tmscsim.h

来自「Linux Kernel 2.6.9 for OMAP1710」· C头文件 代码 · 共 652 行 · 第 1/2 页

/***********************************************************************
;*	File Name : TMSCSIM.H					       *
;*		    TEKRAM DC-390(T) PCI SCSI Bus Master Host Adapter  *
;*		    Device Driver				       *
;***********************************************************************/
/* $Id: tmscsim.h,v 2.15.2.3 2000/11/17 20:52:27 garloff Exp $ */

#ifndef _TMSCSIM_H
#define _TMSCSIM_H

#include <linux/types.h>
#include <linux/config.h>

#define SCSI_IRQ_NONE 255

#define MAX_ADAPTER_NUM 	4
#define MAX_SG_LIST_BUF 	16	/* Not used */
#define MAX_CMD_PER_LUN 	32
#define MAX_CMD_QUEUE		MAX_CMD_PER_LUN+MAX_CMD_PER_LUN/2+1	
#define MAX_SCSI_ID		8
#define MAX_SRB_CNT		MAX_CMD_QUEUE+1	/* Max number of started commands */

#define SEL_TIMEOUT		153	/* 250 ms selection timeout (@ 40 MHz) */

#define pci_dma_lo32(a)			(a & 0xffffffff)

typedef u8		UCHAR;	/*  8 bits */
typedef u16		USHORT;	/* 16 bits */
typedef u32		UINT;	/* 32 bits */
typedef unsigned long	ULONG;	/* 32/64 bits */


/*
;-----------------------------------------------------------------------
; SCSI Request Block
;-----------------------------------------------------------------------
*/
struct dc390_srb
{
//u8		CmdBlock[12];

struct dc390_srb	*pNextSRB;
struct dc390_dcb	*pSRBDCB;
struct scsi_cmnd	*pcmd;
struct scatterlist	*pSegmentList;

/* 0x10: */
struct scatterlist Segmentx;	/* make a one entry of S/G list table */

/* 0x1c: */
unsigned long	SGBusAddr;	/*;a segment starting address as seen by AM53C974A*/
unsigned long	SGToBeXferLen;	/*; to be xfer length */
unsigned long	TotalXferredLen;
unsigned long	SavedTotXLen;
u32		SRBState;

/* 0x30: */
u8		SRBStatus;
u8		SRBFlag;	/*; b0-AutoReqSense,b6-Read,b7-write */
				/*; b4-settimeout,b5-Residual valid */
u8		AdaptStatus;
u8		TargetStatus;

u8		ScsiPhase;
u8		TagNumber;
u8		SGIndex;
u8		SGcount;

/* 0x38: */
u8		MsgCnt;
u8		EndMessage;
u8		RetryCnt;
u8		SavedSGCount;			

unsigned long	Saved_Ptr;

/* 0x40: */
u8		MsgInBuf[6];
u8		MsgOutBuf[6];

//u8		IORBFlag;	/*;81h-Reset, 2-retry */
/* 0x4c: */
};


/*
;-----------------------------------------------------------------------
; Device Control Block
;-----------------------------------------------------------------------
*/
struct dc390_dcb
{
struct dc390_dcb	*pNextDCB;
struct dc390_acb	*pDCBACB;

/* 0x08: */
/* Queued SRBs */
struct dc390_srb	*pWaitingSRB;
struct dc390_srb	*pWaitLast;
struct dc390_srb	*pGoingSRB;
struct dc390_srb	*pGoingLast;
struct dc390_srb	*pActiveSRB;
u8		WaitSRBCnt;	/* Not used */
u8		GoingSRBCnt;

u8		DevType;
u8		MaxCommand;

/* 0x20: */
u32		TagMask;

u8		TargetID;	/*; SCSI Target ID  (SCSI Only) */
u8		TargetLUN;	/*; SCSI Log.  Unit (SCSI Only) */
u8		DevMode;
u8		DCBFlag;

u8		CtrlR1;
u8		CtrlR3;
u8		CtrlR4;
u8		Inquiry7;

/* 0x2c: */
u8		SyncMode;	/*; 0:async mode */
u8		NegoPeriod;	/*;for nego. */
u8		SyncPeriod;	/*;for reg. */
u8		SyncOffset;	/*;for reg. and nego.(low nibble) */

/* 0x30:*/
//u8		InqDataBuf[8];
//u8		CapacityBuf[8];
///* 0x40: */
};


/*
;-----------------------------------------------------------------------
; Adapter Control Block
;-----------------------------------------------------------------------
*/
struct dc390_acb
{
struct Scsi_Host *pScsiHost;
struct dc390_acb	*pNextACB;
u16		IOPortBase;
u8		IRQLevel;
u8		status;

u8		SRBCount;
u8		AdapterIndex;	/*; nth Adapter this driver */
u8		DCBCnt;

u8		TagMaxNum;
u8		ACBFlag;
u8		Gmode2;
u8		scan_devices;

struct dc390_dcb	*pLinkDCB;
struct dc390_dcb	*pLastDCB;
struct dc390_dcb	*pDCBRunRobin;

struct dc390_dcb	*pActiveDCB;
struct dc390_srb	*pFreeSRB;
struct dc390_srb	*pTmpSRB;

u8		msgin123[4];
u8		Connected;
u8		pad;

#if defined(USE_SPINLOCKS) && USE_SPINLOCKS > 1 && (defined(CONFIG_SMP) || DEBUG_SPINLOCKS > 0)
spinlock_t	lock;
#endif
u8		sel_timeout;
u8		glitch_cfg;

u8		MsgLen;
u8		Ignore_IRQ;	/* Not used */

struct pci_dev	*pdev;

unsigned long	Cmds;
u32		SelLost;
u32		SelConn;
u32		CmdInQ;
u32		CmdOutOfSRB;
	
struct timer_list	Waiting_Timer;

struct dc390_srb	TmpSRB;
struct dc390_srb	SRB_array[MAX_SRB_CNT]; 	/* 50 SRBs */
};


/*;-----------------------------------------------------------------------*/


#define BIT31	0x80000000
#define BIT30	0x40000000
#define BIT29	0x20000000
#define BIT28	0x10000000
#define BIT27	0x08000000
#define BIT26	0x04000000
#define BIT25	0x02000000
#define BIT24	0x01000000
#define BIT23	0x00800000
#define BIT22	0x00400000
#define BIT21	0x00200000
#define BIT20	0x00100000
#define BIT19	0x00080000
#define BIT18	0x00040000
#define BIT17	0x00020000
#define BIT16	0x00010000
#define BIT15	0x00008000
#define BIT14	0x00004000
#define BIT13	0x00002000
#define BIT12	0x00001000
#define BIT11	0x00000800
#define BIT10	0x00000400
#define BIT9	0x00000200
#define BIT8	0x00000100
#define BIT7	0x00000080
#define BIT6	0x00000040
#define BIT5	0x00000020
#define BIT4	0x00000010
#define BIT3	0x00000008
#define BIT2	0x00000004
#define BIT1	0x00000002
#define BIT0	0x00000001

/*;---UnitCtrlFlag */
#define UNIT_ALLOCATED	BIT0
#define UNIT_INFO_CHANGED BIT1
#define FORMATING_MEDIA BIT2
#define UNIT_RETRY	BIT3

/*;---UnitFlags */
#define DASD_SUPPORT	BIT0
#define SCSI_SUPPORT	BIT1
#define ASPI_SUPPORT	BIT2

/*;----SRBState machine definition */
#define SRB_FREE	0
#define SRB_WAIT	BIT0
#define SRB_READY	BIT1
#define SRB_MSGOUT	BIT2	/*;arbitration+msg_out 1st byte*/
#define SRB_MSGIN	BIT3
#define SRB_MSGIN_MULTI BIT4
#define SRB_COMMAND	BIT5
#define SRB_START_	BIT6	/*;arbitration+msg_out+command_out*/
#define SRB_DISCONNECT	BIT7
#define SRB_DATA_XFER	BIT8
#define SRB_XFERPAD	BIT9
#define SRB_STATUS	BIT10
#define SRB_COMPLETED	BIT11
#define SRB_ABORT_SENT	BIT12
#define DO_SYNC_NEGO	BIT13
#define SRB_UNEXPECT_RESEL BIT14

/*;---SRBstatus */
#define SRB_OK		BIT0
#define ABORTION	BIT1
#define OVER_RUN	BIT2
#define UNDER_RUN	BIT3
#define PARITY_ERROR	BIT4
#define SRB_ERROR	BIT5

/*;---ACBFlag */
#define RESET_DEV	BIT0
#define RESET_DETECT	BIT1
#define RESET_DONE	BIT2

/*;---DCBFlag */
#define ABORT_DEV_	BIT0

/*;---SRBFlag */
#define DATAOUT 	BIT7
#define DATAIN		BIT6
#define RESIDUAL_VALID	BIT5
#define ENABLE_TIMER	BIT4
#define RESET_DEV0	BIT2
#define ABORT_DEV	BIT1
#define AUTO_REQSENSE	BIT0

/*;---Adapter status */
#define H_STATUS_GOOD	 0
#define H_SEL_TIMEOUT	 0x11
#define H_OVER_UNDER_RUN 0x12
#define H_UNEXP_BUS_FREE 0x13
#define H_TARGET_PHASE_F 0x14
#define H_INVALID_CCB_OP 0x16
#define H_LINK_CCB_BAD	 0x17
#define H_BAD_TARGET_DIR 0x18
#define H_DUPLICATE_CCB  0x19
#define H_BAD_CCB_OR_SG  0x1A
#define H_ABORT 	 0x0FF

/*; SCSI Status byte codes*/ 
/* The values defined in include/scsi/scsi.h, to be shifted << 1 */

#define SCSI_STAT_UNEXP_BUS_F	0xFD	/*;  Unexpect Bus Free */
#define SCSI_STAT_BUS_RST_DETECT 0xFE	/*;  Scsi Bus Reset detected */
#define SCSI_STAT_SEL_TIMEOUT	0xFF	/*;  Selection Time out */

/* cmd->result */
#define RES_TARGET		0x000000FF	/* Target State */
#define RES_TARGET_LNX		STATUS_MASK	/* Only official ... */
#define RES_ENDMSG		0x0000FF00	/* End Message */
#define RES_DID			0x00FF0000	/* DID_ codes */
#define RES_DRV			0xFF000000	/* DRIVER_ codes */

#define MK_RES(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt))
#define MK_RES_LNX(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt)<<1)

#define SET_RES_TARGET(who,tgt) { who &= ~RES_TARGET; who |= (int)(tgt); }
#define SET_RES_TARGET_LNX(who,tgt) { who &= ~RES_TARGET_LNX; who |= (int)(tgt) << 1; }
#define SET_RES_MSG(who,msg) { who &= ~RES_ENDMSG; who |= (int)(msg) << 8; }
#define SET_RES_DID(who,did) { who &= ~RES_DID; who |= (int)(did) << 16; }
#define SET_RES_DRV(who,drv) { who &= ~RES_DRV; who |= (int)(drv) << 24; }

/*;---Sync_Mode */
#define SYNC_DISABLE	0
#define SYNC_ENABLE	BIT0
#define SYNC_NEGO_DONE	BIT1
#define WIDE_ENABLE	BIT2	/* Not used ;-) */
#define WIDE_NEGO_DONE	BIT3	/* Not used ;-) */
#define EN_TAG_QUEUEING	BIT4
#define EN_ATN_STOP	BIT5