Release 4.14 drivers/scsi/aha1542.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _AHA1542_H_

#define _AHA1542_H_

#include <linux/types.h>

/* I/O Port interface 4.2 */
/* READ */

#define STATUS(base) base

#define STST	BIT(7)		
/* Self Test in Progress */

#define DIAGF	BIT(6)		
/* Internal Diagnostic Failure */

#define INIT	BIT(5)		
/* Mailbox Initialization Required */

#define IDLE	BIT(4)		
/* SCSI Host Adapter Idle */

#define CDF	BIT(3)		
/* Command/Data Out Port Full */

#define DF	BIT(2)		
/* Data In Port Full */
/* BIT(1) is reserved */

#define INVDCMD	BIT(0)		
/* Invalid H A Command */

#define STATMASK (STST | DIAGF | INIT | IDLE | CDF | DF | INVDCMD)


#define INTRFLAGS(base) (STATUS(base)+2)

#define ANYINTR	BIT(7)		
/* Any Interrupt */

#define SCRD	BIT(3)		
/* SCSI Reset Detected */

#define HACC	BIT(2)		
/* HA Command Complete */

#define MBOA	BIT(1)		
/* MBO Empty */

#define MBIF	BIT(0)		
/* MBI Full */

#define INTRMASK (ANYINTR | SCRD | HACC | MBOA | MBIF)

/* WRITE */

#define CONTROL(base) STATUS(base)

#define HRST	BIT(7)		
/* Hard Reset */

#define SRST	BIT(6)		
/* Soft Reset */

#define IRST	BIT(5)		
/* Interrupt Reset */

#define SCRST	BIT(4)		
/* SCSI Bus Reset */

/* READ/WRITE */

#define DATA(base) (STATUS(base)+1)

#define CMD_NOP		0x00	
/* No Operation */

#define CMD_MBINIT	0x01	
/* Mailbox Initialization */

#define CMD_START_SCSI	0x02	
/* Start SCSI Command */

#define CMD_INQUIRY	0x04	
/* Adapter Inquiry */

#define CMD_EMBOI	0x05	
/* Enable MailBox Out Interrupt */

#define CMD_BUSON_TIME	0x07	
/* Set Bus-On Time */

#define CMD_BUSOFF_TIME	0x08	
/* Set Bus-Off Time */

#define CMD_DMASPEED	0x09	
/* Set AT Bus Transfer Speed */

#define CMD_RETDEVS	0x0a	
/* Return Installed Devices */

#define CMD_RETCONF	0x0b	
/* Return Configuration Data */

#define CMD_RETSETUP	0x0d	
/* Return Setup Data */

#define CMD_ECHO	0x1f	
/* ECHO Command Data */


#define CMD_EXTBIOS     0x28    
/* Return extend bios information only 1542C */

#define CMD_MBENABLE    0x29    
/* Set Mailbox Interface enable only 1542C */

/* Mailbox Definition 5.2.1 and 5.2.2 */

struct mailbox {
	
u8 status;	/* Command/Status */
	
u8 ccbptr[3];	/* msb, .., lsb */
};

/* This is used with scatter-gather */

struct chain {
	
u8 datalen[3];	/* Size of this part of chain */
	
u8 dataptr[3];	/* Location of data */
};

/* These belong in scsi.h also */


static inline void any2scsi(u8 *p, u32 v)
{
	p[0] = v >> 16;
	p[1] = v >> 8;
	p[2] = v;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Al Viro
35
89.74%
1
50.00%
Linus Torvalds (pre-git)
4
10.26%
1
50.00%
Total
39
100.00%
2
100.00%


#define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )


#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


struct ccb {		/* Command Control Block 5.3 */
	
u8 op;		/* Command Control Block Operation Code */
	
u8 idlun;	/* op=0,2:Target Id, op=1:Initiator Id */
			/* Outbound data transfer, length is checked*/
			/* Inbound data transfer, length is checked */
			/* Logical Unit Number */
	
u8 cdblen;	/* SCSI Command Length */
	
u8 rsalen;	/* Request Sense Allocation Length/Disable */
	
u8 datalen[3];	/* Data Length (msb, .., lsb) */
	
u8 dataptr[3];	/* Data Pointer */
	
u8 linkptr[3];	/* Link Pointer */
	
u8 commlinkid;	/* Command Linking Identifier */
	
u8 hastat;	/* Host Adapter Status (HASTAT) */
	
u8 tarstat;	/* Target Device Status */
	
u8 reserved[2];
	
u8 cdb[MAX_CDB+MAX_SENSE];	/* SCSI Command Descriptor Block */
					/* REQUEST SENSE */
};


#define AHA1542_REGION_SIZE 4

#define AHA1542_MAILBOXES 8

#endif /* _AHA1542_H_ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
305
79.22%
6
50.00%
Ondrej Zary
44
11.43%
4
33.33%
Al Viro
35
9.09%
1
8.33%
Greg Kroah-Hartman
1
0.26%
1
8.33%
Total
385
100.00%
12
100.00%
Directory: drivers/scsi

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