Added a hidden power off feature

Use <LEFT> + <START> to power off. This is still experimental.
d0k3 · Nov 5, 2015 · 6826048 · 6826048
1 parent 45f6f34
commit 6826048
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Showing 3 changed files with 23 additions and 6 deletions.
diff --git a/source/main.c b/source/main.c
@@ -108,14 +108,23 @@ void Reboot()
     while(true);
 }
 
+
+void PowerOff()
+{
+    i2cWriteRegister(I2C_DEV_MCU, 0x20, 1 << 0);
+    while (true);
+}
+
+
 int main()
 {
+    ClearBottomScreen();
     DebugClear();
     InitFS();
 
-    ProcessMenu(menu, sizeof(menu) / sizeof(MenuInfo));
+    u32 menu_exit = ProcessMenu(menu, sizeof(menu) / sizeof(MenuInfo));
 
     DeinitFS();
-    Reboot();
+    (menu_exit == MENU_EXIT_REBOOT) ? Reboot() : PowerOff();
     return 0;
 }
diff --git a/source/menu.c b/source/menu.c
@@ -104,11 +104,12 @@ u32 ProcessEntry(MenuEntry* entry)
     return pad_state;
 }
 
-void ProcessMenu(MenuInfo* info, u32 nMenus)
+u32 ProcessMenu(MenuInfo* info, u32 nMenus)
 {
     MenuInfo mainMenu;
     MenuInfo* currMenu = &mainMenu;
     u32 index = 0;
+    u32 result = MENU_EXIT_REBOOT;
 
     // build main menu structure from submenus
     memset(&mainMenu, 0x00, sizeof(MenuInfo));
@@ -150,11 +151,15 @@ void ProcessMenu(MenuInfo* info, u32 nMenus)
             index = 0;
         } else if (pad_state & BUTTON_SELECT) {
             pad_state = UnmountSd();
-        }else {
+        } else {
             full_draw = false;
         }
-        if (pad_state & BUTTON_START)
+        if (pad_state & BUTTON_START) {
+            result = (pad_state & BUTTON_LEFT) ? MENU_EXIT_POWEROFF : MENU_EXIT_REBOOT;
             break;
+        }
         DrawMenu(currMenu, index, full_draw, currMenu != &mainMenu);
     }
+
+    return result;
 }
diff --git a/source/menu.h b/source/menu.h
@@ -2,6 +2,9 @@
 
 #include "common.h"
 
+#define MENU_EXIT_REBOOT    0
+#define MENU_EXIT_POWEROFF  1
+
 typedef struct {
     char* name;
     u32 (*function)(void);
@@ -15,4 +18,4 @@ typedef struct {
     MenuEntry entries[12];
 } MenuInfo;
 
-void ProcessMenu(MenuInfo* info, u32 nMenus);
+u32 ProcessMenu(MenuInfo* info, u32 nMenus);