#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>
#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__ */