altos: Clean up fat driver API. Improve fat test

[fw/altos] / src / drivers / ao_fat.h

diff --git a/src/drivers/ao_fat.h b/src/drivers/ao_fat.h
index 2bf6222e69701bf455e65792444b580bbe28ebbb..5b9b300f51d53ebf402658f1e2ac4bb685e0ac35 100644 (file)
--- a/src/drivers/ao_fat.h
+++ b/src/drivers/ao_fat.h
@@ -21,6 +21,7 @@
 void
 ao_fat_init(void);
 
+#define AO_FAT_FILE_REGULAR            0x00
 #define AO_FAT_FILE_READ_ONLY          0x01
 #define AO_FAT_FILE_HIDDEN             0x02
 #define AO_FAT_FILE_SYSTEM             0x04
@@ -31,32 +32,52 @@ ao_fat_init(void);
 #define AO_FAT_DENT_EMPTY              0xe5
 #define AO_FAT_DENT_END                        0x00
 
-uint8_t
-ao_fat_open(char name[11]);
-
-uint8_t
+#define AO_FAT_IS_FILE(attr)   (((attr) & (AO_FAT_FILE_VOLUME_LABEL|AO_FAT_FILE_DIRECTORY|AO_FAT_FILE_ARCHIVE)) == 0)
+#define AO_FAT_IS_DIR(attr)    (((attr) & (AO_FAT_FILE_DIRECTORY)) == AO_FAT_FILE_DIRECTORY)
+
+#define AO_FAT_SUCCESS                 0
+#define AO_FAT_EPERM                   1
+#define AO_FAT_ENOENT                  2
+#define AO_FAT_EIO                     4
+#define AO_FAT_EBADF                   9
+#define AO_FAT_EACCESS                 13
+#define AO_FAT_EEXIST                  17
+#define AO_FAT_ENOTDIR                 20
+#define AO_FAT_EISDIR                  21
+#define AO_FAT_EMFILE                  24
+#define AO_FAT_EFBIG                   27
+#define AO_FAT_ENOSPC                  28
+
+int8_t
+ao_fat_open(char name[11], uint8_t mode);
+
+#define AO_FAT_OPEN_READ               0
+#define AO_FAT_OPEN_WRITE              1
+#define AO_FAT_OPEN_RW                 2
+
+int8_t
 ao_fat_creat(char name[11]);
 
-void
+int8_t
 ao_fat_close(void);
 
 int
-ao_fat_read(uint8_t *dest, int len);
+ao_fat_read(void *dest, int len);
 
 int
-ao_fat_write(uint8_t *buf, int len);
+ao_fat_write(void *src, int len);
 
 #define AO_FAT_SEEK_SET        0
 #define AO_FAT_SEEK_CUR        1
 #define AO_FAT_SEEK_END        2
 
-uint32_t
-bao_fat_seek(int32_t pos, uint8_t whence);
+int32_t
+ao_fat_seek(int32_t pos, uint8_t whence);
 
-uint8_t
+int8_t
 ao_fat_unlink(char name[11]);
 
-uint8_t
+int8_t
 ao_fat_rename(char old[11], char new[11]);
 
 struct ao_fat_dirent {
@@ -67,7 +88,7 @@ struct ao_fat_dirent {
        uint16_t        entry;
 };
 
-uint8_t
+int8_t
 ao_fat_readdir(uint16_t *entry, struct ao_fat_dirent *dirent);
 
 #endif /* _AO_FAT_H_ */