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uae-0.8.9
/* @(#)scgcmd.h 2.14 98/11/29 Copyright 1986 J. Schilling */
/*
* Definitions for the SCSI general driver 'scg'
*
* Copyright (c) 1986 J. Schilling
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _SCGCMD_H
#define _SCGCMD_H
#include "scg/utypes.h"
#include "scg/btorder.h"
#if defined(_BIT_FIELDS_LTOH) /* Intel byteorder */
#elif defined(_BIT_FIELDS_HTOL) /* Motorola byteorder */
#else
/*
* #error will not work for all compilers (e.g. sunos4)
* The following line will abort compilation on all compilers
* if none of the above is defines. And that's what we want.
*/
error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined
#endif
/*
* SCSI status completion block.
*/
#define SCSI_EXTENDED_STATUS
#if defined(_BIT_FIELDS_LTOH) /* Intel byteorder */
struct scsi_status {
Ucbit vu_00 : 1; /* vendor unique */
Ucbit chk : 1; /* check condition: sense data available */
Ucbit cm : 1; /* condition met */
Ucbit busy : 1; /* device busy or reserved */
Ucbit is : 1; /* intermediate status sent */
Ucbit vu_05 : 1; /* vendor unique */
#define st_scsi2 vu_05 /* SCSI-2 modifier bit */
Ucbit vu_06 : 1; /* vendor unique */
Ucbit st_rsvd : 1; /* reserved */
#ifdef SCSI_EXTENDED_STATUS
#define ext_st1 st_rsvd /* extended status (next byte valid) */
/* byte 1 */
Ucbit ha_er : 1; /* host adapter detected error */
Ucbit reserved: 6; /* reserved */
Ucbit ext_st2 : 1; /* extended status (next byte valid) */
/* byte 2 */
u_char byte2; /* third byte */
#endif /* SCSI_EXTENDED_STATUS */
};
#else /* Motorola byteorder */
struct scsi_status {
Ucbit st_rsvd : 1; /* reserved */
Ucbit vu_06 : 1; /* vendor unique */
Ucbit vu_05 : 1; /* vendor unique */
#define st_scsi2 vu_05 /* SCSI-2 modifier bit */
Ucbit is : 1; /* intermediate status sent */
Ucbit busy : 1; /* device busy or reserved */
Ucbit cm : 1; /* condition met */
Ucbit chk : 1; /* check condition: sense data available */
Ucbit vu_00 : 1; /* vendor unique */
#ifdef SCSI_EXTENDED_STATUS
#define ext_st1 st_rsvd /* extended status (next byte valid) */
/* byte 1 */
Ucbit ext_st2 : 1; /* extended status (next byte valid) */
Ucbit reserved: 6; /* reserved */
Ucbit ha_er : 1; /* host adapter detected error */
/* byte 2 */
u_char byte2; /* third byte */
#endif /* SCSI_EXTENDED_STATUS */
};
#endif
/*
* OLD Standard (Non Extended) SCSI Sense. Used mainly by the
* Adaptec ACB 4000 which is the only controller that
* does not support the Extended sense format.
*/
#if defined(_BIT_FIELDS_LTOH) /* Intel byteorder */
struct scsi_sense { /* scsi sense for error classes 0-6 */
Ucbit code : 7; /* error class/code */
Ucbit adr_val : 1; /* sense data is valid */
#ifdef comment
Ucbit high_addr:5; /* high byte of block addr */
Ucbit rsvd : 3;
#else
u_char high_addr; /* high byte of block addr */
#endif
u_char mid_addr; /* middle byte of block addr */
u_char low_addr; /* low byte of block addr */
};
#else /* Motorola byteorder */
struct scsi_sense { /* scsi sense for error classes 0-6 */
Ucbit adr_val : 1; /* sense data is valid */
Ucbit code : 7; /* error class/code */
#ifdef comment
Ucbit rsvd : 3;
Ucbit high_addr:5; /* high byte of block addr */
#else
u_char high_addr; /* high byte of block addr */
#endif
u_char mid_addr; /* middle byte of block addr */
u_char low_addr; /* low byte of block addr */
};
#endif
/*
* SCSI extended sense parameter block.
*/
#ifdef comment
#define SC_CLASS_EXTENDED_SENSE 0x7 /* indicates extended sense */
#endif
#if defined(_BIT_FIELDS_LTOH) /* Intel byteorder */
struct scsi_ext_sense { /* scsi extended sense for error class 7 */
/* byte 0 */
Ucbit type : 7; /* fixed at 0x70 */
Ucbit adr_val : 1; /* sense data is valid */
/* byte 1 */
u_char seg_num; /* segment number, applies to copy cmd only */
/* byte 2 */
Ucbit key : 4; /* sense key, see below */
Ucbit : 1; /* reserved */
Ucbit ili : 1; /* incorrect length indicator */
Ucbit eom : 1; /* end of media */
Ucbit fil_mk : 1; /* file mark on device */
/* bytes 3 through 7 */
u_char info_1; /* information byte 1 */
u_char info_2; /* information byte 2 */
u_char info_3; /* information byte 3 */
u_char info_4; /* information byte 4 */
u_char add_len; /* number of additional bytes */
/* bytes 8 through 13, CCS additions */
u_char optional_8; /* CCS search and copy only */
u_char optional_9; /* CCS search and copy only */
u_char optional_10; /* CCS search and copy only */
u_char optional_11; /* CCS search and copy only */
u_char sense_code; /* sense code */
u_char qual_code; /* sense code qualifier */
u_char fru_code; /* Field replacable unit code */
Ucbit bptr : 3; /* bit pointer for failure (if bpv) */
Ucbit bpv : 1; /* bit pointer is valid */
Ucbit : 2;
Ucbit cd : 1; /* pointers refer to command not data */
Ucbit sksv : 1; /* sense key specific valid */
u_char field_ptr[2]; /* field pointer for failure */
u_char add_info[2]; /* round up to 20 bytes */
};
#else /* Motorola byteorder */
struct scsi_ext_sense { /* scsi extended sense for error class 7 */
/* byte 0 */
Ucbit adr_val : 1; /* sense data is valid */
Ucbit type : 7; /* fixed at 0x70 */
/* byte 1 */
u_char seg_num; /* segment number, applies to copy cmd only */
/* byte 2 */
Ucbit fil_mk : 1; /* file mark on device */
Ucbit eom : 1; /* end of media */
Ucbit ili : 1; /* incorrect length indicator */
Ucbit : 1; /* reserved */
Ucbit key : 4; /* sense key, see below */
/* bytes 3 through 7 */
u_char info_1; /* information byte 1 */
u_char info_2; /* information byte 2 */
u_char info_3; /* information byte 3 */
u_char info_4; /* information byte 4 */
u_char add_len; /* number of additional bytes */
/* bytes 8 through 13, CCS additions */
u_char optional_8; /* CCS search and copy only */
u_char optional_9; /* CCS search and copy only */
u_char optional_10; /* CCS search and copy only */
u_char optional_11; /* CCS search and copy only */
u_char sense_code; /* sense code */
u_char qual_code; /* sense code qualifier */
u_char fru_code; /* Field replacable unit code */
Ucbit sksv : 1; /* sense key specific valid */
Ucbit cd : 1; /* pointers refer to command not data */
Ucbit : 2;
Ucbit bpv : 1; /* bit pointer is valid */
Ucbit bptr : 3; /* bit pointer for failure (if bpv) */
u_char field_ptr[2]; /* field pointer for failure */
u_char add_info[2]; /* round up to 20 bytes */
};
#endif
/*
* SCSI Operation codes.
*/
#define SC_TEST_UNIT_READY 0x00
#define SC_REZERO_UNIT 0x01
#define SC_REQUEST_SENSE 0x03
#define SC_FORMAT 0x04
#define SC_FORMAT_TRACK 0x06
#define SC_REASSIGN_BLOCK 0x07 /* CCS only */
#define SC_SEEK 0x0b
#define SC_TRANSLATE 0x0f /* ACB4000 only */
#define SC_INQUIRY 0x12 /* CCS only */
#define SC_MODE_SELECT 0x15
#define SC_RESERVE 0x16
#define SC_RELEASE 0x17
#define SC_MODE_SENSE 0x1a
#define SC_START 0x1b
#define SC_READ_DEFECT_LIST 0x37 /* CCS only, group 1 */
#define SC_READ_BUFFER 0x3c /* CCS only, group 1 */
/*
* Note, these two commands use identical command blocks for all
* controllers except the Adaptec ACB 4000 which sets bit 1 of byte 1.
*/
#define SC_READ 0x08
#define SC_WRITE 0x0a
#define SC_EREAD 0x28 /* 10 byte read */
#define SC_EWRITE 0x2a /* 10 byte write */
#define SC_WRITE_VERIFY 0x2e /* 10 byte write+verify */
#define SC_WRITE_FILE_MARK 0x10
#define SC_UNKNOWN 0xff /* cmd list terminator */
/*
* Messages that SCSI can send.
*/
#define SC_COMMAND_COMPLETE 0x00
#define SC_SYNCHRONOUS 0x01
#define SC_SAVE_DATA_PTR 0x02
#define SC_RESTORE_PTRS 0x03
#define SC_DISCONNECT 0x04
#define SC_ABORT 0x06
#define SC_MSG_REJECT 0x07
#define SC_NO_OP 0x08
#define SC_PARITY 0x09
#define SC_IDENTIFY 0x80
#define SC_DR_IDENTIFY 0xc0
#define SC_DEVICE_RESET 0x0c
/*
* Standard SCSI control blocks.
* These go in or out over the SCSI bus.
*/
#if defined(_BIT_FIELDS_LTOH) /* Intel byteorder */
struct scsi_g0cdb { /* scsi group 0 command description block */
u_char cmd; /* command code */
Ucbit high_addr : 5; /* high part of block address */
Ucbit lun : 3; /* logical unit number */
u_char mid_addr; /* middle part of block address */
u_char low_addr; /* low part of block address */
u_char count; /* transfer length */
Ucbit link : 1; /* link (another command follows) */
Ucbit fr : 1; /* flag request (interrupt at completion) */
Ucbit rsvd : 4; /* reserved */
Ucbit vu_56 : 1; /* vendor unique (byte 5 bit 6) */
Ucbit vu_57 : 1; /* vendor unique (byte 5 bit 7) */
};
#else /* Motorola byteorder */
struct scsi_g0cdb { /* scsi group 0 command description block */
u_char cmd; /* command code */
Ucbit lun : 3; /* logical unit number */
Ucbit high_addr : 5; /* high part of block address */
u_char mid_addr; /* middle part of block address */
u_char low_addr; /* low part of block address */
u_char count; /* transfer length */
Ucbit vu_57 : 1; /* vendor unique (byte 5 bit 7) */
Ucbit vu_56 : 1; /* vendor unique (byte 5 bit 6) */
Ucbit rsvd : 4; /* reserved */
Ucbit fr : 1; /* flag request (interrupt at completion) */
Ucbit link : 1; /* link (another command follows) */
};
#endif
#if defined(_BIT_FIELDS_LTOH) /* Intel byteorder */
struct scsi_g1cdb { /* scsi group 1 command description block */
u_char cmd; /* command code */
Ucbit reladr : 1; /* address is relative */
Ucbit res : 4; /* reserved bits 1-4 of byte 1 */
Ucbit lun : 3; /* logical unit number */
u_char addr[4]; /* logical block address */
u_char res6; /* reserved byte 6 */
u_char count[2]; /* transfer length */
Ucbit link : 1; /* link (another command follows) */
Ucbit fr : 1; /* flag request (interrupt at completion) */
Ucbit rsvd : 4; /* reserved */
Ucbit vu_96 : 1; /* vendor unique (byte 5 bit 6) */
Ucbit vu_97 : 1; /* vendor unique (byte 5 bit 7) */
};
#else /* Motorola byteorder */
struct scsi_g1cdb { /* scsi group 1 command description block */
u_char cmd; /* command code */
Ucbit lun : 3; /* logical unit number */
Ucbit res : 4; /* reserved bits 1-4 of byte 1 */
Ucbit reladr : 1; /* address is relative */
u_char addr[4]; /* logical block address */
u_char res6; /* reserved byte 6 */
u_char count[2]; /* transfer length */
Ucbit vu_97 : 1; /* vendor unique (byte 5 bit 7) */
Ucbit vu_96 : 1; /* vendor unique (byte 5 bit 6) */
Ucbit rsvd : 4; /* reserved */
Ucbit fr : 1; /* flag request (interrupt at completion) */
Ucbit link : 1; /* link (another command follows) */
};
#endif
#if defined(_BIT_FIELDS_LTOH) /* Intel byteorder */
struct scsi_g5cdb { /* scsi group 5 command description block */
u_char cmd; /* command code */
Ucbit reladr : 1; /* address is relative */
Ucbit res : 4; /* reserved bits 1-4 of byte 1 */
Ucbit lun : 3; /* logical unit number */
u_char addr[4]; /* logical block address */
u_char count[4]; /* transfer length */
u_char res10; /* reserved byte 10 */
Ucbit link : 1; /* link (another command follows) */
Ucbit fr : 1; /* flag request (interrupt at completion) */
Ucbit rsvd : 4; /* reserved */
Ucbit vu_B6 : 1; /* vendor unique (byte B bit 6) */
Ucbit vu_B7 : 1; /* vendor unique (byte B bit 7) */
};
#else /* Motorola byteorder */
struct scsi_g5cdb { /* scsi group 5 command description block */
u_char cmd; /* command code */
Ucbit lun : 3; /* logical unit number */
Ucbit res : 4; /* reserved bits 1-4 of byte 1 */
Ucbit reladr : 1; /* address is relative */
u_char addr[4]; /* logical block address */
u_char count[4]; /* transfer length */
u_char res10; /* reserved byte 10 */
Ucbit vu_B7 : 1; /* vendor unique (byte B bit 7) */
Ucbit vu_B6 : 1; /* vendor unique (byte B bit 6) */
Ucbit rsvd : 4; /* reserved */
Ucbit fr : 1; /* flag request (interrupt at completion) */
Ucbit link : 1; /* link (another command follows) */
};
#endif
#define SC_G0_CDBLEN 6 /* Len of Group 0 commands */
#define SC_G1_CDBLEN 10 /* Len of Group 1 commands */
#define SC_G5_CDBLEN 12 /* Len of Group 5 commands */
#define SCG_MAX_CMD 24 /* 24 bytes max. size is supported */
#define SCG_MAX_STATUS 3 /* XXX (sollte 4 allign.) Mamimum Status Len */
#define SCG_MAX_SENSE 32 /* Mamimum Sense Len for auto Req. Sense */
#define DEF_SENSE_LEN 16 /* Default Sense Len */
#define CCS_SENSE_LEN 18 /* Sense Len for CCS compatible devices */
struct scg_cmd {
caddr_t addr; /* Address of data in user space */
int size; /* DMA count for data transfer */
int flags; /* see below for definition */
int cdb_len; /* Size of SCSI command in bytes */
/* NOTE: rel 4 uses this field only */
/* with commands not in group 1 or 2*/
int sense_len; /* for intr() if -1 don't get sense */
int timeout; /* timeout in seconds */
/* NOTE: actual resolution depends */
/* on driver implementation */
int kdebug; /* driver kernel debug level */
int resid; /* Bytes not transfered */
int error; /* Error code from scgintr() */
int ux_errno; /* UNIX error code */
#ifdef comment
XXX struct scsi_status scb; ??? /* Status returnd by command */
#endif
union {
struct scsi_status Scb;/* Status returnd by command */
u_char cmd_scb[SCG_MAX_STATUS];
} u_scb;
#define scb u_scb.Scb
#ifdef comment
XXX struct scsi_sense sense; ??? /* Sense bytes from command */
#endif
union {
struct scsi_sense Sense;/* Sense bytes from command */
u_char cmd_sense[SCG_MAX_SENSE];
} u_sense;
#define sense u_sense.Sense
int sense_count; /* Number of bytes valid in sense */
int target; /* SCSI target id */
union { /* SCSI command descriptor block */
struct scsi_g0cdb g0_cdb;
struct scsi_g1cdb g1_cdb;
struct scsi_g5cdb g5_cdb;
u_char cmd_cdb[SCG_MAX_CMD];
} cdb; /* 24 bytes max. size is supported */
};
#define dma_read flags /* 1 if DMA to Sun, 0 otherwise */
/*
* definition for flags field in scg_cmd struct
*/
#define SCG_RECV_DATA 0x0001 /* DMA direction to Sun */
#define SCG_DISRE_ENA 0x0002 /* enable disconnect/reconnect */
#define SCG_SILENT 0x0004 /* be silent on errors */
#define SCG_CMD_RETRY 0x0008 /* enable retries */
#define SCG_NOPARITY 0x0010 /* disable parity for this command */
/*
* definition for error field in scg_cmd struct
*
* The codes refer to SCSI general errors, not to device
* specific errors. Device specific errors are discovered
* by checking the sense data.
* The distinction between retryable and fatal is somewhat ad hoc.
*/
#define SCG_NO_ERROR 0 /* cdb transported without error */
#define SCG_RETRYABLE 1 /* any other case */
#define SCG_FATAL 2 /* could not select target */
#define SCG_TIMEOUT 3 /* driver timed out */
#define g0_cdbaddr(cdb, a) ((cdb)->high_addr = (a) >> 16,\
(cdb)->mid_addr = ((a) >> 8) & 0xFF,\
(cdb)->low_addr = (a) & 0xFF)
#define g1_cdbaddr(cdb, a) ((cdb)->addr[0] = (a) >> 24,\
(cdb)->addr[1] = ((a) >> 16)& 0xFF,\
(cdb)->addr[2] = ((a) >> 8) & 0xFF,\
(cdb)->addr[3] = (a) & 0xFF)
#define g5_cdbaddr(cdb, a) g1_cdbaddr(cdb, a)
#define g0_cdblen(cdb, len) ((cdb)->count = (len))
#define g1_cdblen(cdb, len) ((cdb)->count[0] = ((len) >> 8) & 0xFF,\
(cdb)->count[1] = (len) & 0xFF)
#define g5_cdblen(cdb, len) ((cdb)->count[0] = (len) >> 24L,\
(cdb)->count[1] = ((len) >> 16L)& 0xFF,\
(cdb)->count[2] = ((len) >> 8L) & 0xFF,\
(cdb)->count[3] = (len) & 0xFF)
#define i_to_long(a, i) (((u_char *)(a))[0] = ((i) >> 24)& 0xFF,\
((u_char *)(a))[1] = ((i) >> 16)& 0xFF,\
((u_char *)(a))[2] = ((i) >> 8) & 0xFF,\
((u_char *)(a))[3] = (i) & 0xFF)
#define i_to_3_byte(a, i) (((u_char *)(a))[0] = ((i) >> 16)& 0xFF,\
((u_char *)(a))[1] = ((i) >> 8) & 0xFF,\
((u_char *)(a))[2] = (i) & 0xFF)
#define i_to_4_byte(a, i) (((u_char *)(a))[0] = ((i) >> 24)& 0xFF,\
((u_char *)(a))[1] = ((i) >> 16)& 0xFF,\
((u_char *)(a))[2] = ((i) >> 8) & 0xFF,\
((u_char *)(a))[3] = (i) & 0xFF)
#define i_to_short(a, i) (((u_char *)(a))[0] = ((i) >> 8) & 0xFF,\
((u_char *)(a))[1] = (i) & 0xFF)
#define a_to_u_short(a) ((unsigned short) \
((((unsigned char*) a)[1] & 0xFF) | \
(((unsigned char*) a)[0] << 8 & 0xFF00)))
#define a_to_3_byte(a) ((unsigned long) \
((((unsigned char*) a)[2] & 0xFF) | \
(((unsigned char*) a)[1] << 8 & 0xFF00) | \
(((unsigned char*) a)[0] << 16 & 0xFF0000)))
#ifdef __STDC__
#define a_to_u_long(a) ((unsigned long) \
((((unsigned char*) a)[3] & 0xFF) | \
(((unsigned char*) a)[2] << 8 & 0xFF00) | \
(((unsigned char*) a)[1] << 16 & 0xFF0000) | \
(((unsigned char*) a)[0] << 24 & 0xFF000000UL)))
#else
#define a_to_u_long(a) ((unsigned long) \
((((unsigned char*) a)[3] & 0xFF) | \
(((unsigned char*) a)[2] << 8 & 0xFF00) | \
(((unsigned char*) a)[1] << 16 & 0xFF0000) | \
(((unsigned char*) a)[0] << 24 & 0xFF000000)))
#endif
/* Peripheral Device Type */
#define SC_DASD 0x00
#define SC_SEQD 0x01
#define SC_PRTD 0x02
#define SC_PROCD 0x03
#define SC_OPTD 0x04
#define SC_ROMD 0x05
#define SC_SCAN 0x06
#define SC_OMEM 0x07
#define SC_JUKE 0x08
#define SC_COMM 0x09
#define SC_NOTPR 0x7F
#endif /* _SCGCMD_H */
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