Git init

16 files changed, 925 insertions, 0 deletions

diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..0a63eea
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1 @@
+Pius Lee <pius.lee@samsung.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100755
index 0000000..b1e0673
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,90 @@
+
+CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+SET(fw_name "capi-system-device")
+
+PROJECT(${fw_name})
+
+SET(CMAKE_INSTALL_PREFIX /usr)
+SET(PREFIX ${CMAKE_INSTALL_PREFIX})
+
+SET(INC_DIR include)
+INCLUDE_DIRECTORIES(${INC_DIR})
+
+SET(dependents "devman dlog vconf")
+
+INCLUDE(FindPkgConfig)
+pkg_check_modules(${fw_name} REQUIRED ${dependents})
+FOREACH(flag ${${fw_name}_CFLAGS})
+    SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
+ENDFOREACH(flag)
+
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS} -fPIC -Wall -Werror")
+SET(CMAKE_C_FLAGS_DEBUG "-O0 -g")
+
+IF("${ARCH}" STREQUAL "arm")
+    ADD_DEFINITIONS("-DTARGET")
+ENDIF("${ARCH}" STREQUAL "arm")
+
+ADD_DEFINITIONS("-DPREFIX=\"${CMAKE_INSTALL_PREFIX}\"")
+ADD_DEFINITIONS("-DTIZEN_DEBUG")
+
+SET(CMAKE_EXE_LINKER_FLAGS "-Wl,--as-needed -Wl,--rpath=/usr/lib")
+
+aux_source_directory(src SOURCES)
+ADD_LIBRARY(${fw_name} SHARED ${SOURCES})
+
+TARGET_LINK_LIBRARIES(${fw_name} ${${fw_name}_LDFLAGS})
+
+INSTALL(TARGETS ${fw_name} DESTINATION lib)
+INSTALL(
+        DIRECTORY ${INC_DIR}/ DESTINATION include/system
+        FILES_MATCHING
+        PATTERN "*_private.h" EXCLUDE
+        PATTERN "${INC_DIR}/*.h"
+        )
+
+SET(PC_NAME ${fw_name})
+SET(PC_REQUIRED ${dependents})
+SET(PC_LDFLAGS -l${fw_name})
+SET(PC_CFLAGS -I\${includedir}/system)
+
+CONFIGURE_FILE(
+    ${fw_name}.pc.in
+    ${CMAKE_CURRENT_SOURCE_DIR}/${fw_name}.pc
+    @ONLY
+)
+INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/${fw_name}.pc DESTINATION lib/pkgconfig)
+
+#ADD_SUBDIRECTORY(test)
+
+IF(UNIX)
+
+ADD_CUSTOM_TARGET (distclean @echo cleaning for source distribution)
+ADD_CUSTOM_COMMAND(
+        DEPENDS clean 
+        COMMENT "distribution clean"
+        COMMAND find
+        ARGS    . 
+        -not -name config.cmake -and \(
+        -name tester.c -or
+        -name Testing -or
+        -name CMakeFiles -or
+        -name cmake.depends -or
+        -name cmake.check_depends -or
+        -name CMakeCache.txt -or
+        -name cmake.check_cache -or
+        -name *.cmake -or
+        -name Makefile -or
+        -name core -or
+        -name core.* -or
+        -name gmon.out -or
+        -name install_manifest.txt -or
+        -name *.pc -or
+        -name *~ \)
+        | grep -v TC | xargs rm -rf
+        TARGET  distclean
+        VERBATIM
+)
+
+ENDIF(UNIX)
+
diff --git a/LICENSE b/LICENSE
new file mode 100755
index 0000000..bbe9d02
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,206 @@
+Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.

+

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+                           Version 2.0, January 2004

+                        http://www.apache.org/licenses/

+

+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

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+   5. Submission of Contributions. Unless You explicitly state otherwise,

+      any Contribution intentionally submitted for inclusion in the Work

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+      the terms of any separate license agreement you may have executed

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+   6. Trademarks. This License does not grant permission to use the trade

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+      unless required by applicable law (such as deliberate and grossly

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+   Unless required by applicable law or agreed to in writing, software

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+

diff --git a/capi-system-device.pc.in b/capi-system-device.pc.in
new file mode 100644
index 0000000..f758dbd
--- /dev/null
+++ b/capi-system-device.pc.in
@@ -0,0 +1,15 @@
+
+# Package Information for pkg-config
+
+prefix=@PREFIX@
+exec_prefix=/usr
+libdir=/usr/lib
+includedir=/usr/include/system
+
+Name: @PC_NAME@
+Description: @PACKAGE_DESCRIPTION@
+Version: @VERSION@
+Requires: @PC_REQUIRED@ 
+Libs: -L${libdir} @PC_LDFLAGS@
+Cflags: -I${includedir} @PC_CFLAGS@
+
diff --git a/debian/README b/debian/README
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/debian/README
diff --git a/debian/capi-system-device-dev.install b/debian/capi-system-device-dev.install
new file mode 100644
index 0000000..761a28b
--- /dev/null
+++ b/debian/capi-system-device-dev.install
@@ -0,0 +1,4 @@
+/usr/include/*
+/usr/include/*/*
+/usr/lib/pkgconfig/*.pc
+
diff --git a/debian/capi-system-device-dev.postinst b/debian/capi-system-device-dev.postinst
new file mode 100644
index 0000000..1a24852
--- /dev/null
+++ b/debian/capi-system-device-dev.postinst
@@ -0,0 +1 @@
+#!/bin/sh
diff --git a/debian/capi-system-device.install b/debian/capi-system-device.install
new file mode 100644
index 0000000..4a755a4
--- /dev/null
+++ b/debian/capi-system-device.install
@@ -0,0 +1 @@
+/usr/lib/lib*.so*
diff --git a/debian/capi-system-device.postinst b/debian/capi-system-device.postinst
new file mode 100644
index 0000000..1a24852
--- /dev/null
+++ b/debian/capi-system-device.postinst
@@ -0,0 +1 @@
+#!/bin/sh
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 0000000..753c8a7
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,13 @@
+capi-system-device (0.1.0-5) unstable; urgency=low
+
+  * update versioning 
+  * Git: api/device
+  * Tag: capi-system-device_0.1.0-5
+
+ -- Pius Lee <pius.lee@samsung.com>  Thu, 15 Dec 2011 13:46:58 +0900
+
+capi-system-device (0.0.1-1) unstable; urgency=low
+
+  * Initial release.
+
+ -- Pius Lee <pius.lee@samsung.com>  Wed, 07 Dec 2011 12:39:36 +0900
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 0000000..7ed6ff8
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+5
diff --git a/debian/control b/debian/control
new file mode 100644
index 0000000..c0f1535
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,22 @@
+
+Source: capi-system-device
+Section: libs
+Priority: extra
+Maintainer: pius lee <pius.lee@samsung.com>
+Build-Depends: debhelper (>= 5), dlog-dev, libdevman-dev, libglib2.0-dev, capi-base-common-dev, libvconf-dev  
+
+Package: capi-system-device
+Architecture: any
+Depends: ${shilbs:Depends}, ${misc:Depends}
+Description: A Device library in Tizen Native API
+
+Package: capi-system-device-dev
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, capi-system-device (= ${Source-Version}), dlog-dev, libdevman-dev, capi-base-common-dev, libvconf-dev
+Description: A Device library in Tizen Native API (DEV)
+
+Package: capi-system-device-dbg
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, capi-system-device (= ${Source-Version})
+Description: A Device library in Tizen Native API (DBG)
+
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 0000000..30e9018
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,65 @@
+#!/usr/bin/make -f
+
+CFLAGS = -Wall -g
+
+ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
+	CFLAGS += -O0
+else
+	CFLAGS += -O2
+endif
+CMAKE_ROOT_DIR ?= $(CURDIR)
+CMAKE_BUILD_DIR ?= $(CURDIR)/cmake_build_tmp
+
+configure: configure-stamp
+configure-stamp:
+	dh_testdir
+	mkdir -p $(CMAKE_BUILD_DIR) && cd $(CMAKE_BUILD_DIR) && cmake ..
+	touch configure-stamp
+
+
+build: build-stamp
+build-stamp: configure-stamp 
+	dh_testdir
+	cd $(CMAKE_BUILD_DIR) && $(MAKE)
+	touch $@
+
+clean:
+	cd $(CMAKE_ROOT_DIR)
+	dh_testdir
+	dh_testroot
+	rm -f build-stamp configure-stamp
+	rm -f `find . -name *.pc`
+	rm -rf $(CMAKE_BUILD_DIR)
+	dh_clean
+	
+install: build
+	dh_testdir
+	dh_testroot
+	dh_clean -k 
+	dh_installdirs
+
+	cd $(CMAKE_BUILD_DIR) && $(MAKE) DESTDIR=$(CURDIR)/debian/tmp install
+
+binary-indep: build install
+
+binary-arch: build install
+	dh_testdir
+	dh_testroot
+	dh_installchangelogs 
+	dh_installdocs
+	dh_installexamples
+	dh_install --sourcedir=debian/tmp
+	dh_installman
+	dh_link
+	dh_strip --dbg-package=capi-system-device-dbg
+	dh_fixperms
+	dh_makeshlibs
+	dh_installdeb
+	dh_shlibdeps
+	dh_gencontrol
+	dh_md5sums
+	dh_builddeb
+
+binary: binary-indep binary-arch
+.PHONY: build clean binary-indep binary-arch binary install configure
+
diff --git a/include/device.h b/include/device.h
new file mode 100644
index 0000000..a05aef1
--- /dev/null
+++ b/include/device.h
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License. 
+ */
+
+
+
+
+#ifndef __TIZEN_SYSTEM_DEVICE_H__
+#define __TIZEN_SYSTEM_DEVICE_H__
+
+#include <stdbool.h>
+#include <tizen_error.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * @addtogroup CAPI_SYSTEM_DEVICE_MODULE
+ * @{
+ */
+
+/**
+ * @brief Enumerations of error code for Device.
+ */
+typedef enum
+{
+    DEVICE_ERROR_NONE              = TIZEN_ERROR_NONE,                  /**< Successful */
+    DEVICE_ERROR_INVALID_PARAMETER = TIZEN_ERROR_INVALID_PARAMETER,   /**< Invalid parameter */
+    DEVICE_ERROR_OPERATION_FAILED  = TIZEN_ERROR_SYSTEM_CLASS | 0x12, /**< Operation failed */
+} device_error_e;
+
+/**
+ * @}
+*/
+
+ /**
+ * @addtogroup CAPI_SYSTEM_DEVICE_MODULE
+ * @{
+ */
+
+/**
+ * @brief Called when an battery charge percentage changed
+ *
+ * @param[out] percent       The remaining battery charge percentage (0 ~ 100) 
+ * @param[in]  user_data     The user data passed from the callback registration function
+ *
+ */
+typedef void (*device_battery_cb)(int percent, void *user_data); 
+
+/**
+ * @brief Gets the battery charge percentage.
+ * @details It returns integer value from 0 to 100 that indicates remaining battery charge
+ * as a percentage of the maximum level.
+ * @remarks In order to be notified when the battery state changes, use system_info_set_changed_cb().
+ *
+ * @param[out] percent The remaining battery charge percentage (0 ~ 100) 
+ *
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER	Invalid parameter
+ * @retval #DEVICE_ERROR_OPERATION_FAILED	Operation failed
+ *
+ * @see device_battery_is_full()
+ * @see system_info_get_value_int(SYSTEM_INFO_KEY_BATTERY_PERCENTAGE, ...)
+ * @see system_info_get_value_int(SYSTEM_INFO_KEY_BATTERY_CHARGE, ...)
+ */
+int device_battery_get_percent(int *percent);
+
+/**
+ * @brief Get charging state
+ *
+ * @param[out] charging The battery charging state.
+ *
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER	Invalid parameter
+ * @retval #DEVICE_ERROR_OPERATION_FAILED	Operation failed
+ *
+ */
+int device_battery_is_charging(bool *charging);
+
+/**
+ * @brief Set callback to be observing battery charge percentage.
+ *
+ * @param[in] callback      The callback function to set
+ * @param[in] user_data     The user data to be passed to the callback function
+ *
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER	Invalid parameter
+ * @retval #DEVICE_ERROR_OPERATION_FAILED	Operation failed
+ */
+int device_battery_set_cb(device_battery_cb callback, void* user_data);
+
+/**
+ * @brief Unset battery charge percentage callback function.
+ *
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_OPERATION_FAILED	Operation failed
+ */
+int device_battery_unset_cb(void);
+
+/**
+ * @brief Checks whether the battery is fully charged.
+ * @remarks In order to be notified when the battery state changes, use system_info_set_changed_cb().
+ *
+ * @param[out] full @c true when the battery is fully charged, otherwise @c false.
+ *
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER	Invalid parameter
+ * @retval #DEVICE_ERROR_OPERATION_FAILED	Operation failed
+ *
+ * @see device_battery_get_percent()
+ * @see	system_info_set_changed_cb()
+ * @see system_info_get_value_int(SYSTEM_INFO_KEY_BATTERY_PERCENTAGE, ...)
+ * @see system_info_get_value_int(SYSTEM_INFO_KEY_BATTERY_CHARGE, ...)
+ */
+int device_battery_is_full(bool *full);
+
+/**
+ * @brief Gets the number of display devices.
+ *
+ * @return The number of display devices that the device provides.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER	Invalid parameter
+ *
+ * @see	device_get_brightness()
+ * @see device_set_brightness()
+ * @see device_get_max_brightness()
+ */
+int device_get_display_numbers(int* device_number);
+
+/**
+ * @brief Gets the display brightness value.
+ *
+ * @param[in] display_index	The index of the display, it be greater than or equal to 0 and less than \n
+ *                          the number of displays returned by device_get_display_numbers().\n
+ *                          The index zero is always assigned to the main display.
+ * @param[out] brightness	The current brightness value of the display
+ *
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER	Invalid parameter
+ * @retval #DEVICE_ERROR_OPERATION_FAILED	Operation failed
+ *
+ * @see device_get_display_numbers()
+ * @see device_set_brightness()
+ * @see device_get_max_brightness()
+ */
+int device_get_brightness(int display_index, int *brightness);
+
+/**
+ * @brief Sets the display brightness value. 
+ *
+ * @param[in] display_index	The index of the display, it be greater than or equal to 0 and less than \n
+ *                          the number of displays returned by device_get_display_numbers().\n
+ *                          The index zero is always assigned to the main display.
+ * @param[in] brightness	The new brightness value to set \n
+ *							The maximum value can be represented by device_get_max_brightness()
+ * 
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER  Invalid parameter
+ * @retval #DEVICE_ERROR_OPERATION_FAILED   Operation failed
+ *
+ * @see device_get_display_numbers()
+ * @see device_get_max_brightness()
+ * @see device_get_brightness()
+ */
+int device_set_brightness(int display_index, int brightness);
+
+/**
+ * @brief Gets the maximum brightness value that can be set. 
+ *
+ * @param[in] display_index	The index of the display, it be greater than or equal to 0 and less than \n
+ *                          the number of displays returned by device_get_display_numbers().\n
+ *                          The index zero is always assigned to the main display.
+ * @param[out] max_brightness	The maximum brightness value of the display
+ *
+ * @return 0 on success, otherwise a negative error value.
+ * @retval #DEVICE_ERROR_NONE				Successful
+ * @retval #DEVICE_ERROR_INVALID_PARAMETER	Invalid parameter
+ * @retval #DEVICE_ERROR_OPERATION_FAILED	Operation failed
+ *
+ * @see device_get_display_numbers()
+ * @see device_set_brightness()
+ * @see device_get_brightness()
+ */
+int device_get_max_brightness(int display_index, int *max_brightness);
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // __TIZEN_SYSTEM_DEVICE_H__
+
diff --git a/packaging/capi-system-device.spec b/packaging/capi-system-device.spec
new file mode 100644
index 0000000..b6645e5
--- /dev/null
+++ b/packaging/capi-system-device.spec
@@ -0,0 +1,53 @@
+Name:       capi-system-device
+Summary:    A Device library in TIZEN C API
+Version:    0.0.1
+Release:    1
+Group:      TO_BE/FILLED_IN
+License:    TO BE FILLED IN
+Source0:    %{name}-%{version}.tar.gz
+BuildRequires:  cmake
+BuildRequires:  pkgconfig(glib-2.0)
+BuildRequires:  pkgconfig(devman)
+BuildRequires:  pkgconfig(capi-base-common)
+Requires(post): /sbin/ldconfig  
+Requires(postun): /sbin/ldconfig
+
+%description
+
+
+%package devel
+Summary:  A Device library in TIZEN C API (Development)
+Group:    TO_BE/FILLED_IN
+Requires: %{name} = %{version}-%{release}
+
+%description devel
+
+
+
+%prep
+%setup -q
+
+
+%build
+cmake . -DCMAKE_INSTALL_PREFIX=/usr
+
+
+make %{?jobs:-j%jobs}
+
+%install
+rm -rf %{buildroot}
+%make_install
+
+%post -p /sbin/ldconfig
+
+%postun -p /sbin/ldconfig
+
+
+%files
+%{_libdir}/libcapi-system-device.so
+
+%files devel
+%{_includedir}/system/device.h
+%{_libdir}/pkgconfig/*.pc
+
+
diff --git a/src/device.c b/src/device.c
new file mode 100644
index 0000000..2dc5951
--- /dev/null
+++ b/src/device.c
@@ -0,0 +1,236 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License. 
+ */
+
+
+
+#define LOG_TAG "TIZEN_SYSTEM_DEVICE"
+
+#include <string.h>
+#include <stdio.h>
+#include <devman.h>
+#include <device.h>
+#include <errno.h>
+#include <dlog.h>
+#include <vconf.h>
+
+#define _MSG_DEVICE_ERROR_INVALID_PARAMETER "Invalid parameter"
+#define _MSG_DEVICE_ERROR_OPERATION_FAILED "Operation failed"
+
+#define RETURN_ERR_MSG(err_code, msg) \
+    do { \
+        LOGE("[%s] "_MSG_##err_code"(0x%08x) : %s", __FUNCTION__, err_code, msg); \
+        return err_code; \
+    }while(0)
+
+#define RETURN_ERR(err_code) \
+    do { \
+        LOGE("[%s] "_MSG_##err_code"(0x%08x)", __FUNCTION__, err_code); \
+        return err_code; \
+    }while(0)
+
+static int _display[] = {
+    DEV_DISPLAY_0,
+    DEV_DISPLAY_1,
+};
+
+int device_get_display_numbers(int* device_number)
+{
+    if(device_number == NULL)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+    *device_number = device_get_display_count();
+    if(*device_number < 0)
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+
+    return DEVICE_ERROR_NONE;
+}
+
+int device_battery_get_percent( int* percent )
+{
+    if (percent == NULL) RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+	int pct = device_get_battery_pct();
+	if(pct < 0) {
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }else{
+		*percent = pct;
+    }
+	return DEVICE_ERROR_NONE;
+}
+
+int device_battery_is_full( bool* full )
+{
+    if (full == NULL) RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+    int f = device_get_battery_pct();
+	if(f < 0) {
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }
+	else
+		*full = f == 100 ? true : false;
+
+	return DEVICE_ERROR_NONE;
+}
+
+int device_get_brightness(int disp_idx, int* value)
+{
+	int val, disp, max_id;
+
+    if(value == NULL) RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+    if(device_get_display_numbers(&max_id) < 0)
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+
+    if(disp_idx < 0 || disp_idx >= max_id)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+    disp = _display[disp_idx];
+
+    if(value == NULL)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+	val = device_get_display_brt(disp);
+	
+	if(val < 0) {
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }
+	else
+		*value = val;
+
+	return DEVICE_ERROR_NONE;
+}
+
+int device_set_brightness(int disp_idx, int new_value)
+{
+    int max_value, val;
+	int disp, max_id;
+    
+    if(device_get_display_numbers(&max_id) < 0)
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+
+    if(disp_idx < 0 || disp_idx >= max_id)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+    disp = _display[disp_idx];
+
+    if(new_value < 0)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+    device_get_max_brightness(disp, &max_value);
+
+    if(new_value > max_value)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+	val = device_set_display_brt(disp, new_value);
+	if(val < 0) {
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }
+	return DEVICE_ERROR_NONE;
+}
+
+int device_get_max_brightness(int disp_idx, int* max_value)
+{
+	int val, disp, max_id;
+    
+    if(device_get_display_numbers(&max_id) < 0)
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+
+    if(disp_idx < 0 || disp_idx >= max_id)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+	
+    disp = _display[disp_idx];
+
+    if(max_value == NULL)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+	val = device_get_max_brt(disp);
+	
+	if(val < 0) {
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }
+	else
+		*max_value = val;
+
+	return DEVICE_ERROR_NONE;
+}
+
+int device_battery_is_charging(bool *charging)
+{
+    // VCONFKEY_SYSMAN_BATTERY_CHARGE_NOW
+    int value, err;
+    
+    if(charging == NULL){
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+    }
+
+    err  = vconf_get_int(VCONFKEY_SYSMAN_BATTERY_CHARGE_NOW, &value);
+
+    if(err <0){
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }
+    if(value == 1){
+        *charging = true;
+    }else if(value == 0){
+        *charging = false;
+    }else{
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }
+    return DEVICE_ERROR_NONE;
+}
+
+static device_battery_cb changed_callback = NULL;
+static void* changed_callback_user_data = NULL;
+
+static void battery_changed_inside_cb(keynode_t* key, void* user_data)
+{
+    char* keyname = vconf_keynode_get_name(key);
+
+    if(keyname != NULL && changed_callback != NULL && strcmp(keyname, VCONFKEY_SYSMAN_BATTERY_CAPACITY) == 0){
+        int percent = 0;
+        if(vconf_get_int(VCONFKEY_SYSMAN_BATTERY_CAPACITY, &percent) == 0){
+            changed_callback(percent, changed_callback_user_data);
+        }
+    }
+}
+
+int device_battery_set_cb(device_battery_cb callback, void* user_data)
+{
+    // VCONFKEY_SYSMAN_BATTERY_CAPACITY
+    int err;
+    if(callback == NULL)
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+
+    changed_callback = callback;
+    changed_callback_user_data = user_data;
+
+    err = vconf_notify_key_changed(VCONFKEY_SYSMAN_BATTERY_CAPACITY, battery_changed_inside_cb, NULL);
+    if(err < 0){
+        RETURN_ERR(DEVICE_ERROR_INVALID_PARAMETER);
+    }
+
+    return DEVICE_ERROR_NONE;
+}
+int device_battery_unset_cb(void)
+{
+    int err = vconf_ignore_key_changed(VCONFKEY_SYSMAN_BATTERY_CAPACITY, battery_changed_inside_cb);
+    if(err < 0){
+        RETURN_ERR(DEVICE_ERROR_OPERATION_FAILED);
+    }
+    changed_callback = NULL;
+    changed_callback_user_data = NULL;
+
+    return DEVICE_ERROR_NONE;
+}