/******************************************************************************
** Device driver for the PCI-SCSI NCR538XX controller family.
**
** Copyright (C) 1994 Wolfgang Stanglmeier
**
** 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 of the License, 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; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**-----------------------------------------------------------------------------
**
** This driver has been ported to Linux from the FreeBSD NCR53C8XX driver
** and is currently maintained by
**
** Gerard Roudier <groudier@club-internet.fr>
**
** Being given that this driver originates from the FreeBSD version, and
** in order to keep synergy on both, any suggested enhancements and corrections
** received on Linux are automatically a potential candidate for the FreeBSD
** version.
**
** The original driver has been written for 386bsd and FreeBSD by
** Wolfgang Stanglmeier <wolf@cologne.de>
** Stefan Esser <se@mi.Uni-Koeln.de>
**
** And has been ported to NetBSD by
** Charles M. Hannum <mycroft@gnu.ai.mit.edu>
**
*******************************************************************************
*/
#ifndef NCR53C8XX_H
#define NCR53C8XX_H
/*
** Name and revision of the driver
*/
#define SCSI_NCR_DRIVER_NAME "ncr53c8xx - revision 2.4a"
/*
** Check supported Linux versions
*/
#if !defined(LINUX_VERSION_CODE)
#include <linux/version.h>
#endif
#include <linux/config.h>
/*
** During make dep of linux-1.2.13, LINUX_VERSION_CODE is undefined
** Under linux-1.3.X, all seems to be OK.
** So, we have only to define it under 1.2.13
*/
#define LinuxVersionCode(v, p, s) (((v)<<16)+((p)<<8)+(s))
#if !defined(LINUX_VERSION_CODE)
#define LINUX_VERSION_CODE LinuxVersionCode(1,2,13)
#endif
/*
** Normal IO or memory mapped IO.
**
** Memory mapped IO only works with linux-1.3.X
** If your motherboard does not work with memory mapped IO,
** define SCSI_NCR_IOMAPPED for PATCHLEVEL 3 too.
*/
#if LINUX_VERSION_CODE < LinuxVersionCode(1,3,0)
# define SCSI_NCR_IOMAPPED
#endif
#if LINUX_VERSION_CODE >= LinuxVersionCode(1,3,0)
# define SCSI_NCR_PROC_INFO_SUPPORT
#endif
#if LINUX_VERSION_CODE >= LinuxVersionCode(1,3,72)
# define SCSI_NCR_SHARE_IRQ
#endif
/*
** If you want a driver as small as possible, donnot define the
** following options.
*/
#define SCSI_NCR_BOOT_COMMAND_LINE_SUPPORT
#define SCSI_NCR_DEBUG_INFO_SUPPORT
#define SCSI_NCR_PCI_FIX_UP_SUPPORT
#ifdef SCSI_NCR_PROC_INFO_SUPPORT
# define SCSI_NCR_PROFILE_SUPPORT
# define SCSI_NCR_USER_COMMAND_SUPPORT
# define SCSI_NCR_USER_INFO_SUPPORT
/* # define SCSI_NCR_DEBUG_ERROR_RECOVERY_SUPPORT */
#endif
/*==========================================================
**
** nvram settings - #define SCSI_NCR_NVRAM_SUPPORT to enable
**
**==========================================================
*/
#ifdef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
#define SCSI_NCR_NVRAM_SUPPORT
/* #define SCSI_NCR_DEBUG_NVRAM */
#endif
/* ---------------------------------------------------------------------
** Take into account kernel configured parameters.
** Most of these options can be overridden at startup by a command line.
** ---------------------------------------------------------------------
*/
/*
* For Ultra2 SCSI support option, use special features and allow 40Mhz
* synchronous data transfers.
*/
#define SCSI_NCR_SETUP_SPECIAL_FEATURES (1)
#define SCSI_NCR_SETUP_ULTRA_SCSI (2)
#define SCSI_NCR_MAX_SYNC (40)
/*
* Allow tags from 2 to 12, default 4
*/
#ifdef CONFIG_SCSI_NCR53C8XX_MAX_TAGS
#if CONFIG_SCSI_NCR53C8XX_MAX_TAGS < 2
#define SCSI_NCR_MAX_TAGS (2)
#elif CONFIG_SCSI_NCR53C8XX_MAX_TAGS > 12
#define SCSI_NCR_MAX_TAGS (12)
#else
#define SCSI_NCR_MAX_TAGS CONFIG_SCSI_NCR53C8XX_MAX_TAGS
#endif
#else
#define SCSI_NCR_MAX_TAGS (4)
#endif
/*
* Allow tagged command queuing support if configured with default number
* of tags set to max (see above).
*/
#ifdef CONFIG_SCSI_NCR53C8XX_TAGGED_QUEUE
#define SCSI_NCR_SETUP_DEFAULT_TAGS SCSI_NCR_MAX_TAGS
#else
#define SCSI_NCR_SETUP_DEFAULT_TAGS (0)
#endif
/*
* Use normal IO if configured. Forced for alpha.
*/
#if defined(CONFIG_SCSI_NCR53C8XX_IOMAPPED) || defined(__alpha__)
#define SCSI_NCR_IOMAPPED
#endif
/*
* Sync transfer frequency at startup.
* Allow from 5Mhz to 40Mhz default 10 Mhz.
*/
#ifndef CONFIG_SCSI_NCR53C8XX_SYNC
#define CONFIG_SCSI_NCR53C8XX_SYNC (5)
#elif CONFIG_SCSI_NCR53C8XX_SYNC > SCSI_NCR_MAX_SYNC
#define SCSI_NCR_SETUP_DEFAULT_SYNC SCSI_NCR_MAX_SYNC
#endif
#if CONFIG_SCSI_NCR53C8XX_SYNC == 0
#define SCSI_NCR_SETUP_DEFAULT_SYNC (255)
#elif CONFIG_SCSI_NCR53C8XX_SYNC <= 5
#define SCSI_NCR_SETUP_DEFAULT_SYNC (50)
#elif CONFIG_SCSI_NCR53C8XX_SYNC <= 20
#define SCSI_NCR_SETUP_DEFAULT_SYNC (250/(CONFIG_SCSI_NCR53C8XX_SYNC))
#elif CONFIG_SCSI_NCR53C8XX_SYNC <= 33
#define SCSI_NCR_SETUP_DEFAULT_SYNC (11)
#else
#define SCSI_NCR_SETUP_DEFAULT_SYNC (10)
#endif
/*
* Disallow disconnections at boot-up
*/
#ifdef CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
#define SCSI_NCR_SETUP_DISCONNECTION (0)
#else
#define SCSI_NCR_SETUP_DISCONNECTION (1)
#endif
/*
* Force synchronous negotiation for all targets
*/
#ifdef CONFIG_SCSI_NCR53C8XX_FORCE_SYNC_NEGO
#define SCSI_NCR_SETUP_FORCE_SYNC_NEGO (1)
#else
#define SCSI_NCR_SETUP_FORCE_SYNC_NEGO (0)
#endif
/*
* Disable master parity checking (flawed hardwares need that)
*/
#ifdef CONFIG_SCSI_NCR53C8XX_DISABLE_MPARITY_CHECK
#define SCSI_NCR_SETUP_MASTER_PARITY (0)
#else
#define SCSI_NCR_SETUP_MASTER_PARITY (1)
#endif
/*
* Disable scsi parity checking (flawed devices may need that)
*/
#ifdef CONFIG_SCSI_NCR53C8XX_DISABLE_PARITY_CHECK
#define SCSI_NCR_SETUP_SCSI_PARITY (0)
#else
#define SCSI_NCR_SETUP_SCSI_PARITY (1)
#endif
/*
* Vendor specific stuff
*/
#ifdef CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
#define SCSI_NCR_SETUP_LED_PIN (1)
#define SCSI_NCR_SETUP_DIFF_SUPPORT (3)
#else
#define SCSI_NCR_SETUP_LED_PIN (0)
#define SCSI_NCR_SETUP_DIFF_SUPPORT (0)
#endif
/*
* Settle time after reset at boot-up
*/
#define SCSI_NCR_SETUP_SETTLE_TIME (2)
/*
** Other parameters not configurable with "make config"
** Avoid to change these constants, unless you know what you are doing.
*/
#define SCSI_NCR_ALWAYS_SIMPLE_TAG
#define SCSI_NCR_MAX_SCATTER (127)
#define SCSI_NCR_MAX_TARGET (16)
#define SCSI_NCR_MAX_HOST (2)
#define SCSI_NCR_TIMEOUT_ALERT (3*HZ)
#define SCSI_NCR_CAN_QUEUE (7*SCSI_NCR_MAX_TAGS)
#define SCSI_NCR_CMD_PER_LUN (SCSI_NCR_MAX_TAGS)
#define SCSI_NCR_SG_TABLESIZE (SCSI_NCR_MAX_SCATTER)
#define SCSI_NCR_TIMER_INTERVAL ((HZ+5-1)/5)
#if 1 /* defined CONFIG_SCSI_MULTI_LUN */
#define SCSI_NCR_MAX_LUN (8)
#else
#define SCSI_NCR_MAX_LUN (1)
#endif
/*
** Define Scsi_Host_Template parameters
**
** Used by hosts.c and ncr53c8xx.c with module configuration.
*/
#if defined(HOSTS_C) || defined(MODULE)
#if LINUX_VERSION_CODE >= LinuxVersionCode(1,3,98)
#include <scsi/scsicam.h>
#else
#include <linux/scsicam.h>
#endif
int ncr53c8xx_abort(Scsi_Cmnd *);
int ncr53c8xx_detect(Scsi_Host_Template *tpnt);
int ncr53c8xx_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
#if LINUX_VERSION_CODE >= LinuxVersionCode(1,3,98)
int ncr53c8xx_reset(Scsi_Cmnd *, unsigned int);
#else
int ncr53c8xx_reset(Scsi_Cmnd *);
#endif
#ifdef MODULE
int ncr53c8xx_release(struct Scsi_Host *);
#else
#define ncr53c8xx_release NULL
#endif
#if LINUX_VERSION_CODE >= LinuxVersionCode(1,3,0)
#define NCR53C8XX {NULL,NULL,NULL,NULL,SCSI_NCR_DRIVER_NAME, ncr53c8xx_detect,\
ncr53c8xx_release, /* info */ NULL, /* command, deprecated */ NULL, \
ncr53c8xx_queue_command, ncr53c8xx_abort, ncr53c8xx_reset, \
NULL /* slave attach */, scsicam_bios_param, /* can queue */ SCSI_NCR_CAN_QUEUE,\
/* id */ 7, SCSI_NCR_SG_TABLESIZE /* SG */, /* cmd per lun */ SCSI_NCR_CMD_PER_LUN, \
/* present */ 0, /* unchecked isa dma */ 0, DISABLE_CLUSTERING}
#else
#define NCR53C8XX {NULL, NULL, SCSI_NCR_DRIVER_NAME, ncr53c8xx_detect,\
ncr53c8xx_release, /* info */ NULL, /* command, deprecated */ NULL, \
ncr53c8xx_queue_command, ncr53c8xx_abort, ncr53c8xx_reset, \
NULL /* slave attach */, scsicam_bios_param, /* can queue */ SCSI_NCR_CAN_QUEUE,\
/* id */ 7, SCSI_NCR_SG_TABLESIZE /* SG */, /* cmd per lun */ SCSI_NCR_CMD_PER_LUN, \
/* present */ 0, /* unchecked isa dma */ 0, DISABLE_CLUSTERING}
#endif /* LINUX_VERSION_CODE >= LinuxVersionCode(1,3,0) */
#endif /* defined(HOSTS_C) || defined(MODULE) */
#ifndef HOSTS_C
/*
** NCR53C8XX Device Ids
*/
#ifndef PCI_DEVICE_ID_NCR_53C810
#define PCI_DEVICE_ID_NCR_53C810 1
#endif
#ifndef PCI_DEVICE_ID_NCR_53C810AP
#define PCI_DEVICE_ID_NCR_53C810AP 5
#endif
#ifndef PCI_DEVICE_ID_NCR_53C815
#define PCI_DEVICE_ID_NCR_53C815 4
#endif
#ifndef PCI_DEVICE_ID_NCR_53C820
#define PCI_DEVICE_ID_NCR_53C820 2
#endif
#ifndef PCI_DEVICE_ID_NCR_53C825
#define PCI_DEVICE_ID_NCR_53C825 3
#endif
#ifndef PCI_DEVICE_ID_NCR_53C860
#define PCI_DEVICE_ID_NCR_53C860 6
#endif
#ifndef PCI_DEVICE_ID_NCR_53C875
#define PCI_DEVICE_ID_NCR_53C875 0xf
#endif
#ifndef PCI_DEVICE_ID_NCR_53C875J
#define PCI_DEVICE_ID_NCR_53C875J 0x8f
#endif
#ifndef PCI_DEVICE_ID_NCR_53C885
#define PCI_DEVICE_ID_NCR_53C885 0xd
#endif
#ifndef PCI_DEVICE_ID_NCR_53C895
#define PCI_DEVICE_ID_NCR_53C895 0xc
#endif
#ifndef PCI_DEVICE_ID_NCR_53C896
#define PCI_DEVICE_ID_NCR_53C896 0xb
#endif
/*
** NCR53C8XX devices features table.
*/
typedef struct {
unsigned short device_id;
unsigned short revision_id;
char *name;
unsigned char burst_max;
unsigned char offset_max;
unsigned char nr_divisor;
unsigned int features;
#define FE_LED0 (1<<0)
#define FE_WIDE (1<<1)
#define FE_ULTRA (1<<2)
#define FE_ULTRA2 (1<<3)
#define FE_DBLR (1<<4)
#define FE_QUAD (1<<5)
#define FE_ERL (1<<6)
#define FE_CLSE (1<<7)
#define FE_WRIE (1<<8)
#define FE_ERMP (1<<9)
#define FE_BOF (1<<10)
#define FE_DFS (1<<11)
#define FE_PFEN (1<<12)
#define FE_LDSTR (1<<13)
#define FE_RAM (1<<14)
#define FE_CLK80 (1<<15)
#define FE_CACHE_SET (FE_ERL|FE_CLSE|FE_WRIE|FE_ERMP)
#define FE_SCSI_SET (FE_WIDE|FE_ULTRA|FE_ULTRA2|FE_DBLR|FE_QUAD|F_CLK80)
#define FE_SPECIAL_SET (FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM)
} ncr_chip;
#define SCSI_NCR_CHIP_TABLE \
{ \
{PCI_DEVICE_ID_NCR_53C810, 0x0f, "810", 4, 8, 4, \
FE_ERL} \
, \
{PCI_DEVICE_ID_NCR_53C810, 0xff, "810a", 4, 8, 4, \
FE_CACHE_SET|FE_LDSTR|FE_PFEN|FE_BOF} \
, \
{PCI_DEVICE_ID_NCR_53C815, 0xff, "815", 4, 8, 4, \
FE_ERL|FE_BOF} \
, \
{PCI_DEVICE_ID_NCR_53C820, 0xff, "820", 4, 8, 4, \
FE_WIDE|FE_ERL} \
, \
{PCI_DEVICE_ID_NCR_53C825, 0x0f, "825", 4, 8, 4, \
FE_WIDE|FE_ERL|FE_BOF} \
, \
{PCI_DEVICE_ID_NCR_53C825, 0xff, "825a", 7, 8, 4, \
FE_WIDE|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM} \
, \
{PCI_DEVICE_ID_NCR_53C860, 0xff, "860", 4, 8, 5, \
FE_ULTRA|FE_CLK80|FE_CACHE_SET|FE_BOF|FE_LDSTR|FE_PFEN} \
, \
{PCI_DEVICE_ID_NCR_53C875, 0x01, "875", 7, 16, 5, \
FE_WIDE|FE_ULTRA|FE_CLK80|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM}\
, \
{PCI_DEVICE_ID_NCR_53C875, 0xff, "875", 7, 16, 5, \
FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM}\
, \
{PCI_DEVICE_ID_NCR_53C875J, 0xff, "875J", 7, 16, 5, \
FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM}\
, \
{PCI_DEVICE_ID_NCR_53C885, 0xff, "885", 7, 16, 5, \
FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM}\
, \
{PCI_DEVICE_ID_NCR_53C895, 0xff, "895", 7, 31, 7, \
FE_WIDE|FE_ULTRA2|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM}\
, \
{PCI_DEVICE_ID_NCR_53C896, 0xff, "896", 7, 31, 7, \
FE_WIDE|FE_ULTRA2|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM}\
}
/*
* List of supported NCR chip ids
*/
#define SCSI_NCR_CHIP_IDS \
{ \
PCI_DEVICE_ID_NCR_53C810, \
PCI_DEVICE_ID_NCR_53C815, \
PCI_DEVICE_ID_NCR_53C820, \
PCI_DEVICE_ID_NCR_53C825, \
PCI_DEVICE_ID_NCR_53C860, \
PCI_DEVICE_ID_NCR_53C875, \
PCI_DEVICE_ID_NCR_53C875J, \
PCI_DEVICE_ID_NCR_53C885, \
PCI_DEVICE_ID_NCR_53C895, \
PCI_DEVICE_ID_NCR_53C896 \
}
/*
** Initial setup.
** Can be overriden at startup by a command line.
*/
#define SCSI_NCR_DRIVER_SETUP \
{ \
SCSI_NCR_SETUP_MASTER_PARITY, \
SCSI_NCR_SETUP_SCSI_PARITY, \
SCSI_NCR_SETUP_DISCONNECTION, \
SCSI_NCR_SETUP_SPECIAL_FEATURES, \
SCSI_NCR_SETUP_ULTRA_SCSI, \
SCSI_NCR_SETUP_FORCE_SYNC_NEGO, \
0, \
0, \
1, \
1, \
SCSI_NCR_SETUP_DEFAULT_TAGS, \
SCSI_NCR_SETUP_DEFAULT_SYNC, \
0x00, \
7, \
SCSI_NCR_SETUP_LED_PIN, \
1, \
SCSI_NCR_SETUP_SETTLE_TIME, \
SCSI_NCR_SETUP_DIFF_SUPPORT, \
0 \
}
/*
** Boot fail safe setup.
** Override initial setup from boot command line:
** ncr53c8xx=safe:y
*/
#define SCSI_NCR_DRIVER_SAFE_SETUP \
{ \
0, \
1, \
0, \
0, \
0, \
0, \
0, \
0, \
1, \
2, \
0, \
255, \
0x00, \
255, \
0, \
0, \
10, \
1, \
1 \
}
/*
** Define the table of target capabilities by host and target
**
** If you have problems with a scsi device, note the host unit and the
** corresponding target number.
**
** Edit the corresponding entry of the table below and try successively:
** NQ7_Questionnable
** NQ7_IdeLike
**
** This bitmap is anded with the byte 7 of inquiry data on completion of
** INQUIRY command.
** The driver never see the zeroed bits and will ignore the corresponding
** capabilities of the target.
*/
#define INQ7_SftRe 1
#define INQ7_CmdQueue (1<<1) /* Tagged Command */
#define INQ7_Reserved (1<<2)
#define INQ7_Linked (1<<3)
#define INQ7_Sync (1<<4) /* Synchronous Negotiation */
#define INQ7_WBus16 (1<<5)
#define INQ7_WBus32 (1<<6)
#define INQ7_RelAdr (1<<7)
#define INQ7_IdeLike 0
#define INQ7_Scsi1Like INQ7_IdeLike
#define INQ7_Perfect 0xff
#define INQ7_Questionnable ~(INQ7_CmdQueue|INQ7_Sync)
#define INQ7_VeryQuestionnable \
~(INQ7_CmdQueue|INQ7_Sync|INQ7_WBus16|INQ7_WBus32)
#define INQ7_Default INQ7_Perfect
#define NCR53C8XX_TARGET_CAPABILITIES \
/* Host 0 */ \
{ \
{ \
/* Target 0 */ INQ7_Default, \
/* Target 1 */ INQ7_Default, \
/* Target 2 */ INQ7_Default, \
/* Target 3 */ INQ7_Default, \
/* Target 4 */ INQ7_Default, \
/* Target 5 */ INQ7_Default, \
/* Target 6 */ INQ7_Default, \
/* Target 7 */ INQ7_Default, \
/* Target 8 */ INQ7_Default, \
/* Target 9 */ INQ7_Default, \
/* Target 10 */ INQ7_Default, \
/* Target 11 */ INQ7_Default, \
/* Target 12 */ INQ7_Default, \
/* Target 13 */ INQ7_Default, \
/* Target 14 */ INQ7_Default, \
/* Target 15 */ INQ7_Default, \
} \
}, \
/* Host 1 */ \
{ \
{ \
/* Target 0 */ INQ7_Default, \
/* Target 1 */ INQ7_Default, \
/* Target 2 */ INQ7_Default, \
/* Target 3 */ INQ7_Default, \
/* Target 4 */ INQ7_Default, \
/* Target 5 */ INQ7_Default, \
/* Target 6 */ INQ7_Default, \
/* Target 7 */ INQ7_Default, \
/* Target 8 */ INQ7_Default, \
/* Target 9 */ INQ7_Default, \
/* Target 10 */ INQ7_Default, \
/* Target 11 */ INQ7_Default, \
/* Target 12 */ INQ7_Default, \
/* Target 13 */ INQ7_Default, \
/* Target 14 */ INQ7_Default, \
/* Target 15 */ INQ7_Default, \
} \
}
/*
** Replace the proc_dir_entry of the standard ncr driver.
*/
#if LINUX_VERSION_CODE >= LinuxVersionCode(1,3,0)
#if defined(CONFIG_SCSI_NCR53C7xx) || !defined(CONFIG_SCSI_NCR53C8XX)
#define PROC_SCSI_NCR53C8XX PROC_SCSI_NCR53C7xx
#endif
#endif
/**************** ORIGINAL CONTENT of ncrreg.h from FreeBSD ******************/
/*-----------------------------------------------------------------
**
** The ncr 53c810 register structure.
**
**-----------------------------------------------------------------
*/
struct ncr_reg {
/*00*/ u_char nc_scntl0; /* full arb., ena parity, par->ATN */
/*01*/ u_char nc_scntl1; /* no reset */
#define ISCON 0x10 /* connected to scsi */
#define CRST 0x08 /* force reset */
/*02*/ u_char nc_scntl2; /* no disconnect expected */
#define SDU 0x80 /* cmd: disconnect will raise error */
#define CHM 0x40 /* sta: chained mode */
#define WSS 0x08 /* sta: wide scsi send [W]*/
#define WSR 0x01 /* sta: wide scsi received [W]*/
/*03*/ u_char nc_scntl3; /* cnf system clock dependent */
#define EWS 0x08 /* cmd: enable wide scsi [W]*/
#define ULTRA 0x80 /* cmd: ULTRA enable */
/*04*/ u_char nc_scid; /* cnf host adapter scsi address */
#define RRE 0x40 /* r/w:e enable response to resel. */
#define SRE 0x20 /* r/w:e enable response to select */
/*05*/ u_char nc_sxfer; /* ### Sync speed and count */
/*06*/ u_char nc_sdid; /* ### Destination-ID */
/*07*/ u_char nc_gpreg; /* ??? IO-Pins */
/*08*/ u_char nc_sfbr; /* ### First byte in phase */
/*09*/ u_char nc_socl;
#define CREQ 0x80 /* r/w: SCSI-REQ */
#define CACK 0x40 /* r/w: SCSI-ACK */
#define CBSY 0x20 /* r/w: SCSI-BSY */
#define CSEL 0x10 /* r/w: SCSI-SEL */
#define CATN 0x08 /* r/w: SCSI-ATN */
#define CMSG 0x04 /* r/w: SCSI-MSG */
#define CC_D 0x02 /* r/w: SCSI-C_D */
#define CI_O 0x01 /* r/w: SCSI-I_O */
/*0a*/ u_char nc_ssid;
/*0b*/ u_char nc_sbcl;
/*0c*/ u_char nc_dstat;
#define DFE 0x80 /* sta: dma fifo empty */
#define MDPE 0x40 /* int: master data parity error */
#define BF 0x20 /* int: script: bus fault */
#define ABRT 0x10 /* int: script: command aborted */
#define SSI 0x08 /* int: script: single step */
#define SIR 0x04 /* int: script: interrupt instruct. */
#define IID 0x01 /* int: script: illegal instruct. */
/*0d*/ u_char nc_sstat0;
#define ILF 0x80 /* sta: data in SIDL register lsb */
#define ORF 0x40 /* sta: data in SODR register lsb */
#define OLF 0x20 /* sta: data in SODL register lsb */
#define AIP 0x10 /* sta: arbitration in progress */
#define LOA 0x08 /* sta: arbitration lost */
#define WOA 0x04 /* sta: arbitration won */
#define IRST 0x02 /* sta: scsi reset signal */
#define SDP 0x01 /* sta: scsi parity signal */
/*0e*/ u_char nc_sstat1;
#define FF3210 0xf0 /* sta: bytes in the scsi fifo */
/*0f*/ u_char nc_sstat2;
#define ILF1 0x80 /* sta: data in SIDL register msb[W]*/
#define ORF1 0x40 /* sta: data in SODR register msb[W]*/
#define OLF1 0x20 /* sta: data in SODL register msb[W]*/
#define DM 0x04 /* sta: DIFFSENS mismatch (895/6 only) */
#define LDSC 0x02 /* sta: disconnect & reconnect */
/*10*/ u_int32 nc_dsa; /* --> Base page */
/*14*/ u_char nc_istat; /* --> Main Command and status */
#define CABRT 0x80 /* cmd: abort current operation */
#define SRST 0x40 /* mod: reset chip */
#define SIGP 0x20 /* r/w: message from host to ncr */
#define SEM 0x10 /* r/w: message between host + ncr */
#define CON 0x08 /* sta: connected to scsi */
#define INTF 0x04 /* sta: int on the fly (reset by wr)*/
#define SIP 0x02 /* sta: scsi-interrupt */
#define DIP 0x01 /* sta: host/script interrupt */
/*15*/ u_char nc_15_;
/*16*/ u_char nc_16_;
/*17*/ u_char nc_17_;
/*18*/ u_char nc_ctest0;
/*19*/ u_char nc_ctest1;
/*1a*/ u_char nc_ctest2;
#define CSIGP 0x40
/*1b*/ u_char nc_ctest3;
#define FLF 0x08 /* cmd: flush dma fifo */
#define CLF 0x04 /* cmd: clear dma fifo */
#define FM 0x02 /* mod: fetch pin mode */
#define WRIE 0x01 /* mod: write and invalidate enable */
/*1c*/ u_int32 nc_temp; /* ### Temporary stack */
/*20*/ u_char nc_dfifo;
/*21*/ u_char nc_ctest4;
#define BDIS 0x80 /* mod: burst disable */
#define MPEE 0x08 /* mod: master parity error enable */
/*22*/ u_char nc_ctest5;
#define DFS 0x20 /* mod: dma fifo size */
/*23*/ u_char nc_ctest6;
/*24*/ u_int32 nc_dbc; /* ### Byte count and command */
/*28*/ u_int32 nc_dnad; /* ### Next command register */
/*2c*/ u_int32 nc_dsp; /* --> Script Pointer */
/*30*/ u_int32 nc_dsps; /* --> Script pointer save/opcode#2 */
/*34*/ u_int32 nc_scratcha; /* ??? Temporary register a */
/*38*/ u_char nc_dmode;
#define BL_2 0x80 /* mod: burst length shift value +2 */
#define BL_1 0x40 /* mod: burst length shift value +1 */
#define ERL 0x08 /* mod: enable read line */
#define ERMP 0x04 /* mod: enable read multiple */
#define BOF 0x02 /* mod: burst op code fetch */
/*39*/ u_char nc_dien;
/*3a*/ u_char nc_dwt;
/*3b*/ u_char nc_dcntl; /* --> Script execution control */
#define CLSE 0x80 /* mod: cache line size enable */
#define PFF 0x40 /* cmd: pre-fetch flush */
#define PFEN 0x20 /* mod: pre-fetch enable */
#define SSM 0x10 /* mod: single step mode */
#define IRQM 0x08 /* mod: irq mode (1 = totem pole !) */
#define STD 0x04 /* cmd: start dma mode */
#define IRQD 0x02 /* mod: irq disable */
#define NOCOM 0x01 /* cmd: protect sfbr while reselect */
/*3c*/ u_int32 nc_adder;
/*40*/ u_short nc_sien; /* -->: interrupt enable */
/*42*/ u_short nc_sist; /* <--: interrupt status */
#define SBMC 0x1000/* sta: SCSI Bus Mode Change (895/6 only) */
#define STO 0x0400/* sta: timeout (select) */
#define GEN 0x0200/* sta: timeout (general) */
#define HTH 0x0100/* sta: timeout (handshake) */
#define MA 0x80 /* sta: phase mismatch */
#define CMP 0x40 /* sta: arbitration complete */
#define SEL 0x20 /* sta: selected by another device */
#define RSL 0x10 /* sta: reselected by another device*/
#define SGE 0x08 /* sta: gross error (over/underflow)*/
#define UDC 0x04 /* sta: unexpected disconnect */
#define RST 0x02 /* sta: scsi bus reset detected */
#define PAR 0x01 /* sta: scsi parity error */
/*44*/ u_char nc_slpar;
/*45*/ u_char nc_swide;
/*46*/ u_char nc_macntl;
/*47*/ u_char nc_gpcntl;
/*48*/ u_char nc_stime0; /* cmd: timeout for select&handshake*/
/*49*/ u_char nc_stime1; /* cmd: timeout user defined */
/*4a*/ u_short nc_respid; /* sta: Reselect-IDs */
/*4c*/ u_char nc_stest0;
/*4d*/ u_char nc_stest1;
#define DBLEN 0x08 /* clock doubler running */
#define DBLSEL 0x04 /* clock doubler selected */
/*4e*/ u_char nc_stest2;
#define ROF 0x40 /* reset scsi offset (after gross error!) */
#define EXT 0x02 /* extended filtering */
/*4f*/ u_char nc_stest3;
#define TE 0x80 /* c: tolerAnt enable */
#define HSC 0x20 /* c: Halt SCSI Clock */
#define CSF 0x02 /* c: clear scsi fifo */
/*50*/ u_short nc_sidl; /* Lowlevel: latched from scsi data */
/*52*/ u_char nc_stest4;
#define SMODE 0xc0 /* SCSI bus mode (895/6 only) */
#define SMODE_HVD 0x40 /* High Voltage Differential */
#define SMODE_SE 0x80 /* Single Ended */
#define SMODE_LVD 0xc0 /* Low Voltage Differential */
#define LCKFRQ 0x20 /* Frequency Lock (895/6 only) */
/*53*/ u_char nc_53_;
/*54*/ u_short nc_sodl; /* Lowlevel: data out to scsi data */
/*56*/ u_short nc_56_;
/*58*/ u_short nc_sbdl; /* Lowlevel: data from scsi data */
/*5a*/ u_short nc_5a_;
/*5c*/ u_char nc_scr0; /* Working register B */
/*5d*/ u_char nc_scr1; /* */
/*5e*/ u_char nc_scr2; /* */
/*5f*/ u_char nc_scr3; /* */
/*60*/
};
/*-----------------------------------------------------------
**
** Utility macros for the script.
**
**-----------------------------------------------------------
*/
#define REGJ(p,r) (offsetof(struct ncr_reg, p ## r))
#define REG(r) REGJ (nc_, r)
#ifndef TARGET_MODE
#define TARGET_MODE 0
#endif
typedef u_int32 ncrcmd;
/*-----------------------------------------------------------
**
** SCSI phases
**
**-----------------------------------------------------------
*/
#define SCR_DATA_OUT 0x00000000
#define SCR_DATA_IN 0x01000000
#define SCR_COMMAND 0x02000000
#define SCR_STATUS 0x03000000
#define SCR_ILG_OUT 0x04000000
#define SCR_ILG_IN 0x05000000
#define SCR_MSG_OUT 0x06000000
#define SCR_MSG_IN 0x07000000
/*-----------------------------------------------------------
**
** Data transfer via SCSI.
**
**-----------------------------------------------------------
**
** MOVE_ABS (LEN)
** <<start address>>
**
** MOVE_IND (LEN)
** <<dnad_offset>>
**
** MOVE_TBL
** <<dnad_offset>>
**
**-----------------------------------------------------------
*/
#define SCR_MOVE_ABS(l) ((0x08000000 ^ (TARGET_MODE << 1ul)) | (l))
#define SCR_MOVE_IND(l) ((0x28000000 ^ (TARGET_MODE << 1ul)) | (l))
#define SCR_MOVE_TBL (0x18000000 ^ (TARGET_MODE << 1ul))
struct scr_tblmove {
u_int32 size;
u_int32 addr;
};
/*-----------------------------------------------------------
**
** Selection
**
**-----------------------------------------------------------
**
** SEL_ABS | SCR_ID (0..7) [ | REL_JMP]
** <<alternate_address>>
**
** SEL_TBL | << dnad_offset>> [ | REL_JMP]
** <<alternate_address>>
**
**-----------------------------------------------------------
*/
#define SCR_SEL_ABS 0x40000000
#define SCR_SEL_ABS_ATN 0x41000000
#define SCR_SEL_TBL 0x42000000
#define SCR_SEL_TBL_ATN 0x43000000
struct scr_tblsel {
u_char sel_0;
u_char sel_sxfer;
u_char sel_id;
u_char sel_scntl3;
};
#define SCR_JMP_REL 0x04000000
#define SCR_ID(id) (((u_int32)(id)) << 16)
/*-----------------------------------------------------------
**
** Waiting for Disconnect or Reselect
**
**-----------------------------------------------------------
**
** WAIT_DISC
** dummy: <<alternate_address>>
**
** WAIT_RESEL
** <<alternate_address>>
**
**-----------------------------------------------------------
*/
#define SCR_WAIT_DISC 0x48000000
#define SCR_WAIT_RESEL 0x50000000
/*-----------------------------------------------------------
**
** Bit Set / Reset
**
**-----------------------------------------------------------
**
** SET (flags {|.. })
**
** CLR (flags {|.. })
**
**-----------------------------------------------------------
*/
#define SCR_SET(f) (0x58000000 | (f))
#define SCR_CLR(f) (0x60000000 | (f))
#define SCR_CARRY 0x00000400
#define SCR_TRG 0x00000200
#define SCR_ACK 0x00000040
#define SCR_ATN 0x00000008
/*-----------------------------------------------------------
**
** Memory to memory move
**
**-----------------------------------------------------------
**
** COPY (bytecount)
** << source_address >>
** << destination_address >>
**
** SCR_COPY sets the NO FLUSH option by default.
** SCR_COPY_F does not set this option.
**
** For chips which do not support this option,
** ncr_copy_and_bind() will remove this bit.
**-----------------------------------------------------------
*/
#define SCR_NO_FLUSH 0x01000000
#define SCR_COPY(n) (0xc0000000 | SCR_NO_FLUSH | (n))
#define SCR_COPY_F(n) (0xc0000000 | (n))
/*-----------------------------------------------------------
**
** Register move and binary operations
**
**-----------------------------------------------------------
**
** SFBR_REG (reg, op, data) reg = SFBR op data
** << 0 >>
**
** REG_SFBR (reg, op, data) SFBR = reg op data
** << 0 >>
**
** REG_REG (reg, op, data) reg = reg op data
** << 0 >>
**
**-----------------------------------------------------------
*/
#define SCR_REG_OFS(ofs) ((ofs) << 16ul)
#define SCR_SFBR_REG(reg,op,data) \
(0x68000000 | (SCR_REG_OFS(REG(reg))) | (op) | ((data)<<8ul))
#define SCR_REG_SFBR(reg,op,data) \
(0x70000000 | (SCR_REG_OFS(REG(reg))) | (op) | ((data)<<8ul))
#define SCR_REG_REG(reg,op,data) \
(0x78000000 | (SCR_REG_OFS(REG(reg))) | (op) | ((data)<<8ul))
#define SCR_LOAD 0x00000000
#define SCR_SHL 0x01000000
#define SCR_OR 0x02000000
#define SCR_XOR 0x03000000
#define SCR_AND 0x04000000
#define SCR_SHR 0x05000000
#define SCR_ADD 0x06000000
#define SCR_ADDC 0x07000000
/*-----------------------------------------------------------
**
** FROM_REG (reg) reg = SFBR
** << 0 >>
**
** TO_REG (reg) SFBR = reg
** << 0 >>
**
** LOAD_REG (reg, data) reg = <data>
** << 0 >>
**
** LOAD_SFBR(data) SFBR = <data>
** << 0 >>
**
**-----------------------------------------------------------
*/
#define SCR_FROM_REG(reg) \
SCR_REG_SFBR(reg,SCR_OR,0)
#define SCR_TO_REG(reg) \
SCR_SFBR_REG(reg,SCR_OR,0)
#define SCR_LOAD_REG(reg,data) \
SCR_REG_REG(reg,SCR_LOAD,data)
#define SCR_LOAD_SFBR(data) \
(SCR_REG_SFBR (gpreg, SCR_LOAD, data))
/*-----------------------------------------------------------
**
** Waiting for Disconnect or Reselect
**
**-----------------------------------------------------------
**
** JUMP [ | IFTRUE/IFFALSE ( ... ) ]
** <<address>>
**
** JUMPR [ | IFTRUE/IFFALSE ( ... ) ]
** <<distance>>
**
** CALL [ | IFTRUE/IFFALSE ( ... ) ]
** <<address>>
**
** CALLR [ | IFTRUE/IFFALSE ( ... ) ]
** <<distance>>
**
** RETURN [ | IFTRUE/IFFALSE ( ... ) ]
** <<dummy>>
**
** INT [ | IFTRUE/IFFALSE ( ... ) ]
** <<ident>>
**
** INT_FLY [ | IFTRUE/IFFALSE ( ... ) ]
** <<ident>>
**
** Conditions:
** WHEN (phase)
** IF (phase)
** CARRY
** DATA (data, mask)
**
**-----------------------------------------------------------
*/
#define SCR_NO_OP 0x80000000
#define SCR_JUMP 0x80080000
#define SCR_JUMPR 0x80880000
#define SCR_CALL 0x88080000
#define SCR_CALLR 0x88880000
#define SCR_RETURN 0x90080000
#define SCR_INT 0x98080000
#define SCR_INT_FLY 0x98180000
#define IFFALSE(arg) (0x00080000 | (arg))
#define IFTRUE(arg) (0x00000000 | (arg))
#define WHEN(phase) (0x00030000 | (phase))
#define IF(phase) (0x00020000 | (phase))
#define DATA(D) (0x00040000 | ((D) & 0xff))
#define MASK(D,M) (0x00040000 | (((M ^ 0xff) & 0xff) << 8ul)|((D) & 0xff))
#define CARRYSET (0x00200000)
/*-----------------------------------------------------------
**
** SCSI constants.
**
**-----------------------------------------------------------
*/
/*
** Messages
*/
#define M_COMPLETE (0x00)
#define M_EXTENDED (0x01)
#define M_SAVE_DP (0x02)
#define M_RESTORE_DP (0x03)
#define M_DISCONNECT (0x04)
#define M_ID_ERROR (0x05)
#define M_ABORT (0x06)
#define M_REJECT (0x07)
#define M_NOOP (0x08)
#define M_PARITY (0x09)
#define M_LCOMPLETE (0x0a)
#define M_FCOMPLETE (0x0b)
#define M_RESET (0x0c)
#define M_ABORT_TAG (0x0d)
#define M_CLEAR_QUEUE (0x0e)
#define M_INIT_REC (0x0f)
#define M_REL_REC (0x10)
#define M_TERMINATE (0x11)
#define M_SIMPLE_TAG (0x20)
#define M_HEAD_TAG (0x21)
#define M_ORDERED_TAG (0x22)
#define M_IGN_RESIDUE (0x23)
#define M_IDENTIFY (0x80)
#define M_X_MODIFY_DP (0x00)
#define M_X_SYNC_REQ (0x01)
#define M_X_WIDE_REQ (0x03)
/*
** Status
*/
#define S_GOOD (0x00)
#define S_CHECK_COND (0x02)
#define S_COND_MET (0x04)
#define S_BUSY (0x08)
#define S_INT (0x10)
#define S_INT_COND_MET (0x14)
#define S_CONFLICT (0x18)
#define S_TERMINATED (0x20)
#define S_QUEUE_FULL (0x28)
#define S_ILLEGAL (0xff)
#define S_SENSE (0x80)
/*
* End of ncrreg from FreeBSD
*/
#endif /* !defined HOSTS_C */
#endif /* defined NCR53C8XX_H */
