[net-next-2.6.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 <linux/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;

	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))) {
		rc = -EFAULT;
		goto out;
	}
	umap.start = cmap->start;
	if (!lock_fb_info(info)) {
		rc = -ENODEV;
		goto out;
	}
	if (cmap->start < 0 || (!info->fbops->fb_setcolreg &&
				!info->fbops->fb_setcmap)) {
		rc = -EINVAL;
		goto out1;
	}
	rc = fb_set_cmap(&umap, info);
out1:
	unlock_fb_info(info);
out:
	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>
1da177e4 LT	17	#include <linux/slab.h>
84902b7a	18	#include <linux/uaccess.h>
1da177e4	19
adf6b206	20	static u16 red2[] __read_mostly = {
1da177e4 LT	21	0x0000, 0xaaaa
1da177e4 LT	22	};
adf6b206	23	static u16 green2[] __read_mostly = {
1da177e4 LT	24	0x0000, 0xaaaa
1da177e4 LT	25	};
adf6b206	26	static u16 blue2[] __read_mostly = {
1da177e4 LT	27	0x0000, 0xaaaa
	28	};
	29
adf6b206	30	static u16 red4[] __read_mostly = {
1da177e4 LT	31	0x0000, 0xaaaa, 0x5555, 0xffff
1da177e4 LT	32	};
adf6b206	33	static u16 green4[] __read_mostly = {
1da177e4 LT	34	0x0000, 0xaaaa, 0x5555, 0xffff
1da177e4 LT	35	};
adf6b206	36	static u16 blue4[] __read_mostly = {
1da177e4 LT	37	0x0000, 0xaaaa, 0x5555, 0xffff
	38	};
	39
adf6b206	40	static u16 red8[] __read_mostly = {
1da177e4 LT	41	0x0000, 0x0000, 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0xaaaa, 0xaaaa
1da177e4 LT	42	};
adf6b206	43	static u16 green8[] __read_mostly = {
1da177e4 LT	44	0x0000, 0x0000, 0xaaaa, 0xaaaa, 0x0000, 0x0000, 0x5555, 0xaaaa
1da177e4 LT	45	};
adf6b206	46	static u16 blue8[] __read_mostly = {
1da177e4 LT	47	0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa
	48	};
	49
adf6b206	50	static u16 red16[] __read_mostly = {
1da177e4 LT	51	0x0000, 0x0000, 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0xaaaa, 0xaaaa,
	52	0x5555, 0x5555, 0x5555, 0x5555, 0xffff, 0xffff, 0xffff, 0xffff
	53	};
adf6b206	54	static u16 green16[] __read_mostly = {
1da177e4 LT	55	0x0000, 0x0000, 0xaaaa, 0xaaaa, 0x0000, 0x0000, 0x5555, 0xaaaa,
	56	0x5555, 0x5555, 0xffff, 0xffff, 0x5555, 0x5555, 0xffff, 0xffff
	57	};
adf6b206	58	static u16 blue16[] __read_mostly = {
1da177e4 LT	59	0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa,
	60	0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff
	61	};
	62
adf6b206 HD	63	static const struct fb_cmap default_2_colors = {
adf6b206 HD	64	.len=2, .red=red2, .green=green2, .blue=blue2
1da177e4	65	};
adf6b206 HD	66	static const struct fb_cmap default_8_colors = {
adf6b206 HD	67	.len=8, .red=red8, .green=green8, .blue=blue8
1da177e4	68	};
adf6b206 HD	69	static const struct fb_cmap default_4_colors = {
adf6b206 HD	70	.len=4, .red=red4, .green=green4, .blue=blue4
1da177e4	71	};
adf6b206 HD	72	static const struct fb_cmap default_16_colors = {
adf6b206 HD	73	.len=16, .red=red16, .green=green16, .blue=blue16
1da177e4 LT	74	};
	75
	76
adf6b206	77
1da177e4 LT	78	/**
	79	* fb_alloc_cmap - allocate a colormap
	80	* @cmap: frame buffer colormap structure
	81	* @len: length of @cmap
	82	* @transp: boolean, 1 if there is transparency, 0 otherwise
	83	*
	84	* Allocates memory for a colormap @cmap. @len is the
	85	* number of entries in the palette.
	86	*
db77ec27	87	* Returns negative errno on error, or zero on success.
1da177e4 LT	88	*
	89	*/
	90
	91	int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp)
	92	{
	93	int size = len*sizeof(u16);
	94
	95	if (cmap->len != len) {
	96	fb_dealloc_cmap(cmap);
	97	if (!len)
	98	return 0;
	99	if (!(cmap->red = kmalloc(size, GFP_ATOMIC)))
	100	goto fail;
	101	if (!(cmap->green = kmalloc(size, GFP_ATOMIC)))
	102	goto fail;
	103	if (!(cmap->blue = kmalloc(size, GFP_ATOMIC)))
	104	goto fail;
	105	if (transp) {
	106	if (!(cmap->transp = kmalloc(size, GFP_ATOMIC)))
	107	goto fail;
	108	} else
	109	cmap->transp = NULL;
	110	}
	111	cmap->start = 0;
	112	cmap->len = len;
	113	fb_copy_cmap(fb_default_cmap(len), cmap);
	114	return 0;
	115
	116	fail:
	117	fb_dealloc_cmap(cmap);
db77ec27	118	return -ENOMEM;
1da177e4 LT	119	}
	120
	121	/**
	122	* fb_dealloc_cmap - deallocate a colormap
	123	* @cmap: frame buffer colormap structure
	124	*
	125	* Deallocates a colormap that was previously allocated with
	126	* fb_alloc_cmap().
	127	*
	128	*/
	129
	130	void fb_dealloc_cmap(struct fb_cmap *cmap)
	131	{
	132	kfree(cmap->red);
	133	kfree(cmap->green);
	134	kfree(cmap->blue);
	135	kfree(cmap->transp);
	136
	137	cmap->red = cmap->green = cmap->blue = cmap->transp = NULL;
	138	cmap->len = 0;
	139	}
	140
	141	/**
	142	* fb_copy_cmap - copy a colormap
	143	* @from: frame buffer colormap structure
	144	* @to: frame buffer colormap structure
	145	*
	146	* Copy contents of colormap from @from to @to.
	147	*/
	148
adf6b206	149	int fb_copy_cmap(const struct fb_cmap from, struct fb_cmap to)
1da177e4 LT	150	{
	151	int tooff = 0, fromoff = 0;
	152	int size;
	153
	154	if (to->start > from->start)
	155	fromoff = to->start - from->start;
	156	else
	157	tooff = from->start - to->start;
	158	size = to->len - tooff;
	159	if (size > (int) (from->len - fromoff))
	160	size = from->len - fromoff;
	161	if (size <= 0)
	162	return -EINVAL;
	163	size *= sizeof(u16);
	164
	165	memcpy(to->red+tooff, from->red+fromoff, size);
	166	memcpy(to->green+tooff, from->green+fromoff, size);
	167	memcpy(to->blue+tooff, from->blue+fromoff, size);
	168	if (from->transp && to->transp)
	169	memcpy(to->transp+tooff, from->transp+fromoff, size);
	170	return 0;
	171	}
	172
adf6b206	173	int fb_cmap_to_user(const struct fb_cmap from, struct fb_cmap_user to)
1da177e4 LT	174	{
	175	int tooff = 0, fromoff = 0;
	176	int size;
	177
	178	if (to->start > from->start)
	179	fromoff = to->start - from->start;
	180	else
	181	tooff = from->start - to->start;
	182	size = to->len - tooff;
	183	if (size > (int) (from->len - fromoff))
	184	size = from->len - fromoff;
	185	if (size <= 0)
	186	return -EINVAL;
	187	size *= sizeof(u16);
	188
	189	if (copy_to_user(to->red+tooff, from->red+fromoff, size))
	190	return -EFAULT;
	191	if (copy_to_user(to->green+tooff, from->green+fromoff, size))
	192	return -EFAULT;
	193	if (copy_to_user(to->blue+tooff, from->blue+fromoff, size))
	194	return -EFAULT;
	195	if (from->transp && to->transp)
	196	if (copy_to_user(to->transp+tooff, from->transp+fromoff, size))
	197	return -EFAULT;
	198	return 0;
	199	}
	200
	201	/**
	202	* fb_set_cmap - set the colormap
	203	* @cmap: frame buffer colormap structure
	204	* @info: frame buffer info structure
	205	*
	206	* Sets the colormap @cmap for a screen of device @info.
	207	*
	208	* Returns negative errno on error, or zero on success.
	209	*
	210	*/
	211
	212	int fb_set_cmap(struct fb_cmap cmap, struct fb_info info)
	213	{
03e259a9	214	int i, start, rc = 0;
1da177e4 LT	215	u16 red, green, blue, transp;
	216	u_int hred, hgreen, hblue, htransp = 0xffff;
	217
	218	red = cmap->red;
	219	green = cmap->green;
	220	blue = cmap->blue;
	221	transp = cmap->transp;
	222	start = cmap->start;
	223
71494376 BH	224	if (start < 0 \|\| (!info->fbops->fb_setcolreg &&
71494376 BH	225	!info->fbops->fb_setcmap))
1da177e4	226	return -EINVAL;
03e259a9 MJ	227	if (info->fbops->fb_setcmap) {
	228	rc = info->fbops->fb_setcmap(cmap, info);
	229	} else {
	230	for (i = 0; i < cmap->len; i++) {
	231	hred = *red++;
	232	hgreen = *green++;
	233	hblue = *blue++;
	234	if (transp)
	235	htransp = *transp++;
	236	if (info->fbops->fb_setcolreg(start++,
	237	hred, hgreen, hblue,
	238	htransp, info))
	239	break;
	240	}
1da177e4	241	}
03e259a9 MJ	242	if (rc == 0)
	243	fb_copy_cmap(cmap, &info->cmap);
	244
	245	return rc;
1da177e4 LT	246	}
	247
	248	int fb_set_user_cmap(struct fb_cmap_user cmap, struct fb_info info)
	249	{
03e259a9 MJ	250	int rc, size = cmap->len * sizeof(u16);
03e259a9 MJ	251	struct fb_cmap umap;
1da177e4	252
03e259a9 MJ	253	memset(&umap, 0, sizeof(struct fb_cmap));
	254	rc = fb_alloc_cmap(&umap, cmap->len, cmap->transp != NULL);
	255	if (rc)
71494376	256	return rc;
03e259a9 MJ	257	if (copy_from_user(umap.red, cmap->red, size) \|\|
	258	copy_from_user(umap.green, cmap->green, size) \|\|
	259	copy_from_user(umap.blue, cmap->blue, size) \|\|
	260	(cmap->transp && copy_from_user(umap.transp, cmap->transp, size))) {
1f5e31d7 AR	261	rc = -EFAULT;
1f5e31d7 AR	262	goto out;
71494376	263	}
03e259a9	264	umap.start = cmap->start;
1f5e31d7 AR	265	if (!lock_fb_info(info)) {
	266	rc = -ENODEV;
	267	goto out;
	268	}
	269	if (cmap->start < 0 \|\| (!info->fbops->fb_setcolreg &&
	270	!info->fbops->fb_setcmap)) {
	271	rc = -EINVAL;
	272	goto out1;
	273	}
03e259a9	274	rc = fb_set_cmap(&umap, info);
1f5e31d7 AR	275	out1:
	276	unlock_fb_info(info);
	277	out:
03e259a9 MJ	278	fb_dealloc_cmap(&umap);
03e259a9 MJ	279	return rc;
1da177e4 LT	280	}
	281
	282	/**
	283	* fb_default_cmap - get default colormap
	284	* @len: size of palette for a depth
	285	*
	286	* Gets the default colormap for a specific screen depth. @len
	287	* is the size of the palette for a particular screen depth.
	288	*
	289	* Returns pointer to a frame buffer colormap structure.
	290	*
	291	*/
	292
adf6b206	293	const struct fb_cmap *fb_default_cmap(int len)
1da177e4 LT	294	{
	295	if (len <= 2)
	296	return &default_2_colors;
	297	if (len <= 4)
	298	return &default_4_colors;
	299	if (len <= 8)
	300	return &default_8_colors;
	301	return &default_16_colors;
	302	}
	303
	304
	305	/**
	306	* fb_invert_cmaps - invert all defaults colormaps
	307	*
	308	* Invert all default colormaps.
	309	*
	310	*/
	311
	312	void fb_invert_cmaps(void)
	313	{
	314	u_int i;
	315
adf6b206	316	for (i = 0; i < ARRAY_SIZE(red2); i++) {
1da177e4 LT	317	red2[i] = ~red2[i];
	318	green2[i] = ~green2[i];
	319	blue2[i] = ~blue2[i];
	320	}
adf6b206	321	for (i = 0; i < ARRAY_SIZE(red4); i++) {
1da177e4 LT	322	red4[i] = ~red4[i];
	323	green4[i] = ~green4[i];
	324	blue4[i] = ~blue4[i];
	325	}
adf6b206	326	for (i = 0; i < ARRAY_SIZE(red8); i++) {
1da177e4 LT	327	red8[i] = ~red8[i];
	328	green8[i] = ~green8[i];
	329	blue8[i] = ~blue8[i];
	330	}
adf6b206	331	for (i = 0; i < ARRAY_SIZE(red16); i++) {
1da177e4 LT	332	red16[i] = ~red16[i];
	333	green16[i] = ~green16[i];
	334	blue16[i] = ~blue16[i];
	335	}
	336	}
	337
	338
	339	/*
	340	* Visible symbols for modules
	341	*/
	342
	343	EXPORT_SYMBOL(fb_alloc_cmap);
	344	EXPORT_SYMBOL(fb_dealloc_cmap);
	345	EXPORT_SYMBOL(fb_copy_cmap);
	346	EXPORT_SYMBOL(fb_set_cmap);
	347	EXPORT_SYMBOL(fb_default_cmap);
	348	EXPORT_SYMBOL(fb_invert_cmaps);