X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fdrivers%2Fao_fat.h;h=01435363bf0009a28f74f26750f09a84888200e4;hb=7b275ddfe20f54857d7d1abb98607c406b678090;hp=5b9b300f51d53ebf402658f1e2ac4bb685e0ac35;hpb=c7b606e93a4e4fbd2c0e883352ed74619ee24cf7;p=fw%2Faltos

diff --git a/src/drivers/ao_fat.h b/src/drivers/ao_fat.h
index 5b9b300f..01435363 100644
--- a/src/drivers/ao_fat.h
+++ b/src/drivers/ao_fat.h
@@ -32,9 +32,10 @@ ao_fat_init(void);
 #define AO_FAT_DENT_EMPTY		0xe5
 #define AO_FAT_DENT_END			0x00
 
-#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_IS_FILE(attr)	(((attr) & (AO_FAT_FILE_VOLUME_LABEL|AO_FAT_FILE_DIRECTORY)) == 0)
+#define AO_FAT_IS_DIR(attr)	(((attr) & (AO_FAT_FILE_DIRECTORY|AO_FAT_FILE_VOLUME_LABEL)) == AO_FAT_FILE_DIRECTORY)
 
+/* API error codes */
 #define AO_FAT_SUCCESS			0
 #define AO_FAT_EPERM			1
 #define AO_FAT_ENOENT			2
@@ -47,6 +48,27 @@ ao_fat_init(void);
 #define AO_FAT_EMFILE			24
 #define AO_FAT_EFBIG			27
 #define AO_FAT_ENOSPC			28
+#define AO_FAT_EDIREOF			29
+
+/* ao_fat_setup return values */
+#define AO_FAT_FILESYSTEM_SUCCESS			0
+#define AO_FAT_FILESYSTEM_MBR_READ_FAILURE		1
+#define AO_FAT_FILESYSTEM_INVALID_MBR_SIGNATURE		2
+#define AO_FAT_FILESYSTEM_INVALID_PARTITION_TYPE	3
+#define AO_FAT_FILESYSTEM_ZERO_SIZED_PARTITION		4
+
+#define AO_FAT_FILESYSTEM_BOOT_READ_FAILURE		5
+#define AO_FAT_FILESYSTEM_INVALID_BOOT_SIGNATURE	6
+#define AO_FAT_FILESYSTEM_INVALID_SECTOR_SIZE		7
+
+void
+ao_fat_sync(void);
+
+void
+ao_fat_unmount(void);
+
+int8_t
+ao_fat_full(void);
 
 int8_t
 ao_fat_open(char name[11], uint8_t mode);
@@ -59,20 +81,20 @@ int8_t
 ao_fat_creat(char name[11]);
 
 int8_t
-ao_fat_close(void);
+ao_fat_close(int8_t fd);
 
 int
-ao_fat_read(void *dest, int len);
+ao_fat_read(int8_t fd, void *dest, int len);
 
 int
-ao_fat_write(void *src, int len);
+ao_fat_write(int8_t fd, void *src, int len);
 
 #define AO_FAT_SEEK_SET	0
 #define AO_FAT_SEEK_CUR	1
 #define AO_FAT_SEEK_END	2
 
 int32_t
-ao_fat_seek(int32_t pos, uint8_t whence);
+ao_fat_seek(int8_t fd, int32_t pos, uint8_t whence);
 
 int8_t
 ao_fat_unlink(char name[11]);
@@ -80,12 +102,37 @@ ao_fat_unlink(char name[11]);
 int8_t
 ao_fat_rename(char old[11], char new[11]);
 
+/*
+ * Byte offset within a file. Supports files up to 2GB in size
+ */
+typedef int32_t		ao_fat_offset_t;
+
+/*
+ * Cluster index in partition data space
+ */
+typedef uint32_t	ao_fat_cluster_t;
+
+/*
+ * Sector offset within partition
+ */
+typedef uint32_t	ao_fat_sector_t;
+
+/*
+ * Index within the root directory
+ */
+typedef uint16_t	ao_fat_dirent_t;
+
+/*
+ * Offset within a cluster (or sector)
+ */
+typedef uint16_t	ao_fat_cluster_offset_t;
+
 struct ao_fat_dirent {
-	char		name[11];
-	uint8_t		attr;
-	uint32_t	size;
-	uint16_t	cluster;
-	uint16_t	entry;
+	char			name[11];
+	uint8_t			attr;
+	uint32_t		size;
+	ao_fat_cluster_t	cluster;
+	uint16_t		entry;
 };
 
 int8_t