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- /*
- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Computer Consoles Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)vdreg.h 7.7 (Berkeley) 6/28/90
- */
-
- /*
- * Versabus VDDC/SMDE disk controller definitions.
- */
- #define VDDC_SECSIZE 512 /* sector size for VDDC */
- #define VD_MAXSECSIZE 1024 /* max sector size for SMD/E */
-
- /*
- * Controller communications block.
- */
- struct vddevice {
- u_long vdcdr; /* controller device register */
- u_long vdreset; /* controller reset register */
- u_long vdcsr; /* control-status register */
- long vdrstclr; /* reset clear register */
- u_short vdstatus[16]; /* per-drive status register */
- u_short vdicf_status; /* status change interupt control format */
- u_short vdicf_done; /* interrupt complete control format */
- u_short vdicf_error; /* interrupt error control format */
- u_short vdicf_success; /* interrupt success control format */
- u_short vdtcf_mdcb; /* mdcb transfer control format */
- u_short vdtcf_dcb; /* dcb transfer control format */
- u_short vdtcf_trail; /* trail transfer control format */
- u_short vdtcf_data; /* data transfer control format */
- u_long vdccf; /* controller configuration flags */
- u_long vdsecsize; /* sector size */
- u_short vdfill0;
- u_char vdcylskew; /* cylinder to cylinder skew factor */
- u_char vdtrackskew; /* track to track skew factor */
- u_long vdfill1;
- u_long vddfr; /* diagnostic flag register */
- u_long vddda; /* diagnostic dump address */
- };
-
- /* controller types */
- #define VDTYPE_VDDC 1 /* old vddc controller (smd only) */
- #define VDTYPE_SMDE 2 /* new smde controller (smd-e) */
-
- /*
- * Controller status definitions.
- */
- #define CS_SCS 0xf /* status change source (drive number) */
- #define CS_ELC 0x10 /* error on last command */
- #define CS_ICC 0x60 /* interupt cause code */
- #define ICC_NOI 0x00 /* no interupt */
- #define ICC_DUN 0x20 /* no interupt */
- #define ICC_ERR 0x40 /* no interupt */
- #define ICC_SUC 0x60 /* no interupt */
- #define CS_GO 0x80 /* go bit (controller busy) */
- #define CS_BE 0x100 /* buss error */
- #define CS_BOK 0x4000 /* board ok */
- #define CS_SFL 0x8000 /* system fail */
- #define CS_LEC 0xff000000 /* last error code */
-
- /*
- * Drive status definitions.
- */
- #define STA_UR 0x1 /* unit ready */
- #define STA_OC 0x2 /* on cylinder */
- #define STA_SE 0x4 /* seek error */
- #define STA_DF 0x8 /* drive fault */
- #define STA_WP 0x10 /* write protected */
- #define STA_US 0x20 /* unit selected */
- #define STA_TYPE 0x300 /* drive type: */
- #define STA_SMD 0x000 /* SMD */
- #define STA_ESDI 0x100 /* ESDI */
-
- /*
- * Interupt Control Field definitions.
- */
- #define ICF_IPL 0x7 /* interupt priority level */
- #define ICF_IEN 0x8 /* interupt enable */
- #define ICF_IV 0xff00 /* interupt vector */
-
- /*
- * Transfer Control Format definitions.
- */
- #define TCF_AM 0xff /* Address Modifier */
- #define AM_SNPDA 0x01 /* Standard Non-Privileged Data Access */
- #define AM_SASA 0x81 /* Standard Ascending Sequential Access */
- #define AM_ENPDA 0xf1 /* Extended Non-Privileged Data Access */
- #define AM_EASA 0xe1 /* Extended Ascending Sequential Access */
- #define TCF_BTE 0x800 /* Block Transfer Enable */
-
- /*
- * Controller Configuration Flags.
- */
- #define CCF_STS 0x1 /* sectors per track selectable */
- #define CCF_EAV 0x2 /* enable auto vector */
- #define CCF_ERR 0x4 /* enable reset register */
- #define CCF_RFE 0x8 /* recovery flag enable */
- #define CCF_XMD 0x60 /* xmd transfer mode (bus size) */
- #define XMD_8BIT 0x20 /* do only 8 bit transfers */
- #define XMD_16BIT 0x40 /* do only 16 bit transfers */
- #define XMD_32BIT 0x60 /* do only 32 bit transfers */
- #define CCF_DIU 0x80 /* disable initial update of DCB @cmd start */
- #define CCF_BSZ 0x300 /* burst size */
- #define BSZ_16WRD 0x000 /* 16 word transfer burst */
- #define BSZ_12WRD 0x100 /* 12 word transfer burst */
- #define BSZ_8WRD 0x200 /* 8 word transfer burst */
- #define BSZ_4WRD 0x300 /* 4 word transfer burst */
- #define CCF_SEN 0x400 /* cylinder/track skew enable (for format) */
- #define CCF_ENP 0x1000 /* enable parity */
- #define CCF_EPE 0x2000 /* enable parity errors */
- #define CCF_EDE 0x10000 /* error detection enable */
- #define CCF_ECE 0x20000 /* error correction enable */
-
- /*
- * Diagnostic register definitions.
- */
- #define DIA_DC 0x7f /* dump count mask */
- #define DIA_DWR 0x80 /* dump write/read flag */
- #define DIA_ARE 0x100 /* auto rebuild enable */
- #define DIA_CEN 0x200 /* call enable flag */
- #define DIA_KEY 0xAA550000 /* reset enable key */
-
- /*
- * Hardware interface flags, in dcb.devselect and d_devflags
- */
- #define VD_ESDI 0x10 /* drive is on ESDI interface */
- #define d_devflags d_drivedata[0] /* in disk label */
-
- /*
- * Error recovery flags.
- */
- #define VDRF_RTZ 0x0001 /* return to zero */
- #define VDRF_OCF 0x0002 /* on cylinder false */
- #define VDRF_OSP 0x0004 /* offset plus */
- #define VDRF_OSM 0x0008 /* offset minus */
- #define VDRF_DSE 0x0080 /* data strobe early */
- #define VDRF_DSL 0x0100 /* data strobe late */
-
- #define VDRF_NONE 0
- #define VDRF_NORMAL (VDRF_RTZ|VDRF_OCF|VDRF_OSP|VDRF_OSM|VDRF_DSE|VDRF_DSL)
-
- /*
- * Perform a reset on the controller.
- */
- #define VDRESET(a,t) { \
- if ((t) == VDTYPE_SMDE) { \
- ((struct vddevice *)(a))->vddfr = DIA_KEY|DIA_CEN; \
- ((struct vddevice *)(a))->vdcdr = (u_long)0xffffffff; \
- DELAY(5000000); \
- } else { \
- ((struct vddevice *)(a))->vdreset = 0; \
- DELAY(1500000); \
- } \
- }
-
- /*
- * Abort a controller operation.
- */
- #define VDABORT(a,t) { \
- if ((t) == VDTYPE_VDDC) { \
- movow((a), (VDOP_ABORT&0xffff0000)>>16) ; \
- movow((int)(a)+2, VDOP_ABORT&0xffff); \
- } else \
- ((struct vddevice *)(a))->vdcdr = (u_long)VDOP_ABORT; \
- DELAY(1000000); \
- }
-
- /*
- * Start a command.
- */
- #define VDGO(a,mdcb,t) {\
- if ((t) == VDTYPE_VDDC) { \
- movow((a), ((int)(mdcb)&0xffff0000)>>16) ; \
- movow((int)((a))+2, (int)(mdcb)&0xffff); \
- } else \
- ((struct vddevice *)(a))->vdcdr = (mdcb); \
- }
-
- /*
- * MDCB layout.
- */
- struct mdcb {
- struct dcb *mdcb_head; /* first dcb in list */
- struct dcb *mdcb_busy; /* dcb being processed */
- struct dcb *mdcb_intr; /* dcb causing interrupt */
- long mdcb_status; /* status of dcb in mdcb_busy */
- };
-
- /*
- * DCB definitions.
- */
-
- /*
- * A disk address.
- */
- typedef struct {
- u_char track; /* all 8 bits */
- u_char sector; /* all 8 bits */
- u_short cylinder; /* low order 12 bits */
- } dskadr;
-
- /*
- * DCB trailer formats.
- */
- /* read/write trailer */
- struct trrw {
- u_long memadr; /* memory address */
- u_long wcount; /* 16 bit word count */
- dskadr disk; /* disk address */
- };
-
- /* scatter/gather trailer */
- #define VDMAXPAGES (MAXPHYS / NBPG)
- struct trsg {
- struct trrw start_addr;
- struct addr_chain {
- u_long nxt_addr;
- u_long nxt_len;
- } addr_chain[VDMAXPAGES + 1];
- };
-
- /* seek trailer format */
- struct trseek {
- dskadr skaddr;
- };
-
- /* format trailer */
- struct trfmt {
- char *addr; /* data buffer to be filled on sector*/
- long nsectors; /* # of sectors to be formatted */
- dskadr disk; /* disk physical address info */
- dskadr hdr; /* header address info */
- };
-
- /* reset/configure trailer */
- struct treset {
- long ncyl; /* # cylinders */
- long nsurfaces; /* # surfaces */
- long nsectors; /* # sectors */
- long slip_sec; /* # of slip sectors */
- long recovery; /* recovery flags */
- };
-
- /* ident trailer */
- struct trid {
- long name;
- long rev;
- long date;
- };
-
- /*
- * DCB layout.
- */
- struct dcb {
- struct dcb *nxtdcb; /* next dcb */
- short intflg; /* interrupt settings and flags */
- short opcode; /* DCB command code etc... */
- long operrsta; /* error & status info */
- short fill; /* not used */
- char devselect; /* drive selection */
- char trailcnt; /* trailer Word Count */
- long err_memadr; /* error memory address */
- u_char err_code; /* error codes for SMD/E */
- char fill2; /* not used */
- short err_wcount; /* error word count */
- char err_trk; /* error track/sector */
- char err_sec; /* error track/sector */
- short err_cyl; /* error cylinder adr */
- union {
- struct trid idtrail; /* ident command trailer */
- struct trseek sktrail; /* seek command trailer */
- struct trsg sgtrail; /* scatter/gather trailer */
- struct trrw rwtrail; /* read/write trailer */
- struct trfmt fmtrail; /* format trailer */
- struct treset rstrail; /* reset/configure trailer */
- } trail;
- };
-
- /*
- * smaller DCB with seek trailer only (no scatter-gather).
- */
- struct skdcb {
- struct dcb *nxtdcb; /* next dcb */
- short intflg; /* interrupt settings and flags */
- short opcode; /* DCB command code etc... */
- long operrsta; /* error & status info */
- short fill; /* not used */
- char devselect; /* drive selection */
- char trailcnt; /* trailer Word Count */
- long err_memadr; /* error memory address */
- u_char err_code; /* error codes for SMD/E */
- char fill2; /* not used */
- short err_wcount; /* error word count */
- char err_trk; /* error track/sector */
- char err_sec; /* error track/sector */
- short err_cyl; /* error cylinder adr */
- union {
- struct trseek sktrail; /* seek command trailer */
- } trail;
- };
-
- /*
- * DCB command codes.
- */
- #define VDOP_RD 0x80 /* read data */
- #define VDOP_FTR 0xc0 /* full track read */
- #define VDOP_RAS 0x90 /* read and scatter */
- #define VDOP_RDRAW 0x600 /* read unformatted disk sector */
- #define VDOP_CMP 0xa0 /* compare */
- #define VDOP_FTC 0xe0 /* full track compare */
- #define VDOP_RHDE 0x180 /* read header, data & ecc */
- #define VDOP_WD 0x00 /* write data */
- #define VDOP_FTW 0x40 /* full track write */
- #define VDOP_WTC 0x20 /* write then compare */
- #define VDOP_FTWTC 0x60 /* full track write then compare */
- #define VDOP_GAW 0x10 /* gather and write */
- #define VDOP_WDE 0x100 /* write data & ecc */
- #define VDOP_FSECT 0x900 /* format sector */
- #define VDOP_GWC 0x30 /* gather write & compare */
- #define VDOP_START 0x800 /* start drives */
- #define VDOP_RELEASE 0xa00 /* stop drives */
- #define VDOP_SEEK 0xb00 /* seek */
- #define VDOP_INIT 0xc00 /* initialize controller */
- #define VDOP_DIAG 0xd00 /* diagnose (self-test) controller */
- #define VDOP_CONFIG 0xe00 /* reset & configure drive */
- #define VDOP_STATUS 0xf00 /* get drive status */
- #define VDOP_IDENT 0x700 /* identify controller */
- #define VDOP_PROBE 0x500 /* probe drives and update status */
-
- #define VDOP_ABORT 0x80000000 /* abort current command */
-
- /*
- * DCB status definitions.
- */
- #define DCBS_HCRC 0x00000001 /* header crc error */
- #define DCBS_HCE 0x00000002 /* header compare error */
- #define DCBS_WPT 0x00000004 /* drive write protected */
- #define DCBS_CHE 0x00000008 /* controller hardware error */
- #define DCBS_SKI 0x00000010 /* seek incomplete */
- #define DCBS_UDE 0x00000020 /* uncorrectable data error */
- #define DCBS_OCYL 0x00000040 /* off cylinder */
- #define DCBS_NRDY 0x00000080 /* drive not ready */
- #define DCBS_ATA 0x00000100 /* alternate track accessed */
- #define DCBS_SKS 0x00000200 /* seek started */
- #define DCBS_IVA 0x00000400 /* invalid disk address error */
- #define DCBS_NEM 0x00000800 /* non-existant memory error */
- #define DCBS_DPE 0x00001000 /* memory data parity error */
- #define DCBS_DCE 0x00002000 /* data compare error */
- #define DCBS_DDI 0x00004000 /* ddi ready */
- #define DCBS_OAB 0x00008000 /* operation aborted */
- #define DCBS_DSE 0x00010000 /* data strobe early */
- #define DCBS_DSL 0x00020000 /* data strobe late */
- #define DCBS_TOP 0x00040000 /* track offset plus */
- #define DCBS_TOM 0x00080000 /* track offset minus */
- #define DCBS_CCD 0x00100000 /* controller corrected data */
- #define DCBS_HARD 0x00200000 /* hard error */
- #define DCBS_SOFT 0x00400000 /* soft error (retry succesful) */
- #define DCBS_ERR 0x00800000 /* composite error */
- #define DCBS_IVC 0x01000000 /* invalid command error */
- /* bits 24-27 unused */
- #define DCBS_BSY 0x10000000 /* controller busy */
- #define DCBS_ICC 0x60000000 /* interrupt cause code */
- #define DCBS_INT 0x80000000 /* interrupt generated for this dcb */
-
- #define VDERRBITS "\20\1HCRC\2HCE\3WPT\4CHE\5DSKI\6UDE\7OCYL\10NRDY\
- \11ATA\12SKS\13IVA\14NEM\15DPE\16DCE\17DDI\20OAB\21DSE\22DSL\23TOP\24TOM\
- \25CCD\26HARD\27SOFT\30ERR\31IVC\35ABORTED\36FAIL\37COMPLETE\40STARTED"
-
- /* drive related errors */
- #define VDERR_DRIVE (DCBS_SKI|DCBS_OCYL|DCBS_NRDY|DCBS_IVA)
- /* controller related errors */
- #define VDERR_CTLR (DCBS_CHE|DCBS_OAB|DCBS_IVC|DCBS_NEM)
- /* potentially recoverable errors */
- #define VDERR_RETRY \
- (VDERR_DRIVE|VDERR_CTLR|DCBS_DCE|DCBS_DPE|DCBS_HCRC|DCBS_HCE)
- /* uncorrected data errors */
- #define VDERR_HARD (VDERR_RETRY|DCBS_WPT|DCBS_UDE)
-
- /*
- * DCB status codes.
- */
- #define DCBS_ABORT 0x10000000 /* dcb aborted */
- #define DCBS_FAIL 0x20000000 /* dcb unsuccesfully completed */
- #define DCBS_DONE 0x40000000 /* dcb complete */
- #define DCBS_START 0x80000000 /* dcb started */
-
- /*
- * DCB interrupt control.
- */
- #define DCBINT_NONE 0x0 /* don't interrupt */
- #define DCBINT_ERR 0x2 /* interrupt on error */
- #define DCBINT_SUC 0x1 /* interrupt on success */
- #define DCBINT_DONE (DCBINT_ERR|DCBINT_SUC)
- #define DCBINT_PBA 0x4 /* proceed before acknowledge */
-
- /*
- * Sector formats.
- */
- typedef union {
- struct {
- dskadr hdr_addr;
- short smd_crc;
- } smd;
- struct {
- dskadr physical;
- dskadr logical;
- long smd_e_crc;
- } smd_e;
- } fmt_hdr;
-
- /* Sector Header bit assignments */
- #define VDMF 0x8000 /* Manufacturer Fault 1=good sector */
- #define VDUF 0x4000 /* User Fault 1=good sector */
- #define VDALT 0x2000 /* Alternate Sector 1=alternate */
- #define VDWPT 0x1000 /* Write Protect 1=Read Only Sector */
-
- /* input register assignments for DIOCWFORMAT ioctl */
- #define dk_op df_reg[0] /* opcode */
- #define dk_althdr df_reg[1] /* alt. sect. dskadr, in an int! */
- #define dk_fmtflags df_reg[2] /* header format flags */
-
- /* output register assignments for DIOCWFORMAT ioctl */
- #define dk_operrsta df_reg[0] /* dcb operrsta */
- #define dk_ecodecnt df_reg[1] /* smd-e ecode and error word count */
- #define dk_ecode(ecodecnt) ((u_long)(ecodecnt) >> 2)
- #define dk_errcnt(ecodecnt) (((ecodecnt) & 0xffff) << 1)
- #define dk_erraddr df_reg[2] /* error dskadr, in an int! */
-