wdcreg.h revision 1.9
1/* $OpenBSD: wdcreg.h,v 1.9 2003/09/28 21:01:43 grange Exp $ */ 2/* $NetBSD: wdcreg.h,v 1.22 1999/03/07 14:02:54 bouyer Exp $ */ 3 4/*- 5 * Copyright (c) 1991 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * William Jolitz. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)wdreg.h 7.1 (Berkeley) 5/9/91 36 */ 37 38/* 39 * Controller register (wdr_ctlr) 40 */ 41#define WDCTL_4BIT 0x08 /* use four head bits (wd1003) */ 42#define WDCTL_RST 0x04 /* reset the controller */ 43#define WDCTL_IDS 0x02 /* disable controller interrupts */ 44#if 0 /* NOT MAPPED; fd uses this register on PCs */ 45#define wd_digin 1 /* disk controller input (R) */ 46#endif 47 48/* 49 * Status bits. 50 */ 51#define WDCS_BSY 0x80 /* busy */ 52#define WDCS_DRDY 0x40 /* drive ready */ 53#define WDCS_DWF 0x20 /* drive write fault */ 54#define WDCS_DSC 0x10 /* drive seek complete */ 55#define WDCS_DRQ 0x08 /* data request */ 56#define WDCS_CORR 0x04 /* corrected data */ 57#define WDCS_IDX 0x02 /* index */ 58#define WDCS_ERR 0x01 /* error */ 59#define WDCS_BITS "\020\010bsy\007drdy\006dwf\005dsc\004drq\003corr\002idx\001err" 60 61/* 62 * Error bits. 63 */ 64#define WDCE_BBK 0x80 /* bad block detected */ 65#define WDCE_CRC 0x80 /* CRC error (Ultra-DMA only) */ 66#define WDCE_UNC 0x40 /* uncorrectable data error */ 67#define WDCE_MC 0x20 /* media changed */ 68#define WDCE_IDNF 0x10 /* id not found */ 69#define WDCE_MCR 0x08 /* media change requested */ 70#define WDCE_ABRT 0x04 /* aborted command */ 71#define WDCE_TK0NF 0x02 /* track 0 not found */ 72#define WDCE_AMNF 0x01 /* address mark not found */ 73 74/* 75 * Commands for Disk Controller. 76 */ 77#define WDCC_NOP 0x00 /* NOP - Always fail with "aborted command" */ 78#define WDCC_RECAL 0x10 /* disk restore code -- resets cntlr */ 79 80#define WDCC_READ 0x20 /* disk read code */ 81#define WDCC_WRITE 0x30 /* disk write code */ 82#define WDCC__LONG 0x02 /* modifier -- access ecc bytes */ 83#define WDCC__NORETRY 0x01 /* modifier -- no retrys */ 84 85#define WDCC_FORMAT 0x50 /* disk format code */ 86#define WDCC_DIAGNOSE 0x90 /* controller diagnostic */ 87#define WDCC_IDP 0x91 /* initialize drive parameters */ 88 89#define WDCC_READMULTI 0xc4 /* read multiple */ 90#define WDCC_WRITEMULTI 0xc5 /* write multiple */ 91#define WDCC_SETMULTI 0xc6 /* set multiple mode */ 92 93#define WDCC_READDMA 0xc8 /* read with DMA */ 94#define WDCC_WRITEDMA 0xca /* write with DMA */ 95 96#define WDCC_ACKMC 0xdb /* acknowledge media change */ 97#define WDCC_LOCK 0xde /* lock drawer */ 98#define WDCC_UNLOCK 0xdf /* unlock drawer */ 99 100#define WDCC_FLUSHCACHE 0xe7 /* Flush cache */ 101#define WDCC_IDENTIFY 0xec /* read parameters from controller */ 102#define SET_FEATURES 0xef /* set features */ 103 104#define WDCC_IDLE 0xe3 /* set idle timer & enter idle mode */ 105#define WDCC_IDLE_IMMED 0xe1 /* enter idle mode */ 106#define WDCC_SLEEP 0xe6 /* enter sleep mode */ 107#define WDCC_STANDBY 0xe2 /* set standby timer & enter standby mode */ 108#define WDCC_STANDBY_IMMED 0xe0 /* enter standby mode */ 109#define WDCC_CHECK_PWR 0xe5 /* check power mode */ 110 111#define WDCC_READ_EXT 0x24 /* read 48-bit addressing */ 112#define WDCC_WRITE_EXT 0x34 /* write 48-bit addressing */ 113 114#define WDCC_READMULTI_EXT 0x29 /* read multiple 48-bit addressing */ 115#define WDCC_WRITEMULTI_EXT 0x39 /* write multiple 48-bit addressing */ 116 117#define WDCC_READDMA_EXT 0x25 /* read 48-bit addressing with DMA */ 118#define WDCC_WRITEDMA_EXT 0x35 /* write 48-bit addressing with DMA */ 119 120/* Subcommands for SET_FEATURES (features register ) */ 121#define WDSF_8BIT_PIO_EN 0x01 /* Enable 8bit PIO (CFA featureset) */ 122#define WDSF_EN_WR_CACHE 0x02 123#define WDSF_SET_MODE 0x03 124#define WDSF_REASSIGN_EN 0x04 /* Obsolete in ATA-6 */ 125#define WDSF_APM_EN 0x05 /* Enable Adv. Power Management */ 126#define WDSF_PUIS_EN 0x06 /* Enable Power-Up In Standby */ 127#define WDSF_PUIS_SPINUP 0x07 /* Power-Up In Standby spin-up */ 128#define WDSF_CFA_MODE1_EN 0x0A /* Enable CFA power mode 1 */ 129#define WDSF_RMSN_DS 0x31 /* Disable Removable Media Status */ 130#define WDSF_RETRY_DS 0x33 /* Obsolete in ATA-6 */ 131#define WDSF_AAM_EN 0x42 /* Enable Autom. Acoustic Management */ 132#define WDSF_SET_CACHE_SGMT 0x54 /* Obsolete in ATA-6 */ 133#define WDSF_READAHEAD_DS 0x55 /* Disable read look-ahead */ 134#define WDSF_RLSE_EN 0x5D /* Enable release interrupt */ 135#define WDSF_SRV_EN 0x5E /* Enable SERVICE interrupt */ 136#define WDSF_POD_DS 0x66 137#define WDSF_ECC_DS 0x77 138#define WDSF_8BIT_PIO_DS 0x81 /* Disable 8bit PIO (CFA featureset) */ 139#define WDSF_WRITE_CACHE_DS 0x82 140#define WDSF_REASSIGN_DS 0x84 141#define WDSF_APM_DS 0x85 /* Disable Adv. Power Management */ 142#define WDSF_PUIS_DS 0x86 /* Disable Power-Up In Standby */ 143#define WDSF_ECC_EN 0x88 144#define WDSF_CFA_MODE1_DS 0x8A /* Disable CFA power mode 1 */ 145#define WDSF_RMSN_EN 0x95 /* Enable Removable Media Status */ 146#define WDSF_RETRY_EN 0x99 /* Obsolete in ATA-6 */ 147#define WDSF_SET_CURRENT 0x9A /* Obsolete in ATA-6 */ 148#define WDSF_READAHEAD_EN 0xAA 149#define WDSF_PREFETCH_SET 0xAB /* Obsolete in ATA-6 */ 150#define WDSF_AAM_DS 0xC2 /* Disable Autom. Acoustic Management */ 151#define WDSF_POD_EN 0xCC 152#define WDSF_RLSE_DS 0xDD /* Disable release interrupt */ 153#define WDSF_SRV_DS 0xDE /* Disable SERVICE interrupt */ 154 155/* parameters uploaded to device/heads register */ 156#define WDSD_IBM 0xa0 /* forced to 512 byte sector, ecc */ 157#define WDSD_CHS 0x00 /* cylinder/head/sector addressing */ 158#define WDSD_LBA 0x40 /* logical block addressing */ 159 160/* Commands for ATAPI devices */ 161#define ATAPI_CHECK_POWER_MODE 0xe5 162#define ATAPI_EXEC_DRIVE_DIAGS 0x90 163#define ATAPI_IDLE_IMMEDIATE 0xe1 164#define ATAPI_NOP 0x00 165#define ATAPI_PKT_CMD 0xa0 166#define ATAPI_IDENTIFY_DEVICE 0xa1 167#define ATAPI_SOFT_RESET 0x08 168#define ATAPI_DEVICE_RESET 0x08 /* ATA/ATAPI-5 name for soft reset */ 169#define ATAPI_SLEEP 0xe6 170#define ATAPI_STANDBY_IMMEDIATE 0xe0 171#define ATAPI_SMART 0xB0 /* SMART operations */ 172#define ATAPI_SETMAX 0xF9 /* Set Max Address */ 173#define ATAPI_WRITEEXT 0x34 /* Write sectors Ext */ 174#define ATAPI_SETMAXEXT 0x37 /* Set Max Address Ext */ 175#define ATAPI_WRITEMULTIEXT 0x39 /* Write Multi Ext */ 176 177/* Bytes used by ATAPI_PACKET_COMMAND ( feature register) */ 178#define ATAPI_PKT_CMD_FTRE_DMA 0x01 179#define ATAPI_PKT_CMD_FTRE_OVL 0x02 180 181/* ireason */ 182#define WDCI_CMD 0x01 /* command(1) or data(0) */ 183#define WDCI_IN 0x02 /* transfer to(1) or from(0) the host */ 184#define WDCI_RELEASE 0x04 /* bus released until completion */ 185 186#define PHASE_CMDOUT (WDCS_DRQ | WDCI_CMD) 187#define PHASE_DATAIN (WDCS_DRQ | WDCI_IN) 188#define PHASE_DATAOUT WDCS_DRQ 189#define PHASE_COMPLETED (WDCI_IN | WDCI_CMD) 190#define PHASE_ABORTED 0 191 192 193