drivers/video/fonts.c

   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  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file COPYING in the main directory of this archive
   9  * for more details.
  10  */
  11
  12
  13 #include <linux/config.h>
  14 #include <linux/types.h>
  15 #include <linux/string.h>
  16 #if defined(__mc68000__) || defined(CONFIG_APUS)
  17 #include <asm/setup.h>
  18 #endif
  19 #include <video/font.h>
  20
  21 #define NO_FONTS
  22
  23 static struct fbcon_font_desc *fbcon_fonts[] = {
  24 #ifdef CONFIG_FONT_8x8
  25 #undef NO_FONTS
  26     &font_vga_8x8,
  27 #endif
  28 #ifdef CONFIG_FONT_8x16
  29 #undef NO_FONTS
  30     &font_vga_8x16,
  31 #endif
  32 #ifdef CONFIG_FONT_6x11
  33 #if defined(CONFIG_FBCON_MAC) || defined(CONFIG_FB_SBUS)
  34 #undef NO_FONTS
  35 #endif
  36     &font_vga_6x11,
  37 #endif
  38 #ifdef CONFIG_FONT_SUN8x16
  39 #undef NO_FONTS
  40     &font_sun_8x16,
  41 #endif
  42 #ifdef CONFIG_FONT_SUN12x22
  43 #if defined(CONFIG_FB_SBUS) || defined(CONFIG_FBCON_CFB8) || defined(CONFIG_FBCON_CFB16) || defined(CONFIG_FBCON_CFB24) || defined(CONFIG_FBCON_CFB32)
  44 #undef NO_FONTS
  45 #endif
  46     &font_sun_12x22,
  47 #endif
  48 #ifdef CONFIG_FONT_ACORN_8x8
  49 #undef NO_FONTS
  50     &font_acorn_8x8,
  51 #endif
  52 #ifdef CONFIG_FONT_PEARL_8x8
  53 #undef NO_FONTS
  54     &font_pearl_8x8,
  55 #endif
  56 };
  57
  58 #define num_fonts (sizeof(fbcon_fonts)/sizeof(*fbcon_fonts))
  59
  60 #ifdef NO_FONTS
  61 #error No fonts configured.
  62 #endif
  63
  64    /*
  65     *    Find a font with a specific name
  66     */
  67
  68 struct fbcon_font_desc *fbcon_find_font(char *name)
  69 {
  70    unsigned int i;
  71
  72    for (i = 0; i < num_fonts; i++)
  73       if (!strcmp(fbcon_fonts[i]->name, name))
  74           return fbcon_fonts[i];
  75    return NULL;
  76 }
  77
  78
  79    /*
  80     *    Get the default font for a specific screen size
  81     */
  82
  83 struct fbcon_font_desc *fbcon_get_default_font(int xres, int yres)
  84 {
  85     int i, c, cc;
  86     struct fbcon_font_desc *f, *g;
  87
  88     g = NULL;
  89     cc = -10000;
  90     for(i=0; i<num_fonts; i++) {
  91         f = fbcon_fonts[i];
  92         c = f->pref;
  93 #if defined(__mc68000__) || defined(CONFIG_APUS)
  94 #ifdef CONFIG_FONT_PEARL_8x8
  95         if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX)
  96             c = 100;
  97 #endif
  98 #ifdef CONFIG_FONT_6x11
  99         if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX)
 100             c = 100;
 101 #endif
 102 #endif
 103         if ((yres < 400) == (f->height <= 8))
 104             c += 1000;
 105         if (c > cc) {
 106             cc = c;
 107             g = f;
 108         }
 109     }
 110     return g;
 111 }