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[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>
This commit is contained in:
Jon Smirl 2006-04-12 19:43:35 -04:00 committed by Greg Kroah-Hartman
parent 2be4d50295
commit 913e7ec545
1 changed files with 3 additions and 89 deletions
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92
drivers/video/fbsysfs.c
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@ -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),