eficonfig: add vertical scroll support
The current eficonfig menu does not support vertical scroll,
so it can not display the menu entries greater than
the console row size.
This commit add the vertial scroll support.
The console size is retrieved by
SIMPLE_TEXT_OUTPUT_PROTOCOL.QueryMode() service, then
calculates the row size for menu entry by subtracting
menu header and description row size from the console row size.
"start" and "end" are added in the efimenu structure.
"start" keeps the menu entry index at the top, "end" keeps
the bottom menu entry index. item_data_print() menu function
only draws the menu entry between "start" and "end".
This commit also fixes the issue that "Save" and "Quit"
entries can be moved by BKEY_PLUS in change boot order menu.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/include/efi_config.h b/include/efi_config.h
index cec5715..6a104e4 100644
--- a/include/efi_config.h
+++ b/include/efi_config.h
@@ -49,6 +49,8 @@
* @menu_header: menu header string
* @menu_desc: menu description string
* @list: menu entry list structure
+ * @start: top menu index to draw
+ * @end: bottom menu index to draw
*/
struct efimenu {
int delay;
@@ -57,6 +59,8 @@
char *menu_header;
const char *menu_desc;
struct list_head list;
+ int start;
+ int end;
};
/**
diff --git a/include/efi_loader.h b/include/efi_loader.h
index f9e427f..4560b0d 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -328,6 +328,7 @@
extern const efi_guid_t smbios_guid;
/*GUID of console */
extern const efi_guid_t efi_guid_text_input_protocol;
+extern const efi_guid_t efi_guid_text_output_protocol;
extern char __efi_runtime_start[], __efi_runtime_stop[];
extern char __efi_runtime_rel_start[], __efi_runtime_rel_stop[];