[mirror_ubuntu-artful-kernel.git] / drivers / scsi / aha1542.h

#ifndef _AHA1542_H

/* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $
 *
 * Header file for the adaptec 1542 driver for Linux
 *
 * $Log: aha1542.h,v $
 * Revision 1.1  1992/07/24  06:27:38  root
 * Initial revision
 *
 * Revision 1.2  1992/07/04  18:41:49  root
 * Replaced distribution with current drivers
 *
 * Revision 1.3  1992/06/23  23:58:20  root
 * Fixes.
 *
 * Revision 1.2  1992/05/26  22:13:23  root
 * Changed bug that prevented DMA above first 2 mbytes.
 *
 * Revision 1.1  1992/05/22  21:00:29  root
 * Initial revision
 *
 * Revision 1.1  1992/04/24  18:01:50  root
 * Initial revision
 *
 * Revision 1.1  1992/04/02  03:23:13  drew
 * Initial revision
 *
 * Revision 1.3  1992/01/27  14:46:29  tthorn
 * *** empty log message ***
 *
 */

#include <linux/types.h>

/* I/O Port interface 4.2 */
/* READ */
#define STATUS(base) base
#define STST	0x80		/* Self Test in Progress */
#define DIAGF	0x40		/* Internal Diagnostic Failure */
#define INIT	0x20		/* Mailbox Initialization Required */
#define IDLE	0x10		/* SCSI Host Adapter Idle */
#define CDF	0x08		/* Command/Data Out Port Full */
#define DF	0x04		/* Data In Port Full */
#define INVDCMD	0x01		/* Invalid H A Command */
#define STATMASK 0xfd		/* 0x02 is reserved */

#define INTRFLAGS(base) (STATUS(base)+2)
#define ANYINTR	0x80		/* Any Interrupt */
#define SCRD	0x08		/* SCSI Reset Detected */
#define HACC	0x04		/* HA Command Complete */
#define MBOA	0x02		/* MBO Empty */
#define MBIF	0x01		/* MBI Full */
#define INTRMASK 0x8f

/* WRITE */
#define CONTROL(base) STATUS(base)
#define HRST	0x80		/* Hard Reset */
#define SRST	0x40		/* Soft Reset */
#define IRST	0x20		/* Interrupt Reset */
#define SCRST	0x10		/* 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 {
  unchar status;		/* Command/Status */
  unchar ccbptr[3];		/* msb, .., lsb */
};

/* This is used with scatter-gather */
struct chain {
  unchar datalen[3];		/* Size of this part of chain */
  unchar 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;
}

#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

struct ccb {			/* Command Control Block 5.3 */
  unchar op;			/* Command Control Block Operation Code */
  unchar 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 */
  unchar cdblen;		/* SCSI Command Length */
  unchar rsalen;		/* Request Sense Allocation Length/Disable */
  unchar datalen[3];		/* Data Length (msb, .., lsb) */
  unchar dataptr[3];		/* Data Pointer */
  unchar linkptr[3];		/* Link Pointer */
  unchar commlinkid;		/* Command Linking Identifier */
  unchar hastat;		/* Host Adapter Status (HASTAT) */
  unchar tarstat;		/* Target Device Status */
  unchar reserved[2];
  unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
				/* REQUEST SENSE */
};

static int aha1542_detect(struct scsi_host_template *);
static int aha1542_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
static int aha1542_bus_reset(Scsi_Cmnd * SCpnt);
static int aha1542_dev_reset(Scsi_Cmnd * SCpnt);
static int aha1542_host_reset(Scsi_Cmnd * SCpnt);
#if 0
static int aha1542_old_abort(Scsi_Cmnd * SCpnt);
static int aha1542_old_reset(Scsi_Cmnd *, unsigned int);
#endif
static int aha1542_biosparam(struct scsi_device *, struct block_device *,
		sector_t, int *);

#define AHA1542_MAILBOXES 8
#define AHA1542_SCATTER 16
#define AHA1542_CMDLUN 1

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef _AHA1542_H
	2
	3	/* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $
	4	*
	5	* Header file for the adaptec 1542 driver for Linux
	6	*
	7	* $Log: aha1542.h,v $
	8	* Revision 1.1 1992/07/24 06:27:38 root
	9	* Initial revision
	10	*
	11	* Revision 1.2 1992/07/04 18:41:49 root
	12	* Replaced distribution with current drivers
	13	*
	14	* Revision 1.3 1992/06/23 23:58:20 root
	15	* Fixes.
	16	*
	17	* Revision 1.2 1992/05/26 22:13:23 root
	18	* Changed bug that prevented DMA above first 2 mbytes.
	19	*
	20	* Revision 1.1 1992/05/22 21:00:29 root
	21	* Initial revision
	22	*
	23	* Revision 1.1 1992/04/24 18:01:50 root
	24	* Initial revision
	25	*
	26	* Revision 1.1 1992/04/02 03:23:13 drew
	27	* Initial revision
	28	*
	29	* Revision 1.3 1992/01/27 14:46:29 tthorn
	30	* * empty log message *
	31	*
	32	*/
	33
	34	#include <linux/types.h>
	35
	36	/* I/O Port interface 4.2 */
	37	/* READ */
	38	#define STATUS(base) base
	39	#define STST 0x80 /* Self Test in Progress */
	40	#define DIAGF 0x40 /* Internal Diagnostic Failure */
	41	#define INIT 0x20 /* Mailbox Initialization Required */
	42	#define IDLE 0x10 /* SCSI Host Adapter Idle */
	43	#define CDF 0x08 /* Command/Data Out Port Full */
	44	#define DF 0x04 /* Data In Port Full */
	45	#define INVDCMD 0x01 /* Invalid H A Command */
	46	#define STATMASK 0xfd /* 0x02 is reserved */
	47
	48	#define INTRFLAGS(base) (STATUS(base)+2)
	49	#define ANYINTR 0x80 /* Any Interrupt */
	50	#define SCRD 0x08 /* SCSI Reset Detected */
	51	#define HACC 0x04 /* HA Command Complete */
	52	#define MBOA 0x02 /* MBO Empty */
	53	#define MBIF 0x01 /* MBI Full */
	54	#define INTRMASK 0x8f
	55
	56	/* WRITE */
	57	#define CONTROL(base) STATUS(base)
	58	#define HRST 0x80 /* Hard Reset */
	59	#define SRST 0x40 /* Soft Reset */
	60	#define IRST 0x20 /* Interrupt Reset */
	61	#define SCRST 0x10 /* SCSI Bus Reset */
	62
	63	/* READ/WRITE */
	64	#define DATA(base) (STATUS(base)+1)
65	#define CMD_NOP 0x00 /* No Operation */
66	#define CMD_MBINIT 0x01 /* Mailbox Initialization */
67	#define CMD_START_SCSI 0x02 /* Start SCSI Command */
68	#define CMD_INQUIRY 0x04 /* Adapter Inquiry */
69	#define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */
70	#define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */
71	#define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */
72	#define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */
73	#define CMD_RETDEVS 0x0a /* Return Installed Devices */
74	#define CMD_RETCONF 0x0b /* Return Configuration Data */
75	#define CMD_RETSETUP 0x0d /* Return Setup Data */
76	#define CMD_ECHO 0x1f /* ECHO Command Data */
77
78	#define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */
79	#define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */
80
81	/* Mailbox Definition 5.2.1 and 5.2.2 */
82	struct mailbox {
83	unchar status; /* Command/Status */
84	unchar ccbptr[3]; /* msb, .., lsb */
85	};
86
87	/* This is used with scatter-gather */
88	struct chain {
89	unchar datalen[3]; /* Size of this part of chain */
90	unchar dataptr[3]; /* Location of data */
91	};
92
93	/* These belong in scsi.h also */
94	static inline void any2scsi(u8 *p, u32 v)
95	{
96	p[0] = v >> 16;
97	p[1] = v >> 8;
98	p[2] = v;
99	}
100
101	#define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
102
103	#define xany2scsi(up, p) \
104	(up)[0] = ((long)(p)) >> 24; \
105	(up)[1] = ((long)(p)) >> 16; \
106	(up)[2] = ((long)(p)) >> 8; \
107	(up)[3] = ((long)(p));
108
109	#define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
110	+ (((long)(up)[2]) << 8) + ((long)(up)[3]) )
111
112	#define MAX_CDB 12
113	#define MAX_SENSE 14
114
115	struct ccb { /* Command Control Block 5.3 */
116	unchar op; /* Command Control Block Operation Code */
117	unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */
118	/* Outbound data transfer, length is checked*/
119	/* Inbound data transfer, length is checked */
120	/* Logical Unit Number */
121	unchar cdblen; /* SCSI Command Length */
122	unchar rsalen; /* Request Sense Allocation Length/Disable */
123	unchar datalen[3]; /* Data Length (msb, .., lsb) */
124	unchar dataptr[3]; /* Data Pointer */
125	unchar linkptr[3]; /* Link Pointer */
126	unchar commlinkid; /* Command Linking Identifier */
127	unchar hastat; /* Host Adapter Status (HASTAT) */
128	unchar tarstat; /* Target Device Status */
129	unchar reserved[2];
130	unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
131	/* REQUEST SENSE */
132	};
133
d0be4a7d	134	static int aha1542_detect(struct scsi_host_template *);
f281233d	135	static int aha1542_queuecommand(struct Scsi_Host , struct scsi_cmnd );
1da177e4 LT	136	static int aha1542_bus_reset(Scsi_Cmnd * SCpnt);
	137	static int aha1542_dev_reset(Scsi_Cmnd * SCpnt);
	138	static int aha1542_host_reset(Scsi_Cmnd * SCpnt);
	139	#if 0
	140	static int aha1542_old_abort(Scsi_Cmnd * SCpnt);
	141	static int aha1542_old_reset(Scsi_Cmnd *, unsigned int);
	142	#endif
	143	static int aha1542_biosparam(struct scsi_device , struct block_device ,
	144	sector_t, int *);
	145
	146	#define AHA1542_MAILBOXES 8
	147	#define AHA1542_SCATTER 16
	148	#define AHA1542_CMDLUN 1
	149
	150	#endif