fbcon: font setting should check limitation of driver
fbcon_set_font() will now check if the new font dimensions can be drawn by the
driver (by checking pixmap.blit_x and blit_y). Similarly, add 2 new
parameters to get_default_font(), font_w and font_h, to further aid in the
font selection process.
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/console/fonts.c b/drivers/video/console/fonts.c
index c960728..a6828d0 100644
--- a/drivers/video/console/fonts.c
+++ b/drivers/video/console/fonts.c
@@ -98,6 +98,8 @@
* get_default_font - get default font
* @xres: screen size of X
* @yres: screen size of Y
+ * @font_w: bit array of supported widths (1 - 32)
+ * @font_h: bit array of supported heights (1 - 32)
*
* Get the default font for a specified screen size.
* Dimensions are in pixels.
@@ -107,7 +109,8 @@
*
*/
-const struct font_desc *get_default_font(int xres, int yres)
+const struct font_desc *get_default_font(int xres, int yres, u32 font_w,
+ u32 font_h)
{
int i, c, cc;
const struct font_desc *f, *g;
@@ -129,6 +132,11 @@
#endif
if ((yres < 400) == (f->height <= 8))
c += 1000;
+
+ if (!(font_w & (1 << (f->width - 1))) ||
+ !(font_w & (1 << (f->height - 1))))
+ c += 1000;
+
if (c > cc) {
cc = c;
g = f;