1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_BIOSDISK_H 27 #define _SYS_BIOSDISK_H 28 29 #include <sys/types.h> 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 typedef union device_path { 36 struct { /* ATA or ATAPI or SATA */ 37 unsigned char chan; /* 0 or 1 */ 38 unsigned char lun; /* for ATAPI only */ 39 } ata; 40 struct { 41 unsigned short target; 42 uint32_t lun_lo; 43 uint32_t lun_hi; 44 } scsi; 45 struct { 46 uint64_t usb_serial_id; 47 } usb; 48 struct { 49 uint64_t eui; 50 } s1394; 51 struct { 52 uint64_t wwid; 53 uint64_t lun; 54 } fibre; 55 struct { 56 uint64_t id_tag; 57 } i2o; 58 59 struct { 60 uint32_t raid_array_num; 61 } raid; 62 unsigned char pad[16]; /* total length */ 63 } device_path_t; 64 65 66 typedef union interface_path { 67 struct { 68 unsigned short baseport; 69 } isa; 70 struct { /* PCI or PCIX */ 71 unsigned char bus; 72 unsigned char device; 73 unsigned char function; 74 unsigned char channel; 75 } pci; 76 char pad[8]; 77 } interface_path_t; 78 79 /* 80 * Structure for Int 13 function 48 (EDD 3.0) 81 * 82 * from T13/1484D Revision 2 83 */ 84 85 #pragma pack(1) 86 typedef struct int13_fn48_result { 87 unsigned short buflen; 88 unsigned short flags; 89 uint32_t ncyl; 90 uint32_t nhead; 91 uint32_t spt; 92 uint32_t nsect_lo; 93 uint32_t nsect_hi; 94 unsigned short bps; 95 uint32_t dpte; 96 unsigned short magic; /* BEDD if Path info there */ 97 unsigned char pathinfo_len; 98 unsigned char res1; 99 unsigned short res2; 100 char bustype[4]; /* offset 36 */ 101 char interface_type[8]; 102 interface_path_t interfacepath; 103 device_path_t devicepath; 104 unsigned char res3; 105 unsigned char checksum; /* offset 73 */ 106 } fn48_t; 107 108 typedef struct int13_fn4b_result { 109 uint8_t pkt_size; /* Packet size (== 0x13) */ 110 111 uint8_t boot_mtype; /* Boot media type: see defines below */ 112 113 uint8_t drivenum; 114 uint8_t ctlr_idx; 115 uint32_t lba; 116 uint16_t dev_spec; 117 uint16_t buf_seg; 118 uint16_t load_seg; 119 uint16_t sect_cnt; 120 uint8_t cyl_0_7; /* Bits 0-7 of the 9-bit cylinder cnt */ 121 /* 122 * Bits 0-5: Sector count 123 * 6-7: High 2 bits of the 9-bit cylinder count 124 */ 125 uint8_t sec_0_5_and_cyl_8_9; 126 uint8_t head_cnt; 127 } fn4b_t; 128 129 #pragma pack() 130 131 typedef struct biosdev_data { 132 uchar_t first_block_valid; 133 uchar_t first_block[512]; 134 uchar_t edd_valid; 135 fn48_t fn48_dev_params; 136 } biosdev_data_t; 137 138 /* 139 * Definitions for boot_mtype in fn4b_t 140 */ 141 #define BOOT_MTYPE_MASK 0xF 142 #define BOOT_MTYPE(x) ((x) & BOOT_MTYPE_MASK) 143 #define BOOT_MTYPE_NO_EMUL 0 144 #define BOOT_MTYPE_1_2M_FLOPPY 1 145 #define BOOT_MTYPE_1_44M_FLOPPY 2 146 #define BOOT_MTYPE_2_88M_FLOPPY 3 147 #define BOOT_MTYPE_HARD_DISK 4 148 #define BOOT_MTYPE_INTF_MASK 0xC0 149 #define BOOT_MTYPE_INTF_ATAPI 0x40 150 #define BOOT_MTYPE_INTF_SCSI 0x80 151 #define BOOT_MTYPE_IS_ATAPI(x) \ 152 (((x) & BOOT_MTYPE_INTF_MASK) == BOOT_MTYPE_INTF_ATAPI) 153 #define BOOT_MTYPE_IS_SCSI(x) \ 154 (((x) & BOOT_MTYPE_INTF_MASK) == BOOT_MTYPE_INTF_SCSI) 155 156 #ifdef __cplusplus 157 } 158 #endif 159 160 #endif /* _SYS_BIOSDISK_H */ 161