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plumvideo.c revision 1.16
      1 /*	$NetBSD: plumvideo.c,v 1.16 2000/12/03 13:43:40 takemura Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #undef PLUMVIDEODEBUG
     40 #include "opt_tx39_debug.h"
     41 #include "plumohci.h" /* Plum2 OHCI shared memory allocated on V-RAM */
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/device.h>
     46 
     47 #include <sys/ioctl.h>
     48 #include <sys/buf.h>
     49 #include <uvm/uvm_extern.h>
     50 
     51 #include <dev/cons.h> /* consdev */
     52 
     53 #include <machine/bus.h>
     54 #include <machine/intr.h>
     55 #include <machine/config_hook.h>
     56 
     57 #include <hpcmips/tx/tx39var.h>
     58 #include <hpcmips/dev/plumvar.h>
     59 #include <hpcmips/dev/plumicuvar.h>
     60 #include <hpcmips/dev/plumpowervar.h>
     61 #include <hpcmips/dev/plumvideoreg.h>
     62 
     63 #include <machine/bootinfo.h>
     64 
     65 #include <dev/wscons/wsdisplayvar.h>
     66 #include <dev/rasops/rasops.h>
     67 #include <arch/hpcmips/dev/video_subr.h>
     68 
     69 #include <dev/wscons/wsconsio.h>
     70 #include <arch/hpcmips/dev/hpcfbvar.h>
     71 #include <arch/hpcmips/dev/hpcfbio.h>
     72 
     73 #ifdef PLUMVIDEODEBUG
     74 int	plumvideo_debug = 1;
     75 #define	DPRINTF(arg) if (plumvideo_debug) printf arg;
     76 #define	DPRINTFN(n, arg) if (plumvideo_debug > (n)) printf arg;
     77 #else
     78 #define	DPRINTF(arg)
     79 #define DPRINTFN(n, arg)
     80 #endif
     81 
     82 struct plumvideo_softc {
     83 	struct device sc_dev;
     84 	tx_chipset_tag_t sc_tc;
     85 	plum_chipset_tag_t sc_pc;
     86 
     87 	void *sc_powerhook;	/* power management hook */
     88 	int sc_console;
     89 
     90 	/* control register */
     91 	bus_space_tag_t sc_regt;
     92 	bus_space_handle_t sc_regh;
     93 	/* frame buffer */
     94 	bus_space_tag_t sc_fbiot;
     95 	bus_space_handle_t sc_fbioh;
     96 	/* clut buffer (8bpp only) */
     97 	bus_space_tag_t sc_clutiot;
     98 	bus_space_handle_t sc_clutioh;
     99 	/* bitblt */
    100 	bus_space_tag_t sc_bitbltt;
    101 	bus_space_handle_t sc_bitblth;
    102 
    103 	struct video_chip sc_chip;
    104 	struct hpcfb_fbconf sc_fbconf;
    105 	struct hpcfb_dspconf sc_dspconf;
    106 };
    107 
    108 int	plumvideo_match(struct device*, struct cfdata*, void*);
    109 void	plumvideo_attach(struct device*, struct device*, void*);
    110 
    111 int	plumvideo_ioctl(void *, u_long, caddr_t, int, struct proc *);
    112 paddr_t	plumvideo_mmap(void *, off_t, int);
    113 
    114 struct cfattach plumvideo_ca = {
    115 	sizeof(struct plumvideo_softc), plumvideo_match, plumvideo_attach
    116 };
    117 
    118 struct hpcfb_accessops plumvideo_ha = {
    119 	plumvideo_ioctl, plumvideo_mmap
    120 };
    121 
    122 int	plumvideo_power(void *, int, long, void *);
    123 
    124 int	plumvideo_init(struct plumvideo_softc *, int *);
    125 void	plumvideo_hpcfbinit(struct plumvideo_softc *, int);
    126 
    127 void	plumvideo_clut_default(struct plumvideo_softc *);
    128 void	plumvideo_clut_set(struct plumvideo_softc *, u_int32_t *, int, int);
    129 void	plumvideo_clut_get(struct plumvideo_softc *, u_int32_t *, int, int);
    130 void	__plumvideo_clut_access(struct plumvideo_softc *,
    131 				void (*)(bus_space_tag_t, bus_space_handle_t));
    132 static void _flush_cache(void) __attribute__((__unused__)); /* !!! */
    133 
    134 #ifdef PLUMVIDEODEBUG
    135 void	plumvideo_dump(struct plumvideo_softc*);
    136 #endif
    137 
    138 #define ON	1
    139 #define OFF	0
    140 
    141 int
    142 plumvideo_match(struct device *parent, struct cfdata *cf, void *aux)
    143 {
    144 	/*
    145 	 * VRAM area also uses as UHOSTC shared RAM.
    146 	 */
    147 	return (2); /* 1st attach group */
    148 }
    149 
    150 void
    151 plumvideo_attach(struct device *parent, struct device *self, void *aux)
    152 {
    153 	struct plum_attach_args *pa = aux;
    154 	struct plumvideo_softc *sc = (void*)self;
    155 	struct hpcfb_attach_args ha;
    156 	int console, reverse_flag;
    157 
    158 	sc->sc_console = console = cn_tab ? 0 : 1;
    159 	sc->sc_pc	= pa->pa_pc;
    160 	sc->sc_regt	= pa->pa_regt;
    161 	sc->sc_fbiot = sc->sc_clutiot = sc->sc_bitbltt  = pa->pa_iot;
    162 
    163 	printf(": ");
    164 
    165 	/* map register area */
    166 	if (bus_space_map(sc->sc_regt, PLUM_VIDEO_REGBASE,
    167 			  PLUM_VIDEO_REGSIZE, 0, &sc->sc_regh)) {
    168 		printf("register map failed\n");
    169 		return;
    170 	}
    171 
    172 	/* power control */
    173 	plumvideo_power(sc, 0, 0,
    174 			(void *)(console ? PWR_RESUME : PWR_SUSPEND));
    175 	/* Add a hard power hook to power saving */
    176 	sc->sc_powerhook = config_hook(CONFIG_HOOK_PMEVENT,
    177 				       CONFIG_HOOK_PMEVENT_HARDPOWER,
    178 				       CONFIG_HOOK_SHARE,
    179 				       plumvideo_power, sc);
    180 	if (sc->sc_powerhook == 0)
    181 		printf("WARNING unable to establish hard power hook");
    182 
    183 	/*
    184 	 *  Initialize LCD controller
    185 	 *	map V-RAM area.
    186 	 *	reinstall bootinfo structure.
    187 	 *	some OHCI shared-buffer hack. XXX
    188 	 */
    189 	if (plumvideo_init(sc, &reverse_flag) != 0)
    190 		return;
    191 
    192 	printf("\n");
    193 
    194 	/* Attach frame buffer device */
    195 	plumvideo_hpcfbinit(sc, reverse_flag);
    196 
    197 #ifdef PLUMVIDEODEBUG
    198 	if (plumvideo_debug > 0)
    199 		plumvideo_dump(sc);
    200 	/* attach debug draw routine (debugging use) */
    201 	video_attach_drawfunc(&sc->sc_chip);
    202 	tx_conf_register_video(sc->sc_pc->pc_tc, &sc->sc_chip);
    203 #endif /* PLUMVIDEODEBUG */
    204 
    205 	if(console && hpcfb_cnattach(&sc->sc_fbconf) != 0) {
    206 		panic("plumvideo_attach: can't init fb console");
    207 	}
    208 
    209 	ha.ha_console = console;
    210 	ha.ha_accessops = &plumvideo_ha;
    211 	ha.ha_accessctx = sc;
    212 	ha.ha_curfbconf = 0;
    213 	ha.ha_nfbconf = 1;
    214 	ha.ha_fbconflist = &sc->sc_fbconf;
    215 	ha.ha_curdspconf = 0;
    216 	ha.ha_ndspconf = 1;
    217 	ha.ha_dspconflist = &sc->sc_dspconf;
    218 
    219 	config_found(self, &ha, hpcfbprint);
    220 }
    221 
    222 void
    223 plumvideo_hpcfbinit(struct plumvideo_softc *sc, int reverse_flag)
    224 {
    225 	struct hpcfb_fbconf *fb = &sc->sc_fbconf;
    226 	struct video_chip *chip = &sc->sc_chip;
    227 	vaddr_t fbvaddr = (vaddr_t)sc->sc_fbioh;
    228 	int height = chip->vc_fbheight;
    229 	int width = chip->vc_fbwidth;
    230 	int depth = chip->vc_fbdepth;
    231 
    232 	memset(fb, 0, sizeof(struct hpcfb_fbconf));
    233 
    234 	fb->hf_conf_index	= 0;	/* configuration index		*/
    235 	fb->hf_nconfs		= 1;   	/* how many configurations	*/
    236 	strncpy(fb->hf_name, "PLUM built-in video", HPCFB_MAXNAMELEN);
    237 	/* frame buffer name		*/
    238 	strncpy(fb->hf_conf_name, "LCD", HPCFB_MAXNAMELEN);
    239 	/* configuration name		*/
    240 	fb->hf_height		= height;
    241 	fb->hf_width		= width;
    242 	fb->hf_baseaddr		= (u_long)fbvaddr;
    243 	fb->hf_offset		= (u_long)fbvaddr - mips_ptob(mips_btop(fbvaddr));
    244 	/* frame buffer start offset   	*/
    245 	fb->hf_bytes_per_line	= (width * depth) / NBBY;
    246 	fb->hf_nplanes		= 1;
    247 	fb->hf_bytes_per_plane	= height * fb->hf_bytes_per_line;
    248 
    249 	fb->hf_access_flags |= HPCFB_ACCESS_BYTE;
    250 	fb->hf_access_flags |= HPCFB_ACCESS_WORD;
    251 	fb->hf_access_flags |= HPCFB_ACCESS_DWORD;
    252 	if (reverse_flag)
    253 		fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
    254 
    255 	switch (depth) {
    256 	default:
    257 		panic("plumvideo_hpcfbinit: not supported color depth\n");
    258 		/* NOTREACHED */
    259 	case 16:
    260 		fb->hf_class = HPCFB_CLASS_RGBCOLOR;
    261 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    262 		fb->hf_pack_width = 16;
    263 		fb->hf_pixels_per_pack = 1;
    264 		fb->hf_pixel_width = 16;
    265 
    266 		fb->hf_class_data_length = sizeof(struct hf_rgb_tag);
    267 		/* reserved for future use */
    268 		fb->hf_u.hf_rgb.hf_flags = 0;
    269 
    270 		fb->hf_u.hf_rgb.hf_red_width = 5;
    271 		fb->hf_u.hf_rgb.hf_red_shift = 11;
    272 		fb->hf_u.hf_rgb.hf_green_width = 6;
    273 		fb->hf_u.hf_rgb.hf_green_shift = 5;
    274 		fb->hf_u.hf_rgb.hf_blue_width = 5;
    275 		fb->hf_u.hf_rgb.hf_blue_shift = 0;
    276 		fb->hf_u.hf_rgb.hf_alpha_width = 0;
    277 		fb->hf_u.hf_rgb.hf_alpha_shift = 0;
    278 		break;
    279 
    280 	case 8:
    281 		fb->hf_class = HPCFB_CLASS_INDEXCOLOR;
    282 		fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
    283 		fb->hf_pack_width = 8;
    284 		fb->hf_pixels_per_pack = 1;
    285 		fb->hf_pixel_width = 8;
    286 		fb->hf_class_data_length = sizeof(struct hf_indexed_tag);
    287 		/* reserved for future use */
    288 		fb->hf_u.hf_indexed.hf_flags = 0;
    289 		break;
    290 	}
    291 }
    292 
    293 int
    294 plumvideo_init(struct plumvideo_softc *sc, int *reverse)
    295 {
    296 	struct video_chip *chip = &sc->sc_chip;
    297 	bus_space_tag_t regt = sc->sc_regt;
    298 	bus_space_handle_t regh = sc->sc_regh;
    299 	plumreg_t reg;
    300 	size_t vram_size;
    301 	int bpp, width, height, vram_pitch;
    302 
    303 	*reverse = video_reverse_color();
    304 	chip->vc_v = sc->sc_pc->pc_tc;
    305 #if notyet
    306 	/* map BitBlt area */
    307 	if (bus_space_map(sc->sc_bitbltt,
    308 			  PLUM_VIDEO_BITBLT_IOBASE,
    309 			  PLUM_VIDEO_BITBLT_IOSIZE, 0,
    310 			  &sc->sc_bitblth)) {
    311 		printf(": BitBlt map failed\n");
    312 		return (1);
    313 	}
    314 #endif
    315 	reg = plum_conf_read(regt, regh, PLUM_VIDEO_PLGMD_REG);
    316 
    317 	switch (reg & PLUM_VIDEO_PLGMD_GMODE_MASK) {
    318 	case PLUM_VIDEO_PLGMD_16BPP:
    319 #if NPLUMOHCI > 0 /* reserve V-RAM area for USB OHCI */
    320 		/* FALLTHROUGH */
    321 #else
    322 		bpp = 16;
    323 		break;
    324 #endif
    325 	default:
    326 		bootinfo->fb_type = *reverse ? BIFB_D8_FF : BIFB_D8_00;
    327 		reg &= ~PLUM_VIDEO_PLGMD_GMODE_MASK;
    328 		plum_conf_write(regt, regh, PLUM_VIDEO_PLGMD_REG, reg);
    329 		reg |= PLUM_VIDEO_PLGMD_8BPP;
    330 		plum_conf_write(regt, regh, PLUM_VIDEO_PLGMD_REG, reg);
    331 #if notyet
    332 		/* change BitBlt color depth */
    333 		plum_conf_write(sc->sc_bitbltt, sc->sc_bitblth, 0x8, 0);
    334 #endif
    335 		/* FALLTHROUGH */
    336 	case PLUM_VIDEO_PLGMD_8BPP:
    337 		bpp = 8;
    338 		break;
    339 	}
    340 	chip->vc_fbdepth = bpp;
    341 
    342 	/*
    343 	 * Get display size from WindowsCE setted.
    344 	 */
    345 	chip->vc_fbwidth = width = bootinfo->fb_width =
    346 		plum_conf_read(regt, regh, PLUM_VIDEO_PLHPX_REG) + 1;
    347 	chip->vc_fbheight = height = bootinfo->fb_height =
    348 		plum_conf_read(regt, regh, PLUM_VIDEO_PLVT_REG) -
    349 		plum_conf_read(regt, regh, PLUM_VIDEO_PLVDS_REG);
    350 
    351 	/*
    352 	 * set line byte length to bootinfo and LCD controller.
    353 	 */
    354 	vram_pitch = bootinfo->fb_line_bytes = (width * bpp) / NBBY;
    355 	plum_conf_write(regt, regh, PLUM_VIDEO_PLPIT1_REG, vram_pitch);
    356 	plum_conf_write(regt, regh, PLUM_VIDEO_PLPIT2_REG,
    357 			vram_pitch & PLUM_VIDEO_PLPIT2_MASK);
    358 	plum_conf_write(regt, regh, PLUM_VIDEO_PLOFS_REG, vram_pitch);
    359 
    360 	/*
    361 	 * boot messages and map CLUT(if any).
    362 	 */
    363 	printf("display mode: ");
    364 	switch (bpp) {
    365 	default:
    366 		printf("disabled ");
    367 		break;
    368 	case 8:
    369 		printf("8bpp ");
    370 		/* map CLUT area */
    371 		if (bus_space_map(sc->sc_clutiot,
    372 				  PLUM_VIDEO_CLUT_LCD_IOBASE,
    373 				  PLUM_VIDEO_CLUT_LCD_IOSIZE, 0,
    374 				  &sc->sc_clutioh)) {
    375 			printf(": CLUT map failed\n");
    376 			return (1);
    377 		}
    378 		/* install default CLUT */
    379 		plumvideo_clut_default(sc);
    380 		break;
    381 	case 16:
    382 		printf("16bpp ");
    383 		break;
    384 	}
    385 
    386 	/*
    387 	 * calcurate frame buffer size.
    388 	 */
    389 	reg = plum_conf_read(regt, regh, PLUM_VIDEO_PLGMD_REG);
    390 	vram_size = (width * height * bpp) / NBBY;
    391 	vram_size = mips_round_page(vram_size);
    392 	chip->vc_fbsize = vram_size;
    393 
    394 	/*
    395 	 * map V-RAM area.
    396 	 */
    397 	if (bus_space_map(sc->sc_fbiot, PLUM_VIDEO_VRAM_IOBASE,
    398 			  vram_size, 0, &sc->sc_fbioh)) {
    399 		printf(": V-RAM map failed\n");
    400 		return (1);
    401 	}
    402 
    403 	bootinfo->fb_addr = (unsigned char *)sc->sc_fbioh;
    404 	chip->vc_fbvaddr = (vaddr_t)sc->sc_fbioh;
    405 	chip->vc_fbpaddr = PLUM_VIDEO_VRAM_IOBASE_PHYSICAL;
    406 
    407 	return (0);
    408 }
    409 
    410 int
    411 plumvideo_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
    412 {
    413 	struct plumvideo_softc *sc = (struct plumvideo_softc *)v;
    414 	struct hpcfb_fbconf *fbconf;
    415 	struct hpcfb_dspconf *dspconf;
    416 	struct wsdisplay_cmap *cmap;
    417 	u_int8_t *r, *g, *b;
    418 	u_int32_t *rgb;
    419 	int idx, cnt, error;
    420 
    421 	switch (cmd) {
    422 	case WSDISPLAYIO_GETCMAP:
    423 		cmap = (struct wsdisplay_cmap*)data;
    424 		cnt = cmap->count;
    425 		idx = cmap->index;
    426 
    427 		if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR ||
    428 		    sc->sc_fbconf.hf_pack_width != 8 ||
    429 		    !LEGAL_CLUT_INDEX(idx) ||
    430 		    !LEGAL_CLUT_INDEX(idx + cnt -1)) {
    431 			return (EINVAL);
    432 		}
    433 
    434 		if (!uvm_useracc(cmap->red, cnt, B_WRITE) ||
    435 		    !uvm_useracc(cmap->green, cnt, B_WRITE) ||
    436 		    !uvm_useracc(cmap->blue, cnt, B_WRITE)) {
    437 			return (EFAULT);
    438 		}
    439 
    440 		error = cmap_work_alloc(&r, &g, &b, &rgb, cnt);
    441 		if (error != 0) {
    442 			cmap_work_free(r, g, b, rgb);
    443 			return  (ENOMEM);
    444 		}
    445 		plumvideo_clut_get(sc, rgb, idx, cnt);
    446 		rgb24_decompose(rgb, r, g, b, cnt);
    447 
    448 		copyout(r, cmap->red, cnt);
    449 		copyout(g, cmap->green,cnt);
    450 		copyout(b, cmap->blue, cnt);
    451 
    452 		cmap_work_free(r, g, b, rgb);
    453 
    454 		return (0);
    455 
    456 	case WSDISPLAYIO_PUTCMAP:
    457 		cmap = (struct wsdisplay_cmap*)data;
    458 		cnt = cmap->count;
    459 		idx = cmap->index;
    460 
    461 		if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR ||
    462 		    sc->sc_fbconf.hf_pack_width != 8 ||
    463 		    !LEGAL_CLUT_INDEX(idx) ||
    464 		    !LEGAL_CLUT_INDEX(idx + cnt -1)) {
    465 			return (EINVAL);
    466 		}
    467 
    468 		if (!uvm_useracc(cmap->red, cnt, B_WRITE) ||
    469 		    !uvm_useracc(cmap->green, cnt, B_WRITE) ||
    470 		    !uvm_useracc(cmap->blue, cnt, B_WRITE)) {
    471 			return (EFAULT);
    472 		}
    473 
    474 		error = cmap_work_alloc(&r, &g, &b, &rgb, cnt);
    475 		if (error != 0) {
    476 			cmap_work_free(r, g, b, rgb);
    477 			return  (ENOMEM);
    478 		}
    479 		rgb24_compose(rgb, r, g, b, cnt);
    480 		plumvideo_clut_set(sc, rgb, idx, cnt);
    481 
    482 		cmap_work_free(r, g, b, rgb);
    483 
    484 		return (0);
    485 
    486 	case HPCFBIO_GCONF:
    487 		fbconf = (struct hpcfb_fbconf *)data;
    488 		if (fbconf->hf_conf_index != 0 &&
    489 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    490 			return (EINVAL);
    491 		}
    492 		*fbconf = sc->sc_fbconf;	/* structure assignment */
    493 		return (0);
    494 
    495 	case HPCFBIO_SCONF:
    496 		fbconf = (struct hpcfb_fbconf *)data;
    497 		if (fbconf->hf_conf_index != 0 &&
    498 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    499 			return (EINVAL);
    500 		}
    501 		/*
    502 		 * nothing to do because we have only one configration
    503 		 */
    504 		return (0);
    505 
    506 	case HPCFBIO_GDSPCONF:
    507 		dspconf = (struct hpcfb_dspconf *)data;
    508 		if ((dspconf->hd_unit_index != 0 &&
    509 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    510 		    (dspconf->hd_conf_index != 0 &&
    511 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    512 			return (EINVAL);
    513 		}
    514 		*dspconf = sc->sc_dspconf;	/* structure assignment */
    515 		return (0);
    516 
    517 	case HPCFBIO_SDSPCONF:
    518 		dspconf = (struct hpcfb_dspconf *)data;
    519 		if ((dspconf->hd_unit_index != 0 &&
    520 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    521 		    (dspconf->hd_conf_index != 0 &&
    522 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    523 			return (EINVAL);
    524 		}
    525 		/*
    526 		 * nothing to do
    527 		 * because we have only one unit and one configration
    528 		 */
    529 		return (0);
    530 
    531 	case HPCFBIO_GOP:
    532 	case HPCFBIO_SOP:
    533 		/* XXX not implemented yet */
    534 		return (EINVAL);
    535 	}
    536 
    537 	return (ENOTTY);
    538 }
    539 
    540 paddr_t
    541 plumvideo_mmap(void *ctx, off_t offset, int prot)
    542 {
    543 	struct plumvideo_softc *sc = (struct plumvideo_softc *)ctx;
    544 
    545 	if (offset < 0 || (sc->sc_fbconf.hf_bytes_per_plane +
    546 			   sc->sc_fbconf.hf_offset) <  offset) {
    547 		return (-1);
    548 	}
    549 
    550 	return (mips_btop(PLUM_VIDEO_VRAM_IOBASE_PHYSICAL + offset));
    551 }
    552 
    553 void
    554 plumvideo_clut_get(struct plumvideo_softc *sc, u_int32_t *rgb, int beg,
    555 		   int cnt)
    556 {
    557 	static void __plumvideo_clut_get(bus_space_tag_t,
    558 					      bus_space_handle_t);
    559 	static void __plumvideo_clut_get(iot, ioh)
    560 		bus_space_tag_t iot;
    561 		bus_space_handle_t ioh;
    562 	{
    563 		int i;
    564 
    565 		for (i = 0, beg *= 4; i < cnt; i++, beg += 4) {
    566 			*rgb++ = bus_space_read_4(iot, ioh, beg) &
    567 				0x00ffffff;
    568 		}
    569 	}
    570 
    571 	KASSERT(rgb);
    572 	KASSERT(LEGAL_CLUT_INDEX(beg));
    573 	KASSERT(LEGAL_CLUT_INDEX(beg + cnt - 1));
    574 	__plumvideo_clut_access(sc, __plumvideo_clut_get);
    575 }
    576 
    577 void
    578 plumvideo_clut_set(struct plumvideo_softc *sc, u_int32_t *rgb, int beg,
    579 		   int cnt)
    580 {
    581 	static void __plumvideo_clut_set(bus_space_tag_t,
    582 					      bus_space_handle_t);
    583 	static void __plumvideo_clut_set(iot, ioh)
    584 		bus_space_tag_t iot;
    585 		bus_space_handle_t ioh;
    586 	{
    587 		int i;
    588 
    589 		for (i = 0, beg *= 4; i < cnt; i++, beg +=4) {
    590 			bus_space_write_4(iot, ioh, beg,
    591 					  *rgb++ & 0x00ffffff);
    592 		}
    593 	}
    594 
    595 	KASSERT(rgb);
    596 	KASSERT(LEGAL_CLUT_INDEX(beg));
    597 	KASSERT(LEGAL_CLUT_INDEX(beg + cnt - 1));
    598 	__plumvideo_clut_access(sc, __plumvideo_clut_set);
    599 }
    600 
    601 void
    602 plumvideo_clut_default(struct plumvideo_softc *sc)
    603 {
    604 	static void __plumvideo_clut_default(bus_space_tag_t,
    605 						  bus_space_handle_t);
    606 	static void __plumvideo_clut_default(iot, ioh)
    607 		bus_space_tag_t iot;
    608 		bus_space_handle_t ioh;
    609 	{
    610 		const u_int8_t compo6[6] = { 0,  51, 102, 153, 204, 255 };
    611 		const u_int32_t ansi_color[16] = {
    612 			0x000000, 0xff0000, 0x00ff00, 0xffff00,
    613 			0x0000ff, 0xff00ff, 0x00ffff, 0xffffff,
    614 			0x000000, 0x800000, 0x008000, 0x808000,
    615 			0x000080, 0x800080, 0x008080, 0x808080,
    616 		};
    617 		int i, r, g, b;
    618 
    619 		/* ANSI escape sequence */
    620 		for (i = 0; i < 16; i++) {
    621 			bus_space_write_4(iot, ioh, i << 2, ansi_color[i]);
    622 		}
    623 		/* 16 - 31, gray scale */
    624 		for ( ; i < 32; i++) {
    625 			int j = (i - 16) * 17;
    626 			bus_space_write_4(iot, ioh, i << 2, RGB24(j, j, j));
    627 		}
    628 		/* 32 - 247, RGB color */
    629 		for (r = 0; r < 6; r++) {
    630 			for (g = 0; g < 6; g++) {
    631 				for (b = 0; b < 6; b++) {
    632 					bus_space_write_4(iot, ioh, i << 2,
    633 							  RGB24(compo6[r],
    634 								compo6[g],
    635 								compo6[b]));
    636 					i++;
    637 				}
    638 			}
    639 		}
    640 		/* 248 - 245, just white */
    641 		for ( ; i < 256; i++) {
    642 			bus_space_write_4(iot, ioh, i << 2, 0xffffff);
    643 		}
    644 	}
    645 
    646 	__plumvideo_clut_access(sc, __plumvideo_clut_default);
    647 }
    648 
    649 void
    650 __plumvideo_clut_access(struct plumvideo_softc *sc, void (*palette_func)
    651 			(bus_space_tag_t, bus_space_handle_t))
    652 {
    653 	bus_space_tag_t regt = sc->sc_regt;
    654 	bus_space_handle_t regh = sc->sc_regh;
    655 	plumreg_t val, gmode;
    656 
    657 	/* display off */
    658 	val = bus_space_read_4(regt, regh, PLUM_VIDEO_PLGMD_REG);
    659 	gmode = val & PLUM_VIDEO_PLGMD_GMODE_MASK;
    660 	val &= ~PLUM_VIDEO_PLGMD_GMODE_MASK;
    661 	bus_space_write_4(regt, regh, PLUM_VIDEO_PLGMD_REG, val);
    662 
    663 	/* palette access disable */
    664 	val &= ~PLUM_VIDEO_PLGMD_PALETTE_ENABLE;
    665 	bus_space_write_4(regt, regh, PLUM_VIDEO_PLGMD_REG, val);
    666 
    667 	/* change palette mode to CPU */
    668 	val &= ~PLUM_VIDEO_PLGMD_MODE_DISPLAY;
    669 	bus_space_write_4(regt, regh, PLUM_VIDEO_PLGMD_REG, val);
    670 
    671 	/* palette access */
    672 	(*palette_func) (sc->sc_clutiot, sc->sc_clutioh);
    673 
    674 	/* change palette mode to Display */
    675 	val |= PLUM_VIDEO_PLGMD_MODE_DISPLAY;
    676 	bus_space_write_4(regt, regh, PLUM_VIDEO_PLGMD_REG, val);
    677 
    678 	/* palette access enable */
    679 	val |= PLUM_VIDEO_PLGMD_PALETTE_ENABLE;
    680 	bus_space_write_4(regt, regh, PLUM_VIDEO_PLGMD_REG, val);
    681 
    682 	/* display on */
    683 	val |= gmode;
    684 	bus_space_write_4(regt, regh, PLUM_VIDEO_PLGMD_REG, val);
    685 }
    686 
    687 /* !!! */
    688 static void
    689 _flush_cache()
    690 {
    691 	MachFlushCache();
    692 }
    693 
    694 int
    695 plumvideo_power(void *ctx, int type, long id, void *msg)
    696 {
    697 	struct plumvideo_softc *sc = ctx;
    698 	plum_chipset_tag_t pc = sc->sc_pc;
    699 	bus_space_tag_t regt = sc->sc_regt;
    700 	bus_space_handle_t regh = sc->sc_regh;
    701 	int why = (int)msg;
    702 
    703 	switch (why) {
    704 	case PWR_RESUME:
    705 		if (!sc->sc_console)
    706 			return 0; /* serial console */
    707 
    708 		DPRINTF(("%s: ON\n", sc->sc_dev.dv_xname));
    709 		/* power on */
    710 		/* LCD power on and display on */
    711 		plum_power_establish(pc, PLUM_PWR_LCD);
    712 		/* back-light on */
    713 		plum_power_establish(pc, PLUM_PWR_BKL);
    714 		plum_conf_write(regt, regh, PLUM_VIDEO_PLLUM_REG,
    715 				PLUM_VIDEO_PLLUM_MAX);
    716 		break;
    717 	case PWR_SUSPEND:
    718 		/* FALLTHROUGH */
    719 	case PWR_STANDBY:
    720 		DPRINTF(("%s: OFF\n", sc->sc_dev.dv_xname));
    721 		/* back-light off */
    722 		plum_conf_write(regt, regh, PLUM_VIDEO_PLLUM_REG,
    723 				PLUM_VIDEO_PLLUM_MIN);
    724 		plum_power_disestablish(pc, PLUM_PWR_BKL);
    725 		/* power down */
    726 		plum_power_disestablish(pc, PLUM_PWR_LCD);
    727 		break;
    728 	}
    729 
    730 	return 0;
    731 }
    732 
    733 #ifdef PLUMVIDEODEBUG
    734 void
    735 plumvideo_dump(struct plumvideo_softc *sc)
    736 {
    737 	bus_space_tag_t regt = sc->sc_regt;
    738 	bus_space_handle_t regh = sc->sc_regh;
    739 
    740 	plumreg_t reg;
    741 	int i;
    742 
    743 	for (i = 0; i < 0x160; i += 4) {
    744 		reg = plum_conf_read(regt, regh, i);
    745 		printf("0x%03x %08x", i, reg);
    746 		bitdisp(reg);
    747 	}
    748 }
    749 #endif /* PLUMVIDEODEBUG */
    750