diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/console_struct.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h index ea0cdf4278a3..771cba16cb54 100644 --- a/include/linux/console_struct.h +++ b/include/linux/console_struct.h @@ -83,6 +83,34 @@ struct vc_font { const unsigned char *data; }; +/** + * vc_font_pitch - Calculates the number of bytes between two adjacent scanlines + * @font: The VC font + * + * Returns: + * The number of bytes between two adjacent scanlines in the font data + */ +static inline unsigned int vc_font_pitch(const struct vc_font *font) +{ + return DIV_ROUND_UP(font->width, 8); +} + +/** + * vc_font_size - Calculates the size of the font data in bytes + * @font: The VC font + * + * vc_font_size() calculates the number of bytes of font data in the + * font specified by @font. The function calculates the size from the + * font parameters. + * + * Returns: + * The size of the font data in bytes. + */ +static inline unsigned int vc_font_size(const struct vc_font *font) +{ + return font->height * vc_font_pitch(font) * font->charcount; +} + /* * Example: vc_data of a console that was scrolled 3 lines down. * |