102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
/*
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* `Soft' font definitions
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*
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* Created 1995 by Geert Uytterhoeven
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* Rewritten 1998 by Martin Mares <mj@ucw.cz>
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*
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* 2001 - Documented with DocBook
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* - Brad Douglas <brad@neruo.com>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#include <module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/font.h>
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static char *font_names;
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static LIST_HEAD(fonts_list);
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int font_register(struct font_desc *font)
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{
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if (font_names)
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return -EBUSY;
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list_add_tail(&font->list, &fonts_list);
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return 0;
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}
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int find_font_index(const struct font_desc *font, int ch)
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{
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int index;
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if (font->index == NULL) {
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index = font->width + 7;
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index /= 8;
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index *= font->height;
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index *= ch;
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} else {
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/*
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* FIXME: use binary search instead!
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*/
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index = font->num_chars - 1;
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while (index && font->index[index].wc != ch)
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index--;
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/* return 0 if not found. */
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index = font->index->index;
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}
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return index;
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}
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const struct font_desc *find_font_enum(int n)
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{
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struct font_desc *f;
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int i = 0;
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list_for_each_entry(f, &fonts_list, list) {
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if (i == n)
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return f;
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i++;
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}
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return NULL;
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}
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struct param_d *add_param_font(struct device_d *dev,
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int (*set)(struct param_d *p, void *priv),
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int (*get)(struct param_d *p, void *priv),
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int *value, void *priv)
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{
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struct font_desc *f;
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int num_fonts = 0;
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list_for_each_entry(f, &fonts_list, list)
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num_fonts++;
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if (!font_names) {
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int i = 0;
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font_names = xmalloc(sizeof(char *) * num_fonts);
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list_for_each_entry(f, &fonts_list, list) {
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((const char **)font_names)[i] = f->name;
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i++;
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}
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}
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return dev_add_param_enum(dev, "font",
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set, get, value,
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(const char **)font_names, num_fonts, priv);
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}
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MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
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MODULE_DESCRIPTION("Console Fonts");
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MODULE_LICENSE("GPL");
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