lib: add some utf16 handling helpers
We'll eventually want these in a few places in efi_loader, and also
vsprintf.
Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 5ebce4b..3fc82b8 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -7,6 +7,7 @@
*/
#include <common.h>
+#include <charset.h>
#include <efi_loader.h>
static bool console_size_queried;
@@ -138,20 +139,8 @@
static void print_unicode_in_utf8(u16 c)
{
- char utf8[4] = { 0 };
- char *b = utf8;
-
- if (c < 0x80) {
- *(b++) = c;
- } else if (c < 0x800) {
- *(b++) = 192 + c / 64;
- *(b++) = 128 + c % 64;
- } else {
- *(b++) = 224 + c / 4096;
- *(b++) = 128 + c / 64 % 64;
- *(b++) = 128 + c % 64;
- }
-
+ char utf8[MAX_UTF8_PER_UTF16] = { 0 };
+ utf16_to_utf8((u8 *)utf8, &c, 1);
puts(utf8);
}