Annotation of sys/dev/isa/aic_isa.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: aic_isa.c,v 1.4 2002/03/14 01:26:56 millert Exp $ */
2: /* $NetBSD: aic6360.c,v 1.52 1996/12/10 21:27:51 thorpej Exp $ */
3:
4: /*
5: * Copyright (c) 1994, 1995, 1996 Charles 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: * Copyright (c) 1994 Jarle Greipsland
22: * All rights reserved.
23: *
24: * Redistribution and use in source and binary forms, with or without
25: * modification, are permitted provided that the following conditions
26: * are met:
27: * 1. Redistributions of source code must retain the above copyright
28: * notice, this list of conditions and the following disclaimer.
29: * 2. Redistributions in binary form must reproduce the above copyright
30: * notice, this list of conditions and the following disclaimer in the
31: * documentation and/or other materials provided with the distribution.
32: * 3. The name of the author may not be used to endorse or promote products
33: * derived from this software without specific prior written permission.
34: *
35: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
36: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
37: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
39: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
40: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
41: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
42: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
43: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
44: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
45: * POSSIBILITY OF SUCH DAMAGE.
46: */
47:
48: /*
49: * Acknowledgements: Many of the algorithms used in this driver are
50: * inspired by the work of Julian Elischer (julian@tfs.com) and
51: * Charles Hannum (mycroft@duality.gnu.ai.mit.edu). Thanks a million!
52: */
53:
54: #include <sys/types.h>
55: #include <sys/param.h>
56: #include <sys/systm.h>
57: #include <sys/kernel.h>
58: #include <sys/errno.h>
59: #include <sys/ioctl.h>
60: #include <sys/device.h>
61: #include <sys/buf.h>
62: #include <sys/proc.h>
63: #include <sys/user.h>
64: #include <sys/queue.h>
65:
66: #include <machine/bus.h>
67: #include <machine/intr.h>
68:
69: #include <scsi/scsi_all.h>
70: #include <scsi/scsi_message.h>
71: #include <scsi/scsiconf.h>
72:
73: #include <dev/isa/isavar.h>
74:
75: #include <dev/ic/aic6360reg.h>
76: #include <dev/ic/aic6360var.h>
77:
78: int aic_isa_probe(struct device *, void *, void *);
79: void aic_isa_attach(struct device *, struct device *, void *);
80:
81: struct cfattach aic_isa_ca = {
82: sizeof(struct aic_softc), aic_isa_probe, aic_isa_attach
83: };
84:
85: /*
86: * INITIALIZATION ROUTINES (probe, attach ++)
87: */
88:
89: /*
90: * aicprobe: probe for AIC6360 SCSI-controller
91: * returns non-zero value if a controller is found.
92: */
93: int
94: aic_isa_probe(parent, match, aux)
95: struct device *parent;
96: void *match, *aux;
97: {
98: struct isa_attach_args *ia = aux;
99: bus_space_tag_t iot = ia->ia_iot;
100: bus_space_handle_t ioh;
101: int rv;
102:
103: if (bus_space_map(iot, ia->ia_iobase, AIC_NPORTS, 0, &ioh))
104: return (0);
105:
106: AIC_TRACE(("aic: probing for aic-chip at port 0x%x\n", ia->ia_iobase));
107: rv = aic_find(iot, ioh);
108:
109: bus_space_unmap(iot, ioh, AIC_NPORTS);
110:
111: if (rv) {
112: ia->ia_msize = 0;
113: ia->ia_iosize = AIC_NPORTS;
114: }
115: return (rv);
116: }
117:
118: /*
119: * Attach the AIC6360, fill out some high and low level data structures
120: */
121: void
122: aic_isa_attach(parent, self, aux)
123: struct device *parent, *self;
124: void *aux;
125: {
126: struct isa_attach_args *ia = aux;
127: bus_space_tag_t iot = ia->ia_iot;
128: bus_space_handle_t ioh;
129: struct aic_softc *sc = (void *)self;
130:
131: if (bus_space_map(iot, ia->ia_iobase, AIC_NPORTS, 0, &ioh))
132: panic("%s: could not map I/O-ports", sc->sc_dev.dv_xname);
133:
134: sc->sc_iot = iot;
135: sc->sc_ioh = ioh;
136:
137: printf("\n");
138:
139: sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
140: IPL_BIO, aicintr, sc, sc->sc_dev.dv_xname);
141:
142: aicattach(sc);
143: }
144:
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