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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1996-2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _SYS_DADA_IMPL_COMMANDS_H 28 #define _SYS_DADA_IMPL_COMMANDS_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * Implementation dependent view of a ATA command descriptor block 38 */ 39 40 struct dcd_cmd { 41 uchar_t cmd; /* The ATA command */ 42 uchar_t address_mode; /* Mode of addressing */ 43 uchar_t direction; /* Not SCSI to be indicated */ 44 uchar_t features; /* Any features to be enabled */ 45 uint_t size; /* size in bytes */ 46 uint_t version; /* version number */ 47 union { 48 uint_t lba_num; /* LBA number if LBA */ 49 /* mode is used */ 50 struct chs { 51 ushort_t cylinder; /* Cylinder Number */ 52 uchar_t head; /* Head number */ 53 uchar_t sector; /* Sector Number */ 54 } chs_address; 55 } sector_num; 56 }; 57 58 #define GETATACMD(cdb) ((cdb)->cmd) 59 60 /* 61 * Direct Access Device Capacity Structure 62 */ 63 struct dcd_capacity { 64 uchar_t heads; 65 uchar_t sectors; 66 ushort_t ncyls; 67 uint_t capacity; 68 uint_t lbasize; 69 }; 70 71 72 /* The following are the defines for the commands. */ 73 74 #define IDENTIFY 0xEC /* Identify Device */ 75 #define IDENTIFY_DMA 0xEE /* Identify DMA */ 76 #define ATA_RECALIBRATE 0x10 /* Recalibrate */ 77 #define ATA_READ 0x20 /* With retries */ 78 #define ATA_WRITE 0x30 /* With retries */ 79 #define ATA_SET_MULTIPLE 0xC6 /* Set Multiple */ 80 #define ATA_READ_MULTIPLE 0xC4 /* Read Multiple */ 81 #define ATA_WRITE_MULTIPLE 0xC5 /* Write Multiple */ 82 #define ATA_READ_DMA 0xC8 /* Read DMA with retries */ 83 #define ATA_WRITE_DMA 0xCA /* Write DMA with reties */ 84 #define ATA_SET_FEATURES 0xEF /* Set features */ 85 #define ATA_IDLE_IMMEDIATE 0xE1 /* Idle immediate */ 86 #define ATA_STANDBY_IMMEDIATE 0xE0 /* Standby Immediate */ 87 #define ATA_FLUSH_CACHE 0xE7 /* Flush Cache */ 88 #define ATA_DOWNLOAD_MICROCODE 0x92 /* Download microcode */ 89 90 /* The following are the defines for the direction. */ 91 92 #define DATA_READ 0x01 /* READ from disk */ 93 #define DATA_WRITE 0x02 /* WRITE to disk */ 94 #define NO_DATA_XFER 0x00 /* No data xfer involved */ 95 96 /* The following are the defines for the address mode */ 97 98 #define ADD_LBA_MODE 0x01 /* LBA Mode of addressing */ 99 #define ADD_CHS_MODE 0x02 /* Cylinder Head Sector mode */ 100 101 /* The following are the usefull subcommands for set features command */ 102 #define ATA_FEATURE_SET_MODE 0x03 /* This sets the mode */ 103 104 /* The following are the masks which are used for enabling DMA or PIO */ 105 #define ENABLE_PIO_FEATURE 0x08 /* PIO with flow control */ 106 #define ENABLE_DMA_FEATURE 0x20 /* Enable DMA */ 107 #define ENABLE_ULTRA_FEATURE 0x40 /* Enable ULTRA DMA */ 108 109 #ifdef __cplusplus 110 } 111 #endif 112 113 #endif /* _SYS_DADA_IMPL_COMMANDS_H */ 114