1/*
2 * linux/drivers/video/fonts.c -- `Soft' font definitions
3 *
4 *    Created 1995 by Geert Uytterhoeven
5 *    Rewritten 1998 by Martin Mares <mj@ucw.cz>
6 *
7 *	2001 - Documented with DocBook
8 *	- Brad Douglas <brad@neruo.com>
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License.  See the file COPYING in the main directory of this archive
12 * for more details.
13 */
14
15#include <linux/module.h>
16#include <linux/types.h>
17#include <linux/string.h>
18#if defined(__mc68000__) || defined(CONFIG_APUS)
19#include <asm/setup.h>
20#endif
21#include <linux/font.h>
22
23#define NO_FONTS
24
25static const struct font_desc *fonts[] = {
26#ifdef CONFIG_FONT_8x8
27#undef NO_FONTS
28    &font_vga_8x8,
29#endif
30#ifdef CONFIG_FONT_8x16
31#undef NO_FONTS
32    &font_vga_8x16,
33#endif
34#ifdef CONFIG_FONT_6x11
35#undef NO_FONTS
36    &font_vga_6x11,
37#endif
38#ifdef CONFIG_FONT_7x14
39#undef NO_FONTS
40    &font_7x14,
41#endif
42#ifdef CONFIG_FONT_SUN8x16
43#undef NO_FONTS
44    &font_sun_8x16,
45#endif
46#ifdef CONFIG_FONT_SUN12x22
47#undef NO_FONTS
48    &font_sun_12x22,
49#endif
50#ifdef CONFIG_FONT_10x18
51#undef NO_FONTS
52    &font_10x18,
53#endif
54#ifdef CONFIG_FONT_ACORN_8x8
55#undef NO_FONTS
56    &font_acorn_8x8,
57#endif
58#ifdef CONFIG_FONT_PEARL_8x8
59#undef NO_FONTS
60    &font_pearl_8x8,
61#endif
62#ifdef CONFIG_FONT_MINI_4x6
63#undef NO_FONTS
64    &font_mini_4x6,
65#endif
66};
67
68#define num_fonts ARRAY_SIZE(fonts)
69
70#ifdef NO_FONTS
71#error No fonts configured.
72#endif
73
74
75/**
76 *	find_font - find a font
77 *	@name: string name of a font
78 *
79 *	Find a specified font with string name @name.
80 *
81 *	Returns %NULL if no font found, or a pointer to the
82 *	specified font.
83 *
84 */
85
86const struct font_desc *find_font(const char *name)
87{
88   unsigned int i;
89
90   for (i = 0; i < num_fonts; i++)
91      if (!strcmp(fonts[i]->name, name))
92	  return fonts[i];
93   return NULL;
94}
95
96
97/**
98 *	get_default_font - get default font
99 *	@xres: screen size of X
100 *	@yres: screen size of Y
101 *      @font_w: bit array of supported widths (1 - 32)
102 *      @font_h: bit array of supported heights (1 - 32)
103 *
104 *	Get the default font for a specified screen size.
105 *	Dimensions are in pixels.
106 *
107 *	Returns %NULL if no font is found, or a pointer to the
108 *	chosen font.
109 *
110 */
111
112const struct font_desc *get_default_font(int xres, int yres, u32 font_w,
113					 u32 font_h)
114{
115    int i, c, cc;
116    const struct font_desc *f, *g;
117
118    g = NULL;
119    cc = -10000;
120    for(i=0; i<num_fonts; i++) {
121	f = fonts[i];
122	c = f->pref;
123#if defined(__mc68000__) || defined(CONFIG_APUS)
124#ifdef CONFIG_FONT_PEARL_8x8
125	if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX)
126	    c = 100;
127#endif
128#ifdef CONFIG_FONT_6x11
129	if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX)
130	    c = 100;
131#endif
132#endif
133	if ((yres < 400) == (f->height <= 8))
134	    c += 1000;
135
136	if (!(font_w & (1 << (f->width - 1))) ||
137	    !(font_w & (1 << (f->height - 1))))
138	    c += 1000;
139
140	if (c > cc) {
141	    cc = c;
142	    g = f;
143	}
144    }
145    return g;
146}
147
148EXPORT_SYMBOL(find_font);
149EXPORT_SYMBOL(get_default_font);
150
151MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
152MODULE_DESCRIPTION("Console Fonts");
153MODULE_LICENSE("GPL");
154