xref: /openbsd/sys/dev/ic/uhavar.h (revision 3cab2bb3)
1 /*	$OpenBSD: uhavar.h,v 1.5 2020/07/22 13:16:04 krw Exp $	*/
2 /*	$NetBSD: uhavar.h,v 1.3 1996/10/21 22:34:43 thorpej Exp $	*/
3 
4 /*
5  * Copyright (c) 1994, 1996 Charles M. Hannum.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Charles M. Hannum.
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #define UHA_MSCP_MAX	32	/* store up to 32 MSCPs at one time */
34 #define	MSCP_HASH_SIZE	32	/* hash table size for phystokv */
35 #define	MSCP_HASH_SHIFT	9
36 #define MSCP_HASH(x)	((((long)(x))>>MSCP_HASH_SHIFT) & (MSCP_HASH_SIZE - 1))
37 
38 struct uha_softc {
39 	struct device sc_dev;
40 
41 	bus_space_tag_t sc_iot;
42 	bus_space_handle_t sc_ioh;
43 
44 	int sc_irq, sc_drq;
45 	void *sc_ih;
46 
47 	void (*start_mbox)(struct uha_softc *, struct uha_mscp *);
48 	int (*poll)(struct uha_softc *, struct scsi_xfer *, int);
49 	void (*init)(struct uha_softc *);
50 
51 	struct uha_mscp *sc_mscphash[MSCP_HASH_SIZE];
52 	SLIST_HEAD(, uha_mscp) sc_free_mscp;
53 
54 	struct mutex		sc_mscp_mtx;
55 	struct scsi_iopool	sc_iopool;
56 
57 	int sc_nummscps;
58 	int sc_scsi_dev;		/* our scsi id */
59 };
60 
61 void	uha_attach(struct uha_softc *);
62 void	uha_timeout(void *arg);
63 struct	uha_mscp *uha_mscp_phys_kv(struct uha_softc *, u_long);
64 void	uha_done(struct uha_softc *, struct uha_mscp *);
65