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mq200.c revision 1.22
      1 /*	$NetBSD: mq200.c,v 1.22 2003/07/15 02:29:29 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2001 TAKEMURA Shin
      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  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  *
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: mq200.c,v 1.22 2003/07/15 02:29:29 lukem Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/kernel.h>
     37 #include <sys/device.h>
     38 #include <sys/systm.h>
     39 #include <sys/reboot.h>
     40 
     41 #include <uvm/uvm_extern.h>
     42 
     43 #include <dev/wscons/wsconsio.h>
     44 
     45 #include <machine/bootinfo.h>
     46 #include <machine/bus.h>
     47 #include <machine/autoconf.h>
     48 #include <machine/config_hook.h>
     49 #include <machine/platid.h>
     50 #include <machine/platid_mask.h>
     51 
     52 #include "opt_mq200.h"
     53 #include <hpcmips/dev/mq200reg.h>
     54 #include <hpcmips/dev/mq200var.h>
     55 #include <hpcmips/dev/mq200priv.h>
     56 
     57 #include "bivideo.h"
     58 #if NBIVIDEO > 0
     59 #include <dev/hpc/bivideovar.h>
     60 #endif
     61 
     62 /*
     63  * function prototypes
     64  */
     65 static void	mq200_power(int, void *);
     66 static int	mq200_hardpower(void *, int, long, void *);
     67 static int	mq200_fbinit(struct hpcfb_fbconf *);
     68 static int	mq200_ioctl(void *, u_long, caddr_t, int, struct proc *);
     69 static paddr_t	mq200_mmap(void *, off_t offset, int);
     70 static void	mq200_update_powerstate(struct mq200_softc *, int);
     71 void	mq200_init_backlight(struct mq200_softc *, int);
     72 void	mq200_init_brightness(struct mq200_softc *, int);
     73 void	mq200_init_contrast(struct mq200_softc *, int);
     74 void	mq200_set_brightness(struct mq200_softc *, int);
     75 void	mq200_set_contrast(struct mq200_softc *, int);
     76 
     77 /*
     78  * static variables
     79  */
     80 struct hpcfb_accessops mq200_ha = {
     81 	mq200_ioctl, mq200_mmap
     82 };
     83 
     84 #ifdef MQ200_DEBUG
     85 int mq200_debug = MQ200DEBUG_CONF;
     86 #endif
     87 
     88 int
     89 mq200_probe(bus_space_tag_t iot, bus_space_handle_t ioh)
     90 {
     91 	unsigned long regval;
     92 
     93 #if NBIVIDEO > 0
     94 	if (bivideo_dont_attach) /* some video driver already attached */
     95 		return (0);
     96 #endif /* NBIVIDEO > 0 */
     97 
     98 	regval = bus_space_read_4(iot, ioh, MQ200_PC00R);
     99 	VPRINTF("probe: vendor id=%04lx product id=%04lx\n",
    100 	    regval & 0xffff, (regval >> 16) & 0xffff);
    101 	if (regval != ((MQ200_PRODUCT_ID << 16) | MQ200_VENDOR_ID))
    102 		return (0);
    103 
    104 	return (1);
    105 }
    106 
    107 void
    108 mq200_attach(struct mq200_softc *sc)
    109 {
    110 	unsigned long regval;
    111 	struct hpcfb_attach_args ha;
    112 	int console = (bootinfo->bi_cnuse & BI_CNUSE_SERIAL) ? 0 : 1;
    113 
    114 	printf(": ");
    115 	if (mq200_fbinit(&sc->sc_fbconf) != 0) {
    116 		/* just return so that hpcfb will not be attached */
    117 		return;
    118 	}
    119 
    120 	sc->sc_fbconf.hf_baseaddr = (u_long)bootinfo->fb_addr;
    121 	sc->sc_fbconf.hf_offset	= (u_long)sc->sc_fbconf.hf_baseaddr -
    122 	    MIPS_PHYS_TO_KSEG1(mips_ptob(mips_btop(sc->sc_baseaddr)));
    123 	DPRINTF("hf_baseaddr=%lx\n", sc->sc_fbconf.hf_baseaddr);
    124 	DPRINTF("hf_offset=%lx\n", sc->sc_fbconf.hf_offset);
    125 
    126 	regval = mq200_read(sc, MQ200_PC08R);
    127 	printf("MQ200 Rev.%02lx video controller", regval & 0xff);
    128 	if (console) {
    129 		printf(", console");
    130 	}
    131 	printf("\n");
    132         printf("%s: framebuffer address: 0x%08lx\n",
    133 	    sc->sc_dev.dv_xname, (u_long)bootinfo->fb_addr);
    134 
    135 	/*
    136 	 * setup registers
    137 	 */
    138 	sc->sc_flags = 0;
    139 	sc->sc_baseclock = 12288;	/* 12.288 MHz */
    140 #ifdef MQ200_DEBUG
    141 	if (bootverbose) {
    142 		/* dump current setting	*/
    143 		mq200_dump_all(sc);
    144 		mq200_dump_pll(sc);
    145 	}
    146 #endif
    147 	mq200_setup_regctx(sc);
    148 	mq200_mdsetup(sc);
    149 	if (sc->sc_md) {
    150 		int mode;
    151 
    152 		switch (sc->sc_fbconf.hf_pixel_width) {
    153 		case  1:	mode = MQ200_GCC_1BPP;		break;
    154 		case  2:	mode = MQ200_GCC_2BPP;		break;
    155 		case  4:	mode = MQ200_GCC_4BPP;		break;
    156 		case  8:	mode = MQ200_GCC_8BPP;		break;
    157 		case 16:	mode = MQ200_GCC_16BPP_DIRECT;	break;
    158 		default:
    159 			printf("%s: %dbpp isn't supported\n",
    160 			    sc->sc_dev.dv_xname, sc->sc_fbconf.hf_pixel_width);
    161 			return;
    162 		}
    163 
    164 		if (sc->sc_md->md_flags & MQ200_MD_HAVEFP) {
    165 			sc->sc_flags |= MQ200_SC_GC2_ENABLE;	/* FP	*/
    166 		}
    167 #if MQ200_USECRT
    168 		if (sc->sc_md->md_flags & MQ200_MD_HAVECRT) {
    169 			int i;
    170 			sc->sc_flags |= MQ200_SC_GC1_ENABLE;	/* CRT	*/
    171 			for (i = 0; i < mq200_crt_nparams; i++) {
    172 				sc->sc_crt = &mq200_crt_params[i];
    173 				if (sc->sc_md->md_fp_width <=
    174 				    mq200_crt_params[i].width &&
    175 				    sc->sc_md->md_fp_height <=
    176 				    mq200_crt_params[i].height)
    177 					break;
    178 			}
    179 		}
    180 #endif
    181 		mq200_setup(sc);
    182 
    183 		if (sc->sc_flags & MQ200_SC_GC2_ENABLE)	/* FP	*/
    184 			mq200_win_enable(sc, MQ200_GC2, mode,
    185 			    sc->sc_fbconf.hf_baseaddr,
    186 			    sc->sc_fbconf.hf_width, sc->sc_fbconf.hf_height,
    187 			    sc->sc_fbconf.hf_bytes_per_plane);
    188 		if (sc->sc_flags & MQ200_SC_GC1_ENABLE)	/* CRT	*/
    189 			mq200_win_enable(sc, MQ200_GC1, mode,
    190 			    sc->sc_fbconf.hf_baseaddr,
    191 			    sc->sc_fbconf.hf_width, sc->sc_fbconf.hf_height,
    192 			    sc->sc_fbconf.hf_bytes_per_plane);
    193 	}
    194 #ifdef MQ200_DEBUG
    195 	if (sc->sc_md == NULL || bootverbose) {
    196 		mq200_dump_pll(sc);
    197 	}
    198 #endif
    199 
    200 	/* Add a power hook to power saving */
    201 	sc->sc_mq200pwstate = MQ200_POWERSTATE_D0;
    202 	sc->sc_powerhook = powerhook_establish(mq200_power, sc);
    203 	if (sc->sc_powerhook == NULL)
    204 		printf("%s: WARNING: unable to establish power hook\n",
    205 		    sc->sc_dev.dv_xname);
    206 
    207 	/* Add a hard power hook to power saving */
    208 	sc->sc_hardpowerhook = config_hook(CONFIG_HOOK_PMEVENT,
    209 	    CONFIG_HOOK_PMEVENT_HARDPOWER,
    210 	    CONFIG_HOOK_SHARE,
    211 	    mq200_hardpower, sc);
    212 	if (sc->sc_hardpowerhook == NULL)
    213 		printf("%s: WARNING: unable to establish hard power hook\n",
    214 		    sc->sc_dev.dv_xname);
    215 
    216 	/* initialize backlight brightness and lcd contrast */
    217 	sc->sc_lcd_inited = 0;
    218 	mq200_init_brightness(sc, 1);
    219 	mq200_init_contrast(sc, 1);
    220 	mq200_init_backlight(sc, 1);
    221 
    222 	if (console && hpcfb_cnattach(&sc->sc_fbconf) != 0) {
    223 		panic("mq200_attach: can't init fb console");
    224 	}
    225 
    226 	ha.ha_console = console;
    227 	ha.ha_accessops = &mq200_ha;
    228 	ha.ha_accessctx = sc;
    229 	ha.ha_curfbconf = 0;
    230 	ha.ha_nfbconf = 1;
    231 	ha.ha_fbconflist = &sc->sc_fbconf;
    232 	ha.ha_curdspconf = 0;
    233 	ha.ha_ndspconf = 1;
    234 	ha.ha_dspconflist = &sc->sc_dspconf;
    235 
    236 	config_found(&sc->sc_dev, &ha, hpcfbprint);
    237 
    238 #if NBIVIDEO > 0
    239 	/*
    240 	 * bivideo is no longer need
    241 	 */
    242 	bivideo_dont_attach = 1;
    243 #endif /* NBIVIDEO > 0 */
    244 }
    245 
    246 static void
    247 mq200_update_powerstate(struct mq200_softc *sc, int updates)
    248 {
    249 
    250 	if (updates & PWRSTAT_LCD)
    251 		config_hook_call(CONFIG_HOOK_POWERCONTROL,
    252 		    CONFIG_HOOK_POWERCONTROL_LCD,
    253 		    (void*)!(sc->sc_powerstate &
    254 			(PWRSTAT_VIDEOOFF|PWRSTAT_SUSPEND)));
    255 
    256 	if (updates & PWRSTAT_BACKLIGHT)
    257 		config_hook_call(CONFIG_HOOK_POWERCONTROL,
    258 		    CONFIG_HOOK_POWERCONTROL_LCDLIGHT,
    259 		    (void*)(!(sc->sc_powerstate &
    260 			(PWRSTAT_VIDEOOFF|PWRSTAT_SUSPEND)) &&
    261 			(sc->sc_powerstate & PWRSTAT_BACKLIGHT)));
    262 }
    263 
    264 static void
    265 mq200_power(int why, void *arg)
    266 {
    267 	struct mq200_softc *sc = arg;
    268 
    269 	switch (why) {
    270 	case PWR_SUSPEND:
    271 		sc->sc_powerstate |= PWRSTAT_SUSPEND;
    272 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    273 		break;
    274 	case PWR_STANDBY:
    275 		sc->sc_powerstate |= PWRSTAT_SUSPEND;
    276 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    277 		break;
    278 	case PWR_RESUME:
    279 		sc->sc_powerstate &= ~PWRSTAT_SUSPEND;
    280 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    281 		break;
    282 	}
    283 }
    284 
    285 static int
    286 mq200_hardpower(void *ctx, int type, long id, void *msg)
    287 {
    288 	struct mq200_softc *sc = ctx;
    289 	int why = (int)msg;
    290 
    291 	switch (why) {
    292 	case PWR_SUSPEND:
    293 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D2;
    294 		break;
    295 	case PWR_STANDBY:
    296 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D3;
    297 		break;
    298 	case PWR_RESUME:
    299 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D0;
    300 		break;
    301 	}
    302 
    303 	bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    304 	    MQ200_PMCSR, sc->sc_mq200pwstate);
    305 
    306 	/*
    307 	 * you should wait until the
    308 	 * power state transit sequence will end.
    309 	 */
    310 	{
    311 		unsigned long tmp;
    312 		do {
    313 			tmp = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    314 			    MQ200_PMCSR);
    315 		} while ((tmp & 0x3) != (sc->sc_mq200pwstate & 0x3));
    316 		delay(100000); /* XXX */
    317 	}
    318 
    319 	return (0);
    320 }
    321 
    322 
    323 static int
    324 mq200_fbinit(struct hpcfb_fbconf *fb)
    325 {
    326 
    327 	/*
    328 	 * get fb settings from bootinfo
    329 	 */
    330 	if (bootinfo == NULL ||
    331 	    bootinfo->fb_addr == 0 ||
    332 	    bootinfo->fb_line_bytes == 0 ||
    333 	    bootinfo->fb_width == 0 ||
    334 	    bootinfo->fb_height == 0) {
    335 		printf("no frame buffer information.\n");
    336 		return (-1);
    337 	}
    338 
    339 	/* zero fill */
    340 	bzero(fb, sizeof(*fb));
    341 
    342 	fb->hf_conf_index	= 0;	/* configuration index		*/
    343 	fb->hf_nconfs		= 1;   	/* how many configurations	*/
    344 	strcpy(fb->hf_name, "built-in video");
    345 					/* frame buffer name		*/
    346 	strcpy(fb->hf_conf_name, "default");
    347 					/* configuration name		*/
    348 	fb->hf_height		= bootinfo->fb_height;
    349 	fb->hf_width		= bootinfo->fb_width;
    350 	fb->hf_baseaddr		= mips_ptob(mips_btop(bootinfo->fb_addr));
    351 	fb->hf_offset		= (u_long)bootinfo->fb_addr - fb->hf_baseaddr;
    352 					/* frame buffer start offset   	*/
    353 	fb->hf_bytes_per_line	= bootinfo->fb_line_bytes;
    354 	fb->hf_nplanes		= 1;
    355 	fb->hf_bytes_per_plane	= bootinfo->fb_height *
    356 	    bootinfo->fb_line_bytes;
    357 
    358 	fb->hf_access_flags |= HPCFB_ACCESS_BYTE;
    359 	fb->hf_access_flags |= HPCFB_ACCESS_WORD;
    360 	fb->hf_access_flags |= HPCFB_ACCESS_DWORD;
    361 
    362 	switch (bootinfo->fb_type) {
    363 		/*
    364 		 * monochrome
    365 		 */
    366 	case BIFB_D1_M2L_1:
    367 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    368 		/* fall through */
    369 	case BIFB_D1_M2L_0:
    370 		fb->hf_class = HPCFB_CLASS_GRAYSCALE;
    371 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    372 		fb->hf_pack_width = 8;
    373 		fb->hf_pixels_per_pack = 8;
    374 		fb->hf_pixel_width = 1;
    375 		fb->hf_class_data_length = sizeof(struct hf_gray_tag);
    376 		fb->hf_u.hf_gray.hf_flags = 0;	/* reserved for future use */
    377 		break;
    378 
    379 		/*
    380 		 * gray scale
    381 		 */
    382 	case BIFB_D2_M2L_3:
    383 	case BIFB_D2_M2L_3x2:
    384 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    385 		/* fall through */
    386 	case BIFB_D2_M2L_0:
    387 	case BIFB_D2_M2L_0x2:
    388 		fb->hf_class = HPCFB_CLASS_GRAYSCALE;
    389 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    390 		fb->hf_pack_width = 8;
    391 		fb->hf_pixels_per_pack = 4;
    392 		fb->hf_pixel_width = 2;
    393 		fb->hf_class_data_length = sizeof(struct hf_gray_tag);
    394 		fb->hf_u.hf_gray.hf_flags = 0;	/* reserved for future use */
    395 		break;
    396 
    397 	case BIFB_D4_M2L_F:
    398 	case BIFB_D4_M2L_Fx2:
    399 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    400 		/* fall through */
    401 	case BIFB_D4_M2L_0:
    402 	case BIFB_D4_M2L_0x2:
    403 		fb->hf_class = HPCFB_CLASS_GRAYSCALE;
    404 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    405 		fb->hf_pack_width = 8;
    406 		fb->hf_pixels_per_pack = 2;
    407 		fb->hf_pixel_width = 4;
    408 		fb->hf_class_data_length = sizeof(struct hf_gray_tag);
    409 		fb->hf_u.hf_gray.hf_flags = 0;	/* reserved for future use */
    410 		break;
    411 
    412 		/*
    413 		 * indexed color
    414 		 */
    415 	case BIFB_D8_FF:
    416 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    417 		/* fall through */
    418 	case BIFB_D8_00:
    419 		fb->hf_class = HPCFB_CLASS_INDEXCOLOR;
    420 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    421 		fb->hf_pack_width = 8;
    422 		fb->hf_pixels_per_pack = 1;
    423 		fb->hf_pixel_width = 8;
    424 		fb->hf_class_data_length = sizeof(struct hf_indexed_tag);
    425 		fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */
    426 		break;
    427 
    428 		/*
    429 		 * RGB color
    430 		 */
    431 	case BIFB_D16_FFFF:
    432 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    433 		/* fall through */
    434 	case BIFB_D16_0000:
    435 		fb->hf_class = HPCFB_CLASS_RGBCOLOR;
    436 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    437 		fb->hf_order_flags = HPCFB_REVORDER_BYTE;
    438 		fb->hf_pack_width = 16;
    439 		fb->hf_pixels_per_pack = 1;
    440 		fb->hf_pixel_width = 16;
    441 
    442 		fb->hf_class_data_length = sizeof(struct hf_rgb_tag);
    443 		fb->hf_u.hf_rgb.hf_flags = 0;	/* reserved for future use */
    444 
    445 		fb->hf_u.hf_rgb.hf_red_width = 5;
    446 		fb->hf_u.hf_rgb.hf_red_shift = 11;
    447 		fb->hf_u.hf_rgb.hf_green_width = 6;
    448 		fb->hf_u.hf_rgb.hf_green_shift = 5;
    449 		fb->hf_u.hf_rgb.hf_blue_width = 5;
    450 		fb->hf_u.hf_rgb.hf_blue_shift = 0;
    451 		fb->hf_u.hf_rgb.hf_alpha_width = 0;
    452 		fb->hf_u.hf_rgb.hf_alpha_shift = 0;
    453 		break;
    454 
    455 	default:
    456 		printf("unknown type (=%d).\n", bootinfo->fb_type);
    457 		return (-1);
    458 		break;
    459 	}
    460 
    461 	return (0); /* no error */
    462 }
    463 
    464 int
    465 mq200_ioctl(v, cmd, data, flag, p)
    466 	void *v;
    467 	u_long cmd;
    468 	caddr_t data;
    469 	int flag;
    470 	struct proc *p;
    471 {
    472 	struct mq200_softc *sc = (struct mq200_softc *)v;
    473 	struct hpcfb_fbconf *fbconf;
    474 	struct hpcfb_dspconf *dspconf;
    475 	struct wsdisplay_cmap *cmap;
    476 	struct wsdisplay_param *dispparam;
    477 
    478 	switch (cmd) {
    479 	case WSDISPLAYIO_GETCMAP:
    480 		cmap = (struct wsdisplay_cmap*)data;
    481 
    482 		if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR ||
    483 		    sc->sc_fbconf.hf_pack_width != 8 ||
    484 		    256 <= cmap->index ||
    485 		    256 - cmap->index < cmap->count)
    486 			return (EINVAL);
    487 
    488 #if 0
    489 		if (!uvm_useracc(cmap->red, cmap->count, B_WRITE) ||
    490 		    !uvm_useracc(cmap->green, cmap->count, B_WRITE) ||
    491 		    !uvm_useracc(cmap->blue, cmap->count, B_WRITE))
    492 			return (EFAULT);
    493 
    494 		copyout(&bivideo_cmap_r[cmap->index], cmap->red, cmap->count);
    495 		copyout(&bivideo_cmap_g[cmap->index], cmap->green,cmap->count);
    496 		copyout(&bivideo_cmap_b[cmap->index], cmap->blue, cmap->count);
    497 #endif
    498 
    499 		return (0);
    500 
    501 	case WSDISPLAYIO_PUTCMAP:
    502 		/*
    503 		 * This driver can't set color map.
    504 		 */
    505 		return (EINVAL);
    506 
    507 	case WSDISPLAYIO_SVIDEO:
    508 		if (*(int *)data == WSDISPLAYIO_VIDEO_OFF)
    509 			sc->sc_powerstate |= PWRSTAT_VIDEOOFF;
    510 		else
    511 			sc->sc_powerstate &= ~PWRSTAT_VIDEOOFF;
    512 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    513 		return 0;
    514 
    515 	case WSDISPLAYIO_GVIDEO:
    516 		*(int *)data = (sc->sc_powerstate&PWRSTAT_VIDEOOFF) ?
    517 		    WSDISPLAYIO_VIDEO_OFF:WSDISPLAYIO_VIDEO_ON;
    518 		return 0;
    519 
    520 	case WSDISPLAYIO_GETPARAM:
    521 		dispparam = (struct wsdisplay_param*)data;
    522 		switch (dispparam->param) {
    523 		case WSDISPLAYIO_PARAM_BACKLIGHT:
    524 			VPRINTF("ioctl: GET:BACKLIGHT\n");
    525 			mq200_init_brightness(sc, 0);
    526 			mq200_init_backlight(sc, 0);
    527 			VPRINTF("ioctl: GET:(real)BACKLIGHT %d\n",
    528 			    (sc->sc_powerstate&PWRSTAT_BACKLIGHT)? 1: 0);
    529 			dispparam->min = 0;
    530 			dispparam->max = 1;
    531 			if (sc->sc_max_brightness > 0)
    532 				dispparam->curval = sc->sc_brightness > 0
    533 				    ? 1: 0;
    534 			else
    535 				dispparam->curval =
    536 				    (sc->sc_powerstate&PWRSTAT_BACKLIGHT)
    537 				    ? 1: 0;
    538 			VPRINTF("ioctl: GET:BACKLIGHT:%d(%s)\n",
    539 			    dispparam->curval,
    540 			    sc->sc_max_brightness > 0? "brightness": "light");
    541 			return 0;
    542 			break;
    543 		case WSDISPLAYIO_PARAM_CONTRAST:
    544 			VPRINTF("ioctl: GET:CONTRAST\n");
    545 			mq200_init_contrast(sc, 0);
    546 			if (sc->sc_max_contrast > 0) {
    547 				dispparam->min = 0;
    548 				dispparam->max = sc->sc_max_contrast;
    549 				dispparam->curval = sc->sc_contrast;
    550 				VPRINTF("ioctl: GET:CONTRAST"
    551 				    " max=%d, current=%d\n",
    552 				    sc->sc_max_contrast, sc->sc_contrast);
    553 				return 0;
    554 			} else {
    555 				VPRINTF("ioctl: GET:CONTRAST EINVAL\n");
    556 				return (EINVAL);
    557 			}
    558 			break;
    559 		case WSDISPLAYIO_PARAM_BRIGHTNESS:
    560 			VPRINTF("ioctl: GET:BRIGHTNESS\n");
    561 			mq200_init_brightness(sc, 0);
    562 			if (sc->sc_max_brightness > 0) {
    563 				dispparam->min = 0;
    564 				dispparam->max = sc->sc_max_brightness;
    565 				dispparam->curval = sc->sc_brightness;
    566 				VPRINTF("ioctl: GET:BRIGHTNESS"
    567 				    " max=%d, current=%d\n",
    568 				    sc->sc_max_brightness, sc->sc_brightness);
    569 				return 0;
    570 			} else {
    571 				VPRINTF("ioctl: GET:BRIGHTNESS EINVAL\n");
    572 				return (EINVAL);
    573 			}
    574 			return (EINVAL);
    575 		default:
    576 			return (EINVAL);
    577 		}
    578 		return (0);
    579 
    580 	case WSDISPLAYIO_SETPARAM:
    581 		dispparam = (struct wsdisplay_param*)data;
    582 		switch (dispparam->param) {
    583 		case WSDISPLAYIO_PARAM_BACKLIGHT:
    584 			VPRINTF("ioctl: SET:BACKLIGHT\n");
    585 			if (dispparam->curval < 0 ||
    586 			    1 < dispparam->curval)
    587 				return (EINVAL);
    588 			mq200_init_brightness(sc, 0);
    589 			VPRINTF("ioctl: SET:max brightness=%d\n",
    590 			    sc->sc_max_brightness);
    591 			if (sc->sc_max_brightness > 0) { /* dimmer */
    592 				if (dispparam->curval == 0){
    593 					sc->sc_brightness_save =
    594 					    sc->sc_brightness;
    595 					mq200_set_brightness(sc, 0); /* min */
    596 				} else {
    597 					if (sc->sc_brightness_save == 0)
    598 						sc->sc_brightness_save =
    599 						    sc->sc_max_brightness;
    600 					mq200_set_brightness(sc,
    601 					    sc->sc_brightness_save);
    602 				}
    603 				VPRINTF("ioctl: SET:BACKLIGHT:"
    604 				    " brightness=%d\n", sc->sc_brightness);
    605 			} else { /* off */
    606 				if (dispparam->curval == 0)
    607 					sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT;
    608 				else
    609 					sc->sc_powerstate |= PWRSTAT_BACKLIGHT;
    610 				VPRINTF("ioctl: SET:BACKLIGHT:"
    611 				    " powerstate %d\n",
    612 				    (sc->sc_powerstate & PWRSTAT_BACKLIGHT)
    613 				    ? 1 : 0);
    614 				mq200_update_powerstate(sc, PWRSTAT_BACKLIGHT);
    615 				VPRINTF("ioctl: SET:BACKLIGHT:%d\n",
    616 				    (sc->sc_powerstate & PWRSTAT_BACKLIGHT)
    617 				    ? 1 : 0);
    618 			}
    619 			return 0;
    620 			break;
    621 		case WSDISPLAYIO_PARAM_CONTRAST:
    622 			VPRINTF("ioctl: SET:CONTRAST\n");
    623 			mq200_init_contrast(sc, 0);
    624 			if (dispparam->curval < 0 ||
    625 			    sc->sc_max_contrast < dispparam->curval)
    626 				return (EINVAL);
    627 			if (sc->sc_max_contrast > 0) {
    628 				int org = sc->sc_contrast;
    629 				mq200_set_contrast(sc, dispparam->curval);
    630 				VPRINTF("ioctl: SET:CONTRAST"
    631 				    " org=%d, current=%d\n", org,
    632 				    sc->sc_contrast);
    633 				VPRINTF("ioctl: SETPARAM:"
    634 				    " CONTRAST org=%d, current=%d\n", org,
    635 				    sc->sc_contrast);
    636 				return 0;
    637 			} else {
    638 				VPRINTF("ioctl: SET:CONTRAST EINVAL\n");
    639 				return (EINVAL);
    640 			}
    641 			break;
    642 		case WSDISPLAYIO_PARAM_BRIGHTNESS:
    643 			VPRINTF("ioctl: SET:BRIGHTNESS\n");
    644 			mq200_init_brightness(sc, 0);
    645 			if (dispparam->curval < 0 ||
    646 			    sc->sc_max_brightness < dispparam->curval)
    647 				return (EINVAL);
    648 			if (sc->sc_max_brightness > 0) {
    649 				int org = sc->sc_brightness;
    650 				mq200_set_brightness(sc, dispparam->curval);
    651 				VPRINTF("ioctl: SET:BRIGHTNESS"
    652 				    " org=%d, current=%d\n", org,
    653 				    sc->sc_brightness);
    654 				return 0;
    655 			} else {
    656 				VPRINTF("ioctl: SET:BRIGHTNESS EINVAL\n");
    657 				return (EINVAL);
    658 			}
    659 			break;
    660 		default:
    661 			return (EINVAL);
    662 		}
    663 		return (0);
    664 
    665 	case HPCFBIO_GCONF:
    666 		fbconf = (struct hpcfb_fbconf *)data;
    667 		if (fbconf->hf_conf_index != 0 &&
    668 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    669 			return (EINVAL);
    670 		}
    671 		*fbconf = sc->sc_fbconf;	/* structure assignment */
    672 		return (0);
    673 	case HPCFBIO_SCONF:
    674 		fbconf = (struct hpcfb_fbconf *)data;
    675 		if (fbconf->hf_conf_index != 0 &&
    676 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    677 			return (EINVAL);
    678 		}
    679 		/*
    680 		 * nothing to do because we have only one configration
    681 		 */
    682 		return (0);
    683 	case HPCFBIO_GDSPCONF:
    684 		dspconf = (struct hpcfb_dspconf *)data;
    685 		if ((dspconf->hd_unit_index != 0 &&
    686 		    dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    687 		    (dspconf->hd_conf_index != 0 &&
    688 			dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    689 			return (EINVAL);
    690 		}
    691 		*dspconf = sc->sc_dspconf;	/* structure assignment */
    692 		return (0);
    693 	case HPCFBIO_SDSPCONF:
    694 		dspconf = (struct hpcfb_dspconf *)data;
    695 		if ((dspconf->hd_unit_index != 0 &&
    696 		    dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    697 		    (dspconf->hd_conf_index != 0 &&
    698 			dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    699 			return (EINVAL);
    700 		}
    701 		/*
    702 		 * nothing to do
    703 		 * because we have only one unit and one configration
    704 		 */
    705 		return (0);
    706 	case HPCFBIO_GOP:
    707 	case HPCFBIO_SOP:
    708 		/*
    709 		 * curently not implemented...
    710 		 */
    711 		return (EINVAL);
    712 	}
    713 
    714 	return (EPASSTHROUGH);
    715 }
    716 
    717 paddr_t
    718 mq200_mmap(void *ctx, off_t offset, int prot)
    719 {
    720 	struct mq200_softc *sc = (struct mq200_softc *)ctx;
    721 
    722 	if (offset < 0 || MQ200_MAPSIZE <= offset)
    723 		return -1;
    724 
    725 	return mips_btop(sc->sc_baseaddr + offset);
    726 }
    727 
    728 
    729 void
    730 mq200_init_backlight(struct mq200_softc *sc, int inattach)
    731 {
    732 	int val = -1;
    733 
    734 	if (sc->sc_lcd_inited&BACKLIGHT_INITED)
    735 		return;
    736 
    737 	if (config_hook_call(CONFIG_HOOK_GET,
    738 	    CONFIG_HOOK_POWER_LCDLIGHT, &val) != -1) {
    739 		/* we can get real light state */
    740 		VPRINTF("init_backlight: real backlight=%d\n", val);
    741 		if (val == 0)
    742 			sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT;
    743 		else
    744 			sc->sc_powerstate |= PWRSTAT_BACKLIGHT;
    745 		sc->sc_lcd_inited |= BACKLIGHT_INITED;
    746 	} else if (inattach) {
    747 		/*
    748 		   we cannot get real light state in attach time
    749 		   because light device not yet attached.
    750 		   we will retry in !inattach.
    751 		   temporary assume light is on.
    752 		*/
    753 		sc->sc_powerstate |= PWRSTAT_BACKLIGHT;
    754 	} else {
    755 		/* we cannot get real light state, so work by myself state */
    756 		sc->sc_lcd_inited |= BACKLIGHT_INITED;
    757 	}
    758 }
    759 
    760 void
    761 mq200_init_brightness(struct mq200_softc *sc, int inattach)
    762 {
    763 	int val = -1;
    764 
    765 	if (sc->sc_lcd_inited&BRIGHTNESS_INITED)
    766 		return;
    767 
    768 	VPRINTF("init_brightness\n");
    769 	if (config_hook_call(CONFIG_HOOK_GET,
    770 	    CONFIG_HOOK_BRIGHTNESS_MAX, &val) != -1) {
    771 		/* we can get real brightness max */
    772 		VPRINTF("init_brightness: real brightness max=%d\n", val);
    773 		sc->sc_max_brightness = val;
    774 		val = -1;
    775 		if (config_hook_call(CONFIG_HOOK_GET,
    776 		    CONFIG_HOOK_BRIGHTNESS, &val) != -1) {
    777 			/* we can get real brightness */
    778 			VPRINTF("init_brightness: real brightness=%d\n", val);
    779 			sc->sc_brightness_save = sc->sc_brightness = val;
    780 		} else {
    781 			sc->sc_brightness_save =
    782 			    sc->sc_brightness = sc->sc_max_brightness;
    783 		}
    784 		sc->sc_lcd_inited |= BRIGHTNESS_INITED;
    785 	} else if (inattach) {
    786 		/*
    787 		   we cannot get real brightness in attach time
    788 		   because brightness device not yet attached.
    789 		   we will retry in !inattach.
    790 		*/
    791 		sc->sc_max_brightness = -1;
    792 		sc->sc_brightness = -1;
    793 		sc->sc_brightness_save = -1;
    794 	} else {
    795 		/* we cannot get real brightness */
    796 		sc->sc_lcd_inited |= BRIGHTNESS_INITED;
    797 	}
    798 
    799 	return;
    800 }
    801 
    802 
    803 void
    804 mq200_init_contrast(struct mq200_softc *sc, int inattach)
    805 {
    806 	int val = -1;
    807 
    808 	if (sc->sc_lcd_inited&CONTRAST_INITED)
    809 		return;
    810 
    811 	VPRINTF("init_contrast\n");
    812 	if (config_hook_call(CONFIG_HOOK_GET,
    813 	    CONFIG_HOOK_CONTRAST_MAX, &val) != -1) {
    814 		/* we can get real contrast max */
    815 		VPRINTF("init_contrast: real contrast max=%d\n", val);
    816 		sc->sc_max_contrast = val;
    817 		val = -1;
    818 		if (config_hook_call(CONFIG_HOOK_GET,
    819 		    CONFIG_HOOK_CONTRAST, &val) != -1) {
    820 			/* we can get real contrast */
    821 			VPRINTF("init_contrast: real contrast=%d\n", val);
    822 			sc->sc_contrast = val;
    823 		} else {
    824 			sc->sc_contrast = sc->sc_max_contrast;
    825 		}
    826 		sc->sc_lcd_inited |= CONTRAST_INITED;
    827 	} else if (inattach) {
    828 		/*
    829 		   we cannot get real contrast in attach time
    830 		   because contrast device not yet attached.
    831 		   we will retry in !inattach.
    832 		*/
    833 		sc->sc_max_contrast = -1;
    834 		sc->sc_contrast = -1;
    835 	} else {
    836 		/* we cannot get real contrast */
    837 		sc->sc_lcd_inited |= CONTRAST_INITED;
    838 	}
    839 
    840 	return;
    841 }
    842 
    843 
    844 void
    845 mq200_set_brightness(struct mq200_softc *sc, int val)
    846 {
    847 	sc->sc_brightness = val;
    848 
    849 	config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_BRIGHTNESS, &val);
    850 	if (config_hook_call(CONFIG_HOOK_GET,
    851 	    CONFIG_HOOK_BRIGHTNESS, &val) != -1) {
    852 		sc->sc_brightness = val;
    853 	}
    854 }
    855 
    856 void
    857 mq200_set_contrast(struct mq200_softc *sc, int val)
    858 {
    859 	sc->sc_contrast = val;
    860 
    861 	config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_CONTRAST, &val);
    862 	if (config_hook_call(CONFIG_HOOK_GET,
    863 	    CONFIG_HOOK_CONTRAST, &val) != -1) {
    864 		sc->sc_contrast = val;
    865 	}
    866 }
    867