35,10 → 35,48 |
#ifndef KERN_RD_H_ |
#define KERN_RD_H_ |
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#include <arch/types.h> |
#include <typedefs.h> |
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extern bool init_rd(void * addr); |
/** |
* RAM disk version |
*/ |
#define RD_VERSION 0 |
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/** |
* 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' |
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/** |
* 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) */ |
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/** |
* 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) */ |
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/** 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; |
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extern int init_rd(rd_header * addr); |
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#endif |
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/** @} |