xref: /openbsd-src/sys/dev/tc/asc.c (revision a28daedfc357b214be5c701aa8ba8adb29a7f1c2)
1 /* $OpenBSD: asc.c,v 1.24 2009/02/16 21:19:07 miod Exp $ */
2 
3 /*-
4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9  * NASA Ames Research Center.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /*
34  * Copyright (c) 1994 Peter Galbavy.  All rights reserved.
35  *
36  * Redistribution and use in source and binary forms, with or without
37  * modification, are permitted provided that the following conditions
38  * are met:
39  * 1. Redistributions of source code must retain the above copyright
40  *    notice, this list of conditions and the following disclaimer.
41  * 2. Redistributions in binary form must reproduce the above copyright
42  *    notice, this list of conditions and the following disclaimer in the
43  *    documentation and/or other materials provided with the distribution.
44  *
45  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55  */
56 
57 #include <sys/param.h>
58 #include <sys/systm.h>
59 #include <sys/device.h>
60 #include <sys/buf.h>
61 
62 #include <scsi/scsi_all.h>
63 #include <scsi/scsiconf.h>
64 
65 #include <dev/ic/ncr53c9xreg.h>
66 #include <dev/ic/ncr53c9xvar.h>
67 #include <dev/tc/ascvar.h>
68 
69 struct cfdriver asc_cd = {
70 	NULL, "asc", DV_DULL,
71 };
72 
73 struct scsi_adapter asc_switch = {
74 	ncr53c9x_scsi_cmd,
75 	scsi_minphys,		/* no max at this level; handled by DMA code */
76 	NULL,
77 	NULL,
78 };
79 
80 struct scsi_device asc_dev = {
81 	NULL,			/* Use default error handler */
82 	NULL,			/* have a queue, served by this */
83 	NULL,			/* have no async handler */
84 	NULL,			/* Use default `done' routine */
85 };
86 
87 /*
88  * Glue functions
89  */
90 u_char
91 asc_read_reg(sc, reg)
92 	struct ncr53c9x_softc *sc;
93 	int reg;
94 {
95 	struct asc_softc *asc = (struct asc_softc *)sc;
96 	u_char v;
97 
98 	v = bus_space_read_4(asc->sc_bst, asc->sc_bsh,
99 	    reg * sizeof(u_int32_t)) & 0xff;
100 
101 	return (v);
102 }
103 
104 void
105 asc_write_reg(sc, reg, val)
106 	struct ncr53c9x_softc *sc;
107 	int reg;
108 	u_char val;
109 {
110 	struct asc_softc *asc = (struct asc_softc *)sc;
111 
112 	bus_space_write_4(asc->sc_bst, asc->sc_bsh,
113 	    reg * sizeof(u_int32_t), val);
114 }
115 
116