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#ifndef _IPXE_EDD_H
#define _IPXE_EDD_H
/** @file
*
* Enhanced Disk Drive specification
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#include <ipxe/interface.h>
/** An EDD host bus type */
struct edd_host_bus_type {
/** Type */
uint32_t type;
} __attribute__ (( packed ));
/** EDD bus type */
#define EDD_BUS_TYPE_FIXED( a, b, c, d, ... ) \
( ( (a) << 0 ) | ( (b) << 8 ) | ( (c) << 16 ) | ( (d) << 24 ) )
#define EDD_BUS_TYPE( ... ) \
EDD_BUS_TYPE_FIXED ( __VA_ARGS__, ' ', ' ', ' ', ' ' )
/** EDD PCI bus type */
#define EDD_BUS_TYPE_PCI EDD_BUS_TYPE ( 'P', 'C', 'I' )
/** EDD ISA bus type */
#define EDD_BUS_TYPE_ISA EDD_BUS_TYPE ( 'I', 'S', 'A' )
/** EDD PCI-X bus type */
#define EDD_BUS_TYPE_PCIX EDD_BUS_TYPE ( 'P', 'C', 'I', 'X' )
/** EDD Infiniband bus type */
#define EDD_BUS_TYPE_IBND EDD_BUS_TYPE ( 'I', 'B', 'N', 'D' )
/** EDD PCI Express bus type */
#define EDD_BUS_TYPE_XPRS EDD_BUS_TYPE ( 'X', 'P', 'R', 'S' )
/** EDD HyperTransport bus type */
#define EDD_BUS_TYPE_HTPT EDD_BUS_TYPE ( 'H', 'T', 'P', 'T' )
/** An EDD interface type */
struct edd_interface_type {
/** Type */
uint64_t type;
} __attribute__ (( packed ));
/** EDD interface type */
#define EDD_INTF_TYPE_FIXED( a, b, c, d, e, f, g, h, ... ) \
( ( ( ( uint64_t ) (a) ) << 0 ) | ( ( ( uint64_t ) (b) ) << 8 ) | \
( ( ( uint64_t ) (c) ) << 16 ) | ( ( ( uint64_t ) (d) ) << 24 ) | \
( ( ( uint64_t ) (e) ) << 32 ) | ( ( ( uint64_t ) (f) ) << 40 ) | \
( ( ( uint64_t ) (g) ) << 48 ) | ( ( ( uint64_t ) (h) ) << 56 ) )
#define EDD_INTF_TYPE( ... ) \
EDD_INTF_TYPE_FIXED ( __VA_ARGS__, \
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' )
/** EDD ATA interface type */
#define EDD_INTF_TYPE_ATA EDD_INTF_TYPE ( 'A', 'T', 'A' )
/** EDD ATAPI interface type */
#define EDD_INTF_TYPE_ATAPI EDD_INTF_TYPE ( 'A', 'T', 'A', 'P', 'I' )
/** EDD SCSI interface type */
#define EDD_INTF_TYPE_SCSI EDD_INTF_TYPE ( 'S', 'C', 'S', 'I' )
/** EDD USB interface type */
#define EDD_INTF_TYPE_USB EDD_INTF_TYPE ( 'U', 'S', 'B' )
/** EDD 1394 interface type */
#define EDD_INTF_TYPE_1394 EDD_INTF_TYPE ( '1', '3', '9', '4' )
/** EDD Fibre Channel interface type */
#define EDD_INTF_TYPE_FIBRE EDD_INTF_TYPE ( 'F', 'I', 'B', 'R', 'E' )
/** EDD I2O interface type */
#define EDD_INTF_TYPE_I2O EDD_INTF_TYPE ( 'I', '2', 'O' )
/** EDD RAID interface type */
#define EDD_INTF_TYPE_RAID EDD_INTF_TYPE ( 'R', 'A', 'I', 'D' )
/** EDD SATA interface type */
#define EDD_INTF_TYPE_SATA EDD_INTF_TYPE ( 'S', 'A', 'T', 'A' )
/** EDD SAS interface type */
#define EDD_INTF_TYPE_SAS EDD_INTF_TYPE ( 'S', 'A', 'S' )
/** An EDD interface path */
union edd_interface_path {
/** Legacy bus type */
struct {
/** Base address */
uint16_t base;
} __attribute__ (( packed )) legacy;
/** PCI, PCI-X, PCI Express, or HyperTransport bus type */
struct {
/** Bus */
uint8_t bus;
/** Slot */
uint8_t slot;
/** Function */
uint8_t function;
/** Channel number */
uint8_t channel;
} __attribute__ (( packed )) pci;
/** Padding */
uint8_t pad[8];
} __attribute__ (( packed ));
/** An EDD device path */
union edd_device_path {
/** ATA interface type */
struct {
/** Slave */
uint8_t slave;
} __attribute__ (( packed )) ata;
/** ATAPI interface type */
struct {
/** Slave */
uint8_t slave;
/** Logical Unit Number */
uint8_t lun;
} __attribute__ (( packed )) atapi;
/** SCSI interface type */
struct {
/** SCSI ID */
uint16_t id;
/** Logical Unit Number */
uint64_t lun;
} __attribute__ (( packed )) scsi;
/** USB interface type */
struct {
/** Serial number */
uint64_t serial;
} __attribute__ (( packed )) usb;
/** IEEE1394 interface type */
struct {
/** GUID */
uint64_t guid;
} __attribute__ (( packed )) ieee1394;
/** Fibre Channel interface type */
struct {
/** WWN */
uint64_t wwn;
/** Logical Unit Number */
uint64_t lun;
} __attribute__ (( packed )) fibre;
/** I2O interface type */
struct {
/** Identity tag */
uint64_t tag;
} __attribute__ (( packed )) i2o;
/** RAID interface type */
struct {
/** Array number */
uint32_t array;
} __attribute__ (( packed )) raid;
/** SATA interface type */
struct {
/** Port number */
uint8_t port;
/** Port multiplier number */
uint8_t multiplier;
} __attribute__ (( packed )) sata;
/** SAS interface type */
struct {
/** Address */
uint64_t address;
} __attribute__ (( packed )) sas;
/** Padding */
uint8_t pad[16];
} __attribute__ (( packed ));
/** EDD device path information */
struct edd_device_path_information {
/** Key */
uint16_t key;
/** Length of this structure */
uint8_t len;
/** Reserved */
uint8_t reserved_a[3];
/** Host bus type */
struct edd_host_bus_type host_bus_type;
/** Interface type */
struct edd_interface_type interface_type;
/** Interface path */
union edd_interface_path interface_path;
/** Device path */
union edd_device_path device_path;
/** Reserved */
uint8_t reserved_b;
/** Checksum */
uint8_t checksum;
} __attribute__ (( packed ));
/** EDD device path information key */
#define EDD_DEVICE_PATH_INFO_KEY 0xbedd
extern int edd_describe ( struct interface *intf,
struct edd_interface_type *type,
union edd_device_path *path );
#define edd_describe_TYPE( object_type ) \
typeof ( int ( object_type, struct edd_interface_type *type, \
union edd_device_path *path ) )
#endif /* _IPXE_EDD_H */
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