Changeset 058b021 in mainline for kernel/generic/include/lib/rd.h

Timestamp:

2006-11-30T13:43:00Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c55dd58

Parents:

0cf1dcf

Message:

rd work

File:

• kernel/generic/include/lib/rd.h (modified) (1 diff)

kernel/generic/include/lib/rd.h

@@ -36 +36 @@
 #define KERN_RD_H_
 
+#include <arch/types.h>
 #include <typedefs.h>
 
-extern bool init_rd(void * addr);
+/**
+ * RAM disk version
+ */
+#define RD_VERSION      0
+
+/**
+ * RAM disk magic number
+ */
+#define RD_MAGIC_SIZE   4
+#define RD_MAG0                 'H'
+#define RD_MAG1                 'O'
+#define RD_MAG2                 'R'
+#define RD_MAG3                 'D'
+
+/**
+ * RAM disk data encoding types
+ */
+#define RD_DATA_NONE    0
+#define RD_DATA_LSB             1               /* Least significant byte first (little endian) */
+#define RD_DATA_MSB             2               /* Most signigicant byte first (big endian) */
+
+/**
+ * RAM disk error return codes
+ */
+#define RE_OK                   0       /* No error */
+#define RE_INVALID              1       /* Invalid RAM disk image */
+#define RE_UNSUPPORTED          2       /* Non-supported image (e.g. wrong version) */
+
+/** RAM disk header */
+typedef struct {
+        uint8_t magic[RD_MAGIC_SIZE];
+        uint8_t version;
+        uint8_t data_type;
+        uint32_t header_size;
+        uint64_t data_size;
+} rd_header;
+
+extern int init_rd(rd_header * addr);
 
 #endif