Annotation of sys/dev/isa/sb_isapnp.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: sb_isapnp.c,v 1.13 2002/03/14 01:26:56 millert Exp $ */
2: /* $NetBSD: sb_isa.c,v 1.3 1997/03/20 11:03:11 mycroft Exp $ */
3:
4: /*
5: * Copyright (c) 1991-1993 Regents of the University of California.
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the Computer Systems
19: * Engineering Group at Lawrence Berkeley Laboratory.
20: * 4. Neither the name of the University nor of the Laboratory may be used
21: * to endorse or promote products derived from this software without
22: * specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: */
37:
38: #include <sys/param.h>
39: #include <sys/systm.h>
40: #include <sys/errno.h>
41: #include <sys/ioctl.h>
42: #include <sys/syslog.h>
43: #include <sys/device.h>
44: #include <sys/proc.h>
45:
46: #include <sys/audioio.h>
47: #include <dev/audio_if.h>
48: #include <dev/midi_if.h>
49: #include <dev/mulaw.h>
50:
51: #include <dev/isa/isavar.h>
52: #include <dev/isa/isadmavar.h>
53:
54: #include <dev/isa/sbreg.h>
55: #include <dev/isa/sbvar.h>
56:
57: #include <dev/isa/sbdspvar.h>
58:
59: int sb_isapnp_match(struct device *, void *, void *);
60: void sb_isapnp_attach(struct device *, struct device *, void *);
61:
62: struct cfattach sb_isapnp_ca = {
63: sizeof(struct sbdsp_softc), sb_isapnp_match, sb_isapnp_attach
64: };
65:
66: /*
67: * Probe / attach routines.
68: */
69:
70: /*
71: * Probe for the soundblaster hardware.
72: */
73: int
74: sb_isapnp_match(parent, match, aux)
75: struct device *parent;
76: void *match, *aux;
77: {
78: struct isa_attach_args *ia = aux;
79:
80: if (ia->ipa_ndrq < 1)
81: return 0;
82: return 1;
83: }
84:
85: /*
86: * Attach hardware to driver, attach hardware driver to audio
87: * pseudo-device driver.
88: */
89: void
90: sb_isapnp_attach(parent, self, aux)
91: struct device *parent, *self;
92: void *aux;
93: {
94: struct sbdsp_softc *sc = (struct sbdsp_softc *) self;
95: struct isa_attach_args *ia = aux;
96:
97: sc->sc_iot = ia->ia_iot;
98: sc->sc_ioh = ia->ipa_io[0].h;
99: sc->sc_irq = ia->ipa_irq[0].num;
100: sc->sc_iobase = ia->ipa_io[0].base;
101: sc->sc_ic = ia->ia_ic;
102: sc->sc_drq8 = ia->ipa_drq[0].num;
103:
104: if (ia->ipa_ndrq > 1 && ia->ipa_drq[0].num != ia->ipa_drq[1].num) {
105: /* Some cards have the 16 bit drq first */
106: if (sc->sc_drq8 >= 4) {
107: sc->sc_drq16 = sc->sc_drq8;
108: sc->sc_drq8 = ia->ipa_drq[1].num;
109: } else
110: sc->sc_drq16 = ia->ipa_drq[1].num;
111: } else
112: sc->sc_drq16 = DRQUNK;
113:
114: #if NMIDI > 0
115: if (ia->ipa_nio > 1) {
116: sc->sc_mpu_sc.iobase = ia->ipa_io[1].base;
117: sc->sc_mpu_sc.ioh = ia->ipa_io[1].h;
118: } else
119: sc->sc_mpu_sc.iobase = 0;
120: #endif
121:
122: if (!sbmatch(sc)) {
123: printf(": sbmatch failed\n");
124: return;
125: }
126:
127: sc->sc_isa = parent->dv_parent;
128: sbattach(sc);
129: }
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