linux-stable/include/linux/font.h
Peilin Ye 4ee573086b Fonts: Add charcount field to font_desc
Subsystems are hard-coding the number of characters of our built-in fonts
as 256. Include that information in our kernel font descriptor, `struct
font_desc`.

Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/65952296d1d9486093bd955d1536f7dcd11112c6.1605169912.git.yepeilin.cs@gmail.com
2020-11-16 16:31:41 +01:00

78 lines
1.7 KiB
C

/*
* font.h -- `Soft' font definitions
*
* Created 1995 by Geert Uytterhoeven
*
* 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.
*/
#ifndef _VIDEO_FONT_H
#define _VIDEO_FONT_H
#include <linux/types.h>
struct font_desc {
int idx;
const char *name;
unsigned int width, height;
unsigned int charcount;
const void *data;
int pref;
};
#define VGA8x8_IDX 0
#define VGA8x16_IDX 1
#define PEARL8x8_IDX 2
#define VGA6x11_IDX 3
#define FONT7x14_IDX 4
#define FONT10x18_IDX 5
#define SUN8x16_IDX 6
#define SUN12x22_IDX 7
#define ACORN8x8_IDX 8
#define MINI4x6_IDX 9
#define FONT6x10_IDX 10
#define TER16x32_IDX 11
#define FONT6x8_IDX 12
extern const struct font_desc font_vga_8x8,
font_vga_8x16,
font_pearl_8x8,
font_vga_6x11,
font_7x14,
font_10x18,
font_sun_8x16,
font_sun_12x22,
font_acorn_8x8,
font_mini_4x6,
font_6x10,
font_ter_16x32,
font_6x8;
/* Find a font with a specific name */
extern const struct font_desc *find_font(const char *name);
/* Get the default font for a specific screen size */
extern const struct font_desc *get_default_font(int xres, int yres,
u32 font_w, u32 font_h);
/* Max. length for the name of a predefined font */
#define MAX_FONT_NAME 32
/* Extra word getters */
#define REFCOUNT(fd) (((int *)(fd))[-1])
#define FNTSIZE(fd) (((int *)(fd))[-2])
#define FNTCHARCNT(fd) (((int *)(fd))[-3])
#define FNTSUM(fd) (((int *)(fd))[-4])
#define FONT_EXTRA_WORDS 4
struct font_data {
unsigned int extra[FONT_EXTRA_WORDS];
const unsigned char data[];
} __packed;
#endif /* _VIDEO_FONT_H */