fs/fat/fatwrite: Local variable as buffer to store dir_slot entries

[oweals/u-boot.git] / include / fat.h

diff --git a/include/fat.h b/include/fat.h
index 20ca3f3dca7df4476c5e94b9925815ba08bb6378..e38f3808af2524463507848b89044f37433f54e8 100644 (file)
--- a/include/fat.h
+++ b/include/fat.h
@@ -33,6 +33,8 @@
 #define FAT16BUFSIZE   (FATBUFSIZE/2)
 #define FAT32BUFSIZE   (FATBUFSIZE/4)
 
+/* Maximum number of entry for long file name according to spec */
+#define MAX_LFN_SLOT   20
 
 /* Filesystem identifiers */
 #define FAT12_SIGN     "FAT12   "
@@ -169,6 +171,7 @@ typedef struct {
        int     fatsize;        /* Size of FAT in bits */
        __u32   fatlength;      /* Length of FAT in sectors */
        __u16   fat_sect;       /* Starting sector of the FAT */
+       __u8    fat_dirty;      /* Set if fatbuf has been modified */
        __u32   rootdir_sect;   /* Start sector of root directory */
        __u16   sect_size;      /* Size of sectors in bytes */
        __u16   clust_size;     /* Size of clusters in sectors */
@@ -178,8 +181,8 @@ typedef struct {
 
 typedef int    (file_detectfs_func)(void);
 typedef int    (file_ls_func)(const char *dir);
-typedef long   (file_read_func)(const char *filename, void *buffer,
-                                unsigned long maxsize);
+typedef int    (file_read_func)(const char *filename, void *buffer,
+                                int maxsize);
 
 struct filesystem {
        file_detectfs_func      *detect;
@@ -198,15 +201,17 @@ int file_cd(const char *path);
 int file_fat_detectfs(void);
 int file_fat_ls(const char *dir);
 int fat_exists(const char *filename);
-int fat_size(const char *filename);
-long file_fat_read_at(const char *filename, unsigned long pos, void *buffer,
-                     unsigned long maxsize);
-long file_fat_read(const char *filename, void *buffer, unsigned long maxsize);
+int fat_size(const char *filename, loff_t *size);
+int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
+                    loff_t maxsize, loff_t *actread);
+int file_fat_read(const char *filename, void *buffer, int maxsize);
 const char *file_getfsname(int idx);
-int fat_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info);
-int fat_register_device(block_dev_desc_t *dev_desc, int part_no);
+int fat_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info);
+int fat_register_device(struct blk_desc *dev_desc, int part_no);
 
-int file_fat_write(const char *filename, void *buffer, unsigned long maxsize);
-int fat_read_file(const char *filename, void *buf, int offset, int len);
+int file_fat_write(const char *filename, void *buf, loff_t offset, loff_t len,
+                  loff_t *actwrite);
+int fat_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
+                 loff_t *actread);
 void fat_close(void);
 #endif /* _FAT_H_ */