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#ifndef _IPXE_BLOCKDEV_H
#define _IPXE_BLOCKDEV_H
/**
* @file
*
* Block devices
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#include <ipxe/uaccess.h>
#include <ipxe/interface.h>
/** Block device capacity */
struct block_device_capacity {
/** Total number of blocks */
uint64_t blocks;
/** Block size */
size_t blksize;
/** Maximum number of blocks per single transfer */
unsigned int max_count;
};
extern int block_read ( struct interface *control, struct interface *data,
uint64_t lba, unsigned int count,
userptr_t buffer, size_t len );
#define block_read_TYPE( object_type ) \
typeof ( int ( object_type, struct interface *data, \
uint64_t lba, unsigned int count, \
userptr_t buffer, size_t len ) )
extern int block_write ( struct interface *control, struct interface *data,
uint64_t lba, unsigned int count,
userptr_t buffer, size_t len );
#define block_write_TYPE( object_type ) \
typeof ( int ( object_type, struct interface *data, \
uint64_t lba, unsigned int count, \
userptr_t buffer, size_t len ) )
extern int block_read_capacity ( struct interface *control,
struct interface *data );
#define block_read_capacity_TYPE( object_type ) \
typeof ( int ( object_type, struct interface *data ) )
extern void block_capacity ( struct interface *intf,
struct block_device_capacity *capacity );
#define block_capacity_TYPE( object_type ) \
typeof ( void ( object_type, \
struct block_device_capacity *capacity ) )
#endif /* _IPXE_BLOCKDEV_H */
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