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linux/drivers/scsi/initio.h
Alan Cox 72d39fea90 [SCSI] initio: Convert into a real Linux driver and update to modern style 
This is a mix of a grand clean up I did and a reworking of the hotplug
support by Christoph. In testing it works as well as the previous code
did (that is -quite badly-) but we can now read it and as it settles in
actually debug the long standing problems it shares with the old driver.

Signed-off-by: Alan Cox <alan@redhat.com>

From Christoph:

removal of the BSD license is also fine with me, but should really
get a mention in the changelog aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-22 11:08:56 -05:00

668 lines
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/**************************************************************************
* Initio 9100 device driver for Linux.
*
* Copyright (c) 1994-1998 Initio Corporation
* All rights reserved.
*
* Cleanups (c) Copyright 2007 Red Hat <alan@redhat.com>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
**************************************************************************/
#include <linux/types.h>
#define TOTAL_SG_ENTRY 32
#define MAX_SUPPORTED_ADAPTERS 8
#define MAX_OFFSET 15
#define MAX_TARGETS 16
typedef struct {
unsigned short base;
unsigned short vec;
} i91u_config;
/***************************************/
/* Tulip Configuration Register Set */
/***************************************/
#define TUL_PVID 0x00 /* Vendor ID */
#define TUL_PDID 0x02 /* Device ID */
#define TUL_PCMD 0x04 /* Command */
#define TUL_PSTUS 0x06 /* Status */
#define TUL_PRID 0x08 /* Revision number */
#define TUL_PPI 0x09 /* Programming interface */
#define TUL_PSC 0x0A /* Sub Class */
#define TUL_PBC 0x0B /* Base Class */
#define TUL_PCLS 0x0C /* Cache line size */
#define TUL_PLTR 0x0D /* Latency timer */
#define TUL_PHDT 0x0E /* Header type */
#define TUL_PBIST 0x0F /* BIST */
#define TUL_PBAD 0x10 /* Base address */
#define TUL_PBAD1 0x14 /* Base address */
#define TUL_PBAD2 0x18 /* Base address */
#define TUL_PBAD3 0x1C /* Base address */
#define TUL_PBAD4 0x20 /* Base address */
#define TUL_PBAD5 0x24 /* Base address */
#define TUL_PRSVD 0x28 /* Reserved */
#define TUL_PRSVD1 0x2C /* Reserved */
#define TUL_PRAD 0x30 /* Expansion ROM base address */
#define TUL_PRSVD2 0x34 /* Reserved */
#define TUL_PRSVD3 0x38 /* Reserved */
#define TUL_PINTL 0x3C /* Interrupt line */
#define TUL_PINTP 0x3D /* Interrupt pin */
#define TUL_PIGNT 0x3E /* MIN_GNT */
#define TUL_PMGNT 0x3F /* MAX_GNT */
/************************/
/* Jasmin Register Set */
/************************/
#define TUL_HACFG0 0x40 /* H/A Configuration Register 0 */
#define TUL_HACFG1 0x41 /* H/A Configuration Register 1 */
#define TUL_HACFG2 0x42 /* H/A Configuration Register 2 */
#define TUL_SDCFG0 0x44 /* SCSI Device Configuration 0 */
#define TUL_SDCFG1 0x45 /* SCSI Device Configuration 1 */
#define TUL_SDCFG2 0x46 /* SCSI Device Configuration 2 */
#define TUL_SDCFG3 0x47 /* SCSI Device Configuration 3 */
#define TUL_GINTS 0x50 /* Global Interrupt Status Register */
#define TUL_GIMSK 0x52 /* Global Interrupt MASK Register */
#define TUL_GCTRL 0x54 /* Global Control Register */
#define TUL_GCTRL_EEPROM_BIT 0x04
#define TUL_GCTRL1 0x55 /* Global Control Register */
#define TUL_DMACFG 0x5B /* DMA configuration */
#define TUL_NVRAM 0x5D /* Non-volatile RAM port */
#define TUL_SCnt0 0x80 /* 00 R/W Transfer Counter Low */
#define TUL_SCnt1 0x81 /* 01 R/W Transfer Counter Mid */
#define TUL_SCnt2 0x82 /* 02 R/W Transfer Count High */
#define TUL_SFifoCnt 0x83 /* 03 R FIFO counter */
#define TUL_SIntEnable 0x84 /* 03 W Interrupt enble */
#define TUL_SInt 0x84 /* 04 R Interrupt Register */
#define TUL_SCtrl0 0x85 /* 05 W Control 0 */
#define TUL_SStatus0 0x85 /* 05 R Status 0 */
#define TUL_SCtrl1 0x86 /* 06 W Control 1 */
#define TUL_SStatus1 0x86 /* 06 R Status 1 */
#define TUL_SConfig 0x87 /* 07 W Configuration */
#define TUL_SStatus2 0x87 /* 07 R Status 2 */
#define TUL_SPeriod 0x88 /* 08 W Sync. Transfer Period & Offset */
#define TUL_SOffset 0x88 /* 08 R Offset */
#define TUL_SScsiId 0x89 /* 09 W SCSI ID */
#define TUL_SBusId 0x89 /* 09 R SCSI BUS ID */
#define TUL_STimeOut 0x8A /* 0A W Sel/Resel Time Out Register */
#define TUL_SIdent 0x8A /* 0A R Identify Message Register */
#define TUL_SAvail 0x8A /* 0A R Availiable Counter Register */
#define TUL_SData 0x8B /* 0B R/W SCSI data in/out */
#define TUL_SFifo 0x8C /* 0C R/W FIFO */
#define TUL_SSignal 0x90 /* 10 R/W SCSI signal in/out */
#define TUL_SCmd 0x91 /* 11 R/W Command */
#define TUL_STest0 0x92 /* 12 R/W Test0 */
#define TUL_STest1 0x93 /* 13 R/W Test1 */
#define TUL_SCFG1 0x94 /* 14 R/W Configuration */
#define TUL_XAddH 0xC0 /*DMA Transfer Physical Address */
#define TUL_XAddW 0xC8 /*DMA Current Transfer Physical Address */
#define TUL_XCntH 0xD0 /*DMA Transfer Counter */
#define TUL_XCntW 0xD4 /*DMA Current Transfer Counter */
#define TUL_XCmd 0xD8 /*DMA Command Register */
#define TUL_Int 0xDC /*Interrupt Register */
#define TUL_XStatus 0xDD /*DMA status Register */
#define TUL_Mask 0xE0 /*Interrupt Mask Register */
#define TUL_XCtrl 0xE4 /*DMA Control Register */
#define TUL_XCtrl1 0xE5 /*DMA Control Register 1 */
#define TUL_XFifo 0xE8 /*DMA FIFO */
#define TUL_WCtrl 0xF7 /*Bus master wait state control */
#define TUL_DCtrl 0xFB /*DMA delay control */
/*----------------------------------------------------------------------*/
/* bit definition for Command register of Configuration Space Header */
/*----------------------------------------------------------------------*/
#define BUSMS 0x04 /* BUS MASTER Enable */
#define IOSPA 0x01 /* IO Space Enable */
/*----------------------------------------------------------------------*/
/* Command Codes of Tulip SCSI Command register */
/*----------------------------------------------------------------------*/
#define TSC_EN_RESEL 0x80 /* Enable Reselection */
#define TSC_CMD_COMP 0x84 /* Command Complete Sequence */
#define TSC_SEL 0x01 /* Select Without ATN Sequence */
#define TSC_SEL_ATN 0x11 /* Select With ATN Sequence */
#define TSC_SEL_ATN_DMA 0x51 /* Select With ATN Sequence with DMA */
#define TSC_SEL_ATN3 0x31 /* Select With ATN3 Sequence */
#define TSC_SEL_ATNSTOP 0x12 /* Select With ATN and Stop Sequence */
#define TSC_SELATNSTOP 0x1E /* Select With ATN and Stop Sequence */
#define TSC_SEL_ATN_DIRECT_IN 0x95 /* Select With ATN Sequence */
#define TSC_SEL_ATN_DIRECT_OUT 0x15 /* Select With ATN Sequence */
#define TSC_SEL_ATN3_DIRECT_IN 0xB5 /* Select With ATN3 Sequence */
#define TSC_SEL_ATN3_DIRECT_OUT 0x35 /* Select With ATN3 Sequence */
#define TSC_XF_DMA_OUT_DIRECT 0x06 /* DMA Xfer Information out */
#define TSC_XF_DMA_IN_DIRECT 0x86 /* DMA Xfer Information in */
#define TSC_XF_DMA_OUT 0x43 /* DMA Xfer Information out */
#define TSC_XF_DMA_IN 0xC3 /* DMA Xfer Information in */
#define TSC_XF_FIFO_OUT 0x03 /* FIFO Xfer Information out */
#define TSC_XF_FIFO_IN 0x83 /* FIFO Xfer Information in */
#define TSC_MSG_ACCEPT 0x0F /* Message Accept */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI Control 0 Register */
/*----------------------------------------------------------------------*/
#define TSC_RST_SEQ 0x20 /* Reset sequence counter */
#define TSC_FLUSH_FIFO 0x10 /* Flush FIFO */
#define TSC_ABT_CMD 0x04 /* Abort command (sequence) */
#define TSC_RST_CHIP 0x02 /* Reset SCSI Chip */
#define TSC_RST_BUS 0x01 /* Reset SCSI Bus */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI Control 1 Register */
/*----------------------------------------------------------------------*/
#define TSC_EN_SCAM 0x80 /* Enable SCAM */
#define TSC_TIMER 0x40 /* Select timeout unit */
#define TSC_EN_SCSI2 0x20 /* SCSI-2 mode */
#define TSC_PWDN 0x10 /* Power down mode */
#define TSC_WIDE_CPU 0x08 /* Wide CPU */
#define TSC_HW_RESELECT 0x04 /* Enable HW reselect */
#define TSC_EN_BUS_OUT 0x02 /* Enable SCSI data bus out latch */
#define TSC_EN_BUS_IN 0x01 /* Enable SCSI data bus in latch */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI Configuration Register */
/*----------------------------------------------------------------------*/
#define TSC_EN_LATCH 0x80 /* Enable phase latch */
#define TSC_INITIATOR 0x40 /* Initiator mode */
#define TSC_EN_SCSI_PAR 0x20 /* Enable SCSI parity */
#define TSC_DMA_8BIT 0x10 /* Alternate dma 8-bits mode */
#define TSC_DMA_16BIT 0x08 /* Alternate dma 16-bits mode */
#define TSC_EN_WDACK 0x04 /* Enable DACK while wide SCSI xfer */
#define TSC_ALT_PERIOD 0x02 /* Alternate sync period mode */
#define TSC_DIS_SCSIRST 0x01 /* Disable SCSI bus reset us */
#define TSC_INITDEFAULT (TSC_INITIATOR | TSC_EN_LATCH | TSC_ALT_PERIOD | TSC_DIS_SCSIRST)
#define TSC_WIDE_SCSI 0x80 /* Enable Wide SCSI */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI signal Register */
/*----------------------------------------------------------------------*/
#define TSC_RST_ACK 0x00 /* Release ACK signal */
#define TSC_RST_ATN 0x00 /* Release ATN signal */
#define TSC_RST_BSY 0x00 /* Release BSY signal */
#define TSC_SET_ACK 0x40 /* ACK signal */
#define TSC_SET_ATN 0x08 /* ATN signal */
#define TSC_REQI 0x80 /* REQ signal */
#define TSC_ACKI 0x40 /* ACK signal */
#define TSC_BSYI 0x20 /* BSY signal */
#define TSC_SELI 0x10 /* SEL signal */
#define TSC_ATNI 0x08 /* ATN signal */
#define TSC_MSGI 0x04 /* MSG signal */
#define TSC_CDI 0x02 /* C/D signal */
#define TSC_IOI 0x01 /* I/O signal */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI Status 0 Register */
/*----------------------------------------------------------------------*/
#define TSS_INT_PENDING 0x80 /* Interrupt pending */
#define TSS_SEQ_ACTIVE 0x40 /* Sequencer active */
#define TSS_XFER_CNT 0x20 /* Transfer counter zero */
#define TSS_FIFO_EMPTY 0x10 /* FIFO empty */
#define TSS_PAR_ERROR 0x08 /* SCSI parity error */
#define TSS_PH_MASK 0x07 /* SCSI phase mask */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI Status 1 Register */
/*----------------------------------------------------------------------*/
#define TSS_STATUS_RCV 0x08 /* Status received */
#define TSS_MSG_SEND 0x40 /* Message sent */
#define TSS_CMD_PH_CMP 0x20 /* command phase done */
#define TSS_DATA_PH_CMP 0x10 /* Data phase done */
#define TSS_STATUS_SEND 0x08 /* Status sent */
#define TSS_XFER_CMP 0x04 /* Transfer completed */
#define TSS_SEL_CMP 0x02 /* Selection completed */
#define TSS_ARB_CMP 0x01 /* Arbitration completed */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI Status 2 Register */
/*----------------------------------------------------------------------*/
#define TSS_CMD_ABTED 0x80 /* Command aborted */
#define TSS_OFFSET_0 0x40 /* Offset counter zero */
#define TSS_FIFO_FULL 0x20 /* FIFO full */
#define TSS_TIMEOUT_0 0x10 /* Timeout counter zero */
#define TSS_BUSY_RLS 0x08 /* Busy release */
#define TSS_PH_MISMATCH 0x04 /* Phase mismatch */
#define TSS_SCSI_BUS_EN 0x02 /* SCSI data bus enable */
#define TSS_SCSIRST 0x01 /* SCSI bus reset in progress */
/*----------------------------------------------------------------------*/
/* bit definition for Tulip SCSI Interrupt Register */
/*----------------------------------------------------------------------*/
#define TSS_RESEL_INT 0x80 /* Reselected interrupt */
#define TSS_SEL_TIMEOUT 0x40 /* Selected/reselected timeout */
#define TSS_BUS_SERV 0x20
#define TSS_SCSIRST_INT 0x10 /* SCSI bus reset detected */
#define TSS_DISC_INT 0x08 /* Disconnected interrupt */
#define TSS_SEL_INT 0x04 /* Select interrupt */
#define TSS_SCAM_SEL 0x02 /* SCAM selected */
#define TSS_FUNC_COMP 0x01
/*----------------------------------------------------------------------*/
/* SCSI Phase Codes. */
/*----------------------------------------------------------------------*/
#define DATA_OUT 0
#define DATA_IN 1 /* 4 */
#define CMD_OUT 2
#define STATUS_IN 3 /* 6 */
#define MSG_OUT 6 /* 3 */
#define MSG_IN 7
/*----------------------------------------------------------------------*/
/* Command Codes of Tulip xfer Command register */
/*----------------------------------------------------------------------*/
#define TAX_X_FORC 0x02
#define TAX_X_ABT 0x04
#define TAX_X_CLR_FIFO 0x08
#define TAX_X_IN 0x21
#define TAX_X_OUT 0x01
#define TAX_SG_IN 0xA1
#define TAX_SG_OUT 0x81
/*----------------------------------------------------------------------*/
/* Tulip Interrupt Register */
/*----------------------------------------------------------------------*/
#define XCMP 0x01
#define FCMP 0x02
#define XABT 0x04
#define XERR 0x08
#define SCMP 0x10
#define IPEND 0x80
/*----------------------------------------------------------------------*/
/* Tulip DMA Status Register */
/*----------------------------------------------------------------------*/
#define XPEND 0x01 /* Transfer pending */
#define FEMPTY 0x02 /* FIFO empty */
/*----------------------------------------------------------------------*/
/* bit definition for TUL_GCTRL */
/*----------------------------------------------------------------------*/
#define EXTSG 0x80
#define EXTAD 0x60
#define SEG4K 0x08
#define EEPRG 0x04
#define MRMUL 0x02
/*----------------------------------------------------------------------*/
/* bit definition for TUL_NVRAM */
/*----------------------------------------------------------------------*/
#define SE2CS 0x08
#define SE2CLK 0x04
#define SE2DO 0x02
#define SE2DI 0x01
/************************************************************************/
/* Scatter-Gather Element Structure */
/************************************************************************/
struct sg_entry {
u32 data; /* Data Pointer */
u32 len; /* Data Length */
};
/***********************************************************************
SCSI Control Block
************************************************************************/
struct scsi_ctrl_blk {
struct scsi_ctrl_blk *next;
u8 status; /*4 */
u8 next_state; /*5 */
u8 mode; /*6 */
u8 msgin; /*7 SCB_Res0 */
u16 sgidx; /*8 */
u16 sgmax; /*A */
#ifdef ALPHA
u32 reserved[2]; /*C */
#else
u32 reserved[3]; /*C */
#endif
u32 xferlen; /*18 Current xfer len */
u32 totxlen; /*1C Total xfer len */
u32 paddr; /*20 SCB phy. Addr. */
u8 opcode; /*24 SCB command code */
u8 flags; /*25 SCB Flags */
u8 target; /*26 Target Id */
u8 lun; /*27 Lun */
u32 bufptr; /*28 Data Buffer Pointer */
u32 buflen; /*2C Data Allocation Length */
u8 sglen; /*30 SG list # */
u8 senselen; /*31 Sense Allocation Length */
u8 hastat; /*32 */
u8 tastat; /*33 */
u8 cdblen; /*34 CDB Length */
u8 ident; /*35 Identify */
u8 tagmsg; /*36 Tag Message */
u8 tagid; /*37 Queue Tag */
u8 cdb[12]; /*38 */
u32 sgpaddr; /*44 SG List/Sense Buf phy. Addr. */
u32 senseptr; /*48 Sense data pointer */
void (*post) (u8 *, u8 *); /*4C POST routine */
struct scsi_cmnd *srb; /*50 SRB Pointer */
struct sg_entry sglist[TOTAL_SG_ENTRY]; /*54 Start of SG list */
};
/* Bit Definition for status */
#define SCB_RENT 0x01
#define SCB_PEND 0x02
#define SCB_CONTIG 0x04 /* Contigent Allegiance */
#define SCB_SELECT 0x08
#define SCB_BUSY 0x10
#define SCB_DONE 0x20
/* Opcodes for opcode */
#define ExecSCSI 0x1
#define BusDevRst 0x2
#define AbortCmd 0x3
/* Bit Definition for mode */
#define SCM_RSENS 0x01 /* request sense mode */
/* Bit Definition for flags */
#define SCF_DONE 0x01
#define SCF_POST 0x02
#define SCF_SENSE 0x04
#define SCF_DIR 0x18
#define SCF_NO_DCHK 0x00
#define SCF_DIN 0x08
#define SCF_DOUT 0x10
#define SCF_NO_XF 0x18
#define SCF_WR_VF 0x20 /* Write verify turn on */
#define SCF_POLL 0x40
#define SCF_SG 0x80
/* Error Codes for SCB_HaStat */
#define HOST_SEL_TOUT 0x11
#define HOST_DO_DU 0x12
#define HOST_BUS_FREE 0x13
#define HOST_BAD_PHAS 0x14
#define HOST_INV_CMD 0x16
#define HOST_ABORTED 0x1A /* 07/21/98 */
#define HOST_SCSI_RST 0x1B
#define HOST_DEV_RST 0x1C
/* Error Codes for SCB_TaStat */
#define TARGET_CHKCOND 0x02
#define TARGET_BUSY 0x08
#define INI_QUEUE_FULL 0x28
/* SCSI MESSAGE */
#define MSG_COMP 0x00
#define MSG_EXTEND 0x01
#define MSG_SDP 0x02
#define MSG_RESTORE 0x03
#define MSG_DISC 0x04
#define MSG_IDE 0x05
#define MSG_ABORT 0x06
#define MSG_REJ 0x07
#define MSG_NOP 0x08
#define MSG_PARITY 0x09
#define MSG_LINK_COMP 0x0A
#define MSG_LINK_FLAG 0x0B
#define MSG_DEVRST 0x0C
#define MSG_ABORT_TAG 0x0D
/* Queue tag msg: Simple_quque_tag, Head_of_queue_tag, Ordered_queue_tag */
#define MSG_STAG 0x20
#define MSG_HTAG 0x21
#define MSG_OTAG 0x22
#define MSG_IGNOREWIDE 0x23
#define MSG_IDENT 0x80
/***********************************************************************
Target Device Control Structure
**********************************************************************/
struct target_control {
u16 flags;
u8 js_period;
u8 sconfig0;
u16 drv_flags;
u8 heads;
u8 sectors;
};
/***********************************************************************
Target Device Control Structure
**********************************************************************/
/* Bit Definition for TCF_Flags */
#define TCF_SCSI_RATE 0x0007
#define TCF_EN_DISC 0x0008
#define TCF_NO_SYNC_NEGO 0x0010
#define TCF_NO_WDTR 0x0020
#define TCF_EN_255 0x0040
#define TCF_EN_START 0x0080
#define TCF_WDTR_DONE 0x0100
#define TCF_SYNC_DONE 0x0200
#define TCF_BUSY 0x0400
/* Bit Definition for TCF_DrvFlags */
#define TCF_DRV_BUSY 0x01 /* Indicate target busy(driver) */
#define TCF_DRV_EN_TAG 0x0800
#define TCF_DRV_255_63 0x0400
/***********************************************************************
Host Adapter Control Structure
************************************************************************/
struct initio_host {
u16 addr; /* 00 */
u16 bios_addr; /* 02 */
u8 irq; /* 04 */
u8 scsi_id; /* 05 */
u8 max_tar; /* 06 */
u8 num_scbs; /* 07 */
u8 flags; /* 08 */
u8 index; /* 09 */
u8 ha_id; /* 0A */
u8 config; /* 0B */
u16 idmask; /* 0C */
u8 semaph; /* 0E */
u8 phase; /* 0F */
u8 jsstatus0; /* 10 */
u8 jsint; /* 11 */
u8 jsstatus1; /* 12 */
u8 sconf1; /* 13 */
u8 msg[8]; /* 14 */
struct scsi_ctrl_blk *next_avail; /* 1C */
struct scsi_ctrl_blk *scb; /* 20 */
struct scsi_ctrl_blk *scb_end; /* 24 */ /*UNUSED*/
struct scsi_ctrl_blk *next_pending; /* 28 */
struct scsi_ctrl_blk *next_contig; /* 2C */ /*UNUSED*/
struct scsi_ctrl_blk *active; /* 30 */
struct target_control *active_tc; /* 34 */
struct scsi_ctrl_blk *first_avail; /* 38 */
struct scsi_ctrl_blk *last_avail; /* 3C */
struct scsi_ctrl_blk *first_pending; /* 40 */
struct scsi_ctrl_blk *last_pending; /* 44 */
struct scsi_ctrl_blk *first_busy; /* 48 */
struct scsi_ctrl_blk *last_busy; /* 4C */
struct scsi_ctrl_blk *first_done; /* 50 */
struct scsi_ctrl_blk *last_done; /* 54 */
u8 max_tags[16]; /* 58 */
u8 act_tags[16]; /* 68 */
struct target_control targets[MAX_TARGETS]; /* 78 */
spinlock_t avail_lock;
spinlock_t semaph_lock;
struct pci_dev *pci_dev;
};
/* Bit Definition for HCB_Config */
#define HCC_SCSI_RESET 0x01
#define HCC_EN_PAR 0x02
#define HCC_ACT_TERM1 0x04
#define HCC_ACT_TERM2 0x08
#define HCC_AUTO_TERM 0x10
#define HCC_EN_PWR 0x80
/* Bit Definition for HCB_Flags */
#define HCF_EXPECT_DISC 0x01
#define HCF_EXPECT_SELECT 0x02
#define HCF_EXPECT_RESET 0x10
#define HCF_EXPECT_DONE_DISC 0x20
/******************************************************************
Serial EEProm
*******************************************************************/
typedef struct _NVRAM_SCSI { /* SCSI channel configuration */
u8 NVM_ChSCSIID; /* 0Ch -> Channel SCSI ID */
u8 NVM_ChConfig1; /* 0Dh -> Channel config 1 */
u8 NVM_ChConfig2; /* 0Eh -> Channel config 2 */
u8 NVM_NumOfTarg; /* 0Fh -> Number of SCSI target */
/* SCSI target configuration */
u8 NVM_Targ0Config; /* 10h -> Target 0 configuration */
u8 NVM_Targ1Config; /* 11h -> Target 1 configuration */
u8 NVM_Targ2Config; /* 12h -> Target 2 configuration */
u8 NVM_Targ3Config; /* 13h -> Target 3 configuration */
u8 NVM_Targ4Config; /* 14h -> Target 4 configuration */
u8 NVM_Targ5Config; /* 15h -> Target 5 configuration */
u8 NVM_Targ6Config; /* 16h -> Target 6 configuration */
u8 NVM_Targ7Config; /* 17h -> Target 7 configuration */
u8 NVM_Targ8Config; /* 18h -> Target 8 configuration */
u8 NVM_Targ9Config; /* 19h -> Target 9 configuration */
u8 NVM_TargAConfig; /* 1Ah -> Target A configuration */
u8 NVM_TargBConfig; /* 1Bh -> Target B configuration */
u8 NVM_TargCConfig; /* 1Ch -> Target C configuration */
u8 NVM_TargDConfig; /* 1Dh -> Target D configuration */
u8 NVM_TargEConfig; /* 1Eh -> Target E configuration */
u8 NVM_TargFConfig; /* 1Fh -> Target F configuration */
} NVRAM_SCSI;
typedef struct _NVRAM {
/*----------header ---------------*/
u16 NVM_Signature; /* 0,1: Signature */
u8 NVM_Size; /* 2: Size of data structure */
u8 NVM_Revision; /* 3: Revision of data structure */
/* ----Host Adapter Structure ---- */
u8 NVM_ModelByte0; /* 4: Model number (byte 0) */
u8 NVM_ModelByte1; /* 5: Model number (byte 1) */
u8 NVM_ModelInfo; /* 6: Model information */
u8 NVM_NumOfCh; /* 7: Number of SCSI channel */
u8 NVM_BIOSConfig1; /* 8: BIOS configuration 1 */
u8 NVM_BIOSConfig2; /* 9: BIOS configuration 2 */
u8 NVM_HAConfig1; /* A: Hoat adapter configuration 1 */
u8 NVM_HAConfig2; /* B: Hoat adapter configuration 2 */
NVRAM_SCSI NVM_SCSIInfo[2];
u8 NVM_reserved[10];
/* ---------- CheckSum ---------- */
u16 NVM_CheckSum; /* 0x3E, 0x3F: Checksum of NVRam */
} NVRAM, *PNVRAM;
/* Bios Configuration for nvram->BIOSConfig1 */
#define NBC1_ENABLE 0x01 /* BIOS enable */
#define NBC1_8DRIVE 0x02 /* Support more than 2 drives */
#define NBC1_REMOVABLE 0x04 /* Support removable drive */
#define NBC1_INT19 0x08 /* Intercept int 19h */
#define NBC1_BIOSSCAN 0x10 /* Dynamic BIOS scan */
#define NBC1_LUNSUPPORT 0x40 /* Support LUN */
/* HA Configuration Byte 1 */
#define NHC1_BOOTIDMASK 0x0F /* Boot ID number */
#define NHC1_LUNMASK 0x70 /* Boot LUN number */
#define NHC1_CHANMASK 0x80 /* Boot Channel number */
/* Bit definition for nvram->SCSIconfig1 */
#define NCC1_BUSRESET 0x01 /* Reset SCSI bus at power up */
#define NCC1_PARITYCHK 0x02 /* SCSI parity enable */
#define NCC1_ACTTERM1 0x04 /* Enable active terminator 1 */
#define NCC1_ACTTERM2 0x08 /* Enable active terminator 2 */
#define NCC1_AUTOTERM 0x10 /* Enable auto terminator */
#define NCC1_PWRMGR 0x80 /* Enable power management */
/* Bit definition for SCSI Target configuration byte */
#define NTC_DISCONNECT 0x08 /* Enable SCSI disconnect */
#define NTC_SYNC 0x10 /* SYNC_NEGO */
#define NTC_NO_WDTR 0x20 /* SYNC_NEGO */
#define NTC_1GIGA 0x40 /* 255 head / 63 sectors (64/32) */
#define NTC_SPINUP 0x80 /* Start disk drive */
/* Default NVRam values */
#define INI_SIGNATURE 0xC925
#define NBC1_DEFAULT (NBC1_ENABLE)
#define NCC1_DEFAULT (NCC1_BUSRESET | NCC1_AUTOTERM | NCC1_PARITYCHK)
#define NTC_DEFAULT (NTC_NO_WDTR | NTC_1GIGA | NTC_DISCONNECT)
/* SCSI related definition */
#define DISC_NOT_ALLOW 0x80 /* Disconnect is not allowed */
#define DISC_ALLOW 0xC0 /* Disconnect is allowed */
#define SCSICMD_RequestSense 0x03
#define SCSI_ABORT_SNOOZE 0
#define SCSI_ABORT_SUCCESS 1
#define SCSI_ABORT_PENDING 2
#define SCSI_ABORT_BUSY 3
#define SCSI_ABORT_NOT_RUNNING 4
#define SCSI_ABORT_ERROR 5
#define SCSI_RESET_SNOOZE 0
#define SCSI_RESET_PUNT 1
#define SCSI_RESET_SUCCESS 2
#define SCSI_RESET_PENDING 3
#define SCSI_RESET_WAKEUP 4
#define SCSI_RESET_NOT_RUNNING 5
#define SCSI_RESET_ERROR 6
#define SCSI_RESET_SYNCHRONOUS 0x01
#define SCSI_RESET_ASYNCHRONOUS 0x02
#define SCSI_RESET_SUGGEST_BUS_RESET 0x04
#define SCSI_RESET_SUGGEST_HOST_RESET 0x08
#define SCSI_RESET_BUS_RESET 0x100
#define SCSI_RESET_HOST_RESET 0x200
#define SCSI_RESET_ACTION 0xff
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