X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fos.h;h=770d76e02f7e1aa02219ec61aa71cce0ce0fc5a4;hb=92832045c54586e9dffa082ff8cd8c2ef6040757;hp=bd1096eb8b3189cc574a956dd75087d9b0681e32;hpb=4c30d18ed38c5ae84ed91da0f9d1ba4c9e83bffc;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/os.h b/include/os.h
index bd1096e..770d76e 100644
--- a/include/os.h
+++ b/include/os.h
@@ -52,6 +52,14 @@ off_t os_lseek(int fd, off_t offset, int whence);
 #define OS_SEEK_END	2
 
 /**
+ * os_filesize() - Calculate the size of a file
+ *
+ * @fd:		File descriptor as returned by os_open()
+ * Return:	file size or negative error code
+ */
+int os_filesize(int fd);
+
+/**
  * Access to the OS open() system call
  *
  * @pathname:	Pathname of file to open
@@ -327,9 +335,12 @@ int os_jump_to_image(const void *dest, int size);
  * @fname:	place to put full path to U-Boot
  * @maxlen:	maximum size of @fname
  * @use_img:	select the 'u-boot.img' file instead of the 'u-boot' ELF file
+ * @cur_prefix:	prefix of current executable, e.g. "spl" or "tpl"
+ * @next_prefix: prefix of executable to find, e.g. "spl" or ""
  * Return:	0 if OK, -NOSPC if the filename is too large, -ENOENT if not found
  */
-int os_find_u_boot(char *fname, int maxlen, bool use_img);
+int os_find_u_boot(char *fname, int maxlen, bool use_img,
+		   const char *cur_prefix, const char *next_prefix);
 
 /**
  * os_spl_to_uboot() - Run U-Boot proper
@@ -395,6 +406,19 @@ int os_write_file(const char *name, const void *buf, int size);
  */
 int os_read_file(const char *name, void **bufp, int *sizep);
 
+/**
+ * os_map_file() - Map a file from the host filesystem into memory
+ *
+ * This can be useful when to provide a backing store for an emulated device
+ *
+ * @pathname:	File pathname to map
+ * @os_flags:	Flags, like OS_O_RDONLY, OS_O_RDWR
+ * @bufp:	Returns buffer containing the file
+ * @sizep:	Returns size of data
+ * Return:	0 if OK, -ve on error
+ */
+int os_map_file(const char *pathname, int os_flags, void **bufp, int *sizep);
+
 /*
  * os_find_text_base() - Find the text section in this running process
  *