fonts: Add 6x10 font

This font is suitable for framebuffer consoles on devices with a
320x240 screen, to get a reasonable number of characters (53x24) that
are still at a readable size.

The font is derived from the existing 6x11 font, but gets 3 extra
lines without sacrificing readability. Also I redesigned a some glyhps
so they are more distinct and better fill the available space.

Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

include/linux/font.h

@@ -31,6 +31,7 @@ struct font_desc {
 #define SUN12x22_IDX	7
 #define ACORN8x8_IDX	8
 #define	MINI4x6_IDX	9
+#define FONT6x10_IDX	10
 
 extern const struct font_desc	font_vga_8x8,
 			font_vga_8x16,
@@ -41,7 +42,8 @@ extern const struct font_desc	font_vga_8x8,
 			font_sun_8x16,
 			font_sun_12x22,
 			font_acorn_8x8,
-			font_mini_4x6;
+			font_mini_4x6,
+			font_6x10;
 
 /* Find a font with a specific name */
 

lib/fonts/Kconfig

@@ -79,6 +79,14 @@ config FONT_MINI_4x6
 	bool "Mini 4x6 font"
 	depends on !SPARC && FONTS
 
+config FONT_6x10
+	bool "Medium-size 6x10 font"
+	depends on !SPARC && FONTS
+	help
+	  Medium-size console font. Suitable for framebuffer consoles on
+	  embedded devices with a 320x240 screen, to get a reasonable number
+	  of characters (53x24) that are still at a readable size.
+
 config FONT_SUN8x16
 	bool "Sparc console 8x16 font"
 	depends on FRAMEBUFFER_CONSOLE && (!SPARC && FONTS || SPARC)
@@ -109,6 +117,7 @@ config FONT_AUTOSELECT
 	depends on !FONT_PEARL_8x8
 	depends on !FONT_ACORN_8x8
 	depends on !FONT_MINI_4x6
+	depends on !FONT_6x10
 	depends on !FONT_SUN8x16
 	depends on !FONT_SUN12x22
 	depends on !FONT_10x18

lib/fonts/Makefile

@@ -12,6 +12,7 @@ font-objs-$(CONFIG_FONT_10x18)     += font_10x18.o
 font-objs-$(CONFIG_FONT_PEARL_8x8) += font_pearl_8x8.o
 font-objs-$(CONFIG_FONT_ACORN_8x8) += font_acorn_8x8.o
 font-objs-$(CONFIG_FONT_MINI_4x6)  += font_mini_4x6.o
+font-objs-$(CONFIG_FONT_6x10)      += font_6x10.o
 
 font-objs += $(font-objs-y)
 

lib/fonts/fonts.c

@@ -63,6 +63,10 @@ static const struct font_desc *fonts[] = {
 #undef NO_FONTS
     &font_mini_4x6,
 #endif
+#ifdef CONFIG_FONT_6x10
+#undef NO_FONTS
+    &font_6x10,
+#endif
 };
 
 #define num_fonts ARRAY_SIZE(fonts)