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Diffstat (limited to 'sys/arch/arm32/mainbus/wdreg.h')
| -rw-r--r-- | sys/arch/arm32/mainbus/wdreg.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/sys/arch/arm32/mainbus/wdreg.h b/sys/arch/arm32/mainbus/wdreg.h new file mode 100644 index 00000000000..12311b76e60 --- /dev/null +++ b/sys/arch/arm32/mainbus/wdreg.h @@ -0,0 +1,161 @@ +/* $NetBSD: wdreg.h,v 1.1 1996/01/31 23:25:18 mark Exp $ */ + +/*- + * Copyright (c) 1991 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * 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. + * + * @(#)wdreg.h 7.1 (Berkeley) 5/9/91 + */ + +/* + * Disk Controller register definitions. + */ +#define wd_data 0x000 /* data register (R/W - 16 bits) */ +#define wd_error 0x004 /* error register (R) */ +#define wd_precomp 0x004 /* write precompensation (W) */ +#define wd_features 0x004 /* features (W) */ +#define wd_seccnt 0x008 /* sector count (R/W) */ +#define wd_sector 0x00c /* first sector number (R/W) */ +#define wd_cyl_lo 0x010 /* cylinder address, low byte (R/W) */ +#define wd_cyl_hi 0x014 /* cylinder address, high byte (R/W) */ +#define wd_sdh 0x018 /* sector size/drive/head (R/W) */ +#define wd_command 0x01c /* command register (W) */ +#define wd_status 0x01c /* immediate status (R) */ + +#define wd_altsts 0x818 /* alternate fixed disk status (via 1015) (R) */ +#define wd_ctlr 0x818 /* fixed disk controller control (via 1015) (W) */ +#define WDCTL_4BIT 0x08 /* use four head bits (wd1003) */ +#define WDCTL_RST 0x04 /* reset the controller */ +#define WDCTL_IDS 0x02 /* disable controller interrupts */ +#define wd_digin 0x81c /* disk controller input (via 1015) (R) */ + +/* + * Status bits. + */ +#define WDCS_BSY 0x80 /* busy */ +#define WDCS_DRDY 0x40 /* drive ready */ +#define WDCS_DWF 0x20 /* drive write fault */ +#define WDCS_DSC 0x10 /* drive seek complete */ +#define WDCS_DRQ 0x08 /* data request */ +#define WDCS_CORR 0x04 /* corrected data */ +#define WDCS_IDX 0x02 /* index */ +#define WDCS_ERR 0x01 /* error */ +#define WDCS_BITS "\020\010bsy\007drdy\006dwf\005dsc\004drq\003corr\002idx\001err" + +/* + * Error bits. + */ +#define WDCE_BBK 0x80 /* bad block detected */ +#define WDCE_UNC 0x40 /* uncorrectable data error */ +#define WDCE_MC 0x20 /* media changed */ +#define WDCE_IDNF 0x10 /* id not found */ +#define WDCE_ABRT 0x08 /* aborted command */ +#define WDCE_MCR 0x04 /* media change requested */ +#define WDCE_TK0NF 0x02 /* track 0 not found */ +#define WDCE_AMNF 0x01 /* address mark not found */ +#define WDERR_BITS "\020\010bbk\007unc\006mc\005idnf\004mcr\003abrt\002tk0nf\001amnf" + +/* + * Commands for Disk Controller. + */ +#define WDCC_RECAL 0x10 /* disk restore code -- resets cntlr */ + +#define WDCC_READ 0x20 /* disk read code */ +#define WDCC_WRITE 0x30 /* disk write code */ +#define WDCC__LONG 0x02 /* modifier -- access ecc bytes */ +#define WDCC__NORETRY 0x01 /* modifier -- no retrys */ + +#define WDCC_FORMAT 0x50 /* disk format code */ +#define WDCC_DIAGNOSE 0x90 /* controller diagnostic */ +#define WDCC_IDP 0x91 /* initialize drive parameters */ + +#define WDCC_READMULTI 0xc4 /* read multiple */ +#define WDCC_WRITEMULTI 0xc5 /* write multiple */ +#define WDCC_SETMULTI 0xc6 /* set multiple mode */ + +#define WDCC_READDMA 0xc8 /* read with DMA */ +#define WDCC_WRITEDMA 0xca /* write with DMA */ + +#define WDCC_ACKMC 0xdb /* acknowledge media change */ +#define WDCC_LOCK 0xde /* lock drawer */ +#define WDCC_UNLOCK 0xdf /* unlock drawer */ + +#define WDCC_IDENTIFY 0xec /* read parameters from controller */ +#define WDCC_CACHEC 0xef /* cache control */ + +#define WDSD_IBM 0xa0 /* forced to 512 byte sector, ecc */ +#define WDSD_CHS 0x00 /* cylinder/head/sector addressing */ +#define WDSD_LBA 0x40 /* logical block addressing */ + + +#ifdef _KERNEL +/* + * read parameters command returns this: + */ +struct wdparams { + /* drive info */ + short wdp_config; /* general configuration */ +#define WD_CFG_REMOVABLE 0x0080 +#define WD_CFG_FIXED 0x0040 + short wdp_cylinders; /* number of non-removable cylinders */ + char __reserved1[2]; + short wdp_heads; /* number of heads */ + short wdp_unfbytespertrk; /* number of unformatted bytes/track */ + short wdp_unfbytespersec; /* number of unformatted bytes/sector */ + short wdp_sectors; /* number of sectors */ + char wdp_vendor1[6]; + /* controller info */ + char wdp_serial[20]; /* serial number */ + short wdp_buftype; /* buffer type */ +#define WD_BUF_SINGLEPORTSECTOR 1 /* single port, single sector buffer */ +#define WD_BUF_DUALPORTMULTI 2 /* dual port, multiple sector buffer */ +#define WD_BUF_DUALPORTMULTICACHE 3 /* above plus track cache */ + short wdp_bufsize; /* buffer size, in 512-byte units */ + short wdp_eccbytes; /* ecc bytes appended */ + char wdp_revision[8]; /* firmware revision */ + char wdp_model[40]; /* model name */ + u_char wdp_maxmulti; /* maximum sectors per interrupt */ + char wdp_vendor2[1]; + short wdp_usedmovsd; /* can use double word read/write? */ + char wdp_vendor3[1]; + char wdp_capabilities; /* capability flags */ +#define WD_CAP_LBA 0x02 +#define WD_CAP_DMA 0x01 + char __reserved2[2]; + char wdp_vendor4[1]; + char wdp_piotiming; /* PIO timing mode */ + char wdp_vendor5[1]; + char wdp_dmatiming; /* DMA timing mode */ +}; +#endif /* _KERNEL */ |