1 /* $NetBSD: auvitek_audio.c,v 1.2 2016/04/23 10:15:31 skrll Exp $ */
2
3 /*-
4 * Copyright (c) 2010 Jared D. McNeill <jmcneill@invisible.ca>
5 * 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /*
30 * Auvitek AU0828 USB controller - audio support
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: auvitek_audio.c,v 1.2 2016/04/23 10:15:31 skrll Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/device.h>
39 #include <sys/conf.h>
40 #include <sys/bus.h>
41 #include <sys/kmem.h>
42
43 #include <dev/usb/usb.h>
44 #include <dev/usb/usbdi.h>
45 #include <dev/usb/usbdivar.h>
46 #include <dev/usb/usbdi_util.h>
47 #include <dev/usb/usbdevs.h>
48
49 #include <dev/usb/auvitekreg.h>
50 #include <dev/usb/auvitekvar.h>
51
52 #include "locators.h"
53
54 static int auvitek_ifprint(void *, const char *);
55
56 int
auvitek_audio_attach(struct auvitek_softc * sc)57 auvitek_audio_attach(struct auvitek_softc *sc)
58 {
59 struct usbif_attach_arg uiaa;
60 struct usbd_device *udev = sc->sc_udev;
61 usb_device_descriptor_t *dd = &udev->ud_ddesc;
62 struct usbd_interface **ifaces;
63 int ilocs[USBIFIFCF_NLOCS], nifaces, i;
64
65 nifaces = udev->ud_cdesc->bNumInterface;
66 ifaces = kmem_zalloc(nifaces * sizeof(*ifaces), KM_SLEEP);
67 if (ifaces == NULL) {
68 aprint_error_dev(sc->sc_dev, "audio attach: no memory\n");
69 return ENOMEM;
70 }
71 for (i = 0; i < nifaces; i++) {
72 ifaces[i] = &udev->ud_ifaces[i];
73 }
74
75 uiaa.uiaa_device = udev;
76 uiaa.uiaa_port = sc->sc_uport;
77 uiaa.uiaa_vendor = UGETW(dd->idVendor);
78 uiaa.uiaa_product = UGETW(dd->idProduct);
79 uiaa.uiaa_release = UGETW(dd->bcdDevice);
80 uiaa.uiaa_configno = udev->ud_cdesc->bConfigurationValue;
81 uiaa.uiaa_ifaces = ifaces;
82 uiaa.uiaa_nifaces = nifaces;
83 ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port;
84 ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor;
85 ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product;
86 ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release;
87 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno;
88
89 for (i = 0; i < nifaces; i++) {
90 if (!ifaces[i])
91 continue;
92 uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass;
93 uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass;
94 if (uiaa.uiaa_class != UICLASS_AUDIO)
95 continue;
96 if (uiaa.uiaa_subclass != UISUBCLASS_AUDIOCONTROL)
97 continue;
98 uiaa.uiaa_iface = ifaces[i];
99 uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol;
100 uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber;
101 ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno;
102 sc->sc_audiodev = config_found_sm_loc(sc->sc_dev, "usbifif",
103 ilocs, &uiaa, auvitek_ifprint, config_stdsubmatch);
104 if (sc->sc_audiodev)
105 break;
106 }
107
108 kmem_free(ifaces, nifaces * sizeof(*ifaces));
109
110 return 0;
111 }
112
113 int
auvitek_audio_detach(struct auvitek_softc * sc,int flags)114 auvitek_audio_detach(struct auvitek_softc *sc, int flags)
115 {
116 if (sc->sc_audiodev != NULL) {
117 config_detach(sc->sc_audiodev, flags);
118 sc->sc_audiodev = NULL;
119 }
120
121 return 0;
122 }
123
124 void
auvitek_audio_childdet(struct auvitek_softc * sc,device_t child)125 auvitek_audio_childdet(struct auvitek_softc *sc, device_t child)
126 {
127 if (sc->sc_audiodev == child)
128 sc->sc_audiodev = NULL;
129 }
130
131 static int
auvitek_ifprint(void * opaque,const char * pnp)132 auvitek_ifprint(void *opaque, const char *pnp)
133 {
134 struct usbif_attach_arg *uiaa = opaque;
135
136 if (pnp)
137 return QUIET;
138
139 aprint_normal(" port %d", uiaa->uiaa_port);
140 aprint_normal(" configuration %d", uiaa->uiaa_configno);
141 aprint_normal(" interface %d", uiaa->uiaa_ifaceno);
142
143 return UNCONF;
144 }
145