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 33extern "C" { 34#endif 35 36/* 37 * Implementation dependent view of a ATA command descriptor block 38 */ 39 40struct 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 */ 63struct 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