56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
#ifndef _IPXE_BLOCKDEV_H
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#define _IPXE_BLOCKDEV_H
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/**
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* @file
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*
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* Block devices
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <stdint.h>
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#include <ipxe/uaccess.h>
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#include <ipxe/interface.h>
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/** Block device capacity */
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struct block_device_capacity {
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/** Total number of blocks */
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uint64_t blocks;
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/** Block size */
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size_t blksize;
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/** Maximum number of blocks per single transfer */
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unsigned int max_count;
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};
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extern int block_read ( struct interface *control, struct interface *data,
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uint64_t lba, unsigned int count,
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userptr_t buffer, size_t len );
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#define block_read_TYPE( object_type ) \
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typeof ( int ( object_type, struct interface *data, \
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uint64_t lba, unsigned int count, \
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userptr_t buffer, size_t len ) )
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extern int block_write ( struct interface *control, struct interface *data,
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uint64_t lba, unsigned int count,
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userptr_t buffer, size_t len );
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#define block_write_TYPE( object_type ) \
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typeof ( int ( object_type, struct interface *data, \
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uint64_t lba, unsigned int count, \
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userptr_t buffer, size_t len ) )
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extern int block_read_capacity ( struct interface *control,
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struct interface *data );
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#define block_read_capacity_TYPE( object_type ) \
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typeof ( int ( object_type, struct interface *data ) )
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extern void block_capacity ( struct interface *intf,
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struct block_device_capacity *capacity );
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#define block_capacity_TYPE( object_type ) \
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typeof ( void ( object_type, \
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struct block_device_capacity *capacity ) )
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#endif /* _IPXE_BLOCKDEV_H */
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