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summitfb.c revision 1.5
      1 /*	$NetBSD: summitfb.c,v 1.5 2024/11/20 05:24:46 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/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: summitfb.c,v 1.5 2024/11/20 05:24:46 macallan Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/systm.h>
     33 #include <sys/kmem.h>
     34 #include <sys/device.h>
     35 #include <sys/mutex.h>
     36 
     37 #include <dev/pci/pcivar.h>
     38 #include <dev/pci/pcireg.h>
     39 #include <dev/pci/pcidevs.h>
     40 #include <dev/pci/pciio.h>
     41 
     42 #include <dev/wscons/wsdisplayvar.h>
     43 #include <dev/wscons/wsconsio.h>
     44 #include <dev/wsfont/wsfont.h>
     45 #include <dev/rasops/rasops.h>
     46 #include <dev/wscons/wsdisplay_vconsvar.h>
     47 #include <dev/pci/wsdisplay_pci.h>
     48 #include <dev/wscons/wsdisplay_glyphcachevar.h>
     49 
     50 #include <dev/ic/stireg.h>
     51 #include <dev/ic/summitreg.h>
     52 #include <dev/ic/stivar.h>
     53 
     54 #include "opt_summitfb.h"
     55 
     56 #ifdef SUMMITFB_DEBUG
     57 #define	DPRINTF(s) printf s
     58 #else
     59 #define	DPRINTF(s) __nothing
     60 #endif
     61 
     62 int	summitfb_match(device_t, cfdata_t, void *);
     63 void	summitfb_attach(device_t, device_t, void *);
     64 
     65 struct	summitfb_softc {
     66 	device_t		sc_dev;
     67 	pci_chipset_tag_t	sc_pc;
     68 	pcitag_t		sc_tag;
     69 
     70 	/* stuff we need in order to use the STI ROM */
     71 	struct sti_softc	sc_base;
     72 	struct sti_screen 	sc_scr;
     73 	bus_space_handle_t	sc_romh;
     74 
     75 	int sc_width, sc_height;
     76 	int sc_locked;
     77 	struct vcons_screen sc_console_screen;
     78 	struct wsscreen_descr sc_defaultscreen_descr;
     79 	const struct wsscreen_descr *sc_screens[1];
     80 	struct wsscreen_list sc_screenlist;
     81 	struct vcons_data vd;
     82 	int sc_mode;
     83 	void (*sc_putchar)(void *, int, int, u_int, long);
     84 	u_char sc_cmap_red[256];
     85 	u_char sc_cmap_green[256];
     86 	u_char sc_cmap_blue[256];
     87 	kmutex_t sc_hwlock;
     88 	uint32_t sc_hwmode;
     89 #define HW_FB	0
     90 #define HW_FILL	1
     91 #define HW_BLIT	2
     92 	/* cursor stuff */
     93 	int sc_cursor_x, sc_cursor_y;
     94 	int sc_hot_x, sc_hot_y, sc_enabled;
     95 	int sc_video_on;
     96 	glyphcache sc_gc;
     97 };
     98 
     99 CFATTACH_DECL_NEW(summitfb, sizeof(struct summitfb_softc),
    100     summitfb_match, summitfb_attach, NULL, NULL);
    101 
    102 int	summitfb_readbar(struct sti_softc *, struct pci_attach_args *, u_int,
    103 	    int);
    104 int	summitfb_check_rom(struct summitfb_softc *, struct pci_attach_args *);
    105 void	summitfb_enable_rom(struct sti_softc *);
    106 void	summitfb_disable_rom(struct sti_softc *);
    107 void	summitfb_enable_rom_internal(struct summitfb_softc *);
    108 void	summitfb_disable_rom_internal(struct summitfb_softc *);
    109 
    110 void 	summitfb_setup(struct summitfb_softc *);
    111 
    112 /* XXX these really need to go into their own header */
    113 int	sti_pci_is_console(struct pci_attach_args *, bus_addr_t *);
    114 int	sti_rom_setup(struct sti_rom *, bus_space_tag_t, bus_space_tag_t,
    115 	    bus_space_handle_t, bus_addr_t *, u_int);
    116 int	sti_screen_setup(struct sti_screen *, int);
    117 void	sti_describe_screen(struct sti_softc *, struct sti_screen *);
    118 
    119 #define PCI_ROM_SIZE(mr)						      \
    120 	(PCI_MAPREG_ROM_ADDR(mr) & -PCI_MAPREG_ROM_ADDR(mr))
    121 
    122 /* wsdisplay stuff */
    123 static int	summitfb_ioctl(void *, void *, u_long, void *, int,
    124 		    struct lwp *);
    125 static paddr_t	summitfb_mmap(void *, void *, off_t, int);
    126 static void	summitfb_init_screen(void *, struct vcons_screen *, int,
    127 		    long *);
    128 
    129 static int	summitfb_putcmap(struct summitfb_softc *,
    130 		    struct wsdisplay_cmap *);
    131 static int 	summitfb_getcmap(struct summitfb_softc *,
    132 		    struct wsdisplay_cmap *);
    133 static void	summitfb_restore_palette(struct summitfb_softc *);
    134 static int 	summitfb_putpalreg(struct summitfb_softc *, uint8_t, uint8_t,
    135 		    uint8_t, uint8_t);
    136 
    137 static inline void summitfb_setup_fb(struct summitfb_softc *);
    138 
    139 static void	summitfb_rectfill(struct summitfb_softc *, int, int, int, int,
    140 		    uint32_t);
    141 static void	summitfb_bitblt(void *, int, int, int, int, int,
    142 		    int, int);
    143 
    144 static void	summitfb_cursor(void *, int, int, int);
    145 static void	summitfb_putchar(void *, int, int, u_int, long);
    146 static void	summitfb_putchar_aa(void *, int, int, u_int, long);
    147 static void	summitfb_copycols(void *, int, int, int, int);
    148 static void	summitfb_erasecols(void *, int, int, int, long);
    149 static void	summitfb_copyrows(void *, int, int, int);
    150 static void	summitfb_eraserows(void *, int, int, long);
    151 
    152 static void	summitfb_move_cursor(struct summitfb_softc *, int, int);
    153 static int	summitfb_do_cursor(struct summitfb_softc *,
    154 		    struct wsdisplay_cursor *);
    155 
    156 static void	summitfb_set_video(struct summitfb_softc *, int);
    157 
    158 struct wsdisplay_accessops summitfb_accessops = {
    159 	.ioctl = summitfb_ioctl,
    160 	.mmap = summitfb_mmap,
    161 	.alloc_screen = NULL,
    162 	.free_screen = NULL,
    163 	.show_screen = NULL,
    164 	.load_font = NULL,
    165 	.pollc = NULL,
    166 	.scroll = NULL,
    167 };
    168 
    169 static inline void summitfb_wait_fifo(struct summitfb_softc *, uint32_t);
    170 
    171 int
    172 summitfb_match(device_t parent, cfdata_t cf, void *aux)
    173 {
    174 	struct pci_attach_args *paa = aux;
    175 
    176 	if (PCI_VENDOR(paa->pa_id) != PCI_VENDOR_HP)
    177 		return 0;
    178 
    179 	if (PCI_PRODUCT(paa->pa_id) == PCI_PRODUCT_HP_VISUALIZE_FX4)
    180 		return 10;	/* beat out sti at pci */
    181 
    182 	return 0;
    183 }
    184 
    185 static inline uint32_t
    186 summitfb_read4(struct summitfb_softc *sc, uint32_t offset)
    187 {
    188 	struct sti_rom *rom = sc->sc_base.sc_rom;
    189 	bus_space_tag_t memt = rom->memt;
    190 	bus_space_handle_t memh = rom->regh[2];
    191 
    192 	return bus_space_read_stream_4(memt, memh, offset - 0x400000);
    193 }
    194 
    195 static inline void
    196 summitfb_write4(struct summitfb_softc *sc, uint32_t offset, uint32_t val)
    197 {
    198 	struct sti_rom *rom = sc->sc_base.sc_rom;
    199 	bus_space_tag_t memt = rom->memt;
    200 	bus_space_handle_t memh = rom->regh[2];
    201 
    202 	bus_space_write_stream_4(memt, memh, offset - 0x400000, val);
    203 }
    204 
    205 static inline uint8_t
    206 summitfb_read1(struct summitfb_softc *sc, uint32_t offset)
    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 
    212 	return bus_space_read_1(memt, memh, offset);
    213 }
    214 
    215 static inline void
    216 summitfb_write1(struct summitfb_softc *sc, uint32_t offset, uint8_t val)
    217 {
    218 	struct sti_rom *rom = sc->sc_base.sc_rom;
    219 	bus_space_tag_t memt = rom->memt;
    220 	bus_space_handle_t memh = rom->regh[2];
    221 
    222 	bus_space_write_1(memt, memh, offset, val);
    223 }
    224 
    225 void
    226 summitfb_attach(device_t parent, device_t self, void *aux)
    227 {
    228 	struct summitfb_softc *sc = device_private(self);
    229 	struct pci_attach_args *paa = aux;
    230 	struct sti_rom *rom;
    231 	struct rasops_info *ri;
    232 	struct wsemuldisplaydev_attach_args aa;
    233 	unsigned long defattr = 0;
    234 	int ret, is_console = 0;
    235 
    236 	sc->sc_dev = self;
    237 
    238 	sc->sc_pc = paa->pa_pc;
    239 	sc->sc_tag = paa->pa_tag;
    240 	sc->sc_base.sc_dev = self;
    241 	sc->sc_base.sc_enable_rom = summitfb_enable_rom;
    242 	sc->sc_base.sc_disable_rom = summitfb_disable_rom;
    243 
    244 	/* we can *not* be interrupted when doing colour map accesses */
    245 	mutex_init(&sc->sc_hwlock, MUTEX_DEFAULT, IPL_HIGH);
    246 
    247 	aprint_normal("\n");
    248 
    249 	if (summitfb_check_rom(sc, paa) != 0)
    250 		return;
    251 
    252 	ret = sti_pci_is_console(paa, sc->sc_base. bases);
    253 	if (ret != 0) {
    254 		sc->sc_base.sc_flags |= STI_CONSOLE;
    255 		is_console = 1;
    256 	}
    257 	rom = kmem_zalloc(sizeof(*rom), KM_SLEEP);
    258 	rom->rom_softc = &sc->sc_base;
    259 	ret = sti_rom_setup(rom, paa->pa_iot, paa->pa_memt, sc->sc_romh,
    260 	    sc->sc_base.bases, STI_CODEBASE_MAIN);
    261 	if (ret != 0) {
    262 		kmem_free(rom, sizeof(*rom));
    263 		return;
    264 	}
    265 
    266 	sc->sc_base.sc_rom = rom;
    267 
    268 	sc->sc_scr.scr_rom = sc->sc_base.sc_rom;
    269 	ret = sti_screen_setup(&sc->sc_scr, STI_FBMODE);
    270 
    271 	sc->sc_width = sc->sc_scr.scr_cfg.scr_width;
    272 	sc->sc_height = sc->sc_scr.scr_cfg.scr_height;
    273 
    274 	aprint_normal_dev(sc->sc_dev, "%s at %dx%d\n", sc->sc_scr.name,
    275 	    sc->sc_width, sc->sc_height);
    276 	summitfb_setup(sc);
    277 
    278 #ifdef SUMMITFB_DEBUG
    279 	sc->sc_height -= 200;
    280 #endif
    281 
    282 	sc->sc_defaultscreen_descr = (struct wsscreen_descr){
    283 		.name = "default",
    284 		.ncols = 0, .nrows = 0,
    285 		.textops = NULL,
    286 		.fontwidth = 8, .fontheight = 16,
    287 		.capabilities = WSSCREEN_WSCOLORS | WSSCREEN_HILIT |
    288 		    WSSCREEN_UNDERLINE | WSSCREEN_RESIZE,
    289 		.modecookie = NULL,
    290 	};
    291 
    292 	sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
    293 	sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
    294 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
    295 	sc->sc_locked = 0;
    296 
    297 	vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
    298 	    &summitfb_accessops);
    299 	sc->vd.init_screen = summitfb_init_screen;
    300 	sc->vd.show_screen_cookie = &sc->sc_gc;
    301 	sc->vd.show_screen_cb = glyphcache_adapt;
    302 
    303 	ri = &sc->sc_console_screen.scr_ri;
    304 
    305 	sc->sc_gc.gc_bitblt = summitfb_bitblt;
    306 	sc->sc_gc.gc_blitcookie = sc;
    307 	sc->sc_gc.gc_rop = RopSrc;
    308 
    309 	vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, &defattr);
    310 	sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    311 
    312 	sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
    313 	sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
    314 	sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
    315 	sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
    316 
    317 	glyphcache_init(&sc->sc_gc, sc->sc_height + 5,
    318 	    sc->sc_scr.fbheight - sc->sc_height - 5,
    319 	    sc->sc_scr.fbwidth,
    320 	    ri->ri_font->fontwidth,
    321 	    ri->ri_font->fontheight,
    322 	    defattr);
    323 
    324 	summitfb_restore_palette(sc);
    325 	summitfb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height,
    326 	    ri->ri_devcmap[(defattr >> 16) & 0xff]);
    327 	summitfb_setup_fb(sc);
    328 
    329 	if (is_console) {
    330 		wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
    331 		    defattr);
    332 
    333 		vcons_replay_msgbuf(&sc->sc_console_screen);
    334 	}
    335 
    336 	/* no suspend/resume support yet */
    337 	pmf_device_register(sc->sc_dev, NULL, NULL);
    338 
    339 	aa.console = is_console;
    340 	aa.scrdata = &sc->sc_screenlist;
    341 	aa.accessops = &summitfb_accessops;
    342 	aa.accesscookie = &sc->vd;
    343 
    344 	config_found(sc->sc_dev, &aa, wsemuldisplaydevprint, CFARGS_NONE);
    345 }
    346 
    347 /*
    348  * Grovel the STI ROM image.
    349  */
    350 int
    351 summitfb_check_rom(struct summitfb_softc *spc, struct pci_attach_args *pa)
    352 {
    353 	struct sti_softc *sc = &spc->sc_base;
    354 	pcireg_t address, mask;
    355 	bus_space_handle_t romh;
    356 	bus_size_t romsize, subsize, stiromsize;
    357 	bus_addr_t selected, offs, suboffs;
    358 	uint32_t tmp;
    359 	int i;
    360 	int rc;
    361 
    362 	/* sort of inline sti_pci_enable_rom(sc) */
    363 	address = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    364 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM,
    365 	    ~PCI_MAPREG_ROM_ENABLE);
    366 	mask = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM);
    367 	address |= PCI_MAPREG_ROM_ENABLE;
    368 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM, address);
    369 	sc->sc_flags |= STI_ROM_ENABLED;
    370 
    371 	/*
    372 	 * Map the complete ROM for now.
    373 	 */
    374 	romsize = PCI_ROM_SIZE(mask);
    375 	DPRINTF(("%s: mapping rom @ %lx for %lx\n", __func__,
    376 	    (long)PCI_MAPREG_ROM_ADDR(address), (long)romsize));
    377 
    378 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address), romsize,
    379 	    0, &romh);
    380 	if (rc != 0) {
    381 		aprint_error_dev(sc->sc_dev, "can't map PCI ROM (%d)\n", rc);
    382 		goto fail2;
    383 	}
    384 
    385 	summitfb_disable_rom_internal(spc);
    386 	/*
    387 	 * Iterate over the ROM images, pick the best candidate.
    388 	 */
    389 
    390 	selected = (bus_addr_t)-1;
    391 	for (offs = 0; offs < romsize; offs += subsize) {
    392 		summitfb_enable_rom_internal(spc);
    393 		/*
    394 		 * Check for a valid ROM header.
    395 		 */
    396 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 0);
    397 		tmp = le32toh(tmp);
    398 		if (tmp != 0x55aa0000) {
    399 			summitfb_disable_rom_internal(spc);
    400 			if (offs == 0) {
    401 				aprint_error_dev(sc->sc_dev,
    402 				    "invalid PCI ROM header signature"
    403 				    " (%08x)\n", tmp);
    404 				rc = EINVAL;
    405 			}
    406 			break;
    407 		}
    408 
    409 		/*
    410 		 * Check ROM type.
    411 		 */
    412 		tmp = bus_space_read_4(pa->pa_memt, romh, offs + 4);
    413 		tmp = le32toh(tmp);
    414 		if (tmp != 0x00000001) {	/* 1 == STI ROM */
    415 			summitfb_disable_rom_internal(spc);
    416 			if (offs == 0) {
    417 				aprint_error_dev(sc->sc_dev,
    418 				    "invalid PCI ROM type (%08x)\n", tmp);
    419 				rc = EINVAL;
    420 			}
    421 			break;
    422 		}
    423 
    424 		subsize = (bus_addr_t)bus_space_read_2(pa->pa_memt, romh,
    425 		    offs + 0x0c);
    426 		subsize <<= 9;
    427 
    428 #ifdef SUMMITFB_DEBUG
    429 		summitfb_disable_rom_internal(spc);
    430 		DPRINTF(("ROM offset %08x size %08x type %08x",
    431 		    (u_int)offs, (u_int)subsize, tmp));
    432 		summitfb_enable_rom_internal(spc);
    433 #endif
    434 
    435 		/*
    436 		 * Check for a valid ROM data structure.
    437 		 * We do not need it except to know what architecture the ROM
    438 		 * code is for.
    439 		 */
    440 
    441 		suboffs = offs +(bus_addr_t)bus_space_read_2(pa->pa_memt, romh,
    442 		    offs + 0x18);
    443 		tmp = bus_space_read_4(pa->pa_memt, romh, suboffs + 0);
    444 		tmp = le32toh(tmp);
    445 		if (tmp != 0x50434952) {	/* PCIR */
    446 			summitfb_disable_rom_internal(spc);
    447 			if (offs == 0) {
    448 				aprint_error_dev(sc->sc_dev, "invalid PCI data"
    449 				    " signature (%08x)\n", tmp);
    450 				rc = EINVAL;
    451 			} else {
    452 				DPRINTF((" invalid PCI data signature %08x\n",
    453 				    tmp));
    454 				continue;
    455 			}
    456 		}
    457 
    458 		tmp = bus_space_read_1(pa->pa_memt, romh, suboffs + 0x14);
    459 		summitfb_disable_rom_internal(spc);
    460 		DPRINTF((" code %02x", tmp));
    461 
    462 		switch (tmp) {
    463 #ifdef __hppa__
    464 		case 0x10:
    465 			if (selected == (bus_addr_t)-1)
    466 				selected = offs;
    467 			break;
    468 #endif
    469 #ifdef __i386__
    470 		case 0x00:
    471 			if (selected == (bus_addr_t)-1)
    472 				selected = offs;
    473 			break;
    474 #endif
    475 		default:
    476 			DPRINTF((" (wrong architecture)"));
    477 			break;
    478 		}
    479 		DPRINTF(("%s\n", selected == offs ? " -> SELECTED" : ""));
    480 	}
    481 
    482 	if (selected == (bus_addr_t)-1) {
    483 		if (rc == 0) {
    484 			aprint_error_dev(sc->sc_dev, "found no ROM with "
    485 			    "correct microcode architecture\n");
    486 			rc = ENOEXEC;
    487 		}
    488 		goto fail;
    489 	}
    490 
    491 	/*
    492 	 * Read the STI region BAR assignments.
    493 	 */
    494 
    495 	summitfb_enable_rom_internal(spc);
    496 	offs = selected +
    497 	    (bus_addr_t)bus_space_read_2(pa->pa_memt, romh, selected + 0x0e);
    498 	for (i = 0; i < STI_REGION_MAX; i++) {
    499 		rc = summitfb_readbar(sc, pa, i,
    500 		    bus_space_read_1(pa->pa_memt, romh, offs + i));
    501 		if (rc != 0)
    502 			goto fail;
    503 	}
    504 
    505 	/*
    506 	 * Find out where the STI ROM itself lies, and its size.
    507 	 */
    508 
    509 	offs = selected +
    510 	    (bus_addr_t)bus_space_read_4(pa->pa_memt, romh, selected + 0x08);
    511 	stiromsize = (bus_addr_t)bus_space_read_4(pa->pa_memt, romh,
    512 	    offs + 0x18);
    513 	stiromsize = le32toh(stiromsize);
    514 	summitfb_disable_rom_internal(spc);
    515 
    516 	/*
    517 	 * Replace our mapping with a smaller mapping of only the area
    518 	 * we are interested in.
    519 	 */
    520 
    521 	DPRINTF(("remapping rom @ %lx for %lx\n",
    522 	    (long)(PCI_MAPREG_ROM_ADDR(address) + offs), (long)stiromsize));
    523 	bus_space_unmap(pa->pa_memt, romh, romsize);
    524 	rc = bus_space_map(pa->pa_memt, PCI_MAPREG_ROM_ADDR(address) + offs,
    525 	    stiromsize, 0, &spc->sc_romh);
    526 	if (rc != 0) {
    527 		aprint_error_dev(sc->sc_dev, "can't map STI ROM (%d)\n",
    528 		    rc);
    529 		goto fail2;
    530 	}
    531  	summitfb_disable_rom_internal(spc);
    532 	sc->sc_flags &= ~STI_ROM_ENABLED;
    533 
    534 	return 0;
    535 
    536 fail:
    537 	bus_space_unmap(pa->pa_memt, romh, romsize);
    538 fail2:
    539 	summitfb_disable_rom_internal(spc);
    540 
    541 	return rc;
    542 }
    543 
    544 /*
    545  * Decode a BAR register.
    546  */
    547 int
    548 summitfb_readbar(struct sti_softc *sc, struct pci_attach_args *pa,
    549     u_int region, int bar)
    550 {
    551 	bus_addr_t addr;
    552 	bus_size_t size;
    553 	uint32_t cf;
    554 	int rc;
    555 
    556 	if (bar == 0) {
    557 		sc->bases[region] = 0;
    558 		return 0;
    559 	}
    560 
    561 #ifdef DIAGNOSTIC
    562 	if (bar < PCI_MAPREG_START || bar > PCI_MAPREG_PPB_END) {
    563 		summitfb_disable_rom(sc);
    564 		printf("%s: unexpected bar %02x for region %d\n",
    565 		    device_xname(sc->sc_dev), bar, region);
    566 		summitfb_enable_rom(sc);
    567 	}
    568 #endif
    569 
    570 	cf = pci_conf_read(pa->pa_pc, pa->pa_tag, bar);
    571 
    572 	rc = pci_mapreg_info(pa->pa_pc, pa->pa_tag, bar, PCI_MAPREG_TYPE(cf),
    573 	    &addr, &size, NULL);
    574 
    575 	if (rc != 0) {
    576 		summitfb_disable_rom(sc);
    577 		aprint_error_dev(sc->sc_dev, "invalid bar %02x"
    578 		    " for region %d\n",
    579 		    bar, region);
    580 		summitfb_enable_rom(sc);
    581 		return rc;
    582 	}
    583 
    584 	sc->bases[region] = addr;
    585 	return 0;
    586 }
    587 
    588 /*
    589  * Enable PCI ROM.
    590  */
    591 void
    592 summitfb_enable_rom_internal(struct summitfb_softc *spc)
    593 {
    594 	pcireg_t address;
    595 
    596 	KASSERT(spc != NULL);
    597 
    598 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    599 	address |= PCI_MAPREG_ROM_ENABLE;
    600 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    601 }
    602 
    603 void
    604 summitfb_enable_rom(struct sti_softc *sc)
    605 {
    606 	struct summitfb_softc *spc = device_private(sc->sc_dev);
    607 
    608 	if (!ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    609 		summitfb_enable_rom_internal(spc);
    610 	}
    611 	SET(sc->sc_flags, STI_ROM_ENABLED);
    612 }
    613 
    614 /*
    615  * Disable PCI ROM.
    616  */
    617 void
    618 summitfb_disable_rom_internal(struct summitfb_softc *spc)
    619 {
    620 	pcireg_t address;
    621 
    622 	KASSERT(spc != NULL);
    623 
    624 	address = pci_conf_read(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM);
    625 	address &= ~PCI_MAPREG_ROM_ENABLE;
    626 	pci_conf_write(spc->sc_pc, spc->sc_tag, PCI_MAPREG_ROM, address);
    627 }
    628 
    629 void
    630 summitfb_disable_rom(struct sti_softc *sc)
    631 {
    632 	struct summitfb_softc *spc = device_private(sc->sc_dev);
    633 
    634 	if (ISSET(sc->sc_flags, STI_ROM_ENABLED)) {
    635 		summitfb_disable_rom_internal(spc);
    636 	}
    637 	CLR(sc->sc_flags, STI_ROM_ENABLED);
    638 }
    639 
    640 static inline void
    641 summitfb_wait(struct summitfb_softc *sc)
    642 {
    643 
    644 	while (summitfb_read4(sc, VISFX_STATUS) != 0)
    645 		continue;
    646 }
    647 
    648 static inline void
    649 summitfb_setup_fb(struct summitfb_softc *sc)
    650 {
    651 
    652 	sc->sc_hwmode = HW_FB;
    653 	summitfb_wait(sc);
    654 	summitfb_write4(sc, VISFX_VRAM_WRITE_MODE, VISFX_WRITE_MODE_PLAIN);
    655 }
    656 
    657 void
    658 summitfb_setup(struct summitfb_softc *sc)
    659 {
    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 	 * STI hands us the frame buffer in 32bit access mode,
    669 	 * one of these puts us into 8bit FB access mode
    670 	 */
    671 #if 1
    672 	summitfb_write4(sc, 0xb08044, 0x1b);
    673 	summitfb_write4(sc, 0xb08048, 0x1b);
    674 	summitfb_write4(sc, 0x920860, 0xe4);
    675 	summitfb_write4(sc, 0xa00818, 0);
    676 	summitfb_write4(sc, 0xa00404, 0);
    677 	summitfb_write4(sc, 0x921110, 0);
    678 	summitfb_write4(sc, 0x9211d8, 0);
    679 	summitfb_write4(sc, 0xa0086c, 0);
    680 	summitfb_write4(sc, 0x921114, 0);
    681 	summitfb_write4(sc, 0xac1050, 0);
    682 	summitfb_write4(sc, 0xa00858, 0xb0);
    683 #endif
    684 
    685 	summitfb_write4(sc, VISFX_PIXEL_MASK, 0xffffffff);
    686 	summitfb_write4(sc, VISFX_PLANE_MASK, 0xffffffff);
    687 
    688 	summitfb_setup_fb(sc);
    689 }
    690 
    691 static int
    692 summitfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
    693     struct lwp *l)
    694 {
    695 	struct vcons_data *vd = v;
    696 	struct summitfb_softc *sc = vd->cookie;
    697 	struct wsdisplay_fbinfo *wdf;
    698 	struct vcons_screen *ms = vd->active;
    699 
    700 	switch (cmd) {
    701 	case WSDISPLAYIO_GTYPE:
    702 		*(u_int *)data = WSDISPLAY_TYPE_STI;
    703 		return 0;
    704 
    705 	case GCID:
    706 		*(u_int *)data = sc->sc_scr.scr_rom->rom_dd.dd_grid[0];
    707 		return 0;
    708 
    709 	/* PCI config read/write passthrough. */
    710 	case PCI_IOC_CFGREAD:
    711 	case PCI_IOC_CFGWRITE:
    712 		return pci_devioctl(sc->sc_pc, sc->sc_tag,
    713 		    cmd, data, flag, l);
    714 
    715 	case WSDISPLAYIO_GET_BUSID:
    716 		return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
    717 		    sc->sc_tag, data);
    718 
    719 	case WSDISPLAYIO_GINFO:
    720 		if (ms == NULL)
    721 			return ENODEV;
    722 		wdf = data;
    723 		wdf->height = ms->scr_ri.ri_height;
    724 		wdf->width = ms->scr_ri.ri_width;
    725 		wdf->depth = ms->scr_ri.ri_depth;
    726 		wdf->cmsize = 256;
    727 		return 0;
    728 
    729 	case WSDISPLAYIO_GETCMAP:
    730 		return summitfb_getcmap(sc,
    731 		    (struct wsdisplay_cmap *)data);
    732 
    733 	case WSDISPLAYIO_PUTCMAP:
    734 		return summitfb_putcmap(sc,
    735 		    (struct wsdisplay_cmap *)data);
    736 
    737 	case WSDISPLAYIO_LINEBYTES:
    738 		*(u_int *)data = 2048;
    739 		return 0;
    740 
    741 	case WSDISPLAYIO_SMODE: {
    742 		int new_mode = *(int *)data;
    743 
    744 		if (new_mode != sc->sc_mode) {
    745 			sc->sc_mode = new_mode;
    746 			if(new_mode == WSDISPLAYIO_MODE_EMUL) {
    747 				summitfb_setup(sc);
    748 				summitfb_restore_palette(sc);
    749 				//glyphcache_wipe(&sc->sc_gc);
    750 				summitfb_rectfill(sc, 0, 0, sc->sc_width,
    751 				    sc->sc_height, ms->scr_ri.ri_devcmap[
    752 				    (ms->scr_defattr >> 16) & 0xff]);
    753 				summitfb_setup_fb(sc);
    754 				vcons_redraw_screen(ms);
    755 				summitfb_set_video(sc, 1);
    756 			}
    757 		}
    758 		return 0;
    759 	}
    760 
    761 	case WSDISPLAYIO_GET_FBINFO: {
    762 		struct wsdisplayio_fbinfo *fbi = data;
    763 		int ret;
    764 
    765 		ret = wsdisplayio_get_fbinfo(&ms->scr_ri, fbi);
    766 		fbi->fbi_fbsize = sc->sc_scr.fbheight * 2048;
    767 		return ret;
    768 	}
    769 
    770 	case WSDISPLAYIO_GCURPOS: {
    771 		struct wsdisplay_curpos *cp = data;
    772 
    773 		cp->x = sc->sc_cursor_x;
    774 		cp->y = sc->sc_cursor_y;
    775 		return 0;
    776 	}
    777 
    778 	case WSDISPLAYIO_SCURPOS: {
    779 		struct wsdisplay_curpos *cp = data;
    780 
    781 		summitfb_move_cursor(sc, cp->x, cp->y);
    782 		return 0;
    783 	}
    784 
    785 	case WSDISPLAYIO_GCURMAX: {
    786 		struct wsdisplay_curpos *cp = data;
    787 
    788 		cp->x = 64;
    789 		cp->y = 64;
    790 		return 0;
    791 	}
    792 
    793 	case WSDISPLAYIO_SCURSOR: {
    794 		struct wsdisplay_cursor *cursor = data;
    795 
    796 		return summitfb_do_cursor(sc, cursor);
    797 	}
    798 
    799 	case WSDISPLAYIO_SVIDEO:
    800 		summitfb_set_video(sc, *(int *)data);
    801 		return 0;
    802 	case WSDISPLAYIO_GVIDEO:
    803 		*(u_int *)data = sc->sc_video_on ?
    804 		    WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF;
    805 		return 0;
    806 	}
    807 	return EPASSTHROUGH;
    808 }
    809 
    810 static paddr_t
    811 summitfb_mmap(void *v, void *vs, off_t offset, int prot)
    812 {
    813 	struct vcons_data *vd = v;
    814 	struct summitfb_softc *sc = vd->cookie;
    815 	struct sti_rom *rom = sc->sc_base.sc_rom;
    816 	paddr_t pa = -1;
    817 
    818 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)
    819 		return -1;
    820 
    821 	if (offset >= 0 && offset < sc->sc_scr.fblen) {
    822 		/* framebuffer */
    823 		pa = bus_space_mmap(rom->memt, sc->sc_scr.fbaddr, offset,
    824 		    prot, BUS_SPACE_MAP_LINEAR);
    825 	} else if (offset >= 0x80000000 && offset < 0x80400000) {
    826 		/* blitter registers etc. */
    827 		pa = bus_space_mmap(rom->memt, rom->regh[0],
    828 		    offset - 0x80000000, prot, BUS_SPACE_MAP_LINEAR);
    829 	}
    830 
    831 	return pa;
    832 }
    833 
    834 static void
    835 summitfb_init_screen(void *cookie, struct vcons_screen *scr,
    836     int existing, long *defattr)
    837 {
    838 	struct summitfb_softc *sc = cookie;
    839 	struct rasops_info *ri = &scr->scr_ri;
    840 
    841 	ri->ri_depth = 8;
    842 	ri->ri_width = sc->sc_width;
    843 	ri->ri_height = sc->sc_height;
    844 	ri->ri_stride = 2048;
    845 	ri->ri_flg = RI_CENTER | RI_8BIT_IS_RGB /*|
    846 		     RI_ENABLE_ALPHA | RI_PREFER_ALPHA*/;
    847 
    848 	ri->ri_bits = (void *)sc->sc_scr.fbaddr;
    849 	rasops_init(ri, 0, 0);
    850 	ri->ri_caps = WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE |
    851 	    WSSCREEN_RESIZE;
    852 	scr->scr_flags |= VCONS_LOADFONT | VCONS_DONT_READ;
    853 
    854 	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
    855 	    sc->sc_width / ri->ri_font->fontwidth);
    856 
    857 	ri->ri_hw = scr;
    858 if (0) {
    859 	sc->sc_putchar = ri->ri_ops.putchar;
    860 	ri->ri_ops.copyrows = summitfb_copyrows;
    861 	ri->ri_ops.copycols = summitfb_copycols;
    862 	ri->ri_ops.eraserows = summitfb_eraserows;
    863 	ri->ri_ops.erasecols = summitfb_erasecols;
    864 	ri->ri_ops.cursor = summitfb_cursor;
    865 	if (FONT_IS_ALPHA(ri->ri_font)) {
    866 		ri->ri_ops.putchar = summitfb_putchar_aa;
    867 	} else
    868 		ri->ri_ops.putchar = summitfb_putchar;
    869 }
    870 }
    871 
    872 static int
    873 summitfb_putcmap(struct summitfb_softc *sc, struct wsdisplay_cmap *cm)
    874 {
    875 	u_char *r, *g, *b;
    876 	u_int index = cm->index;
    877 	u_int count = cm->count;
    878 	int i, error;
    879 	u_char rbuf[256], gbuf[256], bbuf[256];
    880 
    881 	if (cm->index >= 256 || cm->count > 256 ||
    882 	    (cm->index + cm->count) > 256)
    883 		return EINVAL;
    884 	error = copyin(cm->red, &rbuf[index], count);
    885 	if (error)
    886 		return error;
    887 	error = copyin(cm->green, &gbuf[index], count);
    888 	if (error)
    889 		return error;
    890 	error = copyin(cm->blue, &bbuf[index], count);
    891 	if (error)
    892 		return error;
    893 
    894 	memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
    895 	memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
    896 	memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
    897 
    898 	r = &sc->sc_cmap_red[index];
    899 	g = &sc->sc_cmap_green[index];
    900 	b = &sc->sc_cmap_blue[index];
    901 
    902 	for (i = 0; i < count; i++) {
    903 		summitfb_putpalreg(sc, index, *r, *g, *b);
    904 		index++;
    905 		r++, g++, b++;
    906 	}
    907 	return 0;
    908 }
    909 
    910 static int
    911 summitfb_getcmap(struct summitfb_softc *sc, struct wsdisplay_cmap *cm)
    912 {
    913 	u_int index = cm->index;
    914 	u_int count = cm->count;
    915 	int error;
    916 
    917 	if (index >= 255 || count > 256 || index + count > 256)
    918 		return EINVAL;
    919 
    920 	error = copyout(&sc->sc_cmap_red[index],   cm->red,   count);
    921 	if (error)
    922 		return error;
    923 	error = copyout(&sc->sc_cmap_green[index], cm->green, count);
    924 	if (error)
    925 		return error;
    926 	error = copyout(&sc->sc_cmap_blue[index],  cm->blue,  count);
    927 	if (error)
    928 		return error;
    929 
    930 	return 0;
    931 }
    932 
    933 static void
    934 summitfb_restore_palette(struct summitfb_softc *sc)
    935 {
    936 	uint8_t cmap[768];
    937 	int i, j;
    938 
    939 	j = 0;
    940 	rasops_get_cmap(&sc->sc_console_screen.scr_ri, cmap, sizeof(cmap));
    941 	for (i = 0; i < 256; i++) {
    942 		sc->sc_cmap_red[i] = cmap[j];
    943 		sc->sc_cmap_green[i] = cmap[j + 1];
    944 		sc->sc_cmap_blue[i] = cmap[j + 2];
    945 		summitfb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
    946 		j += 3;
    947 	}
    948 }
    949 
    950 static int
    951 summitfb_putpalreg(struct summitfb_softc *sc, uint8_t idx,
    952     uint8_t r, uint8_t g, uint8_t b)
    953 {
    954 
    955 	mutex_enter(&sc->sc_hwlock);
    956 	summitfb_write4(sc, VISFX_COLOR_INDEX, 0xc0005100 + idx);
    957 	summitfb_write4(sc, VISFX_COLOR_VALUE, (r << 16) | ( g << 8) | b);
    958 	summitfb_write4(sc, VISFX_COLOR_MASK, 0xff);
    959 	summitfb_write4(sc, 0x80004c, 0xc);
    960 	summitfb_write4(sc, 0x800000, 0);
    961 	mutex_exit(&sc->sc_hwlock);
    962 	return 0;
    963 }
    964 
    965 static inline void
    966 summitfb_wait_fifo(struct summitfb_softc *sc, uint32_t slots)
    967 {
    968 #if 0
    969 	uint32_t reg;
    970 
    971 	do {
    972 		reg = summitfb_read4(sc, NGLE_REG_34);
    973 	} while (reg < slots);
    974 #endif
    975 }
    976 
    977 static void
    978 summitfb_rectfill(struct summitfb_softc *sc, int x, int y, int wi, int he,
    979     uint32_t bg)
    980 {
    981 
    982 	summitfb_wait(sc);
    983 	summitfb_write4(sc, VISFX_VRAM_WRITE_MODE, VISFX_WRITE_MODE_FILL);
    984 	summitfb_write4(sc, VISFX_FG_COLOUR, bg);
    985 	summitfb_write4(sc, VISFX_BG_COLOUR, bg);
    986 	summitfb_write4(sc, VISFX_START, (x << 16) | y);
    987 	summitfb_write4(sc, VISFX_SIZE, (wi << 16) | he);
    988 }
    989 
    990 static void
    991 summitfb_bitblt(void *cookie, int xs, int ys, int xd, int yd, int wi,
    992     int he, int rop)
    993 {
    994 #if 0
    995 	struct summitfb_softc *sc = cookie;
    996 #endif
    997 }
    998 
    999 static void
   1000 summitfb_nuke_cursor(struct rasops_info *ri)
   1001 {
   1002 	struct vcons_screen *scr = ri->ri_hw;
   1003 	struct summitfb_softc *sc = scr->scr_cookie;
   1004 	int wi, he, x, y;
   1005 
   1006 	if (ri->ri_flg & RI_CURSOR) {
   1007 		wi = ri->ri_font->fontwidth;
   1008 		he = ri->ri_font->fontheight;
   1009 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   1010 		y = ri->ri_crow * he + ri->ri_yorigin;
   1011 		summitfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1012 		ri->ri_flg &= ~RI_CURSOR;
   1013 	}
   1014 }
   1015 
   1016 static void
   1017 summitfb_cursor(void *cookie, int on, int row, int col)
   1018 {
   1019 	struct rasops_info *ri = cookie;
   1020 	struct vcons_screen *scr = ri->ri_hw;
   1021 	struct summitfb_softc *sc = scr->scr_cookie;
   1022 	int x, y, wi, he;
   1023 
   1024 	wi = ri->ri_font->fontwidth;
   1025 	he = ri->ri_font->fontheight;
   1026 
   1027 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
   1028 		if (on) {
   1029 			if (ri->ri_flg & RI_CURSOR) {
   1030 				summitfb_nuke_cursor(ri);
   1031 			}
   1032 			x = col * wi + ri->ri_xorigin;
   1033 			y = row * he + ri->ri_yorigin;
   1034 			summitfb_bitblt(sc, x, y, x, y, wi, he, RopInv);
   1035 			ri->ri_flg |= RI_CURSOR;
   1036 		}
   1037 		ri->ri_crow = row;
   1038 		ri->ri_ccol = col;
   1039 	} else {
   1040 		ri->ri_crow = row;
   1041 		ri->ri_ccol = col;
   1042 		ri->ri_flg &= ~RI_CURSOR;
   1043 	}
   1044 
   1045 }
   1046 
   1047 static void
   1048 summitfb_putchar(void *cookie, int row, int col, u_int c, long attr)
   1049 {
   1050 #if 0
   1051 	struct rasops_info *ri = cookie;
   1052 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1053 	struct vcons_screen *scr = ri->ri_hw;
   1054 	struct summitfb_softc *sc = scr->scr_cookie;
   1055 	//void *data;
   1056 	int x, y, wi, he, rv = GC_NOPE;
   1057 	uint32_t bg, fg, mask;
   1058 
   1059 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1060 		return;
   1061 
   1062 	if (!CHAR_IN_FONT(c, font))
   1063 		return;
   1064 
   1065 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1066 		ri->ri_flg &= ~RI_CURSOR;
   1067 	}
   1068 
   1069 	wi = font->fontwidth;
   1070 	he = font->fontheight;
   1071 
   1072 	x = ri->ri_xorigin + col * wi;
   1073 	y = ri->ri_yorigin + row * he;
   1074 
   1075 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1076 
   1077 	/* if we're drawing a space we're done here */
   1078 	if (c == 0x20) {
   1079 		summitfb_rectfill(sc, x, y, wi, he, bg);
   1080 		return;
   1081 	}
   1082 
   1083 	fg = ri->ri_devcmap[(attr >> 24) & 0x0f];
   1084 
   1085 	rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
   1086 	if (rv == GC_OK)
   1087 		return;
   1088 
   1089 	/* clear the character cell */
   1090 	summitfb_rectfill(sc, x, y, wi, he, bg);
   1091 
   1092 	//data = WSFONT_GLYPH(c, font);
   1093 /* ... */
   1094 	if (rv == GC_ADD)
   1095 		glyphcache_add(&sc->sc_gc, c, x, y);
   1096 #endif
   1097 }
   1098 
   1099 static void
   1100 summitfb_putchar_aa(void *cookie, int row, int col, u_int c, long attr)
   1101 {
   1102 	struct rasops_info *ri = cookie;
   1103 	struct wsdisplay_font *font = PICK_FONT(ri, c);
   1104 	struct vcons_screen *scr = ri->ri_hw;
   1105 	struct summitfb_softc *sc = scr->scr_cookie;
   1106 	int x, y, wi, he, rv = GC_NOPE;
   1107 	uint32_t bg;
   1108 
   1109 	if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL)
   1110 		return;
   1111 
   1112 	if (!CHAR_IN_FONT(c, font))
   1113 		return;
   1114 
   1115 	if (row == ri->ri_crow && col == ri->ri_ccol) {
   1116 		ri->ri_flg &= ~RI_CURSOR;
   1117 	}
   1118 
   1119 	wi = font->fontwidth;
   1120 	he = font->fontheight;
   1121 
   1122 	x = ri->ri_xorigin + col * wi;
   1123 	y = ri->ri_yorigin + row * he;
   1124 
   1125 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   1126 
   1127 	if (c == 0x20) {
   1128 		summitfb_rectfill(sc, x, y, wi, he, bg);
   1129 		return;
   1130 	}
   1131 
   1132 	rv = glyphcache_try(&sc->sc_gc, c, x, y, attr);
   1133 	if (rv == GC_OK)
   1134 		return;
   1135 
   1136 	if (sc->sc_hwmode != HW_FB) summitfb_setup_fb(sc);
   1137 	sc->sc_putchar(cookie, row, col, c, attr);
   1138 
   1139 	if (rv == GC_ADD)
   1140 		glyphcache_add(&sc->sc_gc, c, x, y);
   1141 }
   1142 
   1143 static void
   1144 summitfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1145 {
   1146 	struct rasops_info *ri = cookie;
   1147 	struct vcons_screen *scr = ri->ri_hw;
   1148 	struct summitfb_softc *sc = scr->scr_cookie;
   1149 	int32_t xs, xd, y, width, height;
   1150 
   1151 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1152 		if (ri->ri_crow == row &&
   1153 		    ri->ri_ccol >= srccol && ri->ri_ccol < (srccol + ncols) &&
   1154 		    (ri->ri_flg & RI_CURSOR)) {
   1155 			summitfb_nuke_cursor(ri);
   1156 		}
   1157 
   1158 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   1159 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   1160 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1161 		width = ri->ri_font->fontwidth * ncols;
   1162 		height = ri->ri_font->fontheight;
   1163 		summitfb_bitblt(sc, xs, y, xd, y, width, height, RopSrc);
   1164 		if (ri->ri_crow == row &&
   1165 		    ri->ri_ccol >= dstcol && ri->ri_ccol < (dstcol + ncols))
   1166 			ri->ri_flg &= ~RI_CURSOR;
   1167 	}
   1168 }
   1169 
   1170 static void
   1171 summitfb_erasecols(void *cookie, int row, int startcol, int ncols,
   1172     long fillattr)
   1173 {
   1174 	struct rasops_info *ri = cookie;
   1175 	struct vcons_screen *scr = ri->ri_hw;
   1176 	struct summitfb_softc *sc = scr->scr_cookie;
   1177 	int32_t x, y, width, height, fg, bg, ul;
   1178 
   1179 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1180 		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   1181 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1182 		width = ri->ri_font->fontwidth * ncols;
   1183 		height = ri->ri_font->fontheight;
   1184 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   1185 
   1186 		summitfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
   1187 		if (ri->ri_crow == row &&
   1188 		    ri->ri_ccol >= startcol &&
   1189 		    ri->ri_ccol < (startcol + ncols))
   1190 			ri->ri_flg &= ~RI_CURSOR;
   1191 	}
   1192 }
   1193 
   1194 static void
   1195 summitfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   1196 {
   1197 	struct rasops_info *ri = cookie;
   1198 	struct vcons_screen *scr = ri->ri_hw;
   1199 	struct summitfb_softc *sc = scr->scr_cookie;
   1200 	int32_t x, ys, yd, width, height;
   1201 
   1202 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1203 		if (ri->ri_crow >= srcrow && ri->ri_crow < (srcrow + nrows) &&
   1204 		    (ri->ri_flg & RI_CURSOR)) {
   1205 			summitfb_nuke_cursor(ri);
   1206 		}
   1207 		x = ri->ri_xorigin;
   1208 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   1209 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   1210 		width = ri->ri_emuwidth;
   1211 		height = ri->ri_font->fontheight * nrows;
   1212 		summitfb_bitblt(sc, x, ys, x, yd, width, height, RopSrc);
   1213 		if (ri->ri_crow >= dstrow && ri->ri_crow < (dstrow + nrows))
   1214 			ri->ri_flg &= ~RI_CURSOR;
   1215 	}
   1216 }
   1217 
   1218 static void
   1219 summitfb_eraserows(void *cookie, int row, int nrows, long fillattr)
   1220 {
   1221 	struct rasops_info *ri = cookie;
   1222 	struct vcons_screen *scr = ri->ri_hw;
   1223 	struct summitfb_softc *sc = scr->scr_cookie;
   1224 	int32_t x, y, width, height, fg, bg, ul;
   1225 
   1226 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
   1227 		x = ri->ri_xorigin;
   1228 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   1229 		width = ri->ri_emuwidth;
   1230 		height = ri->ri_font->fontheight * nrows;
   1231 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   1232 
   1233 		summitfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
   1234 
   1235 		if (ri->ri_crow >= row && ri->ri_crow < (row + nrows))
   1236 			ri->ri_flg &= ~RI_CURSOR;
   1237 	}
   1238 }
   1239 
   1240 static void
   1241 summitfb_move_cursor(struct summitfb_softc *sc, int x, int y)
   1242 {
   1243 	uint32_t pos;
   1244 
   1245 	sc->sc_cursor_x = x;
   1246 	x -= sc->sc_hot_x;
   1247 	sc->sc_cursor_y = y;
   1248 	y -= sc->sc_hot_y;
   1249 
   1250 	if (x < 0) x = 0x1000 - x;
   1251 	if (y < 0) y = 0x1000 - y;
   1252 	pos = (x << 16) | y;
   1253 	if (sc->sc_enabled) pos |= 0x80000000;
   1254 	summitfb_write4(sc, VISFX_CURSOR_POS, pos);
   1255 }
   1256 
   1257 static int
   1258 summitfb_do_cursor(struct summitfb_softc *sc, struct wsdisplay_cursor *cur)
   1259 {
   1260 
   1261 	if (cur->which & WSDISPLAY_CURSOR_DOCUR) {
   1262 		sc->sc_enabled = cur->enable;
   1263 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1264 	}
   1265 	if (cur->which & WSDISPLAY_CURSOR_DOHOT) {
   1266 		sc->sc_hot_x = cur->hot.x;
   1267 		sc->sc_hot_y = cur->hot.y;
   1268 		cur->which |= WSDISPLAY_CURSOR_DOPOS;
   1269 	}
   1270 	if (cur->which & WSDISPLAY_CURSOR_DOPOS) {
   1271 		summitfb_move_cursor(sc, cur->pos.x, cur->pos.y);
   1272 	}
   1273 	if (cur->which & WSDISPLAY_CURSOR_DOCMAP) {
   1274 		uint32_t rgb;
   1275 		uint8_t r[2], g[2], b[2];
   1276 
   1277 		copyin(cur->cmap.blue, b, 2);
   1278 		copyin(cur->cmap.green, g, 2);
   1279 		copyin(cur->cmap.red, r, 2);
   1280 		mutex_enter(&sc->sc_hwlock);
   1281 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0);
   1282 		rgb = r[0] << 16 | g[0] << 8 | b[0];
   1283 		summitfb_write4(sc, VISFX_CURSOR_COLOR, rgb);
   1284 		rgb = r[1] << 16 | g[1] << 8 | b[1];
   1285 		summitfb_write4(sc, VISFX_CURSOR_COLOR + 4, rgb);
   1286 		mutex_exit(&sc->sc_hwlock);
   1287 	}
   1288 	if (cur->which & WSDISPLAY_CURSOR_DOSHAPE) {
   1289 
   1290 		uint32_t buffer[128], latch, tmp;
   1291 		int i;
   1292 
   1293 		copyin(cur->mask, buffer, 512);
   1294 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0);
   1295 		for (i = 0; i < 128; i += 2) {
   1296 			latch = 0;
   1297 			tmp = buffer[i] & 0x80808080;
   1298 			latch |= tmp >> 7;
   1299 			tmp = buffer[i] & 0x40404040;
   1300 			latch |= tmp >> 5;
   1301 			tmp = buffer[i] & 0x20202020;
   1302 			latch |= tmp >> 3;
   1303 			tmp = buffer[i] & 0x10101010;
   1304 			latch |= tmp >> 1;
   1305 			tmp = buffer[i] & 0x08080808;
   1306 			latch |= tmp << 1;
   1307 			tmp = buffer[i] & 0x04040404;
   1308 			latch |= tmp << 3;
   1309 			tmp = buffer[i] & 0x02020202;
   1310 			latch |= tmp << 5;
   1311 			tmp = buffer[i] & 0x01010101;
   1312 			latch |= tmp << 7;
   1313 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1314 			latch = 0;
   1315 			tmp = buffer[i + 1] & 0x80808080;
   1316 			latch |= tmp >> 7;
   1317 			tmp = buffer[i + 1] & 0x40404040;
   1318 			latch |= tmp >> 5;
   1319 			tmp = buffer[i + 1] & 0x20202020;
   1320 			latch |= tmp >> 3;
   1321 			tmp = buffer[i + 1] & 0x10101010;
   1322 			latch |= tmp >> 1;
   1323 			tmp = buffer[i + 1] & 0x08080808;
   1324 			latch |= tmp << 1;
   1325 			tmp = buffer[i + 1] & 0x04040404;
   1326 			latch |= tmp << 3;
   1327 			tmp = buffer[i + 1] & 0x02020202;
   1328 			latch |= tmp << 5;
   1329 			tmp = buffer[i + 1] & 0x01010101;
   1330 			latch |= tmp << 7;
   1331 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1332 		}
   1333 
   1334 		summitfb_write4(sc, VISFX_CURSOR_INDEX, 0x80);
   1335 		copyin(cur->image, buffer, 512);
   1336 		for (i = 0; i < 128; i += 2) {
   1337 			latch = 0;
   1338 			tmp = buffer[i] & 0x80808080;
   1339 			latch |= tmp >> 7;
   1340 			tmp = buffer[i] & 0x40404040;
   1341 			latch |= tmp >> 5;
   1342 			tmp = buffer[i] & 0x20202020;
   1343 			latch |= tmp >> 3;
   1344 			tmp = buffer[i] & 0x10101010;
   1345 			latch |= tmp >> 1;
   1346 			tmp = buffer[i] & 0x08080808;
   1347 			latch |= tmp << 1;
   1348 			tmp = buffer[i] & 0x04040404;
   1349 			latch |= tmp << 3;
   1350 			tmp = buffer[i] & 0x02020202;
   1351 			latch |= tmp << 5;
   1352 			tmp = buffer[i] & 0x01010101;
   1353 			latch |= tmp << 7;
   1354 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1355 			latch = 0;
   1356 			tmp = buffer[i + 1] & 0x80808080;
   1357 			latch |= tmp >> 7;
   1358 			tmp = buffer[i + 1] & 0x40404040;
   1359 			latch |= tmp >> 5;
   1360 			tmp = buffer[i + 1] & 0x20202020;
   1361 			latch |= tmp >> 3;
   1362 			tmp = buffer[i + 1] & 0x10101010;
   1363 			latch |= tmp >> 1;
   1364 			tmp = buffer[i + 1] & 0x08080808;
   1365 			latch |= tmp << 1;
   1366 			tmp = buffer[i + 1] & 0x04040404;
   1367 			latch |= tmp << 3;
   1368 			tmp = buffer[i + 1] & 0x02020202;
   1369 			latch |= tmp << 5;
   1370 			tmp = buffer[i + 1] & 0x01010101;
   1371 			latch |= tmp << 7;
   1372 			summitfb_write4(sc, VISFX_CURSOR_DATA, latch);
   1373 		}
   1374 		summitfb_setup_fb(sc);
   1375 	}
   1376 
   1377 	return 0;
   1378 }
   1379 
   1380 static void
   1381 summitfb_set_video(struct summitfb_softc *sc, int on)
   1382 {
   1383 
   1384 	if (sc->sc_video_on == on)
   1385 		return;
   1386 
   1387 	sc->sc_video_on = on;
   1388 
   1389 	summitfb_wait(sc);
   1390 	if (on) {
   1391 	} else {
   1392 	}
   1393 }
   1394