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ite8181.c revision 1.7
      1 /*	$NetBSD: ite8181.c,v 1.7 2001/02/22 18:38:00 uch Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 SATO Kazumi
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  */
     29 
     30 #include <sys/param.h>
     31 #include <sys/kernel.h>
     32 #include <sys/device.h>
     33 #include <sys/systm.h>
     34 #include <sys/boot_flag.h>
     35 #include <sys/buf.h>
     36 
     37 #include <uvm/uvm_extern.h>
     38 
     39 #include <dev/wscons/wsconsio.h>
     40 
     41 #include <machine/bootinfo.h>
     42 #include <machine/bus.h>
     43 #include <machine/autoconf.h>
     44 #include <machine/config_hook.h>
     45 #include <machine/platid.h>
     46 #include <machine/platid_mask.h>
     47 
     48 #include <hpcmips/dev/ite8181reg.h>
     49 #include <hpcmips/dev/ite8181var.h>
     50 #include "bivideo.h"
     51 #if NBIVIDEO > 0
     52 #include <dev/hpc/bivideovar.h>
     53 #endif
     54 #include <dev/hpc/hpccmapvar.h>
     55 
     56 #define ITE8181DEBUG
     57 #ifdef ITE8181DEBUG
     58 #ifndef ITE8181DEBUG_CONF
     59 #define ITE8181DEBUG_CONF 0
     60 #endif
     61 int	ite8181_debug = ITE8181DEBUG_CONF;
     62 #define	DPRINTF(arg)     if (ite8181_debug) printf arg
     63 #define	DPRINTFN(n, arg) if (ite8181_debug > (n)) printf arg
     64 #define	VPRINTF(arg)     if (bootverbose || ite8181_debug) printf arg
     65 #define	VPRINTFN(n, arg) if (bootverbose || ite8181_debug > (n)) printf arg
     66 #else
     67 #define	DPRINTF(arg)
     68 #define DPRINTFN(n, arg)
     69 #define	VPRINTF(arg)     if (bootverbose) printf arg
     70 #define	VPRINTFN(n, arg) if (bootverbose) printf arg
     71 #endif
     72 
     73 #ifndef ITE8181_LCD_CONTROL_ENABLE
     74 int ite8181_lcd_control_disable = 1;
     75 #else /* ITE8181_LCD_CONTROL_ENABLE */
     76 int ite8181_lcd_control_disable = 0;
     77 #endif /* ITE8181_LCD_CONTROL_ENABLE */
     78 
     79 #define ITE8181_WINCE_CMAP
     80 
     81 /*
     82  * XXX:
     83  * IBM WorkPad z50 power unit has too weak power.
     84  * So we must wait too many times to access some device
     85  * after LCD panel and BackLight on.
     86  * Currently delay is not enough ??? FIXME
     87  */
     88 #ifndef ITE8181_LCD_ON_SELF_DELAY
     89 #define ITE8181_LCD_ON_SELF_DELAY 1000
     90 #endif /* ITE8181_LCD_ON__SELF_DELAY */
     91 #ifndef ITE8181_LCD_ON_DELAY
     92 #define ITE8181_LCD_ON_DELAY 2000
     93 #endif /* ITE8181_LCD_ON_DELAY */
     94 int ite8181_lcd_on_self_delay = ITE8181_LCD_ON_SELF_DELAY; /* msec */
     95 int ite8181_lcd_on_delay = ITE8181_LCD_ON_DELAY; /* msec */
     96 
     97 #define MSEC	1000
     98 /*
     99  * function prototypes
    100  */
    101 static void	ite8181_config_write_4 __P((bus_space_tag_t, bus_space_handle_t, int, int));
    102 static int	ite8181_config_read_4 __P((bus_space_tag_t, bus_space_handle_t, int));
    103 
    104 static void	ite8181_gui_write_4 __P((struct ite8181_softc *, int, int));
    105 static int	ite8181_gui_read_4 __P((struct ite8181_softc *, int));
    106 
    107 static void	ite8181_gui_write_1 __P((struct ite8181_softc *, int, int));
    108 static int	ite8181_gui_read_1 __P((struct ite8181_softc *, int));
    109 
    110 static void	ite8181_graphics_write_1 __P((struct ite8181_softc *, int, int));
    111 static int	ite8181_graphics_read_1 __P((struct ite8181_softc *, int));
    112 
    113 static void	ite8181_ema_write_1 __P((struct ite8181_softc *, int, int));
    114 static int	ite8181_ema_read_1 __P((struct ite8181_softc *, int));
    115 
    116 static void	ite8181_power __P((int, void *));
    117 static int	ite8181_hardpower __P((void *, int, long, void *));
    118 static int	ite8181_fbinit __P((struct hpcfb_fbconf *));
    119 static int	ite8181_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
    120 static paddr_t	ite8181_mmap __P((void *, off_t offset, int));
    121 static void	ite8181_erase_cursor __P((struct ite8181_softc *));
    122 static int	ite8181_lcd_power __P((struct ite8181_softc *, int));
    123 /*
    124  * static variables
    125  */
    126 struct hpcfb_accessops ite8181_ha = {
    127 	ite8181_ioctl, ite8181_mmap
    128 };
    129 
    130 inline int
    131 ite8181_config_read_4(iot, ioh, byteoffset)
    132 	bus_space_tag_t iot;
    133 	bus_space_handle_t ioh;
    134 	int byteoffset;
    135 {
    136 	return bus_space_read_4(iot, ioh, ITE8181_CONF_OFFSET + byteoffset);
    137 }
    138 
    139 inline void
    140 ite8181_config_write_4(iot, ioh, byteoffset, data)
    141 	bus_space_tag_t iot;
    142 	bus_space_handle_t ioh;
    143 	int byteoffset;
    144 	int data;
    145 {
    146 	bus_space_write_4(iot, ioh, ITE8181_CONF_OFFSET + byteoffset, data);
    147 }
    148 
    149 inline int
    150 ite8181_gui_read_4(sc, byteoffset)
    151 	struct ite8181_softc *sc;
    152 	int byteoffset;
    153 {
    154 	return bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    155 			sc->sc_gba + byteoffset);
    156 }
    157 
    158 inline void
    159 ite8181_gui_write_4(sc, byteoffset, data)
    160 	struct ite8181_softc *sc;
    161 	int byteoffset;
    162 	int data;
    163 {
    164 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, sc->sc_gba + byteoffset, data);
    165 }
    166 
    167 inline int
    168 ite8181_gui_read_1(sc, byteoffset)
    169 	struct ite8181_softc *sc;
    170 	int byteoffset;
    171 {
    172 	return bus_space_read_1(sc->sc_iot, sc->sc_ioh,
    173 			sc->sc_gba + byteoffset);
    174 }
    175 
    176 inline void
    177 ite8181_gui_write_1(sc, byteoffset, data)
    178 	struct ite8181_softc *sc;
    179 	int byteoffset;
    180 	int data;
    181 {
    182 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, sc->sc_gba + byteoffset, data);
    183 }
    184 
    185 inline int
    186 ite8181_graphics_read_1(sc, byteoffset)
    187 	struct ite8181_softc *sc;
    188 	int byteoffset;
    189 {
    190 	return bus_space_read_1(sc->sc_iot, sc->sc_ioh,
    191 			sc->sc_sba + byteoffset);
    192 }
    193 
    194 inline void
    195 ite8181_graphics_write_1(sc, byteoffset, data)
    196 	struct ite8181_softc *sc;
    197 	int byteoffset;
    198 	int data;
    199 {
    200 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, sc->sc_sba + byteoffset, data);
    201 }
    202 
    203 inline int
    204 ite8181_ema_read_1(sc, byteoffset)
    205 	struct ite8181_softc *sc;
    206 	int byteoffset;
    207 {
    208 	ite8181_graphics_write_1(sc, ITE8181_EMA_EXAX, byteoffset);
    209 	return ite8181_graphics_read_1(sc, ITE8181_EMA_EXADATA);
    210 }
    211 
    212 inline void
    213 ite8181_ema_write_1(sc, byteoffset, data)
    214 	struct ite8181_softc *sc;
    215 	int byteoffset;
    216 	int data;
    217 {
    218 	ite8181_graphics_write_1(sc, ITE8181_EMA_EXAX, byteoffset);
    219 	ite8181_graphics_write_1(sc, ITE8181_EMA_EXADATA, data);
    220 }
    221 
    222 int
    223 ite8181_probe(iot, ioh)
    224 	bus_space_tag_t iot;
    225 	bus_space_handle_t ioh;
    226 {
    227 	unsigned long regval;
    228 
    229 #if NBIVIDEO > 0
    230 	if (bivideo_dont_attach)	/* some video driver already attached */
    231 		return (0);
    232 #endif /* NBIVIDEO > 0 */
    233 
    234 	regval = ite8181_config_read_4(iot, ioh, ITE8181_ID);
    235 	VPRINTF(("ite8181_probe: vendor id=%04lx product id=%04lx\n",
    236 		 regval & 0xffff, (regval >> 16) & 0xffff));
    237 	if (regval != ((ITE8181_PRODUCT_ID << 16) | ITE8181_VENDER_ID))
    238 		return (0);
    239 
    240 	return (1);
    241 }
    242 
    243 void
    244 ite8181_attach(sc)
    245 	struct ite8181_softc *sc;
    246 {
    247 	unsigned long regval;
    248 	struct hpcfb_attach_args ha;
    249 	int console = (bootinfo->bi_cnuse & BI_CNUSE_SERIAL) ? 0 : 1;
    250 
    251 	printf(": ");
    252 	if (ite8181_fbinit(&sc->sc_fbconf) != 0) {
    253 		/* just return so that hpcfb will not be attached */
    254 		return;
    255 	}
    256 
    257 	regval = ite8181_config_read_4(sc->sc_iot, sc->sc_ioh, ITE8181_CLASS);
    258 	printf("ITE8181 Rev.%02lx", regval & ITE8181_REV_MASK);
    259 	if (console) {
    260 		printf(", console");
    261 	}
    262 	printf("\n");
    263 	printf("%s: framebuffer address: 0x%08lx\n",
    264 		sc->sc_dev.dv_xname, (u_long)bootinfo->fb_addr);
    265 
    266 	/* set base offsets */
    267 	sc->sc_mba = ite8181_config_read_4(sc->sc_iot, sc->sc_ioh, ITE8181_MBA);
    268 	DPRINTFN(1, ("ite8181: Memory base offset %08x\n", sc->sc_mba));
    269 	sc->sc_gba = ite8181_config_read_4(sc->sc_iot, sc->sc_ioh, ITE8181_GBA);
    270 	DPRINTFN(1, ("ite8181: GUI base offset %08x\n", sc->sc_gba));
    271 	sc->sc_sba = ite8181_config_read_4(sc->sc_iot, sc->sc_ioh, ITE8181_SBA);
    272 	DPRINTFN(1, ("ite8181: Graphics base offset %08x\n", sc->sc_sba));
    273 
    274 	/* assume lcd is on */
    275 	sc->sc_lcd = 1;
    276 
    277 	/* Add a power hook to power saving */
    278 	sc->sc_powerstate = ITE8181_POWERSTATE_D0;
    279 	sc->sc_powerhook = powerhook_establish(ite8181_power, sc);
    280 	if (sc->sc_powerhook == NULL)
    281 		printf("%s: WARNING: unable to establish power hook\n",
    282 			sc->sc_dev.dv_xname);
    283 
    284 	/* Add a hard power hook to power saving */
    285 	sc->sc_hardpowerhook = config_hook(CONFIG_HOOK_PMEVENT,
    286 					   CONFIG_HOOK_PMEVENT_HARDPOWER,
    287 					   CONFIG_HOOK_SHARE,
    288 					   ite8181_hardpower, sc);
    289 	if (sc->sc_hardpowerhook == NULL)
    290 		printf("%s: WARNING: unable to establish hard power hook\n",
    291 			sc->sc_dev.dv_xname);
    292 
    293 	ite8181_erase_cursor(sc);
    294 
    295 	if (console && hpcfb_cnattach(&sc->sc_fbconf) != 0) {
    296 		panic("ite8181_attach: can't init fb console");
    297 	}
    298 
    299 	ha.ha_console = console;
    300 	ha.ha_accessops = &ite8181_ha;
    301 	ha.ha_accessctx = sc;
    302 	ha.ha_curfbconf = 0;
    303 	ha.ha_nfbconf = 1;
    304 	ha.ha_fbconflist = &sc->sc_fbconf;
    305 	ha.ha_curdspconf = 0;
    306 	ha.ha_ndspconf = 1;
    307 	ha.ha_dspconflist = &sc->sc_dspconf;
    308 
    309 	config_found(&sc->sc_dev, &ha, hpcfbprint);
    310 
    311 #if NBIVIDEO > 0
    312 	/*
    313 	 * bivideo is no longer need
    314 	 */
    315 	bivideo_dont_attach = 1;
    316 #endif /* NBIVIDEO > 0 */
    317 }
    318 
    319 int ite8181_lcd_power(sc, on)
    320 	struct ite8181_softc *sc;
    321 	int on;
    322 {
    323 	int lcd_p;
    324 	int lcd_s;
    325 	int lcd_seq;
    326 	int loop = 10;
    327 
    328 	if (ite8181_lcd_control_disable) {
    329 		VPRINTF(("ite8171_lcd_control_disable!: %s\n", on?"on":"off"));
    330 		return 0;
    331 	}
    332 
    333 	if (sc->sc_lcd != on) {
    334 		ite8181_ema_write_1(sc, ITE8181_EMA_ENABLEEMA,
    335 			ITE8181_EMA_ENABLEPASS);
    336 		lcd_p = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWER);
    337 		lcd_s = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSTAT);
    338 		lcd_seq = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSEQ);
    339 		DPRINTFN(1,("ite8181_lcd_power(%d)< p=%x, s=%x, seq=%x\n",
    340 			on,
    341 			lcd_p, lcd_s, lcd_seq));
    342 		if (on) {
    343 			sc->sc_lcd = 1;
    344 			lcd_seq |= (ITE8181_PUP0|ITE8181_PUP1|ITE8181_PUP2);
    345 			ite8181_ema_write_1(sc, ITE8181_EMA_LCDPOWERSEQ, lcd_seq);
    346 			lcd_p &= ~ITE8181_LCDSTANDBY;
    347 			ite8181_ema_write_1(sc, ITE8181_EMA_LCDPOWER, lcd_p);
    348 			/*
    349 			 * XXX:
    350 			 * IBM WorkPad z50 power unit has too weak power.
    351 			 * So we must wait too many times to access self device
    352 			 * after LCD panel and BackLight on.
    353 			 * Currently delay is not enough ??? FIXME
    354 			 */
    355 			delay(ite8181_lcd_on_self_delay*MSEC);
    356 			while (loop--) {
    357 				lcd_p = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWER);
    358 				lcd_s = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSTAT);
    359 				lcd_seq = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSEQ);
    360 				DPRINTFN(1,("ite8181_lcd_power(%d)%d| p=%x, s=%x, seq=%x\n",
    361 					on, loop,
    362 					lcd_p, lcd_s, lcd_seq));
    363 				/* XXX the states which are not described in manual.*/
    364 				if (!(lcd_s&ITE8181_LCDPSTANDBY) &&
    365 					!(lcd_s&ITE8181_LCDPUP) &&
    366 					(lcd_s&ITE8181_LCDPON))
    367 					break;
    368 				delay(100);
    369 			}
    370 			lcd_s |= ITE8181_PPTOBEON;
    371 			ite8181_ema_write_1(sc, ITE8181_EMA_LCDPOWERSTAT, lcd_s);
    372 		} else {
    373 			sc->sc_lcd = 0;
    374 			lcd_p |= ITE8181_LCDSTANDBY;
    375 			ite8181_ema_write_1(sc, ITE8181_EMA_LCDPOWER, lcd_p);
    376 			while (loop--) {
    377 				lcd_p = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWER);
    378 				lcd_s = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSTAT);
    379 				lcd_seq = ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSEQ);
    380 				DPRINTFN(1,("ite8181_lcd_power(%d)%d| p=%x, s=%x, seq=%x\n",
    381 					on, loop,
    382 					lcd_p, lcd_s, lcd_seq));
    383 				/* XXX the states which are not described in manual.*/
    384 				if ((lcd_s&ITE8181_LCDPSTANDBY) &&
    385 					!(lcd_s&ITE8181_LCDPDOWN) &&
    386 					!(lcd_s&ITE8181_LCDPON))
    387 					break;
    388 				delay(100);
    389 			}
    390 			lcd_s &= ~ITE8181_PPTOBEON;
    391 			ite8181_ema_write_1(sc, ITE8181_EMA_LCDPOWERSTAT, lcd_s);
    392 		}
    393 		DPRINTFN(1,("ite8181_lcd_power(%d)> p=%x, s=%x, seq=%x\n",
    394 			on,
    395 			ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWER),
    396 			ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSTAT),
    397 			ite8181_ema_read_1(sc, ITE8181_EMA_LCDPOWERSEQ)));
    398 		ite8181_ema_write_1(sc, ITE8181_EMA_ENABLEEMA,
    399 					ITE8181_EMA_DISABLEPASS);
    400 	}
    401 	return 0;
    402 }
    403 
    404 static void
    405 ite8181_erase_cursor(sc)
    406 	struct ite8181_softc *sc;
    407 {
    408 	ite8181_gui_write_1(sc, ITE8181_GUI_C1C, 0); /* Cursor 1 Control Reg. */
    409 	/* other ? */
    410 }
    411 
    412 static void
    413 ite8181_power(why, arg)
    414 	int why;
    415 	void *arg;
    416 {
    417 }
    418 
    419 static int
    420 ite8181_hardpower(ctx, type, id, msg)
    421 	void *ctx;
    422 	int type;
    423 	long id;
    424 	void *msg;
    425 {
    426 	struct ite8181_softc *sc = ctx;
    427 	int why = (int)msg;
    428 
    429 	switch (why) {
    430 	case PWR_STANDBY:
    431 		sc->sc_powerstate = ITE8181_POWERSTATE_D3;
    432 		/* ite8181_lcd_power(sc, 0); */
    433 		delay(MSEC);
    434 		break;
    435 	case PWR_SUSPEND:
    436 		sc->sc_powerstate = ITE8181_POWERSTATE_D2;
    437 		ite8181_lcd_power(sc, 0);
    438 		delay(MSEC);
    439 		break;
    440 	case PWR_RESUME:
    441 		delay(MSEC);
    442 		sc->sc_powerstate = ITE8181_POWERSTATE_D0;
    443 		ite8181_lcd_power(sc, 1);
    444 		/*
    445 		 * XXX:
    446 		 * IBM WorkPad z50 power unit has too weak power.
    447 		 * So we must wait too many times to access other devices
    448 		 * after LCD panel and BackLight on.
    449 		 */
    450 		delay(ite8181_lcd_on_delay*MSEC);
    451 		break;
    452 	}
    453 
    454 	/*
    455 	 * you should wait until the
    456 	 * power state transit sequence will end.
    457 	 */
    458 
    459 	return (0);
    460 }
    461 
    462 
    463 static int
    464 ite8181_fbinit(fb)
    465 	struct hpcfb_fbconf *fb;
    466 {
    467 
    468 	/*
    469 	 * get fb settings from bootinfo
    470 	 */
    471 	if (bootinfo == NULL ||
    472 	    bootinfo->fb_addr == 0 ||
    473 	    bootinfo->fb_line_bytes == 0 ||
    474 	    bootinfo->fb_width == 0 ||
    475 	    bootinfo->fb_height == 0) {
    476 		printf("no frame buffer infomation.\n");
    477 		return (-1);
    478 	}
    479 
    480 	/* zero fill */
    481 	bzero(fb, sizeof(*fb));
    482 
    483 	fb->hf_conf_index	= 0;	/* configuration index		*/
    484 	fb->hf_nconfs		= 1;   	/* how many configurations	*/
    485 	strcpy(fb->hf_name, "built-in video");
    486 					/* frame buffer name		*/
    487 	strcpy(fb->hf_conf_name, "default");
    488 					/* configuration name		*/
    489 	fb->hf_height		= bootinfo->fb_height;
    490 	fb->hf_width		= bootinfo->fb_width;
    491 	fb->hf_baseaddr		= (u_long)bootinfo->fb_addr;
    492 	fb->hf_offset		= (u_long)bootinfo->fb_addr -
    493 				     mips_ptob(mips_btop(bootinfo->fb_addr));
    494 					/* frame buffer start offset   	*/
    495 	fb->hf_bytes_per_line	= bootinfo->fb_line_bytes;
    496 	fb->hf_nplanes		= 1;
    497 	fb->hf_bytes_per_plane	= bootinfo->fb_height *
    498 					bootinfo->fb_line_bytes;
    499 
    500 	fb->hf_access_flags |= HPCFB_ACCESS_BYTE;
    501 	fb->hf_access_flags |= HPCFB_ACCESS_WORD;
    502 	fb->hf_access_flags |= HPCFB_ACCESS_DWORD;
    503 
    504 	switch (bootinfo->fb_type) {
    505 		/*
    506 		 * gray scale
    507 		 */
    508 	case BIFB_D2_M2L_3:
    509 	case BIFB_D2_M2L_3x2:
    510 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    511 		/* fall through */
    512 	case BIFB_D2_M2L_0:
    513 	case BIFB_D2_M2L_0x2:
    514 		fb->hf_class = HPCFB_CLASS_GRAYSCALE;
    515 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    516 		fb->hf_pack_width = 8;
    517 		fb->hf_pixels_per_pack = 4;
    518 		fb->hf_pixel_width = 2;
    519 		fb->hf_class_data_length = sizeof(struct hf_gray_tag);
    520 		fb->hf_u.hf_gray.hf_flags = 0;	/* reserved for future use */
    521 		break;
    522 
    523 	case BIFB_D4_M2L_F:
    524 	case BIFB_D4_M2L_Fx2:
    525 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    526 		/* fall through */
    527 	case BIFB_D4_M2L_0:
    528 	case BIFB_D4_M2L_0x2:
    529 		fb->hf_class = HPCFB_CLASS_GRAYSCALE;
    530 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    531 		fb->hf_pack_width = 8;
    532 		fb->hf_pixels_per_pack = 2;
    533 		fb->hf_pixel_width = 4;
    534 		fb->hf_class_data_length = sizeof(struct hf_gray_tag);
    535 		fb->hf_u.hf_gray.hf_flags = 0;	/* reserved for future use */
    536 		break;
    537 
    538 		/*
    539 		 * indexed color
    540 		 */
    541 	case BIFB_D8_FF:
    542 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    543 		/* fall through */
    544 	case BIFB_D8_00:
    545 		fb->hf_class = HPCFB_CLASS_INDEXCOLOR;
    546 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    547 		fb->hf_pack_width = 8;
    548 		fb->hf_pixels_per_pack = 1;
    549 		fb->hf_pixel_width = 8;
    550 		fb->hf_class_data_length = sizeof(struct hf_indexed_tag);
    551 		fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */
    552 		break;
    553 
    554 		/*
    555 		 * RGB color
    556 		 */
    557 	case BIFB_D16_FFFF:
    558 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    559 		/* fall through */
    560 	case BIFB_D16_0000:
    561 		fb->hf_class = HPCFB_CLASS_RGBCOLOR;
    562 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    563 #if BYTE_ORDER == LITTLE_ENDIAN
    564 		fb->hf_swap_flags = HPCFB_SWAP_BYTE;
    565 #endif
    566 		fb->hf_pack_width = 16;
    567 		fb->hf_pixels_per_pack = 1;
    568 		fb->hf_pixel_width = 16;
    569 
    570 		fb->hf_class_data_length = sizeof(struct hf_rgb_tag);
    571 		fb->hf_u.hf_rgb.hf_flags = 0;	/* reserved for future use */
    572 
    573 		fb->hf_u.hf_rgb.hf_red_width = 5;
    574 		fb->hf_u.hf_rgb.hf_red_shift = 11;
    575 		fb->hf_u.hf_rgb.hf_green_width = 6;
    576 		fb->hf_u.hf_rgb.hf_green_shift = 5;
    577 		fb->hf_u.hf_rgb.hf_blue_width = 5;
    578 		fb->hf_u.hf_rgb.hf_blue_shift = 0;
    579 		fb->hf_u.hf_rgb.hf_alpha_width = 0;
    580 		fb->hf_u.hf_rgb.hf_alpha_shift = 0;
    581 		break;
    582 
    583 	default:
    584 		printf("unknown type (=%d).\n", bootinfo->fb_type);
    585 		return (-1);
    586 		break;
    587 	}
    588 
    589 	return (0); /* no error */
    590 }
    591 
    592 int
    593 ite8181_ioctl(v, cmd, data, flag, p)
    594 	void *v;
    595 	u_long cmd;
    596 	caddr_t data;
    597 	int flag;
    598 	struct proc *p;
    599 {
    600 	struct ite8181_softc *sc = (struct ite8181_softc *)v;
    601 	struct hpcfb_fbconf *fbconf;
    602 	struct hpcfb_dspconf *dspconf;
    603 	struct wsdisplay_cmap *cmap;
    604 
    605 	switch (cmd) {
    606 	case WSDISPLAYIO_GETCMAP:
    607 		cmap = (struct wsdisplay_cmap*)data;
    608 
    609 		if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR ||
    610 		    sc->sc_fbconf.hf_pack_width != 8 ||
    611 		    256 <= cmap->index ||
    612 		    256 < (cmap->index + cmap->count))
    613 			return (EINVAL);
    614 
    615 		if (!uvm_useracc(cmap->red, cmap->count, B_WRITE) ||
    616 		    !uvm_useracc(cmap->green, cmap->count, B_WRITE) ||
    617 		    !uvm_useracc(cmap->blue, cmap->count, B_WRITE))
    618 			return (EFAULT);
    619 
    620 #ifdef ITE8181_WINCE_CMAP
    621 		copyout(&bivideo_cmap_r[cmap->index], cmap->red, cmap->count);
    622 		copyout(&bivideo_cmap_g[cmap->index], cmap->green,cmap->count);
    623 		copyout(&bivideo_cmap_b[cmap->index], cmap->blue, cmap->count);
    624 		return (0);
    625 #else /* ITE8181_WINCE_CMAP */
    626 		return EINVAL;
    627 #endif /* ITE8181_WINCE_CMAP */
    628 
    629 	case WSDISPLAYIO_PUTCMAP:
    630 		/*
    631 		 * This driver can't set color map.
    632 		 */
    633 		return (EINVAL);
    634 
    635 	case HPCFBIO_GCONF:
    636 		fbconf = (struct hpcfb_fbconf *)data;
    637 		if (fbconf->hf_conf_index != 0 &&
    638 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    639 			return (EINVAL);
    640 		}
    641 		*fbconf = sc->sc_fbconf;	/* structure assignment */
    642 		return (0);
    643 	case HPCFBIO_SCONF:
    644 		fbconf = (struct hpcfb_fbconf *)data;
    645 		if (fbconf->hf_conf_index != 0 &&
    646 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    647 			return (EINVAL);
    648 		}
    649 		/*
    650 		 * nothing to do because we have only one configration
    651 		 */
    652 		return (0);
    653 	case HPCFBIO_GDSPCONF:
    654 		dspconf = (struct hpcfb_dspconf *)data;
    655 		if ((dspconf->hd_unit_index != 0 &&
    656 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    657 		    (dspconf->hd_conf_index != 0 &&
    658 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    659 			return (EINVAL);
    660 		}
    661 		*dspconf = sc->sc_dspconf;	/* structure assignment */
    662 		return (0);
    663 	case HPCFBIO_SDSPCONF:
    664 		dspconf = (struct hpcfb_dspconf *)data;
    665 		if ((dspconf->hd_unit_index != 0 &&
    666 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    667 		    (dspconf->hd_conf_index != 0 &&
    668 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    669 			return (EINVAL);
    670 		}
    671 		/*
    672 		 * nothing to do
    673 		 * because we have only one unit and one configration
    674 		 */
    675 		return (0);
    676 	case HPCFBIO_GOP:
    677 	case HPCFBIO_SOP:
    678 		/*
    679 		 * curently not implemented...
    680 		 */
    681 		return (EINVAL);
    682 	}
    683 
    684 	return (ENOTTY);
    685 }
    686 
    687 paddr_t
    688 ite8181_mmap(ctx, offset, prot)
    689 	void *ctx;
    690 	off_t offset;
    691 	int prot;
    692 {
    693 	struct ite8181_softc *sc = (struct ite8181_softc *)ctx;
    694 
    695 	if (offset < 0 ||
    696 	    (sc->sc_fbconf.hf_bytes_per_plane +
    697 		sc->sc_fbconf.hf_offset) <  offset)
    698 		return -1;
    699 
    700 	return mips_btop((u_long)bootinfo->fb_addr + offset);
    701 }
    702