expo: cedit: Support writing settings to CMOS RAM
Add a command to write cedit settings to CMOS RAM so that it can be
preserved across a reboot. This uses a simple bit-encoding, where each
field has a 'bit position' and a 'bit length' in the schema.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/boot/cedit.c b/test/boot/cedit.c
index 7cf0c3e..010aae6 100644
--- a/test/boot/cedit.c
+++ b/test/boot/cedit.c
@@ -155,3 +155,33 @@
return 0;
}
BOOTSTD_TEST(cedit_env, 0);
+
+/* Check the cedit write_cmos and read_cmos commands */
+static int cedit_cmos(struct unit_test_state *uts)
+{
+ struct scene_obj_menu *menu, *menu2;
+ struct video_priv *vid_priv;
+ extern struct expo *cur_exp;
+ struct scene *scn;
+
+ console_record_reset_enable();
+ ut_assertok(run_command("cedit load hostfs - cedit.dtb", 0));
+
+ ut_asserteq(ID_SCENE1, cedit_prepare(cur_exp, &vid_priv, &scn));
+
+ /* get the menus to fiddle with */
+ menu = scene_obj_find(scn, ID_CPU_SPEED, SCENEOBJT_MENU);
+ ut_assertnonnull(menu);
+ menu->cur_item_id = ID_CPU_SPEED_2;
+
+ menu2 = scene_obj_find(scn, ID_POWER_LOSS, SCENEOBJT_MENU);
+ ut_assertnonnull(menu2);
+ menu2->cur_item_id = ID_AC_MEMORY;
+
+ ut_assertok(run_command("cedit write_cmos -v", 0));
+ ut_assert_nextlinen("Write 2 bytes from offset 80 to 84");
+ ut_assert_console_end();
+
+ return 0;
+}
+BOOTSTD_TEST(cedit_cmos, 0);
diff --git a/test/boot/files/expo_layout.dts b/test/boot/files/expo_layout.dts
index 913140b..cb2a674 100644
--- a/test/boot/files/expo_layout.dts
+++ b/test/boot/files/expo_layout.dts
@@ -38,6 +38,9 @@
/* IDs for the menu items */
item-id = <ID_CPU_SPEED_1 ID_CPU_SPEED_2
ID_CPU_SPEED_3>;
+
+ start-bit = <0x400>;
+ bit-length = <2>;
};
power-loss {
@@ -49,6 +52,8 @@
"Memory";
item-id = <ID_AC_OFF ID_AC_ON ID_AC_MEMORY>;
+ start-bit = <0x422>;
+ bit-length = <2>;
};
};
};