/*	$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