Use file library of libsyscommon

Change-Id: I48c998553b56c8ee70886b40c88afa7c26850aeb
Signed-off-by: Yunmi Ha <yunmi.ha@samsung.com>

3 files changed, 5 insertions, 110 deletions

diff --git a/hw/common/common.h b/hw/common/common.h
index 6f56601..37ce972 100644
--- a/hw/common/common.h
+++ b/hw/common/common.h
@@ -17,13 +17,6 @@
 #ifndef __HAL_BACKEND_COMMON_H__
 #define __HAL_BACKEND_COMMON_H__
 
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
 #ifdef FEATURE_DLOG
     #define LOG_TAG "HAL_BACKEND_DEVICE"
     #include <dlog.h>
@@ -42,106 +35,4 @@
 
 #define ARRAY_SIZE(name) (sizeof(name)/sizeof(name[0]))
 
-#define SHARED_H_BUF_MAX 255
-
-static inline int sys_read_buf(char *file, char *buf, int len)
-{
-	int fd, r;
-
-	if (!file || !buf || len < 0)
-		return -EINVAL;
-
-	fd = open(file, O_RDONLY);
-	if (fd == -1)
-		return -ENOENT;
-
-	r = read(fd, buf, len);
-	close(fd);
-	if ((r >= 0) && (r < len))
-		buf[r] = '\0';
-	else
-		return -EIO;
-
-	return 0;
-}
-
-static inline int sys_write_buf(char *file, char *buf)
-{
-	int fd, r;
-
-	if (!file || !buf)
-		return -EINVAL;
-
-	fd = open(file, O_WRONLY);
-	if (fd == -1)
-		return -EPERM;
-
-	r = write(fd, buf, strlen(buf));
-	close(fd);
-	if (r < 0)
-		return -EIO;
-
-	return 0;
-}
-
-static inline int sys_get_int(char *fname, int *val)
-{
-	char buf[SHARED_H_BUF_MAX];
-	int r;
-
-	if (!fname || !val)
-		return -EINVAL;
-
-	r = sys_read_buf(fname, buf, sizeof(buf));
-	if (r < 0)
-		return r;
-
-	*val = atoi(buf);
-	return 0;
-}
-
-static inline int sys_get_str(char *fname, char *str, int len)
-{
-	int r;
-
-	if (!fname || !str || len < 0)
-		return -EINVAL;
-
-	r = sys_read_buf(fname, str, len);
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-
-static inline int sys_set_int(char *fname, int val)
-{
-	char buf[SHARED_H_BUF_MAX];
-	int r;
-
-	if (!fname)
-		return -EINVAL;
-
-	snprintf(buf, sizeof(buf), "%d", val);
-	r = sys_write_buf(fname, buf);
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-
-static inline int sys_set_str(char *fname, char *val)
-{
-	int r;
-
-	if (!fname || !val)
-		return -EINVAL;
-
-	r = sys_write_buf(fname, val);
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-
-#endif /* __HAL_BACKEND_COMMON_H__ */
\ No newline at end of file
+#endif /* __HAL_BACKEND_COMMON_H__ */
diff --git a/hw/display/display.c b/hw/display/display.c
index 7796867..75ec356 100644
--- a/hw/display/display.c
+++ b/hw/display/display.c
@@ -25,6 +25,8 @@
 
 #include <hal/device/hal-display-interface.h>
 #include <hal/hal-common-interface.h>
+#include <libsyscommon/file.h>
+
 #include "common.h"
 
 #ifndef BACKLIGHT_PATH
diff --git a/hw/touchscreen/touchscreen.c b/hw/touchscreen/touchscreen.c
index a69e260..4f2d97a 100644
--- a/hw/touchscreen/touchscreen.c
+++ b/hw/touchscreen/touchscreen.c
@@ -26,6 +26,8 @@
 
 #include <hal/device/hal-touchscreen-interface.h>
 #include <hal/hal-common-interface.h>
+#include <libsyscommon/file.h>
+
 #include "common.h"
 
 #define INPUT_PATH      "/sys/class/input/"