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authorJon Smirl <jonsmirl@gmail.com>2006-04-12 19:43:35 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-04-27 13:08:56 -0700
commit913e7ec545462b9a49fa308d0c81697236f7d29d (patch)
treea2cacb4c2536ce09f4c43032dabd54042e886bfc /drivers/video
parent2be4d50295e2b6f62c07b614e1b103e280dddb84 (diff)
[PATCH] Frame buffer: remove cmap sysfs interface
Remove it as it does not work properly due to sysfs core changes. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbsysfs.c92
1 files changed, 3 insertions, 89 deletions
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index b72b05250a9..34e07399756 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -305,94 +305,6 @@ static ssize_t show_stride(struct class_device *class_device, char *buf)
return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->fix.line_length);
}
-/* Format for cmap is "%02x%c%4x%4x%4x\n" */
-/* %02x entry %c transp %4x red %4x blue %4x green \n */
-/* 256 rows at 16 chars equals 4096, the normal page size */
-/* the code will automatically adjust for different page sizes */
-static ssize_t store_cmap(struct class_device *class_device, const char *buf,
- size_t count)
-{
- struct fb_info *fb_info = class_get_devdata(class_device);
- int rc, i, start, length, transp = 0;
-
- if ((count > PAGE_SIZE) || ((count % 16) != 0))
- return -EINVAL;
-
- if (!fb_info->fbops->fb_setcolreg && !fb_info->fbops->fb_setcmap)
- return -EINVAL;
-
- sscanf(buf, "%02x", &start);
- length = count / 16;
-
- for (i = 0; i < length; i++)
- if (buf[i * 16 + 2] != ' ')
- transp = 1;
-
- /* If we can batch, do it */
- if (fb_info->fbops->fb_setcmap && length > 1) {
- struct fb_cmap umap;
-
- memset(&umap, 0, sizeof(umap));
- if ((rc = fb_alloc_cmap(&umap, length, transp)))
- return rc;
-
- umap.start = start;
- for (i = 0; i < length; i++) {
- sscanf(&buf[i * 16 + 3], "%4hx", &umap.red[i]);
- sscanf(&buf[i * 16 + 7], "%4hx", &umap.blue[i]);
- sscanf(&buf[i * 16 + 11], "%4hx", &umap.green[i]);
- if (transp)
- umap.transp[i] = (buf[i * 16 + 2] != ' ');
- }
- rc = fb_info->fbops->fb_setcmap(&umap, fb_info);
- fb_copy_cmap(&umap, &fb_info->cmap);
- fb_dealloc_cmap(&umap);
-
- return rc ?: count;
- }
- for (i = 0; i < length; i++) {
- u16 red, blue, green, tsp;
-
- sscanf(&buf[i * 16 + 3], "%4hx", &red);
- sscanf(&buf[i * 16 + 7], "%4hx", &blue);
- sscanf(&buf[i * 16 + 11], "%4hx", &green);
- tsp = (buf[i * 16 + 2] != ' ');
- if ((rc = fb_info->fbops->fb_setcolreg(start++,
- red, green, blue, tsp, fb_info)))
- return rc;
-
- fb_info->cmap.red[i] = red;
- fb_info->cmap.blue[i] = blue;
- fb_info->cmap.green[i] = green;
- if (transp)
- fb_info->cmap.transp[i] = tsp;
- }
- return count;
-}
-
-static ssize_t show_cmap(struct class_device *class_device, char *buf)
-{
- struct fb_info *fb_info = class_get_devdata(class_device);
- unsigned int i;
-
- if (!fb_info->cmap.red || !fb_info->cmap.blue ||
- !fb_info->cmap.green)
- return -EINVAL;
-
- if (fb_info->cmap.len > PAGE_SIZE / 16)
- return -EINVAL;
-
- /* don't mess with the format, the buffer is PAGE_SIZE */
- /* 256 entries at 16 chars per line equals 4096 = PAGE_SIZE */
- for (i = 0; i < fb_info->cmap.len; i++) {
- snprintf(&buf[ i * 16], PAGE_SIZE - i * 16, "%02x%c%4x%4x%4x\n", i + fb_info->cmap.start,
- ((fb_info->cmap.transp && fb_info->cmap.transp[i]) ? '*' : ' '),
- fb_info->cmap.red[i], fb_info->cmap.blue[i],
- fb_info->cmap.green[i]);
- }
- return 16 * fb_info->cmap.len;
-}
-
static ssize_t store_blank(struct class_device *class_device, const char * buf,
size_t count)
{
@@ -502,10 +414,12 @@ static ssize_t show_fbstate(struct class_device *class_device, char *buf)
return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->state);
}
+/* When cmap is added back in it should be a binary attribute
+ * not a text one. Consideration should also be given to converting
+ * fbdev to use configfs instead of sysfs */
static struct class_device_attribute class_device_attrs[] = {
__ATTR(bits_per_pixel, S_IRUGO|S_IWUSR, show_bpp, store_bpp),
__ATTR(blank, S_IRUGO|S_IWUSR, show_blank, store_blank),
- __ATTR(color_map, S_IRUGO|S_IWUSR, show_cmap, store_cmap),
__ATTR(console, S_IRUGO|S_IWUSR, show_console, store_console),
__ATTR(cursor, S_IRUGO|S_IWUSR, show_cursor, store_cursor),
__ATTR(mode, S_IRUGO|S_IWUSR, show_mode, store_mode),