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mq200.c revision 1.10
      1 /*	$NetBSD: mq200.c,v 1.10 2001/02/27 08:54:18 sato Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 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/param.h>
     33 #include <sys/kernel.h>
     34 #include <sys/device.h>
     35 #include <sys/systm.h>
     36 #include <sys/reboot.h>
     37 
     38 #include <uvm/uvm_extern.h>
     39 
     40 #include <dev/wscons/wsconsio.h>
     41 
     42 #include <machine/bootinfo.h>
     43 #include <machine/bus.h>
     44 #include <machine/autoconf.h>
     45 #include <machine/config_hook.h>
     46 #include <machine/platid.h>
     47 #include <machine/platid_mask.h>
     48 
     49 #include <hpcmips/dev/mq200reg.h>
     50 #include <hpcmips/dev/mq200var.h>
     51 #include "bivideo.h"
     52 #if NBIVIDEO > 0
     53 #include <dev/hpc/bivideovar.h>
     54 #endif
     55 
     56 #define MQ200DEBUG
     57 #ifdef MQ200DEBUG
     58 #ifndef MQ200DEBUG_CONF
     59 #define MQ200DEBUG_CONF 0
     60 #endif
     61 int	mq200_debug = MQ200DEBUG_CONF;
     62 #define	DPRINTF(arg)     do { if (mq200_debug) printf arg; } while(0);
     63 #define	DPRINTFN(n, arg) do { if (mq200_debug > (n)) printf arg; } while (0);
     64 #define	VPRINTF(arg)     do { if (bootverbose || mq200_debug) printf arg; } while(0);
     65 #define	VPRINTFN(n, arg) do { if (bootverbose || mq200_debug > (n)) printf arg; } while (0);
     66 #else
     67 #define	DPRINTF(arg)     do { } while (0);
     68 #define DPRINTFN(n, arg) do { } while (0);
     69 #define	VPRINTF(arg)     do { if (bootverbose) printf arg; } while(0);
     70 #define	VPRINTFN(n, arg) do { if (bootverbose) printf arg; } while (0);
     71 #endif
     72 
     73 /*
     74  * function prototypes
     75  */
     76 static void	mq200_power __P((int, void *));
     77 static int	mq200_hardpower __P((void *, int, long, void *));
     78 static int	mq200_fbinit __P((struct hpcfb_fbconf *));
     79 static int	mq200_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
     80 static paddr_t	mq200_mmap __P((void *, off_t offset, int));
     81 static void	mq200_update_powerstate __P((struct mq200_softc *, int));
     82 void	mq200_get_backlight __P((struct mq200_softc *));
     83 void	mq200_init_brightness __P((struct mq200_softc *));
     84 void	mq200_init_contrast __P((struct mq200_softc *));
     85 void	mq200_set_brightness __P((struct mq200_softc *, int));
     86 void	mq200_set_contrast __P((struct mq200_softc *, int));
     87 
     88 /*
     89  * static variables
     90  */
     91 struct hpcfb_accessops mq200_ha = {
     92 	mq200_ioctl, mq200_mmap
     93 };
     94 
     95 int
     96 mq200_probe(iot, ioh)
     97 	bus_space_tag_t iot;
     98 	bus_space_handle_t ioh;
     99 {
    100 	unsigned long regval;
    101 
    102 #if NBIVIDEO > 0
    103 	if (bivideo_dont_attach) /* some video driver already attached */
    104 		return (0);
    105 #endif /* NBIVIDEO > 0 */
    106 
    107 	regval = bus_space_read_4(iot, ioh, MQ200_PC00R);
    108 	VPRINTF(("mq200 probe: vendor id=%04lx product id=%04lx\n",
    109 		 regval & 0xffff, (regval >> 16) & 0xffff));
    110 	if (regval != ((MQ200_PRODUCT_ID << 16) | MQ200_VENDOR_ID))
    111 		return (0);
    112 
    113 	return (1);
    114 }
    115 
    116 void
    117 mq200_attach(sc)
    118 	struct mq200_softc *sc;
    119 {
    120 	unsigned long regval;
    121 	struct hpcfb_attach_args ha;
    122 	int console = (bootinfo->bi_cnuse & BI_CNUSE_SERIAL) ? 0 : 1;
    123 
    124 	printf(": ");
    125 	if (mq200_fbinit(&sc->sc_fbconf) != 0) {
    126 		/* just return so that hpcfb will not be attached */
    127 		return;
    128 	}
    129 
    130 	sc->sc_fbconf.hf_baseaddr = (u_long)bootinfo->fb_addr;
    131 	sc->sc_fbconf.hf_offset	= (u_long)sc->sc_fbconf.hf_baseaddr -
    132 	    MIPS_PHYS_TO_KSEG1(mips_ptob(mips_btop(sc->sc_baseaddr)));
    133 	DPRINTF(("hf_baseaddr=%lx\n", sc->sc_fbconf.hf_baseaddr));
    134 	DPRINTF(("hf_offset=%lx\n", sc->sc_fbconf.hf_offset));
    135 
    136 	regval = bus_space_read_4(sc->sc_iot, sc->sc_ioh, MQ200_PC08R);
    137 	printf("MQ200 Rev.%02lx video controller", regval & 0xff);
    138 	if (console) {
    139 		printf(", console");
    140 	}
    141 	printf("\n");
    142         printf("%s: framebuffer address: 0x%08lx\n",
    143 		sc->sc_dev.dv_xname, (u_long)bootinfo->fb_addr);
    144 
    145 	/* Add a power hook to power saving */
    146 	sc->sc_mq200pwstate = MQ200_POWERSTATE_D0;
    147 	sc->sc_powerhook = powerhook_establish(mq200_power, sc);
    148 	if (sc->sc_powerhook == NULL)
    149 		printf("%s: WARNING: unable to establish power hook\n",
    150 			sc->sc_dev.dv_xname);
    151 
    152 	/* Add a hard power hook to power saving */
    153 	sc->sc_hardpowerhook = config_hook(CONFIG_HOOK_PMEVENT,
    154 					   CONFIG_HOOK_PMEVENT_HARDPOWER,
    155 					   CONFIG_HOOK_SHARE,
    156 					   mq200_hardpower, sc);
    157 	if (sc->sc_hardpowerhook == NULL)
    158 		printf("%s: WARNING: unable to establish hard power hook\n",
    159 			sc->sc_dev.dv_xname);
    160 
    161 	/* initialize backlight brightness and lcd contrast */
    162 	sc->sc_brightness = sc->sc_contrast =
    163 	sc->sc_max_brightness = sc->sc_max_contrast = -1;
    164 	mq200_init_brightness(sc);
    165 	mq200_init_contrast(sc);
    166 	mq200_get_backlight(sc);
    167 
    168 	if (console && hpcfb_cnattach(&sc->sc_fbconf) != 0) {
    169 		panic("mq200_attach: can't init fb console");
    170 	}
    171 
    172 	ha.ha_console = console;
    173 	ha.ha_accessops = &mq200_ha;
    174 	ha.ha_accessctx = sc;
    175 	ha.ha_curfbconf = 0;
    176 	ha.ha_nfbconf = 1;
    177 	ha.ha_fbconflist = &sc->sc_fbconf;
    178 	ha.ha_curdspconf = 0;
    179 	ha.ha_ndspconf = 1;
    180 	ha.ha_dspconflist = &sc->sc_dspconf;
    181 
    182 	config_found(&sc->sc_dev, &ha, hpcfbprint);
    183 
    184 #if NBIVIDEO > 0
    185 	/*
    186 	 * bivideo is no longer need
    187 	 */
    188 	bivideo_dont_attach = 1;
    189 #endif /* NBIVIDEO > 0 */
    190 }
    191 
    192 static void
    193 mq200_update_powerstate(sc, updates)
    194 	struct mq200_softc *sc;
    195 	int updates;
    196 {
    197 	if (updates & PWRSTAT_LCD)
    198 		config_hook_call(CONFIG_HOOK_POWERCONTROL,
    199 		    CONFIG_HOOK_POWERCONTROL_LCD,
    200 		    (void*)!(sc->sc_powerstate & PWRSTAT_SUSPEND));
    201 
    202 	if (updates & PWRSTAT_BACKLIGHT)
    203 		config_hook_call(CONFIG_HOOK_POWERCONTROL,
    204 		    CONFIG_HOOK_POWERCONTROL_LCDLIGHT,
    205 		    (void*)(!(sc->sc_powerstate & PWRSTAT_SUSPEND) &&
    206 			     (sc->sc_powerstate & PWRSTAT_BACKLIGHT)));
    207 }
    208 
    209 static void
    210 mq200_power(why, arg)
    211 	int why;
    212 	void *arg;
    213 {
    214 #if 0
    215 	struct mq200_softc *sc = arg;
    216 
    217 	switch (why) {
    218 	case PWR_SUSPEND:
    219 		sc->sc_powerstate |= PWRSTAT_SUSPEND;
    220 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    221 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D2;
    222 		break;
    223 	case PWR_STANDBY:
    224 		sc->sc_powerstate |= PWRSTAT_SUSPEND;
    225 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    226 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D3;
    227 		break;
    228 	case PWR_RESUME:
    229 		sc->sc_powerstate &= ~PWRSTAT_SUSPEND;
    230 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    231 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D0;
    232 		break;
    233 	}
    234 
    235 	printf("MQ200_PMCSR=%08x\n", sc->sc_mq200pwstate);
    236 	bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    237 			  MQ200_PMCSR, sc->sc_mq200pwstate);
    238 #endif
    239 }
    240 
    241 static int
    242 mq200_hardpower(ctx, type, id, msg)
    243 	void *ctx;
    244 	int type;
    245 	long id;
    246 	void *msg;
    247 {
    248 	struct mq200_softc *sc = ctx;
    249 	int why = (int)msg;
    250 
    251 	switch (why) {
    252 	case PWR_SUSPEND:
    253 		sc->sc_powerstate |= PWRSTAT_SUSPEND;
    254 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    255 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D2;
    256 		break;
    257 	case PWR_STANDBY:
    258 		sc->sc_powerstate |= PWRSTAT_SUSPEND;
    259 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    260 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D3;
    261 		break;
    262 	case PWR_RESUME:
    263 		sc->sc_powerstate &= ~PWRSTAT_SUSPEND;
    264 		mq200_update_powerstate(sc, PWRSTAT_ALL);
    265 		sc->sc_mq200pwstate = MQ200_POWERSTATE_D0;
    266 		break;
    267 	}
    268 
    269 	bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    270 			  MQ200_PMCSR, sc->sc_mq200pwstate);
    271 
    272 	/*
    273 	 * you should wait until the
    274 	 * power state transit sequence will end.
    275 	 */
    276 	{
    277 		unsigned long tmp;
    278 		do {
    279 			tmp = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    280 					       MQ200_PMCSR);
    281 		} while ((tmp & 0x3) != (sc->sc_mq200pwstate & 0x3));
    282 		delay(100000); /* XXX */
    283 	}
    284 
    285 	return (0);
    286 }
    287 
    288 
    289 static int
    290 mq200_fbinit(fb)
    291 	struct hpcfb_fbconf *fb;
    292 {
    293 
    294 	/*
    295 	 * get fb settings from bootinfo
    296 	 */
    297 	if (bootinfo == NULL ||
    298 	    bootinfo->fb_addr == 0 ||
    299 	    bootinfo->fb_line_bytes == 0 ||
    300 	    bootinfo->fb_width == 0 ||
    301 	    bootinfo->fb_height == 0) {
    302 		printf("no frame buffer infomation.\n");
    303 		return (-1);
    304 	}
    305 
    306 	/* zero fill */
    307 	bzero(fb, sizeof(*fb));
    308 
    309 	fb->hf_conf_index	= 0;	/* configuration index		*/
    310 	fb->hf_nconfs		= 1;   	/* how many configurations	*/
    311 	strcpy(fb->hf_name, "built-in video");
    312 					/* frame buffer name		*/
    313 	strcpy(fb->hf_conf_name, "default");
    314 					/* configuration name		*/
    315 	fb->hf_height		= bootinfo->fb_height;
    316 	fb->hf_width		= bootinfo->fb_width;
    317 	fb->hf_baseaddr		= mips_ptob(mips_btop(bootinfo->fb_addr));
    318 	fb->hf_offset		= (u_long)bootinfo->fb_addr - fb->hf_baseaddr;
    319 					/* frame buffer start offset   	*/
    320 	fb->hf_bytes_per_line	= bootinfo->fb_line_bytes;
    321 	fb->hf_nplanes		= 1;
    322 	fb->hf_bytes_per_plane	= bootinfo->fb_height *
    323 					bootinfo->fb_line_bytes;
    324 
    325 	fb->hf_access_flags |= HPCFB_ACCESS_BYTE;
    326 	fb->hf_access_flags |= HPCFB_ACCESS_WORD;
    327 	fb->hf_access_flags |= HPCFB_ACCESS_DWORD;
    328 
    329 	switch (bootinfo->fb_type) {
    330 		/*
    331 		 * gray scale
    332 		 */
    333 	case BIFB_D2_M2L_3:
    334 	case BIFB_D2_M2L_3x2:
    335 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    336 		/* fall through */
    337 	case BIFB_D2_M2L_0:
    338 	case BIFB_D2_M2L_0x2:
    339 		fb->hf_class = HPCFB_CLASS_GRAYSCALE;
    340 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    341 		fb->hf_pack_width = 8;
    342 		fb->hf_pixels_per_pack = 4;
    343 		fb->hf_pixel_width = 2;
    344 		fb->hf_class_data_length = sizeof(struct hf_gray_tag);
    345 		fb->hf_u.hf_gray.hf_flags = 0;	/* reserved for future use */
    346 		break;
    347 
    348 	case BIFB_D4_M2L_F:
    349 	case BIFB_D4_M2L_Fx2:
    350 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    351 		/* fall through */
    352 	case BIFB_D4_M2L_0:
    353 	case BIFB_D4_M2L_0x2:
    354 		fb->hf_class = HPCFB_CLASS_GRAYSCALE;
    355 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    356 		fb->hf_pack_width = 8;
    357 		fb->hf_pixels_per_pack = 2;
    358 		fb->hf_pixel_width = 4;
    359 		fb->hf_class_data_length = sizeof(struct hf_gray_tag);
    360 		fb->hf_u.hf_gray.hf_flags = 0;	/* reserved for future use */
    361 		break;
    362 
    363 		/*
    364 		 * indexed color
    365 		 */
    366 	case BIFB_D8_FF:
    367 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    368 		/* fall through */
    369 	case BIFB_D8_00:
    370 		fb->hf_class = HPCFB_CLASS_INDEXCOLOR;
    371 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    372 		fb->hf_pack_width = 8;
    373 		fb->hf_pixels_per_pack = 1;
    374 		fb->hf_pixel_width = 8;
    375 		fb->hf_class_data_length = sizeof(struct hf_indexed_tag);
    376 		fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */
    377 		break;
    378 
    379 		/*
    380 		 * RGB color
    381 		 */
    382 	case BIFB_D16_FFFF:
    383 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    384 		/* fall through */
    385 	case BIFB_D16_0000:
    386 		fb->hf_class = HPCFB_CLASS_RGBCOLOR;
    387 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    388 #if BYTE_ORDER == LITTLE_ENDIAN
    389 		fb->hf_swap_flags = HPCFB_SWAP_BYTE;
    390 #endif
    391 		fb->hf_pack_width = 16;
    392 		fb->hf_pixels_per_pack = 1;
    393 		fb->hf_pixel_width = 16;
    394 
    395 		fb->hf_class_data_length = sizeof(struct hf_rgb_tag);
    396 		fb->hf_u.hf_rgb.hf_flags = 0;	/* reserved for future use */
    397 
    398 		fb->hf_u.hf_rgb.hf_red_width = 5;
    399 		fb->hf_u.hf_rgb.hf_red_shift = 11;
    400 		fb->hf_u.hf_rgb.hf_green_width = 6;
    401 		fb->hf_u.hf_rgb.hf_green_shift = 5;
    402 		fb->hf_u.hf_rgb.hf_blue_width = 5;
    403 		fb->hf_u.hf_rgb.hf_blue_shift = 0;
    404 		fb->hf_u.hf_rgb.hf_alpha_width = 0;
    405 		fb->hf_u.hf_rgb.hf_alpha_shift = 0;
    406 		break;
    407 
    408 	default:
    409 		printf("unknown type (=%d).\n", bootinfo->fb_type);
    410 		return (-1);
    411 		break;
    412 	}
    413 
    414 	return (0); /* no error */
    415 }
    416 
    417 int
    418 mq200_ioctl(v, cmd, data, flag, p)
    419 	void *v;
    420 	u_long cmd;
    421 	caddr_t data;
    422 	int flag;
    423 	struct proc *p;
    424 {
    425 	struct mq200_softc *sc = (struct mq200_softc *)v;
    426 	struct hpcfb_fbconf *fbconf;
    427 	struct hpcfb_dspconf *dspconf;
    428 	struct wsdisplay_cmap *cmap;
    429 	struct wsdisplay_param *dispparam;
    430 
    431 	switch (cmd) {
    432 	case WSDISPLAYIO_GETCMAP:
    433 		cmap = (struct wsdisplay_cmap*)data;
    434 
    435 		if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR ||
    436 		    sc->sc_fbconf.hf_pack_width != 8 ||
    437 		    256 <= cmap->index ||
    438 		    256 < (cmap->index + cmap->count))
    439 			return (EINVAL);
    440 
    441 #if 0
    442 		if (!uvm_useracc(cmap->red, cmap->count, B_WRITE) ||
    443 		    !uvm_useracc(cmap->green, cmap->count, B_WRITE) ||
    444 		    !uvm_useracc(cmap->blue, cmap->count, B_WRITE))
    445 			return (EFAULT);
    446 
    447 		copyout(&bivideo_cmap_r[cmap->index], cmap->red, cmap->count);
    448 		copyout(&bivideo_cmap_g[cmap->index], cmap->green,cmap->count);
    449 		copyout(&bivideo_cmap_b[cmap->index], cmap->blue, cmap->count);
    450 #endif
    451 
    452 		return (0);
    453 
    454 	case WSDISPLAYIO_PUTCMAP:
    455 		/*
    456 		 * This driver can't set color map.
    457 		 */
    458 		return (EINVAL);
    459 
    460 	case WSDISPLAYIO_GETPARAM:
    461 		dispparam = (struct wsdisplay_param*)data;
    462 		switch (dispparam->param) {
    463 		case WSDISPLAYIO_PARAM_BACKLIGHT:
    464 			VPRINTF(("mq200_ioctl: GETPARAM:BACKLIGHT call\n"));
    465 			if (sc->sc_max_brightness == -1)
    466 				mq200_init_brightness(sc);
    467 			mq200_get_backlight(sc);
    468 			dispparam->min = 0;
    469 			dispparam->max = 1;
    470 			if (sc->sc_max_brightness > 0)
    471 				dispparam->curval = sc->sc_brightness > 0? 1: 0;
    472 			else
    473 				dispparam->curval =
    474 				    (sc->sc_powerstate&PWRSTAT_BACKLIGHT) ? 1 : 0;
    475 			VPRINTF(("mq200_ioctl: GETPARAM:BACKLIGHT:%d\n",
    476 				dispparam->curval));
    477 			return 0;
    478 			break;
    479 		case WSDISPLAYIO_PARAM_CONTRAST:
    480 			VPRINTF(("mq200_ioctl: GETPARAM:CONTRAST call\n"));
    481 			if (sc->sc_max_contrast == -1)
    482 				mq200_init_contrast(sc);
    483 			if (sc->sc_max_contrast > 0) {
    484 				dispparam->min = 0;
    485 				dispparam->max = sc->sc_max_contrast;
    486 				dispparam->curval = sc->sc_contrast;
    487 				VPRINTF(("mq200_ioctl: GETPARAM:CONTRAST max=%d, current=%d\n", sc->sc_max_contrast, sc->sc_contrast));
    488 				return 0;
    489 			} else {
    490 				VPRINTF(("mq200_ioctl: GETPARAM:CONTRAST ret\n"));
    491 				return (EINVAL);
    492 			}
    493 			break;
    494 		case WSDISPLAYIO_PARAM_BRIGHTNESS:
    495 			VPRINTF(("mq200_ioctl: GETPARAM:BRIGHTNESS call\n"));
    496 			if (sc->sc_max_brightness == -1)
    497 				mq200_init_brightness(sc);
    498 			if (sc->sc_max_brightness > 0) {
    499 				dispparam->min = 0;
    500 				dispparam->max = sc->sc_max_brightness;
    501 				dispparam->curval = sc->sc_brightness;
    502 				VPRINTF(("mq200_ioctl: GETPARAM:BRIGHTNESS max=%d, current=%d\n", sc->sc_max_brightness, sc->sc_brightness));
    503 				return 0;
    504 			} else {
    505 				VPRINTF(("mq200_ioctl: GETPARAM:BRIGHTNESS ret\n"));
    506 				return (EINVAL);
    507 			}
    508 			return (EINVAL);
    509 		default:
    510 			return (EINVAL);
    511 		}
    512 		return (0);
    513 
    514 	case WSDISPLAYIO_SETPARAM:
    515 		dispparam = (struct wsdisplay_param*)data;
    516 		switch (dispparam->param) {
    517 		case WSDISPLAYIO_PARAM_BACKLIGHT:
    518 			VPRINTF(("mq200_ioctl: SETPARAM:BACKLIGHT call\n"));
    519 			if (dispparam->curval < 0 ||
    520 			    1 < dispparam->curval)
    521 				return (EINVAL);
    522 			if (sc->sc_max_brightness == -1)
    523 				mq200_init_brightness(sc);
    524 			VPRINTF(("mq200_ioctl: SETPARAM:max brightness=%d\n", sc->sc_max_brightness));
    525 			if (sc->sc_max_brightness > 0) { /* dimmer */
    526 				if (dispparam->curval == 0){
    527 					sc->sc_brightness_save = sc->sc_brightness;
    528 					mq200_set_brightness(sc, 0);	/* min */
    529 				} else {
    530 					if (sc->sc_brightness_save == 0)
    531 						sc->sc_brightness_save = sc->sc_max_brightness;
    532 					mq200_set_brightness(sc, sc->sc_brightness_save);
    533 				}
    534 				VPRINTF(("mq200_ioctl: SETPARAM:BACKLIGHT: brightness=%d\n", sc->sc_brightness));
    535 			} else { /* off */
    536 				if (dispparam->curval == 0)
    537 					sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT;
    538 				else
    539 					sc->sc_powerstate |= PWRSTAT_BACKLIGHT;
    540 				VPRINTF(("mq200_ioctl: SETPARAM:BACKLIGHT: powerstate %d\n",
    541 						(sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0));
    542 				mq200_update_powerstate(sc, PWRSTAT_BACKLIGHT);
    543 				VPRINTF(("mq200_ioctl: SETPARAM:BACKLIGHT:%d\n",
    544 					(sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0));
    545 			}
    546 			return 0;
    547 			break;
    548 		case WSDISPLAYIO_PARAM_CONTRAST:
    549 			VPRINTF(("mq200_ioctl: SETPARAM:CONTRAST call\n"));
    550 			if (sc->sc_max_contrast == -1)
    551 				mq200_init_contrast(sc);
    552 			if (dispparam->curval < 0 ||
    553 			    sc->sc_max_contrast < dispparam->curval)
    554 				return (EINVAL);
    555 			if (sc->sc_max_contrast > 0) {
    556 				int org = sc->sc_contrast;
    557 				mq200_set_contrast(sc, dispparam->curval);
    558 				VPRINTF(("mq200_ioctl: SETPARAM:CONTRAST org=%d, current=%d\n", org, sc->sc_contrast));
    559 				return 0;
    560 			} else {
    561 				VPRINTF(("mq200_ioctl: SETPARAM:CONTRAST ret\n"));
    562 				return (EINVAL);
    563 			}
    564 			break;
    565 		case WSDISPLAYIO_PARAM_BRIGHTNESS:
    566 			VPRINTF(("mq200_ioctl: SETPARAM:BRIGHTNESS call\n"));
    567 			if (sc->sc_max_brightness == -1)
    568 				mq200_init_brightness(sc);
    569 			if (dispparam->curval < 0 ||
    570 			    sc->sc_max_brightness < dispparam->curval)
    571 				return (EINVAL);
    572 			if (sc->sc_max_brightness > 0) {
    573 				int org = sc->sc_brightness;
    574 				mq200_set_brightness(sc, dispparam->curval);
    575 				VPRINTF(("mq200_ioctl: SETPARAM:BRIGHTNESS org=%d, current=%d\n", org, sc->sc_brightness));
    576 				return 0;
    577 			} else {
    578 				VPRINTF(("mq200_ioctl: SETPARAM:BRIGHTNESS ret\n"));
    579 				return (EINVAL);
    580 			}
    581 			break;
    582 		default:
    583 			return (EINVAL);
    584 		}
    585 		return (0);
    586 
    587 	case HPCFBIO_GCONF:
    588 		fbconf = (struct hpcfb_fbconf *)data;
    589 		if (fbconf->hf_conf_index != 0 &&
    590 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    591 			return (EINVAL);
    592 		}
    593 		*fbconf = sc->sc_fbconf;	/* structure assignment */
    594 		return (0);
    595 	case HPCFBIO_SCONF:
    596 		fbconf = (struct hpcfb_fbconf *)data;
    597 		if (fbconf->hf_conf_index != 0 &&
    598 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    599 			return (EINVAL);
    600 		}
    601 		/*
    602 		 * nothing to do because we have only one configration
    603 		 */
    604 		return (0);
    605 	case HPCFBIO_GDSPCONF:
    606 		dspconf = (struct hpcfb_dspconf *)data;
    607 		if ((dspconf->hd_unit_index != 0 &&
    608 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    609 		    (dspconf->hd_conf_index != 0 &&
    610 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    611 			return (EINVAL);
    612 		}
    613 		*dspconf = sc->sc_dspconf;	/* structure assignment */
    614 		return (0);
    615 	case HPCFBIO_SDSPCONF:
    616 		dspconf = (struct hpcfb_dspconf *)data;
    617 		if ((dspconf->hd_unit_index != 0 &&
    618 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    619 		    (dspconf->hd_conf_index != 0 &&
    620 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    621 			return (EINVAL);
    622 		}
    623 		/*
    624 		 * nothing to do
    625 		 * because we have only one unit and one configration
    626 		 */
    627 		return (0);
    628 	case HPCFBIO_GOP:
    629 	case HPCFBIO_SOP:
    630 		/*
    631 		 * curently not implemented...
    632 		 */
    633 		return (EINVAL);
    634 	}
    635 
    636 	return (ENOTTY);
    637 }
    638 
    639 paddr_t
    640 mq200_mmap(ctx, offset, prot)
    641 	void *ctx;
    642 	off_t offset;
    643 	int prot;
    644 {
    645 	struct mq200_softc *sc = (struct mq200_softc *)ctx;
    646 
    647 	if (offset < 0 || MQ200_MAPSIZE <= offset)
    648 		return -1;
    649 
    650 	return mips_btop(sc->sc_baseaddr + offset);
    651 }
    652 
    653 
    654 void
    655 mq200_get_backlight(sc)
    656 	struct mq200_softc *sc;
    657 {
    658 	int val = -1;
    659 
    660 	if (sc->sc_max_brightness < 0) {
    661 		if (config_hook_call(CONFIG_HOOK_GET,
    662 		     CONFIG_HOOK_POWER_LCDLIGHT, &val) != -1) {
    663 			if (val == 0)
    664 				sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT;
    665 			else
    666 				sc->sc_powerstate |= PWRSTAT_BACKLIGHT;
    667 		}
    668 	}
    669 }
    670 
    671 void
    672 mq200_init_brightness(sc)
    673 	struct mq200_softc *sc;
    674 {
    675 	int val = -1;
    676 
    677 	VPRINTF(("mq200_init_brightness\n"));
    678 	if (config_hook_call(CONFIG_HOOK_GET,
    679 	     CONFIG_HOOK_BRIGHTNESS, &val) != -1) {
    680 		sc->sc_brightness_save = sc->sc_brightness = val;
    681 	}
    682 	val = -1;
    683 	if (config_hook_call(CONFIG_HOOK_GET,
    684 	     CONFIG_HOOK_BRIGHTNESS_MAX, &val) != -1) {
    685 		sc->sc_max_brightness = val;
    686 	}
    687 	return;
    688 }
    689 
    690 
    691 void
    692 mq200_init_contrast(sc)
    693 	struct mq200_softc *sc;
    694 {
    695 	int val = -1;
    696 
    697 	VPRINTF(("mq200_init_contrast\n"));
    698 	if (config_hook_call(CONFIG_HOOK_GET,
    699 	     CONFIG_HOOK_CONTRAST, &val) != -1) {
    700 		sc->sc_contrast = val;
    701 	}
    702 	val = -1;
    703 	if (config_hook_call(CONFIG_HOOK_GET,
    704 	     CONFIG_HOOK_CONTRAST_MAX, &val) != -1) {
    705 		sc->sc_max_contrast = val;
    706 	}
    707 	return;
    708 }
    709 
    710 void
    711 mq200_set_brightness(sc, val)
    712 	struct mq200_softc *sc;
    713 	int val;
    714 {
    715 	sc->sc_brightness = val;
    716 
    717 	config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_BRIGHTNESS, &val);
    718 	if (config_hook_call(CONFIG_HOOK_GET,
    719 	     CONFIG_HOOK_BRIGHTNESS, &val) != -1) {
    720 		sc->sc_brightness = val;
    721 	}
    722 }
    723 
    724 void
    725 mq200_set_contrast(sc, val)
    726 	struct mq200_softc *sc;
    727 	int val;
    728 {
    729 	sc->sc_contrast = val;
    730 
    731 	config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_CONTRAST, &val);
    732 	if (config_hook_call(CONFIG_HOOK_GET,
    733 	     CONFIG_HOOK_CONTRAST, &val) != -1) {
    734 		sc->sc_contrast = val;
    735 	}
    736 }
    737