X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Ffat.h;h=bdeda95e6debebad99523451efdcc14f584d7e44;hb=002e91087c817f8281fccee327e0d8e98c691a2f;hp=83cd90017e56a069eb9a72a4ba5c372ee1790de3;hpb=89191d626793490b579e1d36e7d7a4464a20f9f6;p=oweals%2Fu-boot.git

diff --git a/include/fat.h b/include/fat.h
index 83cd90017e..bdeda95e6d 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -128,10 +128,14 @@ typedef struct volume_info
 	/* Boot sign comes last, 2 bytes */
 } volume_info;
 
+/* see dir_entry::lcase: */
+#define CASE_LOWER_BASE	8	/* base (name) is lower case */
+#define CASE_LOWER_EXT	16	/* extension is lower case */
+
 typedef struct dir_entry {
 	char	name[8],ext[3];	/* Name and extension */
 	__u8	attr;		/* Attribute bits */
-	__u8	lcase;		/* Case for base and extension */
+	__u8	lcase;		/* Case for name and ext (CASE_LOWER_x) */
 	__u8	ctime_ms;	/* Creation time, milliseconds */
 	__u16	ctime;		/* Creation time */
 	__u16	cdate;		/* Creation date */
@@ -173,12 +177,16 @@ typedef struct {
 	__u32	root_cluster;	/* First cluster of root dir for FAT32 */
 } fsdata;
 
-/* TODO clean up places that are open-coding this: */
 static inline u32 clust_to_sect(fsdata *fsdata, u32 clust)
 {
 	return fsdata->data_begin + clust * fsdata->clust_size;
 }
 
+static inline u32 sect_to_clust(fsdata *fsdata, u32 sect)
+{
+	return (sect - fsdata->data_begin) / fsdata->clust_size;
+}
+
 int file_fat_detectfs(void);
 int fat_exists(const char *filename);
 int fat_size(const char *filename, loff_t *size);