From dec27f6e11c2bdfe35791d0d25a3b1bb2204d194 Mon Sep 17 00:00:00 2001
From: "choongryeol.lee" <choongryeol.lee@lge.com>
Date: Thu, 15 Nov 2012 17:03:03 -0800
Subject: charger: suspend enable in charger mode

To reduce power consumption after charging completion, enable suspend when LCD
is turned off.

Bug: 7429504
Change-Id: I34731dc392661c9051a20cea74f70d94a8aaeb42
Signed-off-by: Iliyan Malchev <malchev@google.com>
---
 charger/Android.mk |  7 +++++++
 charger/charger.c  | 25 ++++++++++++++++++++++++-
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/charger/Android.mk b/charger/Android.mk
index fe0c91d..0258604 100644
--- a/charger/Android.mk
+++ b/charger/Android.mk
@@ -12,6 +12,10 @@ ifeq ($(strip $(BOARD_CHARGER_DISABLE_INIT_BLANK)),true)
 LOCAL_CFLAGS := -DCHARGER_DISABLE_INIT_BLANK
 endif
 
+ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
+LOCAL_CFLAGS += -DCHARGER_ENABLE_SUSPEND
+endif
+
 LOCAL_MODULE := charger
 LOCAL_MODULE_TAGS := optional
 LOCAL_FORCE_STATIC_EXECUTABLE := true
@@ -21,6 +25,9 @@ LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
 LOCAL_C_INCLUDES := bootable/recovery
 
 LOCAL_STATIC_LIBRARIES := libminui libpixelflinger_static libpng
+ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
+LOCAL_STATIC_LIBRARIES += libsuspend
+endif
 LOCAL_STATIC_LIBRARIES += libz libstdc++ libcutils libm libc
 
 include $(BUILD_EXECUTABLE)
diff --git a/charger/charger.c b/charger/charger.c
index c5e4ec2..25b3b1a 100644
--- a/charger/charger.c
+++ b/charger/charger.c
@@ -41,6 +41,10 @@
 #include <cutils/misc.h>
 #include <cutils/uevent.h>
 
+#ifdef CHARGER_ENABLE_SUSPEND
+#include <suspend/autosuspend.h>
+#endif
+
 #include "minui/minui.h"
 
 #ifndef max
@@ -352,6 +356,21 @@ static void remove_supply(struct charger *charger, struct power_supply *supply)
     free(supply);
 }
 
+#ifdef CHARGER_ENABLE_SUSPEND
+static int request_suspend(bool enable)
+{
+    if (enable)
+        return autosuspend_enable();
+    else
+        return autosuspend_disable();
+}
+#else
+static int request_suspend(bool enable)
+{
+    return 0;
+}
+#endif
+
 static void parse_uevent(const char *msg, struct uevent *uevent)
 {
     uevent->action = "";
@@ -685,6 +704,7 @@ static void update_screen_state(struct charger *charger, int64_t now)
         charger->next_screen_transition = -1;
         gr_fb_blank(true);
         LOGV("[%lld] animation done\n", now);
+        request_suspend(true);
         return;
     }
 
@@ -824,8 +844,10 @@ static void process_key(struct charger *charger, int code, int64_t now)
             }
         } else {
             /* if the power key got released, force screen state cycle */
-            if (key->pending)
+            if (key->pending) {
+                request_suspend(false);
                 kick_animation(charger->batt_anim);
+            }
         }
     }
 
@@ -843,6 +865,7 @@ static void handle_input_state(struct charger *charger, int64_t now)
 static void handle_power_supply_state(struct charger *charger, int64_t now)
 {
     if (charger->num_supplies_online == 0) {
+        request_suspend(false);
         if (charger->next_pwr_check == -1) {
             charger->next_pwr_check = now + UNPLUGGED_SHUTDOWN_TIME;
             LOGI("[%lld] device unplugged: shutting down in %lld (@ %lld)\n",
-- 
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