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      1 /*	$NetBSD: gftfb.c,v 1.29 2025/03/11 06:04:19 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 EG PCI graphics cards
     25  * STI portions are from Miodrag Vallat's sti_pci.c
     26  */
     27 
     28 #include <sys/param.h>
     29 #include <sys/systm.h>
     30 #include <sys/kmem.h>
     31 #include <sys/device.h>
     32 #include <sys/mutex.h>
     33 
     34 #include <dev/pci/pcivar.h>
     35 #include <dev/pci/pcireg.h>
     36 #include <dev/pci/pcidevs.h>
     37 #include <dev/pci/pciio.h>
     38 
     39 #include <dev/wscons/wsdisplayvar.h>
     40 #include <dev/wscons/wsconsio.h>
     41 #include <dev/wsfont/wsfont.h>
     42 #include <dev/rasops/rasops.h>
     43 #include <dev/wscons/wsdisplay_vconsvar.h>
     44 #include <dev/pci/wsdisplay_pci.h>
     45 #include <dev/wscons/wsdisplay_glyphcachevar.h>
     46 
     47 #include <dev/ic/stireg.h>
     48 #include <dev/ic/stivar.h>
     49 
     50 #include "opt_gftfb.h"
     51 
     52 #ifdef GFTFB_DEBUG
     53 #define	DPRINTF(s) printf(s)
     54 #else
     55 #define	DPRINTF(s) /* */
     56 #endif
     57 
     58 int	gftfb_match(device_t, cfdata_t, void *);
     59 void	gftfb_attach(device_t, device_t, void *);
     60 
     61 struct	gftfb_softc {
     62 	device_t		sc_dev;
     63 	pci_chipset_tag_t	sc_pc;
     64 	pcitag_t		sc_tag;
     65 
     66 	/* stuff we need in order to use the STI ROM */
     67 	struct sti_softc	sc_base;
     68 	struct sti_screen 	sc_scr;
     69 	bus_space_handle_t	sc_romh;
     70 
     71 	int sc_width, sc_height;
     72 	int sc_locked;
     73 	struct vcons_screen sc_console_screen;
     74 	struct wsscreen_descr sc_defaultscreen_descr;
     75 	const struct wsscreen_descr *sc_screens[1];
     76 	struct wsscreen_list sc_screenlist;
     77 	struct vcons_data vd;
     78 	int sc_mode;
     79 	void (*sc_putchar)(void *, int, int, u_int, long);
     80 	u_char sc_cmap_red[256];
     81 	u_char sc_cmap_green[256];
     82 	u_char sc_cmap_blue[256];
     83 	kmutex_t sc_hwlock;
     84 	uint32_t sc_hwmode;
     85 #define HW_FB	0
     86 #define HW_FILL	1
     87 #define HW_BLIT	2
     88 	/* cursor stuff */
     89 	int sc_cursor_x, sc_cursor_y;
     90 	int sc_hot_x, sc_hot_y, sc_enabled;
     91 	int sc_video_on;
     92 	glyphcache sc_gc;
     93 };
     94 
     95 CFATTACH_DECL_NEW(gftfb, sizeof(struct gftfb_softc),
     96     gftfb_match, gftfb_attach, NULL, NULL);
     97 
     98 int	gftfb_readbar(struct sti_softc *, struct pci_attach_args *, u_int, int);
     99 int	gftfb_check_rom(struct gftfb_softc *, struct pci_attach_args *);
    100 void	gftfb_enable_rom(struct sti_softc *);
    101 void	gftfb_disable_rom(struct sti_softc *);
    102 void	gftfb_enable_rom_internal(struct gftfb_softc *);
    103 void	gftfb_disable_rom_internal(struct gftfb_softc *);
    104 
    105 void 	gftfb_setup(struct gftfb_softc *);
    106 
    107 #define	ngle_bt458_write(memt, memh, r, v) \
    108 	bus_space_write_stream_4(memt, memh, NGLE_REG_RAMDAC + ((r) << 2), (v) << 24)
    109 
    110 
    111 /* XXX these really need to go into their own header */
    112 int	sti_pci_is_console(struct pci_attach_args *, bus_addr_t *);
    113 int	sti_rom_setup(struct sti_rom *, bus_space_tag_t, bus_space_tag_t,
    114 	    bus_space_handle_t, bus_addr_t *, u_int);
    115 int	sti_screen_setup(struct sti_screen *, int);
    116 void	sti_describe_screen(struct sti_softc *, struct sti_screen *);
    117 
    118 #define PCI_ROM_SIZE(mr)                                                \
    119             (PCI_MAPREG_ROM_ADDR(mr) & -PCI_MAPREG_ROM_ADDR(mr))
    120 
    121 /* wsdisplay stuff */
    122 static int	gftfb_ioctl(void *, void *, u_long, void *, int,
    123 			     struct lwp *);
    124 static paddr_t	gftfb_mmap(void *, void *, off_t, int);
    125 static void	gftfb_init_screen(void *, struct vcons_screen *, int, long *);
    126 
    127 static int	gftfb_putcmap(struct gftfb_softc *, struct wsdisplay_cmap *);
    128 static int 	gftfb_getcmap(struct gftfb_softc *, struct wsdisplay_cmap *);
    129 static void	gftfb_restore_palette(struct gftfb_softc *);
    130 static int 	gftfb_putpalreg(struct gftfb_softc *, uint8_t, uint8_t,
    131 			    uint8_t, uint8_t);
    132 
    133 static void	gftfb_rectfill(struct gftfb_softc *, int, int, int, int,
    134 			    uint32_t);
    135 static void	gftfb_bitblt(void *, int, int, int, int, int,
    136 			    int, int);
    137 
    138 static void	gftfb_cursor(void *, int, int, int);
    139 static void	gftfb_putchar(void *, int, int, u_int, long);
    140 static void	gftfb_putchar_aa(void *, int, int, u_int, long);
    141 static void	gftfb_copycols(void *, int, int, int, int);
    142 static void	gftfb_erasecols(void *, int, int, int, long);
    143 static void	gftfb_copyrows(void *, int, int, int);
    144 static void	gftfb_eraserows(void *, int, int, long);
    145 
    146 static void	gftfb_move_cursor(struct gftfb_softc *, int, int);
    147 static int	gftfb_do_cursor(struct gftfb_softc *, struct wsdisplay_cursor *);
    148 
    149 static void	gftfb_set_video(struct gftfb_softc *, int);
    150 
    151 struct wsdisplay_accessops gftfb_accessops = {
    152 	gftfb_ioctl,
    153 	gftfb_mmap,
    154 	NULL,	/* alloc_screen */
    155 	NULL,	/* free_screen */
    156 	NULL,	/* show_screen */
    157 	NULL, 	/* load_font */
    158 	NULL,	/* pollc */
    159 	NULL	/* scroll */
    160 };
    161 
    162 static inline void gftfb_wait_fifo(struct gftfb_softc *, uint32_t);
    163 
    164 int
    165 gftfb_match(device_t parent, cfdata_t cf, void *aux)
    166 {
    167 	struct pci_attach_args *paa = aux;
    168 
    169 	if (PCI_VENDOR(paa->pa_id) != PCI_VENDOR_HP)
    170 		return 0;
    171 
    172 	if (PCI_PRODUCT(paa->pa_id) == PCI_PRODUCT_HP_VISUALIZE_EG)
    173 		return 10;	/* beat out sti at pci */
    174 
    175 	return 0;
    176 }
    177 
    178 static inline uint32_t
    179 gftfb_read4(struct gftfb_softc *sc, uint32_t offset)
    180 {
    181 	struct sti_rom *rom = sc->sc_base.sc_rom;
    182 	bus_space_tag_t memt = rom->memt;
    183 	bus_space_handle_t memh = rom->regh[2];
    184 	return bus_space_read_stream_4(memt, memh, offset);
    185 }
    186 
    187 static inline void
    188 gftfb_write4(struct gftfb_softc *sc, uint32_t offset, uint32_t val)
    189 {
    190 	struct sti_rom *rom = sc->sc_base.sc_rom;
    191 	bus_space_tag_t memt = rom->memt;
    192 	bus_space_handle_t memh = rom->regh[2];
    193 	bus_space_write_stream_4(memt, memh, offset, val);
    194 }
    195 
    196 static inline uint8_t
    197 gftfb_read1(struct gftfb_softc *sc, uint32_t offset)
    198 {
    199 	struct sti_rom *rom = sc->sc_base.sc_rom;
    200 	bus_space_tag_t memt = rom->memt;
    201 	bus_space_handle_t memh = rom->regh[2];
    202 	return bus_space_read_1(memt, memh, offset);
    203 }
    204 
    205 static inline void
    206 gftfb_write1(struct gftfb_softc *sc, uint32_t offset, uint8_t val)
    207 {
    208 	struct sti_rom *rom = sc->sc_base.sc_rom;
    209 	bus_space_tag_t memt = rom->memt;
    210 	bus_space_handle_t memh = rom->regh[2];
    211 	bus_space_write_1(memt, memh, offset, val);
    212 }
    213 
    214 void
    215 gftfb_attach(device_t parent, device_t self, void *aux)
    216 {
    217 	struct gftfb_softc *sc = device_private(self);
    218 	struct pci_attach_args *paa = aux;
    219 	struct sti_rom *rom;
    220 	struct rasops_info *ri;
    221 	struct wsemuldisplaydev_attach_args aa;
    222 	unsigned long defattr = 0;
    223 	int ret, is_console = 0;
    224 
    225 	sc->sc_dev = self;
    226 
    227 	sc->sc_pc = paa->pa_pc;
    228 	sc->sc_tag = paa->pa_tag;
    229 	sc->sc_base.sc_dev = self;
    230 	sc->sc_base.sc_enable_rom = gftfb_enable_rom;
    231 	sc->sc_base.sc_disable_rom = gftfb_disable_rom;
    232 
    233 	/* we can *not* be interrupted when doing colour map accesses */
    234 	mutex_init(&sc->sc_hwlock, MUTEX_DEFAULT, IPL_HIGH);
    235 
    236 	aprint_normal("\n");
    237 
    238 	if (gftfb_check_rom(sc, paa) != 0)
    239 		return;
    240 
    241 	ret = sti_pci_is_console(paa, sc->sc_base. bases);
    242 	if (ret != 0) {
    243 		sc->sc_base.sc_flags |= STI_CONSOLE;
    244 		is_console = 1;
    245 	}
    246 	rom = (struct sti_rom *)kmem_zalloc(sizeof(*rom), KM_SLEEP);
    247 	rom->rom_softc = &sc->sc_base;
    248 	ret = sti_rom_setup(rom, paa->pa_iot, paa->pa_memt, sc->sc_romh,
    249 	    sc->sc_base.bases, STI_CODEBASE_MAIN);
    250 	if (ret != 0) {
    251 		kmem_free(rom, sizeof(*rom));
    252 		return;
    253 	}
    254 
    255 	sc->sc_base.sc_rom = rom;
    256 
    257 	sc->sc_scr.scr_rom = sc->sc_base.sc_rom;
    258 	ret = sti_screen_setup(&sc->sc_scr, STI_FBMODE);
    259 
    260 	sc->sc_width = sc->sc_scr.scr_cfg.scr_width;
    261 	sc->sc_height = sc->sc_scr.scr_cfg.scr_height;
    262 
    263 	aprint_normal_dev(sc->sc_dev, "%s at %dx%d\n", sc->sc_scr.name,
    264 	    sc->sc_width, sc->sc_height);
    265 	gftfb_setup(sc);
    266 
    267 #ifdef GFTFB_DEBUG
    268 	sc->sc_height -= 200;
    269 #endif
    270 
    271 	sc->sc_defaultscreen_descr = (struct wsscreen_descr){
    272 		"default",
    273 		0, 0,
    274 		NULL,
    275 		8, 16,
    276 		WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE |
    277 		      WSSCREEN_RESIZE,
    278 		NULL
    279 	};
    280 
    281 	sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
    282 	sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
    283 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    284 	sc->sc_locked = 0;
    285 
    286 	vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
    287 	    &gftfb_accessops);
    288 	sc->vd.init_screen = gftfb_init_screen;
    289 	sc->vd.show_screen_cookie = &sc->sc_gc;
    290 	sc->vd.show_screen_cb = glyphcache_adapt;
    291 
    292 	ri = &sc->sc_console_screen.scr_ri;
    293 
    294 	sc->sc_gc.gc_bitblt = gftfb_bitblt;
    295 	sc->sc_gc.gc_blitcookie = sc;
    296 	sc->sc_gc.gc_rop = RopSrc;
    297 
    298 	vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, &defattr);
    299 	sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    300 
    301 	sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
    302 	sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
    303 	sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
    304 	sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
    305 
    306 	glyphcache_init(&sc->sc_gc, sc->sc_height + 5,
    307 			sc->sc_scr.fbheight - sc->sc_height - 5,
    308 			sc->sc_scr.fbwidth,
    309 			ri->ri_font->fontwidth,
    310 			ri->ri_font->fontheight,
    311 			defattr);
    312 
    313 	gftfb_restore_palette(sc);
    314 	gftfb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height,
    315 	    ri->ri_devcmap[(defattr >> 16) & 0xff]);
    316 
    317 	if (is_console) {
    318 		wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
    319 		    defattr);
    320 
    321 		vcons_replay_msgbuf(&sc->sc_console_screen);
    322 	}
    323 
    324 	/* no suspend/resume support yet */
    325 	if (!pmf_device_register(sc->sc_dev, NULL, NULL))
    326 		aprint_error_dev(sc->sc_dev,
    327 		    "couldn't establish power handler\n");
    328 
    329 	aa.console = is_console;
    330 	aa.scrdata = &sc->sc_screenlist;
    331 	aa.accessops = &gftfb_accessops;
    332 	aa.accesscookie = &sc->vd;
    333 
    334 	config_found(sc->sc_dev, &aa, wsemuldisplaydevprint, CFARGS_NONE);
    335 }
    336 
    337 /*
    338  * Grovel the STI ROM image.
    339  */
    340 int
    341 gftfb_check_rom(struct gftfb_softc *spc, struct pci_attach_args *pa)
    342 {
    343 	struct sti_softc *sc = &spc->sc_base;
    344 	pcireg_t address, mask;
    345 	bus_space_handle_t romh;
    346 	bus_size_t romsize, subsize, stiromsize;
    347 	bus_addr_t selected, offs, suboffs;
    348 	uint32_t tmp;
    349 	int i;
    350 	int rc;
    351 
    352 	/* sort of inline sti_pci_enable_rom(sc) */
    353 	address = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    354 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM,
    355 	    ~PCI_MAPREG_ROM_ENABLE);
    356 	mask = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    357 	address |= PCI_MAPREG_ROM_ENABLE;
    358 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM, address);
    359 	sc->sc_flags |= STI_ROM_ENABLED;
    360 	/*
    361 	 * Map the complete ROM for now.
    362 	 */
    363 
    364 	romsize = PCI_ROM_SIZE(mask);
    365 	DPRINTF(("%s: mapping rom @ %lx for %lx\n", __func__,
    366 	    (long)PCI_MAPREG_ROM_ADDR(address), (long)romsize));
    367 
    368 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address), romsize,
    369 	    0, &romh);
    370 	if (rc != 0) {
    371 		aprint_error_dev(sc->sc_dev, "can't map PCI ROM (%d)\n", rc);
    372 		goto fail2;
    373 	}
    374 
    375 	gftfb_disable_rom_internal(spc);
    376 	/*
    377 	 * Iterate over the ROM images, pick the best candidate.
    378 	 */
    379 
    380 	selected = (bus_addr_t)-1;
    381 	for (offs = 0; offs < romsize; offs += subsize) {
    382 		gftfb_enable_rom_internal(spc);
    383 		/*
    384 		 * Check for a valid ROM header.
    385 		 */
    386 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 0);
    387 		tmp = le32toh(tmp);
    388 		if (tmp != 0x55aa0000) {
    389 			gftfb_disable_rom_internal(spc);
    390 			if (offs == 0) {
    391 				aprint_error_dev(sc->sc_dev,
    392 				    "invalid PCI ROM header signature (%08x)\n",
    393 				     tmp);
    394 				rc = EINVAL;
    395 			}
    396 			break;
    397 		}
    398 
    399 		/*
    400 		 * Check ROM type.
    401 		 */
    402 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 4);
    403 		tmp = le32toh(tmp);
    404 		if (tmp != 0x00000001) {	/* 1 == STI ROM */
    405 			gftfb_disable_rom_internal(spc);
    406 			if (offs == 0) {
    407 				aprint_error_dev(sc->sc_dev,
    408 				    "invalid PCI ROM type (%08x)\n", tmp);
    409 				rc = EINVAL;
    410 			}
    411 			break;
    412 		}
    413 
    414 		subsize = (bus_addr_t)bus_space_read_2(pa->pa_memt, romh,
    415 		    offs + 0x0c);
    416 		subsize <<= 9;
    417 
    418 #ifdef GFTFB_DEBUG
    419 		gftfb_disable_rom_internal(spc);
    420 		DPRINTF(("ROM offset %08x size %08x type %08x",
    421 		    (u_int)offs, (u_int)subsize, tmp));
    422 		gftfb_enable_rom_internal(spc);
    423 #endif
    424 
    425 		/*
    426 		 * Check for a valid ROM data structure.
    427 		 * We do not need it except to know what architecture the ROM
    428 		 * code is for.
    429 		 */
    430 
    431 		suboffs = offs +(bus_addr_t)bus_space_read_2(pa->pa_memt, romh,
    432 		    offs + 0x18);
    433 		tmp = bus_space_read_4(pa->pa_memt, romh, suboffs + 0);
    434 		tmp = le32toh(tmp);
    435 		if (tmp != 0x50434952) {	/* PCIR */
    436 			gftfb_disable_rom_internal(spc);
    437 			if (offs == 0) {
    438 				aprint_error_dev(sc->sc_dev, "invalid PCI data"
    439 				    " signature (%08x)\n", tmp);
    440 				rc = EINVAL;
    441 			} else {
    442 				DPRINTF((" invalid PCI data signature %08x\n",
    443 				    tmp));
    444 				continue;
    445 			}
    446 		}
    447 
    448 		tmp = bus_space_read_1(pa->pa_memt, romh, suboffs + 0x14);
    449 		gftfb_disable_rom_internal(spc);
    450 		DPRINTF((" code %02x", tmp));
    451 
    452 		switch (tmp) {
    453 #ifdef __hppa__
    454 		case 0x10:
    455 			if (selected == (bus_addr_t)-1)
    456 				selected = offs;
    457 			break;
    458 #endif
    459 #ifdef __i386__
    460 		case 0x00:
    461 			if (selected == (bus_addr_t)-1)
    462 				selected = offs;
    463 			break;
    464 #endif
    465 		default:
    466 			DPRINTF((" (wrong architecture)"));
    467 			break;
    468 		}
    469 		DPRINTF(("%s\n", selected == offs ? " -> SELECTED" : ""));
    470 	}
    471 
    472 	if (selected == (bus_addr_t)-1) {
    473 		if (rc == 0) {
    474 			aprint_error_dev(sc->sc_dev, "found no ROM with "
    475 			    "correct microcode architecture\n");
    476 			rc = ENOEXEC;
    477 		}
    478 		goto fail;
    479 	}
    480 
    481 	/*
    482 	 * Read the STI region BAR assignments.
    483 	 */
    484 
    485 	gftfb_enable_rom_internal(spc);
    486 	offs = selected +
    487 	    (bus_addr_t)bus_space_read_2(pa->pa_memt, romh, selected + 0x0e);
    488 	for (i = 0; i < STI_REGION_MAX; i++) {
    489 		rc = gftfb_readbar(sc, pa, i,
    490 		    bus_space_read_1(pa->pa_memt, romh, offs + i));
    491 		if (rc != 0)
    492 			goto fail;
    493 	}
    494 
    495 	/*
    496 	 * Find out where the STI ROM itself lies, and its size.
    497 	 */
    498 
    499 	offs = selected +
    500 	    (bus_addr_t)bus_space_read_4(pa->pa_memt, romh, selected + 0x08);
    501 	stiromsize = (bus_addr_t)bus_space_read_4(pa->pa_memt, romh,
    502 	    offs + 0x18);
    503 	stiromsize = le32toh(stiromsize);
    504 	gftfb_disable_rom_internal(spc);
    505 
    506 	/*
    507 	 * Replace our mapping with a smaller mapping of only the area
    508 	 * we are interested in.
    509 	 */
    510 
    511 	DPRINTF(("remapping rom @ %lx for %lx\n",
    512 	    (long)(PCI_MAPREG_ROM_ADDR(address) + offs), (long)stiromsize));
    513 	bus_space_unmap(pa->pa_memt, romh, romsize);
    514 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address) + offs,
    515 	    stiromsize, 0, &spc->sc_romh);
    516 	if (rc != 0) {
    517 		aprint_error_dev(sc->sc_dev, "can't map STI ROM (%d)\n",
    518 		    rc);
    519 		goto fail2;
    520 	}
    521  	gftfb_disable_rom_internal(spc);
    522 	sc->sc_flags &= ~STI_ROM_ENABLED;
    523 
    524 	return 0;
    525 
    526 fail:
    527 	bus_space_unmap(pa->pa_memt, romh, romsize);
    528 fail2:
    529 	gftfb_disable_rom_internal(spc);
    530 
    531 	return rc;
    532 }
    533 
    534 /*
    535  * Decode a BAR register.
    536  */
    537 int
    538 gftfb_readbar(struct sti_softc *sc, struct pci_attach_args *pa, u_int region,
    539     int bar)
    540 {
    541 	bus_addr_t addr;
    542 	bus_size_t size;
    543 	uint32_t cf;
    544 	int rc;
    545 
    546 	if (bar == 0) {
    547 		sc->bases[region] = 0;
    548 		return (0);
    549 	}
    550 
    551 #ifdef DIAGNOSTIC
    552 	if (bar < PCI_MAPREG_START || bar > PCI_MAPREG_PPB_END) {
    553 		gftfb_disable_rom(sc);
    554 		printf("%s: unexpected bar %02x for region %d\n",
    555 		    device_xname(sc->sc_dev), bar, region);
    556 		gftfb_enable_rom(sc);
    557 	}
    558 #endif
    559 
    560 	cf = pci_conf_read(pa->pa_pc, pa->pa_tag, bar);
    561 
    562 	rc = pci_mapreg_info(pa->pa_pc, pa->pa_tag, bar, PCI_MAPREG_TYPE(cf),
    563 	    &addr, &size, NULL);
    564 
    565 	if (rc != 0) {
    566 		gftfb_disable_rom(sc);
    567 		aprint_error_dev(sc->sc_dev, "invalid bar %02x for region %d\n",
    568 		    bar, region);
    569 		gftfb_enable_rom(sc);
    570 		return (rc);
    571 	}
    572 
    573 	sc->bases[region] = addr;
    574 	return (0);
    575 }
    576 
    577 /*
    578  * Enable PCI ROM.
    579  */
    580 void
    581 gftfb_enable_rom_internal(struct gftfb_softc *spc)
    582 {
    583 	pcireg_t address;
    584 
    585 	KASSERT(spc != NULL);
    586 
    587 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    588 	address |= PCI_MAPREG_ROM_ENABLE;
    589 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    590 }
    591 
    592 void
    593 gftfb_enable_rom(struct sti_softc *sc)
    594 {
    595 	struct gftfb_softc *spc = device_private(sc->sc_dev);
    596 
    597 	if (!ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    598 		gftfb_enable_rom_internal(spc);
    599 	}
    600 	SET(sc->sc_flags, STI_ROM_ENABLED);
    601 }
    602 
    603 /*
    604  * Disable PCI ROM.
    605  */
    606 void
    607 gftfb_disable_rom_internal(struct gftfb_softc *spc)
    608 {
    609 	pcireg_t address;
    610 
    611 	KASSERT(spc != NULL);
    612 
    613 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    614 	address &= ~PCI_MAPREG_ROM_ENABLE;
    615 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    616 }
    617 
    618 void
    619 gftfb_disable_rom(struct sti_softc *sc)
    620 {
    621 	struct gftfb_softc *spc = device_private(sc->sc_dev);
    622 
    623 	if (ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    624 		gftfb_disable_rom_internal(spc);
    625 	}
    626 	CLR(sc->sc_flags, STI_ROM_ENABLED);
    627 }
    628 
    629 static inline void
    630 gftfb_wait(struct gftfb_softc *sc)
    631 {
    632 	uint8_t stat;
    633 
    634 	do {
    635 		stat = gftfb_read1(sc, NGLE_REG_15b0);
    636 		if (stat == 0)
    637 			stat = gftfb_read1(sc, NGLE_REG_15b0);
    638 	} while (stat != 0);
    639 }
    640 
    641 static inline void
    642 gftfb_setup_fb(struct gftfb_softc *sc)
    643 {
    644 	gftfb_wait(sc);
    645 	gftfb_write4(sc, NGLE_REG_10,
    646 	    BA(IndexedDcd, Otc04, Ots08, AddrByte, 0, BINapp0I, 0));
    647 	gftfb_write4(sc, NGLE_REG_14, 0x83000300);
    648 	gftfb_wait(sc);
    649 	gftfb_write1(sc, NGLE_REG_16b1, 1);
    650 	sc->sc_hwmode = HW_FB;
    651 }
    652 
    653 void
    654 gftfb_setup(struct gftfb_softc *sc)
    655 {
    656 	struct sti_rom *rom = sc->sc_base.sc_rom;
    657 	bus_space_tag_t memt = rom->memt;
    658 	bus_space_handle_t memh = rom->regh[2];
    659 	int i;
    660 
    661 	sc->sc_hwmode = HW_FB;
    662 	sc->sc_hot_x = 0;
    663 	sc->sc_hot_y = 0;
    664 	sc->sc_enabled = 0;
    665 	sc->sc_video_on = 1;
    666 
    667 
    668 	/* set Bt458 read mask register to all planes */
    669 	gftfb_wait(sc);
    670 	ngle_bt458_write(memt, memh, 0x08, 0x04);
    671 	ngle_bt458_write(memt, memh, 0x0a, 0xff);
    672 
    673 	gftfb_setup_fb(sc);
    674 
    675 	/* attr. planes */
    676 	gftfb_wait(sc);
    677 	gftfb_write4(sc, NGLE_REG_11, 0x2ea0d000);
    678 	gftfb_write4(sc, NGLE_REG_14, 0x23000302);
    679 	gftfb_write4(sc, NGLE_REG_12, NGLE_ARTIST_CMAP0);
    680 	gftfb_write4(sc, NGLE_REG_8, 0xffffffff);
    681 
    682 	gftfb_wait(sc);
    683 	gftfb_write4(sc, NGLE_REG_6, 0x00000000);
    684 	gftfb_write4(sc, NGLE_REG_9,
    685 	    (sc->sc_scr.scr_cfg.scr_width << 16) | sc->sc_scr.scr_cfg.scr_height);
    686 	/*
    687 	 * blit into offscreen memory to force flush previous - apparently
    688 	 * some chips have a bug this works around
    689 	 */
    690 	gftfb_write4(sc, NGLE_REG_6, 0x05000000);
    691 	gftfb_write4(sc, NGLE_REG_9, 0x00040001);
    692 
    693 	gftfb_wait(sc);
    694 	gftfb_write4(sc, NGLE_REG_12, 0x00000000);
    695 
    696 	gftfb_setup_fb(sc);
    697 
    698 	/* make sure video output is enabled */
    699 	gftfb_wait(sc);
    700 	gftfb_write4(sc, NGLE_REG_21,
    701 	    gftfb_read4(sc, NGLE_REG_21) | 0x0a000000);
    702 	gftfb_write4(sc, NGLE_REG_27,
    703 	    gftfb_read4(sc, NGLE_REG_27) | 0x00800000);
    704 
    705 	/* initialize cursor sprite */
    706 	gftfb_wait(sc);
    707 
    708 	/* cursor mask */
    709 	gftfb_wait(sc);
    710 	gftfb_write4(sc, NGLE_REG_14, 0x300);
    711 	gftfb_write4(sc, NGLE_REG_13, 0xffffffff);
    712 	gftfb_write4(sc, NGLE_REG_11,
    713 	    BA(IndexedDcd, Otc32, 0, AddrLong, 0, BINcmask, 0));
    714 	gftfb_write4(sc, NGLE_REG_3, 0);
    715 	for (i = 0; i < 64; i++) {
    716 		gftfb_write4(sc, NGLE_REG_4, 0xffffffff);
    717 		gftfb_write4(sc, NGLE_REG_5, 0xffffffff);
    718 	}
    719 
    720 	/* cursor image */
    721 	gftfb_wait(sc);
    722 	gftfb_write4(sc, NGLE_REG_14, 0x300);
    723 	gftfb_write4(sc, NGLE_REG_13, 0xffffffff);
    724 	gftfb_write4(sc, NGLE_REG_11,
    725 	    BA(IndexedDcd, Otc32, 0, AddrLong, 0, BINcursor, 0));
    726 	gftfb_write4(sc, NGLE_REG_3, 0);
    727 	for (i = 0; i < 64; i++) {
    728 		gftfb_write4(sc, NGLE_REG_4, 0xff00ff00);
    729 		gftfb_write4(sc, NGLE_REG_5, 0xff00ff00);
    730 	}
    731 
    732 	/* colour map */
    733 	gftfb_wait(sc);
    734 	gftfb_write4(sc, NGLE_REG_10,
    735 	    BA(FractDcd, Otc24, Ots08, Addr24, 0, BINcmap, 0));
    736 	gftfb_write4(sc, NGLE_REG_14, 0x03000300);
    737 	gftfb_write4(sc, NGLE_REG_13, 0xffffffff);
    738 	gftfb_wait(sc);
    739 	gftfb_write4(sc, NGLE_REG_3, 0);
    740 	gftfb_write4(sc, NGLE_REG_4, 0);
    741 	gftfb_write4(sc, NGLE_REG_4, 0);
    742 	gftfb_write4(sc, NGLE_REG_4, 0x000000ff);	/* BG */
    743 	gftfb_write4(sc, NGLE_REG_4, 0x00ff0000);	/* FG */
    744 	gftfb_wait(sc);
    745 	gftfb_write4(sc, NGLE_REG_2, 0);
    746 	gftfb_write4(sc, NGLE_REG_26, 0x80008004);
    747 	gftfb_setup_fb(sc);
    748 
    749 	gftfb_move_cursor(sc, 100, 100);
    750 
    751 }
    752 
    753 static int
    754 gftfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
    755 	struct lwp *l)
    756 {
    757 	struct vcons_data *vd = v;
    758 	struct gftfb_softc *sc = vd->cookie;
    759 	struct wsdisplay_fbinfo *wdf;
    760 	struct vcons_screen *ms = vd->active;
    761 
    762 	switch (cmd) {
    763 	case WSDISPLAYIO_GTYPE:
    764 		*(u_int *)data = WSDISPLAY_TYPE_STI;
    765 		return 0;
    766 
    767 	case GCID:
    768 		*(u_int *)data = STI_DD_EG;
    769 		return 0;
    770 
    771 	/* PCI config read/write passthrough. */
    772 	case PCI_IOC_CFGREAD:
    773 	case PCI_IOC_CFGWRITE:
    774 		return pci_devioctl(sc->sc_pc, sc->sc_tag,
    775 		    cmd, data, flag, l);
    776 
    777 	case WSDISPLAYIO_GET_BUSID:
    778 		return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
    779 		    sc->sc_tag, data);
    780 
    781 	case WSDISPLAYIO_GINFO:
    782 		if (ms == NULL)
    783 			return ENODEV;
    784 		wdf = (void *)data;
    785 		wdf->height = ms->scr_ri.ri_height;
    786 		wdf->width = ms->scr_ri.ri_width;
    787 		wdf->depth = ms->scr_ri.ri_depth;
    788 		wdf->cmsize = 256;
    789 		return 0;
    790 
    791 	case WSDISPLAYIO_GETCMAP:
    792 		return gftfb_getcmap(sc,
    793 		    (struct wsdisplay_cmap *)data);
    794 
    795 	case WSDISPLAYIO_PUTCMAP:
    796 		return gftfb_putcmap(sc,
    797 		    (struct wsdisplay_cmap *)data);
    798 
    799 	case WSDISPLAYIO_LINEBYTES:
    800 		*(u_int *)data = 2048;
    801 		return 0;
    802 
    803 	case WSDISPLAYIO_SMODE: {
    804 		int new_mode = *(int*)data;
    805 		if (new_mode != sc->sc_mode) {
    806 			sc->sc_mode = new_mode;
    807 			if(new_mode == WSDISPLAYIO_MODE_EMUL) {
    808 				gftfb_setup(sc);
    809 				gftfb_restore_palette(sc);
    810 				glyphcache_wipe(&sc->sc_gc);
    811 				gftfb_rectfill(sc, 0, 0, sc->sc_width,
    812 				    sc->sc_height, ms->scr_ri.ri_devcmap[
    813 				    (ms->scr_defattr >> 16) & 0xff]);
    814 				vcons_redraw_screen(ms);
    815 				gftfb_set_video(sc, 1);
    816 			}
    817 		}
    818 		}
    819 		return 0;
    820 
    821 	case WSDISPLAYIO_GET_FBINFO:
    822 		{
    823 			struct wsdisplayio_fbinfo *fbi = data;
    824 			int ret;
    825 
    826 			ret = wsdisplayio_get_fbinfo(&ms->scr_ri, fbi);
    827 			fbi->fbi_fbsize = sc->sc_scr.fbheight * 2048;
    828 			return ret;
    829 		}
    830 
    831 	case WSDISPLAYIO_GCURPOS:
    832 		{
    833 			struct wsdisplay_curpos *cp = (void *)data;
    834 
    835 			cp->x = sc->sc_cursor_x;
    836 			cp->y = sc->sc_cursor_y;
    837 		}
    838 		return 0;
    839 
    840 	case WSDISPLAYIO_SCURPOS:
    841 		{
    842 			struct wsdisplay_curpos *cp = (void *)data;
    843 
    844 			gftfb_move_cursor(sc, cp->x, cp->y);
    845 		}
    846 		return 0;
    847 
    848 	case WSDISPLAYIO_GCURMAX:
    849 		{
    850 			struct wsdisplay_curpos *cp = (void *)data;
    851 
    852 			cp->x = 64;
    853 			cp->y = 64;
    854 		}
    855 		return 0;
    856 
    857 	case WSDISPLAYIO_SCURSOR:
    858 		{
    859 			struct wsdisplay_cursor *cursor = (void *)data;
    860 
    861 			return gftfb_do_cursor(sc, cursor);
    862 		}
    863 
    864 	case WSDISPLAYIO_SVIDEO:
    865 		gftfb_set_video(sc, *(int *)data);
    866 		return 0;
    867 	case WSDISPLAYIO_GVIDEO:
    868 		*(u_int *)data = sc->sc_video_on ?
    869 		    WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF;
    870 		return 0;
    871 	}
    872 	return EPASSTHROUGH;
    873 }
    874 
    875 static paddr_t
    876 gftfb_mmap(void *v, void *vs, off_t offset, int prot)
    877 {
    878 	struct vcons_data *vd = v;
    879 	struct gftfb_softc *sc = vd->cookie;
    880 	struct sti_rom *rom = sc->sc_base.sc_rom;
    881 	paddr_t pa = -1;
    882 
    883 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)
    884 		return -1;
    885 
    886 	if (offset >= 0 && offset < sc->sc_scr.fblen) {
    887 		/* framebuffer */
    888 		pa = bus_space_mmap(rom->memt, sc->sc_scr.fbaddr, offset,
    889 		    prot, BUS_SPACE_MAP_LINEAR);
    890 	} else if (offset >= 0x80000000 && offset < 0x80400000) {
    891 		/* blitter registers etc. */
    892 		pa = bus_space_mmap(rom->memt, rom->regh[2],
    893 		    offset - 0x80000000, prot, BUS_SPACE_MAP_LINEAR);
    894 	}
    895 
    896 	return pa;
    897 }
    898 
    899 static void
    900 gftfb_init_screen(void *cookie, struct vcons_screen *scr,
    901     int existing, long *defattr)
    902 {
    903 	struct gftfb_softc *sc = cookie;
    904 	struct rasops_info *ri = &scr->scr_ri;
    905 
    906 	ri->ri_depth = 8;
    907 	ri->ri_width = sc->sc_width;
    908 	ri->ri_height = sc->sc_height;
    909 	ri->ri_stride = 2048;
    910 	ri->ri_flg = RI_CENTER | RI_8BIT_IS_RGB |
    911 		     RI_ENABLE_ALPHA | RI_PREFER_ALPHA;
    912 
    913 	ri->ri_bits = (void *)sc->sc_scr.fbaddr;
    914 	rasops_init(ri, 0, 0);
    915 	ri->ri_caps = WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE |
    916 		      WSSCREEN_RESIZE;
    917 	scr->scr_flags |= VCONS_LOADFONT;
    918 
    919 	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
    920 		    sc->sc_width / ri->ri_font->fontwidth);
    921 
    922 	ri->ri_hw = scr;
    923 	sc->sc_putchar = ri->ri_ops.putchar;
    924 	ri->ri_ops.copyrows = gftfb_copyrows;
    925 	ri->ri_ops.copycols = gftfb_copycols;
    926 	ri->ri_ops.eraserows = gftfb_eraserows;
    927 	ri->ri_ops.erasecols = gftfb_erasecols;
    928 	ri->ri_ops.cursor = gftfb_cursor;
    929 	if (FONT_IS_ALPHA(ri->ri_font)) {
    930 		ri->ri_ops.putchar = gftfb_putchar_aa;
    931 	} else
    932 		ri->ri_ops.putchar = gftfb_putchar;
    933 }
    934 
    935 static int
    936 gftfb_putcmap(struct gftfb_softc *sc, struct wsdisplay_cmap *cm)
    937 {
    938 	u_char *r, *g, *b;
    939 	u_int index = cm->index;
    940 	u_int count = cm->count;
    941 	int i, error;
    942 	u_char rbuf[256], gbuf[256], bbuf[256];
    943 
    944 	if (cm->index >= 256 || cm->count > 256 ||
    945 	    (cm->index + cm->count) > 256)
    946 		return EINVAL;
    947 	error = copyin(cm->red, &rbuf[index], count);
    948 	if (error)
    949 		return error;
    950 	error = copyin(cm->green, &gbuf[index], count);
    951 	if (error)
    952 		return error;
    953 	error = copyin(cm->blue, &bbuf[index], count);
    954 	if (error)
    955 		return error;
    956 
    957 	memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
    958 	memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
    959 	memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
    960 
    961 	r = &sc->sc_cmap_red[index];
    962 	g = &sc->sc_cmap_green[index];
    963 	b = &sc->sc_cmap_blue[index];
    964 
    965 	for (i = 0; i < count; i++) {
    966 		gftfb_putpalreg(sc, index, *r, *g, *b);
    967 		index++;
    968 		r++, g++, b++;
    969 	}
    970 	return 0;
    971 }
    972 
    973 static int
    974 gftfb_getcmap(struct gftfb_softc *sc, struct wsdisplay_cmap *cm)
    975 {
    976 	u_int index = cm->index;
    977 	u_int count = cm->count;
    978 	int error;
    979 
    980 	if (index >= 255 || count > 256 || index + count > 256)
    981 		return EINVAL;
    982 
    983 	error = copyout(&sc->sc_cmap_red[index],   cm->red,   count);
    984 	if (error)
    985 		return error;
    986 	error = copyout(&sc->sc_cmap_green[index], cm->green, count);
    987 	if (error)
    988 		return error;
    989 	error = copyout(&sc->sc_cmap_blue[index],  cm->blue,  count);
    990 	if (error)
    991 		return error;
    992 
    993 	return 0;
    994 }
    995 
    996 static void
    997 gftfb_restore_palette(struct gftfb_softc *sc)
    998 {
    999 	uint8_t cmap[768];
   1000 	int i, j;
   1001 
   1002 	j = 0;
   1003 	rasops_get_cmap(&sc->sc_console_screen.scr_ri, cmap, sizeof(cmap));
   1004 	for (i = 0; i < 256; i++) {
   1005 		sc->sc_cmap_red[i] = cmap[j];
   1006 		sc->sc_cmap_green[i] = cmap[j + 1];
   1007 		sc->sc_cmap_blue[i] = cmap[j + 2];
   1008 		gftfb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
   1009 		j += 3;
   1010 	}
   1011 }
   1012 
   1013 static int
   1014 gftfb_putpalreg(struct gftfb_softc *sc, uint8_t idx, uint8_t r, uint8_t g,
   1015     uint8_t b)
   1016 {
   1017 	mutex_enter(&sc->sc_hwlock);
   1018 	gftfb_wait(sc);
   1019 	gftfb_write4(sc, NGLE_REG_10,
   1020 	    BA(FractDcd, Otc24, Ots08, Addr24, 0, BINcmap, 0));
   1021 	gftfb_write4(sc, NGLE_REG_14, 0x03000300);
   1022 	gftfb_write4(sc, NGLE_REG_13, 0xffffffff);
   1023 
   1024 	gftfb_wait(sc);
   1025 	gftfb_write4(sc, NGLE_REG_3, 0x400 | (idx << 2));
   1026 	gftfb_write4(sc, NGLE_REG_4, (r << 16) | (g << 8) | b);
   1027 
   1028 	gftfb_write4(sc, NGLE_REG_2, 0x400);
   1029 	gftfb_write4(sc, NGLE_REG_26, 0x80000100);
   1030 	gftfb_setup_fb(sc);
   1031 	mutex_exit(&sc->sc_hwlock);
   1032 	return 0;
   1033 }
   1034 
   1035 static inline void
   1036 gftfb_wait_fifo(struct gftfb_softc *sc, uint32_t slots)
   1037 {
   1038 	uint32_t reg;
   1039 
   1040 	do {
   1041 		reg = gftfb_read4(sc, NGLE_REG_34);
   1042 	} while (reg < slots);
   1043 }
   1044 
   1045 static inline void
   1046 gftfb_fillmode(struct gftfb_softc *sc)
   1047 {
   1048 	if (sc->sc_hwmode != HW_FILL) {
   1049 		gftfb_wait_fifo(sc, 3);
   1050 		/* plane mask */
   1051 		gftfb_write4(sc, NGLE_REG_13, 0xff);
   1052 		/* bitmap op */
   1053 		gftfb_write4(sc, NGLE_REG_14,
   1054 		    IBOvals(RopSrc, 0, BitmapExtent08, 1, DataDynamic, 0,
   1055 		        0, 0));
   1056 		/* dst bitmap access */
   1057 		gftfb_write4(sc, NGLE_REG_11,
   1058 		    BA(IndexedDcd, Otc32, OtsIndirect, AddrLong, 0, BINapp0I,
   1059 			0));
   1060 		sc->sc_hwmode = HW_FILL;
   1061 	}
   1062 }
   1063 
   1064 static void
   1065 gftfb_rectfill(struct gftfb_softc *sc, int x, int y, int wi, int he,
   1066 		      uint32_t bg)
   1067 {
   1068 	gftfb_fillmode(sc);
   1069 
   1070 	gftfb_wait_fifo(sc, 4);
   1071 
   1072 	/* transfer data */
   1073 	gftfb_write4(sc, NGLE_REG_8, 0xffffffff);
   1074 	gftfb_write4(sc, NGLE_REG_35, bg);
   1075 	/* dst XY */
   1076 	gftfb_write4(sc, NGLE_REG_6, (x << 16) | y);
   1077 	/* len XY start */
   1078 	gftfb_write4(sc, NGLE_REG_9, (wi << 16) | he);
   1079 
   1080 }
   1081 
   1082 static void
   1083 gftfb_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
   1084 			    int he, int rop)
   1085 {
   1086 	struct gftfb_softc *sc = cookie;
   1087 
   1088 	if (sc->sc_hwmode != HW_BLIT) {
   1089 		gftfb_wait(sc);
   1090 		gftfb_write4(sc, NGLE_REG_10,
   1091 		    BA(IndexedDcd, Otc04, Ots08, AddrLong, 0, BINapp0I, 0));
   1092 		sc->sc_hwmode = HW_BLIT;
   1093 	}
   1094 	gftfb_wait_fifo(sc, 5);
   1095 	gftfb_write4(sc, NGLE_REG_14,
   1096 	   IBOvals(rop, 0, BitmapExtent08, 1, DataDynamic, MaskOtc, 0, 0));
   1097 	gftfb_write4(sc, NGLE_REG_13, 0xff);
   1098 	gftfb_write4(sc, NGLE_REG_24, (xs << 16) | ys);
   1099 	gftfb_write4(sc, NGLE_REG_7, (wi << 16) | he);
   1100 	gftfb_write4(sc, NGLE_REG_25, (xd << 16) | yd);
   1101 }
   1102 
   1103 static void
   1104 gftfb_nuke_cursor(struct rasops_info *ri)
   1105 {
   1106 	struct vcons_screen *scr = ri->ri_hw;
   1107 	struct gftfb_softc *sc = scr->scr_cookie;
   1108 	int wi, he, x, y;
   1109 
   1110 	if (ri->ri_flg & RI_CURSOR) {
   1111 		wi = ri->ri_font->fontwidth;
   1112 		he = ri->ri_font->fontheight;
   1113 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1114 		y = ri->ri_crow * he + ri->ri_yorigin;
   1115 		gftfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1116 		ri->ri_flg &= ~RI_CURSOR;
   1117 	}
   1118 }
   1119 
   1120 static void
   1121 gftfb_cursor(void *cookie, int on, int row, int col)
   1122 {
   1123 	struct rasops_info *ri = cookie;
   1124 	struct vcons_screen *scr = ri->ri_hw;
   1125 	struct gftfb_softc *sc = scr->scr_cookie;
   1126 	int x, y, wi, he;
   1127 
   1128 	wi = ri->ri_font->fontwidth;
   1129 	he = ri->ri_font->fontheight;
   1130 
   1131 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1132 		if (on) {
   1133 			if (ri->ri_flg & RI_CURSOR) {
   1134 				gftfb_nuke_cursor(ri);
   1135 			}
   1136 			x = col * wi + ri->ri_xorigin;
   1137 			y = row * he + ri->ri_yorigin;
   1138 			gftfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1139 			ri->ri_flg |= RI_CURSOR;
   1140 		}
   1141 		ri->ri_crow = row;
   1142 		ri->ri_ccol = col;
   1143 	} else
   1144 	{
   1145 		ri->ri_crow = row;
   1146 		ri->ri_ccol = col;
   1147 		ri->ri_flg &= ~RI_CURSOR;
   1148 	}
   1149 
   1150 }
   1151 
   1152 static void
   1153 gftfb_putchar(void *cookie, int row, int col, u_int c, long attr)
   1154 {
   1155 	struct rasops_info *ri = cookie;
   1156 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1157 	struct vcons_screen *scr = ri->ri_hw;
   1158 	struct gftfb_softc *sc = scr->scr_cookie;
   1159 	void *data;
   1160 	int i, x, y, wi, he, rv = GC_NOPE;
   1161 	uint32_t bg, fg, mask;
   1162 
   1163 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1164 		return;
   1165 
   1166 	if (!CHAR_IN_FONT(c, font))
   1167 		return;
   1168 
   1169 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1170 		ri->ri_flg &= ~RI_CURSOR;
   1171 	}
   1172 
   1173 	wi = font->fontwidth;
   1174 	he = font->fontheight;
   1175 
   1176 	x = ri->ri_xorigin + col * wi;
   1177 	y = ri->ri_yorigin + row * he;
   1178 
   1179 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1180 
   1181 	/* if we're drawing a space we're done here */
   1182 	if (c == 0x20) {
   1183 		gftfb_rectfill(sc, x, y, wi, he, bg);
   1184 		return;
   1185 	}
   1186 
   1187 
   1188 	rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
   1189 	if (rv == GC_OK)
   1190 		return;
   1191 
   1192 	data = WSFONT_GLYPH(c, font);
   1193 	fg = ri->ri_devcmap[(attr >> 24) & 0x0f];
   1194 
   1195 	gftfb_fillmode(sc);
   1196 	gftfb_wait_fifo(sc, 3);
   1197 
   1198 	/* character colour */
   1199 	gftfb_write4(sc, NGLE_REG_35, fg);
   1200 	gftfb_write4(sc, NGLE_REG_36, bg);
   1201 	/* dst XY */
   1202 	gftfb_write4(sc, NGLE_REG_6, (x << 16) | y);
   1203 
   1204 	if (ri->ri_font->stride == 1) {
   1205 		uint8_t *data8 = data;
   1206 		for (i = 0; i < he; i++) {
   1207 			gftfb_wait_fifo(sc, 2);
   1208 			mask = *data8;
   1209 			gftfb_write4(sc, NGLE_REG_8, mask << 24);
   1210 			gftfb_write4(sc, NGLE_REG_9, (wi << 16) | 1);
   1211 			data8++;
   1212 		}
   1213 	} else {
   1214 		uint16_t *data16 = data;
   1215 		for (i = 0; i < he; i++) {
   1216 			gftfb_wait_fifo(sc, 2);
   1217 			mask = *data16;
   1218 			gftfb_write4(sc, NGLE_REG_8, mask << 16);
   1219 			gftfb_write4(sc, NGLE_REG_9, (wi << 16) | 1);
   1220 			data16++;
   1221 		}
   1222 	}
   1223 
   1224 	if (rv == GC_ADD)
   1225 		glyphcache_add(&sc->sc_gc, c, x, y);
   1226 }
   1227 
   1228 static void
   1229 gftfb_putchar_aa(void *cookie, int row, int col, u_int c, long attr)
   1230 {
   1231 	struct rasops_info *ri = cookie;
   1232 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1233 	struct vcons_screen *scr = ri->ri_hw;
   1234 	struct gftfb_softc *sc = scr->scr_cookie;
   1235 	int x, y, wi, he, rv = GC_NOPE;
   1236 	uint32_t bg;
   1237 
   1238 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1239 		return;
   1240 
   1241 	if (!CHAR_IN_FONT(c, font))
   1242 		return;
   1243 
   1244 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1245 		ri->ri_flg &= ~RI_CURSOR;
   1246 	}
   1247 
   1248 	wi = font->fontwidth;
   1249 	he = font->fontheight;
   1250 
   1251 	x = ri->ri_xorigin + col * wi;
   1252 	y = ri->ri_yorigin + row * he;
   1253 
   1254 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1255 
   1256 	if (c == 0x20) {
   1257 		gftfb_rectfill(sc, x, y, wi, he, bg);
   1258 		return;
   1259 	}
   1260 
   1261 	rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
   1262 	if (rv == GC_OK)
   1263 		return;
   1264 
   1265 	if (sc->sc_hwmode != HW_FB) gftfb_setup_fb(sc);
   1266 	sc->sc_putchar(cookie, row, col, c, attr);
   1267 
   1268 	if (rv == GC_ADD)
   1269 		glyphcache_add(&sc->sc_gc, c, x, y);
   1270 }
   1271 
   1272 static void
   1273 gftfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1274 {
   1275 	struct rasops_info *ri = cookie;
   1276 	struct vcons_screen *scr = ri->ri_hw;
   1277 	struct gftfb_softc *sc = scr->scr_cookie;
   1278 	int32_t xs, xd, y, width, height;
   1279 
   1280 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1281 		if (ri->ri_crow == row &&
   1282 		   (ri->ri_ccol >= srccol && ri->ri_ccol < (srccol + ncols)) &&
   1283 		   (ri->ri_flg & RI_CURSOR)) {
   1284 			gftfb_nuke_cursor(ri);
   1285 		}
   1286 
   1287 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   1288 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   1289 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1290 		width = ri->ri_font->fontwidth * ncols;
   1291 		height = ri->ri_font->fontheight;
   1292 		gftfb_bitblt(sc, xs, y, xd, y, width, height, RopSrc);
   1293 		if (ri->ri_crow == row &&
   1294 		   (ri->ri_ccol >= dstcol && ri->ri_ccol < (dstcol + ncols)))
   1295 			ri->ri_flg &= ~RI_CURSOR;
   1296 	}
   1297 }
   1298 
   1299 static void
   1300 gftfb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
   1301 {
   1302 	struct rasops_info *ri = cookie;
   1303 	struct vcons_screen *scr = ri->ri_hw;
   1304 	struct gftfb_softc *sc = scr->scr_cookie;
   1305 	int32_t x, y, width, height, fg, bg, ul;
   1306 
   1307 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1308 		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   1309 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1310 		width = ri->ri_font->fontwidth * ncols;
   1311 		height = ri->ri_font->fontheight;
   1312 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   1313 
   1314 		gftfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
   1315 		if (ri->ri_crow == row &&
   1316 		   (ri->ri_ccol >= startcol && ri->ri_ccol < (startcol + ncols)))
   1317 			ri->ri_flg &= ~RI_CURSOR;
   1318 	}
   1319 }
   1320 
   1321 static void
   1322 gftfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   1323 {
   1324 	struct rasops_info *ri = cookie;
   1325 	struct vcons_screen *scr = ri->ri_hw;
   1326 	struct gftfb_softc *sc = scr->scr_cookie;
   1327 	int32_t x, ys, yd, width, height;
   1328 
   1329 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1330 		if ((ri->ri_crow >= srcrow && ri->ri_crow < (srcrow + nrows)) &&
   1331 		   (ri->ri_flg & RI_CURSOR)) {
   1332 			gftfb_nuke_cursor(ri);
   1333 		}
   1334 		x = ri->ri_xorigin;
   1335 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   1336 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   1337 		width = ri->ri_emuwidth;
   1338 		height = ri->ri_font->fontheight * nrows;
   1339 		gftfb_bitblt(sc, x, ys, x, yd, width, height, RopSrc);
   1340 		if (ri->ri_crow >= dstrow && ri->ri_crow < (dstrow + nrows))
   1341 			ri->ri_flg &= ~RI_CURSOR;
   1342 	}
   1343 }
   1344 
   1345 static void
   1346 gftfb_eraserows(void *cookie, int row, int nrows, long fillattr)
   1347 {
   1348 	struct rasops_info *ri = cookie;
   1349 	struct vcons_screen *scr = ri->ri_hw;
   1350 	struct gftfb_softc *sc = scr->scr_cookie;
   1351 	int32_t x, y, width, height, fg, bg, ul;
   1352 
   1353 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1354 		x = ri->ri_xorigin;
   1355 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1356 		width = ri->ri_emuwidth;
   1357 		height = ri->ri_font->fontheight * nrows;
   1358 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   1359 
   1360 		gftfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
   1361 
   1362 		if (ri->ri_crow >= row && ri->ri_crow < (row + nrows))
   1363 			ri->ri_flg &= ~RI_CURSOR;
   1364 	}
   1365 }
   1366 
   1367 /*
   1368  * cursor sprite handling
   1369  * like most hw info, xf86 3.3 -> nglehdw.h was used as documentation
   1370  * problem is, the PCI EG doesn't quite behave like an S9000_ID_ARTIST
   1371  * the cursor position register behaves like the one on HCRX while using
   1372  * the same address as Artist, incuding the enable bit and weird handling
   1373  * of negative coordinates. The rest of it, colour map, sprite image etc.,
   1374  * behave like Artist.
   1375  */
   1376 
   1377 static void
   1378 gftfb_move_cursor(struct gftfb_softc *sc, int x, int y)
   1379 {
   1380 	uint32_t pos;
   1381 
   1382 	sc->sc_cursor_x = x;
   1383 	x -= sc->sc_hot_x;
   1384 	sc->sc_cursor_y = y;
   1385 	y -= sc->sc_hot_y;
   1386 
   1387 	if (x < 0) x = 0x1000 - x;
   1388 	if (y < 0) y = 0x1000 - y;
   1389 	pos = (x << 16) | y;
   1390 	if (sc->sc_enabled) pos |= 0x80000000;
   1391 	gftfb_wait_fifo(sc, 2);
   1392 	gftfb_write4(sc, NGLE_REG_17, pos);
   1393 }
   1394 
   1395 static int
   1396 gftfb_do_cursor(struct gftfb_softc *sc, struct wsdisplay_cursor *cur)
   1397 {
   1398 	if (cur->which & WSDISPLAY_CURSOR_DOCUR) {
   1399 
   1400 		sc->sc_enabled = cur->enable;
   1401 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1402 	}
   1403 	if (cur->which & WSDISPLAY_CURSOR_DOHOT) {
   1404 
   1405 		sc->sc_hot_x = cur->hot.x;
   1406 		sc->sc_hot_y = cur->hot.y;
   1407 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1408 	}
   1409 	if (cur->which & WSDISPLAY_CURSOR_DOPOS) {
   1410 
   1411 		gftfb_move_cursor(sc, cur->pos.x, cur->pos.y);
   1412 	}
   1413 	if (cur->which & WSDISPLAY_CURSOR_DOCMAP) {
   1414 		uint32_t rgb;
   1415 		uint8_t r[2], g[2], b[2];
   1416 
   1417 		copyin(cur->cmap.blue, b, 2);
   1418 		copyin(cur->cmap.green, g, 2);
   1419 		copyin(cur->cmap.red, r, 2);
   1420 		mutex_enter(&sc->sc_hwlock);
   1421 		gftfb_wait(sc);
   1422 		gftfb_write4(sc, NGLE_REG_10,
   1423 		    BA(FractDcd, Otc24, Ots08, Addr24, 0, BINcmap, 0));
   1424 		gftfb_write4(sc, NGLE_REG_14, 0x03000300);
   1425 		gftfb_write4(sc, NGLE_REG_13, 0xffffffff);
   1426 		gftfb_wait(sc);
   1427 		gftfb_write4(sc, NGLE_REG_3, 0);
   1428 		gftfb_write4(sc, NGLE_REG_4, 0);
   1429 		gftfb_write4(sc, NGLE_REG_4, 0);
   1430 		rgb = (r[0] << 16) | (g[0] << 8) | b[0];
   1431 		gftfb_write4(sc, NGLE_REG_4, rgb);	/* BG */
   1432 		rgb = (r[1] << 16) | (g[1] << 8) | b[1];
   1433 		gftfb_write4(sc, NGLE_REG_4, rgb);	/* FG */
   1434 		gftfb_write4(sc, NGLE_REG_2, 0);
   1435 		gftfb_write4(sc, NGLE_REG_26, 0x80008004);
   1436 		gftfb_setup_fb(sc);
   1437 		mutex_exit(&sc->sc_hwlock);
   1438 
   1439 	}
   1440 	if (cur->which & WSDISPLAY_CURSOR_DOSHAPE) {
   1441 		uint32_t buffer[128], latch, tmp;
   1442 		int i;
   1443 
   1444 		copyin(cur->mask, buffer, 512);
   1445 		gftfb_wait(sc);
   1446 		gftfb_write4(sc, NGLE_REG_14, 0x300);
   1447 		gftfb_write4(sc, NGLE_REG_13, 0xffffffff);
   1448 		gftfb_write4(sc, NGLE_REG_11,
   1449 		    BA(IndexedDcd, Otc32, 0, AddrLong, 0, BINcmask, 0));
   1450 		gftfb_write4(sc, NGLE_REG_3, 0);
   1451 		for (i = 0; i < 128; i += 2) {
   1452 			latch = 0;
   1453 			tmp = buffer[i] & 0x80808080;
   1454 			latch |= tmp >> 7;
   1455 			tmp = buffer[i] & 0x40404040;
   1456 			latch |= tmp >> 5;
   1457 			tmp = buffer[i] & 0x20202020;
   1458 			latch |= tmp >> 3;
   1459 			tmp = buffer[i] & 0x10101010;
   1460 			latch |= tmp >> 1;
   1461 			tmp = buffer[i] & 0x08080808;
   1462 			latch |= tmp << 1;
   1463 			tmp = buffer[i] & 0x04040404;
   1464 			latch |= tmp << 3;
   1465 			tmp = buffer[i] & 0x02020202;
   1466 			latch |= tmp << 5;
   1467 			tmp = buffer[i] & 0x01010101;
   1468 			latch |= tmp << 7;
   1469 			gftfb_write4(sc, NGLE_REG_4, latch);
   1470 			latch = 0;
   1471 			tmp = buffer[i + 1] & 0x80808080;
   1472 			latch |= tmp >> 7;
   1473 			tmp = buffer[i + 1] & 0x40404040;
   1474 			latch |= tmp >> 5;
   1475 			tmp = buffer[i + 1] & 0x20202020;
   1476 			latch |= tmp >> 3;
   1477 			tmp = buffer[i + 1] & 0x10101010;
   1478 			latch |= tmp >> 1;
   1479 			tmp = buffer[i + 1] & 0x08080808;
   1480 			latch |= tmp << 1;
   1481 			tmp = buffer[i + 1] & 0x04040404;
   1482 			latch |= tmp << 3;
   1483 			tmp = buffer[i + 1] & 0x02020202;
   1484 			latch |= tmp << 5;
   1485 			tmp = buffer[i + 1] & 0x01010101;
   1486 			latch |= tmp << 7;
   1487 			gftfb_write4(sc, NGLE_REG_5, latch);
   1488 		}
   1489 
   1490 		copyin(cur->image, buffer, 512);
   1491 		gftfb_wait(sc);
   1492 		gftfb_write4(sc, NGLE_REG_14, 0x300);
   1493 		gftfb_write4(sc, NGLE_REG_13, 0xffffffff);
   1494 		gftfb_write4(sc, NGLE_REG_11,
   1495 		    BA(IndexedDcd, Otc32, 0, AddrLong, 0, BINcursor, 0));
   1496 		gftfb_write4(sc, NGLE_REG_3, 0);
   1497 		for (i = 0; i < 128; i += 2) {
   1498 			latch = 0;
   1499 			tmp = buffer[i] & 0x80808080;
   1500 			latch |= tmp >> 7;
   1501 			tmp = buffer[i] & 0x40404040;
   1502 			latch |= tmp >> 5;
   1503 			tmp = buffer[i] & 0x20202020;
   1504 			latch |= tmp >> 3;
   1505 			tmp = buffer[i] & 0x10101010;
   1506 			latch |= tmp >> 1;
   1507 			tmp = buffer[i] & 0x08080808;
   1508 			latch |= tmp << 1;
   1509 			tmp = buffer[i] & 0x04040404;
   1510 			latch |= tmp << 3;
   1511 			tmp = buffer[i] & 0x02020202;
   1512 			latch |= tmp << 5;
   1513 			tmp = buffer[i] & 0x01010101;
   1514 			latch |= tmp << 7;
   1515 			gftfb_write4(sc, NGLE_REG_4, latch);
   1516 			latch = 0;
   1517 			tmp = buffer[i + 1] & 0x80808080;
   1518 			latch |= tmp >> 7;
   1519 			tmp = buffer[i + 1] & 0x40404040;
   1520 			latch |= tmp >> 5;
   1521 			tmp = buffer[i + 1] & 0x20202020;
   1522 			latch |= tmp >> 3;
   1523 			tmp = buffer[i + 1] & 0x10101010;
   1524 			latch |= tmp >> 1;
   1525 			tmp = buffer[i + 1] & 0x08080808;
   1526 			latch |= tmp << 1;
   1527 			tmp = buffer[i + 1] & 0x04040404;
   1528 			latch |= tmp << 3;
   1529 			tmp = buffer[i + 1] & 0x02020202;
   1530 			latch |= tmp << 5;
   1531 			tmp = buffer[i + 1] & 0x01010101;
   1532 			latch |= tmp << 7;
   1533 			gftfb_write4(sc, NGLE_REG_5, latch);
   1534 		}
   1535 		gftfb_setup_fb(sc);
   1536 	}
   1537 
   1538 	return 0;
   1539 }
   1540 
   1541 static void
   1542 gftfb_set_video(struct gftfb_softc *sc, int on)
   1543 {
   1544 	if (sc->sc_video_on == on)
   1545 		return;
   1546 
   1547 	sc->sc_video_on = on;
   1548 
   1549 	gftfb_wait(sc);
   1550 	if (on) {
   1551 		gftfb_write4(sc, NGLE_REG_21,
   1552 		    gftfb_read4(sc, NGLE_REG_21) | 0x0a000000);
   1553 		gftfb_write4(sc, NGLE_REG_27,
   1554 		    gftfb_read4(sc, NGLE_REG_27) | 0x00800000);
   1555 	} else {
   1556 		gftfb_write4(sc, NGLE_REG_21,
   1557 		    gftfb_read4(sc, NGLE_REG_21) &  ~0x0a000000);
   1558 		gftfb_write4(sc, NGLE_REG_27,
   1559 		    gftfb_read4(sc, NGLE_REG_27) & ~0x00800000);
   1560 	}
   1561 }
   1562