Use only hal-rootstrap package to buildaccepted/tizen/unified/x/20240705.012359accepted/tizen/unified/dev/20240708.001623accepted/tizen/unified/20240704.075638

As support hal-abi-versioning, the hal-backend package should be built
using only the hal-rootstrap.
Other packages not included in the hal-roostrap have been deleted to remove dependencies.
util is added to replace functions of dlog and libsyscommon package.

Change-Id: I828813ef12dc695ddf66885269df5aabf2cd8717
Signed-off-by: Yunhee Seo <yuni.seo@samsung.com>

18 files changed, 280 insertions, 64 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f8bf84e..391daa1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,10 +5,19 @@ SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS} -Wall -Werror")
 
+INCLUDE(FindPkgConfig)
+pkg_check_modules(hal-backend-device-rpi_pkgs REQUIRED hal-rootstrap)
+
+FOREACH(flag ${hal-backend-device-rpi_pkgs_CFLAGS})
+	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
+ENDFOREACH(flag)
+
 IF(ENABLE_DLOG STREQUAL on)
 	ADD_DEFINITIONS("-DFEATURE_DLOG")
 ENDIF()
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.Apache-2.0 DESTINATION ${HAL_LICENSE_DIR}/${PROJECT_NAME})
 
 ADD_SUBDIRECTORY(hw/board)
diff --git a/hw/board/CMakeLists.txt b/hw/board/CMakeLists.txt
index 5234091..358723c 100644
--- a/hw/board/CMakeLists.txt
+++ b/hw/board/CMakeLists.txt
@@ -3,11 +3,10 @@ PROJECT(hal-backend-device-board C)
 
 SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INCLUDE(FindPkgConfig)
-pkg_check_modules(hal-backend-device-board_pkgs REQUIRED
-	hal-backend-device-common
-	libsyscommon
-	)
+pkg_check_modules(hal-backend-device-board_pkgs REQUIRED hal-rootstrap)
 
 FOREACH(flag ${hal-backend-device-board_pkgs_CFLAGS})
 	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
@@ -16,6 +15,6 @@ ENDFOREACH(flag)
 SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
 
-ADD_LIBRARY(${PROJECT_NAME} MODULE board.c)
+ADD_LIBRARY(${PROJECT_NAME} MODULE board.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${hal-backend-device-board_pkgs_LDFLAGS})
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
diff --git a/hw/board/board.c b/hw/board/board.c
index caa213e..3e9233a 100644
--- a/hw/board/board.c
+++ b/hw/board/board.c
@@ -26,8 +26,7 @@
 #include <unistd.h>
 #include <ctype.h>
 
-#include </hal/include/device/hal-backend-common.h>
-#include <libsyscommon/file.h>
+#include "util.h"
 
 #define INFORM_MNT_PATH			"/mnt/inform"
 #define PARTITION_AB_PATH		INFORM_MNT_PATH"/partition-ab.info"
@@ -73,7 +72,7 @@ static int clear_boot_mode(void)
 		return -ferror;
 	}
 
-	return sys_set_str(REBOOT_PARAM_PATH, BOOT_MODE_NORMAL);
+	return sysfs_write_str(REBOOT_PARAM_PATH, BOOT_MODE_NORMAL);
 }
 
 static int get_boot_mode(char *buffer, const int max_len)
@@ -83,7 +82,7 @@ static int get_boot_mode(char *buffer, const int max_len)
 
 	snprintf(scan_format, sizeof(scan_format), "bootmode=%%%ds", max_len - 1);
 
-	ret = syscommon_parse_cmdline_scanf(scan_format, buffer);
+	ret = parse_cmdline_scanf(scan_format, buffer);
 
 	if (ret <= 0) {
 		return -ENOENT;
@@ -99,7 +98,7 @@ static int get_boot_mode(char *buffer, const int max_len)
 
 static int get_current_partition(char *partition_ab)
 {
-	int ret_parse = syscommon_parse_cmdline_scanf("partition_ab=%c", partition_ab);
+	int ret_parse = parse_cmdline_scanf("partition_ab=%c", partition_ab);
 
 	if (ret_parse <= 0) {
 		return -ENOENT;
@@ -136,22 +135,22 @@ static int switch_partition(char partition_ab)
 		return -EINVAL;
 	}
 
-	return sys_write_buf(PARTITION_AB_PATH, next_partition_ab);
+	return sysfs_write_buf(PARTITION_AB_PATH, next_partition_ab);
 }
 
 static int set_partition_ab_cloned(void)
 {
-	return sys_write_buf(PARTITION_AB_CLONED_PATH, "1");
+	return sysfs_write_buf(PARTITION_AB_CLONED_PATH, "1");
 }
 
 static int clear_partition_ab_cloned(void)
 {
-	return sys_write_buf(PARTITION_AB_CLONED_PATH, "0");
+	return sysfs_write_buf(PARTITION_AB_CLONED_PATH, "0");
 }
 
 static int get_partition_ab_cloned(int *cloned)
 {
-	int ret_get_int = sys_get_int(PARTITION_AB_CLONED_PATH, cloned);
+	int ret_get_int = sysfs_read_int(PARTITION_AB_CLONED_PATH, cloned);
 
 	if (ret_get_int < 0) {
 		return ret_get_int;
@@ -198,7 +197,7 @@ static int set_partition_status(char partition_ab, const char *status)
 		return -ferror;
 	}
 
-	return sys_set_str(path, (char *)status);
+	return sysfs_write_str(path, (char *)status);
 }
 
 static int get_partition_status(char partition_ab, char *buffer, const int max_len)
@@ -227,7 +226,7 @@ static int get_partition_status(char partition_ab, char *buffer, const int max_l
 		return -EINVAL;
 	}
 
-	int res_get_str = sys_get_str(path, buffer, max_len);
+	int res_get_str = sysfs_read_str(path, buffer, max_len);
 	if (res_get_str < 0) {
 		return res_get_str;
 	}
@@ -258,12 +257,12 @@ static int set_upgrade_progress_status(int status)
 		return -ferror;
 	}
 
-	return sys_set_int(UPGRADE_PROGRESS_STATUS_PATH, status);
+	return sysfs_write_int(UPGRADE_PROGRESS_STATUS_PATH, status);
 }
 
 static int get_upgrade_progress_status(int *status)
 {
-	int ret_get_int = sys_get_int(UPGRADE_PROGRESS_STATUS_PATH, status);
+	int ret_get_int = sysfs_read_int(UPGRADE_PROGRESS_STATUS_PATH, status);
 
 	if (ret_get_int < 0) {
 		return ret_get_int;
@@ -289,7 +288,7 @@ static int set_upgrade_state(char *state)
 		return -ferror;
 	}
 
-	return sys_set_str(UPGRADE_STATE_PATH, state);
+	return sysfs_write_str(UPGRADE_STATE_PATH, state);
 }
 
 static void trim_str(char *str)
@@ -330,7 +329,7 @@ static int get_upgrade_state(char *buffer, const int max_len)
 	if (max_len < 1)
 		return -EINVAL;
 
-	ret = sys_get_str(UPGRADE_STATE_PATH, buffer, max_len - 1);
+	ret = sysfs_read_str(UPGRADE_STATE_PATH, buffer, max_len - 1);
 	if (ret < 0)
 		return ret;
 
diff --git a/hw/display/CMakeLists.txt b/hw/display/CMakeLists.txt
index 5fa6a8e..ef0b4c7 100644
--- a/hw/display/CMakeLists.txt
+++ b/hw/display/CMakeLists.txt
@@ -3,8 +3,10 @@ PROJECT(hal-backend-device-display C)
 
 SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INCLUDE(FindPkgConfig)
-pkg_check_modules(hal-backend-device-display_pkgs REQUIRED hal-backend-device-common libsyscommon)
+pkg_check_modules(hal-backend-device-display_pkgs REQUIRED hal-rootstrap)
 
 FOREACH(flag ${hal-backend-device-display_pkgs_CFLAGS})
 	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
@@ -14,13 +16,13 @@ SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
 
 SET(HAL_BACKEND_DEVICE_DISPLAY_RPI3 ${PROJECT_NAME}.rpi3)
-ADD_LIBRARY(${HAL_BACKEND_DEVICE_DISPLAY_RPI3} MODULE display.c)
+ADD_LIBRARY(${HAL_BACKEND_DEVICE_DISPLAY_RPI3} MODULE display.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_COMPILE_DEFINITIONS(${HAL_BACKEND_DEVICE_DISPLAY_RPI3} PUBLIC RPI3)
 TARGET_LINK_LIBRARIES(${HAL_BACKEND_DEVICE_DISPLAY_RPI3} ${hal-backend-device-display_pkgs_LDFLAGS})
 INSTALL(TARGETS ${HAL_BACKEND_DEVICE_DISPLAY_RPI3} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
 
 SET(HAL_BACKEND_DEVICE_DISPLAY_RPI4 ${PROJECT_NAME}.rpi4)
-ADD_LIBRARY(${HAL_BACKEND_DEVICE_DISPLAY_RPI4} MODULE display.c)
+ADD_LIBRARY(${HAL_BACKEND_DEVICE_DISPLAY_RPI4} MODULE display.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_COMPILE_DEFINITIONS(${HAL_BACKEND_DEVICE_DISPLAY_RPI4} PUBLIC RPI4)
 TARGET_LINK_LIBRARIES(${HAL_BACKEND_DEVICE_DISPLAY_RPI4} ${hal-backend-device-display_pkgs_LDFLAGS})
 INSTALL(TARGETS ${HAL_BACKEND_DEVICE_DISPLAY_RPI4} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
diff --git a/hw/display/display.c b/hw/display/display.c
index 059f433..e4c9fe0 100644
--- a/hw/display/display.c
+++ b/hw/display/display.c
@@ -25,9 +25,8 @@
 
 #include <hal/hal-device-display-interface.h>
 #include <hal/hal-common-interface.h>
-#include <libsyscommon/file.h>
 
-#include </hal/include/device/hal-backend-common.h>
+#include "util.h"
 
 #if defined(RPI3)
 #define BACKLIGHT_PATH  "/sys/class/backlight/rpi_backlight"
@@ -46,7 +45,7 @@ static int display_get_max_brightness(int *val)
 		return -EINVAL;
 
 	if (max < 0) {
-		r = sys_get_int(BACKLIGHT_PATH"/max_brightness", &max);
+		r = sysfs_read_int(BACKLIGHT_PATH"/max_brightness", &max);
 		if (r < 0)
 			return -ENOTSUP;
 	}
@@ -64,7 +63,7 @@ static int display_get_brightness(int *brightness)
 		return -EINVAL;
 	}
 
-	r = sys_get_int(BACKLIGHT_PATH"/brightness", &v);
+	r = sysfs_read_int(BACKLIGHT_PATH"/brightness", &v);
 	if (r < 0) {
 		_E("fail to get brightness (errno:%d)", r);
 		return -ENOTSUP;
@@ -89,7 +88,7 @@ static int display_set_brightness(int brightness)
 		return -EINVAL;
 	}
 
-	r = sys_set_int(BACKLIGHT_PATH"/brightness", brightness);
+	r = sysfs_write_int(BACKLIGHT_PATH"/brightness", brightness);
 	if (r < 0) {
 		_E("fail to set brightness (errno:%d)", r);
 		return r;
diff --git a/hw/haptic/CMakeLists.txt b/hw/haptic/CMakeLists.txt
index d3b5d3c..c04a362 100644
--- a/hw/haptic/CMakeLists.txt
+++ b/hw/haptic/CMakeLists.txt
@@ -3,12 +3,10 @@ PROJECT(hal-backend-device-haptic C)
 
 SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INCLUDE(FindPkgConfig)
-pkg_check_modules(haptic_pkgs REQUIRED
-		hal-backend-device-common
-		glib-2.0
-		libsyscommon
-		capi-system-peripheral-io)
+pkg_check_modules(haptic_pkgs REQUIRED hal-rootstrap)
 
 FOREACH(flag ${haptic_pkgs_CFLAGS})
 	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
@@ -17,7 +15,7 @@ ENDFOREACH(flag)
 SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
 
-ADD_LIBRARY(${PROJECT_NAME} MODULE gpio.c)
+ADD_LIBRARY(${PROJECT_NAME} MODULE gpio.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${haptic_pkgs_LDFLAGS})
 
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
diff --git a/hw/haptic/gpio.c b/hw/haptic/gpio.c
index ecd82a5..81f9bdb 100644
--- a/hw/haptic/gpio.c
+++ b/hw/haptic/gpio.c
@@ -19,10 +19,9 @@
 #include <stdlib.h>
 #include <glib.h>
 #include <peripheral_io.h>
-#include <libsyscommon/list.h>
 #include <hal/hal-device-haptic-interface.h>
 
-#include </hal/include/device/hal-backend-common.h>
+#include "util.h"
 
 #define GPIO_I2C_BUS_INDEX		1
 #define MAX_HAPIC				1
@@ -85,7 +84,7 @@ static bool find_from_list(int handle)
 {
 	GList *elem;
 
-	elem = SYS_G_LIST_FIND(handle_list, (gpointer)(long)handle);
+	elem = g_list_find(handle_list, (gpointer)(long)handle);
 	if (elem)
 		return true;
 
@@ -140,7 +139,7 @@ static int gpio_haptic_open_device(int *handle)
 		return -EINVAL;
 
 	/* if it is the first element */
-	n = SYS_G_LIST_LENGTH(handle_list);
+	n = g_list_length(handle_list);
 	if (n == 0) {
 		_I("Peripheral Device Open.");
 		if (device_handle == NULL) {
@@ -156,13 +155,13 @@ static int gpio_haptic_open_device(int *handle)
 
 	while (found != true) {
 		++unique_number;
-		elem = SYS_G_LIST_FIND(handle_list, (gpointer)(long)unique_number);
+		elem = g_list_find(handle_list, (gpointer)(long)unique_number);
 		if (!elem)
 			found = true;
 	}
 
 	/* add info to local list */
-	SYS_G_LIST_APPEND(handle_list, (gpointer)(long)unique_number);
+	handle_list = g_list_append(handle_list, (gpointer)(long)unique_number);
 
 	*handle = unique_number;
 	return 0;
@@ -190,10 +189,10 @@ static int gpio_haptic_close_device(int handle)
 		_I("Already stopped or failed to stop effect: %d", r);
 
 	_D("Handle(%d) is closed and timer deleted.", handle);
-	SYS_G_LIST_REMOVE(handle_list, (gpointer)(long)handle);
+	handle_list = g_list_remove(handle_list, (gpointer)(long)handle);
 
 	/* if it is the last element */
-	n = SYS_G_LIST_LENGTH(handle_list);
+	n = g_list_length(handle_list);
 	if (n == 0) {
 		_I("Peripheral Device Close.");
 		if (device_handle != NULL) {
diff --git a/hw/led/CMakeLists.txt b/hw/led/CMakeLists.txt
index c0e1583..5571f02 100644
--- a/hw/led/CMakeLists.txt
+++ b/hw/led/CMakeLists.txt
@@ -3,8 +3,10 @@ PROJECT(hal-backend-device-led  C)
 
 SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INCLUDE(FindPkgConfig)
-pkg_check_modules(hal-backend-device-led_pkgs REQUIRED hal-backend-device-common glib-2.0 capi-system-peripheral-io)
+pkg_check_modules(hal-backend-device-led_pkgs REQUIRED hal-rootstrap)
 
 FOREACH(flag ${hal-backend-device-led_pkgs_CFLAGS})
 	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
@@ -13,6 +15,6 @@ ENDFOREACH(flag)
 SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
 
-ADD_LIBRARY(${PROJECT_NAME} MODULE led.c)
+ADD_LIBRARY(${PROJECT_NAME} MODULE led.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${hal-backend-device-led_pkgs_LDFLAGS})
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
diff --git a/hw/led/led.c b/hw/led/led.c
index 92bb67b..e07ab7d 100644
--- a/hw/led/led.c
+++ b/hw/led/led.c
@@ -23,10 +23,10 @@
 #include <hal/hal-device-led-interface.h>
 #include <hal/hal-common-interface.h>
 
-#include </hal/include/device/hal-backend-common.h>
-
 #include <peripheral_io.h>
 
+#include "util.h"
+
 #define GET_BRIGHTNESS(val)	 (((val) >> 24) & 0xFF)
 
 #define GET_TYPE(a)	   (((a) >> 24) & 0xFF)
diff --git a/hw/memory/CMakeLists.txt b/hw/memory/CMakeLists.txt
index a35248a..77b4f9c 100644
--- a/hw/memory/CMakeLists.txt
+++ b/hw/memory/CMakeLists.txt
@@ -3,8 +3,10 @@ PROJECT(hal-backend-device-memory C)
 
 SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INCLUDE(FindPkgConfig)
-pkg_check_modules(hal-backend-device-memory_pkgs REQUIRED dlog)
+pkg_check_modules(hal-backend-device-memory_pkgs REQUIRED hal-rootstrap)
 
 FOREACH(flag ${hal-backend-device-memory_pkgs_CFLAGS})
 	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
@@ -13,6 +15,6 @@ ENDFOREACH(flag)
 SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
 
-ADD_LIBRARY(${PROJECT_NAME} MODULE memory.c)
+ADD_LIBRARY(${PROJECT_NAME} MODULE memory.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${hal-backend-device-memory_pkgs_LDFLAGS})
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
diff --git a/hw/memory/memory.c b/hw/memory/memory.c
index 3347d23..28f99c2 100644
--- a/hw/memory/memory.c
+++ b/hw/memory/memory.c
@@ -21,7 +21,7 @@
 #include <hal/hal-device-memory-interface.h>
 #include <hal/hal-common-interface.h>
 
-#include </hal/include/device/hal-backend-common.h>
+#include "util.h"
 
 #define GEM_INFO_PATH     "/sys/kernel/debug/dri/0/gem_info"
 #define GEM_INFO_PATH1    "/sys/kernel/debug/dri/1/gem_info"
diff --git a/hw/thermal/CMakeLists.txt b/hw/thermal/CMakeLists.txt
index 197833c..ee95e00 100644
--- a/hw/thermal/CMakeLists.txt
+++ b/hw/thermal/CMakeLists.txt
@@ -3,8 +3,10 @@ PROJECT(hal-backend-device-thermal C)
 
 SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INCLUDE(FindPkgConfig)
-pkg_check_modules(hal-backend-device-thermal_pkgs REQUIRED hal-backend-device-common glib-2.0)
+pkg_check_modules(hal-backend-device-thermal_pkgs REQUIRED hal-rootstrap)
 
 FOREACH(flag ${hal-backend-device-thermal_pkgs_CFLAGS})
 	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
@@ -13,6 +15,6 @@ ENDFOREACH(flag)
 SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
 
-ADD_LIBRARY(${PROJECT_NAME} MODULE thermal.c)
+ADD_LIBRARY(${PROJECT_NAME} MODULE thermal.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${hal-backend-device-thermal_pkgs_LDFLAGS})
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
diff --git a/hw/thermal/thermal.c b/hw/thermal/thermal.c
index fb59d28..91c36c0 100644
--- a/hw/thermal/thermal.c
+++ b/hw/thermal/thermal.c
@@ -26,7 +26,7 @@
 #include <hal/hal-device-thermal-interface.h>
 #include <hal/hal-common-interface.h>
 
-#include </hal/include/device/hal-backend-common.h>
+#include "util.h"
 
 #define AP_PATH		"/sys/class/thermal/thermal_zone0/temp"
 
diff --git a/hw/touchscreen/CMakeLists.txt b/hw/touchscreen/CMakeLists.txt
index 207d23f..d9b00fa 100644
--- a/hw/touchscreen/CMakeLists.txt
+++ b/hw/touchscreen/CMakeLists.txt
@@ -3,8 +3,10 @@ PROJECT(hal-backend-device-touchscreen C)
 
 SET(PREFIX ${CMAKE_INSTALL_PREFIX})
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
 INCLUDE(FindPkgConfig)
-pkg_check_modules(hal-backend-device-touchscreen_pkgs REQUIRED hal-backend-device-common libsyscommon)
+pkg_check_modules(hal-backend-device-touchscreen_pkgs REQUIRED hal-rootstrap)
 
 FOREACH(flag ${hal-backend-device-touchscreen_pkgs_CFLAGS})
 	SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} ${flag}")
@@ -13,6 +15,6 @@ ENDFOREACH(flag)
 SET(EXTRA_CFLAGS "${EXTRA_CFLAGS} -fvisibility=hidden")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
 
-ADD_LIBRARY(${PROJECT_NAME} MODULE touchscreen.c)
+ADD_LIBRARY(${PROJECT_NAME} MODULE touchscreen.c ${CMAKE_SOURCE_DIR}/src/util.c)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${hal-backend-device-touchscreen_pkgs_LDFLAGS})
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION ${HAL_LIB_DIR} COMPONENT RuntimeLibraries)
diff --git a/hw/touchscreen/touchscreen.c b/hw/touchscreen/touchscreen.c
index cf73293..32bd1ea 100644
--- a/hw/touchscreen/touchscreen.c
+++ b/hw/touchscreen/touchscreen.c
@@ -27,9 +27,8 @@
 
 #include <hal/hal-device-touchscreen-interface.h>
 #include <hal/hal-common-interface.h>
-#include <libsyscommon/file.h>
 
-#include </hal/include/device/hal-backend-common.h>
+#include "util.h"
 
 #define TOUCHSCREEN_CON_FILE	"/sys/devices/platform/rpi_ft5406/enable"
 
@@ -48,7 +47,7 @@ static int touchscreen_get_state(hal_device_touchscreen_state_e *state)
 	if (access(TOUCHSCREEN_CON_FILE, F_OK) != 0)
 		return -ENODEV;
 
-	ret = sys_get_int(TOUCHSCREEN_CON_FILE, &val);
+	ret = sysfs_read_int(TOUCHSCREEN_CON_FILE, &val);
 	if (ret < 0) {
 		_E("Failed to get touchscreen state (%d)", ret);
 		return ret;
@@ -90,7 +89,7 @@ static int touchscreen_set_state(hal_device_touchscreen_state_e state)
 		return -EINVAL;
 	}
 
-	ret = sys_set_int(TOUCHSCREEN_CON_FILE, val);
+	ret = sysfs_write_int(TOUCHSCREEN_CON_FILE, val);
 	if (ret < 0)
 		_E("Failed to change touchscreen state (%d)", ret);
 
diff --git a/include/util.h b/include/util.h
new file mode 100644
index 0000000..abec175
--- /dev/null
+++ b/include/util.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2024 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.
+ */
+
+#ifdef FEATURE_DLOG
+	#define LOG_TAG "HAL_BACKEND_DEVICE_RPI"
+	#include <dlog.h>
+	#define _D(fmt, args...)	dlog_print(DLOG_DEBUG, LOG_TAG, fmt, ##args)
+	#define _I(fmt, args...)	dlog_print(DLOG_INFO, LOG_TAG, fmt, ##args)
+	#define _W(fmt, args...)	dlog_print(DLOG_WARN, LOG_TAG, fmt, ##args)
+	#define _E(fmt, args...)	dlog_print(DLOG_ERROR, LOG_TAG, fmt, ##args)
+#else
+	#define _D(x, ...)
+	#define _I(x, ...)
+	#define _W(x, ...)
+	#define _E(x, ...)
+#endif
+
+#define EXPORT __attribute__ ((visibility("default")))
+
+#define ARRAY_SIZE(name) (sizeof(name)/sizeof(name[0]))
+#define MAX_BUF_SIZE	255
+
+int sysfs_read_int(char *path, int *val);
+int sysfs_read_str(char *path, char *str, int len);
+int sysfs_write_buf(char *path, char *buf);
+int sysfs_write_int(char *path, int val);
+int sysfs_write_str(char *path, char *str);
+
+/**
+ * @brief Parse format from /proc/cmdline
+ *
+ * @param[in] format Format string
+ * @param[out] ... Variable argument
+ *
+ * @return zero if cannot read else the number of matched and assigned items
+ */
+int parse_cmdline_scanf(const char *format, ...);
diff --git a/packaging/hal-backend-device-rpi.spec b/packaging/hal-backend-device-rpi.spec
index 67bb5c3..1e108d9 100644
--- a/packaging/hal-backend-device-rpi.spec
+++ b/packaging/hal-backend-device-rpi.spec
@@ -10,12 +10,7 @@ ExclusiveArch:  %{arm} aarch64
 Requires(post): /sbin/ldconfig
 Requires(postun): /sbin/ldconfig
 BuildRequires:  cmake
-BuildRequires:  pkgconfig(glib-2.0)
-BuildRequires:  pkgconfig(capi-system-peripheral-io)
-BuildRequires:  pkgconfig(hal-api-common)
-BuildRequires:  pkgconfig(hal-api-device)
-BuildRequires:  pkgconfig(libsyscommon)
-BuildRequires:  pkgconfig(hal-backend-device-common)
+BuildRequires:  pkgconfig(hal-rootstrap)
 
 %description
 Device HAL backend drivers for Raspberry Pi targets
diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..e2abf4b
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2024 Samsung Electronics Co., Ltd.
+ *
+ * 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.
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "util.h"
+
+static int sysfs_read_buf(char *path, char *buf, int len)
+{
+	int r, fd;
+
+	if ((!path) || (!buf) || (len < 0))
+		return -EINVAL;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1)
+		return -ENOENT;
+
+	r = read(fd, buf, len);
+	close(fd);
+
+	if ((r < 0) || (r > len))
+		return -EIO;
+
+	/* Replace '\n' with space (ascii code is 32) */
+	buf[strcspn(buf, "\n")] = (char)32;
+	buf[r] = '\0';
+
+	return 0;
+}
+
+int sysfs_write_buf(char *path, char *buf)
+{
+	int w, fd;
+
+	if ((!path) || (!buf))
+		return -EINVAL;
+
+	fd = open(path, O_WRONLY);
+	if (fd == -1)
+		return -ENOENT;
+
+	w = write(fd, buf, strlen(buf));
+	close(fd);
+
+	if (w < 0)
+		return -EIO;
+
+	return 0;
+}
+
+int sysfs_read_int(char *path, int *val)
+{
+	char buf[MAX_BUF_SIZE + 1];
+	int r;
+
+	if ((!path) || (!val))
+		return -EINVAL;
+
+	r = sysfs_read_buf(path, buf, MAX_BUF_SIZE);
+	if (r < 0)
+		return r;
+
+	*val = atoi(buf);
+	return 0;
+}
+
+int sysfs_read_str(char *path, char *str, int len)
+{
+	int r;
+
+	if ((!path) || (!str) || (len <= 0))
+		return -EINVAL;
+
+	r = sysfs_read_buf(path, str, len);
+	if (r < 0)
+		return r;
+
+	return 0;
+}
+
+int sysfs_write_int(char *path, int val)
+{
+	char buf[MAX_BUF_SIZE + 1];
+	int w;
+
+	if (!path)
+		return -EINVAL;
+
+	snprintf(buf, MAX_BUF_SIZE, "%d", val);
+	w = sysfs_write_buf(path, buf);
+	if (w < 0)
+		return w;
+
+	return 0;
+}
+
+int sysfs_write_str(char *path, char *str)
+{
+	int w;
+
+	if ((!path) || (!str))
+		return -EINVAL;
+
+	w = sysfs_write_buf(path, str);
+	if (w < 0)
+		return w;
+
+	return 0;
+}
+
+int parse_cmdline_scanf(const char *format, ...)
+{
+	FILE *fp = NULL;
+	char *token = NULL;
+	size_t len = 0;
+	va_list ap;
+	int ret = 0;
+	char buffer[MAX_BUF_SIZE + 1];
+
+	fp = fopen("/proc/cmdline", "r");
+	if (!fp)
+		return 0;
+
+	va_start(ap, format);
+
+	while (getdelim(&token, &len, ' ', fp) != EOF) {
+		if (len > MAX_BUF_SIZE)
+			len = MAX_BUF_SIZE;
+		strncpy(buffer, token, len);
+		buffer[MAX_BUF_SIZE] = '\0';
+		ret = vsscanf(buffer, format, ap);
+		memset(buffer, 0, sizeof(buffer));
+		if (ret > 0)
+			break;
+	}
+
+	free(token);
+	va_end(ap);
+	fclose(fp);
+
+	return ret;
+}
\ No newline at end of file