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summitfb.c revision 1.26
      1 /*	$NetBSD: summitfb.c,v 1.26 2025/01/03 13:18:30 skrll 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 1.26 2025/01/03 13:18:30 skrll 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 //#define SUMMITFB_ENABLE_GC
     64 
     65 int	summitfb_match(device_t, cfdata_t, void *);
     66 void	summitfb_attach(device_t, device_t, void *);
     67 
     68 struct	summitfb_softc {
     69 	device_t		sc_dev;
     70 	pci_chipset_tag_t	sc_pc;
     71 	pcitag_t		sc_tag;
     72 
     73 	/* stuff we need in order to use the STI ROM */
     74 	struct sti_softc	sc_base;
     75 	struct sti_screen 	sc_scr;
     76 	bus_space_handle_t	sc_romh;
     77 
     78 	int sc_width, sc_height;
     79 	int sc_locked;
     80 	struct vcons_screen sc_console_screen;
     81 	struct wsscreen_descr sc_defaultscreen_descr;
     82 	const struct wsscreen_descr *sc_screens[1];
     83 	struct wsscreen_list sc_screenlist;
     84 	struct vcons_data vd;
     85 	int sc_mode;
     86 	u_char sc_cmap_red[256];
     87 	u_char sc_cmap_green[256];
     88 	u_char sc_cmap_blue[256];
     89 	uint32_t sc_write_mode;
     90 	/* cursor stuff */
     91 	int sc_cursor_x, sc_cursor_y;
     92 	int sc_hot_x, sc_hot_y, sc_enabled;
     93 	/* font-in-vram */
     94 	struct wsdisplay_font *sc_font;
     95 	int sc_font_start;	/* x of font area */
     96 	int sc_cols;		/* chars per line in font area */
     97 
     98 	int sc_video_on;
     99 #ifdef SUMMITFB_ENABLE_GC
    100 	void (*sc_putchar)(void *, int, int, u_int, long);
    101 	glyphcache sc_gc;
    102 #endif
    103 };
    104 
    105 CFATTACH_DECL_NEW(summitfb, sizeof(struct summitfb_softc),
    106     summitfb_match, summitfb_attach, NULL, NULL);
    107 
    108 int	summitfb_readbar(struct sti_softc *, struct pci_attach_args *, u_int,
    109 	    int);
    110 int	summitfb_check_rom(struct summitfb_softc *, struct pci_attach_args *);
    111 void	summitfb_enable_rom(struct sti_softc *);
    112 void	summitfb_disable_rom(struct sti_softc *);
    113 void	summitfb_enable_rom_internal(struct summitfb_softc *);
    114 void	summitfb_disable_rom_internal(struct summitfb_softc *);
    115 
    116 void 	summitfb_setup(struct summitfb_softc *);
    117 
    118 /* XXX these really need to go into their own header */
    119 int	sti_pci_is_console(struct pci_attach_args *, bus_addr_t *);
    120 int	sti_rom_setup(struct sti_rom *, bus_space_tag_t, bus_space_tag_t,
    121 	    bus_space_handle_t, bus_addr_t *, u_int);
    122 int	sti_screen_setup(struct sti_screen *, int);
    123 void	sti_describe_screen(struct sti_softc *, struct sti_screen *);
    124 
    125 #define PCI_ROM_SIZE(mr)						      \
    126 	(PCI_MAPREG_ROM_ADDR(mr) & -PCI_MAPREG_ROM_ADDR(mr))
    127 
    128 /* wsdisplay stuff */
    129 static int	summitfb_ioctl(void *, void *, u_long, void *, int,
    130 		    struct lwp *);
    131 static paddr_t	summitfb_mmap(void *, void *, off_t, int);
    132 static void	summitfb_init_screen(void *, struct vcons_screen *, int,
    133 		    long *);
    134 
    135 static int	summitfb_putcmap(struct summitfb_softc *,
    136 		    struct wsdisplay_cmap *);
    137 static int 	summitfb_getcmap(struct summitfb_softc *,
    138 		    struct wsdisplay_cmap *);
    139 static void	summitfb_restore_palette(struct summitfb_softc *);
    140 static int 	summitfb_putpalreg(struct summitfb_softc *, uint8_t, uint8_t,
    141 		    uint8_t, uint8_t);
    142 
    143 static inline void summitfb_setup_fb(struct summitfb_softc *);
    144 
    145 static void	summitfb_rectfill(struct summitfb_softc *, int, int, int, int,
    146 		    uint32_t);
    147 static void	summitfb_bitblt(void *, int, int, int, int, int,
    148 		    int, int);
    149 
    150 static void	summitfb_cursor(void *, int, int, int);
    151 static void	summitfb_putchar(void *, int, int, u_int, long);
    152 static void	summitfb_putchar_fast(void *, int, int, u_int, long);
    153 static void	summitfb_loadfont(struct summitfb_softc *);
    154 #ifdef SUMMITFB_ENABLE_GC
    155 static void	summitfb_putchar_aa(void *, int, int, u_int, long);
    156 #endif
    157 static void	summitfb_copycols(void *, int, int, int, int);
    158 static void	summitfb_erasecols(void *, int, int, int, long);
    159 static void	summitfb_copyrows(void *, int, int, int);
    160 static void	summitfb_eraserows(void *, int, int, long);
    161 
    162 static void	summitfb_move_cursor(struct summitfb_softc *, int, int);
    163 static int	summitfb_do_cursor(struct summitfb_softc *,
    164 		    struct wsdisplay_cursor *);
    165 
    166 static void	summitfb_set_video(struct summitfb_softc *, int);
    167 
    168 static void	summitfb_copyfont(struct summitfb_softc *);
    169 
    170 struct wsdisplay_accessops summitfb_accessops = {
    171 	.ioctl = summitfb_ioctl,
    172 	.mmap = summitfb_mmap,
    173 	.alloc_screen = NULL,
    174 	.free_screen = NULL,
    175 	.show_screen = NULL,
    176 	.load_font = NULL,
    177 	.pollc = NULL,
    178 	.scroll = NULL,
    179 };
    180 
    181 static inline void summitfb_wait_fifo(struct summitfb_softc *, uint32_t);
    182 static inline void summitfb_wait(struct summitfb_softc *);
    183 
    184 int	sti_fetchfonts(struct sti_screen *, struct sti_inqconfout *, uint32_t,
    185 	    u_int);
    186 
    187 int
    188 summitfb_match(device_t parent, cfdata_t cf, void *aux)
    189 {
    190 	struct pci_attach_args *paa = aux;
    191 
    192 	if (PCI_VENDOR(paa->pa_id) != PCI_VENDOR_HP)
    193 		return 0;
    194 
    195 	if (PCI_PRODUCT(paa->pa_id) == PCI_PRODUCT_HP_VISUALIZE_FX4)
    196 		return 10;	/* beat out sti at pci */
    197 
    198 	return 0;
    199 }
    200 
    201 static inline uint32_t
    202 summitfb_read4(struct summitfb_softc *sc, uint32_t offset)
    203 {
    204 	struct sti_rom *rom = sc->sc_base.sc_rom;
    205 	bus_space_tag_t memt = rom->memt;
    206 	bus_space_handle_t memh = rom->regh[2];
    207 
    208 	return bus_space_read_stream_4(memt, memh, offset - 0x400000);
    209 }
    210 
    211 static inline void
    212 summitfb_write4(struct summitfb_softc *sc, uint32_t offset, uint32_t val)
    213 {
    214 	struct sti_rom *rom = sc->sc_base.sc_rom;
    215 	bus_space_tag_t memt = rom->memt;
    216 	bus_space_handle_t memh = rom->regh[2];
    217 
    218 	bus_space_write_stream_4(memt, memh, offset - 0x400000, val);
    219 }
    220 
    221 void
    222 summitfb_attach(device_t parent, device_t self, void *aux)
    223 {
    224 	struct summitfb_softc *sc = device_private(self);
    225 	struct pci_attach_args *paa = aux;
    226 	struct sti_rom *rom;
    227 	struct rasops_info *ri;
    228 	struct wsemuldisplaydev_attach_args aa;
    229 	struct sti_dd *dd;
    230 	unsigned long defattr = 0;
    231 	int ret, is_console = 0;
    232 
    233 	sc->sc_dev = self;
    234 
    235 	sc->sc_pc = paa->pa_pc;
    236 	sc->sc_tag = paa->pa_tag;
    237 	sc->sc_base.sc_dev = self;
    238 	sc->sc_base.sc_enable_rom = summitfb_enable_rom;
    239 	sc->sc_base.sc_disable_rom = summitfb_disable_rom;
    240 
    241 	aprint_normal("\n");
    242 
    243 	if (summitfb_check_rom(sc, paa) != 0)
    244 		return;
    245 
    246 	ret = sti_pci_is_console(paa, sc->sc_base. bases);
    247 	if (ret != 0) {
    248 		sc->sc_base.sc_flags |= STI_CONSOLE;
    249 		is_console = 1;
    250 	}
    251 	rom = kmem_zalloc(sizeof(*rom), KM_SLEEP);
    252 	rom->rom_softc = &sc->sc_base;
    253 	ret = sti_rom_setup(rom, paa->pa_iot, paa->pa_memt, sc->sc_romh,
    254 	    sc->sc_base.bases, STI_CODEBASE_MAIN);
    255 	if (ret != 0) {
    256 		kmem_free(rom, sizeof(*rom));
    257 		return;
    258 	}
    259 
    260 	sc->sc_base.sc_rom = rom;
    261 	dd = &rom->rom_dd;
    262 
    263 	sc->sc_scr.scr_rom = sc->sc_base.sc_rom;
    264 	ret = sti_screen_setup(&sc->sc_scr, STI_FBMODE);
    265 
    266 	sti_fetchfonts(&sc->sc_scr, NULL, dd->dd_fntaddr, 0);
    267 	wsfont_init();
    268 	summitfb_copyfont(sc);
    269 
    270 	sc->sc_width = sc->sc_scr.scr_cfg.scr_width;
    271 	sc->sc_height = sc->sc_scr.scr_cfg.scr_height;
    272 	sc->sc_write_mode = 0xffffffff;
    273 
    274 #ifdef SUMMITFB_DEBUG
    275 	sc->sc_height -= 200;
    276 #endif
    277 
    278 	sc->sc_defaultscreen_descr = (struct wsscreen_descr){
    279 		.name = "default",
    280 		.ncols = 0, .nrows = 0,
    281 		.textops = NULL,
    282 		.fontwidth = 8, .fontheight = 16,
    283 		.capabilities = WSSCREEN_WSCOLORS | WSSCREEN_HILIT |
    284 		    WSSCREEN_UNDERLINE | WSSCREEN_RESIZE,
    285 		.modecookie = NULL,
    286 	};
    287 
    288 	sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
    289 	sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
    290 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    291 	sc->sc_locked = 0;
    292 
    293 	vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
    294 	    &summitfb_accessops);
    295 	sc->vd.init_screen = summitfb_init_screen;
    296 #ifdef SUMMITFB_ENABLE_GC
    297 	sc->vd.show_screen_cookie = &sc->sc_gc;
    298 	sc->vd.show_screen_cb = glyphcache_adapt;
    299 #endif
    300 	ri = &sc->sc_console_screen.scr_ri;
    301 
    302 #ifdef SUMMITFB_ENABLE_GC
    303 	sc->sc_gc.gc_bitblt = summitfb_bitblt;
    304 	sc->sc_gc.gc_blitcookie = sc;
    305 	sc->sc_gc.gc_rop = RopSrc;
    306 #endif
    307 
    308 	summitfb_setup(sc);
    309 
    310 	vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, &defattr);
    311 	sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    312 
    313 	sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
    314 	sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
    315 	sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
    316 	sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
    317 
    318 	/*
    319 	 * STI lies to us - it reports a 2048x2048 framebuffer but blitter
    320 	 * ops wrap around below 1024 and we seem to have only about 250
    321 	 * usable columns to the right. Should still be enough to cache
    322 	 * a font or four.
    323 	 * So, the framebuffer seems to be 1536x1024, which is odd since the
    324 	 * FX4 is supposed to support resolutions higher than 1280x1024.
    325 	 * I guess video memory is allocated in 512x512 chunks
    326 	 */
    327 #ifdef SUMMITFB_ENABLE_GC
    328 	glyphcache_init_x(&sc->sc_gc, sc->sc_width, 0,
    329 	    sc->sc_height,
    330 	    1536 - sc->sc_width - 4,
    331 	    ri->ri_font->fontwidth,
    332 	    ri->ri_font->fontheight,
    333 	    defattr);
    334 #endif
    335 
    336 	summitfb_restore_palette(sc);
    337 	summitfb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height,
    338 	    ri->ri_devcmap[(defattr >> 16) & 0xff]);
    339 	summitfb_setup_fb(sc);
    340 
    341 	if (is_console) {
    342 		wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
    343 		    defattr);
    344 
    345 		vcons_replay_msgbuf(&sc->sc_console_screen);
    346 	}
    347 
    348 	aprint_normal_dev(sc->sc_dev, "%s at %dx%d\n", sc->sc_scr.name,
    349 	    sc->sc_width, sc->sc_height);
    350 
    351 	/* no suspend/resume support yet */
    352 	pmf_device_register(sc->sc_dev, NULL, NULL);
    353 
    354 	aa.console = is_console;
    355 	aa.scrdata = &sc->sc_screenlist;
    356 	aa.accessops = &summitfb_accessops;
    357 	aa.accesscookie = &sc->vd;
    358 
    359 	config_found(sc->sc_dev, &aa, wsemuldisplaydevprint, CFARGS_NONE);
    360 }
    361 
    362 /*
    363  * Grovel the STI ROM image.
    364  */
    365 int
    366 summitfb_check_rom(struct summitfb_softc *spc, struct pci_attach_args *pa)
    367 {
    368 	struct sti_softc *sc = &spc->sc_base;
    369 	pcireg_t address, mask;
    370 	bus_space_handle_t romh;
    371 	bus_size_t romsize, subsize, stiromsize;
    372 	bus_addr_t selected, offs, suboffs;
    373 	uint32_t tmp;
    374 	int i;
    375 	int rc;
    376 
    377 	/* sort of inline sti_pci_enable_rom(sc) */
    378 	address = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    379 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM,
    380 	    ~PCI_MAPREG_ROM_ENABLE);
    381 	mask = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    382 	address |= PCI_MAPREG_ROM_ENABLE;
    383 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM, address);
    384 	sc->sc_flags |= STI_ROM_ENABLED;
    385 
    386 	/*
    387 	 * Map the complete ROM for now.
    388 	 */
    389 	romsize = PCI_ROM_SIZE(mask);
    390 	DPRINTF(("%s: mapping rom @ %lx for %lx\n", __func__,
    391 	    (long)PCI_MAPREG_ROM_ADDR(address), (long)romsize));
    392 
    393 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address), romsize,
    394 	    0, &romh);
    395 	if (rc != 0) {
    396 		aprint_error_dev(sc->sc_dev, "can't map PCI ROM (%d)\n", rc);
    397 		goto fail2;
    398 	}
    399 
    400 	summitfb_disable_rom_internal(spc);
    401 
    402 	/*
    403 	 * Iterate over the ROM images, pick the best candidate.
    404 	 */
    405 	selected = (bus_addr_t)-1;
    406 	for (offs = 0; offs < romsize; offs += subsize) {
    407 		summitfb_enable_rom_internal(spc);
    408 		/*
    409 		 * Check for a valid ROM header.
    410 		 */
    411 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 0);
    412 		tmp = le32toh(tmp);
    413 		if (tmp != 0x55aa0000) {
    414 			summitfb_disable_rom_internal(spc);
    415 			if (offs == 0) {
    416 				aprint_error_dev(sc->sc_dev,
    417 				    "invalid PCI ROM header signature"
    418 				    " (%08x)\n", tmp);
    419 				rc = EINVAL;
    420 			}
    421 			break;
    422 		}
    423 
    424 		/*
    425 		 * Check ROM type.
    426 		 */
    427 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 4);
    428 		tmp = le32toh(tmp);
    429 		if (tmp != 0x00000001) {	/* 1 == STI ROM */
    430 			summitfb_disable_rom_internal(spc);
    431 			if (offs == 0) {
    432 				aprint_error_dev(sc->sc_dev,
    433 				    "invalid PCI ROM type (%08x)\n", tmp);
    434 				rc = EINVAL;
    435 			}
    436 			break;
    437 		}
    438 
    439 		subsize = (bus_addr_t)bus_space_read_2(pa->pa_memt, romh,
    440 		    offs + 0x0c);
    441 		subsize <<= 9;
    442 
    443 #ifdef SUMMITFB_DEBUG
    444 		summitfb_disable_rom_internal(spc);
    445 		DPRINTF(("ROM offset %08x size %08x type %08x",
    446 		    (u_int)offs, (u_int)subsize, tmp));
    447 		summitfb_enable_rom_internal(spc);
    448 #endif
    449 
    450 		/*
    451 		 * Check for a valid ROM data structure.
    452 		 * We do not need it except to know what architecture the ROM
    453 		 * code is for.
    454 		 */
    455 
    456 		suboffs = offs + bus_space_read_2(pa->pa_memt, romh,
    457 		    offs + 0x18);
    458 		tmp = bus_space_read_4(pa->pa_memt, romh, suboffs + 0);
    459 		tmp = le32toh(tmp);
    460 		if (tmp != 0x50434952) {	/* PCIR */
    461 			summitfb_disable_rom_internal(spc);
    462 			if (offs == 0) {
    463 				aprint_error_dev(sc->sc_dev, "invalid PCI data"
    464 				    " signature (%08x)\n", tmp);
    465 				rc = EINVAL;
    466 			} else {
    467 				DPRINTF((" invalid PCI data signature %08x\n",
    468 				    tmp));
    469 				continue;
    470 			}
    471 		}
    472 
    473 		tmp = bus_space_read_1(pa->pa_memt, romh, suboffs + 0x14);
    474 		summitfb_disable_rom_internal(spc);
    475 		DPRINTF((" code %02x", tmp));
    476 
    477 		switch (tmp) {
    478 #ifdef __hppa__
    479 		case 0x10:
    480 			if (selected == (bus_addr_t)-1)
    481 				selected = offs;
    482 			break;
    483 #endif
    484 #ifdef __i386__
    485 		case 0x00:
    486 			if (selected == (bus_addr_t)-1)
    487 				selected = offs;
    488 			break;
    489 #endif
    490 		default:
    491 			DPRINTF((" (wrong architecture)"));
    492 			break;
    493 		}
    494 		DPRINTF(("%s\n", selected == offs ? " -> SELECTED" : ""));
    495 	}
    496 
    497 	if (selected == (bus_addr_t)-1) {
    498 		if (rc == 0) {
    499 			aprint_error_dev(sc->sc_dev, "found no ROM with "
    500 			    "correct microcode architecture\n");
    501 			rc = ENOEXEC;
    502 		}
    503 		goto fail;
    504 	}
    505 
    506 	/*
    507 	 * Read the STI region BAR assignments.
    508 	 */
    509 
    510 	summitfb_enable_rom_internal(spc);
    511 	offs = selected + bus_space_read_2(pa->pa_memt, romh, selected + 0x0e);
    512 	for (i = 0; i < STI_REGION_MAX; i++) {
    513 		rc = summitfb_readbar(sc, pa, i,
    514 		    bus_space_read_1(pa->pa_memt, romh, offs + i));
    515 		if (rc != 0)
    516 			goto fail;
    517 	}
    518 
    519 	/*
    520 	 * Find out where the STI ROM itself lies, and its size.
    521 	 */
    522 
    523 	offs = selected +
    524 	    bus_space_read_4(pa->pa_memt, romh, selected + 0x08);
    525 	stiromsize = bus_space_read_4(pa->pa_memt, romh, offs + 0x18);
    526 	stiromsize = le32toh(stiromsize);
    527 	summitfb_disable_rom_internal(spc);
    528 
    529 	/*
    530 	 * Replace our mapping with a smaller mapping of only the area
    531 	 * we are interested in.
    532 	 */
    533 
    534 	DPRINTF(("remapping rom @ %lx for %lx\n",
    535 	    (long)(PCI_MAPREG_ROM_ADDR(address) + offs), (long)stiromsize));
    536 	bus_space_unmap(pa->pa_memt, romh, romsize);
    537 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address) + offs,
    538 	    stiromsize, 0, &spc->sc_romh);
    539 	if (rc != 0) {
    540 		aprint_error_dev(sc->sc_dev, "can't map STI ROM (%d)\n",
    541 		    rc);
    542 		goto fail2;
    543 	}
    544  	summitfb_disable_rom_internal(spc);
    545 	sc->sc_flags &= ~STI_ROM_ENABLED;
    546 
    547 	return 0;
    548 
    549 fail:
    550 	bus_space_unmap(pa->pa_memt, romh, romsize);
    551 fail2:
    552 	summitfb_disable_rom_internal(spc);
    553 
    554 	return rc;
    555 }
    556 
    557 /*
    558  * Decode a BAR register.
    559  */
    560 int
    561 summitfb_readbar(struct sti_softc *sc, struct pci_attach_args *pa,
    562     u_int region, int bar)
    563 {
    564 	bus_addr_t addr;
    565 	bus_size_t size;
    566 	uint32_t cf;
    567 	int rc;
    568 
    569 	if (bar == 0) {
    570 		sc->bases[region] = 0;
    571 		return 0;
    572 	}
    573 
    574 #ifdef DIAGNOSTIC
    575 	if (bar < PCI_MAPREG_START || bar > PCI_MAPREG_PPB_END) {
    576 		summitfb_disable_rom(sc);
    577 		printf("%s: unexpected bar %02x for region %d\n",
    578 		    device_xname(sc->sc_dev), bar, region);
    579 		summitfb_enable_rom(sc);
    580 	}
    581 #endif
    582 
    583 	cf = pci_conf_read(pa->pa_pc, pa->pa_tag, bar);
    584 
    585 	rc = pci_mapreg_info(pa->pa_pc, pa->pa_tag, bar, PCI_MAPREG_TYPE(cf),
    586 	    &addr, &size, NULL);
    587 
    588 	if (rc != 0) {
    589 		summitfb_disable_rom(sc);
    590 		aprint_error_dev(sc->sc_dev, "invalid bar %02x"
    591 		    " for region %d\n",
    592 		    bar, region);
    593 		summitfb_enable_rom(sc);
    594 		return rc;
    595 	}
    596 
    597 	sc->bases[region] = addr;
    598 	return 0;
    599 }
    600 
    601 /*
    602  * Enable PCI ROM.
    603  */
    604 void
    605 summitfb_enable_rom_internal(struct summitfb_softc *spc)
    606 {
    607 	pcireg_t address;
    608 
    609 	KASSERT(spc != NULL);
    610 
    611 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    612 	address |= PCI_MAPREG_ROM_ENABLE;
    613 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    614 }
    615 
    616 void
    617 summitfb_enable_rom(struct sti_softc *sc)
    618 {
    619 	struct summitfb_softc *spc = device_private(sc->sc_dev);
    620 
    621 	if (!ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    622 		summitfb_enable_rom_internal(spc);
    623 	}
    624 	SET(sc->sc_flags, STI_ROM_ENABLED);
    625 }
    626 
    627 /*
    628  * Disable PCI ROM.
    629  */
    630 void
    631 summitfb_disable_rom_internal(struct summitfb_softc *spc)
    632 {
    633 	pcireg_t address;
    634 
    635 	KASSERT(spc != NULL);
    636 
    637 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    638 	address &= ~PCI_MAPREG_ROM_ENABLE;
    639 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    640 }
    641 
    642 void
    643 summitfb_disable_rom(struct sti_softc *sc)
    644 {
    645 	struct summitfb_softc *spc = device_private(sc->sc_dev);
    646 
    647 	if (ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    648 		summitfb_disable_rom_internal(spc);
    649 	}
    650 	CLR(sc->sc_flags, STI_ROM_ENABLED);
    651 }
    652 
    653 static inline void
    654 summitfb_wait(struct summitfb_softc *sc)
    655 {
    656 
    657 	while (summitfb_read4(sc, VISFX_STATUS) != 0)
    658 		continue;
    659 }
    660 
    661 static inline void
    662 summitfb_write_mode(struct summitfb_softc *sc, uint32_t mode)
    663 {
    664 	if (sc->sc_write_mode == mode)
    665 		return;
    666 	summitfb_wait(sc);
    667 	summitfb_write4(sc, VISFX_VRAM_WRITE_MODE, mode);
    668 	summitfb_write4(sc, VISFX_VRAM_READ_MODE,mode & 0x07fff000);
    669 	sc->sc_write_mode = mode;
    670 }
    671 
    672 static inline void
    673 summitfb_setup_fb(struct summitfb_softc *sc)
    674 {
    675 
    676 	summitfb_wait(sc);
    677 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
    678 		summitfb_write_mode(sc, VISFX_WRITE_MODE_PLAIN);
    679 		summitfb_write4(sc, VISFX_APERTURE_ACCESS, VISFX_DEPTH_8);
    680 		summitfb_write4(sc, VISFX_OTR, OTR_T | OTR_L1 | OTR_L0); // opaque
    681 	} else {
    682 		summitfb_write_mode(sc, OTC01 | BIN8F | BUFFL);
    683 		summitfb_write4(sc, VISFX_APERTURE_ACCESS, VISFX_DEPTH_32);
    684 		summitfb_write4(sc, VISFX_OTR, OTR_A);	// all transparent
    685 	}
    686 	summitfb_write4(sc, VISFX_IBO, RopSrc);
    687 	//summitfb_write4(sc, VISFX_CONTROL, CONTROL_WFC);
    688 }
    689 
    690 void
    691 summitfb_setup(struct summitfb_softc *sc)
    692 {
    693 	int i;
    694 
    695 	sc->sc_hot_x = 0;
    696 	sc->sc_hot_y = 0;
    697 	sc->sc_enabled = 0;
    698 	sc->sc_video_on = 1;
    699 
    700 	summitfb_wait(sc);
    701 #if 1
    702 	/* these control byte swapping */
    703 	summitfb_write4(sc, 0xb08044, 0x1b);	/* MFU_BSCTD */
    704 	summitfb_write4(sc, 0xb08048, 0x1b);	/* MFU_BSCCTL */
    705 
    706 	summitfb_write4(sc, 0x920860, 0xe4);	/* FBC_RBS */
    707 	summitfb_write4(sc, 0x921114, 0);	/* CPE, ckip plane enable */
    708 	summitfb_write4(sc, 0x9211d8, 0);	/* FCDA */
    709 
    710 	summitfb_write4(sc, 0xa00818, 0);	/* WORG window origin */
    711 	summitfb_write4(sc, 0xa0081c, 0);	/* FBS front buffer select*/
    712 	summitfb_write4(sc, 0xa00850, 0);	/* MISC_CTL */
    713 	summitfb_write4(sc, 0xa0086c, 0);	/* WCE window clipping enable */
    714 #endif
    715 	/* initialize drawiing engine */
    716 	summitfb_wait(sc);
    717 	summitfb_write4(sc, VISFX_CONTROL, 0);	// clear WFC
    718 	summitfb_write4(sc, VISFX_APERTURE_ACCESS, VISFX_DEPTH_8);
    719 	summitfb_write4(sc, VISFX_PIXEL_MASK, 0xffffffff);
    720 	summitfb_write4(sc, VISFX_PLANE_MASK, 0xffffffff);
    721 	summitfb_write4(sc, VISFX_FOE, FOE_BLEND_ROP);
    722 	summitfb_write4(sc, VISFX_IBO, RopSrc);
    723 	summitfb_write_mode(sc, VISFX_WRITE_MODE_PLAIN);
    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 	summitfb_write4(sc, VISFX_TCR, 0x10001000);	/* disable throttling */
    730 
    731 	/* make sure the overlay is opaque */
    732 	summitfb_write4(sc, VISFX_OTR, OTR_T | OTR_L1 | OTR_L0);
    733 
    734 	/*
    735 	 * initialize XLUT
    736 	 */
    737 	for (i = 0; i < 16; i++)
    738 		summitfb_write4(sc, VISFX_IAA(i), IAA_8F | IAA_CFS1); /* RGB, CFS1 */
    739 	summitfb_write4(sc, VISFX_CFS(1), CFS_8F | CFS_BYPASS);
    740 	/* overlay is 8bit, uses LUT 0 */
    741 	summitfb_write4(sc, VISFX_CFS(16), CFS_8I | CFS_LUT0);
    742 	summitfb_write4(sc, VISFX_CFS(17), CFS_8I | CFS_LUT0);
    743 
    744 	/* zero the attribute plane */
    745 	summitfb_write_mode(sc, OTC04 | BINapln);
    746 	summitfb_wait_fifo(sc, 4);
    747 	summitfb_write4(sc, VISFX_PLANE_MASK, 0xff);
    748 	summitfb_write4(sc, VISFX_IBO, 0);
    749 	summitfb_write4(sc, VISFX_START, 0);
    750 	summitfb_write4(sc, VISFX_SIZE, (sc->sc_width << 16) | sc->sc_height);
    751 	summitfb_wait(sc);
    752 	summitfb_write4(sc, VISFX_PLANE_MASK, 0xffffffff);
    753 
    754 	/* turn off force attr so the above takes effect */
    755 	summitfb_write4(sc, VISFX_FATTR, 0);
    756 
    757 	summitfb_setup_fb(sc);
    758 }
    759 
    760 static int
    761 summitfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
    762     struct lwp *l)
    763 {
    764 	struct vcons_data *vd = v;
    765 	struct summitfb_softc *sc = vd->cookie;
    766 	struct wsdisplay_fbinfo *wdf;
    767 	struct vcons_screen *ms = vd->active;
    768 
    769 	switch (cmd) {
    770 	case WSDISPLAYIO_GTYPE:
    771 		*(u_int *)data = WSDISPLAY_TYPE_STI;
    772 		return 0;
    773 
    774 	case GCID:
    775 		*(u_int *)data = sc->sc_scr.scr_rom->rom_dd.dd_grid[0];
    776 		return 0;
    777 
    778 	/* PCI config read/write passthrough. */
    779 	case PCI_IOC_CFGREAD:
    780 	case PCI_IOC_CFGWRITE:
    781 		return pci_devioctl(sc->sc_pc, sc->sc_tag,
    782 		    cmd, data, flag, l);
    783 
    784 	case WSDISPLAYIO_GET_BUSID:
    785 		return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
    786 		    sc->sc_tag, data);
    787 
    788 	case WSDISPLAYIO_GINFO:
    789 		if (ms == NULL)
    790 			return ENODEV;
    791 		wdf = data;
    792 		wdf->height = ms->scr_ri.ri_height;
    793 		wdf->width = ms->scr_ri.ri_width;
    794 		wdf->depth = ms->scr_ri.ri_depth;
    795 		wdf->cmsize = 256;
    796 		return 0;
    797 
    798 	case WSDISPLAYIO_GETCMAP:
    799 		return summitfb_getcmap(sc,
    800 		    (struct wsdisplay_cmap *)data);
    801 
    802 	case WSDISPLAYIO_PUTCMAP:
    803 		return summitfb_putcmap(sc,
    804 		    (struct wsdisplay_cmap *)data);
    805 
    806 	case WSDISPLAYIO_LINEBYTES:
    807 		*(u_int *)data = 2048;
    808 		return 0;
    809 
    810 	case WSDISPLAYIO_SMODE: {
    811 		int new_mode = *(int *)data;
    812 
    813 		if (new_mode != sc->sc_mode) {
    814 			sc->sc_mode = new_mode;
    815 			if(new_mode == WSDISPLAYIO_MODE_EMUL) {
    816 				summitfb_setup(sc);
    817 				summitfb_restore_palette(sc);
    818 #ifdef SUMMITFB_ENABLE_GC
    819 				glyphcache_wipe(&sc->sc_gc);
    820 #endif
    821 				summitfb_loadfont(sc);
    822 				summitfb_rectfill(sc, 0, 0, sc->sc_width,
    823 				    sc->sc_height, ms->scr_ri.ri_devcmap[
    824 				    (ms->scr_defattr >> 16) & 0xff]);
    825 				vcons_redraw_screen(ms);
    826 				summitfb_set_video(sc, 1);
    827 			}
    828 			summitfb_setup_fb(sc);
    829 		}
    830 		return 0;
    831 	}
    832 
    833 	case WSDISPLAYIO_GET_FBINFO: {
    834 		struct wsdisplayio_fbinfo *fbi = data;
    835 		int ret;
    836 
    837 		ret = wsdisplayio_get_fbinfo(&ms->scr_ri, fbi);
    838 		//fbi->fbi_fbsize = sc->sc_height * 2048;
    839 		fbi->fbi_stride = 8192;
    840 		fbi->fbi_bitsperpixel = 32;
    841 		fbi->fbi_pixeltype = WSFB_RGB;
    842 		fbi->fbi_subtype.fbi_rgbmasks.red_offset = 16;
    843 		fbi->fbi_subtype.fbi_rgbmasks.red_size = 8;
    844 		fbi->fbi_subtype.fbi_rgbmasks.green_offset = 8;
    845 		fbi->fbi_subtype.fbi_rgbmasks.green_size = 8;
    846 		fbi->fbi_subtype.fbi_rgbmasks.blue_offset = 0;
    847 		fbi->fbi_subtype.fbi_rgbmasks.blue_size = 8;
    848 		fbi->fbi_subtype.fbi_rgbmasks.alpha_size = 0;
    849 		fbi->fbi_fbsize = sc->sc_scr.fbheight * 8192;
    850 		return ret;
    851 	}
    852 
    853 	case WSDISPLAYIO_GCURPOS: {
    854 		struct wsdisplay_curpos *cp = data;
    855 
    856 		cp->x = sc->sc_cursor_x;
    857 		cp->y = sc->sc_cursor_y;
    858 		return 0;
    859 	}
    860 
    861 	case WSDISPLAYIO_SCURPOS: {
    862 		struct wsdisplay_curpos *cp = data;
    863 
    864 		summitfb_move_cursor(sc, cp->x, cp->y);
    865 		return 0;
    866 	}
    867 
    868 	case WSDISPLAYIO_GCURMAX: {
    869 		struct wsdisplay_curpos *cp = data;
    870 
    871 		cp->x = 64;
    872 		cp->y = 64;
    873 		return 0;
    874 	}
    875 
    876 	case WSDISPLAYIO_SCURSOR: {
    877 		struct wsdisplay_cursor *cursor = data;
    878 
    879 		return summitfb_do_cursor(sc, cursor);
    880 	}
    881 
    882 	case WSDISPLAYIO_SVIDEO:
    883 		summitfb_set_video(sc, *(int *)data);
    884 		return 0;
    885 	case WSDISPLAYIO_GVIDEO:
    886 		*(u_int *)data = sc->sc_video_on ?
    887 		    WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF;
    888 		return 0;
    889 	}
    890 	return EPASSTHROUGH;
    891 }
    892 
    893 static paddr_t
    894 summitfb_mmap(void *v, void *vs, off_t offset, int prot)
    895 {
    896 	struct vcons_data *vd = v;
    897 	struct summitfb_softc *sc = vd->cookie;
    898 	struct sti_rom *rom = sc->sc_base.sc_rom;
    899 	paddr_t pa = -1;
    900 
    901 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)
    902 		return -1;
    903 
    904 	if (offset >= 0 && offset < 0x01000000) {
    905 		/* framebuffer */
    906 		pa = bus_space_mmap(rom->memt, sc->sc_scr.fbaddr, offset,
    907 		    prot, BUS_SPACE_MAP_LINEAR);
    908 	} else if (offset >= 0x80000000 && offset < 0x81000000) {
    909 		/* blitter registers etc. */
    910 		pa = bus_space_mmap(rom->memt, rom->regh[0],
    911 		    offset - 0x80000000, prot, BUS_SPACE_MAP_LINEAR);
    912 	}
    913 
    914 	return pa;
    915 }
    916 
    917 static void
    918 summitfb_init_screen(void *cookie, struct vcons_screen *scr,
    919     int existing, long *defattr)
    920 {
    921 	struct summitfb_softc *sc = cookie;
    922 	struct rasops_info *ri = &scr->scr_ri;
    923 
    924 	ri->ri_depth = 8;
    925 	ri->ri_width = sc->sc_width;
    926 	ri->ri_height = sc->sc_height;
    927 	ri->ri_stride = 2048;
    928 	ri->ri_flg = RI_CENTER | RI_8BIT_IS_RGB
    929 #ifdef SUMMITFB_ENABLE_GC
    930 	    | RI_ENABLE_ALPHA | RI_PREFER_ALPHA
    931 #endif
    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/* | VCONS_NO_CURSOR*/;
    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 #ifdef SUMMITFB_ENABLE_GC
    951 	sc->sc_putchar = ri->ri_ops.putchar;
    952 	if (FONT_IS_ALPHA(ri->ri_font)) {
    953 		ri->ri_ops.putchar = summitfb_putchar_aa;
    954 	} else
    955 #endif
    956 	{
    957 		int fbwidth = (sc->sc_width + 511) & ~511;
    958 		int fcols = (fbwidth - sc->sc_width - 2) / ri->ri_font->fontwidth;
    959 		int frows = sc->sc_height / ri->ri_font->fontheight;
    960 		sc->sc_font_start = sc->sc_width + 2;
    961 		if ((fcols * frows) >= ri->ri_font->numchars) {
    962 			/* ok, we can do this */
    963 			sc->sc_cols = fcols;
    964 			sc->sc_font = ri->ri_font;
    965 			summitfb_loadfont(sc);
    966 			ri->ri_ops.putchar = summitfb_putchar_fast;
    967 		} else
    968 			ri->ri_ops.putchar = summitfb_putchar;
    969 	}
    970 }
    971 
    972 static int
    973 summitfb_putcmap(struct summitfb_softc *sc, struct wsdisplay_cmap *cm)
    974 {
    975 	u_char *r, *g, *b;
    976 	u_int index = cm->index;
    977 	u_int count = cm->count;
    978 	int i, error;
    979 	u_char rbuf[256], gbuf[256], bbuf[256];
    980 
    981 	if (cm->index >= 256 || cm->count > 256 ||
    982 	    (cm->index + cm->count) > 256)
    983 		return EINVAL;
    984 	error = copyin(cm->red, &rbuf[index], count);
    985 	if (error)
    986 		return error;
    987 	error = copyin(cm->green, &gbuf[index], count);
    988 	if (error)
    989 		return error;
    990 	error = copyin(cm->blue, &bbuf[index], count);
    991 	if (error)
    992 		return error;
    993 
    994 	memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
    995 	memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
    996 	memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
    997 
    998 	r = &sc->sc_cmap_red[index];
    999 	g = &sc->sc_cmap_green[index];
   1000 	b = &sc->sc_cmap_blue[index];
   1001 
   1002 	for (i = 0; i < count; i++) {
   1003 		summitfb_putpalreg(sc, index, *r, *g, *b);
   1004 		index++;
   1005 		r++, g++, b++;
   1006 	}
   1007 	return 0;
   1008 }
   1009 
   1010 static int
   1011 summitfb_getcmap(struct summitfb_softc *sc, struct wsdisplay_cmap *cm)
   1012 {
   1013 	u_int index = cm->index;
   1014 	u_int count = cm->count;
   1015 	int error;
   1016 
   1017 	if (index >= 255 || count > 256 || index + count > 256)
   1018 		return EINVAL;
   1019 
   1020 	error = copyout(&sc->sc_cmap_red[index],   cm->red,   count);
   1021 	if (error)
   1022 		return error;
   1023 	error = copyout(&sc->sc_cmap_green[index], cm->green, count);
   1024 	if (error)
   1025 		return error;
   1026 	error = copyout(&sc->sc_cmap_blue[index],  cm->blue,  count);
   1027 	if (error)
   1028 		return error;
   1029 
   1030 	return 0;
   1031 }
   1032 
   1033 static void
   1034 summitfb_restore_palette(struct summitfb_softc *sc)
   1035 {
   1036 	uint8_t cmap[768];
   1037 	int i, j;
   1038 
   1039 	j = 0;
   1040 	rasops_get_cmap(&sc->sc_console_screen.scr_ri, cmap, sizeof(cmap));
   1041 	for (i = 0; i < 256; i++) {
   1042 		sc->sc_cmap_red[i] = cmap[j];
   1043 		sc->sc_cmap_green[i] = cmap[j + 1];
   1044 		sc->sc_cmap_blue[i] = cmap[j + 2];
   1045 		summitfb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
   1046 		j += 3;
   1047 	}
   1048 }
   1049 
   1050 static int
   1051 summitfb_putpalreg(struct summitfb_softc *sc, uint8_t idx,
   1052     uint8_t r, uint8_t g, uint8_t b)
   1053 {
   1054 
   1055 	summitfb_write4(sc, VISFX_COLOR_INDEX, idx);
   1056 	summitfb_write4(sc, VISFX_COLOR_VALUE, (r << 16) | ( g << 8) | b);
   1057 	summitfb_write4(sc, VISFX_COLOR_MASK, 0xff);
   1058 	return 0;
   1059 }
   1060 
   1061 static inline void
   1062 summitfb_wait_fifo(struct summitfb_softc *sc, uint32_t slots)
   1063 {
   1064 	uint32_t reg;
   1065 
   1066 	do {
   1067 		reg = summitfb_read4(sc, VISFX_FIFO);
   1068 	} while (reg < slots);
   1069 }
   1070 
   1071 static void
   1072 summitfb_rectfill(struct summitfb_softc *sc, int x, int y, int wi, int he,
   1073     uint32_t bg)
   1074 {
   1075 
   1076 	summitfb_write_mode(sc, VISFX_WRITE_MODE_FILL);
   1077 	summitfb_wait_fifo(sc, 4);
   1078 	summitfb_write4(sc, VISFX_IBO, RopSrc);
   1079 	summitfb_write4(sc, VISFX_FG_COLOUR, bg);
   1080 	summitfb_write4(sc, VISFX_START, (x << 16) | y);
   1081 	summitfb_write4(sc, VISFX_SIZE, (wi << 16) | he);
   1082 }
   1083 
   1084 static void
   1085 summitfb_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
   1086     int he, int rop)
   1087 {
   1088 	struct summitfb_softc *sc = cookie;
   1089 
   1090 	summitfb_write_mode(sc, VISFX_WRITE_MODE_PLAIN);
   1091 	summitfb_wait_fifo(sc, 4);
   1092 	summitfb_write4(sc, VISFX_IBO, rop);
   1093 	summitfb_write4(sc, VISFX_COPY_SRC, (xs << 16) | ys);
   1094 	summitfb_write4(sc, VISFX_COPY_WH, (wi << 16) | he);
   1095 	summitfb_write4(sc, VISFX_COPY_DST, (xd << 16) | yd);
   1096 
   1097 }
   1098 
   1099 static void
   1100 summitfb_nuke_cursor(struct rasops_info *ri)
   1101 {
   1102 	struct vcons_screen *scr = ri->ri_hw;
   1103 	struct summitfb_softc *sc = scr->scr_cookie;
   1104 	int wi, he, x, y;
   1105 
   1106 	if (ri->ri_flg & RI_CURSOR) {
   1107 		wi = ri->ri_font->fontwidth;
   1108 		he = ri->ri_font->fontheight;
   1109 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1110 		y = ri->ri_crow * he + ri->ri_yorigin;
   1111 		summitfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1112 		ri->ri_flg &= ~RI_CURSOR;
   1113 	}
   1114 }
   1115 
   1116 static void
   1117 summitfb_cursor(void *cookie, int on, int row, int col)
   1118 {
   1119 	struct rasops_info *ri = cookie;
   1120 	struct vcons_screen *scr = ri->ri_hw;
   1121 	struct summitfb_softc *sc = scr->scr_cookie;
   1122 	int x, y, wi, he;
   1123 
   1124 	wi = ri->ri_font->fontwidth;
   1125 	he = ri->ri_font->fontheight;
   1126 
   1127 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1128 		if (on) {
   1129 			if (ri->ri_flg & RI_CURSOR) {
   1130 				summitfb_nuke_cursor(ri);
   1131 			}
   1132 			x = col * wi + ri->ri_xorigin;
   1133 			y = row * he + ri->ri_yorigin;
   1134 			summitfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1135 			ri->ri_flg |= RI_CURSOR;
   1136 		}
   1137 		ri->ri_crow = row;
   1138 		ri->ri_ccol = col;
   1139 	} else {
   1140 		ri->ri_crow = row;
   1141 		ri->ri_ccol = col;
   1142 		ri->ri_flg &= ~RI_CURSOR;
   1143 	}
   1144 
   1145 }
   1146 
   1147 static void
   1148 summitfb_putchar(void *cookie, int row, int col, u_int c, long attr)
   1149 {
   1150 	struct rasops_info *ri = cookie;
   1151 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1152 	struct vcons_screen *scr = ri->ri_hw;
   1153 	struct summitfb_softc *sc = scr->scr_cookie;
   1154 	void *data;
   1155 	int i, x, y, wi, he;
   1156 	uint32_t bg, fg, mask;
   1157 
   1158 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1159 		return;
   1160 
   1161 	if (!CHAR_IN_FONT(c, font))
   1162 		return;
   1163 
   1164 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1165 		ri->ri_flg &= ~RI_CURSOR;
   1166 	}
   1167 
   1168 	wi = font->fontwidth;
   1169 	he = font->fontheight;
   1170 
   1171 	x = ri->ri_xorigin + col * wi;
   1172 	y = ri->ri_yorigin + row * he;
   1173 
   1174 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1175 
   1176 	/* if we're drawing a space we're done here */
   1177 	if (c == 0x20) {
   1178 		summitfb_rectfill(sc, x, y, wi, he, bg);
   1179 		return;
   1180 	}
   1181 
   1182 	fg = ri->ri_devcmap[(attr >> 24) & 0x0f];
   1183 
   1184 	summitfb_write_mode(sc, VISFX_WRITE_MODE_EXPAND);
   1185 	summitfb_wait_fifo(sc, 6);
   1186 	summitfb_write4(sc, VISFX_IBO, RopSrc);
   1187 	summitfb_write4(sc, VISFX_FG_COLOUR, fg);
   1188 	summitfb_write4(sc, VISFX_BG_COLOUR, bg);
   1189 	mask = 0xffffffff << (32 - wi);
   1190 	summitfb_write4(sc, VISFX_PIXEL_MASK, mask);
   1191 	/* not a tpyo, coordinates *are* backwards for this register */
   1192 	summitfb_write4(sc, VISFX_VRAM_WRITE_DEST, (y << 16) | x);
   1193 
   1194 	data = WSFONT_GLYPH(c, font);
   1195 
   1196 	if (ri->ri_font->stride == 1) {
   1197 		uint8_t *data8 = data;
   1198 		for (i = 0; i < he; i++) {
   1199 			mask = *data8;
   1200 			summitfb_write4(sc, VISFX_VRAM_WRITE_DATA_INCRY,
   1201 			    mask << 24);
   1202 			data8++;
   1203 		}
   1204 	} else {
   1205 		uint16_t *data16 = data;
   1206 		for (i = 0; i < he; i++) {
   1207 			mask = *data16;
   1208 			summitfb_write4(sc, VISFX_VRAM_WRITE_DATA_INCRY,
   1209 			    mask << 16);
   1210 			data16++;
   1211 		}
   1212 	}
   1213 }
   1214 
   1215 static void
   1216 summitfb_loadfont(struct summitfb_softc *sc)
   1217 {
   1218 	int i, c, x, y;
   1219 	uint8_t *data;
   1220 	uint16_t *data16;
   1221 	uint32_t mask;
   1222 
   1223 	summitfb_write_mode(sc, VISFX_WRITE_MODE_EXPAND);
   1224 	summitfb_write4(sc, VISFX_IBO, RopSrc);
   1225 	summitfb_write4(sc, VISFX_FG_COLOUR, 0xffffffff);
   1226 	summitfb_write4(sc, VISFX_BG_COLOUR, 0);
   1227 
   1228 	mask = 0xffffffff << (32 - sc->sc_font->fontwidth);
   1229 	summitfb_write4(sc, VISFX_PIXEL_MASK, mask);
   1230 
   1231 	for (c = 0; c < sc->sc_font->numchars; c++) {
   1232 		x = sc->sc_font_start + (c % sc->sc_cols) * sc->sc_font->fontwidth;
   1233 		y = (c / sc->sc_cols) * sc->sc_font->fontheight;
   1234 		data = WSFONT_GLYPH(sc->sc_font->firstchar + c, sc->sc_font);
   1235 		summitfb_write4(sc, VISFX_VRAM_WRITE_DEST, (y << 16) | x);
   1236 		if (sc->sc_font->stride == 1) {
   1237 			for (i = 0; i < sc->sc_font->fontheight; i++) {
   1238 				mask = *data;
   1239 				summitfb_write4(sc, VISFX_VRAM_WRITE_DATA_INCRY,
   1240 				    mask << 24);
   1241 				data++;
   1242 			}
   1243 		} else {
   1244 			data16 = (uint16_t *)data;
   1245 			for (i = 0; i < sc->sc_font->fontheight; i++) {
   1246 				mask = *data16;
   1247 				summitfb_write4(sc, VISFX_VRAM_WRITE_DATA_INCRY,
   1248 				    mask << 16);
   1249 				data16++;
   1250 			}
   1251 		}
   1252 	}
   1253 }
   1254 
   1255 static void
   1256 summitfb_putchar_fast(void *cookie, int row, int col, u_int c, long attr)
   1257 {
   1258 	struct rasops_info *ri = cookie;
   1259 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1260 	struct vcons_screen *scr = ri->ri_hw;
   1261 	struct summitfb_softc *sc = scr->scr_cookie;
   1262 	int i, x, y, wi, he, xs, ys;
   1263 	uint32_t bg, fg;
   1264 
   1265 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1266 		return;
   1267 
   1268 	if (!CHAR_IN_FONT(c, font))
   1269 		return;
   1270 
   1271 	/* for autogenerated line drawing characters */
   1272 	if (font != sc->sc_font) {
   1273 		summitfb_putchar(cookie, row, col, c, attr);
   1274 		return;
   1275 	}
   1276 
   1277 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1278 		ri->ri_flg &= ~RI_CURSOR;
   1279 	}
   1280 
   1281 	wi = font->fontwidth;
   1282 	he = font->fontheight;
   1283 
   1284 	x = ri->ri_xorigin + col * wi;
   1285 	y = ri->ri_yorigin + row * he;
   1286 
   1287 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1288 
   1289 	/* if we're drawing a space we're done here */
   1290 	if (c == 0x20) {
   1291 		summitfb_rectfill(sc, x, y, wi, he, bg);
   1292 		return;
   1293 	}
   1294 
   1295 	fg = ri->ri_devcmap[(attr >> 24) & 0x0f];
   1296 
   1297 	summitfb_write_mode(sc, 0x050000c0);
   1298 	summitfb_wait_fifo(sc, 6);
   1299 	summitfb_write4(sc, VISFX_IBO, RopSrc);
   1300 	summitfb_write4(sc, VISFX_FG_COLOUR, fg);
   1301 	summitfb_write4(sc, VISFX_BG_COLOUR, bg);
   1302 
   1303 	i = c - font->firstchar;
   1304 	xs = sc->sc_font_start + (i % sc->sc_cols) * sc->sc_font->fontwidth;
   1305 	ys = (i / sc->sc_cols) * sc->sc_font->fontheight;
   1306 
   1307 	summitfb_write4(sc, VISFX_COPY_SRC, (xs << 16) | ys);
   1308 	summitfb_write4(sc, VISFX_COPY_WH, (wi << 16) | he);
   1309 	summitfb_write4(sc, VISFX_COPY_DST, (x << 16) | y);
   1310 
   1311 }
   1312 
   1313 #ifdef SUMMITFB_ENABLE_GC
   1314 static void
   1315 summitfb_putchar_aa(void *cookie, int row, int col, u_int c, long attr)
   1316 {
   1317 	struct rasops_info *ri = cookie;
   1318 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1319 	struct vcons_screen *scr = ri->ri_hw;
   1320 	struct summitfb_softc *sc = scr->scr_cookie;
   1321 	int x, y, wi, he, rv = GC_NOPE;
   1322 	uint32_t bg;
   1323 
   1324 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1325 		return;
   1326 
   1327 	if (!CHAR_IN_FONT(c, font))
   1328 		return;
   1329 
   1330 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1331 		ri->ri_flg &= ~RI_CURSOR;
   1332 	}
   1333 
   1334 	wi = font->fontwidth;
   1335 	he = font->fontheight;
   1336 
   1337 	x = ri->ri_xorigin + col * wi;
   1338 	y = ri->ri_yorigin + row * he;
   1339 
   1340 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1341 
   1342 	if (c == 0x20) {
   1343 		summitfb_rectfill(sc, x, y, wi, he, bg);
   1344 		return;
   1345 	}
   1346 
   1347 	rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
   1348 	if (rv == GC_OK)
   1349 		return;
   1350 
   1351 	summitfb_setup_fb(sc);
   1352 	summitfb_wait(sc);
   1353 	sc->sc_putchar(cookie, row, col, c, attr);
   1354 
   1355 	if (rv == GC_ADD)
   1356 		glyphcache_add(&sc->sc_gc, c, x, y);
   1357 }
   1358 #endif
   1359 
   1360 static void
   1361 summitfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1362 {
   1363 	struct rasops_info *ri = cookie;
   1364 	struct vcons_screen *scr = ri->ri_hw;
   1365 	struct summitfb_softc *sc = scr->scr_cookie;
   1366 	int32_t xs, xd, y, width, height;
   1367 
   1368 	if (sc->sc_locked == 0 && sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1369 
   1370 		if (ri->ri_crow == row &&
   1371 		    ri->ri_ccol >= srccol && ri->ri_ccol < (srccol + ncols) &&
   1372 		    (ri->ri_flg & RI_CURSOR)) {
   1373 			summitfb_nuke_cursor(ri);
   1374 		}
   1375 
   1376 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   1377 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   1378 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1379 		width = ri->ri_font->fontwidth * ncols;
   1380 		height = ri->ri_font->fontheight;
   1381 		summitfb_bitblt(sc, xs, y, xd, y, width, height, RopSrc);
   1382 
   1383 		if (ri->ri_crow == row &&
   1384 		    ri->ri_ccol >= dstcol && ri->ri_ccol < (dstcol + ncols))
   1385 			ri->ri_flg &= ~RI_CURSOR;
   1386 	}
   1387 }
   1388 
   1389 static void
   1390 summitfb_erasecols(void *cookie, int row, int startcol, int ncols,
   1391     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 + ri->ri_font->fontwidth * startcol;
   1400 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1401 		width = ri->ri_font->fontwidth * ncols;
   1402 		height = ri->ri_font->fontheight;
   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 &&
   1408 		    ri->ri_ccol >= startcol &&
   1409 		    ri->ri_ccol < (startcol + ncols))
   1410 			ri->ri_flg &= ~RI_CURSOR;
   1411 	}
   1412 }
   1413 
   1414 static void
   1415 summitfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   1416 {
   1417 	struct rasops_info *ri = cookie;
   1418 	struct vcons_screen *scr = ri->ri_hw;
   1419 	struct summitfb_softc *sc = scr->scr_cookie;
   1420 	int32_t x, ys, yd, width, height;
   1421 
   1422 	if (sc->sc_locked == 0 && sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1423 
   1424 		if (ri->ri_crow >= srcrow && ri->ri_crow < (srcrow + nrows) &&
   1425 		    (ri->ri_flg & RI_CURSOR)) {
   1426 			summitfb_nuke_cursor(ri);
   1427 		}
   1428 
   1429 		x = ri->ri_xorigin;
   1430 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   1431 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   1432 		width = ri->ri_emuwidth;
   1433 		height = ri->ri_font->fontheight * nrows;
   1434 		summitfb_bitblt(sc, x, ys, x, yd, width, height, RopSrc);
   1435 
   1436 		if (ri->ri_crow >= dstrow && ri->ri_crow < (dstrow + nrows))
   1437 			ri->ri_flg &= ~RI_CURSOR;
   1438 	}
   1439 }
   1440 
   1441 static void
   1442 summitfb_eraserows(void *cookie, int row, int nrows, long fillattr)
   1443 {
   1444 	struct rasops_info *ri = cookie;
   1445 	struct vcons_screen *scr = ri->ri_hw;
   1446 	struct summitfb_softc *sc = scr->scr_cookie;
   1447 	int32_t x, y, width, height, fg, bg, ul;
   1448 
   1449 	if (sc->sc_locked == 0 && sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1450 		x = ri->ri_xorigin;
   1451 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1452 		width = ri->ri_emuwidth;
   1453 		height = ri->ri_font->fontheight * nrows;
   1454 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   1455 
   1456 		summitfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
   1457 
   1458 		if (ri->ri_crow >= row && ri->ri_crow < (row + nrows))
   1459 			ri->ri_flg &= ~RI_CURSOR;
   1460 	}
   1461 }
   1462 
   1463 static void
   1464 summitfb_move_cursor(struct summitfb_softc *sc, int x, int y)
   1465 {
   1466 	uint32_t pos;
   1467 
   1468 	sc->sc_cursor_x = x;
   1469 	x -= sc->sc_hot_x;
   1470 	sc->sc_cursor_y = y;
   1471 	y -= sc->sc_hot_y;
   1472 
   1473 	if (x < 0)
   1474 		x = 0x1000 - x;
   1475 	if (y < 0)
   1476 		y = 0x1000 - y;
   1477 	pos = (x << 16) | y;
   1478 	if (sc->sc_enabled)
   1479 		pos |= 0x80000000;
   1480 	summitfb_write4(sc, VISFX_CURSOR_POS, pos);
   1481 }
   1482 
   1483 static int
   1484 summitfb_do_cursor(struct summitfb_softc *sc, struct wsdisplay_cursor *cur)
   1485 {
   1486 
   1487 	if (cur->which & WSDISPLAY_CURSOR_DOCUR) {
   1488 		sc->sc_enabled = cur->enable;
   1489 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1490 	}
   1491 	if (cur->which & WSDISPLAY_CURSOR_DOHOT) {
   1492 		sc->sc_hot_x = cur->hot.x;
   1493 		sc->sc_hot_y = cur->hot.y;
   1494 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1495 	}
   1496 	if (cur->which & WSDISPLAY_CURSOR_DOPOS) {
   1497 		summitfb_move_cursor(sc, cur->pos.x, cur->pos.y);
   1498 	}
   1499 	if (cur->which & WSDISPLAY_CURSOR_DOCMAP) {
   1500 		uint32_t rgb;
   1501 		uint8_t r[2], g[2], b[2];
   1502 
   1503 		copyin(cur->cmap.blue, b, 2);
   1504 		copyin(cur->cmap.green, g, 2);
   1505 		copyin(cur->cmap.red, r, 2);
   1506 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0);
   1507 		rgb = r[0] << 16 | g[0] << 8 | b[0];
   1508 		summitfb_write4(sc, VISFX_CURSOR_BG, rgb);
   1509 		rgb = r[1] << 16 | g[1] << 8 | b[1];
   1510 		summitfb_write4(sc, VISFX_CURSOR_FG, rgb);
   1511 
   1512 	}
   1513 	if (cur->which & WSDISPLAY_CURSOR_DOSHAPE) {
   1514 
   1515 		uint32_t buffer[128], latch, tmp;
   1516 		int i;
   1517 
   1518 		copyin(cur->mask, buffer, 512);
   1519 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0);
   1520 		for (i = 0; i < 128; i += 2) {
   1521 			latch = 0;
   1522 			tmp = buffer[i] & 0x80808080;
   1523 			latch |= tmp >> 7;
   1524 			tmp = buffer[i] & 0x40404040;
   1525 			latch |= tmp >> 5;
   1526 			tmp = buffer[i] & 0x20202020;
   1527 			latch |= tmp >> 3;
   1528 			tmp = buffer[i] & 0x10101010;
   1529 			latch |= tmp >> 1;
   1530 			tmp = buffer[i] & 0x08080808;
   1531 			latch |= tmp << 1;
   1532 			tmp = buffer[i] & 0x04040404;
   1533 			latch |= tmp << 3;
   1534 			tmp = buffer[i] & 0x02020202;
   1535 			latch |= tmp << 5;
   1536 			tmp = buffer[i] & 0x01010101;
   1537 			latch |= tmp << 7;
   1538 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1539 			latch = 0;
   1540 			tmp = buffer[i + 1] & 0x80808080;
   1541 			latch |= tmp >> 7;
   1542 			tmp = buffer[i + 1] & 0x40404040;
   1543 			latch |= tmp >> 5;
   1544 			tmp = buffer[i + 1] & 0x20202020;
   1545 			latch |= tmp >> 3;
   1546 			tmp = buffer[i + 1] & 0x10101010;
   1547 			latch |= tmp >> 1;
   1548 			tmp = buffer[i + 1] & 0x08080808;
   1549 			latch |= tmp << 1;
   1550 			tmp = buffer[i + 1] & 0x04040404;
   1551 			latch |= tmp << 3;
   1552 			tmp = buffer[i + 1] & 0x02020202;
   1553 			latch |= tmp << 5;
   1554 			tmp = buffer[i + 1] & 0x01010101;
   1555 			latch |= tmp << 7;
   1556 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1557 		}
   1558 
   1559 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0x80);
   1560 		copyin(cur->image, buffer, 512);
   1561 		for (i = 0; i < 128; i += 2) {
   1562 			latch = 0;
   1563 			tmp = buffer[i] & 0x80808080;
   1564 			latch |= tmp >> 7;
   1565 			tmp = buffer[i] & 0x40404040;
   1566 			latch |= tmp >> 5;
   1567 			tmp = buffer[i] & 0x20202020;
   1568 			latch |= tmp >> 3;
   1569 			tmp = buffer[i] & 0x10101010;
   1570 			latch |= tmp >> 1;
   1571 			tmp = buffer[i] & 0x08080808;
   1572 			latch |= tmp << 1;
   1573 			tmp = buffer[i] & 0x04040404;
   1574 			latch |= tmp << 3;
   1575 			tmp = buffer[i] & 0x02020202;
   1576 			latch |= tmp << 5;
   1577 			tmp = buffer[i] & 0x01010101;
   1578 			latch |= tmp << 7;
   1579 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1580 			latch = 0;
   1581 			tmp = buffer[i + 1] & 0x80808080;
   1582 			latch |= tmp >> 7;
   1583 			tmp = buffer[i + 1] & 0x40404040;
   1584 			latch |= tmp >> 5;
   1585 			tmp = buffer[i + 1] & 0x20202020;
   1586 			latch |= tmp >> 3;
   1587 			tmp = buffer[i + 1] & 0x10101010;
   1588 			latch |= tmp >> 1;
   1589 			tmp = buffer[i + 1] & 0x08080808;
   1590 			latch |= tmp << 1;
   1591 			tmp = buffer[i + 1] & 0x04040404;
   1592 			latch |= tmp << 3;
   1593 			tmp = buffer[i + 1] & 0x02020202;
   1594 			latch |= tmp << 5;
   1595 			tmp = buffer[i + 1] & 0x01010101;
   1596 			latch |= tmp << 7;
   1597 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1598 		}
   1599 	}
   1600 
   1601 	return 0;
   1602 }
   1603 
   1604 static void
   1605 summitfb_set_video(struct summitfb_softc *sc, int on)
   1606 {
   1607 
   1608 	if (sc->sc_video_on == on)
   1609 		return;
   1610 
   1611 	sc->sc_video_on = on;
   1612 
   1613 	summitfb_wait(sc);
   1614 	if (on) {
   1615 		summitfb_write4(sc, VISFX_MPC, MPC_VIDEO_ON);
   1616 	} else {
   1617 		summitfb_write4(sc, VISFX_MPC, MPC_VSYNC_OFF | MPC_HSYNC_OFF);
   1618 	}
   1619 }
   1620 
   1621 static void
   1622 summitfb_copyfont(struct summitfb_softc *sc)
   1623 {
   1624 	struct sti_font *fp = &sc->sc_scr.scr_curfont;
   1625 	uint8_t *font = sc->sc_scr.scr_romfont;
   1626 	uint8_t *fontbuf, *fontdata, *src, *dst;
   1627 	struct wsdisplay_font *f;
   1628 	int bufsize, i, si;
   1629 
   1630 	if (font == NULL)
   1631 		return;
   1632 
   1633 	bufsize = sizeof(struct wsdisplay_font) + 32 + fp->bpc * (fp->last - fp->first);
   1634 	DPRINTF(("%s: %dx%d %d\n", __func__, fp->width, fp->height, bufsize));
   1635 	fontbuf = kmem_alloc(bufsize, KM_SLEEP);
   1636 	f = (struct wsdisplay_font *)fontbuf;
   1637 	f->name = fontbuf + sizeof(struct wsdisplay_font);
   1638 	fontdata = fontbuf + sizeof(struct wsdisplay_font) + 32;
   1639 	strcpy(fontbuf + sizeof(struct wsdisplay_font), "HP ROM");
   1640 	f->firstchar = fp->first;
   1641 	f->numchars = (fp->last + 1) - fp->first;
   1642 	f->encoding = WSDISPLAY_FONTENC_ISO;
   1643 	f->fontwidth = fp->width;
   1644 	f->fontheight = fp->height;
   1645 	f->stride = (fp->width + 7) >> 3;
   1646 	f->bitorder = WSDISPLAY_FONTORDER_L2R;
   1647 	f->byteorder = WSDISPLAY_FONTORDER_L2R;
   1648 	f->data = fontdata;
   1649 	/* skip over font struct */
   1650 	font += sizeof(struct sti_font);
   1651 	/* now copy and rearrange the glyphs into ISO order */
   1652 	/* first, copy the characters up to 0x7f */
   1653 	memcpy(fontdata, font, (0x80 - fp->first) * fp->bpc);
   1654 	/* zero 0x80 to 0x9f */
   1655 	memset(fontdata + 0x80 * fp->bpc, 0, 0x20 * fp->bpc);
   1656 	/* rearrange 0xa0 till last */
   1657 	for (i = 0xa0; i < (fp->last + 1); i++) {
   1658 		dst = fontdata + fp->bpc * i;
   1659 		si = sti_unitoroman[i - 0xa0];
   1660 		if (si != 0) {
   1661 			src = font + fp->bpc * si;
   1662 			memcpy(dst, src, fp->bpc);
   1663 		} else {
   1664 			/* no mapping - zeeo this cell */
   1665 			memset(dst, 0, fp->bpc);
   1666 		}
   1667 	}
   1668 	wsfont_add(f, 0);
   1669 }
   1670