Annotation of sys/arch/mvme68k/dev/vsdma.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: vsdma.c,v 1.12 2006/11/28 23:59:45 dlg Exp $ */
2: /*
3: * Copyright (c) 1999 Steve Murphree, Jr.
4: * All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: * 3. All advertising materials mentioning features or use of this software
15: * must display the following acknowledgement:
16: * This product includes software developed by the University of
17: * California, Berkeley and its contributors.
18: * 4. Neither the name of the University nor the names of its contributors
19: * may be used to endorse or promote products derived from this software
20: * without specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: *
34: * @(#)vsdma.c
35: */
36:
37: /*
38: * MVME328 scsi adaptor driver
39: */
40:
41: #include <sys/param.h>
42: #include <sys/systm.h>
43: #include <sys/kernel.h>
44: #include <sys/device.h>
45:
46: #include <scsi/scsi_all.h>
47: #include <scsi/scsiconf.h>
48:
49: #include <machine/autoconf.h>
50:
51: #include <mvme68k/dev/vsreg.h>
52: #include <mvme68k/dev/vsvar.h>
53: #include <mvme68k/dev/vme.h>
54:
55: int vsmatch(struct device *, void *, void *);
56: void vsattach(struct device *, struct device *, void *);
57: int vsprint(void *auxp, char *);
58: void vs_initialize(struct vs_softc *);
59: int vs_intr(struct vs_softc *);
60: int vs_nintr(void *);
61: int vs_eintr(void *);
62:
63: struct scsi_adapter vs_scsiswitch = {
64: vs_scsicmd,
65: vs_minphys,
66: 0, /* no lun support */
67: 0, /* no lun support */
68: };
69:
70: struct scsi_device vs_scsidev = {
71: NULL, /* use default error handler */
72: NULL, /* do not have a start function */
73: NULL, /* have no async handler */
74: NULL, /* Use default done routine */
75: };
76:
77: struct cfattach vs_ca = {
78: sizeof(struct vs_softc), vsmatch, vsattach,
79: };
80:
81: struct cfdriver vs_cd = {
82: NULL, "vs", DV_DULL
83: };
84:
85: int
86: vsmatch(pdp, vcf, args)
87: struct device *pdp;
88: void *vcf, *args;
89: {
90: struct confargs *ca = args;
91: return(!badvaddr((vaddr_t)ca->ca_vaddr, 1));
92: }
93:
94: void
95: vsattach(parent, self, auxp)
96: struct device *parent, *self;
97: void *auxp;
98: {
99: struct vs_softc *sc = (struct vs_softc *)self;
100: struct confargs *ca = auxp;
101: struct scsibus_attach_args saa;
102: struct vsreg * rp;
103: int tmp;
104:
105: sc->sc_vsreg = rp = (void *)ca->ca_vaddr;
106:
107: sc->sc_ipl = ca->ca_ipl;
108: sc->sc_nvec = ca->ca_vec + 0;
109: sc->sc_evec = ca->ca_vec + 1;
110: sc->sc_link.adapter_softc = sc;
111: sc->sc_link.adapter_target = 7;
112: sc->sc_link.adapter = &vs_scsiswitch;
113: sc->sc_link.device = &vs_scsidev;
114: sc->sc_link.luns = 1;
115: sc->sc_link.openings = 1;
116:
117: sc->sc_ih_n.ih_fn = vs_nintr;
118: sc->sc_ih_n.ih_arg = sc;
119: sc->sc_ih_n.ih_ipl = ca->ca_ipl;
120:
121: sc->sc_ih_e.ih_fn = vs_eintr;
122: sc->sc_ih_e.ih_arg = sc;
123: sc->sc_ih_e.ih_ipl = ca->ca_ipl;
124:
125: vs_initialize(sc);
126:
127: snprintf(sc->sc_intrname_e, sizeof sc->sc_intrname_e,
128: "%s_err", self->dv_xname);
129:
130: vmeintr_establish(sc->sc_nvec, &sc->sc_ih_n, self->dv_xname);
131: vmeintr_establish(sc->sc_evec, &sc->sc_ih_e, sc->sc_intrname_e);
132:
133: /*
134: * attach all scsi units on us, watching for boot device
135: * (see device_register).
136: */
137: bzero(&saa, sizeof(saa));
138: saa.saa_sc_link = &sc->sc_link;
139: tmp = bootpart;
140: if (ca->ca_paddr != bootaddr)
141: bootpart = -1; /* invalid flag to device_register */
142: config_found(self, &saa, scsiprint);
143: bootpart = tmp; /* restore old value */
144: }
145:
146: /*
147: * print diag if pnp is NULL else just extra
148: */
149: int
150: vsprint(auxp, pnp)
151: void *auxp;
152: char *pnp;
153: {
154: if (pnp == NULL)
155: return (UNCONF);
156: return (QUIET);
157: }
158:
159: /* normal interrupt function */
160: int
161: vs_nintr(arg)
162: void *arg;
163: {
164: struct vs_softc *sc = (struct vs_softc *)arg;
165:
166: #ifdef SDEBUG
167: printf("Normal Interrupt!!!\n");
168: #endif
169: vs_intr(sc);
170: return (1);
171: }
172:
173: /* error interrupt function */
174: int
175: vs_eintr(arg)
176: void *arg;
177: {
178: struct vs_softc *sc = (struct vs_softc *)arg;
179:
180: #ifdef SDEBUG
181: printf("Error Interrupt!!!\n");
182: #endif
183: vs_intr(sc);
184: return (1);
185: }
186:
187:
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