* Copyright (c) 1988 University of Utah.

/* $NetBSD: rdreg.h,v 1.7 2024/02/10 08:24:51 andvar Exp $ */

/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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. 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.
*
* from: Utah $Hdr: rdreg.h 1.2 90/10/12$
*
* @(#)rdreg.h 8.1 (Berkeley) 6/10/93
*/

struct rd_iocmd {
u_int8_t c_pad; /* alignment */
u_int8_t c_unit; /* punit */
u_int8_t c_volume; /* CS80CMD_SVOL(0) */
u_int8_t c_saddr; /* CS80CMD_SADDR */
u_int16_t c_hiaddr; /* always 0 */
u_int32_t c_addr; /* blkno */
u_int8_t c_nop2; /* CS80CMD_NOP - 32-bit alignment */
u_int8_t c_slen; /* CS80CMD_SLEN */
u_int32_t c_len; /* number of sectors */
u_int8_t c_cmd; /* CS80CMD_READ/CS80CMD_WRITE */
} __packed;

struct rd_rscmd { /* different */
u_int8_t c_unit;
u_int8_t c_sram;
u_int8_t c_ram;
u_int8_t c_cmd;
} __packed;

/* HW ids */
#define RD7946AID 0x220 /* also 7945A */
#define RD9134DID 0x221 /* also 9122S */
#define RD9134LID 0x222 /* also 9122D */
#define RD7912PID 0x209
#define RD7914CTID 0x20A
#define RD7914PID 0x20B
#define RD7958AID 0x22B
#define RD7957AID 0x22A
#define RD7933HID 0x212
#define RD7936HID 0x213 /* just guessing -- as of yet unknown */
#define RD7937HID 0x214
#define RD7957BID 0x22C /* another guess based on 7958B */
#define RD7958BID 0x22D
#define RD7959BID 0x22E /* another guess based on 7958B */
#define RD2200AID 0x22F
#define RD2203AID 0x230 /* yet another guess */

/* SW ids -- indices into rdidentinfo, order is arbitrary */
#define RD7945A 0
#define RD9134D 1
#define RD9122S 2
#define RD7912P 3
#define RD7914P 4
#define RD7958A 5
#define RD7957A 6
#define RD7933H 7
#define RD9134L 8
#define RD7936H 9
#define RD7937H 10
#define RD7914CT 11
#define RD7946A 12
#define RD9122D 13
#define RD7957B 14
#define RD7958B 15
#define RD7959B 16

#define NRD7945ABPT 16
#define NRD7945ATRK 7
#define NRD9134DBPT 16
#define NRD9134DTRK 6
#define NRD9122SBPT 8
#define NRD9122STRK 2
#define NRD7912PBPT 32
#define NRD7912PTRK 7
#define NRD7914PBPT 32
#define NRD7914PTRK 7
#define NRD7933HBPT 46
#define NRD7933HTRK 13
#define NRD9134LBPT 16
#define NRD9134LTRK 5

/*
* Several HP drives have an odd number of 256 byte sectors per track.
* This makes it rather difficult to break them into 512 and 1024 byte blocks.
* So...we just do like HPUX and don't bother to respect hardware track/head
* boundaries -- we just mold the disk so that we use the entire capacity.
* HPUX also sometimes doesn't abide by cylinder boundaries, we attempt to
* whenever possible.
*
* DISK REAL (256 BPS) HPUX (1024 BPS) BSD (512 BPS)
* SPT x HD x CYL SPT x HD x CYL SPT x HD x CYL
* ----- --------------- --------------- --------------
* 7936: 123 x 7 x 1396 25 x 7 x 1716 123 x 7 x 698
* 7937: 123 x 13 x 1396 25 x 16 x 1395 123 x 13 x 698
*
* 7957A: 63 x 5 x 1013 11 x 7 x 1036 22 x 7 x 1036
* 7958A: 63 x 8 x 1013 21 x 6 x 1013 36 x 7 x 1013
*
* 7957B: 63 x 4 x 1269 9 x 7 x 1269 18 x 7 x 1269
* 7958B: 63 x 6 x 1572 21 x 9 x 786 42 x 9 x 786
* 7959B: 63 x 12 x 1572 21 x 9 x 1572 42 x 9 x 1572
*
* 2200A: 113 x 8 x 1449 113 x 2 x 1449 113 x 4 x 1449
* 2203A: 113 x 16 x 1449 113 x 4 x 1449 113 x 8 x 1449
*/
#define NRD7936HBPT 123
#define NRD7936HTRK 7
#define NRD7937HBPT 123
#define NRD7937HTRK 13
#define NRD7957ABPT 22
#define NRD7957ATRK 7
#define NRD7958ABPT 36
#define NRD7958ATRK 7
#define NRD7957BBPT 18
#define NRD7957BTRK 7
#define NRD7958BBPT 42
#define NRD7958BTRK 9
#define NRD7959BBPT 42
#define NRD7959BTRK 9
#define NRD2200ABPT 113
#define NRD2200ATRK 4
#define NRD2203ABPT 113
#define NRD2203ATRK 8

/* convert 512 byte count into DEV_BSIZE count */
#define RDSZ(x) ((x) >> (DEV_BSHIFT-9))

/* convert block number into sector number and back */
#define RDBTOS(x) ((x) << (DEV_BSHIFT-8))
#define RDSTOB(x) ((x) >> (DEV_BSHIFT-8))

/* extract cyl/head/sect info from three-vector address */
#define RDCYL(tva) ((u_int32_t)(tva).cu_cyhd >> 8)
#define RDHEAD(tva) ((tva).cu_cyhd & 0xFF)
#define RDSECT(tva) ((tva).cu_sect)