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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_BIOSDISK_H
#define _SYS_BIOSDISK_H
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef union device_path {
struct { /* ATA or ATAPI or SATA */
unsigned char chan; /* 0 or 1 */
unsigned char lun; /* for ATAPI only */
} ata;
struct {
unsigned short target;
uint32_t lun_lo;
uint32_t lun_hi;
} scsi;
struct {
uint64_t usb_serial_id;
} usb;
struct {
uint64_t eui;
} s1394;
struct {
uint64_t wwid;
uint64_t lun;
} fibre;
struct {
uint64_t id_tag;
} i2o;
struct {
uint32_t raid_array_num;
} raid;
unsigned char pad[16]; /* total length */
} device_path_t;
typedef union interface_path {
struct {
unsigned short baseport;
} isa;
struct { /* PCI or PCIX */
unsigned char bus;
unsigned char device;
unsigned char function;
unsigned char channel;
} pci;
char pad[8];
} interface_path_t;
/*
* Structure for Int 13 function 48 (EDD 3.0)
*
* from T13/1484D Revision 2
*/
#pragma pack(1)
typedef struct int13_fn48_result {
unsigned short buflen;
unsigned short flags;
uint32_t ncyl;
uint32_t nhead;
uint32_t spt;
uint32_t nsect_lo;
uint32_t nsect_hi;
unsigned short bps;
uint32_t dpte;
unsigned short magic; /* BEDD if Path info there */
unsigned char pathinfo_len;
unsigned char res1;
unsigned short res2;
char bustype[4]; /* offset 36 */
char interface_type[8];
interface_path_t interfacepath;
device_path_t devicepath;
unsigned char res3;
unsigned char checksum; /* offset 73 */
} fn48_t;
typedef struct int13_fn4b_result {
uint8_t pkt_size; /* Packet size (== 0x13) */
uint8_t boot_mtype; /* Boot media type: see defines below */
uint8_t drivenum;
uint8_t ctlr_idx;
uint32_t lba;
uint16_t dev_spec;
uint16_t buf_seg;
uint16_t load_seg;
uint16_t sect_cnt;
uint8_t cyl_0_7; /* Bits 0-7 of the 9-bit cylinder cnt */
/*
* Bits 0-5: Sector count
* 6-7: High 2 bits of the 9-bit cylinder count
*/
uint8_t sec_0_5_and_cyl_8_9;
uint8_t head_cnt;
} fn4b_t;
#pragma pack()
typedef struct biosdev_data {
uchar_t first_block_valid;
uchar_t first_block[512];
uchar_t edd_valid;
fn48_t fn48_dev_params;
} biosdev_data_t;
/*
* Definitions for boot_mtype in fn4b_t
*/
#define BOOT_MTYPE_MASK 0xF
#define BOOT_MTYPE(x) ((x) & BOOT_MTYPE_MASK)
#define BOOT_MTYPE_NO_EMUL 0
#define BOOT_MTYPE_1_2M_FLOPPY 1
#define BOOT_MTYPE_1_44M_FLOPPY 2
#define BOOT_MTYPE_2_88M_FLOPPY 3
#define BOOT_MTYPE_HARD_DISK 4
#define BOOT_MTYPE_INTF_MASK 0xC0
#define BOOT_MTYPE_INTF_ATAPI 0x40
#define BOOT_MTYPE_INTF_SCSI 0x80
#define BOOT_MTYPE_IS_ATAPI(x) \
(((x) & BOOT_MTYPE_INTF_MASK) == BOOT_MTYPE_INTF_ATAPI)
#define BOOT_MTYPE_IS_SCSI(x) \
(((x) & BOOT_MTYPE_INTF_MASK) == BOOT_MTYPE_INTF_SCSI)
#ifdef __cplusplus
}
#endif
#endif /* _SYS_BIOSDISK_H */
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