[deliverable/linux.git] / drivers / video / fbcmap.c

/*
 *  linux/drivers/video/fbcmap.c -- Colormap handling for frame buffer devices
 *
 *	Created 15 Jun 1997 by Geert Uytterhoeven
 *
 *	2001 - Documented with DocBook
 *	- Brad Douglas <brad@neruo.com>
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License.  See the file COPYING in the main directory of this archive for
 *  more details.
 */

#include <linux/string.h>
#include <linux/module.h>
#include <linux/fb.h>
#include <linux/slab.h>

#include <asm/uaccess.h>

static u16 red2[] __read_mostly = {
    0x0000, 0xaaaa
};
static u16 green2[] __read_mostly = {
    0x0000, 0xaaaa
};
static u16 blue2[] __read_mostly = {
    0x0000, 0xaaaa
};

static u16 red4[] __read_mostly = {
    0x0000, 0xaaaa, 0x5555, 0xffff
};
static u16 green4[] __read_mostly = {
    0x0000, 0xaaaa, 0x5555, 0xffff
};
static u16 blue4[] __read_mostly = {
    0x0000, 0xaaaa, 0x5555, 0xffff
};

static u16 red8[] __read_mostly = {
    0x0000, 0x0000, 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0xaaaa, 0xaaaa
};
static u16 green8[] __read_mostly = {
    0x0000, 0x0000, 0xaaaa, 0xaaaa, 0x0000, 0x0000, 0x5555, 0xaaaa
};
static u16 blue8[] __read_mostly = {
    0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa
};

static u16 red16[] __read_mostly = {
    0x0000, 0x0000, 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0xaaaa, 0xaaaa,
    0x5555, 0x5555, 0x5555, 0x5555, 0xffff, 0xffff, 0xffff, 0xffff
};
static u16 green16[] __read_mostly = {
    0x0000, 0x0000, 0xaaaa, 0xaaaa, 0x0000, 0x0000, 0x5555, 0xaaaa,
    0x5555, 0x5555, 0xffff, 0xffff, 0x5555, 0x5555, 0xffff, 0xffff
};
static u16 blue16[] __read_mostly = {
    0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa,
    0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff
};

static const struct fb_cmap default_2_colors = {
    .len=2, .red=red2, .green=green2, .blue=blue2
};
static const struct fb_cmap default_8_colors = {
    .len=8, .red=red8, .green=green8, .blue=blue8
};
static const struct fb_cmap default_4_colors = {
    .len=4, .red=red4, .green=green4, .blue=blue4
};
static const struct fb_cmap default_16_colors = {
    .len=16, .red=red16, .green=green16, .blue=blue16
};


/**
 *	fb_alloc_cmap - allocate a colormap
 *	@cmap: frame buffer colormap structure
 *	@len: length of @cmap
 *	@transp: boolean, 1 if there is transparency, 0 otherwise
 *
 *	Allocates memory for a colormap @cmap.  @len is the
 *	number of entries in the palette.
 *
 *	Returns negative errno on error, or zero on success.
 *
 */

int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp)
{
    int size = len*sizeof(u16);

    if (cmap->len != len) {
	fb_dealloc_cmap(cmap);
	if (!len)
	    return 0;
	if (!(cmap->red = kmalloc(size, GFP_ATOMIC)))
	    goto fail;
	if (!(cmap->green = kmalloc(size, GFP_ATOMIC)))
	    goto fail;
	if (!(cmap->blue = kmalloc(size, GFP_ATOMIC)))
	    goto fail;
	if (transp) {
	    if (!(cmap->transp = kmalloc(size, GFP_ATOMIC)))
		goto fail;
	} else
	    cmap->transp = NULL;
    }
    cmap->start = 0;
    cmap->len = len;
    fb_copy_cmap(fb_default_cmap(len), cmap);
    return 0;

fail:
    fb_dealloc_cmap(cmap);
    return -ENOMEM;
}

/**
 *      fb_dealloc_cmap - deallocate a colormap
 *      @cmap: frame buffer colormap structure
 *
 *      Deallocates a colormap that was previously allocated with
 *      fb_alloc_cmap().
 *
 */

void fb_dealloc_cmap(struct fb_cmap *cmap)
{
	kfree(cmap->red);
	kfree(cmap->green);
	kfree(cmap->blue);
	kfree(cmap->transp);

	cmap->red = cmap->green = cmap->blue = cmap->transp = NULL;
	cmap->len = 0;
}

/**
 *	fb_copy_cmap - copy a colormap
 *	@from: frame buffer colormap structure
 *	@to: frame buffer colormap structure
 *
 *	Copy contents of colormap from @from to @to.
 */

int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to)
{
	int tooff = 0, fromoff = 0;
	int size;

	if (to->start > from->start)
		fromoff = to->start - from->start;
	else
		tooff = from->start - to->start;
	size = to->len - tooff;
	if (size > (int) (from->len - fromoff))
		size = from->len - fromoff;
	if (size <= 0)
		return -EINVAL;
	size *= sizeof(u16);

	memcpy(to->red+tooff, from->red+fromoff, size);
	memcpy(to->green+tooff, from->green+fromoff, size);
	memcpy(to->blue+tooff, from->blue+fromoff, size);
	if (from->transp && to->transp)
		memcpy(to->transp+tooff, from->transp+fromoff, size);
	return 0;
}

int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to)
{
	int tooff = 0, fromoff = 0;
	int size;

	if (to->start > from->start)
		fromoff = to->start - from->start;
	else
		tooff = from->start - to->start;
	size = to->len - tooff;
	if (size > (int) (from->len - fromoff))
		size = from->len - fromoff;
	if (size <= 0)
		return -EINVAL;
	size *= sizeof(u16);

	if (copy_to_user(to->red+tooff, from->red+fromoff, size))
		return -EFAULT;
	if (copy_to_user(to->green+tooff, from->green+fromoff, size))
		return -EFAULT;
	if (copy_to_user(to->blue+tooff, from->blue+fromoff, size))
		return -EFAULT;
	if (from->transp && to->transp)
		if (copy_to_user(to->transp+tooff, from->transp+fromoff, size))
			return -EFAULT;
	return 0;
}

/**
 *	fb_set_cmap - set the colormap
 *	@cmap: frame buffer colormap structure
 *	@info: frame buffer info structure
 *
 *	Sets the colormap @cmap for a screen of device @info.
 *
 *	Returns negative errno on error, or zero on success.
 *
 */

int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *info)
{
	int i, start, rc = 0;
	u16 *red, *green, *blue, *transp;
	u_int hred, hgreen, hblue, htransp = 0xffff;

	red = cmap->red;
	green = cmap->green;
	blue = cmap->blue;
	transp = cmap->transp;
	start = cmap->start;

	if (start < 0 || (!info->fbops->fb_setcolreg &&
			  !info->fbops->fb_setcmap))
		return -EINVAL;
	if (info->fbops->fb_setcmap) {
		rc = info->fbops->fb_setcmap(cmap, info);
	} else {
		for (i = 0; i < cmap->len; i++) {
			hred = *red++;
			hgreen = *green++;
			hblue = *blue++;
			if (transp)
				htransp = *transp++;
			if (info->fbops->fb_setcolreg(start++,
						      hred, hgreen, hblue,
						      htransp, info))
				break;
		}
	}
	if (rc == 0)
		fb_copy_cmap(cmap, &info->cmap);

	return rc;
}

int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info)
{
	int rc, size = cmap->len * sizeof(u16);
	struct fb_cmap umap;

	if (cmap->start < 0 || (!info->fbops->fb_setcolreg &&
			        !info->fbops->fb_setcmap))
		return -EINVAL;

	memset(&umap, 0, sizeof(struct fb_cmap));
	rc = fb_alloc_cmap(&umap, cmap->len, cmap->transp != NULL);
	if (rc)
		return rc;
	if (copy_from_user(umap.red, cmap->red, size) ||
	    copy_from_user(umap.green, cmap->green, size) ||
	    copy_from_user(umap.blue, cmap->blue, size) ||
	    (cmap->transp && copy_from_user(umap.transp, cmap->transp, size))) {
		fb_dealloc_cmap(&umap);
		return -EFAULT;
	}
	umap.start = cmap->start;
	rc = fb_set_cmap(&umap, info);
	fb_dealloc_cmap(&umap);
	return rc;
}

/**
 *	fb_default_cmap - get default colormap
 *	@len: size of palette for a depth
 *
 *	Gets the default colormap for a specific screen depth.  @len
 *	is the size of the palette for a particular screen depth.
 *
 *	Returns pointer to a frame buffer colormap structure.
 *
 */

const struct fb_cmap *fb_default_cmap(int len)
{
    if (len <= 2)
	return &default_2_colors;
    if (len <= 4)
	return &default_4_colors;
    if (len <= 8)
	return &default_8_colors;
    return &default_16_colors;
}


/**
 *	fb_invert_cmaps - invert all defaults colormaps
 *
 *	Invert all default colormaps.
 *
 */

void fb_invert_cmaps(void)
{
    u_int i;

    for (i = 0; i < ARRAY_SIZE(red2); i++) {
	red2[i] = ~red2[i];
	green2[i] = ~green2[i];
	blue2[i] = ~blue2[i];
    }
    for (i = 0; i < ARRAY_SIZE(red4); i++) {
	red4[i] = ~red4[i];
	green4[i] = ~green4[i];
	blue4[i] = ~blue4[i];
    }
    for (i = 0; i < ARRAY_SIZE(red8); i++) {
	red8[i] = ~red8[i];
	green8[i] = ~green8[i];
	blue8[i] = ~blue8[i];
    }
    for (i = 0; i < ARRAY_SIZE(red16); i++) {
	red16[i] = ~red16[i];
	green16[i] = ~green16[i];
	blue16[i] = ~blue16[i];
    }
}


    /*
     *  Visible symbols for modules
     */

EXPORT_SYMBOL(fb_alloc_cmap);
EXPORT_SYMBOL(fb_dealloc_cmap);
EXPORT_SYMBOL(fb_copy_cmap);
EXPORT_SYMBOL(fb_set_cmap);
EXPORT_SYMBOL(fb_default_cmap);
EXPORT_SYMBOL(fb_invert_cmaps);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/drivers/video/fbcmap.c -- Colormap handling for frame buffer devices
	3	*
	4	* Created 15 Jun 1997 by Geert Uytterhoeven
	5	*
	6	* 2001 - Documented with DocBook
	7	* - Brad Douglas <brad@neruo.com>
	8	*
	9	* This file is subject to the terms and conditions of the GNU General Public
	10	* License. See the file COPYING in the main directory of this archive for
	11	* more details.
	12	*/
	13
	14	#include <linux/string.h>
	15	#include <linux/module.h>
1da177e4 LT	16	#include <linux/fb.h>
	17	#include <linux/slab.h>
	18
	19	#include <asm/uaccess.h>
	20
adf6b206	21	static u16 red2[] __read_mostly = {
1da177e4 LT	22	0x0000, 0xaaaa
1da177e4 LT	23	};
adf6b206	24	static u16 green2[] __read_mostly = {
1da177e4 LT	25	0x0000, 0xaaaa
1da177e4 LT	26	};
adf6b206	27	static u16 blue2[] __read_mostly = {
1da177e4 LT	28	0x0000, 0xaaaa
	29	};
	30
adf6b206	31	static u16 red4[] __read_mostly = {
1da177e4 LT	32	0x0000, 0xaaaa, 0x5555, 0xffff
1da177e4 LT	33	};
adf6b206	34	static u16 green4[] __read_mostly = {
1da177e4 LT	35	0x0000, 0xaaaa, 0x5555, 0xffff
1da177e4 LT	36	};
adf6b206	37	static u16 blue4[] __read_mostly = {
1da177e4 LT	38	0x0000, 0xaaaa, 0x5555, 0xffff
	39	};
	40
adf6b206	41	static u16 red8[] __read_mostly = {
1da177e4 LT	42	0x0000, 0x0000, 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0xaaaa, 0xaaaa
1da177e4 LT	43	};
adf6b206	44	static u16 green8[] __read_mostly = {
1da177e4 LT	45	0x0000, 0x0000, 0xaaaa, 0xaaaa, 0x0000, 0x0000, 0x5555, 0xaaaa
1da177e4 LT	46	};
adf6b206	47	static u16 blue8[] __read_mostly = {
1da177e4 LT	48	0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa
	49	};
	50
adf6b206	51	static u16 red16[] __read_mostly = {
1da177e4 LT	52	0x0000, 0x0000, 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0xaaaa, 0xaaaa,
	53	0x5555, 0x5555, 0x5555, 0x5555, 0xffff, 0xffff, 0xffff, 0xffff
	54	};
adf6b206	55	static u16 green16[] __read_mostly = {
1da177e4 LT	56	0x0000, 0x0000, 0xaaaa, 0xaaaa, 0x0000, 0x0000, 0x5555, 0xaaaa,
	57	0x5555, 0x5555, 0xffff, 0xffff, 0x5555, 0x5555, 0xffff, 0xffff
	58	};
adf6b206	59	static u16 blue16[] __read_mostly = {
1da177e4 LT	60	0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa,
	61	0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff
	62	};
	63
adf6b206 HD	64	static const struct fb_cmap default_2_colors = {
adf6b206 HD	65	.len=2, .red=red2, .green=green2, .blue=blue2
1da177e4	66	};
adf6b206 HD	67	static const struct fb_cmap default_8_colors = {
adf6b206 HD	68	.len=8, .red=red8, .green=green8, .blue=blue8
1da177e4	69	};
adf6b206 HD	70	static const struct fb_cmap default_4_colors = {
adf6b206 HD	71	.len=4, .red=red4, .green=green4, .blue=blue4
1da177e4	72	};
adf6b206 HD	73	static const struct fb_cmap default_16_colors = {
adf6b206 HD	74	.len=16, .red=red16, .green=green16, .blue=blue16
1da177e4 LT	75	};
	76
	77
adf6b206	78
1da177e4 LT	79	/**
	80	* fb_alloc_cmap - allocate a colormap
	81	* @cmap: frame buffer colormap structure
	82	* @len: length of @cmap
	83	* @transp: boolean, 1 if there is transparency, 0 otherwise
	84	*
	85	* Allocates memory for a colormap @cmap. @len is the
	86	* number of entries in the palette.
	87	*
db77ec27	88	* Returns negative errno on error, or zero on success.
1da177e4 LT	89	*
	90	*/
	91
	92	int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp)
	93	{
	94	int size = len*sizeof(u16);
	95
	96	if (cmap->len != len) {
	97	fb_dealloc_cmap(cmap);
	98	if (!len)
	99	return 0;
	100	if (!(cmap->red = kmalloc(size, GFP_ATOMIC)))
	101	goto fail;
	102	if (!(cmap->green = kmalloc(size, GFP_ATOMIC)))
	103	goto fail;
	104	if (!(cmap->blue = kmalloc(size, GFP_ATOMIC)))
	105	goto fail;
	106	if (transp) {
	107	if (!(cmap->transp = kmalloc(size, GFP_ATOMIC)))
	108	goto fail;
	109	} else
	110	cmap->transp = NULL;
	111	}
	112	cmap->start = 0;
	113	cmap->len = len;
	114	fb_copy_cmap(fb_default_cmap(len), cmap);
	115	return 0;
	116
	117	fail:
	118	fb_dealloc_cmap(cmap);
db77ec27	119	return -ENOMEM;
1da177e4 LT	120	}
	121
	122	/**
	123	* fb_dealloc_cmap - deallocate a colormap
	124	* @cmap: frame buffer colormap structure
	125	*
	126	* Deallocates a colormap that was previously allocated with
	127	* fb_alloc_cmap().
	128	*
	129	*/
	130
	131	void fb_dealloc_cmap(struct fb_cmap *cmap)
	132	{
	133	kfree(cmap->red);
	134	kfree(cmap->green);
	135	kfree(cmap->blue);
	136	kfree(cmap->transp);
	137
	138	cmap->red = cmap->green = cmap->blue = cmap->transp = NULL;
	139	cmap->len = 0;
	140	}
	141
	142	/**
	143	* fb_copy_cmap - copy a colormap
	144	* @from: frame buffer colormap structure
	145	* @to: frame buffer colormap structure
	146	*
	147	* Copy contents of colormap from @from to @to.
	148	*/
	149
adf6b206	150	int fb_copy_cmap(const struct fb_cmap from, struct fb_cmap to)
1da177e4 LT	151	{
	152	int tooff = 0, fromoff = 0;
	153	int size;
	154
	155	if (to->start > from->start)
	156	fromoff = to->start - from->start;
	157	else
	158	tooff = from->start - to->start;
	159	size = to->len - tooff;
	160	if (size > (int) (from->len - fromoff))
	161	size = from->len - fromoff;
	162	if (size <= 0)
	163	return -EINVAL;
	164	size *= sizeof(u16);
	165
	166	memcpy(to->red+tooff, from->red+fromoff, size);
	167	memcpy(to->green+tooff, from->green+fromoff, size);
	168	memcpy(to->blue+tooff, from->blue+fromoff, size);
	169	if (from->transp && to->transp)
	170	memcpy(to->transp+tooff, from->transp+fromoff, size);
	171	return 0;
	172	}
	173
adf6b206	174	int fb_cmap_to_user(const struct fb_cmap from, struct fb_cmap_user to)
1da177e4 LT	175	{
	176	int tooff = 0, fromoff = 0;
	177	int size;
	178
	179	if (to->start > from->start)
	180	fromoff = to->start - from->start;
	181	else
	182	tooff = from->start - to->start;
	183	size = to->len - tooff;
	184	if (size > (int) (from->len - fromoff))
	185	size = from->len - fromoff;
	186	if (size <= 0)
	187	return -EINVAL;
	188	size *= sizeof(u16);
	189
	190	if (copy_to_user(to->red+tooff, from->red+fromoff, size))
	191	return -EFAULT;
	192	if (copy_to_user(to->green+tooff, from->green+fromoff, size))
	193	return -EFAULT;
	194	if (copy_to_user(to->blue+tooff, from->blue+fromoff, size))
	195	return -EFAULT;
	196	if (from->transp && to->transp)
	197	if (copy_to_user(to->transp+tooff, from->transp+fromoff, size))
	198	return -EFAULT;
	199	return 0;
	200	}
	201
	202	/**
	203	* fb_set_cmap - set the colormap
	204	* @cmap: frame buffer colormap structure
	205	* @info: frame buffer info structure
	206	*
	207	* Sets the colormap @cmap for a screen of device @info.
	208	*
	209	* Returns negative errno on error, or zero on success.
	210	*
	211	*/
	212
	213	int fb_set_cmap(struct fb_cmap cmap, struct fb_info info)
	214	{
03e259a9	215	int i, start, rc = 0;
1da177e4 LT	216	u16 red, green, blue, transp;
	217	u_int hred, hgreen, hblue, htransp = 0xffff;
	218
	219	red = cmap->red;
	220	green = cmap->green;
	221	blue = cmap->blue;
	222	transp = cmap->transp;
	223	start = cmap->start;
	224
71494376 BH	225	if (start < 0 \|\| (!info->fbops->fb_setcolreg &&
71494376 BH	226	!info->fbops->fb_setcmap))
1da177e4	227	return -EINVAL;
03e259a9 MJ	228	if (info->fbops->fb_setcmap) {
	229	rc = info->fbops->fb_setcmap(cmap, info);
	230	} else {
	231	for (i = 0; i < cmap->len; i++) {
	232	hred = *red++;
	233	hgreen = *green++;
	234	hblue = *blue++;
	235	if (transp)
	236	htransp = *transp++;
	237	if (info->fbops->fb_setcolreg(start++,
	238	hred, hgreen, hblue,
	239	htransp, info))
	240	break;
	241	}
1da177e4	242	}
03e259a9 MJ	243	if (rc == 0)
	244	fb_copy_cmap(cmap, &info->cmap);
	245
	246	return rc;
1da177e4 LT	247	}
	248
	249	int fb_set_user_cmap(struct fb_cmap_user cmap, struct fb_info info)
	250	{
03e259a9 MJ	251	int rc, size = cmap->len * sizeof(u16);
03e259a9 MJ	252	struct fb_cmap umap;
1da177e4	253
03e259a9 MJ	254	if (cmap->start < 0 \|\| (!info->fbops->fb_setcolreg &&
03e259a9 MJ	255	!info->fbops->fb_setcmap))
1da177e4	256	return -EINVAL;
71494376	257
03e259a9 MJ	258	memset(&umap, 0, sizeof(struct fb_cmap));
	259	rc = fb_alloc_cmap(&umap, cmap->len, cmap->transp != NULL);
	260	if (rc)
71494376	261	return rc;
03e259a9 MJ	262	if (copy_from_user(umap.red, cmap->red, size) \|\|
	263	copy_from_user(umap.green, cmap->green, size) \|\|
	264	copy_from_user(umap.blue, cmap->blue, size) \|\|
	265	(cmap->transp && copy_from_user(umap.transp, cmap->transp, size))) {
	266	fb_dealloc_cmap(&umap);
	267	return -EFAULT;
71494376	268	}
03e259a9 MJ	269	umap.start = cmap->start;
	270	rc = fb_set_cmap(&umap, info);
	271	fb_dealloc_cmap(&umap);
	272	return rc;
1da177e4 LT	273	}
	274
	275	/**
	276	* fb_default_cmap - get default colormap
	277	* @len: size of palette for a depth
	278	*
	279	* Gets the default colormap for a specific screen depth. @len
	280	* is the size of the palette for a particular screen depth.
	281	*
	282	* Returns pointer to a frame buffer colormap structure.
	283	*
	284	*/
	285
adf6b206	286	const struct fb_cmap *fb_default_cmap(int len)
1da177e4 LT	287	{
	288	if (len <= 2)
	289	return &default_2_colors;
	290	if (len <= 4)
	291	return &default_4_colors;
	292	if (len <= 8)
	293	return &default_8_colors;
	294	return &default_16_colors;
	295	}
	296
	297
	298	/**
	299	* fb_invert_cmaps - invert all defaults colormaps
	300	*
	301	* Invert all default colormaps.
	302	*
	303	*/
	304
	305	void fb_invert_cmaps(void)
	306	{
	307	u_int i;
	308
adf6b206	309	for (i = 0; i < ARRAY_SIZE(red2); i++) {
1da177e4 LT	310	red2[i] = ~red2[i];
	311	green2[i] = ~green2[i];
	312	blue2[i] = ~blue2[i];
	313	}
adf6b206	314	for (i = 0; i < ARRAY_SIZE(red4); i++) {
1da177e4 LT	315	red4[i] = ~red4[i];
	316	green4[i] = ~green4[i];
	317	blue4[i] = ~blue4[i];
	318	}
adf6b206	319	for (i = 0; i < ARRAY_SIZE(red8); i++) {
1da177e4 LT	320	red8[i] = ~red8[i];
	321	green8[i] = ~green8[i];
	322	blue8[i] = ~blue8[i];
	323	}
adf6b206	324	for (i = 0; i < ARRAY_SIZE(red16); i++) {
1da177e4 LT	325	red16[i] = ~red16[i];
	326	green16[i] = ~green16[i];
	327	blue16[i] = ~blue16[i];
	328	}
	329	}
	330
	331
	332	/*
	333	* Visible symbols for modules
	334	*/
	335
	336	EXPORT_SYMBOL(fb_alloc_cmap);
	337	EXPORT_SYMBOL(fb_dealloc_cmap);
	338	EXPORT_SYMBOL(fb_copy_cmap);
	339	EXPORT_SYMBOL(fb_set_cmap);
	340	EXPORT_SYMBOL(fb_default_cmap);
	341	EXPORT_SYMBOL(fb_invert_cmaps);