Home | History | Annotate | Line # | Download | only in dev
      1 /*	$NetBSD: summitfb.c,v 1.34 2025/04/28 04:46:58 macallan Exp $	*/
      2 
      3 /*	$OpenBSD: sti_pci.c,v 1.7 2009/02/06 22:51:04 miod Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 2006, 2007 Miodrag Vallat.
      7  ^                     2024 Michael Lorenz
      8  *
      9  * Permission to use, copy, modify, and distribute this software for any
     10  * purpose with or without fee is hereby granted, provided that the above
     11  * copyright notice, this permission notice, and the disclaimer below
     12  * appear in all copies.
     13  *
     14  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     15  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     16  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     17  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     18  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     19  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     20  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     21  */
     22 
     23 /*
     24  * a native driver for HP Visualize FX graphics cards, so far tested only on
     25  * my FX4
     26  * STI portions are from Miodrag Vallat's sti_pci.c
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: summitfb.c,v 1.34 2025/04/28 04:46:58 macallan Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/kmem.h>
     35 #include <sys/device.h>
     36 #include <sys/mutex.h>
     37 
     38 #include <dev/pci/pcivar.h>
     39 #include <dev/pci/pcireg.h>
     40 #include <dev/pci/pcidevs.h>
     41 #include <dev/pci/pciio.h>
     42 
     43 #include <dev/wscons/wsdisplayvar.h>
     44 #include <dev/wscons/wsconsio.h>
     45 #include <dev/wsfont/wsfont.h>
     46 #include <dev/rasops/rasops.h>
     47 #include <dev/wscons/wsdisplay_vconsvar.h>
     48 #include <dev/pci/wsdisplay_pci.h>
     49 #include <dev/wscons/wsdisplay_glyphcachevar.h>
     50 
     51 #include <dev/ic/stireg.h>
     52 #include <dev/ic/summitreg.h>
     53 #include <dev/ic/stivar.h>
     54 
     55 #include "opt_summitfb.h"
     56 
     57 #ifdef SUMMITFB_DEBUG
     58 #define	DPRINTF(s) printf s
     59 #else
     60 #define	DPRINTF(s) __nothing
     61 #endif
     62 
     63 int	summitfb_match(device_t, cfdata_t, void *);
     64 void	summitfb_attach(device_t, device_t, void *);
     65 
     66 struct	summitfb_softc {
     67 	device_t		sc_dev;
     68 	pci_chipset_tag_t	sc_pc;
     69 	pcitag_t		sc_tag;
     70 
     71 	/* stuff we need in order to use the STI ROM */
     72 	struct sti_softc	sc_base;
     73 	struct sti_screen 	sc_scr;
     74 	bus_space_handle_t	sc_romh;
     75 
     76 	int sc_width, sc_height;
     77 	int sc_locked;
     78 	struct vcons_screen sc_console_screen;
     79 	struct wsscreen_descr sc_defaultscreen_descr;
     80 	const struct wsscreen_descr *sc_screens[1];
     81 	struct wsscreen_list sc_screenlist;
     82 	struct vcons_data vd;
     83 	int sc_mode;
     84 	u_char sc_cmap_red[256];
     85 	u_char sc_cmap_green[256];
     86 	u_char sc_cmap_blue[256];
     87 	uint32_t sc_write_mode, sc_read_mode;
     88 	/* cursor stuff */
     89 	int sc_cursor_x, sc_cursor_y;
     90 	int sc_hot_x, sc_hot_y, sc_enabled;
     91 	/* font-in-vram */
     92 	struct wsdisplay_font *sc_font;
     93 	int sc_font_start;	/* x of font area */
     94 	int sc_cols;		/* chars per line in font area */
     95 	uint32_t sc_palette[16];
     96 	int sc_video_on;
     97 	glyphcache sc_gc;
     98 };
     99 
    100 CFATTACH_DECL_NEW(summitfb, sizeof(struct summitfb_softc),
    101     summitfb_match, summitfb_attach, NULL, NULL);
    102 
    103 int	summitfb_readbar(struct sti_softc *, struct pci_attach_args *, u_int,
    104 	    int);
    105 int	summitfb_check_rom(struct summitfb_softc *, struct pci_attach_args *);
    106 void	summitfb_enable_rom(struct sti_softc *);
    107 void	summitfb_disable_rom(struct sti_softc *);
    108 void	summitfb_enable_rom_internal(struct summitfb_softc *);
    109 void	summitfb_disable_rom_internal(struct summitfb_softc *);
    110 
    111 void 	summitfb_setup(struct summitfb_softc *);
    112 
    113 /* XXX these really need to go into their own header */
    114 int	sti_pci_is_console(struct pci_attach_args *, bus_addr_t *);
    115 int	sti_rom_setup(struct sti_rom *, bus_space_tag_t, bus_space_tag_t,
    116 	    bus_space_handle_t, bus_addr_t *, u_int);
    117 int	sti_screen_setup(struct sti_screen *, int);
    118 void	sti_describe_screen(struct sti_softc *, struct sti_screen *);
    119 
    120 #define PCI_ROM_SIZE(mr)						      \
    121 	(PCI_MAPREG_ROM_ADDR(mr) & -PCI_MAPREG_ROM_ADDR(mr))
    122 
    123 /* wsdisplay stuff */
    124 static int	summitfb_ioctl(void *, void *, u_long, void *, int,
    125 		    struct lwp *);
    126 static paddr_t	summitfb_mmap(void *, void *, off_t, int);
    127 static void	summitfb_init_screen(void *, struct vcons_screen *, int,
    128 		    long *);
    129 
    130 static int	summitfb_putcmap(struct summitfb_softc *,
    131 		    struct wsdisplay_cmap *);
    132 static int 	summitfb_getcmap(struct summitfb_softc *,
    133 		    struct wsdisplay_cmap *);
    134 static void	summitfb_restore_palette(struct summitfb_softc *);
    135 static int 	summitfb_putpalreg(struct summitfb_softc *, uint8_t, uint8_t,
    136 		    uint8_t, uint8_t);
    137 
    138 static inline void summitfb_setup_fb(struct summitfb_softc *);
    139 static void 	summitfb_clearfb(struct summitfb_softc *);
    140 static void	summitfb_rectfill(struct summitfb_softc *, int, int, int, int,
    141 		    uint32_t);
    142 static void	summitfb_bitblt(void *, int, int, int, int, int,
    143 		    int, int);
    144 
    145 static void	summitfb_cursor(void *, int, int, int);
    146 static void	summitfb_putchar(void *, int, int, u_int, long);
    147 static void	summitfb_putchar_aa(void *, int, int, u_int, long);
    148 static void	summitfb_copycols(void *, int, int, int, int);
    149 static void	summitfb_erasecols(void *, int, int, int, long);
    150 static void	summitfb_copyrows(void *, int, int, int);
    151 static void	summitfb_eraserows(void *, int, int, long);
    152 
    153 static void	summitfb_move_cursor(struct summitfb_softc *, int, int);
    154 static int	summitfb_do_cursor(struct summitfb_softc *,
    155 		    struct wsdisplay_cursor *);
    156 
    157 static void	summitfb_set_video(struct summitfb_softc *, int);
    158 
    159 static void	summitfb_copyfont(struct summitfb_softc *);
    160 
    161 struct wsdisplay_accessops summitfb_accessops = {
    162 	.ioctl = summitfb_ioctl,
    163 	.mmap = summitfb_mmap,
    164 	.alloc_screen = NULL,
    165 	.free_screen = NULL,
    166 	.show_screen = NULL,
    167 	.load_font = NULL,
    168 	.pollc = NULL,
    169 	.scroll = NULL,
    170 };
    171 
    172 static inline void summitfb_wait_fifo(struct summitfb_softc *, uint32_t);
    173 static inline void summitfb_wait(struct summitfb_softc *);
    174 
    175 int	sti_fetchfonts(struct sti_screen *, struct sti_inqconfout *, uint32_t,
    176 	    u_int);
    177 
    178 int
    179 summitfb_match(device_t parent, cfdata_t cf, void *aux)
    180 {
    181 	struct pci_attach_args *paa = aux;
    182 
    183 	if (PCI_VENDOR(paa->pa_id) != PCI_VENDOR_HP)
    184 		return 0;
    185 
    186 	if (PCI_PRODUCT(paa->pa_id) == PCI_PRODUCT_HP_VISUALIZE_FX4)
    187 		return 10;	/* beat out sti at pci */
    188 
    189 	return 0;
    190 }
    191 
    192 static inline uint32_t
    193 summitfb_read4(struct summitfb_softc *sc, uint32_t offset)
    194 {
    195 	struct sti_rom *rom = sc->sc_base.sc_rom;
    196 	bus_space_tag_t memt = rom->memt;
    197 	bus_space_handle_t memh = rom->regh[2];
    198 
    199 	return bus_space_read_stream_4(memt, memh, offset - 0x400000);
    200 }
    201 
    202 static inline void
    203 summitfb_write4(struct summitfb_softc *sc, uint32_t offset, uint32_t val)
    204 {
    205 	struct sti_rom *rom = sc->sc_base.sc_rom;
    206 	bus_space_tag_t memt = rom->memt;
    207 	bus_space_handle_t memh = rom->regh[2];
    208 
    209 	bus_space_write_stream_4(memt, memh, offset - 0x400000, val);
    210 }
    211 
    212 static inline void
    213 summitfb_write_mode(struct summitfb_softc *sc, uint32_t mode)
    214 {
    215 	if (sc->sc_write_mode == mode)
    216 		return;
    217 	summitfb_wait(sc);
    218 	summitfb_write4(sc, VISFX_VRAM_WRITE_MODE, mode);
    219 	sc->sc_write_mode = mode;
    220 }
    221 
    222 static inline void
    223 summitfb_read_mode(struct summitfb_softc *sc, uint32_t mode)
    224 {
    225 	if (sc->sc_read_mode == mode)
    226 		return;
    227 	summitfb_wait(sc);
    228 	summitfb_write4(sc, VISFX_VRAM_READ_MODE, mode);
    229 	sc->sc_read_mode = mode;
    230 }
    231 
    232 void
    233 summitfb_attach(device_t parent, device_t self, void *aux)
    234 {
    235 	struct summitfb_softc *sc = device_private(self);
    236 	struct pci_attach_args *paa = aux;
    237 	struct sti_rom *rom;
    238 	struct rasops_info *ri;
    239 	struct wsemuldisplaydev_attach_args aa;
    240 	struct sti_dd *dd;
    241 	unsigned long defattr = 0;
    242 	int ret, is_console = 0;
    243 
    244 	sc->sc_dev = self;
    245 
    246 	sc->sc_pc = paa->pa_pc;
    247 	sc->sc_tag = paa->pa_tag;
    248 	sc->sc_base.sc_dev = self;
    249 	sc->sc_base.sc_enable_rom = summitfb_enable_rom;
    250 	sc->sc_base.sc_disable_rom = summitfb_disable_rom;
    251 
    252 	aprint_normal("\n");
    253 
    254 	if (summitfb_check_rom(sc, paa) != 0)
    255 		return;
    256 
    257 	ret = sti_pci_is_console(paa, sc->sc_base. bases);
    258 	if (ret != 0) {
    259 		sc->sc_base.sc_flags |= STI_CONSOLE;
    260 		is_console = 1;
    261 	}
    262 	rom = kmem_zalloc(sizeof(*rom), KM_SLEEP);
    263 	rom->rom_softc = &sc->sc_base;
    264 	ret = sti_rom_setup(rom, paa->pa_iot, paa->pa_memt, sc->sc_romh,
    265 	    sc->sc_base.bases, STI_CODEBASE_MAIN);
    266 	if (ret != 0) {
    267 		kmem_free(rom, sizeof(*rom));
    268 		return;
    269 	}
    270 
    271 	sc->sc_base.sc_rom = rom;
    272 	dd = &rom->rom_dd;
    273 
    274 	sc->sc_scr.scr_rom = sc->sc_base.sc_rom;
    275 	ret = sti_screen_setup(&sc->sc_scr, STI_FBMODE);
    276 
    277 	sti_fetchfonts(&sc->sc_scr, NULL, dd->dd_fntaddr, 0);
    278 	wsfont_init();
    279 	summitfb_copyfont(sc);
    280 
    281 	sc->sc_width = sc->sc_scr.scr_cfg.scr_width;
    282 	sc->sc_height = sc->sc_scr.scr_cfg.scr_height;
    283 	sc->sc_write_mode = 0xffffffff;
    284 	sc->sc_read_mode = 0xffffffff;
    285 
    286 #ifdef SUMMITFB_DEBUG
    287 	sc->sc_height -= 200;
    288 #endif
    289 
    290 	sc->sc_defaultscreen_descr = (struct wsscreen_descr){
    291 		.name = "default",
    292 		.ncols = 0, .nrows = 0,
    293 		.textops = NULL,
    294 		.fontwidth = 8, .fontheight = 16,
    295 		.capabilities = WSSCREEN_WSCOLORS | WSSCREEN_HILIT |
    296 		    WSSCREEN_UNDERLINE | WSSCREEN_RESIZE,
    297 		.modecookie = NULL,
    298 	};
    299 
    300 	sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
    301 	sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
    302 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    303 	sc->sc_locked = 0;
    304 
    305 	vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
    306 	    &summitfb_accessops);
    307 	sc->vd.init_screen = summitfb_init_screen;
    308 	sc->vd.show_screen_cookie = &sc->sc_gc;
    309 	sc->vd.show_screen_cb = glyphcache_adapt;
    310 	ri = &sc->sc_console_screen.scr_ri;
    311 
    312 	sc->sc_gc.gc_bitblt = summitfb_bitblt;
    313 	sc->sc_gc.gc_blitcookie = sc;
    314 	sc->sc_gc.gc_rop = RopSrc;
    315 
    316 	summitfb_setup(sc);
    317 
    318 	vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, &defattr);
    319 	sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    320 
    321 	sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
    322 	sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
    323 	sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
    324 	sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
    325 
    326 	/*
    327 	 * STI lies to us - it reports a 2048x2048 framebuffer but blitter
    328 	 * ops wrap around below 1024 and we seem to have only about 250
    329 	 * usable columns to the right. Should still be enough to cache
    330 	 * a font or four.
    331 	 * So, the framebuffer seems to be 1536x1024, which is odd since the
    332 	 * FX4 is supposed to support resolutions higher than 1280x1024.
    333 	 * I guess video memory is allocated in 512x512 chunks
    334 	 */
    335 	glyphcache_init(&sc->sc_gc,
    336 	    sc->sc_height,
    337 	    sc->sc_height,
    338 	    (sc->sc_width + 511) & (~511),
    339 	    ri->ri_font->fontwidth,
    340 	    ri->ri_font->fontheight,
    341 	    defattr);
    342 
    343 	summitfb_restore_palette(sc);
    344 	summitfb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height,
    345 	    ri->ri_devcmap[(defattr >> 16) & 0xff]);
    346 	summitfb_setup_fb(sc);
    347 
    348 	if (is_console) {
    349 		wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
    350 		    defattr);
    351 
    352 		vcons_replay_msgbuf(&sc->sc_console_screen);
    353 	}
    354 
    355 	aprint_normal_dev(sc->sc_dev, "%s at %dx%d\n", sc->sc_scr.name,
    356 	    sc->sc_width, sc->sc_height);
    357 
    358 	/* no suspend/resume support yet */
    359 	pmf_device_register(sc->sc_dev, NULL, NULL);
    360 
    361 	aa.console = is_console;
    362 	aa.scrdata = &sc->sc_screenlist;
    363 	aa.accessops = &summitfb_accessops;
    364 	aa.accesscookie = &sc->vd;
    365 
    366 	config_found(sc->sc_dev, &aa, wsemuldisplaydevprint, CFARGS_NONE);
    367 }
    368 
    369 /*
    370  * Grovel the STI ROM image.
    371  */
    372 int
    373 summitfb_check_rom(struct summitfb_softc *spc, struct pci_attach_args *pa)
    374 {
    375 	struct sti_softc *sc = &spc->sc_base;
    376 	pcireg_t address, mask;
    377 	bus_space_handle_t romh;
    378 	bus_size_t romsize, subsize, stiromsize;
    379 	bus_addr_t selected, offs, suboffs;
    380 	uint32_t tmp;
    381 	int i;
    382 	int rc;
    383 
    384 	/* sort of inline sti_pci_enable_rom(sc) */
    385 	address = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    386 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM,
    387 	    ~PCI_MAPREG_ROM_ENABLE);
    388 	mask = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    389 	address |= PCI_MAPREG_ROM_ENABLE;
    390 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM, address);
    391 	sc->sc_flags |= STI_ROM_ENABLED;
    392 
    393 	/*
    394 	 * Map the complete ROM for now.
    395 	 */
    396 	romsize = PCI_ROM_SIZE(mask);
    397 	DPRINTF(("%s: mapping rom @ %lx for %lx\n", __func__,
    398 	    (long)PCI_MAPREG_ROM_ADDR(address), (long)romsize));
    399 
    400 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address), romsize,
    401 	    0, &romh);
    402 	if (rc != 0) {
    403 		aprint_error_dev(sc->sc_dev, "can't map PCI ROM (%d)\n", rc);
    404 		goto fail2;
    405 	}
    406 
    407 	summitfb_disable_rom_internal(spc);
    408 
    409 	/*
    410 	 * Iterate over the ROM images, pick the best candidate.
    411 	 */
    412 	selected = (bus_addr_t)-1;
    413 	for (offs = 0; offs < romsize; offs += subsize) {
    414 		summitfb_enable_rom_internal(spc);
    415 		/*
    416 		 * Check for a valid ROM header.
    417 		 */
    418 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 0);
    419 		tmp = le32toh(tmp);
    420 		if (tmp != 0x55aa0000) {
    421 			summitfb_disable_rom_internal(spc);
    422 			if (offs == 0) {
    423 				aprint_error_dev(sc->sc_dev,
    424 				    "invalid PCI ROM header signature"
    425 				    " (%08x)\n", tmp);
    426 				rc = EINVAL;
    427 			}
    428 			break;
    429 		}
    430 
    431 		/*
    432 		 * Check ROM type.
    433 		 */
    434 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 4);
    435 		tmp = le32toh(tmp);
    436 		if (tmp != 0x00000001) {	/* 1 == STI ROM */
    437 			summitfb_disable_rom_internal(spc);
    438 			if (offs == 0) {
    439 				aprint_error_dev(sc->sc_dev,
    440 				    "invalid PCI ROM type (%08x)\n", tmp);
    441 				rc = EINVAL;
    442 			}
    443 			break;
    444 		}
    445 
    446 		subsize = (bus_addr_t)bus_space_read_2(pa->pa_memt, romh,
    447 		    offs + 0x0c);
    448 		subsize <<= 9;
    449 
    450 #ifdef SUMMITFB_DEBUG
    451 		summitfb_disable_rom_internal(spc);
    452 		DPRINTF(("ROM offset %08x size %08x type %08x",
    453 		    (u_int)offs, (u_int)subsize, tmp));
    454 		summitfb_enable_rom_internal(spc);
    455 #endif
    456 
    457 		/*
    458 		 * Check for a valid ROM data structure.
    459 		 * We do not need it except to know what architecture the ROM
    460 		 * code is for.
    461 		 */
    462 
    463 		suboffs = offs + bus_space_read_2(pa->pa_memt, romh,
    464 		    offs + 0x18);
    465 		tmp = bus_space_read_4(pa->pa_memt, romh, suboffs + 0);
    466 		tmp = le32toh(tmp);
    467 		if (tmp != 0x50434952) {	/* PCIR */
    468 			summitfb_disable_rom_internal(spc);
    469 			if (offs == 0) {
    470 				aprint_error_dev(sc->sc_dev, "invalid PCI data"
    471 				    " signature (%08x)\n", tmp);
    472 				rc = EINVAL;
    473 			} else {
    474 				DPRINTF((" invalid PCI data signature %08x\n",
    475 				    tmp));
    476 				continue;
    477 			}
    478 		}
    479 
    480 		tmp = bus_space_read_1(pa->pa_memt, romh, suboffs + 0x14);
    481 		summitfb_disable_rom_internal(spc);
    482 		DPRINTF((" code %02x", tmp));
    483 
    484 		switch (tmp) {
    485 #ifdef __hppa__
    486 		case 0x10:
    487 			if (selected == (bus_addr_t)-1)
    488 				selected = offs;
    489 			break;
    490 #endif
    491 #ifdef __i386__
    492 		case 0x00:
    493 			if (selected == (bus_addr_t)-1)
    494 				selected = offs;
    495 			break;
    496 #endif
    497 		default:
    498 			DPRINTF((" (wrong architecture)"));
    499 			break;
    500 		}
    501 		DPRINTF(("%s\n", selected == offs ? " -> SELECTED" : ""));
    502 	}
    503 
    504 	if (selected == (bus_addr_t)-1) {
    505 		if (rc == 0) {
    506 			aprint_error_dev(sc->sc_dev, "found no ROM with "
    507 			    "correct microcode architecture\n");
    508 			rc = ENOEXEC;
    509 		}
    510 		goto fail;
    511 	}
    512 
    513 	/*
    514 	 * Read the STI region BAR assignments.
    515 	 */
    516 
    517 	summitfb_enable_rom_internal(spc);
    518 	offs = selected + bus_space_read_2(pa->pa_memt, romh, selected + 0x0e);
    519 	for (i = 0; i < STI_REGION_MAX; i++) {
    520 		rc = summitfb_readbar(sc, pa, i,
    521 		    bus_space_read_1(pa->pa_memt, romh, offs + i));
    522 		if (rc != 0)
    523 			goto fail;
    524 	}
    525 
    526 	/*
    527 	 * Find out where the STI ROM itself lies, and its size.
    528 	 */
    529 
    530 	offs = selected +
    531 	    bus_space_read_4(pa->pa_memt, romh, selected + 0x08);
    532 	stiromsize = bus_space_read_4(pa->pa_memt, romh, offs + 0x18);
    533 	stiromsize = le32toh(stiromsize);
    534 	summitfb_disable_rom_internal(spc);
    535 
    536 	/*
    537 	 * Replace our mapping with a smaller mapping of only the area
    538 	 * we are interested in.
    539 	 */
    540 
    541 	DPRINTF(("remapping rom @ %lx for %lx\n",
    542 	    (long)(PCI_MAPREG_ROM_ADDR(address) + offs), (long)stiromsize));
    543 	bus_space_unmap(pa->pa_memt, romh, romsize);
    544 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address) + offs,
    545 	    stiromsize, 0, &spc->sc_romh);
    546 	if (rc != 0) {
    547 		aprint_error_dev(sc->sc_dev, "can't map STI ROM (%d)\n",
    548 		    rc);
    549 		goto fail2;
    550 	}
    551  	summitfb_disable_rom_internal(spc);
    552 	sc->sc_flags &= ~STI_ROM_ENABLED;
    553 
    554 	return 0;
    555 
    556 fail:
    557 	bus_space_unmap(pa->pa_memt, romh, romsize);
    558 fail2:
    559 	summitfb_disable_rom_internal(spc);
    560 
    561 	return rc;
    562 }
    563 
    564 /*
    565  * Decode a BAR register.
    566  */
    567 int
    568 summitfb_readbar(struct sti_softc *sc, struct pci_attach_args *pa,
    569     u_int region, int bar)
    570 {
    571 	bus_addr_t addr;
    572 	bus_size_t size;
    573 	uint32_t cf;
    574 	int rc;
    575 
    576 	if (bar == 0) {
    577 		sc->bases[region] = 0;
    578 		return 0;
    579 	}
    580 
    581 #ifdef DIAGNOSTIC
    582 	if (bar < PCI_MAPREG_START || bar > PCI_MAPREG_PPB_END) {
    583 		summitfb_disable_rom(sc);
    584 		printf("%s: unexpected bar %02x for region %d\n",
    585 		    device_xname(sc->sc_dev), bar, region);
    586 		summitfb_enable_rom(sc);
    587 	}
    588 #endif
    589 
    590 	cf = pci_conf_read(pa->pa_pc, pa->pa_tag, bar);
    591 
    592 	rc = pci_mapreg_info(pa->pa_pc, pa->pa_tag, bar, PCI_MAPREG_TYPE(cf),
    593 	    &addr, &size, NULL);
    594 
    595 	if (rc != 0) {
    596 		summitfb_disable_rom(sc);
    597 		aprint_error_dev(sc->sc_dev, "invalid bar %02x"
    598 		    " for region %d\n",
    599 		    bar, region);
    600 		summitfb_enable_rom(sc);
    601 		return rc;
    602 	}
    603 
    604 	sc->bases[region] = addr;
    605 	return 0;
    606 }
    607 
    608 /*
    609  * Enable PCI ROM.
    610  */
    611 void
    612 summitfb_enable_rom_internal(struct summitfb_softc *spc)
    613 {
    614 	pcireg_t address;
    615 
    616 	KASSERT(spc != NULL);
    617 
    618 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    619 	address |= PCI_MAPREG_ROM_ENABLE;
    620 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    621 }
    622 
    623 void
    624 summitfb_enable_rom(struct sti_softc *sc)
    625 {
    626 	struct summitfb_softc *spc = device_private(sc->sc_dev);
    627 
    628 	if (!ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    629 		summitfb_enable_rom_internal(spc);
    630 	}
    631 	SET(sc->sc_flags, STI_ROM_ENABLED);
    632 }
    633 
    634 /*
    635  * Disable PCI ROM.
    636  */
    637 void
    638 summitfb_disable_rom_internal(struct summitfb_softc *spc)
    639 {
    640 	pcireg_t address;
    641 
    642 	KASSERT(spc != NULL);
    643 
    644 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    645 	address &= ~PCI_MAPREG_ROM_ENABLE;
    646 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    647 }
    648 
    649 void
    650 summitfb_disable_rom(struct sti_softc *sc)
    651 {
    652 	struct summitfb_softc *spc = device_private(sc->sc_dev);
    653 
    654 	if (ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    655 		summitfb_disable_rom_internal(spc);
    656 	}
    657 	CLR(sc->sc_flags, STI_ROM_ENABLED);
    658 }
    659 
    660 static inline void
    661 summitfb_wait(struct summitfb_softc *sc)
    662 {
    663 
    664 	while (summitfb_read4(sc, VISFX_STATUS) != 0)
    665 		continue;
    666 }
    667 
    668 static inline void
    669 summitfb_setup_fb(struct summitfb_softc *sc)
    670 {
    671 
    672 	summitfb_wait(sc);
    673 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
    674 		summitfb_write_mode(sc, VISFX_WRITE_MODE_PLAIN);
    675 		summitfb_read_mode(sc, VISFX_WRITE_MODE_PLAIN);
    676 		summitfb_write4(sc, VISFX_APERTURE_ACCESS, VISFX_DEPTH_8);
    677 		/* make overlay opaque */
    678 		summitfb_write4(sc, VISFX_OTR, OTR_T | OTR_L1 | OTR_L0);
    679 	} else {
    680 		summitfb_write_mode(sc, OTC01 | BIN8F | BUFFL);
    681 		summitfb_read_mode(sc, OTC01 | BIN8F | BUFFL);
    682 		summitfb_write4(sc, VISFX_APERTURE_ACCESS, VISFX_DEPTH_32);
    683 		/* make overlay transparent */
    684 		summitfb_write4(sc, VISFX_OTR, OTR_A);
    685 	}
    686 	summitfb_write4(sc, VISFX_IBO, RopSrc);
    687 }
    688 
    689 void
    690 summitfb_setup(struct summitfb_softc *sc)
    691 {
    692 	int i;
    693 
    694 	sc->sc_hot_x = 0;
    695 	sc->sc_hot_y = 0;
    696 	sc->sc_enabled = 0;
    697 	sc->sc_video_on = 1;
    698 
    699 	summitfb_wait(sc);
    700 #if 1
    701 	/* these control byte swapping */
    702 	summitfb_write4(sc, 0xb08044, 0x1b);	/* MFU_BSCTD */
    703 	summitfb_write4(sc, 0xb08048, 0x1b);	/* MFU_BSCCTL */
    704 
    705 	summitfb_write4(sc, 0x920860, 0xe4);	/* FBC_RBS */
    706 	summitfb_write4(sc, 0x921114, 0);	/* CPE, clip plane enable */
    707 	summitfb_write4(sc, 0x9211d8, 0);	/* FCDA */
    708 
    709 	summitfb_write4(sc, 0xa00818, 0);	/* WORG window origin */
    710 	summitfb_write4(sc, 0xa0081c, 0);	/* FBS front buffer select*/
    711 	summitfb_write4(sc, 0xa00850, 0);	/* MISC_CTL */
    712 	summitfb_write4(sc, 0xa0086c, 0);	/* WCE window clipping enable */
    713 #endif
    714 	/* initialize drawiing engine */
    715 	summitfb_wait(sc);
    716 	summitfb_write4(sc, VISFX_CONTROL, 0);	// clear WFC
    717 	summitfb_write4(sc, VISFX_APERTURE_ACCESS, VISFX_DEPTH_8);
    718 	summitfb_write4(sc, VISFX_PIXEL_MASK, 0xffffffff);
    719 	summitfb_write4(sc, VISFX_PLANE_MASK, 0xffffffff);
    720 	summitfb_write4(sc, VISFX_FOE, FOE_BLEND_ROP);
    721 	summitfb_write4(sc, VISFX_IBO, RopSrc);
    722 	summitfb_write_mode(sc, VISFX_WRITE_MODE_PLAIN);
    723 	summitfb_read_mode(sc, OTC04 | BIN8I | BUFovl);
    724 	summitfb_write4(sc, VISFX_CLIP_TL, 0);
    725 	summitfb_write4(sc, VISFX_CLIP_WH,
    726 	    ((sc->sc_scr.fbwidth) << 16) | (sc->sc_scr.fbheight));
    727 	/* turn off the cursor sprite */
    728 	summitfb_write4(sc, VISFX_CURSOR_POS, 0);
    729 	/* disable throttling by moving the throttle window way off screen */
    730 	summitfb_write4(sc, VISFX_TCR, 0x10001000);
    731 
    732 	/* make sure the overlay is opaque */
    733 	summitfb_write4(sc, VISFX_OTR, OTR_T | OTR_L1 | OTR_L0);
    734 
    735 	/*
    736 	 * initialize XLUT, I mean attribute table
    737 	 * set all to 24bit, CFS1
    738 	 */
    739 	for (i = 0; i < 16; i++)
    740 		summitfb_write4(sc, VISFX_IAA(i), IAA_8F | IAA_CFS1);
    741 	/* RGB8, no LUT */
    742 	summitfb_write4(sc, VISFX_CFS(1), CFS_8F | CFS_BYPASS);
    743 	/* overlay is 8bit, uses LUT 0 */
    744 	summitfb_write4(sc, VISFX_CFS(16), CFS_8I | CFS_LUT0);
    745 	summitfb_write4(sc, VISFX_CFS(17), CFS_8I | CFS_LUT0);
    746 
    747 	/* zero the attribute plane */
    748 	summitfb_write_mode(sc, OTC04 | BINapln);
    749 	summitfb_wait_fifo(sc, 12);
    750 	summitfb_write4(sc, VISFX_PLANE_MASK, 0xff);
    751 	summitfb_write4(sc, VISFX_IBO, 0);	/* GXclear */
    752 	summitfb_write4(sc, VISFX_FG_COLOUR, 0);
    753 	summitfb_write4(sc, VISFX_START, 0);
    754 	summitfb_write4(sc, VISFX_SIZE, (sc->sc_width << 16) | sc->sc_height);
    755 	summitfb_wait(sc);
    756 	summitfb_write4(sc, VISFX_PLANE_MASK, 0xffffffff);
    757 
    758 	/* turn off force attr so the above takes effect */
    759 	summitfb_write4(sc, VISFX_FATTR, 0);
    760 
    761 	summitfb_setup_fb(sc);
    762 }
    763 
    764 static int
    765 summitfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
    766     struct lwp *l)
    767 {
    768 	struct vcons_data *vd = v;
    769 	struct summitfb_softc *sc = vd->cookie;
    770 	struct wsdisplay_fbinfo *wdf;
    771 	struct vcons_screen *ms = vd->active;
    772 
    773 	switch (cmd) {
    774 	case WSDISPLAYIO_GTYPE:
    775 		*(u_int *)data = WSDISPLAY_TYPE_STI;
    776 		return 0;
    777 
    778 	case GCID:
    779 		*(u_int *)data = sc->sc_scr.scr_rom->rom_dd.dd_grid[0];
    780 		return 0;
    781 
    782 	/* PCI config read/write passthrough. */
    783 	case PCI_IOC_CFGREAD:
    784 	case PCI_IOC_CFGWRITE:
    785 		return pci_devioctl(sc->sc_pc, sc->sc_tag,
    786 		    cmd, data, flag, l);
    787 
    788 	case WSDISPLAYIO_GET_BUSID:
    789 		return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
    790 		    sc->sc_tag, data);
    791 
    792 	case WSDISPLAYIO_GINFO:
    793 		if (ms == NULL)
    794 			return ENODEV;
    795 		wdf = data;
    796 		wdf->height = ms->scr_ri.ri_height;
    797 		wdf->width = ms->scr_ri.ri_width;
    798 		wdf->depth = ms->scr_ri.ri_depth;
    799 		wdf->cmsize = 256;
    800 		return 0;
    801 
    802 	case WSDISPLAYIO_GETCMAP:
    803 		return summitfb_getcmap(sc,
    804 		    (struct wsdisplay_cmap *)data);
    805 
    806 	case WSDISPLAYIO_PUTCMAP:
    807 		return summitfb_putcmap(sc,
    808 		    (struct wsdisplay_cmap *)data);
    809 
    810 	case WSDISPLAYIO_LINEBYTES:
    811 		*(u_int *)data = 2048;
    812 		return 0;
    813 
    814 	case WSDISPLAYIO_SMODE: {
    815 		int new_mode = *(int *)data;
    816 
    817 		if (new_mode != sc->sc_mode) {
    818 			sc->sc_mode = new_mode;
    819 			if(new_mode == WSDISPLAYIO_MODE_EMUL) {
    820 				summitfb_setup(sc);
    821 				summitfb_restore_palette(sc);
    822 				glyphcache_wipe(&sc->sc_gc);
    823 				summitfb_rectfill(sc, 0, 0, sc->sc_width,
    824 				    sc->sc_height, ms->scr_ri.ri_devcmap[
    825 				    (ms->scr_defattr >> 16) & 0xff]);
    826 				vcons_redraw_screen(ms);
    827 				summitfb_set_video(sc, 1);
    828 			} else
    829 				summitfb_clearfb(sc);
    830 			summitfb_setup_fb(sc);
    831 		}
    832 		return 0;
    833 	}
    834 
    835 	case WSDISPLAYIO_GET_FBINFO: {
    836 		struct wsdisplayio_fbinfo *fbi = data;
    837 		int ret;
    838 
    839 		ret = wsdisplayio_get_fbinfo(&ms->scr_ri, fbi);
    840 		//fbi->fbi_fbsize = sc->sc_height * 2048;
    841 		fbi->fbi_stride = 8192;
    842 		fbi->fbi_bitsperpixel = 32;
    843 		fbi->fbi_pixeltype = WSFB_RGB;
    844 		fbi->fbi_subtype.fbi_rgbmasks.red_offset = 16;
    845 		fbi->fbi_subtype.fbi_rgbmasks.red_size = 8;
    846 		fbi->fbi_subtype.fbi_rgbmasks.green_offset = 8;
    847 		fbi->fbi_subtype.fbi_rgbmasks.green_size = 8;
    848 		fbi->fbi_subtype.fbi_rgbmasks.blue_offset = 0;
    849 		fbi->fbi_subtype.fbi_rgbmasks.blue_size = 8;
    850 		fbi->fbi_subtype.fbi_rgbmasks.alpha_size = 0;
    851 		fbi->fbi_fbsize = sc->sc_scr.fbheight * 8192;
    852 		return ret;
    853 	}
    854 
    855 	case WSDISPLAYIO_GCURPOS: {
    856 		struct wsdisplay_curpos *cp = data;
    857 
    858 		cp->x = sc->sc_cursor_x;
    859 		cp->y = sc->sc_cursor_y;
    860 		return 0;
    861 	}
    862 
    863 	case WSDISPLAYIO_SCURPOS: {
    864 		struct wsdisplay_curpos *cp = data;
    865 
    866 		summitfb_move_cursor(sc, cp->x, cp->y);
    867 		return 0;
    868 	}
    869 
    870 	case WSDISPLAYIO_GCURMAX: {
    871 		struct wsdisplay_curpos *cp = data;
    872 
    873 		cp->x = 64;
    874 		cp->y = 64;
    875 		return 0;
    876 	}
    877 
    878 	case WSDISPLAYIO_SCURSOR: {
    879 		struct wsdisplay_cursor *cursor = data;
    880 
    881 		return summitfb_do_cursor(sc, cursor);
    882 	}
    883 
    884 	case WSDISPLAYIO_SVIDEO:
    885 		summitfb_set_video(sc, *(int *)data);
    886 		return 0;
    887 	case WSDISPLAYIO_GVIDEO:
    888 		*(u_int *)data = sc->sc_video_on ?
    889 		    WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF;
    890 		return 0;
    891 	}
    892 	return EPASSTHROUGH;
    893 }
    894 
    895 static paddr_t
    896 summitfb_mmap(void *v, void *vs, off_t offset, int prot)
    897 {
    898 	struct vcons_data *vd = v;
    899 	struct summitfb_softc *sc = vd->cookie;
    900 	struct sti_rom *rom = sc->sc_base.sc_rom;
    901 	paddr_t pa = -1;
    902 
    903 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)
    904 		return -1;
    905 
    906 	if (offset >= 0 && offset < 0x01000000) {
    907 		/* framebuffer */
    908 		pa = bus_space_mmap(rom->memt, sc->sc_scr.fbaddr, offset,
    909 		    prot, BUS_SPACE_MAP_LINEAR);
    910 	} else if (offset >= 0x80000000 && offset < 0x81000000) {
    911 		/* blitter registers etc. */
    912 		pa = bus_space_mmap(rom->memt, rom->regh[0],
    913 		    offset - 0x80000000, prot, BUS_SPACE_MAP_LINEAR);
    914 	}
    915 
    916 	return pa;
    917 }
    918 
    919 static void
    920 summitfb_init_screen(void *cookie, struct vcons_screen *scr,
    921     int existing, long *defattr)
    922 {
    923 	struct summitfb_softc *sc = cookie;
    924 	struct rasops_info *ri = &scr->scr_ri;
    925 
    926 	ri->ri_depth = 8;
    927 	ri->ri_width = sc->sc_width;
    928 	ri->ri_height = sc->sc_height;
    929 	ri->ri_stride = 2048;
    930 	ri->ri_flg = RI_CENTER | RI_8BIT_IS_RGB
    931 	    | RI_ENABLE_ALPHA | RI_PREFER_ALPHA
    932 	    ;
    933 
    934 	ri->ri_bits = (void *)sc->sc_scr.fbaddr;
    935 	rasops_init(ri, 0, 0);
    936 	ri->ri_caps = WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE |
    937 	    WSSCREEN_RESIZE;
    938 	scr->scr_flags |= VCONS_LOADFONT;
    939 
    940 	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
    941 	    sc->sc_width / ri->ri_font->fontwidth);
    942 
    943 	ri->ri_hw = scr;
    944 
    945 	ri->ri_ops.copyrows = summitfb_copyrows;
    946 	ri->ri_ops.copycols = summitfb_copycols;
    947 	ri->ri_ops.eraserows = summitfb_eraserows;
    948 	ri->ri_ops.erasecols = summitfb_erasecols;
    949 	ri->ri_ops.cursor = summitfb_cursor;
    950 	sc->sc_font = NULL;
    951 	if (FONT_IS_ALPHA(ri->ri_font)) {
    952 		ri->ri_ops.putchar = summitfb_putchar_aa;
    953 	} else
    954 		ri->ri_ops.putchar = summitfb_putchar;
    955 }
    956 
    957 static int
    958 summitfb_putcmap(struct summitfb_softc *sc, struct wsdisplay_cmap *cm)
    959 {
    960 	u_char *r, *g, *b;
    961 	u_int index = cm->index;
    962 	u_int count = cm->count;
    963 	int i, error;
    964 	u_char rbuf[256], gbuf[256], bbuf[256];
    965 
    966 	if (cm->index >= 256 || cm->count > 256 ||
    967 	    (cm->index + cm->count) > 256)
    968 		return EINVAL;
    969 	error = copyin(cm->red, &rbuf[index], count);
    970 	if (error)
    971 		return error;
    972 	error = copyin(cm->green, &gbuf[index], count);
    973 	if (error)
    974 		return error;
    975 	error = copyin(cm->blue, &bbuf[index], count);
    976 	if (error)
    977 		return error;
    978 
    979 	memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
    980 	memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
    981 	memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
    982 
    983 	r = &sc->sc_cmap_red[index];
    984 	g = &sc->sc_cmap_green[index];
    985 	b = &sc->sc_cmap_blue[index];
    986 
    987 	for (i = 0; i < count; i++) {
    988 		summitfb_putpalreg(sc, index, *r, *g, *b);
    989 		index++;
    990 		r++, g++, b++;
    991 	}
    992 	return 0;
    993 }
    994 
    995 static int
    996 summitfb_getcmap(struct summitfb_softc *sc, struct wsdisplay_cmap *cm)
    997 {
    998 	u_int index = cm->index;
    999 	u_int count = cm->count;
   1000 	int error;
   1001 
   1002 	if (index >= 255 || count > 256 || index + count > 256)
   1003 		return EINVAL;
   1004 
   1005 	error = copyout(&sc->sc_cmap_red[index],   cm->red,   count);
   1006 	if (error)
   1007 		return error;
   1008 	error = copyout(&sc->sc_cmap_green[index], cm->green, count);
   1009 	if (error)
   1010 		return error;
   1011 	error = copyout(&sc->sc_cmap_blue[index],  cm->blue,  count);
   1012 	if (error)
   1013 		return error;
   1014 
   1015 	return 0;
   1016 }
   1017 
   1018 static void
   1019 summitfb_restore_palette(struct summitfb_softc *sc)
   1020 {
   1021 	uint8_t cmap[768];
   1022 	int i, j;
   1023 
   1024 	j = 0;
   1025 	rasops_get_cmap(&sc->sc_console_screen.scr_ri, cmap, sizeof(cmap));
   1026 	for (i = 0; i < 256; i++) {
   1027 		sc->sc_cmap_red[i] = cmap[j];
   1028 		sc->sc_cmap_green[i] = cmap[j + 1];
   1029 		sc->sc_cmap_blue[i] = cmap[j + 2];
   1030 		summitfb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
   1031 		j += 3;
   1032 	}
   1033 	for (i = 0; i < 16; i++) {
   1034 		sc->sc_palette[i] = (rasops_cmap[i * 3] << 16) |
   1035 				    (rasops_cmap[i * 3 + 1] << 8) |
   1036 				     rasops_cmap[i * 3 + 2];
   1037 	}
   1038 
   1039 }
   1040 
   1041 static int
   1042 summitfb_putpalreg(struct summitfb_softc *sc, uint8_t idx,
   1043     uint8_t r, uint8_t g, uint8_t b)
   1044 {
   1045 
   1046 	summitfb_write4(sc, VISFX_COLOR_INDEX, idx);
   1047 	summitfb_write4(sc, VISFX_COLOR_VALUE, (r << 16) | ( g << 8) | b);
   1048 	summitfb_write4(sc, VISFX_COLOR_MASK, 0xff);
   1049 	return 0;
   1050 }
   1051 
   1052 static inline void
   1053 summitfb_wait_fifo(struct summitfb_softc *sc, uint32_t slots)
   1054 {
   1055 	uint32_t reg;
   1056 
   1057 	do {
   1058 		reg = summitfb_read4(sc, VISFX_FIFO);
   1059 	} while (reg < slots);
   1060 }
   1061 
   1062 static void
   1063 summitfb_clearfb(struct summitfb_softc *sc)
   1064 {
   1065 	summitfb_write_mode(sc, OTC32 | BIN8F | BUFBL | BUFFL | 0x8c0);
   1066 	summitfb_wait_fifo(sc, 10);
   1067 	summitfb_write4(sc, VISFX_IBO, RopSrc);
   1068 	summitfb_write4(sc, VISFX_FG_COLOUR, 0);
   1069 	summitfb_write4(sc, VISFX_START, 0);
   1070 	summitfb_write4(sc, VISFX_SIZE, (sc->sc_width << 16) | sc->sc_height);
   1071 }
   1072 
   1073 static void
   1074 summitfb_rectfill(struct summitfb_softc *sc, int x, int y, int wi, int he,
   1075     uint32_t bg)
   1076 {
   1077 
   1078 	summitfb_write_mode(sc, VISFX_WRITE_MODE_FILL);
   1079 	summitfb_wait_fifo(sc, 10);
   1080 	summitfb_write4(sc, VISFX_IBO, RopSrc);
   1081 	summitfb_write4(sc, VISFX_FG_COLOUR, bg);
   1082 	summitfb_write4(sc, VISFX_START, (x << 16) | y);
   1083 	summitfb_write4(sc, VISFX_SIZE, (wi << 16) | he);
   1084 }
   1085 
   1086 static void
   1087 summitfb_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
   1088     int he, int rop)
   1089 {
   1090 	struct summitfb_softc *sc = cookie;
   1091 	uint32_t read_mode, write_mode;
   1092 
   1093 	read_mode = OTC04 | BIN8I;
   1094 	write_mode = OTC04 | BIN8I;
   1095 	if (ys >= sc->sc_height) {
   1096 		read_mode |= BUFBL;
   1097 		ys -= sc->sc_height;
   1098 	}
   1099 	if (yd >= sc->sc_height) {
   1100 		write_mode |= BUFBL;
   1101 		yd -= sc->sc_height;
   1102 	}
   1103 	summitfb_write_mode(sc, write_mode);
   1104 	summitfb_read_mode(sc, read_mode);
   1105 	summitfb_wait_fifo(sc, 10);
   1106 	summitfb_write4(sc, VISFX_IBO, rop);
   1107 	summitfb_write4(sc, VISFX_COPY_SRC, (xs << 16) | ys);
   1108 	summitfb_write4(sc, VISFX_COPY_WH, (wi << 16) | he);
   1109 	summitfb_write4(sc, VISFX_COPY_DST, (xd << 16) | yd);
   1110 
   1111 }
   1112 
   1113 static void
   1114 summitfb_nuke_cursor(struct rasops_info *ri)
   1115 {
   1116 	struct vcons_screen *scr = ri->ri_hw;
   1117 	struct summitfb_softc *sc = scr->scr_cookie;
   1118 	int wi, he, x, y;
   1119 
   1120 	if (ri->ri_flg & RI_CURSOR) {
   1121 		wi = ri->ri_font->fontwidth;
   1122 		he = ri->ri_font->fontheight;
   1123 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1124 		y = ri->ri_crow * he + ri->ri_yorigin;
   1125 		summitfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1126 		ri->ri_flg &= ~RI_CURSOR;
   1127 	}
   1128 }
   1129 
   1130 static void
   1131 summitfb_cursor(void *cookie, int on, int row, int col)
   1132 {
   1133 	struct rasops_info *ri = cookie;
   1134 	struct vcons_screen *scr = ri->ri_hw;
   1135 	struct summitfb_softc *sc = scr->scr_cookie;
   1136 	int x, y, wi, he;
   1137 
   1138 	wi = ri->ri_font->fontwidth;
   1139 	he = ri->ri_font->fontheight;
   1140 
   1141 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1142 		if (on) {
   1143 			if (ri->ri_flg & RI_CURSOR) {
   1144 				summitfb_nuke_cursor(ri);
   1145 			}
   1146 			x = col * wi + ri->ri_xorigin;
   1147 			y = row * he + ri->ri_yorigin;
   1148 			summitfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1149 			ri->ri_flg |= RI_CURSOR;
   1150 		}
   1151 		ri->ri_crow = row;
   1152 		ri->ri_ccol = col;
   1153 	} else {
   1154 		ri->ri_crow = row;
   1155 		ri->ri_ccol = col;
   1156 		ri->ri_flg &= ~RI_CURSOR;
   1157 	}
   1158 
   1159 }
   1160 
   1161 static void
   1162 summitfb_putchar(void *cookie, int row, int col, u_int c, long attr)
   1163 {
   1164 	struct rasops_info *ri = cookie;
   1165 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1166 	struct vcons_screen *scr = ri->ri_hw;
   1167 	struct summitfb_softc *sc = scr->scr_cookie;
   1168 	void *data;
   1169 	int i, x, y, wi, he;
   1170 	uint32_t bg, fg, mask;
   1171 
   1172 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1173 		return;
   1174 
   1175 	if (!CHAR_IN_FONT(c, font))
   1176 		return;
   1177 
   1178 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1179 		ri->ri_flg &= ~RI_CURSOR;
   1180 	}
   1181 
   1182 	wi = font->fontwidth;
   1183 	he = font->fontheight;
   1184 
   1185 	x = ri->ri_xorigin + col * wi;
   1186 	y = ri->ri_yorigin + row * he;
   1187 
   1188 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1189 
   1190 	/* if we're drawing a space we're done here */
   1191 	if (c == 0x20) {
   1192 		summitfb_rectfill(sc, x, y, wi, he, bg);
   1193 		return;
   1194 	}
   1195 
   1196 	fg = ri->ri_devcmap[(attr >> 24) & 0x0f];
   1197 
   1198 	summitfb_write_mode(sc, VISFX_WRITE_MODE_EXPAND);
   1199 	summitfb_wait_fifo(sc, 12);
   1200 	summitfb_write4(sc, VISFX_IBO, RopSrc);
   1201 	summitfb_write4(sc, VISFX_FG_COLOUR, fg);
   1202 	summitfb_write4(sc, VISFX_BG_COLOUR, bg);
   1203 	mask = 0xffffffff << (32 - wi);
   1204 	summitfb_write4(sc, VISFX_PIXEL_MASK, mask);
   1205 	/* not a tpyo, coordinates *are* backwards for this register */
   1206 	summitfb_write4(sc, VISFX_VRAM_WRITE_DEST, (y << 16) | x);
   1207 
   1208 	data = WSFONT_GLYPH(c, font);
   1209 
   1210 	if (ri->ri_font->stride == 1) {
   1211 		uint8_t *data8 = data;
   1212 		for (i = 0; i < he; i++) {
   1213 			mask = *data8;
   1214 			summitfb_write4(sc, VISFX_VRAM_WRITE_DATA_INCRY,
   1215 			    mask << 24);
   1216 			data8++;
   1217 		}
   1218 	} else {
   1219 		uint16_t *data16 = data;
   1220 		for (i = 0; i < he; i++) {
   1221 			mask = *data16;
   1222 			summitfb_write4(sc, VISFX_VRAM_WRITE_DATA_INCRY,
   1223 			    mask << 16);
   1224 			data16++;
   1225 		}
   1226 	}
   1227 }
   1228 
   1229 static void
   1230 summitfb_putchar_aa(void *cookie, int row, int col, u_int c, long attr)
   1231 {
   1232 	struct rasops_info *ri = cookie;
   1233 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1234 	struct vcons_screen *scr = ri->ri_hw;
   1235 	struct summitfb_softc *sc = scr->scr_cookie;
   1236 	int x, y, wi, he, rv = GC_NOPE, i, j;
   1237 	uint32_t bg, fg, tmp;
   1238 	uint8_t *data;
   1239 
   1240 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1241 		return;
   1242 
   1243 	if (!CHAR_IN_FONT(c, font))
   1244 		return;
   1245 
   1246 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1247 		ri->ri_flg &= ~RI_CURSOR;
   1248 	}
   1249 
   1250 	wi = font->fontwidth;
   1251 	he = font->fontheight;
   1252 
   1253 	x = ri->ri_xorigin + col * wi;
   1254 	y = ri->ri_yorigin + row * he;
   1255 
   1256 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1257 
   1258 	if (c == 0x20) {
   1259 		summitfb_rectfill(sc, x, y, wi, he, bg);
   1260 		return;
   1261 	}
   1262 
   1263 	rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
   1264 	if (rv == GC_OK)
   1265 		return;
   1266 
   1267 	/*
   1268 	 * first we clear the background - we should be able to use the CBR
   1269 	 * register as constant background but so far I couldn't make that work
   1270 	 */
   1271 	summitfb_rectfill(sc, x, y, wi, he, bg);
   1272 
   1273 	summitfb_write_mode(sc, OTC01 | BIN332F | BUFovl);
   1274 	/* we need the foreground colour as full RGB8 */
   1275 	fg = sc->sc_palette[(attr >> 24) & 0xf];
   1276 
   1277 	/*
   1278 	 * set the blending equation to
   1279 	 * src_color * src_alpha + dst_color * (1 - src_alpha)
   1280 	 */
   1281 	summitfb_write4(sc, VISFX_IBO,
   1282 	    IBO_ADD | SRC(IBO_SRC) | DST(IBO_ONE_MINUS_SRC));
   1283 
   1284 	/* get the glyph */
   1285 	data = WSFONT_GLYPH(c, font);
   1286 	for (i = 0; i < he; i++) {
   1287 		/*
   1288 		 * make some room in the pipeline
   1289 		 * with just plain ROPs we can just hammer the FIFO without
   1290 		 * having to worry about overflowing it but I suspect with
   1291 		 * alpha blending enabled things may be a little slower
   1292 		 */
   1293 		summitfb_wait_fifo(sc, wi * 2);
   1294 		/* start a new line */
   1295 		summitfb_write4(sc, VISFX_VRAM_WRITE_DEST, ((y + i) << 16) | x);
   1296 		for (j = 0; j < wi; j++) {
   1297 			tmp = *data;
   1298 			/* alpha & RGB -> ARGB */
   1299 			summitfb_write4(sc, VISFX_VRAM_WRITE_DATA_INCRX,
   1300 			    (tmp << 24) | fg);
   1301 			data++;
   1302 		}
   1303 	}
   1304 
   1305 	if (rv == GC_ADD)
   1306 		glyphcache_add(&sc->sc_gc, c, x, y);
   1307 }
   1308 
   1309 static void
   1310 summitfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1311 {
   1312 	struct rasops_info *ri = cookie;
   1313 	struct vcons_screen *scr = ri->ri_hw;
   1314 	struct summitfb_softc *sc = scr->scr_cookie;
   1315 	int32_t xs, xd, y, width, height;
   1316 
   1317 	if (sc->sc_locked == 0 && sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1318 
   1319 		if (ri->ri_crow == row &&
   1320 		    ri->ri_ccol >= srccol && ri->ri_ccol < (srccol + ncols) &&
   1321 		    (ri->ri_flg & RI_CURSOR)) {
   1322 			summitfb_nuke_cursor(ri);
   1323 		}
   1324 
   1325 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   1326 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   1327 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1328 		width = ri->ri_font->fontwidth * ncols;
   1329 		height = ri->ri_font->fontheight;
   1330 		summitfb_bitblt(sc, xs, y, xd, y, width, height, RopSrc);
   1331 
   1332 		if (ri->ri_crow == row &&
   1333 		    ri->ri_ccol >= dstcol && ri->ri_ccol < (dstcol + ncols))
   1334 			ri->ri_flg &= ~RI_CURSOR;
   1335 	}
   1336 }
   1337 
   1338 static void
   1339 summitfb_erasecols(void *cookie, int row, int startcol, int ncols,
   1340     long fillattr)
   1341 {
   1342 	struct rasops_info *ri = cookie;
   1343 	struct vcons_screen *scr = ri->ri_hw;
   1344 	struct summitfb_softc *sc = scr->scr_cookie;
   1345 	int32_t x, y, width, height, fg, bg, ul;
   1346 
   1347 	if (sc->sc_locked == 0 && sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1348 		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   1349 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1350 		width = ri->ri_font->fontwidth * ncols;
   1351 		height = ri->ri_font->fontheight;
   1352 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   1353 
   1354 		summitfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
   1355 
   1356 		if (ri->ri_crow == row &&
   1357 		    ri->ri_ccol >= startcol &&
   1358 		    ri->ri_ccol < (startcol + ncols))
   1359 			ri->ri_flg &= ~RI_CURSOR;
   1360 	}
   1361 }
   1362 
   1363 static void
   1364 summitfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   1365 {
   1366 	struct rasops_info *ri = cookie;
   1367 	struct vcons_screen *scr = ri->ri_hw;
   1368 	struct summitfb_softc *sc = scr->scr_cookie;
   1369 	int32_t x, ys, yd, width, height;
   1370 
   1371 	if (sc->sc_locked == 0 && sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1372 
   1373 		if (ri->ri_crow >= srcrow && ri->ri_crow < (srcrow + nrows) &&
   1374 		    (ri->ri_flg & RI_CURSOR)) {
   1375 			summitfb_nuke_cursor(ri);
   1376 		}
   1377 
   1378 		x = ri->ri_xorigin;
   1379 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   1380 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   1381 		width = ri->ri_emuwidth;
   1382 		height = ri->ri_font->fontheight * nrows;
   1383 		summitfb_bitblt(sc, x, ys, x, yd, width, height, RopSrc);
   1384 
   1385 		if (ri->ri_crow >= dstrow && ri->ri_crow < (dstrow + nrows))
   1386 			ri->ri_flg &= ~RI_CURSOR;
   1387 	}
   1388 }
   1389 
   1390 static void
   1391 summitfb_eraserows(void *cookie, int row, int nrows, long fillattr)
   1392 {
   1393 	struct rasops_info *ri = cookie;
   1394 	struct vcons_screen *scr = ri->ri_hw;
   1395 	struct summitfb_softc *sc = scr->scr_cookie;
   1396 	int32_t x, y, width, height, fg, bg, ul;
   1397 
   1398 	if (sc->sc_locked == 0 && sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1399 		x = ri->ri_xorigin;
   1400 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1401 		width = ri->ri_emuwidth;
   1402 		height = ri->ri_font->fontheight * nrows;
   1403 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   1404 
   1405 		summitfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
   1406 
   1407 		if (ri->ri_crow >= row && ri->ri_crow < (row + nrows))
   1408 			ri->ri_flg &= ~RI_CURSOR;
   1409 	}
   1410 }
   1411 
   1412 static void
   1413 summitfb_move_cursor(struct summitfb_softc *sc, int x, int y)
   1414 {
   1415 	uint32_t pos;
   1416 
   1417 	sc->sc_cursor_x = x;
   1418 	x -= sc->sc_hot_x;
   1419 	sc->sc_cursor_y = y;
   1420 	y -= sc->sc_hot_y;
   1421 
   1422 	if (x < 0)
   1423 		x = 0x1000 - x;
   1424 	if (y < 0)
   1425 		y = 0x1000 - y;
   1426 	pos = (x << 16) | y;
   1427 	if (sc->sc_enabled)
   1428 		pos |= 0x80000000;
   1429 	summitfb_write4(sc, VISFX_CURSOR_POS, pos);
   1430 }
   1431 
   1432 static int
   1433 summitfb_do_cursor(struct summitfb_softc *sc, struct wsdisplay_cursor *cur)
   1434 {
   1435 
   1436 	if (cur->which & WSDISPLAY_CURSOR_DOCUR) {
   1437 		sc->sc_enabled = cur->enable;
   1438 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1439 	}
   1440 	if (cur->which & WSDISPLAY_CURSOR_DOHOT) {
   1441 		sc->sc_hot_x = cur->hot.x;
   1442 		sc->sc_hot_y = cur->hot.y;
   1443 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1444 	}
   1445 	if (cur->which & WSDISPLAY_CURSOR_DOPOS) {
   1446 		summitfb_move_cursor(sc, cur->pos.x, cur->pos.y);
   1447 	}
   1448 	if (cur->which & WSDISPLAY_CURSOR_DOCMAP) {
   1449 		uint32_t rgb;
   1450 		uint8_t r[2], g[2], b[2];
   1451 
   1452 		copyin(cur->cmap.blue, b, 2);
   1453 		copyin(cur->cmap.green, g, 2);
   1454 		copyin(cur->cmap.red, r, 2);
   1455 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0);
   1456 		rgb = r[0] << 16 | g[0] << 8 | b[0];
   1457 		summitfb_write4(sc, VISFX_CURSOR_BG, rgb);
   1458 		rgb = r[1] << 16 | g[1] << 8 | b[1];
   1459 		summitfb_write4(sc, VISFX_CURSOR_FG, rgb);
   1460 
   1461 	}
   1462 	if (cur->which & WSDISPLAY_CURSOR_DOSHAPE) {
   1463 
   1464 		uint32_t buffer[128], latch, tmp;
   1465 		int i;
   1466 
   1467 		copyin(cur->mask, buffer, 512);
   1468 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0);
   1469 		for (i = 0; i < 128; i += 2) {
   1470 			latch = 0;
   1471 			tmp = buffer[i] & 0x80808080;
   1472 			latch |= tmp >> 7;
   1473 			tmp = buffer[i] & 0x40404040;
   1474 			latch |= tmp >> 5;
   1475 			tmp = buffer[i] & 0x20202020;
   1476 			latch |= tmp >> 3;
   1477 			tmp = buffer[i] & 0x10101010;
   1478 			latch |= tmp >> 1;
   1479 			tmp = buffer[i] & 0x08080808;
   1480 			latch |= tmp << 1;
   1481 			tmp = buffer[i] & 0x04040404;
   1482 			latch |= tmp << 3;
   1483 			tmp = buffer[i] & 0x02020202;
   1484 			latch |= tmp << 5;
   1485 			tmp = buffer[i] & 0x01010101;
   1486 			latch |= tmp << 7;
   1487 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1488 			latch = 0;
   1489 			tmp = buffer[i + 1] & 0x80808080;
   1490 			latch |= tmp >> 7;
   1491 			tmp = buffer[i + 1] & 0x40404040;
   1492 			latch |= tmp >> 5;
   1493 			tmp = buffer[i + 1] & 0x20202020;
   1494 			latch |= tmp >> 3;
   1495 			tmp = buffer[i + 1] & 0x10101010;
   1496 			latch |= tmp >> 1;
   1497 			tmp = buffer[i + 1] & 0x08080808;
   1498 			latch |= tmp << 1;
   1499 			tmp = buffer[i + 1] & 0x04040404;
   1500 			latch |= tmp << 3;
   1501 			tmp = buffer[i + 1] & 0x02020202;
   1502 			latch |= tmp << 5;
   1503 			tmp = buffer[i + 1] & 0x01010101;
   1504 			latch |= tmp << 7;
   1505 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1506 		}
   1507 
   1508 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0x80);
   1509 		copyin(cur->image, buffer, 512);
   1510 		for (i = 0; i < 128; i += 2) {
   1511 			latch = 0;
   1512 			tmp = buffer[i] & 0x80808080;
   1513 			latch |= tmp >> 7;
   1514 			tmp = buffer[i] & 0x40404040;
   1515 			latch |= tmp >> 5;
   1516 			tmp = buffer[i] & 0x20202020;
   1517 			latch |= tmp >> 3;
   1518 			tmp = buffer[i] & 0x10101010;
   1519 			latch |= tmp >> 1;
   1520 			tmp = buffer[i] & 0x08080808;
   1521 			latch |= tmp << 1;
   1522 			tmp = buffer[i] & 0x04040404;
   1523 			latch |= tmp << 3;
   1524 			tmp = buffer[i] & 0x02020202;
   1525 			latch |= tmp << 5;
   1526 			tmp = buffer[i] & 0x01010101;
   1527 			latch |= tmp << 7;
   1528 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1529 			latch = 0;
   1530 			tmp = buffer[i + 1] & 0x80808080;
   1531 			latch |= tmp >> 7;
   1532 			tmp = buffer[i + 1] & 0x40404040;
   1533 			latch |= tmp >> 5;
   1534 			tmp = buffer[i + 1] & 0x20202020;
   1535 			latch |= tmp >> 3;
   1536 			tmp = buffer[i + 1] & 0x10101010;
   1537 			latch |= tmp >> 1;
   1538 			tmp = buffer[i + 1] & 0x08080808;
   1539 			latch |= tmp << 1;
   1540 			tmp = buffer[i + 1] & 0x04040404;
   1541 			latch |= tmp << 3;
   1542 			tmp = buffer[i + 1] & 0x02020202;
   1543 			latch |= tmp << 5;
   1544 			tmp = buffer[i + 1] & 0x01010101;
   1545 			latch |= tmp << 7;
   1546 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1547 		}
   1548 	}
   1549 
   1550 	return 0;
   1551 }
   1552 
   1553 static void
   1554 summitfb_set_video(struct summitfb_softc *sc, int on)
   1555 {
   1556 
   1557 	if (sc->sc_video_on == on)
   1558 		return;
   1559 
   1560 	sc->sc_video_on = on;
   1561 
   1562 	summitfb_wait(sc);
   1563 	if (on) {
   1564 		summitfb_write4(sc, VISFX_MPC, MPC_VIDEO_ON);
   1565 	} else {
   1566 		summitfb_write4(sc, VISFX_MPC, MPC_VSYNC_OFF | MPC_HSYNC_OFF);
   1567 	}
   1568 }
   1569 
   1570 static void
   1571 summitfb_copyfont(struct summitfb_softc *sc)
   1572 {
   1573 	struct sti_font *fp = &sc->sc_scr.scr_curfont;
   1574 	uint8_t *font = sc->sc_scr.scr_romfont;
   1575 	uint8_t *fontbuf, *fontdata, *src, *dst;
   1576 	struct wsdisplay_font *f;
   1577 	int bufsize, i, si;
   1578 
   1579 	if (font == NULL)
   1580 		return;
   1581 
   1582 	bufsize = sizeof(struct wsdisplay_font) + 32 + fp->bpc * (fp->last - fp->first);
   1583 	DPRINTF(("%s: %dx%d %d\n", __func__, fp->width, fp->height, bufsize));
   1584 	fontbuf = kmem_alloc(bufsize, KM_SLEEP);
   1585 	f = (struct wsdisplay_font *)fontbuf;
   1586 	f->name = fontbuf + sizeof(struct wsdisplay_font);
   1587 	fontdata = fontbuf + sizeof(struct wsdisplay_font) + 32;
   1588 	strcpy(fontbuf + sizeof(struct wsdisplay_font), "HP ROM");
   1589 	f->firstchar = fp->first;
   1590 	f->numchars = (fp->last + 1) - fp->first;
   1591 	f->encoding = WSDISPLAY_FONTENC_ISO;
   1592 	f->fontwidth = fp->width;
   1593 	f->fontheight = fp->height;
   1594 	f->stride = (fp->width + 7) >> 3;
   1595 	f->bitorder = WSDISPLAY_FONTORDER_L2R;
   1596 	f->byteorder = WSDISPLAY_FONTORDER_L2R;
   1597 	f->data = fontdata;
   1598 	/* skip over font struct */
   1599 	font += sizeof(struct sti_font);
   1600 	/* now copy and rearrange the glyphs into ISO order */
   1601 	/* first, copy the characters up to 0x7f */
   1602 	memcpy(fontdata, font, (0x80 - fp->first) * fp->bpc);
   1603 	/* zero 0x80 to 0x9f */
   1604 	memset(fontdata + 0x80 * fp->bpc, 0, 0x20 * fp->bpc);
   1605 	/* rearrange 0xa0 till last */
   1606 	for (i = 0xa0; i < (fp->last + 1); i++) {
   1607 		dst = fontdata + fp->bpc * i;
   1608 		si = sti_unitoroman[i - 0xa0];
   1609 		if (si != 0) {
   1610 			src = font + fp->bpc * si;
   1611 			memcpy(dst, src, fp->bpc);
   1612 		} else {
   1613 			/* no mapping - zero this cell */
   1614 			memset(dst, 0, fp->bpc);
   1615 		}
   1616 	}
   1617 	wsfont_add(f, 0);
   1618 }
   1619