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hpcfb.c revision 1.39
      1 /*	$NetBSD: hpcfb.c,v 1.39 2006/10/12 21:19:13 uwe 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 #include <sys/cdefs.h>
     46 __KERNEL_RCSID(0, "$NetBSD: hpcfb.c,v 1.39 2006/10/12 21:19:13 uwe Exp $");
     47 
     48 #ifdef _KERNEL_OPT
     49 #include "opt_hpcfb.h"
     50 #endif
     51 
     52 #include <sys/param.h>
     53 #include <sys/systm.h>
     54 #include <sys/kernel.h>
     55 #include <sys/signalvar.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 
     70 #include <dev/wscons/wsconsio.h>
     71 #include <dev/wscons/wsdisplayvar.h>
     72 #include <dev/wscons/wscons_callbacks.h>
     73 
     74 #include <dev/wsfont/wsfont.h>
     75 #include <dev/rasops/rasops.h>
     76 
     77 #include <dev/hpc/hpcfbvar.h>
     78 #include <dev/hpc/hpcfbio.h>
     79 
     80 #include "bivideo.h"
     81 #if NBIVIDEO > 0
     82 #include <dev/hpc/bivideovar.h>
     83 #endif
     84 
     85 #ifdef FBDEBUG
     86 int	hpcfb_debug = 0;
     87 #define	DPRINTF(arg)	if (hpcfb_debug) printf arg
     88 #else
     89 #define	DPRINTF(arg)	do {} while (/* CONSTCOND */ 0)
     90 #endif
     91 
     92 #ifndef HPCFB_MAX_COLUMN
     93 #define HPCFB_MAX_COLUMN 130
     94 #endif /* HPCFB_MAX_COLUMN */
     95 #ifndef HPCFB_MAX_ROW
     96 #define HPCFB_MAX_ROW 80
     97 #endif /* HPCFB_MAX_ROW */
     98 
     99 /*
    100  * currently experimental
    101 #define HPCFB_JUMP
    102 */
    103 
    104 struct hpcfb_vchar {
    105 	u_int c;
    106 	long attr;
    107 };
    108 
    109 struct hpcfb_tvrow {
    110 	int maxcol;
    111 	int spacecol;
    112 	struct hpcfb_vchar col[HPCFB_MAX_COLUMN];
    113 };
    114 
    115 struct hpcfb_devconfig {
    116 	struct rasops_info	dc_rinfo;	/* rasops information */
    117 
    118 	int		dc_blanked;	/* currently had video disabled */
    119 	struct hpcfb_softc *dc_sc;
    120 	int dc_rows;
    121 	int dc_cols;
    122 	struct hpcfb_tvrow *dc_tvram;
    123 	int dc_curx;
    124 	int dc_cury;
    125 #ifdef HPCFB_JUMP
    126 	int dc_min_row;
    127 	int dc_max_row;
    128 	int dc_scroll;
    129 	struct callout dc_scroll_ch;
    130 	int dc_scroll_src;
    131 	int dc_scroll_dst;
    132 	int dc_scroll_num;
    133 #endif /* HPCFB_JUMP */
    134 	volatile int dc_state;
    135 #define HPCFB_DC_CURRENT		0x80000000
    136 #define HPCFB_DC_DRAWING		0x01	/* drawing raster ops */
    137 #define HPCFB_DC_TDRAWING		0x02	/* drawing tvram */
    138 #define HPCFB_DC_SCROLLPENDING		0x04	/* scroll is pending */
    139 #define HPCFB_DC_UPDATE			0x08	/* tvram update */
    140 #define HPCFB_DC_SCRDELAY		0x10	/* scroll time but delay it */
    141 #define HPCFB_DC_SCRTHREAD		0x20	/* in scroll thread or callout */
    142 #define HPCFB_DC_UPDATEALL		0x40	/* need to redraw all */
    143 #define HPCFB_DC_ABORT			0x80	/* abort redrawing */
    144 #define	HPCFB_DC_SWITCHREQ		0x100	/* switch request exist */
    145 	int	dc_memsize;
    146 	u_char *dc_fbaddr;
    147 };
    148 
    149 #define IS_DRAWABLE(dc) \
    150 	(((dc)->dc_state&HPCFB_DC_CURRENT)&& \
    151 	 (((dc)->dc_state&(HPCFB_DC_DRAWING|HPCFB_DC_SWITCHREQ)) == 0))
    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 	const struct hpcfb_accessops	*sc_accessops;
    160 	void *sc_accessctx;
    161 	void *sc_powerhook;	/* power management hook */
    162 	struct device *sc_wsdisplay;
    163 	int sc_screen_resumed;
    164 	int sc_polling;
    165 	int sc_mapping;
    166 	struct proc *sc_thread;
    167 	struct lock sc_lock;
    168 	void *sc_wantedscreen;
    169 	void (*sc_switchcb)(void *, int, int);
    170 	void *sc_switchcbarg;
    171 	struct callout sc_switch_callout;
    172 	int sc_nfbconf;
    173 	struct hpcfb_fbconf *sc_fbconflist;
    174 };
    175 
    176 /*
    177  *  function prototypes
    178  */
    179 int	hpcfbmatch(struct device *, struct cfdata *, void *);
    180 void	hpcfbattach(struct device *, struct device *, void *);
    181 int	hpcfbprint(void *, const char *);
    182 
    183 int	hpcfb_ioctl(void *, void *, u_long, caddr_t, int, struct lwp *);
    184 paddr_t	hpcfb_mmap(void *, void *, off_t, int);
    185 
    186 void	hpcfb_refresh_screen(struct hpcfb_softc *);
    187 void	hpcfb_doswitch(struct hpcfb_softc *);
    188 
    189 #ifdef HPCFB_JUMP
    190 static void	hpcfb_create_thread(void *);
    191 static void	hpcfb_thread(void *);
    192 #endif /* HPCFB_JUMP */
    193 
    194 static int	hpcfb_init(struct hpcfb_fbconf *, struct hpcfb_devconfig *);
    195 static int	hpcfb_alloc_screen(void *, const struct wsscreen_descr *,
    196 		    void **, int *, int *, long *);
    197 static void	hpcfb_free_screen(void *, void *);
    198 static int	hpcfb_show_screen(void *, void *, int,
    199 		    void (*) (void *, int, int), void *);
    200 static void     hpcfb_pollc(void *, int);
    201 static void	hpcfb_power(int, void *);
    202 static void	hpcfb_cmap_reorder(struct hpcfb_fbconf *,
    203 		    struct hpcfb_devconfig *);
    204 
    205 void    hpcfb_cursor(void *, int, int, int);
    206 int     hpcfb_mapchar(void *, int, unsigned int *);
    207 void    hpcfb_putchar(void *, int, int, u_int, long);
    208 void    hpcfb_copycols(void *, int, int, int, int);
    209 void    hpcfb_erasecols(void *, int, int, int, long);
    210 void    hpcfb_redraw(void *, int, int, int);
    211 void    hpcfb_copyrows(void *, int, int, int);
    212 void    hpcfb_eraserows(void *, int, int, long);
    213 int     hpcfb_allocattr(void *, int, int, int, long *);
    214 void    hpcfb_cursor_raw(void *, int, int, int);
    215 
    216 #ifdef HPCFB_JUMP
    217 void	hpcfb_update(void *);
    218 void	hpcfb_do_scroll(void *);
    219 void	hpcfb_check_update(void *);
    220 #endif /* HPCFB_JUMP */
    221 
    222 struct wsdisplay_emulops hpcfb_emulops = {
    223 	.cursor		= hpcfb_cursor,
    224 	.mapchar	= hpcfb_mapchar,
    225 	.putchar	= hpcfb_putchar,
    226 	.copycols	= hpcfb_copycols,
    227 	.erasecols	= hpcfb_erasecols,
    228 	.copyrows	= hpcfb_copyrows,
    229 	.eraserows	= hpcfb_eraserows,
    230 	.allocattr	= hpcfb_allocattr,
    231 	.replaceattr	= NULL,
    232 };
    233 
    234 /*
    235  *  static variables
    236  */
    237 CFATTACH_DECL(hpcfb, sizeof(struct hpcfb_softc),
    238     hpcfbmatch, hpcfbattach, NULL, NULL);
    239 
    240 struct wsscreen_descr hpcfb_stdscreen = {
    241 	.name		= "std",
    242 	.textops	= &hpcfb_emulops, /* XXX */
    243 	.capabilities	= WSSCREEN_REVERSE,
    244 	/* XXX: ncols/nrows will be filled in -- shouldn't, they are global */
    245 };
    246 
    247 const struct wsscreen_descr *_hpcfb_scrlist[] = {
    248 	&hpcfb_stdscreen,
    249 	/* XXX other formats, graphics screen? */
    250 };
    251 
    252 struct wsscreen_list hpcfb_screenlist = {
    253 	.nscreens = __arraycount(_hpcfb_scrlist),
    254 	.screens = _hpcfb_scrlist,
    255 };
    256 
    257 struct wsdisplay_accessops hpcfb_accessops = {
    258 	.ioctl		= hpcfb_ioctl,
    259 	.mmap		= hpcfb_mmap,
    260 	.alloc_screen	= hpcfb_alloc_screen,
    261 	.free_screen	= hpcfb_free_screen,
    262 	.show_screen	= hpcfb_show_screen,
    263 	.load_font	= NULL,
    264 	.pollc		= hpcfb_pollc,
    265 	.scroll		= NULL,
    266 };
    267 
    268 void    hpcfb_tv_putchar(struct hpcfb_devconfig *, int, int, u_int, long);
    269 void    hpcfb_tv_copycols(struct hpcfb_devconfig *, int, int, int, int);
    270 void    hpcfb_tv_erasecols(struct hpcfb_devconfig *, int, int, int, long);
    271 void    hpcfb_tv_copyrows(struct hpcfb_devconfig *, int, int, int);
    272 void    hpcfb_tv_eraserows(struct hpcfb_devconfig *, int, int, long);
    273 
    274 struct wsdisplay_emulops rasops_emul;
    275 
    276 static int hpcfbconsole;
    277 struct hpcfb_devconfig hpcfb_console_dc;
    278 struct wsscreen_descr hpcfb_console_wsscreen;
    279 struct hpcfb_tvrow hpcfb_console_tvram[HPCFB_MAX_ROW];
    280 
    281 /*
    282  *  function bodies
    283  */
    284 
    285 int
    286 hpcfbmatch(struct device *parent __unused,
    287 	   struct cfdata *match __unused, void *aux __unused)
    288 {
    289 	return (1);
    290 }
    291 
    292 void
    293 hpcfbattach(struct device *parent __unused,
    294 	    struct device *self, void *aux)
    295 {
    296 	struct hpcfb_softc *sc = device_private(self);
    297 	struct hpcfb_attach_args *ha = aux;
    298 	struct wsemuldisplaydev_attach_args wa;
    299 
    300 	sc->sc_accessops = ha->ha_accessops;
    301 	sc->sc_accessctx = ha->ha_accessctx;
    302 	sc->sc_nfbconf = ha->ha_nfbconf;
    303 	sc->sc_fbconflist = ha->ha_fbconflist;
    304 
    305 	if (hpcfbconsole) {
    306 		sc->sc_dc = &hpcfb_console_dc;
    307 		hpcfb_console_dc.dc_sc = sc;
    308 		printf(": %dx%d pixels, %d colors, %dx%d chars",
    309 		    sc->sc_dc->dc_rinfo.ri_width,sc->sc_dc->dc_rinfo.ri_height,
    310 		    (1 << sc->sc_dc->dc_rinfo.ri_depth),
    311 		    sc->sc_dc->dc_rinfo.ri_cols,sc->sc_dc->dc_rinfo.ri_rows);
    312 		/* Set video chip dependent CLUT if any. */
    313 		if (sc->sc_accessops->setclut)
    314 			sc->sc_accessops->setclut(sc->sc_accessctx,
    315 			    &hpcfb_console_dc.dc_rinfo);
    316 	}
    317 	printf("\n");
    318 
    319 	sc->sc_polling = 0; /* XXX */
    320 	sc->sc_mapping = 0; /* XXX */
    321 	callout_init(&sc->sc_switch_callout);
    322 
    323 	/* Add a power hook to power management */
    324 	sc->sc_powerhook = powerhook_establish(sc->sc_dev.dv_xname,
    325 	    hpcfb_power, sc);
    326 	if (sc->sc_powerhook == NULL)
    327 		printf("%s: WARNING: unable to establish power hook\n",
    328 		    sc->sc_dev.dv_xname);
    329 
    330 	wa.console = hpcfbconsole;
    331 	wa.scrdata = &hpcfb_screenlist;
    332 	wa.accessops = &hpcfb_accessops;
    333 	wa.accesscookie = sc;
    334 
    335 	sc->sc_wsdisplay = config_found(self, &wa, wsemuldisplaydevprint);
    336 
    337 #ifdef HPCFB_JUMP
    338 	/*
    339 	 * Create a kernel thread to scroll,
    340 	 */
    341 	kthread_create(hpcfb_create_thread, sc);
    342 #endif /* HPCFB_JUMP */
    343 }
    344 
    345 #ifdef HPCFB_JUMP
    346 void
    347 hpcfb_create_thread(void *arg)
    348 {
    349 	struct hpcfb_softc *sc = arg;
    350 
    351 	if (kthread_create1(hpcfb_thread, sc, &sc->sc_thread,
    352 	    "%s", sc->sc_dev.dv_xname) == 0)
    353 		return;
    354 
    355 	/*
    356 	 * We were unable to create the HPCFB thread; bail out.
    357 	 */
    358 	sc->sc_thread = 0;
    359 	printf("%s: unable to create thread, kernel hpcfb scroll support disabled\n",
    360 	    sc->sc_dev.dv_xname);
    361 }
    362 
    363 void
    364 hpcfb_thread(void *arg)
    365 {
    366 	struct hpcfb_softc *sc = arg;
    367 
    368 	/*
    369 	 * Loop forever, doing a periodic check for update events.
    370 	 */
    371 	for (;;) {
    372 		/* HPCFB_LOCK(sc); */
    373 		sc->sc_dc->dc_state |= HPCFB_DC_SCRTHREAD;
    374 		if (!sc->sc_mapping) /* draw only EMUL mode */
    375 			hpcfb_update(sc->sc_dc);
    376 		sc->sc_dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
    377 		/* APM_UNLOCK(sc); */
    378 		(void) tsleep(sc, PWAIT, "hpcfb",  (8 * hz) / 7 / 10);
    379 	}
    380 }
    381 #endif /* HPCFB_JUMP */
    382 
    383 /* Print function (for parent devices). */
    384 int
    385 hpcfbprint(void *aux __unused, const char *pnp)
    386 {
    387 	if (pnp)
    388 		aprint_normal("hpcfb at %s", pnp);
    389 
    390 	return (UNCONF);
    391 }
    392 
    393 int
    394 hpcfb_cnattach(struct hpcfb_fbconf *fbconf)
    395 {
    396 #if NBIVIDEO > 0
    397 	struct hpcfb_fbconf __fbconf;
    398 #endif
    399 	long defattr;
    400 
    401 	DPRINTF(("%s(%d): hpcfb_cnattach()\n", __FILE__, __LINE__));
    402 #if NBIVIDEO > 0
    403 	if (fbconf == NULL) {
    404 		memset(&__fbconf, 0, sizeof(struct hpcfb_fbconf));
    405 		if (bivideo_getcnfb(&__fbconf) != 0)
    406 			return (ENXIO);
    407 		fbconf = &__fbconf;
    408 	}
    409 #endif /* NBIVIDEO > 0 */
    410 	memset(&hpcfb_console_dc, 0, sizeof(struct hpcfb_devconfig));
    411 	if (hpcfb_init(fbconf, &hpcfb_console_dc) != 0)
    412 		return (ENXIO);
    413 	hpcfb_console_dc.dc_state |= HPCFB_DC_CURRENT;
    414 
    415 	hpcfb_console_dc.dc_tvram = hpcfb_console_tvram;
    416 	/* clear screen */
    417 	memset(hpcfb_console_tvram, 0, sizeof(hpcfb_console_tvram));
    418 	hpcfb_redraw(&hpcfb_console_dc, 0, hpcfb_console_dc.dc_rows, 1);
    419 
    420 	hpcfb_console_wsscreen = hpcfb_stdscreen;
    421 	hpcfb_console_wsscreen.nrows = hpcfb_console_dc.dc_rows;
    422 	hpcfb_console_wsscreen.ncols = hpcfb_console_dc.dc_cols;
    423 	hpcfb_console_wsscreen.capabilities = hpcfb_console_dc.dc_rinfo.ri_caps;
    424 	hpcfb_allocattr(&hpcfb_console_dc,
    425 			WSCOL_WHITE, WSCOL_BLACK, 0, &defattr);
    426 	wsdisplay_cnattach(&hpcfb_console_wsscreen, &hpcfb_console_dc,
    427 	    0, 0, defattr);
    428 	hpcfbconsole = 1;
    429 
    430 	return (0);
    431 }
    432 
    433 int
    434 hpcfb_init(struct hpcfb_fbconf *fbconf,	struct hpcfb_devconfig *dc)
    435 {
    436 	struct rasops_info *ri;
    437 	vaddr_t fbaddr;
    438 
    439 	fbaddr = (vaddr_t)fbconf->hf_baseaddr;
    440 	dc->dc_fbaddr = (u_char *)fbaddr;
    441 
    442 	/* init rasops */
    443 	ri = &dc->dc_rinfo;
    444 	memset(ri, 0, sizeof(struct rasops_info));
    445 	ri->ri_depth = fbconf->hf_pixel_width;
    446 	ri->ri_bits = (caddr_t)fbaddr;
    447 	ri->ri_width = fbconf->hf_width;
    448 	ri->ri_height = fbconf->hf_height;
    449 	ri->ri_stride = fbconf->hf_bytes_per_line;
    450 #if 0
    451 	ri->ri_flg = RI_FORCEMONO | RI_CURSOR;
    452 #else
    453 	ri->ri_flg = RI_CURSOR;
    454 #endif
    455 	switch (ri->ri_depth) {
    456 	case 8:
    457 		if (32 <= fbconf->hf_pack_width &&
    458 		    (fbconf->hf_order_flags & HPCFB_REVORDER_BYTE) &&
    459 		    (fbconf->hf_order_flags & HPCFB_REVORDER_WORD)) {
    460 			ri->ri_flg |= RI_BSWAP;
    461 		}
    462 		break;
    463 	default:
    464 		if (fbconf->hf_order_flags & HPCFB_REVORDER_BYTE) {
    465 #if BYTE_ORDER == BIG_ENDIAN
    466 			ri->ri_flg |= RI_BSWAP;
    467 #endif
    468 		} else {
    469 #if BYTE_ORDER == LITTLE_ENDIAN
    470 			ri->ri_flg |= RI_BSWAP;
    471 #endif
    472 		}
    473 		break;
    474 	}
    475 
    476 	if (fbconf->hf_class == HPCFB_CLASS_RGBCOLOR) {
    477 		ri->ri_rnum = fbconf->hf_u.hf_rgb.hf_red_width;
    478 		ri->ri_rpos = fbconf->hf_u.hf_rgb.hf_red_shift;
    479 		ri->ri_gnum = fbconf->hf_u.hf_rgb.hf_green_width;
    480 		ri->ri_gpos = fbconf->hf_u.hf_rgb.hf_green_shift;
    481 		ri->ri_bnum = fbconf->hf_u.hf_rgb.hf_blue_width;
    482 		ri->ri_bpos = fbconf->hf_u.hf_rgb.hf_blue_shift;
    483 	}
    484 
    485 	if (rasops_init(ri, HPCFB_MAX_ROW, HPCFB_MAX_COLUMN)) {
    486 		panic("%s(%d): rasops_init() failed!", __FILE__, __LINE__);
    487 	}
    488 
    489 	/* over write color map of rasops */
    490 	hpcfb_cmap_reorder (fbconf, dc);
    491 
    492 	dc->dc_curx = -1;
    493 	dc->dc_cury = -1;
    494 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    495 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    496 #ifdef HPCFB_JUMP
    497 	dc->dc_max_row = 0;
    498 	dc->dc_min_row = dc->dc_rows;
    499 	dc->dc_scroll = 0;
    500 	callout_init(&dc->dc_scroll_ch);
    501 #endif /* HPCFB_JUMP */
    502 	dc->dc_memsize = ri->ri_stride * ri->ri_height;
    503 	/* hook rasops in hpcfb_ops */
    504 	rasops_emul = ri->ri_ops; /* struct copy */
    505 	ri->ri_ops = hpcfb_emulops; /* struct copy */
    506 
    507 	return (0);
    508 }
    509 
    510 static void
    511 hpcfb_cmap_reorder(struct hpcfb_fbconf *fbconf, struct hpcfb_devconfig *dc)
    512 {
    513 	struct rasops_info *ri = &dc->dc_rinfo;
    514 	int reverse = fbconf->hf_access_flags & HPCFB_ACCESS_REVERSE;
    515 	int *cmap = ri->ri_devcmap;
    516 	int i, j, bg, fg, tmp;
    517 
    518 	/*
    519 	 * Set forground and background so that the screen
    520 	 * looks black on white.
    521 	 * Normally, black = 00 and white = ff.
    522 	 * HPCFB_ACCESS_REVERSE means black = ff and white = 00.
    523 	 */
    524 	switch (fbconf->hf_pixel_width) {
    525 	case 1:
    526 		/* FALLTHROUGH */
    527 	case 2:
    528 		/* FALLTHROUGH */
    529 	case 4:
    530 		if (reverse) {
    531 			bg = 0;
    532 			fg = ~0;
    533 		} else {
    534 			bg = ~0;
    535 			fg = 0;
    536 		}
    537 		/* for gray-scale LCD, hi-contrast color map */
    538 		cmap[0] = bg;
    539 		for (i = 1; i < 16; i++)
    540 			cmap[i] = fg;
    541 		break;
    542 	case 8:
    543 		/* FALLTHROUGH */
    544 	case 16:
    545 		if (reverse) {
    546 			for (i = 0, j = 15; i < 8; i++, j--) {
    547 				tmp = cmap[i];
    548 				cmap[i] = cmap[j];
    549 				cmap[j] = tmp;
    550 			}
    551 		}
    552 		break;
    553 	}
    554 }
    555 
    556 int
    557 hpcfb_ioctl(void *v, void *vs __unused, u_long cmd, caddr_t data, int flag,
    558 	struct lwp *l)
    559 {
    560 	struct hpcfb_softc *sc = v;
    561 	struct hpcfb_devconfig *dc = sc->sc_dc;
    562 	struct wsdisplay_fbinfo *wdf;
    563 
    564 	DPRINTF(("hpcfb_ioctl(cmd=0x%lx)\n", cmd));
    565 	switch (cmd) {
    566 	case WSKBDIO_BELL:
    567 		return (0);
    568 		break;
    569 
    570 	case WSDISPLAYIO_GTYPE:
    571 		*(u_int *)data = WSDISPLAY_TYPE_HPCFB;
    572 		return (0);
    573 
    574 	case WSDISPLAYIO_GINFO:
    575 		wdf = (void *)data;
    576 		wdf->height = dc->dc_rinfo.ri_height;
    577 		wdf->width = dc->dc_rinfo.ri_width;
    578 		wdf->depth = dc->dc_rinfo.ri_depth;
    579 		wdf->cmsize = 256;	/* XXXX */
    580 		return (0);
    581 
    582 	case WSDISPLAYIO_SMODE:
    583 		if (*(int *)data == WSDISPLAYIO_MODE_EMUL){
    584 			if (sc->sc_mapping){
    585 				sc->sc_mapping = 0;
    586 				if (dc->dc_state&HPCFB_DC_DRAWING)
    587 					dc->dc_state &= ~HPCFB_DC_ABORT;
    588 #ifdef HPCFB_FORCE_REDRAW
    589 				hpcfb_refresh_screen(sc);
    590 #else
    591 				dc->dc_state |= HPCFB_DC_UPDATEALL;
    592 #endif
    593 			}
    594 		} else {
    595 			if (!sc->sc_mapping) {
    596 				sc->sc_mapping = 1;
    597 				dc->dc_state |= HPCFB_DC_ABORT;
    598 			}
    599 			sc->sc_mapping = 1;
    600 		}
    601 		if (sc && sc->sc_accessops->iodone)
    602 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    603 		return (0);
    604 
    605 	case WSDISPLAYIO_GETCMAP:
    606 	case WSDISPLAYIO_PUTCMAP:
    607 	case WSDISPLAYIO_SVIDEO:
    608 	case WSDISPLAYIO_GVIDEO:
    609 	case WSDISPLAYIO_GETPARAM:
    610 	case WSDISPLAYIO_SETPARAM:
    611 	case HPCFBIO_GCONF:
    612 	case HPCFBIO_SCONF:
    613 	case HPCFBIO_GDSPCONF:
    614 	case HPCFBIO_SDSPCONF:
    615 	case HPCFBIO_GOP:
    616 	case HPCFBIO_SOP:
    617 		return ((*sc->sc_accessops->ioctl)(sc->sc_accessctx,
    618 		    cmd, data, flag, l));
    619 
    620 	default:
    621 		if (IOCGROUP(cmd) != 't')
    622 			DPRINTF(("%s(%d): hpcfb_ioctl(%lx, %lx) grp=%c num=%ld\n",
    623 			    __FILE__, __LINE__,
    624 			    cmd, (u_long)data, (char)IOCGROUP(cmd), cmd&0xff));
    625 		break;
    626 	}
    627 
    628 	return (EPASSTHROUGH); /* Inappropriate ioctl for device */
    629 }
    630 
    631 paddr_t
    632 hpcfb_mmap(void *v, void *vs __unused, off_t offset, int prot)
    633 {
    634 	struct hpcfb_softc *sc = v;
    635 
    636 	return ((*sc->sc_accessops->mmap)(sc->sc_accessctx, offset, prot));
    637 }
    638 
    639 static void
    640 hpcfb_power(int why, void *arg)
    641 {
    642 	struct hpcfb_softc *sc = arg;
    643 
    644 	if (sc->sc_dc == NULL)
    645 		return;	/* You have no screen yet. */
    646 
    647 	switch (why) {
    648 	case PWR_STANDBY:
    649 		break;
    650 	case PWR_SOFTSUSPEND:
    651 		/* XXX, casting to 'struct wsdisplay_softc *' means
    652 		   that you should not call the method here... */
    653 		sc->sc_screen_resumed = wsdisplay_getactivescreen(
    654 			(struct wsdisplay_softc *)sc->sc_wsdisplay);
    655 		if (wsdisplay_switch(sc->sc_wsdisplay,
    656 		    WSDISPLAY_NULLSCREEN,
    657 		    1 /* waitok */) == 0) {
    658 			wsscreen_switchwait(
    659 				(struct wsdisplay_softc *)sc->sc_wsdisplay,
    660 				WSDISPLAY_NULLSCREEN);
    661 		} else {
    662 			sc->sc_screen_resumed = WSDISPLAY_NULLSCREEN;
    663 		}
    664 
    665 		sc->sc_dc->dc_state &= ~HPCFB_DC_CURRENT;
    666 		break;
    667 	case PWR_SOFTRESUME:
    668 		sc->sc_dc->dc_state |= HPCFB_DC_CURRENT;
    669 		if (sc->sc_screen_resumed != WSDISPLAY_NULLSCREEN)
    670 			wsdisplay_switch(sc->sc_wsdisplay,
    671 			    sc->sc_screen_resumed,
    672 			    1 /* waitok */);
    673 		break;
    674 	}
    675 }
    676 
    677 void
    678 hpcfb_refresh_screen(struct hpcfb_softc *sc)
    679 {
    680 	struct hpcfb_devconfig *dc = sc->sc_dc;
    681 	int x, y;
    682 
    683 	DPRINTF(("hpcfb_refres_screen()\n"));
    684 	if (dc == NULL)
    685 		return;
    686 
    687 #ifdef HPCFB_JUMP
    688 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    689 		dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
    690 		dc->dc_state &= ~HPCFB_DC_UPDATE;
    691 		callout_stop(&dc->dc_scroll_ch);
    692 	}
    693 #endif /* HPCFB_JUMP */
    694 	/*
    695 	 * refresh screen
    696 	 */
    697 	dc->dc_state &= ~HPCFB_DC_UPDATEALL;
    698 	x = dc->dc_curx;
    699 	y = dc->dc_cury;
    700 	if (0 <= x && 0 <= y)
    701 		hpcfb_cursor_raw(dc, 0,  y, x); /* disable cursor */
    702 	/* redraw all text */
    703 	hpcfb_redraw(dc, 0, dc->dc_rows, 1);
    704 	if (0 <= x && 0 <= y)
    705 		hpcfb_cursor_raw(dc, 1,  y, x); /* enable cursor */
    706 }
    707 
    708 static int
    709 hpcfb_alloc_screen(void *v, const struct wsscreen_descr *type __unused,
    710 		   void **cookiep, int *curxp, int *curyp, long *attrp)
    711 {
    712 	struct hpcfb_softc *sc = v;
    713 	struct hpcfb_devconfig *dc;
    714 
    715 	DPRINTF(("%s(%d): hpcfb_alloc_screen()\n", __FILE__, __LINE__));
    716 
    717 	dc = malloc(sizeof(struct hpcfb_devconfig), M_DEVBUF, M_WAITOK|M_ZERO);
    718 	if (dc == NULL)
    719 		return (ENOMEM);
    720 
    721 	dc->dc_sc = sc;
    722 	if (hpcfb_init(&sc->sc_fbconflist[0], dc) != 0)
    723 		return (EINVAL);
    724 	if (sc->sc_accessops->font) {
    725 		sc->sc_accessops->font(sc->sc_accessctx,
    726 		    dc->dc_rinfo.ri_font);
    727 	}
    728 	/* Set video chip dependent CLUT if any. */
    729 	if (sc->sc_accessops->setclut)
    730 		sc->sc_accessops->setclut(sc->sc_accessctx, &dc->dc_rinfo);
    731 	printf("hpcfb: %dx%d pixels, %d colors, %dx%d chars\n",
    732 	    dc->dc_rinfo.ri_width, dc->dc_rinfo.ri_height,
    733 	    (1 << dc->dc_rinfo.ri_depth),
    734 	    dc->dc_rinfo.ri_cols, dc->dc_rinfo.ri_rows);
    735 
    736 	/*
    737 	 * XXX, wsdisplay won't reffer the information in wsscreen_descr
    738 	 * structure until alloc_screen will be called, at least, under
    739 	 * current implementation...
    740 	 */
    741 	hpcfb_stdscreen.nrows = dc->dc_rows;
    742         hpcfb_stdscreen.ncols = dc->dc_cols;
    743 	hpcfb_stdscreen.capabilities = dc->dc_rinfo.ri_caps;
    744 
    745 	dc->dc_fbaddr = dc->dc_rinfo.ri_bits;
    746 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    747 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    748 	dc->dc_memsize = dc->dc_rinfo.ri_stride * dc->dc_rinfo.ri_height;
    749 
    750 	dc->dc_curx = -1;
    751 	dc->dc_cury = -1;
    752 	dc->dc_tvram = malloc(sizeof(struct hpcfb_tvrow)*dc->dc_rows,
    753 	    M_DEVBUF, M_WAITOK|M_ZERO);
    754 	if (dc->dc_tvram == NULL){
    755 		free(dc, M_DEVBUF);
    756 		return (ENOMEM);
    757 	}
    758 
    759 	*curxp = 0;
    760 	*curyp = 0;
    761 	*cookiep = dc;
    762 	hpcfb_allocattr(*cookiep, WSCOL_WHITE, WSCOL_BLACK, 0, attrp);
    763 	DPRINTF(("%s(%d): hpcfb_alloc_screen(): %p\n",
    764 	    __FILE__, __LINE__, dc));
    765 
    766 	return (0);
    767 }
    768 
    769 static void
    770 hpcfb_free_screen(void *v __unused, void *cookie)
    771 {
    772 	struct hpcfb_devconfig *dc = cookie;
    773 
    774 	DPRINTF(("%s(%d): hpcfb_free_screen(%p)\n",
    775 	    __FILE__, __LINE__, cookie));
    776 #ifdef DIAGNOSTIC
    777 	if (dc == &hpcfb_console_dc)
    778 		panic("hpcfb_free_screen: console");
    779 #endif
    780 	free(dc->dc_tvram, M_DEVBUF);
    781 	free(dc, M_DEVBUF);
    782 }
    783 
    784 static int
    785 hpcfb_show_screen(void *v, void *cookie, int waitok __unused,
    786     void (*cb)(void *, int, int), void *cbarg)
    787 {
    788 	struct hpcfb_softc *sc = v;
    789 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    790 	struct hpcfb_devconfig *odc;
    791 
    792 	DPRINTF(("%s(%d): hpcfb_show_screen(%p)\n",
    793 	    __FILE__, __LINE__, dc));
    794 
    795 	odc = sc->sc_dc;
    796 
    797 	if (dc == NULL || odc == dc) {
    798 		hpcfb_refresh_screen(sc);
    799 		return (0);
    800 	}
    801 
    802 	if (odc != NULL) {
    803 		odc->dc_state |= HPCFB_DC_SWITCHREQ;
    804 
    805 		if ((odc->dc_state&HPCFB_DC_DRAWING) != 0) {
    806 			odc->dc_state |= HPCFB_DC_ABORT;
    807 		}
    808 	}
    809 
    810 	sc->sc_wantedscreen = cookie;
    811 	sc->sc_switchcb = cb;
    812 	sc->sc_switchcbarg = cbarg;
    813 	if (cb) {
    814 		callout_reset(&sc->sc_switch_callout, 0,
    815 		    (void(*)(void *))hpcfb_doswitch, sc);
    816 		return (EAGAIN);
    817 	}
    818 
    819 	hpcfb_doswitch(sc);
    820 	return (0);
    821 }
    822 
    823 void
    824 hpcfb_doswitch(struct hpcfb_softc *sc)
    825 {
    826 	struct hpcfb_devconfig *dc;
    827 	struct hpcfb_devconfig *odc;
    828 
    829 	DPRINTF(("hpcfb_doswitch()\n"));
    830 	odc = sc->sc_dc;
    831 	dc = sc->sc_wantedscreen;
    832 
    833 	if (!dc) {
    834 		(*sc->sc_switchcb)(sc->sc_switchcbarg, EIO, 0);
    835 		odc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    836 		return;
    837 	}
    838 
    839 	if (odc == dc) {
    840 		odc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    841 		return;
    842 	}
    843 
    844 	if (odc) {
    845 #ifdef HPCFB_JUMP
    846 		odc->dc_state |= HPCFB_DC_ABORT;
    847 #endif /* HPCFB_JUMP */
    848 
    849 		if (odc->dc_curx >= 0 && odc->dc_cury >= 0)
    850 			hpcfb_cursor_raw(odc, 0,  odc->dc_cury, odc->dc_curx);
    851 		/* disable cursor */
    852 		/* disable old screen */
    853 		odc->dc_state &= ~HPCFB_DC_CURRENT;
    854 		/* XXX, This is too dangerous.
    855 		odc->dc_rinfo.ri_bits = NULL;
    856 		*/
    857 	}
    858 	/* switch screen to new one */
    859 	dc->dc_state |= HPCFB_DC_CURRENT;
    860 	dc->dc_state &= ~HPCFB_DC_ABORT;
    861 	dc->dc_rinfo.ri_bits = dc->dc_fbaddr;
    862 	sc->sc_dc = dc;
    863 
    864 	/* redraw screen image */
    865 	hpcfb_refresh_screen(sc);
    866 
    867 	sc->sc_wantedscreen = NULL;
    868 	if (sc->sc_switchcb)
    869 		(*sc->sc_switchcb)(sc->sc_switchcbarg, 0, 0);
    870 
    871 	if (odc != NULL)
    872 		odc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    873 	dc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    874 	return;
    875 }
    876 
    877 static void
    878 hpcfb_pollc(void *v, int on)
    879 {
    880 	struct hpcfb_softc *sc = v;
    881 
    882 	if (sc == NULL)
    883 		return;
    884 	sc->sc_polling = on;
    885 	if (sc->sc_accessops->iodone)
    886 		(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    887 	if (on) {
    888 		hpcfb_refresh_screen(sc);
    889 		if (sc->sc_accessops->iodone)
    890 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    891 	}
    892 
    893 	return;
    894 }
    895 
    896 /*
    897  * cursor
    898  */
    899 void
    900 hpcfb_cursor(void *cookie, int on, int row, int col)
    901 {
    902 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    903 
    904 	if (on) {
    905 		dc->dc_curx = col;
    906 		dc->dc_cury = row;
    907 	} else {
    908 		dc->dc_curx = -1;
    909 		dc->dc_cury = -1;
    910 	}
    911 
    912 	hpcfb_cursor_raw(cookie, on, row, col);
    913 }
    914 
    915 void
    916 hpcfb_cursor_raw(cookie, on, row, col)
    917 	void *cookie;
    918 	int on, row, col;
    919 {
    920 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    921 	struct hpcfb_softc *sc = dc->dc_sc;
    922 	struct rasops_info *ri = &dc->dc_rinfo;
    923 	int curwidth, curheight;
    924 	int xoff, yoff;
    925 
    926 #ifdef HPCFB_JUMP
    927 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    928 		dc->dc_state |= HPCFB_DC_UPDATE;
    929 		return;
    930 	}
    931 #endif /* HPCFB_JUMP */
    932 	if (!IS_DRAWABLE(dc)) {
    933 		return;
    934 	}
    935 
    936 	if (ri->ri_bits == NULL)
    937 		return;
    938 
    939 	dc->dc_state |= HPCFB_DC_DRAWING;
    940 	if (sc && sc->sc_accessops->cursor) {
    941 		xoff = col * ri->ri_font->fontwidth;
    942 		yoff = row * ri->ri_font->fontheight;
    943 		curheight = ri->ri_font->fontheight;
    944 		curwidth = ri->ri_font->fontwidth;
    945 		(*sc->sc_accessops->cursor)(sc->sc_accessctx,
    946 		    on, xoff, yoff, curwidth, curheight);
    947 	} else
    948 		rasops_emul.cursor(ri, on, row, col);
    949 	dc->dc_state &= ~HPCFB_DC_DRAWING;
    950 }
    951 
    952 /*
    953  * mapchar
    954  */
    955 int
    956 hpcfb_mapchar(void *cookie, int c, unsigned int *cp)
    957 {
    958 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    959 	struct rasops_info *ri = &dc->dc_rinfo;
    960 
    961 	return (rasops_emul.mapchar(ri, c, cp));
    962 }
    963 
    964 /*
    965  * putchar
    966  */
    967 void
    968 hpcfb_tv_putchar(struct hpcfb_devconfig *dc, int row, int col, u_int uc,
    969     long attr)
    970 {
    971 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
    972 	struct hpcfb_vchar *vc = &vscn[row].col[col];
    973 	struct hpcfb_vchar *vcb;
    974 
    975 	if (vscn == 0)
    976 		return;
    977 
    978 	dc->dc_state |= HPCFB_DC_TDRAWING;
    979 #ifdef HPCFB_JUMP
    980 	if (row < dc->dc_min_row)
    981 		dc->dc_min_row = row;
    982 	if (row > dc->dc_max_row)
    983 		dc->dc_max_row = row;
    984 
    985 #endif /* HPCFB_JUMP */
    986 	if (vscn[row].maxcol +1 == col)
    987 		vscn[row].maxcol = col;
    988 	else if (vscn[row].maxcol < col) {
    989 		vcb =  &vscn[row].col[vscn[row].maxcol+1];
    990 		memset(vcb, 0,
    991 		    sizeof(struct hpcfb_vchar)*(col-vscn[row].maxcol-1));
    992 		vscn[row].maxcol = col;
    993 	}
    994 	vc->c = uc;
    995 	vc->attr = attr;
    996 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
    997 #ifdef HPCFB_JUMP
    998 	hpcfb_check_update(dc);
    999 #endif /* HPCFB_JUMP */
   1000 }
   1001 
   1002 void
   1003 hpcfb_putchar(void *cookie, int row, int col, u_int uc, long attr)
   1004 {
   1005 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1006 	struct hpcfb_softc *sc = dc->dc_sc;
   1007 	struct rasops_info *ri = &dc->dc_rinfo;
   1008 	int xoff;
   1009 	int yoff;
   1010 	int fclr, uclr;
   1011 	struct wsdisplay_font *font;
   1012 
   1013 	hpcfb_tv_putchar(dc, row, col, uc, attr);
   1014 #ifdef HPCFB_JUMP
   1015 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1016 		dc->dc_state |= HPCFB_DC_UPDATE;
   1017 		return;
   1018 	}
   1019 #endif /* HPCFB_JUMP */
   1020 
   1021 	if (!IS_DRAWABLE(dc)) {
   1022 		return;
   1023 	}
   1024 
   1025 	if (ri->ri_bits == NULL)
   1026 		return;
   1027 
   1028 	dc->dc_state |= HPCFB_DC_DRAWING;
   1029 	if (sc && sc->sc_accessops->putchar
   1030 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1031 		font = ri->ri_font;
   1032 		yoff = row * ri->ri_font->fontheight;
   1033 		xoff =  col * ri->ri_font->fontwidth;
   1034 		fclr = ri->ri_devcmap[((u_int)attr >> 24) & 15];
   1035 		uclr = ri->ri_devcmap[((u_int)attr >> 16) & 15];
   1036 
   1037 		(*sc->sc_accessops->putchar)(sc->sc_accessctx,
   1038 		    xoff, yoff, font, fclr, uclr, uc, attr);
   1039 	} else
   1040 		rasops_emul.putchar(ri, row, col, uc, attr);
   1041 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1042 #ifdef HPCFB_JUMP
   1043 	hpcfb_check_update(dc);
   1044 #endif /* HPCFB_JUMP */
   1045 }
   1046 
   1047 /*
   1048  * copycols
   1049  */
   1050 void
   1051 hpcfb_tv_copycols(struct hpcfb_devconfig *dc, int row, int srccol, int dstcol,
   1052     int ncols)
   1053 {
   1054 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1055 	struct hpcfb_vchar *svc = &vscn[row].col[srccol];
   1056 	struct hpcfb_vchar *dvc = &vscn[row].col[dstcol];
   1057 
   1058 	if (vscn == 0)
   1059 		return;
   1060 
   1061 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1062 #ifdef HPCFB_JUMP
   1063 	if (row < dc->dc_min_row)
   1064 		dc->dc_min_row = row;
   1065 	if (row > dc->dc_max_row)
   1066 		dc->dc_max_row = row;
   1067 #endif /* HPCFB_JUMP */
   1068 
   1069 	memcpy(dvc, svc, ncols*sizeof(struct hpcfb_vchar));
   1070 	if (vscn[row].maxcol < srccol+ncols-1)
   1071 		vscn[row].maxcol = srccol+ncols-1;
   1072 	if (vscn[row].maxcol < dstcol+ncols-1)
   1073 		vscn[row].maxcol = dstcol+ncols-1;
   1074 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1075 #ifdef HPCFB_JUMP
   1076 	hpcfb_check_update(dc);
   1077 #endif /* HPCFB_JUMP */
   1078 }
   1079 
   1080 void
   1081 hpcfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1082 {
   1083 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1084 	struct hpcfb_softc *sc = dc->dc_sc;
   1085 	struct rasops_info *ri = &dc->dc_rinfo;
   1086 	int srcxoff,dstxoff;
   1087 	int srcyoff,dstyoff;
   1088 	int height, width;
   1089 
   1090 	hpcfb_tv_copycols(dc, row, srccol, dstcol, ncols);
   1091 #ifdef HPCFB_JUMP
   1092 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1093 		dc->dc_state |= HPCFB_DC_UPDATE;
   1094 		return;
   1095 	}
   1096 #endif /* HPCFB_JUMP */
   1097 	if (!IS_DRAWABLE(dc)) {
   1098 		return;
   1099 	}
   1100 
   1101 	if (ri->ri_bits == NULL)
   1102 		return;
   1103 
   1104 	dc->dc_state |= HPCFB_DC_DRAWING;
   1105 	if (sc && sc->sc_accessops->bitblit
   1106 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1107 		srcxoff = srccol * ri->ri_font->fontwidth;
   1108 		srcyoff = row * ri->ri_font->fontheight;
   1109 		dstxoff = dstcol * ri->ri_font->fontwidth;
   1110 		dstyoff = row * ri->ri_font->fontheight;
   1111 		width = ncols * ri->ri_font->fontwidth;
   1112 		height = ri->ri_font->fontheight;
   1113 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1114 		    srcxoff, srcyoff, dstxoff, dstyoff, height, width);
   1115 	} else
   1116 		rasops_emul.copycols(ri, row, srccol, dstcol, ncols);
   1117 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1118 #ifdef HPCFB_JUMP
   1119 	hpcfb_check_update(dc);
   1120 #endif /* HPCFB_JUMP */
   1121 }
   1122 
   1123 
   1124 /*
   1125  * erasecols
   1126  */
   1127 void
   1128 hpcfb_tv_erasecols(struct hpcfb_devconfig *dc,
   1129 		   int row, int startcol, int ncols, long attr __unused)
   1130 {
   1131 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1132 
   1133 	if (vscn == 0)
   1134 		return;
   1135 
   1136 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1137 #ifdef HPCFB_JUMP
   1138 	if (row < dc->dc_min_row)
   1139 		dc->dc_min_row = row;
   1140 	if (row > dc->dc_max_row)
   1141 		dc->dc_max_row = row;
   1142 #endif /* HPCFB_JUMP */
   1143 
   1144 	vscn[row].maxcol = startcol-1;
   1145 	if (vscn[row].spacecol < startcol+ncols-1)
   1146 		vscn[row].spacecol = startcol+ncols-1;
   1147 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1148 #ifdef HPCFB_JUMP
   1149 	hpcfb_check_update(dc);
   1150 #endif /* HPCFB_JUMP */
   1151 }
   1152 
   1153 void
   1154 hpcfb_erasecols(void *cookie, int row, int startcol, int ncols, long attr)
   1155 {
   1156 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1157 	struct hpcfb_softc *sc = dc->dc_sc;
   1158 	struct rasops_info *ri = &dc->dc_rinfo;
   1159 	int xoff, yoff;
   1160 	int width, height;
   1161 
   1162 	hpcfb_tv_erasecols(dc, row, startcol, ncols, attr);
   1163 #ifdef HPCFB_JUMP
   1164 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1165 		dc->dc_state |= HPCFB_DC_UPDATE;
   1166 		return;
   1167 	}
   1168 #endif /* HPCFB_JUMP */
   1169 	if (!IS_DRAWABLE(dc)) {
   1170 		return;
   1171 	}
   1172 
   1173 	if (ri->ri_bits == NULL)
   1174 		return;
   1175 
   1176 	dc->dc_state |= HPCFB_DC_DRAWING;
   1177 	if (sc && sc->sc_accessops->erase
   1178 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1179 		xoff = startcol * ri->ri_font->fontwidth;
   1180 		yoff = row * ri->ri_font->fontheight;
   1181 		width = ncols * ri->ri_font->fontwidth;
   1182 		height = ri->ri_font->fontheight;
   1183 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1184 		    xoff, yoff, height, width, attr);
   1185 	} else
   1186 		rasops_emul.erasecols(ri, row, startcol, ncols, attr);
   1187 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1188 #ifdef HPCFB_JUMP
   1189 	hpcfb_check_update(dc);
   1190 #endif /* HPCFB_JUMP */
   1191 }
   1192 
   1193 /*
   1194  * Copy rows.
   1195  */
   1196 void
   1197 hpcfb_tv_copyrows(struct hpcfb_devconfig *dc, int src, int dst, int num)
   1198 {
   1199 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1200 	struct hpcfb_tvrow *svc = &vscn[src];
   1201 	struct hpcfb_tvrow *dvc = &vscn[dst];
   1202 	int i;
   1203 	int d;
   1204 
   1205 	if (vscn == 0)
   1206 		return;
   1207 
   1208 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1209 #ifdef HPCFB_JUMP
   1210 	if (dst < dc->dc_min_row)
   1211 		dc->dc_min_row = dst;
   1212 	if (dst + num > dc->dc_max_row)
   1213 		dc->dc_max_row = dst + num -1;
   1214 #endif /* HPCFB_JUMP */
   1215 
   1216 	if (svc > dvc)
   1217 		d = 1;
   1218 	else if (svc < dvc) {
   1219 		svc += num-1;
   1220 		dvc += num-1;
   1221 		d = -1;
   1222 	} else  {
   1223 		dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1224 #ifdef HPCFB_JUMP
   1225 		hpcfb_check_update(dc);
   1226 #endif /* HPCFB_JUMP */
   1227 		return;
   1228 	}
   1229 
   1230 	for (i = 0; i < num; i++) {
   1231 		memcpy(&dvc->col[0], &svc->col[0], sizeof(struct hpcfb_vchar)*(svc->maxcol+1));
   1232 		if (svc->maxcol < dvc->maxcol && dvc->spacecol < dvc->maxcol)
   1233 			dvc->spacecol = dvc->maxcol;
   1234 		dvc->maxcol = svc->maxcol;
   1235 		svc+=d;
   1236 		dvc+=d;
   1237 	}
   1238 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1239 #ifdef HPCFB_JUMP
   1240 	hpcfb_check_update(dc);
   1241 #endif /* HPCFB_JUMP */
   1242 }
   1243 
   1244 void
   1245 hpcfb_redraw(cookie, row, num, all)
   1246 	void *cookie;
   1247 	int row, num;
   1248 	int all;
   1249 {
   1250 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1251 	struct rasops_info *ri = &dc->dc_rinfo;
   1252 	int cols;
   1253 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1254 	struct hpcfb_vchar *svc;
   1255 	int i, j;
   1256 
   1257 #ifdef HPCFB_JUMP
   1258 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1259 		dc->dc_state |= HPCFB_DC_UPDATE;
   1260 		return;
   1261 	}
   1262 #endif /* HPCFB_JUMP */
   1263 	if (dc->dc_sc != NULL
   1264 	    && !dc->dc_sc->sc_polling
   1265 	    && dc->dc_sc->sc_mapping)
   1266 		return;
   1267 
   1268 	dc->dc_state &= ~HPCFB_DC_ABORT;
   1269 
   1270 	if (vscn == 0)
   1271 		return;
   1272 
   1273 	if (!IS_DRAWABLE(dc)) {
   1274 		return;
   1275 	}
   1276 
   1277 	if (ri->ri_bits == NULL)
   1278 		return;
   1279 
   1280 	dc->dc_state |= HPCFB_DC_DRAWING;
   1281 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1282 	for (i = 0; i < num; i++) {
   1283 		if (dc->dc_state&HPCFB_DC_ABORT)
   1284 			break;
   1285 		if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1286 			break;
   1287 		cols = vscn[row+i].maxcol;
   1288 		for (j = 0; j <= cols; j++) {
   1289 			if (dc->dc_state&HPCFB_DC_ABORT)
   1290 				continue;
   1291 			if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1292 				continue;
   1293 			svc = &vscn[row+i].col[j];
   1294 			rasops_emul.putchar(ri, row + i, j, svc->c, svc->attr);
   1295 		}
   1296 		if (all)
   1297 			cols = dc->dc_cols-1;
   1298 		else
   1299 			cols = vscn[row+i].spacecol;
   1300 		for (; j <= cols; j++) {
   1301 			if (dc->dc_state&HPCFB_DC_ABORT)
   1302 				continue;
   1303 			if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1304 				continue;
   1305 			rasops_emul.putchar(ri, row + i, j, ' ', 0);
   1306 		}
   1307 		vscn[row+i].spacecol = 0;
   1308 	}
   1309 	if (dc->dc_state&HPCFB_DC_ABORT)
   1310 		dc->dc_state &= ~HPCFB_DC_ABORT;
   1311 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1312 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1313 #ifdef HPCFB_JUMP
   1314 	hpcfb_check_update(dc);
   1315 #endif /* HPCFB_JUMP */
   1316 }
   1317 
   1318 #ifdef HPCFB_JUMP
   1319 void
   1320 hpcfb_update(void *v)
   1321 {
   1322 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1323 
   1324 	/* callout_stop(&dc->dc_scroll_ch); */
   1325 	dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1326 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1327 		hpcfb_cursor_raw(dc, 0,  dc->dc_cury, dc->dc_curx);
   1328 	if ((dc->dc_state&HPCFB_DC_UPDATEALL)) {
   1329 		hpcfb_redraw(dc, 0, dc->dc_rows, 1);
   1330 		dc->dc_state &= ~(HPCFB_DC_UPDATE|HPCFB_DC_UPDATEALL);
   1331 	} else if ((dc->dc_state&HPCFB_DC_UPDATE)) {
   1332 		hpcfb_redraw(dc, dc->dc_min_row,
   1333 		    dc->dc_max_row - dc->dc_min_row, 0);
   1334 		dc->dc_state &= ~HPCFB_DC_UPDATE;
   1335 	} else {
   1336 		hpcfb_redraw(dc, dc->dc_scroll_dst, dc->dc_scroll_num, 0);
   1337 	}
   1338 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1339 		hpcfb_cursor_raw(dc, 1,  dc->dc_cury, dc->dc_curx);
   1340 }
   1341 
   1342 void
   1343 hpcfb_do_scroll(void *v)
   1344 {
   1345 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1346 
   1347 	dc->dc_state |= HPCFB_DC_SCRTHREAD;
   1348 	if (dc->dc_state&(HPCFB_DC_DRAWING|HPCFB_DC_TDRAWING))
   1349 		dc->dc_state |= HPCFB_DC_SCRDELAY;
   1350 	else if (dc->dc_sc != NULL && dc->dc_sc->sc_thread)
   1351 		wakeup(dc->dc_sc);
   1352 	else if (dc->dc_sc != NULL && !dc->dc_sc->sc_mapping) {
   1353 		/* draw only EMUL mode */
   1354 		hpcfb_update(v);
   1355 	}
   1356 	dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
   1357 }
   1358 
   1359 void
   1360 hpcfb_check_update(void *v)
   1361 {
   1362 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1363 
   1364 	if (dc->dc_sc != NULL
   1365 	    && dc->dc_sc->sc_polling
   1366 	    && (dc->dc_state&HPCFB_DC_SCROLLPENDING)){
   1367 		callout_stop(&dc->dc_scroll_ch);
   1368 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1369 		hpcfb_update(v);
   1370 	}
   1371 	else if (dc->dc_state&HPCFB_DC_SCRDELAY){
   1372 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1373 		hpcfb_update(v);
   1374 	} else if (dc->dc_state&HPCFB_DC_UPDATEALL){
   1375 		dc->dc_state &= ~HPCFB_DC_UPDATEALL;
   1376 		hpcfb_update(v);
   1377 	}
   1378 }
   1379 #endif /* HPCFB_JUMP */
   1380 
   1381 void
   1382 hpcfb_copyrows(void *cookie, int src, int dst, int num)
   1383 {
   1384 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1385 	struct rasops_info *ri = &dc->dc_rinfo;
   1386 	struct hpcfb_softc *sc = dc->dc_sc;
   1387 	int srcyoff, dstyoff;
   1388 	int width, height;
   1389 
   1390 	hpcfb_tv_copyrows(cookie, src, dst, num);
   1391 
   1392 	if (!IS_DRAWABLE(dc)) {
   1393 		return;
   1394 	}
   1395 
   1396 	if (ri->ri_bits == NULL)
   1397 		return;
   1398 
   1399 	if (sc && sc->sc_accessops->bitblit
   1400 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1401 		dc->dc_state |= HPCFB_DC_DRAWING;
   1402 		srcyoff = src * ri->ri_font->fontheight;
   1403 		dstyoff = dst * ri->ri_font->fontheight;
   1404 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1405 		height = num * ri->ri_font->fontheight;
   1406 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1407 		    0, srcyoff, 0, dstyoff, height, width);
   1408 		dc->dc_state &= ~HPCFB_DC_DRAWING;
   1409 	}
   1410 	else {
   1411 #ifdef HPCFB_JUMP
   1412 		if (sc && sc->sc_polling) {
   1413 			hpcfb_check_update(dc);
   1414 		} else if ((dc->dc_state&HPCFB_DC_SCROLLPENDING) == 0) {
   1415 			dc->dc_state |= HPCFB_DC_SCROLLPENDING;
   1416 			dc->dc_scroll = 1;
   1417 			dc->dc_scroll_src = src;
   1418 			dc->dc_scroll_dst = dst;
   1419 			dc->dc_scroll_num = num;
   1420 			callout_reset(&dc->dc_scroll_ch, hz/100, &hpcfb_do_scroll, dc);
   1421 			return;
   1422 		} else if (dc->dc_scroll++ < dc->dc_rows/HPCFB_MAX_JUMP) {
   1423 			dc->dc_state |= HPCFB_DC_UPDATE;
   1424 			return;
   1425 		} else {
   1426 			dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1427 			callout_stop(&dc->dc_scroll_ch);
   1428 		}
   1429 		if (dc->dc_state&HPCFB_DC_UPDATE) {
   1430 			dc->dc_state &= ~HPCFB_DC_UPDATE;
   1431 			hpcfb_redraw(cookie, dc->dc_min_row,
   1432 			    dc->dc_max_row - dc->dc_min_row, 0);
   1433 			dc->dc_max_row = 0;
   1434 			dc->dc_min_row = dc->dc_rows;
   1435 			if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1436 				hpcfb_cursor(dc, 1,  dc->dc_cury, dc->dc_curx);
   1437 			return;
   1438 		}
   1439 #endif /* HPCFB_JUMP */
   1440 		hpcfb_redraw(cookie, dst, num, 0);
   1441 	}
   1442 #ifdef HPCFB_JUMP
   1443 	hpcfb_check_update(dc);
   1444 #endif /* HPCFB_JUMP */
   1445 }
   1446 
   1447 /*
   1448  * eraserows
   1449  */
   1450 void
   1451 hpcfb_tv_eraserows(struct hpcfb_devconfig *dc,
   1452 		   int row, int nrow, long attr __unused)
   1453 {
   1454 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1455 	int cols;
   1456 	int i;
   1457 
   1458 	if (vscn == 0)
   1459 		return;
   1460 
   1461 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1462 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1463 #ifdef HPCFB_JUMP
   1464 	if (row < dc->dc_min_row)
   1465 		dc->dc_min_row = row;
   1466 	if (row + nrow > dc->dc_max_row)
   1467 		dc->dc_max_row = row + nrow;
   1468 #endif /* HPCFB_JUMP */
   1469 
   1470 	for (i = 0; i < nrow; i++) {
   1471 		cols = vscn[row+i].maxcol;
   1472 		if (vscn[row+i].spacecol < cols)
   1473 			vscn[row+i].spacecol = cols;
   1474 		vscn[row+i].maxcol = -1;
   1475 	}
   1476 #ifdef HPCFB_JUMP
   1477 	hpcfb_check_update(dc);
   1478 #endif /* HPCFB_JUMP */
   1479 }
   1480 
   1481 void
   1482 hpcfb_eraserows(void *cookie, int row, int nrow, long attr)
   1483 {
   1484 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1485 	struct hpcfb_softc *sc = dc->dc_sc;
   1486 	struct rasops_info *ri = &dc->dc_rinfo;
   1487 	int yoff;
   1488 	int width;
   1489 	int height;
   1490 
   1491 	hpcfb_tv_eraserows(dc, row, nrow, attr);
   1492 #ifdef HPCFB_JUMP
   1493 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1494 		dc->dc_state |= HPCFB_DC_UPDATE;
   1495 		return;
   1496 	}
   1497 #endif /* HPCFB_JUMP */
   1498 	if (!IS_DRAWABLE(dc)) {
   1499 		return;
   1500 	}
   1501 
   1502 	if (ri->ri_bits == NULL)
   1503 		return;
   1504 
   1505 	dc->dc_state |= HPCFB_DC_DRAWING;
   1506 	if (sc && sc->sc_accessops->erase
   1507 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1508 		yoff = row * ri->ri_font->fontheight;
   1509 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1510 		height = nrow * ri->ri_font->fontheight;
   1511 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1512 		    0, yoff, height, width, attr);
   1513 	} else
   1514 		rasops_emul.eraserows(ri, row, nrow, attr);
   1515 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1516 #ifdef HPCFB_JUMP
   1517 	hpcfb_check_update(dc);
   1518 #endif /* HPCFB_JUMP */
   1519 }
   1520 
   1521 /*
   1522  * allocattr
   1523  */
   1524 int
   1525 hpcfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
   1526 {
   1527 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1528 	struct rasops_info *ri = &dc->dc_rinfo;
   1529 
   1530 	return (rasops_emul.allocattr(ri, fg, bg, flags, attrp));
   1531 }
   1532