* for more details.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/compat.h>
#ifdef CONFIG_KMOD
#include <linux/kmod.h>
#endif
-#include <linux/devfs_fs_kernel.h>
#include <linux/err.h>
-#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/efi.h>
}
#ifdef CONFIG_LOGO
-#include <linux/linux_logo.h>
static inline unsigned safe_shift(unsigned d, int n)
{
static void fb_rotate_logo_cw(const u8 *in, u8 *out, u32 width, u32 height)
{
- int i, j, w = width - 1;
+ int i, j, h = height - 1;
for (i = 0; i < height; i++)
for (j = 0; j < width; j++)
- out[height * j + w - i] = *in++;
+ out[height * j + h - i] = *in++;
}
static void fb_rotate_logo_ccw(const u8 *in, u8 *out, u32 width, u32 height)
u32 tmp;
if (rotate == FB_ROTATE_UD) {
- image->dx = info->var.xres - image->width;
- image->dy = info->var.yres - image->height;
fb_rotate_logo_ud(image->data, dst, image->width,
image->height);
+ image->dx = info->var.xres - image->width;
+ image->dy = info->var.yres - image->height;
} else if (rotate == FB_ROTATE_CW) {
- tmp = image->width;
- image->width = image->height;
- image->height = tmp;
- image->dx = info->var.xres - image->height;
fb_rotate_logo_cw(image->data, dst, image->width,
image->height);
- } else if (rotate == FB_ROTATE_CCW) {
tmp = image->width;
image->width = image->height;
image->height = tmp;
- image->dy = info->var.yres - image->width;
+ image->dx = info->var.xres - image->width;
+ } else if (rotate == FB_ROTATE_CCW) {
fb_rotate_logo_ccw(image->data, dst, image->width,
image->height);
+ tmp = image->width;
+ image->width = image->height;
+ image->height = tmp;
+ image->dy = info->var.yres - image->height;
}
image->data = dst;
depth = info->var.green.length;
}
+ if (info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR && depth > 4) {
+ /* assume console colormap */
+ depth = 4;
+ }
+
if (depth >= 8) {
switch (info->fix.visual) {
case FB_VISUAL_TRUECOLOR:
total_size = info->fix.smem_len;
if (p > total_size)
- return 0;
+ return -EFBIG;
- if (count >= total_size)
+ if (count > total_size) {
+ err = -EFBIG;
count = total_size;
+ }
+
+ if (count + p > total_size) {
+ if (!err)
+ err = -ENOSPC;
- if (count + p > total_size)
count = total_size - p;
+ }
buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count,
GFP_KERNEL);
kfree(buffer);
- return (err) ? err : cnt;
+ return (cnt) ? cnt : err;
}
#ifdef CONFIG_KMOD
#endif
};
-static struct class *fb_class;
-
+struct class *fb_class;
+EXPORT_SYMBOL(fb_class);
/**
* register_framebuffer - registers a frame buffer device
* @fb_info: frame buffer info structure
fb_add_videomode(&mode, &fb_info->modelist);
registered_fb[i] = fb_info;
- devfs_mk_cdev(MKDEV(FB_MAJOR, i),
- S_IFCHR | S_IRUGO | S_IWUGO, "fb/%d", i);
event.info = fb_info;
blocking_notifier_call_chain(&fb_notifier_list,
FB_EVENT_FB_REGISTERED, &event);
int
unregister_framebuffer(struct fb_info *fb_info)
{
+ struct fb_event event;
int i;
i = fb_info->node;
if (!registered_fb[i])
return -EINVAL;
- devfs_remove("fb/%d", i);
- if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
+ if (fb_info->pixmap.addr &&
+ (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
kfree(fb_info->pixmap.addr);
fb_destroy_modelist(&fb_info->modelist);
registered_fb[i]=NULL;
num_registered_fb--;
fb_cleanup_class_device(fb_info);
class_device_destroy(fb_class, MKDEV(FB_MAJOR, i));
+ event.info = fb_info;
+ blocking_notifier_call_chain(&fb_notifier_list,
+ FB_EVENT_FB_UNREGISTERED, &event);
return 0;
}
{
create_proc_read_entry("fb", 0, NULL, fbmem_read_proc, NULL);
- devfs_mk_dir("fb");
if (register_chrdev(FB_MAJOR,"fb",&fb_fops))
printk("unable to get major %d for fb devs\n", FB_MAJOR);
return err;
}
-/**
- * fb_con_duit - user<->fbcon passthrough
- * @info: struct fb_info
- * @event: notification event to be passed to fbcon
- * @data: private data
- *
- * DESCRIPTION
- * This function is an fbcon-user event passing channel
- * which bypasses fbdev. This is hopefully temporary
- * until a user interface for fbcon is created
- */
-int fb_con_duit(struct fb_info *info, int event, void *data)
-{
- struct fb_event evnt;
-
- evnt.info = info;
- evnt.data = data;
-
- return blocking_notifier_call_chain(&fb_notifier_list, event, &evnt);
-}
-EXPORT_SYMBOL(fb_con_duit);
-
static char *video_options[FB_MAX];
static int ofonly;
EXPORT_SYMBOL(fb_register_client);
EXPORT_SYMBOL(fb_unregister_client);
EXPORT_SYMBOL(fb_get_options);
-EXPORT_SYMBOL(fb_new_modelist);
MODULE_LICENSE("GPL");