From 39e99623e0f5040ab002502c130a0858d985f73f Mon Sep 17 00:00:00 2001
From: Jan Altensen <info@stricted.net>
Date: Tue, 26 Nov 2019 20:34:28 +0100
Subject: [PATCH] samsung: power: dont depend on liblights_helper

 * this is partially a revert of 1226350ee7101a4dc42a4903e148f17c4bd54e4b

Change-Id: I0ab7f6dc7642f7778f802e18b2f2dda7c11d9b3b
---
 power/Android.mk |  5 +++--
 power/power.c    | 23 ++++++++++++++++++++++-
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/power/Android.mk b/power/Android.mk
index 53f60b4e..60c521d1 100644
--- a/power/Android.mk
+++ b/power/Android.mk
@@ -20,10 +20,11 @@ include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := power.c
 
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
+LOCAL_C_INCLUDES := \
+    $(LOCAL_PATH)/include \
+    $(LOCAL_PATH)/../hidl/light/include
 
 LOCAL_SHARED_LIBRARIES := liblog libcutils
-LOCAL_STATIC_LIBRARIES := liblights_helper
 
 LOCAL_MODULE := power.$(TARGET_BOOTLOADER_BOARD_NAME)
 LOCAL_MODULE_RELATIVE_PATH := hw
diff --git a/power/power.c b/power/power.c
index f9b268c1..f53f058c 100644
--- a/power/power.c
+++ b/power/power.c
@@ -35,7 +35,7 @@
 
 #include <hardware/hardware.h>
 #include <hardware/power.h>
-#include <liblights/samsung_lights_helper.h>
+#include "samsung_lights.h"
 
 #include "samsung_power.h"
 
@@ -210,6 +210,27 @@ static void send_boostpulse(int boostpulse_fd)
     }
 }
 
+static int get_cur_panel_brightness() {
+    int ret = 0;
+    int read_status;
+    // brightness can range from 0 to 255, so max. 3 chars + '\0'
+    char panel_brightness[4];
+    // for strtol
+    char *dummy;
+    const int base = 10;
+
+    read_status = sysfs_read(PANEL_BRIGHTNESS_NODE, panel_brightness, sizeof(PANEL_BRIGHTNESS_NODE));
+    if (read_status < 0) {
+        ALOGE("%s: Failed to read panel brightness from %s!\n", __func__, PANEL_BRIGHTNESS_NODE);
+        return -1;
+    }
+
+    ret = strtol(panel_brightness, &dummy, base);
+    ALOGV("%s: Panel brightness is: %d", __func__, ret);
+
+    return ret;
+}
+
 /**********************************************************
  *** POWER FUNCTIONS
  **********************************************************/