diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/fbcmap.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | talos-op-linux-f7018c21350204c4cf628462f229d44d03545254.tar.gz talos-op-linux-f7018c21350204c4cf628462f229d44d03545254.zip |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/fbcmap.c')
-rw-r--r-- | drivers/video/fbcmap.c | 362 |
1 files changed, 0 insertions, 362 deletions
diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c deleted file mode 100644 index f89245b8ba8e..000000000000 --- a/drivers/video/fbcmap.c +++ /dev/null @@ -1,362 +0,0 @@ -/* - * 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 - * @flags: flags for kmalloc memory allocation - * - * 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_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags) -{ - int size = len * sizeof(u16); - int ret = -ENOMEM; - - if (cmap->len != len) { - fb_dealloc_cmap(cmap); - if (!len) - return 0; - - cmap->red = kmalloc(size, flags); - if (!cmap->red) - goto fail; - cmap->green = kmalloc(size, flags); - if (!cmap->green) - goto fail; - cmap->blue = kmalloc(size, flags); - if (!cmap->blue) - goto fail; - if (transp) { - cmap->transp = kmalloc(size, flags); - if (!cmap->transp) - goto fail; - } else { - cmap->transp = NULL; - } - } - cmap->start = 0; - cmap->len = len; - ret = fb_copy_cmap(fb_default_cmap(len), cmap); - if (ret) - goto fail; - return 0; - -fail: - fb_dealloc_cmap(cmap); - return ret; -} - -int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp) -{ - return fb_alloc_cmap_gfp(cmap, len, transp, GFP_ATOMIC); -} - -/** - * 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 (size < 0 || size < cmap->len) - return -E2BIG; - - memset(&umap, 0, sizeof(struct fb_cmap)); - rc = fb_alloc_cmap_gfp(&umap, cmap->len, cmap->transp != NULL, - GFP_KERNEL); - 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; - } - - rc = fb_set_cmap(&umap, info); - 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); |