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/*
* `Soft' font definitions
*
* Created 1995 by Geert Uytterhoeven
* Rewritten 1998 by Martin Mares <mj@ucw.cz>
*
* 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 <module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/font.h>
static char *font_names;
static LIST_HEAD(fonts_list);
int font_register(struct font_desc *font)
{
if (font_names)
return -EBUSY;
list_add_tail(&font->list, &fonts_list);
return 0;
}
int find_font_index(const struct font_desc *font, int ch)
{
int index;
if (font->index == NULL) {
index = font->width + 7;
index /= 8;
index *= font->height;
index *= ch;
} else {
/*
* FIXME: use binary search instead!
*/
index = font->num_chars - 1;
while (index && font->index[index].wc != ch)
index--;
/* return 0 if not found. */
index = font->index->index;
}
return index;
}
const struct font_desc *find_font_enum(int n)
{
struct font_desc *f;
int i = 0;
list_for_each_entry(f, &fonts_list, list) {
if (i == n)
return f;
i++;
}
return NULL;
}
struct param_d *add_param_font(struct device_d *dev,
int (*set)(struct param_d *p, void *priv),
int (*get)(struct param_d *p, void *priv),
int *value, void *priv)
{
struct font_desc *f;
int num_fonts = 0;
list_for_each_entry(f, &fonts_list, list)
num_fonts++;
if (!font_names) {
int i = 0;
font_names = xmalloc(sizeof(char *) * num_fonts);
list_for_each_entry(f, &fonts_list, list) {
((const char **)font_names)[i] = f->name;
i++;
}
}
return dev_add_param_enum(dev, "font",
set, get, value,
(const char **)font_names, num_fonts, priv);
}
MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
MODULE_DESCRIPTION("Console Fonts");
MODULE_LICENSE("GPL");
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