1/* $NetBSD: auvitek_audio.c,v 1.6 2022/03/13 12:49:36 riastradh 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 1.6 2022/03/13 12:49:36 riastradh 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
54static int	auvitek_ifprint(void *, const char *);
55
56int
57auvitek_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	for (i = 0; i < nifaces; i++) {
68		ifaces[i] = &udev->ud_ifaces[i];
69	}
70
71	uiaa.uiaa_device = udev;
72	uiaa.uiaa_port = sc->sc_uport;
73	uiaa.uiaa_vendor = UGETW(dd->idVendor);
74	uiaa.uiaa_product = UGETW(dd->idProduct);
75	uiaa.uiaa_release = UGETW(dd->bcdDevice);
76	uiaa.uiaa_configno = udev->ud_cdesc->bConfigurationValue;
77	uiaa.uiaa_ifaces = ifaces;
78	uiaa.uiaa_nifaces = nifaces;
79	ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port;
80	ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor;
81	ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product;
82	ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release;
83	ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno;
84
85	for (i = 0; i < nifaces; i++) {
86		if (!ifaces[i])
87			continue;
88		uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass;
89		uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass;
90		if (uiaa.uiaa_class != UICLASS_AUDIO)
91			continue;
92		if (uiaa.uiaa_subclass != UISUBCLASS_AUDIOCONTROL)
93			continue;
94		uiaa.uiaa_iface = ifaces[i];
95		uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol;
96		uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber;
97		ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno;
98		sc->sc_audiodev =
99		    config_found(sc->sc_dev, &uiaa, auvitek_ifprint,
100				 CFARGS(.submatch = config_stdsubmatch,
101					.iattr = "usbifif",
102					.locators = ilocs));
103		if (sc->sc_audiodev)
104			break;
105	}
106
107	kmem_free(ifaces, nifaces * sizeof(*ifaces));
108
109	return 0;
110}
111
112int
113auvitek_audio_detach(struct auvitek_softc *sc, int flags)
114{
115
116	return 0;
117}
118
119void
120auvitek_audio_childdet(struct auvitek_softc *sc, device_t child)
121{
122	if (sc->sc_audiodev == child)
123		sc->sc_audiodev = NULL;
124}
125
126static int
127auvitek_ifprint(void *opaque, const char *pnp)
128{
129	struct usbif_attach_arg *uiaa = opaque;
130
131	if (pnp)
132		return QUIET;
133
134	aprint_normal(" port %d", uiaa->uiaa_port);
135	aprint_normal(" configuration %d", uiaa->uiaa_configno);
136	aprint_normal(" interface %d", uiaa->uiaa_ifaceno);
137
138	return UNCONF;
139}
140