/*      $NetBSD: rdreg.h,v 1.21 2024/02/10 08:24:50 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 {
       uint8_t         c_pad;
       uint8_t         c_unit;
       uint8_t         c_volume;
       uint8_t         c_saddr;
       uint16_t        c_hiaddr;
       uint32_t        c_addr;
       uint8_t         c_nop2;
       uint8_t         c_slen;
       uint32_t        c_len;
       uint8_t         c_cmd;
       uint8_t         c_pad2;
} __attribute__((__packed__));

struct  rd_rscmd {
       uint8_t         c_unit;
       uint8_t         c_sram;
       uint8_t         c_ram;
       uint8_t         c_cmd;
} __attribute__((__packed__));

struct  rd_stat {
       uint8_t         c_vu;
       uint8_t         c_pend;
       uint16_t        c_ref;
       uint16_t        c_fef;
       uint16_t        c_aef;
       uint16_t        c_ief;
       union {
               uint8_t cu_raw[10];
               struct {
                       uint16_t        cu_msw;
                       uint32_t        cu_lsl;
               } cu_sva;
               struct {
                       uint32_t        cu_cyhd;
                       uint16_t        cu_sect;
               } cu_tva;
       } c_pf;
} __attribute__((__packed__));
#define c_raw   c_pf.cu_raw
#define c_blk   c_pf.cu_sva.cu_lsl      /* for now */
#define c_tva   c_pf.cu_tva

struct  rd_ssmcmd {
       uint8_t         c_unit;
       uint8_t         c_cmd;
       uint16_t        c_refm;
       uint16_t        c_fefm;
       uint16_t        c_aefm;
       uint16_t        c_iefm;
} __attribute__((__packed__));

struct  rd_srcmd {
       uint8_t         c_unit;
       uint8_t         c_nop;
       uint8_t         c_cmd;
       uint8_t         c_param;
} __attribute__((__packed__));

struct  rd_clearcmd {
       uint8_t         c_unit;
       uint8_t         c_cmd;
} __attribute__((__packed__));

/* HW ids */
#define RD7946AID       0x220   /* also 7945A and 7941A */
#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 */
#define RD2202AID       0x231   /* from hpdrive.ini.sample */
#define RD7908AID       0x200   /* from hpdrive.ini.sample */
#define RD7911AID       0x204   /* from hpdrive.ini.sample */

/* Drive names -- per identify description structure */
#define RD7945ANAME     "079450"
#define RD9134DNAME     "091340"
#define RD9122SNAME     "091220"
#define RD7912PNAME     "079120"
#define RD7914PNAME     "079140"
#define RD7958ANAME     "079580"
#define RD7957ANAME     "079570"
#define RD7933HNAME     "079330"
#define RD9134LNAME     "091340"
#define RD7936HNAME     "079360"
#define RD7937HNAME     "079370"
#define RD7914CTNAME    "079140"
#define RD9122DNAME     RD9122SNAME
#define RD7957BNAME     "079571"
#define RD7958BNAME     "079581"
#define RD7959BNAME     "079591"
#define RD2200ANAME     "022000"
#define RD2203ANAME     "022030"
#define RD2202ANAME     "022020"
#define RD7908ANAME     "079080"
#define RD7911ANAME     "079110"
#define RD7941ANAME     "079410"

#define RDNAMELEN       6

/* 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 RD2200A         17
#define RD2203A         18
#define RD2202A         19
#define RD7908A         20
#define RD7911A         21
#define RD7941A         22

#define NRD7945ABPT     16
#define NRD7945ATRK     7
#define NRD7945ACYL     968
#define NRD7945ABLK     108416

#define NRD9134DBPT     16
#define NRD9134DTRK     6
#define NRD9134DCYL     303
#define NRD9134DBLK     29088

#define NRD9122SBPT     8
#define NRD9122STRK     2
#define NRD9122SCYL     77
#define NRD9122SBLK     1232

#define NRD7912PBPT     32
#define NRD7912PTRK     7
#define NRD7912PCYL     572
#define NRD7912PBLK     128128

#define NRD7914PBPT     32
#define NRD7914PTRK     7
#define NRD7914PCYL     1152
#define NRD7914PBLK     258048

#define NRD7933HBPT     46
#define NRD7933HTRK     13
#define NRD7933HCYL     1321
#define NRD7933HBLK     789958

#define NRD9134LBPT     16
#define NRD9134LTRK     5
#define NRD9134LCYL     973
#define NRD9134LBLK     77840

#define NRD7911ABPT     32
#define NRD7911ATRK     3
#define NRD7911ACYL     572
#define NRD7911ABLK     54912

#define NRD7941ABPT     16
#define NRD7941ATRK     3
#define NRD7941ACYL     968
#define NRD7941ABLK     46464

/*
* 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
* -----        ---------------         ---------------         --------------
* 7936H:       123 x  7 x 1396          25 x  7 x 1716         123 x  7 x  698
* 7937H:       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
* 2202A:       113 x 16 x 1449         113 x  4 x 1449         113 x  8 x 1449
*
* 7908A:        35 x  5 x  370         ??? x  ? x  ???          35 x  5 x  185
*/
#define NRD7936HBPT     123
#define NRD7936HTRK     7
#define NRD7936HCYL     698
#define NRD7936HBLK     600978

#define NRD7937HBPT     123
#define NRD7937HTRK     13
#define NRD7937HCYL     698
#define NRD7937HBLK     1116102

#define NRD7957ABPT     22
#define NRD7957ATRK     7
#define NRD7957ACYL     1036
#define NRD7957ABLK     159544

#define NRD7958ABPT     36
#define NRD7958ATRK     7
#define NRD7958ACYL     1013
#define NRD7958ABLK     255276

#define NRD7957BBPT     18
#define NRD7957BTRK     7
#define NRD7957BCYL     1269
#define NRD7957BBLK     159894

#define NRD7958BBPT     42
#define NRD7958BTRK     9
#define NRD7958BCYL     786
#define NRD7958BBLK     297108

#define NRD7959BBPT     42
#define NRD7959BTRK     9
#define NRD7959BCYL     1572
#define NRD7959BBLK     594216

#define NRD2200ABPT     113
#define NRD2200ATRK     4
#define NRD2200ACYL     1449
#define NRD2200ABLK     654948

#define NRD2203ABPT     113
#define NRD2203ATRK     8
#define NRD2203ACYL     1449
#define NRD2203ABLK     1309896

#define NRD2202ABPT     113
#define NRD2202ATRK     8
#define NRD2202ACYL     1449
#define NRD2202ABLK     1309896

#define NRD7908ABPT     35
#define NRD7908ATRK     5
#define NRD7908ACYL     185
#define NRD7908ABLK     32375

/* controller "unit" number */
#define RDCTLR          15

/* 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)      ((uint32_t)(tva).cu_cyhd >> 8)
#define RDHEAD(tva)     ((tva).cu_cyhd & 0xFF)
#define RDSECT(tva)     ((tva).cu_sect)

#define REF_MASK        0x0
#define FEF_MASK        0x0
#define AEF_MASK        0x0
#define IEF_MASK        0xF970

#define FEF_CU          0x4000  /* cross-unit */
#define FEF_DR          0x0080  /* diagnostic result */
#define FEF_IMR         0x0008  /* internal maintenance release */
#define FEF_PF          0x0002  /* power fail */
#define FEF_REXMT       0x0001  /* retransmit */
#define AEF_UD          0x0040  /* unrecoverable data */
#define IEF_RRMASK      0xe000  /* request release bits */
#define IEF_MD          0x0020  /* marginal data */
#define IEF_RD          0x0010  /* recoverable data */

#define C_READ          0x00
#define C_RAM           0x00    /* single vector (i.e. sector number) */
#define C_WRITE         0x02
#define C_CLEAR         0x08
#define C_STATUS        0x0d
#define C_SADDR         0x10
#define C_SLEN          0x18
#define C_SUNIT(x)      (0x20 | (x))
#define C_SVOL(x)       (0x40 | (x))
#define C_NOP           0x34
#define C_DESC          0x35
#define C_SREL          0x3b
#define C_SSM           0x3e
#define C_SRAM          0x48
#define C_REL           0xc0

#define C_CMD           0x05
#define C_EXEC          0x0e
#define C_QSTAT         0x10
#define C_TCMD          0x12

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