1 /* $NetBSD: mpu_isapnp.c,v 1.21 2019/05/08 13:40:18 isaki Exp $ */
2
3 #include <sys/cdefs.h>
4 __KERNEL_RCSID(0, "$NetBSD: mpu_isapnp.c,v 1.21 2019/05/08 13:40:18 isaki Exp $");
5
6 #include "midi.h"
7
8 #include <sys/param.h>
9 #include <sys/systm.h>
10 #include <sys/errno.h>
11 #include <sys/ioctl.h>
12 #include <sys/syslog.h>
13 #include <sys/device.h>
14 #include <sys/proc.h>
15 #include <sys/bus.h>
16 #include <sys/audioio.h>
17
18 #include <dev/audio/audio_if.h>
19 #include <dev/midi_if.h>
20
21 #include <dev/isa/isavar.h>
22 #include <dev/isa/isadmavar.h>
23
24 #include <dev/isapnp/isapnpreg.h>
25 #include <dev/isapnp/isapnpvar.h>
26 #include <dev/isapnp/isapnpdevs.h>
27
28 #include <dev/ic/mpuvar.h>
29
30 static int mpu_isapnp_match(device_t, cfdata_t, void *);
31 static void mpu_isapnp_attach(device_t, device_t, void *);
32
33 struct mpu_isapnp_softc {
34 void *sc_ih;
35 kmutex_t sc_lock;
36
37 struct mpu_softc sc_mpu;
38 };
39
40 CFATTACH_DECL_NEW(mpu_isapnp, sizeof(struct mpu_isapnp_softc),
41 mpu_isapnp_match, mpu_isapnp_attach, NULL, NULL);
42
43 static int
mpu_isapnp_match(device_t parent,cfdata_t match,void * aux)44 mpu_isapnp_match(device_t parent, cfdata_t match, void *aux)
45 {
46 int pri, variant;
47
48 pri = isapnp_devmatch(aux, &isapnp_mpu_devinfo, &variant);
49 if (pri && variant > 0)
50 pri = 0;
51 return pri;
52 }
53
54 static void
mpu_isapnp_attach(device_t parent,device_t self,void * aux)55 mpu_isapnp_attach(device_t parent, device_t self, void *aux)
56 {
57 struct mpu_isapnp_softc *sc = device_private(self);
58 struct isapnp_attach_args *ipa = aux;
59
60 aprint_normal("\n");
61
62 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
63 aprint_error_dev(self, "error in region allocation\n");
64 return;
65 }
66
67 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_AUDIO);
68
69 sc->sc_mpu.iot = ipa->ipa_iot;
70 sc->sc_mpu.ioh = ipa->ipa_io[0].h;
71 sc->sc_mpu.lock = &sc->sc_lock;
72
73 mutex_enter(&sc->sc_lock);
74
75 if (!mpu_find(&sc->sc_mpu)) {
76 aprint_error_dev(self, "find failed\n");
77 mutex_exit(&sc->sc_lock);
78 mutex_destroy(&sc->sc_lock);
79 return;
80 }
81
82 mutex_exit(&sc->sc_lock);
83
84 aprint_normal_dev(self, "%s %s\n", ipa->ipa_devident,
85 ipa->ipa_devclass);
86
87 sc->sc_mpu.model = "Roland MPU-401 MIDI UART";
88
89 midi_attach_mi(&mpu_midi_hw_if, &sc->sc_mpu, self);
90
91 sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
92 ipa->ipa_irq[0].type, IPL_AUDIO, mpu_intr, &sc->sc_mpu);
93 }
94