efi_loader: support CTRL+\ - CTRL+_
In the extended text input protocol support input of control letters
0x1c - 0x1f.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 1fcaabe..ee9dc6b 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -994,6 +994,7 @@
/*
* CTRL+A - CTRL+Z have to be signaled as a - z.
* SHIFT+CTRL+A - SHIFT+CTRL+Z have to be signaled as A - Z.
+ * CTRL+\ - CTRL+_ have to be signaled as \ - _.
*/
switch (next_key.key.unicode_char) {
case 0x01 ... 0x07:
@@ -1006,6 +1007,9 @@
next_key.key.unicode_char += 0x40;
else
next_key.key.unicode_char += 0x60;
+ break;
+ case 0x1c ... 0x1f:
+ next_key.key.unicode_char += 0x40;
}
*key_data = next_key;
key_available = false;