1 /* $OpenBSD: uhavar.h,v 1.2 2002/03/14 01:26:55 millert 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 TAILQ_HEAD(, uha_mscp) sc_free_mscp;
53 int sc_nummscps;
54 int sc_scsi_dev; /* our scsi id */
55 struct scsi_link sc_link;
56 };
57
58 void uha_attach(struct uha_softc *);
59 void uha_timeout(void *arg);
60 struct uha_mscp *uha_mscp_phys_kv(struct uha_softc *, u_long);
61 void uha_done(struct uha_softc *, struct uha_mscp *);