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kernel/linux-imx6_3.14.28/drivers/scsi/aha1740.h 4.84 KB
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  #ifndef _AHA1740_H
  
  /* $Id$
   *
   * Header file for the adaptec 1740 driver for Linux
   *
   * With minor revisions 3/31/93
   * Written and (C) 1992,1993 Brad McLean.  See aha1740.c
   * for more info
   *
   */
  
  #include <linux/types.h>
  
  #define SLOTSIZE	0x5c
  
  /* EISA configuration registers & values */
  #define	HID0(base)	(base + 0x0)
  #define	HID1(base)	(base + 0x1)
  #define HID2(base)	(base + 0x2)
  #define	HID3(base)	(base + 0x3)
  #define	EBCNTRL(base)	(base + 0x4)
  #define	PORTADR(base)	(base + 0x40)
  #define BIOSADR(base)	(base + 0x41)
  #define INTDEF(base)	(base + 0x42)
  #define SCSIDEF(base)	(base + 0x43)
  #define BUSDEF(base)	(base + 0x44)
  #define	RESV0(base)	(base + 0x45)
  #define RESV1(base)	(base + 0x46)
  #define	RESV2(base)	(base + 0x47)
  
  #define	HID_MFG	"ADP"
  #define	HID_PRD 0
  #define HID_REV 2
  #define EBCNTRL_VALUE 1
  #define PORTADDR_ENH 0x80
  /* READ */
  #define	G2INTST(base)	(base + 0x56)
  #define G2STAT(base)	(base + 0x57)
  #define	MBOXIN0(base)	(base + 0x58)
  #define	MBOXIN1(base)	(base + 0x59)
  #define	MBOXIN2(base)	(base + 0x5a)
  #define	MBOXIN3(base)	(base + 0x5b)
  #define G2STAT2(base)	(base + 0x5c)
  
  #define G2INTST_MASK		0xf0	/* isolate the status */
  #define	G2INTST_CCBGOOD		0x10	/* CCB Completed */
  #define	G2INTST_CCBRETRY	0x50	/* CCB Completed with a retry */
  #define	G2INTST_HARDFAIL	0x70	/* Adapter Hardware Failure */
  #define	G2INTST_CMDGOOD		0xa0	/* Immediate command success */
  #define G2INTST_CCBERROR	0xc0	/* CCB Completed with error */
  #define	G2INTST_ASNEVENT	0xd0	/* Asynchronous Event Notification */
  #define	G2INTST_CMDERROR	0xe0	/* Immediate command error */
  
  #define G2STAT_MBXOUT	4	/* Mailbox Out Empty Bit */
  #define	G2STAT_INTPEND	2	/* Interrupt Pending Bit */
  #define	G2STAT_BUSY	1	/* Busy Bit (attention pending) */
  
  #define G2STAT2_READY	0	/* Host Ready Bit */
  
  /* WRITE (and ReadBack) */
  #define	MBOXOUT0(base)	(base + 0x50)
  #define	MBOXOUT1(base)	(base + 0x51)
  #define	MBOXOUT2(base)	(base + 0x52)
  #define	MBOXOUT3(base)	(base + 0x53)
  #define	ATTN(base)	(base + 0x54)
  #define G2CNTRL(base)	(base + 0x55)
  
  #define	ATTN_IMMED	0x10	/* Immediate Command */
  #define	ATTN_START	0x40	/* Start CCB */
  #define	ATTN_ABORT	0x50	/* Abort CCB */
  
  #define G2CNTRL_HRST	0x80	/* Hard Reset */
  #define G2CNTRL_IRST	0x40	/* Clear EISA Interrupt */
  #define G2CNTRL_HRDY	0x20	/* Sets HOST ready */
  
  /* This is used with scatter-gather */
  struct aha1740_chain {
  	u32 dataptr;		/* Location of data */
  	u32 datalen;		/* Size of this part of chain */
  };
  
  /* These belong in scsi.h */
  #define any2scsi(up, p)				\
  (up)[0] = (((unsigned long)(p)) >> 16)  ;	\
  (up)[1] = (((unsigned long)(p)) >> 8);		\
  (up)[2] = ((unsigned long)(p));
  
  #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
  
  #define xany2scsi(up, p)	\
  (up)[0] = ((long)(p)) >> 24;	\
  (up)[1] = ((long)(p)) >> 16;	\
  (up)[2] = ((long)(p)) >> 8;	\
  (up)[3] = ((long)(p));
  
  #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
  		      + (((long)(up)[2]) <<  8) +  ((long)(up)[3]) )
  
  #define MAX_CDB 12
  #define MAX_SENSE 14
  #define MAX_STATUS 32
  
  struct ecb {			/* Enhanced Control Block 6.1 */
  	u16 cmdw;		/* Command Word */
  	/* Flag Word 1 */
  	u16 cne:1,		/* Control Block Chaining */
  	:6, di:1,		/* Disable Interrupt */
  	:2, ses:1,		/* Suppress Underrun error */
  	:1, sg:1,		/* Scatter/Gather */
  	:1, dsb:1,		/* Disable Status Block */
  	 ars:1;			/* Automatic Request Sense */
  	/* Flag Word 2 */
  	u16 lun:3,		/* Logical Unit */
  	 tag:1,			/* Tagged Queuing */
  	 tt:2,			/* Tag Type */
  	 nd:1,			/* No Disconnect */
  	:1, dat:1,		/* Data transfer - check direction */
  	 dir:1,			/* Direction of transfer 1 = datain */
  	 st:1,			/* Suppress Transfer */
  	 chk:1,			/* Calculate Checksum */
  	:2, rec:1,:1;		/* Error Recovery */
  	u16 nil0;		/* nothing */
  	u32 dataptr;		/* Data or Scatter List ptr */
  	u32 datalen;		/* Data or Scatter List len */
  	u32 statusptr;		/* Status Block ptr */
  	u32 linkptr;		/* Chain Address */
  	u32 nil1;		/* nothing */
  	u32 senseptr;		/* Sense Info Pointer */
  	u8 senselen;		/* Sense Length */
  	u8 cdblen;		/* CDB Length */
  	u16 datacheck;		/* Data checksum */
  	u8 cdb[MAX_CDB];	/* CDB area */
  /* Hardware defined portion ends here, rest is driver defined */
  	u8 sense[MAX_SENSE];	/* Sense area */
  	u8 status[MAX_STATUS];	/* Status area */
  	Scsi_Cmnd *SCpnt;	/* Link to the SCSI Command Block */
  	void (*done) (Scsi_Cmnd *);	/* Completion Function */
  };
  
  #define	AHA1740CMD_NOP	 0x00	/* No OP */
  #define AHA1740CMD_INIT	 0x01	/* Initiator SCSI Command */
  #define AHA1740CMD_DIAG	 0x05	/* Run Diagnostic Command */
  #define AHA1740CMD_SCSI	 0x06	/* Initialize SCSI */
  #define AHA1740CMD_SENSE 0x08	/* Read Sense Information */
  #define AHA1740CMD_DOWN  0x09	/* Download Firmware (yeah, I bet!) */
  #define AHA1740CMD_RINQ  0x0a	/* Read Host Adapter Inquiry Data */
  #define AHA1740CMD_TARG  0x10	/* Target SCSI Command */
  
  #define AHA1740_ECBS 32
  #define AHA1740_SCATTER 16
  #define AHA1740_CMDLUN 1
  
  #endif