFB_JUMP */
    714 	/*
    715 	 * refresh screen
    716 	 */
    717 	dc->dc_state &= ~HPCFB_DC_UPDATEALL;
    718 	x = dc->dc_curx;
    719 	y = dc->dc_cury;
    720 	if (0 <= x && 0 <= y)
    721 		hpcfb_cursor_raw(dc, 0,  y, x); /* disable cursor */
    722 	/* redraw all text */
    723 	hpcfb_redraw(dc, 0, dc->dc_rows, 1);
    724 	if (0 <= x && 0 <= y)
    725 		hpcfb_cursor_raw(dc, 1,  y, x); /* enable cursor */
    726 }
    727 
    728 static int
    729 hpcfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
    730 	void *v;
    731 	const struct wsscreen_descr *type;
    732 	void **cookiep;
    733 	int *curxp, *curyp;
    734 	long *attrp;
    735 {
    736 	struct hpcfb_softc *sc = v;
    737 	struct hpcfb_devconfig *dc;
    738 
    739 	DPRINTF(("%s(%d): hpcfb_alloc_screen()\n", __FILE__, __LINE__));
    740 
    741 	if (!hpcfbconsole && sc->nscreens > 0)	/* XXXXX */
    742 		return ENOMEM;
    743 
    744 	if (sc->nscreens > HPCFB_MAX_SCREEN)
    745 		return (ENOMEM);
    746 
    747 	if (sc->screens[sc->nscreens] == NULL){
    748 		sc->screens[sc->nscreens] =
    749 			malloc(sizeof(struct hpcfb_devconfig), M_DEVBUF, M_WAITOK);
    750 		if (sc->screens[sc->nscreens] == NULL)
    751 			return ENOMEM;
    752 		bzero(sc->screens[sc->nscreens], sizeof(struct hpcfb_devconfig));
    753 	}
    754 	dc = sc->screens[sc->nscreens];
    755 	dc->dc_sc = sc;
    756 
    757 	/* copy master raster info */
    758 	dc->dc_rinfo = sc->sc_dc->dc_rinfo;
    759 	if (sc->sc_accessops->font) {
    760 		sc->sc_accessops->font(sc->sc_accessctx,
    761 					sc->sc_dc->dc_rinfo.ri_font);
    762 	}
    763 
    764 	dc->dc_fbaddr = dc->dc_rinfo.ri_bits;
    765 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    766 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    767 	dc->dc_memsize = dc->dc_rinfo.ri_stride * dc->dc_rinfo.ri_height;
    768 
    769 	dc->dc_scrno = sc->nscreens;
    770 	dc->dc_curx = -1;
    771 	dc->dc_cury = -1;
    772 	if (dc->dc_tvram == NULL){
    773 		dc->dc_tvram =
    774 			malloc(sizeof(struct hpcfb_tvrow)*dc->dc_rows,
    775 				M_DEVBUF, M_WAITOK);
    776 		if (dc->dc_tvram == NULL){
    777 			free(sc->screens[sc->nscreens], M_DEVBUF);
    778 			sc->screens[sc->nscreens] = NULL;
    779 			return ENOMEM;
    780 		}
    781 		bzero(dc->dc_tvram,
    782 				sizeof(struct hpcfb_tvrow)*dc->dc_rows);
    783 	}
    784 
    785 	*curxp = 0;
    786 	*curyp = 0;
    787 	sc->nscreens++;
    788 	*cookiep = dc;
    789 	hpcfb_alloc_attr(*cookiep, 7, 0, 0, attrp);
    790 	return (0);
    791 }
    792 
    793 static void
    794 hpcfb_free_screen(v, cookie)
    795 	void *v;
    796 	void *cookie;
    797 {
    798 	struct hpcfb_softc *sc = v;
    799 
    800 	if (sc->nscreens == 1 && sc->sc_dc == &hpcfb_console_dc)
    801 		panic("hpcfb_free_screen: console");
    802 	sc->nscreens--;
    803 }
    804 
    805 static int
    806 hpcfb_show_screen(v, cookie, waitok, cb, cbarg)
    807 	void *v;
    808 	void *cookie;
    809 	int waitok;
    810 	void (*cb) __P((void *, int, int));
    811 	void *cbarg;
    812 {
    813 	struct hpcfb_softc *sc = v;
    814 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    815 	struct hpcfb_devconfig *odc;
    816 
    817 	DPRINTF(("%s(%d): hpcfb_show_screen()\n", __FILE__, __LINE__));
    818 
    819 	odc = sc->sc_dc;
    820 
    821 	if (dc == NULL || odc == dc) {
    822 		hpcfb_refresh_screen(sc);
    823 		return 0;
    824 	}
    825 
    826 	sc->sc_wantedscreen = cookie;
    827 	sc->sc_switchcb = cb;
    828 	sc->sc_switchcbarg = cbarg;
    829 	if (cb) {
    830 		callout_reset(&sc->sc_switch_callout, 0,
    831 			(void(*)(void *))hpcfb_doswitch, sc);
    832 		return EAGAIN;
    833 	}
    834 
    835 	hpcfb_doswitch(sc);
    836 	return 0;
    837 }
    838 
    839 void
    840 hpcfb_doswitch(sc)
    841 	struct hpcfb_softc *sc;
    842 {
    843 	struct hpcfb_devconfig *dc;
    844 	struct hpcfb_devconfig *odc;
    845 
    846 	odc = sc->sc_dc;
    847 	dc = sc->sc_wantedscreen;
    848 
    849 	if (!dc) {
    850 		(*sc->sc_switchcb)(sc->sc_switchcbarg, EIO, 0);
    851 		return;
    852 	}
    853 
    854 	if (odc == dc)
    855 		return;
    856 
    857 	if (odc) {
    858 #ifdef HPCFB_JUMP
    859 		odc->dc_state |= HPCFB_DC_ABORT;
    860 #endif /* HPCFB_JUMP */
    861 
    862 		if (odc->dc_curx >= 0 && odc->dc_cury >= 0)
    863 			hpcfb_cursor_raw(odc, 0,  odc->dc_cury, odc->dc_curx);
    864 			 /* disable cursor */
    865 		/* disable old screen */
    866 		odc->dc_state &= ~HPCFB_DC_CURRENT;
    867 		odc->dc_rinfo.ri_bits = NULL;
    868 	}
    869 	/* switch screen to new one */
    870 	dc->dc_state |= HPCFB_DC_CURRENT;
    871 	dc->dc_rinfo.ri_bits = dc->dc_fbaddr;
    872 	sc->sc_dc = dc;
    873 
    874 	/* redraw screen image */
    875 	hpcfb_refresh_screen(sc);
    876 
    877 	sc->sc_wantedscreen = NULL;
    878 	if (sc->sc_switchcb)
    879 		(*sc->sc_switchcb)(sc->sc_switchcbarg, 0, 0);
    880 
    881 	return;
    882 }
    883 
    884 static void
    885 hpcfb_pollc(v, on)
    886 	void *v;
    887 	int on;
    888 {
    889 	struct hpcfb_softc *sc = v;
    890 
    891 	if (sc == NULL)
    892 		return;
    893 	sc->sc_polling = on;
    894 	if (sc->sc_accessops->iodone)
    895 		(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    896 	if (on) {
    897 		hpcfb_refresh_screen(sc);
    898 		if (sc->sc_accessops->iodone)
    899 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    900 	}
    901 
    902 	return;
    903 }
    904 
    905 /*
    906  * cursor
    907  */
    908 void
    909 hpcfb_cursor(cookie, on, row, col)
    910 	void *cookie;
    911 	int on, row, col;
    912 {
    913 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    914 
    915 	if (on) {
    916 		dc->dc_curx = col;
    917 		dc->dc_cury = row;
    918 	} else {
    919 		dc->dc_curx = -1;
    920 		dc->dc_cury = -1;
    921 	}
    922 
    923 	hpcfb_cursor_raw(cookie, on, row, col);
    924 }
    925 
    926 void
    927 hpcfb_cursor_raw(cookie, on, row, col)
    928 	void *cookie;
    929 	int on, row, col;
    930 {
    931 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    932 	struct hpcfb_softc *sc = dc->dc_sc;
    933 	struct rasops_info *ri = &dc->dc_rinfo;
    934 	int curwidth, curheight;
    935 	int xoff, yoff;
    936 
    937 #ifdef HPCFB_JUMP
    938 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    939 		dc->dc_state |= HPCFB_DC_UPDATE;
    940 		return;
    941 	}
    942 #endif /* HPCFB_JUMP */
    943 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
    944 		return;
    945 
    946 	if (ri->ri_bits == NULL)
    947 		return;
    948 
    949 	dc->dc_state |= HPCFB_DC_DRAWING;
    950 	if (sc && sc->sc_accessops->cursor) {
    951 		xoff = col * ri->ri_font->fontwidth;
    952 		yoff = row * ri->ri_font->fontheight;
    953 		curheight = ri->ri_font->fontheight;
    954 		curwidth = ri->ri_font->fontwidth;
    955 		(*sc->sc_accessops->cursor)(sc->sc_accessctx,
    956 				on, xoff, yoff, curwidth, curheight);
    957 	} else
    958 		rasops_emul.cursor(ri, on, row, col);
    959 	dc->dc_state &= ~HPCFB_DC_DRAWING;
    960 }
    961 
    962 /*
    963  * mapchar
    964  */
    965 int
    966 hpcfb_mapchar(cookie, c, cp)
    967 	void *cookie;
    968 	int c;
    969 	unsigned int *cp;
    970 {
    971 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    972 	struct rasops_info *ri = &dc->dc_rinfo;
    973 
    974 	return rasops_emul.mapchar(ri, c, cp);
    975 }
    976 
    977 /*
    978  * putchar
    979  */
    980 void
    981 hpcfb_tv_putchar(dc, row, col, uc, attr)
    982 	struct hpcfb_devconfig *dc;
    983 	int row, col;
    984 	u_int uc;
    985 	long attr;
    986 {
    987 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
    988 	struct hpcfb_vchar *vc = &vscn[row].col[col];
    989 	struct hpcfb_vchar *vcb;
    990 
    991 	if (vscn == 0)
    992 		return;
    993 
    994 	dc->dc_state |= HPCFB_DC_TDRAWING;
    995 #ifdef HPCFB_JUMP
    996 	if (row < dc->dc_min_row)
    997 		dc->dc_min_row = row;
    998 	if (row > dc->dc_max_row)
    999 		dc->dc_max_row = row;
   1000 
   1001 #endif /* HPCFB_JUMP */
   1002 	if (vscn[row].maxcol +1 == col)
   1003 		vscn[row].maxcol = col;
   1004 	else if (vscn[row].maxcol < col) {
   1005 		vcb =  &vscn[row].col[vscn[row].maxcol+1];
   1006 		bzero(vcb, sizeof(struct hpcfb_vchar)*(col-vscn[row].maxcol-1));
   1007 		vscn[row].maxcol = col;
   1008 	}
   1009 	vc->c = uc;
   1010 	vc->attr = attr;
   1011 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1012 #ifdef HPCFB_JUMP
   1013 	hpcfb_check_update(dc);
   1014 #endif /* HPCFB_JUMP */
   1015 }
   1016 
   1017 void
   1018 hpcfb_putchar(cookie, row, col, uc, attr)
   1019 	void *cookie;
   1020 	int row, col;
   1021 	u_int uc;
   1022 	long attr;
   1023 {
   1024 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1025 	struct hpcfb_softc *sc = dc->dc_sc;
   1026 	struct rasops_info *ri = &dc->dc_rinfo;
   1027 	int xoff;
   1028 	int yoff;
   1029 	int fclr, uclr;
   1030 	struct wsdisplay_font *font;
   1031 
   1032 	hpcfb_tv_putchar(dc, row, col, uc, attr);
   1033 #ifdef HPCFB_JUMP
   1034 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1035 		dc->dc_state |= HPCFB_DC_UPDATE;
   1036 		return;
   1037 	}
   1038 #endif /* HPCFB_JUMP */
   1039 
   1040 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1041 		return;
   1042 	if (ri->ri_bits == NULL)
   1043 		return;
   1044 
   1045 	dc->dc_state |= HPCFB_DC_DRAWING;
   1046 	if (sc && sc->sc_accessops->putchar
   1047 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1048 		font = ri->ri_font;
   1049 		yoff = row * ri->ri_font->fontheight;
   1050 		xoff =  col * ri->ri_font->fontwidth;
   1051 		fclr = ri->ri_devcmap[((u_int)attr >> 24) & 15];
   1052 		uclr = ri->ri_devcmap[((u_int)attr >> 16) & 15];
   1053 
   1054 		(*sc->sc_accessops->putchar)(sc->sc_accessctx,
   1055 				xoff, yoff, font, fclr, uclr, uc, attr);
   1056 	} else
   1057 		rasops_emul.putchar(ri, row, col, uc, attr);
   1058 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1059 #ifdef HPCFB_JUMP
   1060 	hpcfb_check_update(dc);
   1061 #endif /* HPCFB_JUMP */
   1062 }
   1063 
   1064 /*
   1065  * copycols
   1066  */
   1067 void
   1068 hpcfb_tv_copycols(dc, row, srccol, dstcol, ncols)
   1069 	struct hpcfb_devconfig *dc;
   1070 	int row, srccol, dstcol, ncols;
   1071 {
   1072 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1073 	struct hpcfb_vchar *svc = &vscn[row].col[srccol];
   1074 	struct hpcfb_vchar *dvc = &vscn[row].col[dstcol];
   1075 
   1076 	if (vscn == 0)
   1077 		return;
   1078 
   1079 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1080 #ifdef HPCFB_JUMP
   1081 	if (row < dc->dc_min_row)
   1082 		dc->dc_min_row = row;
   1083 	if (row > dc->dc_max_row)
   1084 		dc->dc_max_row = row;
   1085 #endif /* HPCFB_JUMP */
   1086 
   1087 	bcopy(svc, dvc, ncols*sizeof(struct hpcfb_vchar));
   1088 	if (vscn[row].maxcol < srccol+ncols-1)
   1089 		vscn[row].maxcol = srccol+ncols-1;
   1090 	if (vscn[row].maxcol < dstcol+ncols-1)
   1091 		vscn[row].maxcol = dstcol+ncols-1;
   1092 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1093 #ifdef HPCFB_JUMP
   1094 	hpcfb_check_update(dc);
   1095 #endif /* HPCFB_JUMP */
   1096 }
   1097 
   1098 void
   1099 hpcfb_copycols(cookie, row, srccol, dstcol, ncols)
   1100 	void *cookie;
   1101 	int row, srccol, dstcol, ncols;
   1102 {
   1103 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1104 	struct hpcfb_softc *sc = dc->dc_sc;
   1105 	struct rasops_info *ri = &dc->dc_rinfo;
   1106 	int srcxoff,dstxoff;
   1107 	int srcyoff,dstyoff;
   1108 	int height, width;
   1109 
   1110 	hpcfb_tv_copycols(dc, row, srccol, dstcol, ncols);
   1111 #ifdef HPCFB_JUMP
   1112 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1113 		dc->dc_state |= HPCFB_DC_UPDATE;
   1114 		return;
   1115 	}
   1116 #endif /* HPCFB_JUMP */
   1117 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1118 		return;
   1119 	if (ri->ri_bits == NULL)
   1120 		return;
   1121 
   1122 	dc->dc_state |= HPCFB_DC_DRAWING;
   1123 	if (sc && sc->sc_accessops->bitblit
   1124 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1125 		srcxoff = srccol * ri->ri_font->fontwidth;
   1126 		srcyoff = row * ri->ri_font->fontheight;
   1127 		dstxoff = dstcol * ri->ri_font->fontwidth;
   1128 		dstyoff = row * ri->ri_font->fontheight;
   1129 		width = ncols * ri->ri_font->fontwidth;
   1130 		height = ri->ri_font->fontheight;
   1131 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1132 			srcxoff, srcyoff, dstxoff, dstyoff, height, width);
   1133 	} else
   1134 		rasops_emul.copycols(ri, row, srccol, dstcol, ncols);
   1135 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1136 #ifdef HPCFB_JUMP
   1137 	hpcfb_check_update(dc);
   1138 #endif /* HPCFB_JUMP */
   1139 }
   1140 
   1141 
   1142 /*
   1143  * erasecols
   1144  */
   1145 void
   1146 hpcfb_tv_erasecols(dc, row, startcol, ncols, attr)
   1147 	struct hpcfb_devconfig *dc;
   1148 	int row, startcol, ncols;
   1149 	long attr;
   1150 {
   1151 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1152 
   1153 	if (vscn == 0)
   1154 		return;
   1155 
   1156 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1157 #ifdef HPCFB_JUMP
   1158 	if (row < dc->dc_min_row)
   1159 		dc->dc_min_row = row;
   1160 	if (row > dc->dc_max_row)
   1161 		dc->dc_max_row = row;
   1162 #endif /* HPCFB_JUMP */
   1163 
   1164 	vscn[row].maxcol = startcol-1;
   1165 	if (vscn[row].spacecol < startcol+ncols-1)
   1166 		vscn[row].spacecol = startcol+ncols-1;
   1167 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1168 #ifdef HPCFB_JUMP
   1169 	hpcfb_check_update(dc);
   1170 #endif /* HPCFB_JUMP */
   1171 }
   1172 
   1173 void
   1174 hpcfb_erasecols(cookie, row, startcol, ncols, attr)
   1175 	void *cookie;
   1176 	int row, startcol, ncols;
   1177 	long attr;
   1178 {
   1179 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1180 	struct hpcfb_softc *sc = dc->dc_sc;
   1181 	struct rasops_info *ri = &dc->dc_rinfo;
   1182 	int xoff, yoff;
   1183 	int width, height;
   1184 
   1185 	hpcfb_tv_erasecols(dc, row, startcol, ncols, attr);
   1186 #ifdef HPCFB_JUMP
   1187 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1188 		dc->dc_state |= HPCFB_DC_UPDATE;
   1189 		return;
   1190 	}
   1191 #endif /* HPCFB_JUMP */
   1192 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1193 		return;
   1194 	if (ri->ri_bits == NULL)
   1195 		return;
   1196 
   1197 	dc->dc_state |= HPCFB_DC_DRAWING;
   1198 	if (sc && sc->sc_accessops->erase
   1199 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1200 		xoff = startcol * ri->ri_font->fontwidth;
   1201 		yoff = row * ri->ri_font->fontheight;
   1202 		width = ncols * ri->ri_font->fontwidth;
   1203 		height = ri->ri_font->fontheight;
   1204 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1205 			xoff, yoff, height, width, attr);
   1206 	} else
   1207 		rasops_emul.erasecols(ri, row, startcol, ncols, attr);
   1208 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1209 #ifdef HPCFB_JUMP
   1210 	hpcfb_check_update(dc);
   1211 #endif /* HPCFB_JUMP */
   1212 }
   1213 
   1214 /*
   1215  * Copy rows.
   1216  */
   1217 void
   1218 hpcfb_tv_copyrows(dc, src, dst, num)
   1219 	struct hpcfb_devconfig *dc;
   1220 	int src, dst, num;
   1221 {
   1222 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1223 	struct hpcfb_tvrow *svc = &vscn[src];
   1224 	struct hpcfb_tvrow *dvc = &vscn[dst];
   1225 	int i;
   1226 	int d;
   1227 
   1228 	if (vscn == 0)
   1229 		return;
   1230 
   1231 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1232 #ifdef HPCFB_JUMP
   1233 	if (dst < dc->dc_min_row)
   1234 		dc->dc_min_row = dst;
   1235 	if (dst + num > dc->dc_max_row)
   1236 		dc->dc_max_row = dst + num -1;
   1237 #endif /* HPCFB_JUMP */
   1238 
   1239 	if (svc > dvc)
   1240 		d = 1;
   1241 	else if (svc < dvc) {
   1242 		svc += num-1;
   1243 		dvc += num-1;
   1244 		d = -1;
   1245 	} else  {
   1246 		dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1247 #ifdef HPCFB_JUMP
   1248 		hpcfb_check_update(dc);
   1249 #endif /* HPCFB_JUMP */
   1250 		return;
   1251 	}
   1252 
   1253 	for (i = 0; i < num; i++) {
   1254 		bcopy(&svc->col[0], &dvc->col[0], sizeof(struct hpcfb_vchar)*(svc->maxcol+1));
   1255 		if (svc->maxcol < dvc->maxcol && dvc->spacecol < dvc->maxcol)
   1256 			dvc->spacecol = dvc->maxcol;
   1257 		dvc->maxcol = svc->maxcol;
   1258 		svc+=d;
   1259 		dvc+=d;
   1260 	}
   1261 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1262 #ifdef HPCFB_JUMP
   1263 	hpcfb_check_update(dc);
   1264 #endif /* HPCFB_JUMP */
   1265 }
   1266 
   1267 void
   1268 hpcfb_redraw(cookie, row, num, all)
   1269 	void *cookie;
   1270 	int row, num;
   1271 	int all;
   1272 {
   1273 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1274 	struct rasops_info *ri = &dc->dc_rinfo;
   1275 	int cols;
   1276 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1277 	struct hpcfb_vchar *svc;
   1278 	int i, j;
   1279 
   1280 #ifdef HPCFB_JUMP
   1281 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1282 		dc->dc_state |= HPCFB_DC_UPDATE;
   1283 		return;
   1284 	}
   1285 #endif /* HPCFB_JUMP */
   1286 	if (dc->dc_sc != NULL
   1287 	    && !dc->dc_sc->sc_polling
   1288 	    && dc->dc_sc->sc_mapping)
   1289 		return;
   1290 
   1291 	dc->dc_state &= ~HPCFB_DC_ABORT;
   1292 
   1293 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1294 		return;
   1295 	if (vscn == 0)
   1296 		return;
   1297 
   1298 	if (ri->ri_bits == NULL)
   1299 		return;
   1300 
   1301 	dc->dc_state |= HPCFB_DC_DRAWING;
   1302 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1303 	for (i = 0; i < num; i++) {
   1304 		if (dc->dc_state&HPCFB_DC_ABORT)
   1305 			break;
   1306 		cols = vscn[row+i].maxcol;
   1307 		for (j = 0; j <= cols; j++) {
   1308 			if (dc->dc_state&HPCFB_DC_ABORT)
   1309 				continue;
   1310 			svc = &vscn[row+i].col[j];
   1311 			rasops_emul.putchar(ri, row + i, j, svc->c, svc->attr);
   1312 		}
   1313 		if (all)
   1314 			cols = dc->dc_cols-1;
   1315 		else
   1316 			cols = vscn[row+i].spacecol;
   1317 		for (; j <= cols; j++) {
   1318 			if (dc->dc_state&HPCFB_DC_ABORT)
   1319 				continue;
   1320 			rasops_emul.putchar(ri, row + i, j, ' ', 0);
   1321 		}
   1322 		vscn[row+i].spacecol = 0;
   1323 	}
   1324 	if (dc->dc_state&HPCFB_DC_ABORT)
   1325 		dc->dc_state &= ~HPCFB_DC_ABORT;
   1326 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1327 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1328 #ifdef HPCFB_JUMP
   1329 	hpcfb_check_update(dc);
   1330 #endif /* HPCFB_JUMP */
   1331 }
   1332 
   1333 #ifdef HPCFB_JUMP
   1334 void
   1335 hpcfb_update(v)
   1336 	void *v;
   1337 {
   1338 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1339 
   1340 	/* callout_stop(&dc->dc_scroll_ch); */
   1341 	dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1342 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1343 		hpcfb_cursor_raw(dc, 0,  dc->dc_cury, dc->dc_curx);
   1344 	if ((dc->dc_state&HPCFB_DC_UPDATEALL)) {
   1345 		hpcfb_redraw(dc, 0, dc->dc_rows, 1);
   1346 		dc->dc_state &= ~(HPCFB_DC_UPDATE|HPCFB_DC_UPDATEALL);
   1347 	} else if ((dc->dc_state&HPCFB_DC_UPDATE)) {
   1348 		hpcfb_redraw(dc, dc->dc_min_row,
   1349 				dc->dc_max_row - dc->dc_min_row, 0);
   1350 		dc->dc_state &= ~HPCFB_DC_UPDATE;
   1351 	} else {
   1352 		hpcfb_redraw(dc, dc->dc_scroll_dst, dc->dc_scroll_num, 0);
   1353 	}
   1354 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1355 		hpcfb_cursor_raw(dc, 1,  dc->dc_cury, dc->dc_curx);
   1356 }
   1357 
   1358 void
   1359 hpcfb_do_scroll(v)
   1360 	void *v;
   1361 {
   1362 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1363 
   1364 	dc->dc_state |= HPCFB_DC_SCRTHREAD;
   1365 	if (dc->dc_state&(HPCFB_DC_DRAWING|HPCFB_DC_TDRAWING))
   1366 		dc->dc_state |= HPCFB_DC_SCRDELAY;
   1367 	else if (dc->dc_sc != NULL && dc->dc_sc->sc_thread)
   1368 		wakeup(dc->dc_sc);
   1369 	else if (dc->dc_sc != NULL && !dc->dc_sc->sc_mapping) {
   1370 		/* draw only EMUL mode */
   1371 		hpcfb_update(v);
   1372 	}
   1373 	dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
   1374 }
   1375 
   1376 void
   1377 hpcfb_check_update(v)
   1378 	void *v;
   1379 {
   1380 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1381 
   1382 	if (dc->dc_sc != NULL
   1383 		&& dc->dc_sc->sc_polling
   1384 		&& (dc->dc_state&HPCFB_DC_SCROLLPENDING)){
   1385 		callout_stop(&dc->dc_scroll_ch);
   1386 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1387 		hpcfb_update(v);
   1388 	}
   1389 	else if (dc->dc_state&HPCFB_DC_SCRDELAY){
   1390 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1391 		hpcfb_update(v);
   1392 	} else if (dc->dc_state&HPCFB_DC_UPDATEALL){
   1393 		dc->dc_state &= ~HPCFB_DC_UPDATEALL;
   1394 		hpcfb_update(v);
   1395 	}
   1396 }
   1397 #endif /* HPCFB_JUMP */
   1398 
   1399 void
   1400 hpcfb_copyrows(cookie, src, dst, num)
   1401 	void *cookie;
   1402 	int src, dst, num;
   1403 {
   1404 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1405 	struct rasops_info *ri = &dc->dc_rinfo;
   1406 	struct hpcfb_softc *sc = dc->dc_sc;
   1407 	int srcyoff, dstyoff;
   1408 	int width, height;
   1409 
   1410 	hpcfb_tv_copyrows(cookie, src, dst, num);
   1411 
   1412 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1413 		return;
   1414 	if (ri->ri_bits == NULL)
   1415 		return;
   1416 
   1417 	if (sc && sc->sc_accessops->bitblit
   1418 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1419 		dc->dc_state |= HPCFB_DC_DRAWING;
   1420 		srcyoff = src * ri->ri_font->fontheight;
   1421 		dstyoff = dst * ri->ri_font->fontheight;
   1422 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1423 		height = num * ri->ri_font->fontheight;
   1424 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1425 			0, srcyoff, 0, dstyoff, height, width);
   1426 		dc->dc_state &= ~HPCFB_DC_DRAWING;
   1427 	}
   1428 	else {
   1429 #ifdef HPCFB_JUMP
   1430 		if (sc && sc->sc_polling) {
   1431 			hpcfb_check_update(dc);
   1432 		} else if ((dc->dc_state&HPCFB_DC_SCROLLPENDING) == 0) {
   1433 			dc->dc_state |= HPCFB_DC_SCROLLPENDING;
   1434 			dc->dc_scroll = 1;
   1435 			dc->dc_scroll_src = src;
   1436 			dc->dc_scroll_dst = dst;
   1437 			dc->dc_scroll_num = num;
   1438 			callout_reset(&dc->dc_scroll_ch, hz/100, &hpcfb_do_scroll, dc);
   1439 			return;
   1440 		} else if (dc->dc_scroll++ < dc->dc_rows/HPCFB_MAX_JUMP) {
   1441 			dc->dc_state |= HPCFB_DC_UPDATE;
   1442 			return;
   1443 		} else {
   1444 			dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1445 			callout_stop(&dc->dc_scroll_ch);
   1446 		}
   1447 		if (dc->dc_state&HPCFB_DC_UPDATE) {
   1448 			dc->dc_state &= ~HPCFB_DC_UPDATE;
   1449 			hpcfb_redraw(cookie, dc->dc_min_row,
   1450 					dc->dc_max_row - dc->dc_min_row, 0);
   1451 			dc->dc_max_row = 0;
   1452 			dc->dc_min_row = dc->dc_rows;
   1453 			if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1454 				hpcfb_cursor(dc, 1,  dc->dc_cury, dc->dc_curx);
   1455 			return;
   1456 		}
   1457 #endif /* HPCFB_JUMP */
   1458 		hpcfb_redraw(cookie, dst, num, 0);
   1459 	}
   1460 #ifdef HPCFB_JUMP
   1461 	hpcfb_check_update(dc);
   1462 #endif /* HPCFB_JUMP */
   1463 }
   1464 
   1465 /*
   1466  * eraserows
   1467  */
   1468 void
   1469 hpcfb_tv_eraserows(dc, row, nrow, attr)
   1470 	struct hpcfb_devconfig *dc;
   1471 	int row, nrow;
   1472 	long attr;
   1473 {
   1474 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1475 	int cols;
   1476 	int i;
   1477 
   1478 	if (vscn == 0)
   1479 		return;
   1480 
   1481 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1482 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1483 #ifdef HPCFB_JUMP
   1484 	if (row < dc->dc_min_row)
   1485 		dc->dc_min_row = row;
   1486 	if (row + nrow > dc->dc_max_row)
   1487 		dc->dc_max_row = row + nrow;
   1488 #endif /* HPCFB_JUMP */
   1489 
   1490 	for (i = 0; i < nrow; i++) {
   1491 		cols = vscn[row+i].maxcol;
   1492 		if (vscn[row+i].spacecol < cols)
   1493 			vscn[row+i].spacecol = cols;
   1494 		vscn[row+i].maxcol = -1;
   1495 	}
   1496 #ifdef HPCFB_JUMP
   1497 	hpcfb_check_update(dc);
   1498 #endif /* HPCFB_JUMP */
   1499 }
   1500 
   1501 void
   1502 hpcfb_eraserows(cookie, row, nrow, attr)
   1503 	void *cookie;
   1504 	int row, nrow;
   1505 	long attr;
   1506 {
   1507 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1508 	struct hpcfb_softc *sc = dc->dc_sc;
   1509 	struct rasops_info *ri = &dc->dc_rinfo;
   1510 	int yoff;
   1511 	int width;
   1512 	int height;
   1513 
   1514 	hpcfb_tv_eraserows(dc, row, nrow, attr);
   1515 #ifdef HPCFB_JUMP
   1516 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1517 		dc->dc_state |= HPCFB_DC_UPDATE;
   1518 		return;
   1519 	}
   1520 #endif /* HPCFB_JUMP */
   1521 	if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1522 		return;
   1523 	if (ri->ri_bits == NULL)
   1524 		return;
   1525 
   1526 	dc->dc_state |= HPCFB_DC_DRAWING;
   1527 	if (sc && sc->sc_accessops->erase
   1528 	       && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1529 		yoff = row * ri->ri_font->fontheight;
   1530 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1531 		height = nrow * ri->ri_font->fontheight;
   1532 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1533 			0, yoff, height, width, attr);
   1534 	} else
   1535 		rasops_emul.eraserows(ri, row, nrow, attr);
   1536 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1537 #ifdef HPCFB_JUMP
   1538 	hpcfb_check_update(dc);
   1539 #endif /* HPCFB_JUMP */
   1540 }
   1541 
   1542 /*
   1543  * alloc_attr
   1544  */
   1545 int
   1546 hpcfb_alloc_attr(cookie, fg, bg, flags, attrp)
   1547 	void *cookie;
   1548 	int fg, bg, flags;
   1549 	long *attrp;
   1550 {
   1551 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1552 	struct rasops_info *ri = &dc->dc_rinfo;
   1553 
   1554 	return rasops_emul.alloc_attr(ri, fg, bg, flags, attrp);
   1555 }
   1556