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sti.c revision 1.8
      1 /* $NetBSD: sti.c,v 1.8 2007/10/19 12:00:02 ad Exp $ */
      2 
      3 /*	$OpenBSD: sti.c,v 1.35 2003/12/16 06:07:13 mickey Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 2000-2003 Michael Shalayeff
      7  * 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  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
     22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     24  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     28  * THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 /*
     31  * TODO:
     32  *	call sti procs asynchronously;
     33  *	implement console scroll-back;
     34  *	X11 support.
     35  */
     36 
     37 #include <sys/cdefs.h>
     38 __KERNEL_RCSID(0, "$NetBSD: sti.c,v 1.8 2007/10/19 12:00:02 ad Exp $");
     39 
     40 #include "wsdisplay.h"
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/device.h>
     45 #include <sys/malloc.h>
     46 
     47 #include <uvm/uvm.h>
     48 
     49 #include <sys/bus.h>
     50 
     51 #include <dev/wscons/wsdisplayvar.h>
     52 #include <dev/wscons/wsconsio.h>
     53 
     54 #include <dev/ic/stireg.h>
     55 #include <dev/ic/stivar.h>
     56 
     57 void sti_cursor(void *, int, int, int);
     58 int  sti_mapchar(void *, int, u_int *);
     59 void sti_putchar(void *, int, int, u_int, long);
     60 void sti_copycols(void *, int, int, int, int);
     61 void sti_erasecols(void *, int, int, int, long);
     62 void sti_copyrows(void *, int, int, int);
     63 void sti_eraserows(void *, int, int, long);
     64 int  sti_alloc_attr(void *, int, int, int, long *);
     65 
     66 struct wsdisplay_emulops sti_emulops = {
     67 	sti_cursor,
     68 	sti_mapchar,
     69 	sti_putchar,
     70 	sti_copycols,
     71 	sti_erasecols,
     72 	sti_copyrows,
     73 	sti_eraserows,
     74 	sti_alloc_attr
     75 };
     76 
     77 int sti_ioctl(void *, void *, u_long, void *, int, struct lwp *);
     78 paddr_t sti_mmap(void *, void *, off_t, int);
     79 int sti_alloc_screen(void *, const struct wsscreen_descr *,
     80 	void **, int *, int *, long *);
     81 	void sti_free_screen(void *, void *);
     82 int sti_show_screen(void *, void *, int, void (*cb)(void *, int, int), void *);
     83 int sti_load_font(void *, void *, struct wsdisplay_font *);
     84 
     85 const struct wsdisplay_accessops sti_accessops = {
     86 	sti_ioctl,
     87 	sti_mmap,
     88 	sti_alloc_screen,
     89 	sti_free_screen,
     90 	sti_show_screen,
     91 	sti_load_font
     92 };
     93 
     94 struct wsscreen_descr sti_default_screen = {
     95 	"default", 0, 0,
     96 	&sti_emulops,
     97 	0, 0,
     98 	WSSCREEN_REVERSE | WSSCREEN_UNDERLINE
     99 };
    100 
    101 const struct wsscreen_descr *sti_default_scrlist[] = {
    102 	&sti_default_screen
    103 };
    104 
    105 struct wsscreen_list sti_default_screenlist = {
    106 	sizeof(sti_default_scrlist) / sizeof(sti_default_scrlist[0]),
    107 	sti_default_scrlist
    108 };
    109 
    110 enum sti_bmove_funcs {
    111 	bmf_clear, bmf_copy, bmf_invert, bmf_underline
    112 };
    113 
    114 int sti_init(struct sti_softc *, int);
    115 int sti_inqcfg(struct sti_softc *, struct sti_inqconfout *);
    116 void sti_bmove(struct sti_softc *, int, int, int, int, int, int,
    117     enum sti_bmove_funcs);
    118 int sti_setcment(struct sti_softc *, u_int, u_char, u_char, u_char);
    119 int sti_fetchfonts(struct sti_softc *, struct sti_inqconfout *, u_int32_t);
    120 void sti_attach_deferred(struct device *);
    121 
    122 void
    123 sti_attach_common(struct sti_softc *sc)
    124 {
    125 	struct sti_inqconfout cfg;
    126 	struct sti_einqconfout ecfg;
    127 	bus_space_handle_t fbh;
    128 	struct sti_dd *dd;
    129 	struct sti_cfg *cc;
    130 	int error, size, i;
    131 	u_int8_t *p = (u_int8_t *)sc->sc_code;
    132 	u_int32_t addr, eaddr;
    133 	struct sti_region r;
    134 	u_int32_t *q;
    135 	uint32_t tmp;
    136 
    137 	dd = &sc->sc_dd;
    138 	if (sc->sc_devtype == STI_DEVTYPE1) {
    139 #define	parseshort(o) \
    140 	((bus_space_read_1(sc->memt, sc->romh, (o) + 3) <<  8) | \
    141 	 (bus_space_read_1(sc->memt, sc->romh, (o) + 7)))
    142 #define	parseword(o) \
    143 	((bus_space_read_1(sc->memt, sc->romh, (o) +  3) << 24) | \
    144 	 (bus_space_read_1(sc->memt, sc->romh, (o) +  7) << 16) | \
    145 	 (bus_space_read_1(sc->memt, sc->romh, (o) + 11) <<  8) | \
    146 	 (bus_space_read_1(sc->memt, sc->romh, (o) + 15)))
    147 
    148 		dd->dd_type  = bus_space_read_1(sc->memt, sc->romh, 0x03);
    149 		dd->dd_nmon  = bus_space_read_1(sc->memt, sc->romh, 0x07);
    150 		dd->dd_grrev = bus_space_read_1(sc->memt, sc->romh, 0x0b);
    151 		dd->dd_lrrev = bus_space_read_1(sc->memt, sc->romh, 0x0f);
    152 		dd->dd_grid[0] = parseword(0x10);
    153 		dd->dd_grid[1] = parseword(0x20);
    154 		dd->dd_fntaddr = parseword(0x30) & ~3;
    155 		dd->dd_maxst   = parseword(0x40);
    156 		dd->dd_romend  = parseword(0x50) & ~3;
    157 		dd->dd_reglst  = parseword(0x60) & ~3;
    158 		dd->dd_maxreent= parseshort(0x70);
    159 		dd->dd_maxtimo = parseshort(0x78);
    160 		dd->dd_montbl  = parseword(0x80) & ~3;
    161 		dd->dd_udaddr  = parseword(0x90) & ~3;
    162 		dd->dd_stimemreq=parseword(0xa0);
    163 		dd->dd_udsize  = parseword(0xb0);
    164 		dd->dd_pwruse  = parseshort(0xc0);
    165 		dd->dd_bussup  = bus_space_read_1(sc->memt, sc->romh, 0xcb);
    166 		dd->dd_ebussup = bus_space_read_1(sc->memt, sc->romh, 0xcf);
    167 		dd->dd_altcodet= bus_space_read_1(sc->memt, sc->romh, 0xd3);
    168 		dd->dd_eddst[0]= bus_space_read_1(sc->memt, sc->romh, 0xd7);
    169 		dd->dd_eddst[1]= bus_space_read_1(sc->memt, sc->romh, 0xdb);
    170 		dd->dd_eddst[2]= bus_space_read_1(sc->memt, sc->romh, 0xdf);
    171 		dd->dd_cfbaddr = parseword(0xe0) & ~3;
    172 
    173 		dd->dd_pacode[0x0] = parseword(0x100) & ~3;
    174 		dd->dd_pacode[0x1] = parseword(0x110) & ~3;
    175 		dd->dd_pacode[0x2] = parseword(0x120) & ~3;
    176 		dd->dd_pacode[0x3] = parseword(0x130) & ~3;
    177 		dd->dd_pacode[0x4] = parseword(0x140) & ~3;
    178 		dd->dd_pacode[0x5] = parseword(0x150) & ~3;
    179 		dd->dd_pacode[0x6] = parseword(0x160) & ~3;
    180 		dd->dd_pacode[0x7] = parseword(0x170) & ~3;
    181 		dd->dd_pacode[0x8] = parseword(0x180) & ~3;
    182 		dd->dd_pacode[0x9] = parseword(0x190) & ~3;
    183 		dd->dd_pacode[0xa] = parseword(0x1a0) & ~3;
    184 		dd->dd_pacode[0xb] = parseword(0x1b0) & ~3;
    185 		dd->dd_pacode[0xc] = parseword(0x1c0) & ~3;
    186 		dd->dd_pacode[0xd] = parseword(0x1d0) & ~3;
    187 		dd->dd_pacode[0xe] = parseword(0x1e0) & ~3;
    188 		dd->dd_pacode[0xf] = parseword(0x1f0) & ~3;
    189 	} else	/* STI_DEVTYPE4 */
    190 		bus_space_read_region_4(sc->memt, sc->romh, 0, (u_int32_t *)dd,
    191 		    sizeof(*dd) / 4);
    192 
    193 #ifdef STIDEBUG
    194 	printf("dd:\n"
    195 	    "devtype=%x, rev=%x;%d, altt=%x, gid=%016llx, font=%x, mss=%x\n"
    196 	    "end=%x, regions=%x, msto=%x, timo=%d, mont=%x, user=%x[%x]\n"
    197 	    "memrq=%x, pwr=%d, bus=%x, ebus=%x, cfb=%x\n"
    198 	    "code=",
    199 	    dd->dd_type & 0xff, dd->dd_grrev, dd->dd_lrrev, dd->dd_altcodet,
    200 	    *(u_int64_t *)dd->dd_grid, dd->dd_fntaddr, dd->dd_maxst,
    201 	    dd->dd_romend, dd->dd_reglst, dd->dd_maxreent, dd->dd_maxtimo,
    202 	    dd->dd_montbl, dd->dd_udaddr, dd->dd_udsize, dd->dd_stimemreq,
    203 	    dd->dd_pwruse, dd->dd_bussup, dd->dd_ebussup, dd->dd_cfbaddr);
    204 	printf("%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\n",
    205 	    dd->dd_pacode[0x0], dd->dd_pacode[0x1], dd->dd_pacode[0x2],
    206 	    dd->dd_pacode[0x3], dd->dd_pacode[0x4], dd->dd_pacode[0x5],
    207 	    dd->dd_pacode[0x6], dd->dd_pacode[0x7], dd->dd_pacode[0x8],
    208 	    dd->dd_pacode[0x9], dd->dd_pacode[0xa], dd->dd_pacode[0xb],
    209 	    dd->dd_pacode[0xc], dd->dd_pacode[0xd], dd->dd_pacode[0xe],
    210 	    dd->dd_pacode[0xf]);
    211 #endif
    212 	/* divise code size, could be less than STI_END entries */
    213 	for (i = STI_END; !dd->dd_pacode[i]; i--);
    214 	size = dd->dd_pacode[i] - dd->dd_pacode[STI_BEGIN];
    215 	if (sc->sc_devtype == STI_DEVTYPE1)
    216 		size = (size + 3) / 4;
    217 	if (!(sc->sc_code = uvm_km_alloc(kernel_map, round_page(size), 0,
    218 	    UVM_KMF_WIRED))) {
    219 		printf(": cannot allocate %u bytes for code\n", size);
    220 		return;
    221 	}
    222 #ifdef STIDEBUG
    223 	printf("code=0x%x[%x]\n", (uint)sc->sc_code, size);
    224 #endif
    225 
    226 	/* copy code into memory */
    227 	if (sc->sc_devtype == STI_DEVTYPE1) {
    228 		p = (u_int8_t *)sc->sc_code;
    229 		for (addr = dd->dd_pacode[STI_BEGIN], eaddr = addr + size * 4;
    230 		    addr < eaddr; addr += 4 )
    231 			*p++ = bus_space_read_4(sc->memt, sc->romh, addr)
    232 			    & 0xff;
    233 
    234 	} else	/* STI_DEVTYPE4 */
    235 		bus_space_read_region_4(sc->memt, sc->romh,
    236 		    dd->dd_pacode[STI_BEGIN], (u_int32_t *)sc->sc_code,
    237 		    size / 4);
    238 
    239 #define	O(i)	(dd->dd_pacode[(i)] ? (sc->sc_code +	\
    240 	(dd->dd_pacode[(i)] - dd->dd_pacode[0]) /	\
    241 	(sc->sc_devtype == STI_DEVTYPE1 ? 4 : 1)) : 0)
    242 	sc->init	= (sti_init_t)	O(STI_INIT_GRAPH);
    243 	sc->mgmt	= (sti_mgmt_t)	O(STI_STATE_MGMT);
    244 	sc->unpmv	= (sti_unpmv_t)	O(STI_FONT_UNPMV);
    245 	sc->blkmv	= (sti_blkmv_t)	O(STI_BLOCK_MOVE);
    246 	sc->test	= (sti_test_t)	O(STI_SELF_TEST);
    247 	sc->exhdl	= (sti_exhdl_t)	O(STI_EXCEP_HDLR);
    248 	sc->inqconf	= (sti_inqconf_t)O(STI_INQ_CONF);
    249 	sc->scment	= (sti_scment_t)O(STI_SCM_ENT);
    250 	sc->dmac	= (sti_dmac_t)	O(STI_DMA_CTRL);
    251 	sc->flowc	= (sti_flowc_t)	O(STI_FLOW_CTRL);
    252 	sc->utiming	= (sti_utiming_t)O(STI_UTIMING);
    253 	sc->pmgr	= (sti_pmgr_t)	O(STI_PROC_MGR);
    254 	sc->util	= (sti_util_t)	O(STI_UTIL);
    255 
    256 	if ((error = uvm_map_protect(kernel_map, sc->sc_code,
    257 	    sc->sc_code + round_page(size), UVM_PROT_RX, FALSE))) {
    258 		printf(": uvm_map_protect failed (%d)\n", error);
    259 		uvm_km_free(kernel_map, sc->sc_code, round_page(size),
    260 		    UVM_KMF_WIRED);
    261 		return;
    262 	}
    263 
    264 	cc = &sc->sc_cfg;
    265 	memset(cc, 0, sizeof (*cc));
    266 	i = dd->dd_reglst;
    267 #ifdef STIDEBUG
    268 	printf("stiregions @%d:\n", i);
    269 #endif
    270 	r.last = 0;
    271 	for (q = cc->regions; !r.last &&
    272 	     q < &cc->regions[STI_REGION_MAX]; q++) {
    273 
    274 		if (sc->sc_devtype == STI_DEVTYPE1)
    275 			tmp = parseword(i), i += 16;
    276 		else
    277 			tmp = bus_space_read_4(sc->memt, sc->romh, i), i += 4;
    278 		memcpy(&r, &tmp, sizeof (r));
    279 
    280 		*q = (q == cc->regions ? sc->romh : sc->base) +
    281 		    (r.offset << PGSHIFT);
    282 #ifdef STIDEBUG
    283 		printf("%x @ 0x%x%s%s%s%s\n",
    284 		    r.length << PGSHIFT, *q, r.sys_only ? " sys" : "",
    285 		    r.cache ? " cache" : "", r.btlb ? " btlb" : "",
    286 		    r.last ? " last" : "");
    287 #endif
    288 
    289 		/* rom has already been mapped */
    290 		if (q != cc->regions) {
    291 			if (bus_space_map(sc->memt, *q,
    292 			    r.length << PGSHIFT, 0, &fbh)) {
    293 #ifdef STIDEBUG
    294 				printf("already mapped region\n");
    295 #endif
    296 			} else {
    297 				if (q - cc->regions == 1) {
    298 					sc->fbaddr = *q;
    299 					sc->fblen = r.length << PGSHIFT;
    300 				}
    301 				*q = fbh;
    302 			}
    303 		}
    304 	}
    305 
    306 	if ((error = sti_init(sc, 0))) {
    307 		printf(": can not initialize (%d)\n", error);
    308 		return;
    309 	}
    310 
    311 	memset(&cfg, 0, sizeof(cfg));
    312 	memset(&ecfg, 0, sizeof(ecfg));
    313 	cfg.ext = &ecfg;
    314 	if ((error = sti_inqcfg(sc, &cfg))) {
    315 		printf(": error %d inquiring config\n", error);
    316 		return;
    317 	}
    318 
    319 	if ((error = sti_init(sc, STI_TEXTMODE))) {
    320 		printf(": can not initialize (%d)\n", error);
    321 		return;
    322 	}
    323 
    324 #ifdef STIDEBUG
    325 	printf("conf: bpp=%d planes=%d attr=%d\n"
    326 	    "crt=0x%x:0x%x:0x%x hw=0x%x:0x%x:0x%x\n",
    327 	    cfg.bpp, cfg.planes, cfg.attributes,
    328 	    ecfg.crt_config[0], ecfg.crt_config[1], ecfg.crt_config[2],
    329 	    ecfg.crt_hw[0], ecfg.crt_hw[1], ecfg.crt_hw[2]);
    330 #endif
    331 	sc->sc_wsmode = WSDISPLAYIO_MODE_EMUL;
    332 	sc->sc_bpp = cfg.bppu;
    333 	printf(": %s rev %d.%02d;%d, ID 0x%016llX\n"
    334 	    "%s: %dx%d frame buffer, %dx%dx%d display, offset %dx%d\n",
    335 	    cfg.name, dd->dd_grrev >> 4, dd->dd_grrev & 0xf, dd->dd_lrrev,
    336 	    *(u_int64_t *)dd->dd_grid, sc->sc_dev.dv_xname, cfg.fbwidth,
    337 	    cfg.fbheight, cfg.width, cfg.height, cfg.bppu, cfg.owidth,
    338 	    cfg.oheight);
    339 
    340 	if ((error = sti_fetchfonts(sc, &cfg, dd->dd_fntaddr))) {
    341 		printf("%s: cannot fetch fonts (%d)\n", sc->sc_dev.dv_xname,
    342 		    error);
    343 		return;
    344 	}
    345 
    346 	/*
    347 	 * parse screen descriptions:
    348 	 *	figure number of fonts supported;
    349 	 *	allocate wscons structures;
    350 	 *	calculate dimensions.
    351 	 */
    352 
    353 	sti_default_screen.ncols = cfg.width / sc->sc_curfont.width;
    354 	sti_default_screen.nrows = cfg.height / sc->sc_curfont.height;
    355 	sti_default_screen.fontwidth = sc->sc_curfont.width;
    356 	sti_default_screen.fontheight = sc->sc_curfont.height;
    357 
    358 #if NWSDISPLAY > 0
    359 	config_interrupts(&sc->sc_dev, sti_attach_deferred);
    360 #endif
    361 
    362 }
    363 
    364 void
    365 sti_attach_deferred(struct device *dev)
    366 {
    367 	struct sti_softc *sc = (struct sti_softc *) dev;
    368 	struct wsemuldisplaydev_attach_args waa;
    369 	long defattr;
    370 
    371 	waa.console = sc->sc_flags & STI_CONSOLE ? 1 : 0;
    372 	waa.scrdata = &sti_default_screenlist;
    373 	waa.accessops = &sti_accessops;
    374 	waa.accesscookie = sc;
    375 
    376 	/* attach as console if required */
    377 	if (waa.console) {
    378 		sti_alloc_attr(sc, 0, 0, 0, &defattr);
    379 		wsdisplay_cnattach(&sti_default_screen, sc,
    380 		    0, sti_default_screen.nrows - 1, defattr);
    381 	}
    382 
    383 	config_found(&sc->sc_dev, &waa, wsemuldisplaydevprint);
    384 }
    385 
    386 int
    387 sti_fetchfonts(struct sti_softc *sc, struct sti_inqconfout *cfg, u_int32_t addr)
    388 {
    389 	struct sti_font *fp = &sc->sc_curfont;
    390 	int size;
    391 #ifdef notyet
    392 	int uc;
    393 	struct {
    394 		struct sti_unpmvflags flags;
    395 		struct sti_unpmvin in;
    396 		struct sti_unpmvout out;
    397 	} a;
    398 #endif
    399 
    400 	/*
    401 	 * Get the first PROM font in memory
    402 	 */
    403 	do {
    404 		if (sc->sc_devtype == STI_DEVTYPE1) {
    405 			fp->first  = parseshort(addr + 0x00);
    406 			fp->last   = parseshort(addr + 0x08);
    407 			fp->width  = bus_space_read_1(sc->memt, sc->romh,
    408 			    addr + 0x13);
    409 			fp->height = bus_space_read_1(sc->memt, sc->romh,
    410 			    addr + 0x17);
    411 			fp->type   = bus_space_read_1(sc->memt, sc->romh,
    412 			    addr + 0x1b);
    413 			fp->bpc    = bus_space_read_1(sc->memt, sc->romh,
    414 			    addr + 0x1f);
    415 			fp->next   = parseword(addr + 0x23);
    416 			fp->uheight= bus_space_read_1(sc->memt, sc->romh,
    417 			    addr + 0x33);
    418 			fp->uoffset= bus_space_read_1(sc->memt, sc->romh,
    419 			    addr + 0x37);
    420 		} else	/* STI_DEVTYPE4 */
    421 			bus_space_read_region_4(sc->memt, sc->romh, addr,
    422 			    (u_int32_t *)fp, sizeof(struct sti_font) / 4);
    423 
    424 		printf("%s: %dx%d font type %d, %d bpc, charset %d-%d\n",
    425 		    sc->sc_dev.dv_xname, fp->width, fp->height, fp->type,
    426 		    fp->bpc, fp->first, fp->last);
    427 
    428 		size = sizeof(struct sti_font) +
    429 		    (fp->last - fp->first + 1) * fp->bpc;
    430 		if (sc->sc_devtype == STI_DEVTYPE1)
    431 			size *= 4;
    432 		sc->sc_romfont = malloc(size, M_DEVBUF, M_NOWAIT);
    433 		if (sc->sc_romfont == NULL)
    434 			return (ENOMEM);
    435 
    436 		bus_space_read_region_4(sc->memt, sc->romh, addr,
    437 		    (u_int32_t *)sc->sc_romfont, size / 4);
    438 
    439 		addr = 0; /* fp->next */
    440 	} while (addr);
    441 
    442 #ifdef notyet
    443 	/*
    444 	 * If there is enough room in the off-screen framebuffer memory,
    445 	 * display all the characters there in order to display them
    446 	 * faster with blkmv operations rather than unpmv later on.
    447 	 */
    448 	if (size <= cfg->fbheight *
    449 	    (cfg->fbwidth - cfg->width - cfg->owidth)) {
    450 		memset(&a, 0, sizeof(a));
    451 		a.flags.flags = STI_UNPMVF_WAIT;
    452 		a.in.fg_colour = STI_COLOUR_WHITE;
    453 		a.in.bg_colour = STI_COLOUR_BLACK;
    454 		a.in.font_addr = sc->sc_romfont;
    455 
    456 		sc->sc_fontmaxcol = cfg->fbheight / fp->height;
    457 		sc->sc_fontbase = cfg->width + cfg->owidth;
    458 		for (uc = fp->first; uc <= fp->last; uc++) {
    459 			a.in.x = ((uc - fp->first) / sc->sc_fontmaxcol) *
    460 			    fp->width + sc->sc_fontbase;
    461 			a.in.y = ((uc - fp->first) % sc->sc_fontmaxcol) *
    462 			    fp->height;
    463 			a.in.index = uc;
    464 
    465 			(*sc->unpmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
    466 			if (a.out.errno) {
    467 				printf("%s: unpmv %d returned %d\n",
    468 				    sc->sc_dev.dv_xname, uc, a.out.errno);
    469 				return (0);
    470 			}
    471 		}
    472 
    473 		free(sc->sc_romfont, M_DEVBUF);
    474 		sc->sc_romfont = NULL;
    475 	}
    476 #endif
    477 
    478 	return (0);
    479 }
    480 
    481 int
    482 sti_init(struct sti_softc *sc, int mode)
    483 {
    484 	struct {
    485 		struct sti_initflags flags;
    486 		struct sti_initin in;
    487 		struct sti_initout out;
    488 	} a;
    489 
    490 	memset(&a, 0, sizeof(a));
    491 
    492 	a.flags.flags = STI_INITF_WAIT | STI_INITF_CMB | STI_INITF_EBET |
    493 	    (mode & STI_TEXTMODE ? STI_INITF_TEXT | STI_INITF_PBET |
    494 	     STI_INITF_PBETI | STI_INITF_ICMT : 0);
    495 	a.in.text_planes = 1;
    496 #ifdef STIDEBUG
    497 	printf("%s: init,%p(%x, %p, %p, %p)\n", sc->sc_dev.dv_xname,
    498 	    sc->init, a.flags.flags, &a.in, &a.out, &sc->sc_cfg);
    499 #endif
    500 	(*sc->init)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
    501 	return (a.out.text_planes != a.in.text_planes || a.out.errno);
    502 }
    503 
    504 int
    505 sti_inqcfg(struct sti_softc *sc, struct sti_inqconfout *out)
    506 {
    507 	struct {
    508 		struct sti_inqconfflags flags;
    509 		struct sti_inqconfin in;
    510 	} a;
    511 
    512 	memset(&a, 0, sizeof(a));
    513 
    514 	a.flags.flags = STI_INQCONFF_WAIT;
    515 	(*sc->inqconf)(&a.flags, &a.in, out, &sc->sc_cfg);
    516 
    517 	return out->errno;
    518 }
    519 
    520 void
    521 sti_bmove(struct sti_softc *sc, int x1, int y1, int x2, int y2, int h, int w,
    522     enum sti_bmove_funcs f)
    523 {
    524 	struct {
    525 		struct sti_blkmvflags flags;
    526 		struct sti_blkmvin in;
    527 		struct sti_blkmvout out;
    528 	} a;
    529 
    530 	memset(&a, 0, sizeof(a));
    531 
    532 	a.flags.flags = STI_BLKMVF_WAIT;
    533 	switch (f) {
    534 	case bmf_clear:
    535 		a.flags.flags |= STI_BLKMVF_CLR;
    536 		a.in.bg_colour = STI_COLOUR_BLACK;
    537 		break;
    538 	case bmf_underline:
    539 	case bmf_copy:
    540 		a.in.fg_colour = STI_COLOUR_WHITE;
    541 		a.in.bg_colour = STI_COLOUR_BLACK;
    542 		break;
    543 	case bmf_invert:
    544 		a.flags.flags |= STI_BLKMVF_COLR;
    545 		a.in.fg_colour = STI_COLOUR_BLACK;
    546 		a.in.bg_colour = STI_COLOUR_WHITE;
    547 		break;
    548 	}
    549 	a.in.srcx = x1;
    550 	a.in.srcy = y1;
    551 	a.in.dstx = x2;
    552 	a.in.dsty = y2;
    553 	a.in.height = h;
    554 	a.in.width = w;
    555 
    556 	(*sc->blkmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
    557 #ifdef STIDEBUG
    558 	if (a.out.errno)
    559 		printf("%s: blkmv returned %d\n", sc->sc_dev.dv_xname,
    560 		    a.out.errno);
    561 #endif
    562 }
    563 
    564 int
    565 sti_setcment(struct sti_softc *sc, u_int i, u_char r, u_char g, u_char b)
    566 {
    567 	struct {
    568 		struct sti_scmentflags flags;
    569 		struct sti_scmentin in;
    570 		struct sti_scmentout out;
    571 	} a;
    572 
    573 	memset(&a, 0, sizeof(a));
    574 
    575 	a.flags.flags = STI_SCMENTF_WAIT;
    576 	a.in.entry = i;
    577 	a.in.value = (r << 16) | (g << 8) | b;
    578 
    579 	(*sc->scment)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
    580 
    581 	return a.out.errno;
    582 }
    583 
    584 int
    585 sti_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l)
    586 {
    587 	struct sti_softc *sc = v;
    588 	struct wsdisplay_fbinfo *wdf;
    589 	struct wsdisplay_cmap *cmapp;
    590 	u_int mode, idx, count;
    591 	int i, ret;
    592 
    593 	ret = 0;
    594 	switch (cmd) {
    595 	case WSDISPLAYIO_GMODE:
    596 		*(u_int *)data = sc->sc_wsmode;
    597 		break;
    598 
    599 	case WSDISPLAYIO_SMODE:
    600 		mode = *(u_int *)data;
    601 		if (sc->sc_wsmode == WSDISPLAYIO_MODE_EMUL &&
    602 		    mode == WSDISPLAYIO_MODE_DUMBFB)
    603 			ret = sti_init(sc, 0);
    604 		else if (sc->sc_wsmode == WSDISPLAYIO_MODE_DUMBFB &&
    605 		    mode == WSDISPLAYIO_MODE_EMUL)
    606 			ret = sti_init(sc, STI_TEXTMODE);
    607 		sc->sc_wsmode = mode;
    608 		break;
    609 
    610 	case WSDISPLAYIO_GTYPE:
    611 		*(u_int *)data = WSDISPLAY_TYPE_STI;
    612 		break;
    613 
    614 	case WSDISPLAYIO_GINFO:
    615 		wdf = (struct wsdisplay_fbinfo *)data;
    616 		wdf->height = sc->sc_cfg.scr_height;
    617 		wdf->width  = sc->sc_cfg.scr_width;
    618 		wdf->depth  = sc->sc_bpp;
    619 		wdf->cmsize = STI_NCMAP;
    620 		break;
    621 
    622 	case WSDISPLAYIO_LINEBYTES:
    623 		*(u_int *)data = sc->sc_cfg.fb_width;
    624 		break;
    625 
    626 	case WSDISPLAYIO_GETCMAP:
    627 		if (sc->scment == NULL)
    628 			return ENOTTY;
    629 		cmapp = (struct wsdisplay_cmap *)data;
    630 		idx = cmapp->index;
    631 		count = cmapp->count;
    632 		if (idx > STI_NCMAP || idx + count >= STI_NCMAP)
    633 			return EINVAL;
    634 		if ((ret = copyout(&sc->sc_rcmap[idx], cmapp->red, count)))
    635 			break;
    636 		if ((ret = copyout(&sc->sc_gcmap[idx], cmapp->green, count)))
    637 			break;
    638 		if ((ret = copyout(&sc->sc_bcmap[idx], cmapp->blue, count)))
    639 			break;
    640 		break;
    641 
    642 	case WSDISPLAYIO_PUTCMAP:
    643 		if (sc->scment == NULL)
    644 			return ENOTTY;
    645 		cmapp = (struct wsdisplay_cmap *)data;
    646 		idx = cmapp->index;
    647 		count = cmapp->count;
    648 		if (idx > STI_NCMAP || idx + count >= STI_NCMAP)
    649 			return EINVAL;
    650 		if ((ret = copyin(cmapp->red, &sc->sc_rcmap[idx], count)))
    651 			break;
    652 		if ((ret = copyin(cmapp->green, &sc->sc_gcmap[idx], count)))
    653 			break;
    654 		if ((ret = copyin(cmapp->blue, &sc->sc_bcmap[idx], count)))
    655 			break;
    656 		for (i = idx + count - 1; i >= idx; i--)
    657 			if ((ret = sti_setcment(sc, i, sc->sc_rcmap[i],
    658 			    sc->sc_gcmap[i], sc->sc_bcmap[i]))) {
    659 #ifdef STIDEBUG
    660 				printf("sti_ioctl: "
    661 				    "sti_setcment(%d, %u, %u, %u): %%d\n", i,
    662 				    (u_int)sc->sc_rcmap[i],
    663 				    (u_int)sc->sc_gcmap[i],
    664 				    (u_int)sc->sc_bcmap[i]);
    665 #endif
    666 				ret = EINVAL;
    667 				break;
    668 			}
    669 		break;
    670 
    671 	case WSDISPLAYIO_SVIDEO:
    672 	case WSDISPLAYIO_GVIDEO:
    673 	case WSDISPLAYIO_GCURPOS:
    674 	case WSDISPLAYIO_SCURPOS:
    675 	case WSDISPLAYIO_GCURMAX:
    676 	case WSDISPLAYIO_GCURSOR:
    677 	case WSDISPLAYIO_SCURSOR:
    678 	default:
    679 		return (ENOTTY);	/* not supported yet */
    680 	}
    681 
    682 	return (ret);
    683 }
    684 
    685 paddr_t
    686 sti_mmap(void *v, void *vs, off_t offset, int prot)
    687 {
    688 	/* XXX not finished */
    689 	return -1;
    690 }
    691 
    692 int
    693 sti_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
    694     int *cxp, int *cyp, long *defattr)
    695 {
    696 	struct sti_softc *sc = v;
    697 
    698 	if (sc->sc_nscreens > 0)
    699 		return ENOMEM;
    700 
    701 	*cookiep = sc;
    702 	*cxp = 0;
    703 	*cyp = 0;
    704 	sti_alloc_attr(sc, 0, 0, 0, defattr);
    705 	sc->sc_nscreens++;
    706 	return 0;
    707 }
    708 
    709 void
    710 sti_free_screen(void *v, void *cookie)
    711 {
    712 	struct sti_softc *sc = v;
    713 
    714 	sc->sc_nscreens--;
    715 }
    716 
    717 int
    718 sti_show_screen(void *v, void *cookie, int waitok, void (*cb)(void *, int, int), void *cbarg)
    719 {
    720 	return 0;
    721 }
    722 
    723 int
    724 sti_load_font(void *v, void *cookie, struct wsdisplay_font *font)
    725 {
    726 	return -1;
    727 }
    728 
    729 void
    730 sti_cursor(void *v, int on, int row, int col)
    731 {
    732 	struct sti_softc *sc = v;
    733 	struct sti_font *fp = &sc->sc_curfont;
    734 
    735 	sti_bmove(sc, col * fp->width, row * fp->height, col * fp->width,
    736 	    row * fp->height, fp->height, fp->width, bmf_invert);
    737 }
    738 
    739 int
    740 sti_mapchar(void *v, int uni, u_int *index)
    741 {
    742 	if (uni < 256)
    743 		*index = uni;
    744 
    745 	return 1;
    746 }
    747 
    748 void
    749 sti_putchar(void *v, int row, int col, u_int uc, long attr)
    750 {
    751 	struct sti_softc *sc = v;
    752 	struct sti_font *fp = &sc->sc_curfont;
    753 
    754 	if (sc->sc_romfont != NULL) {
    755 		/*
    756 		 * Font is in memory, use unpmv
    757 		 */
    758 		struct {
    759 			struct sti_unpmvflags flags;
    760 			struct sti_unpmvin in;
    761 			struct sti_unpmvout out;
    762 		} a;
    763 
    764 		memset(&a, 0, sizeof(a));
    765 
    766 		a.flags.flags = STI_UNPMVF_WAIT;
    767 		/* XXX does not handle text attributes */
    768 		a.in.fg_colour = STI_COLOUR_WHITE;
    769 		a.in.bg_colour = STI_COLOUR_BLACK;
    770 		a.in.x = col * fp->width;
    771 		a.in.y = row * fp->height;
    772 		a.in.font_addr = sc->sc_romfont;
    773 		a.in.index = uc;
    774 
    775 		(*sc->unpmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
    776 	} else {
    777 		/*
    778 		 * Font is in frame buffer, use blkmv
    779 		 */
    780 		struct {
    781 			struct sti_blkmvflags flags;
    782 			struct sti_blkmvin in;
    783 			struct sti_blkmvout out;
    784 		} a;
    785 
    786 		memset(&a, 0, sizeof(a));
    787 
    788 		a.flags.flags = STI_BLKMVF_WAIT;
    789 		/* XXX does not handle text attributes */
    790 		a.in.fg_colour = STI_COLOUR_WHITE;
    791 		a.in.bg_colour = STI_COLOUR_BLACK;
    792 
    793 		a.in.srcx = ((uc - fp->first) / sc->sc_fontmaxcol) *
    794 		    fp->width + sc->sc_fontbase;
    795 		a.in.srcy = ((uc - fp->first) % sc->sc_fontmaxcol) *
    796 		    fp->height;
    797 		a.in.dstx = col * fp->width;
    798 		a.in.dsty = row * fp->height;
    799 		a.in.height = fp->height;
    800 		a.in.width = fp->width;
    801 
    802 		(*sc->blkmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
    803 	}
    804 }
    805 
    806 void
    807 sti_copycols(void *v, int row, int srccol, int dstcol, int ncols)
    808 {
    809 	struct sti_softc *sc = v;
    810 	struct sti_font *fp = &sc->sc_curfont;
    811 
    812 	sti_bmove(sc, srccol * fp->width, row * fp->height, dstcol * fp->width,
    813 	    row * fp->height, fp->height, ncols * fp->width, bmf_copy);
    814 }
    815 
    816 void
    817 sti_erasecols(void *v, int row, int startcol, int ncols, long attr)
    818 {
    819 	struct sti_softc *sc = v;
    820 	struct sti_font *fp = &sc->sc_curfont;
    821 
    822 	sti_bmove(sc, startcol * fp->width, row * fp->height,
    823 	    startcol * fp->width, row * fp->height, fp->height,
    824 	    ncols * fp->width, bmf_clear);
    825 }
    826 
    827 void
    828 sti_copyrows(void *v, int srcrow, int dstrow, int nrows)
    829 {
    830 	struct sti_softc *sc = v;
    831 	struct sti_font *fp = &sc->sc_curfont;
    832 
    833 	sti_bmove(sc, sc->sc_cfg.oscr_width, srcrow * fp->height,
    834 	    sc->sc_cfg.oscr_width, dstrow * fp->height,
    835 	    nrows * fp->height, sc->sc_cfg.scr_width, bmf_copy);
    836 }
    837 
    838 void
    839 sti_eraserows(void *v, int srcrow, int nrows, long attr)
    840 {
    841 	struct sti_softc *sc = v;
    842 	struct sti_font *fp = &sc->sc_curfont;
    843 
    844 	sti_bmove(sc, sc->sc_cfg.oscr_width, srcrow * fp->height,
    845 	    sc->sc_cfg.oscr_width, srcrow * fp->height,
    846 	    nrows * fp->height, sc->sc_cfg.scr_width, bmf_clear);
    847 }
    848 
    849 int
    850 sti_alloc_attr(void *v, int fg, int bg, int flags, long *pattr)
    851 {
    852 	/* struct sti_softc *sc = v; */
    853 
    854 	*pattr = 0;
    855 
    856 	return 0;
    857 }
    858 
    859