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1#ifndef __USBAUDIO_H
2#define __USBAUDIO_H
3/*
4 * (Tentative) USB Audio Driver for ALSA
5 *
6 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24/* handling of USB vendor/product ID pairs as 32-bit numbers */
25#define USB_ID(vendor, product) (((vendor) << 16) | (product))
26#define USB_ID_VENDOR(id) ((id) >> 16)
27#define USB_ID_PRODUCT(id) ((u16)(id))
28
29/*
30 *
31 */
32
33struct snd_usb_audio {
34 int index;
35 struct usb_device *dev;
36 struct snd_card *card;
37 struct usb_interface *pm_intf;
38 u32 usb_id;
39 struct mutex shutdown_mutex;
40 unsigned int shutdown:1;
41 unsigned int probing:1;
42 unsigned int autosuspended:1;
43 unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
44
45 int num_interfaces;
46 int num_suspended_intf;
47
48 struct list_head pcm_list; /* list of pcm streams */
49 int pcm_devs;
50
51 struct list_head midi_list; /* list of midi interfaces */
52
53 struct list_head mixer_list; /* list of mixer interfaces */
54
55 int setup; /* from the 'device_setup' module param */
56 int nrpacks; /* from the 'nrpacks' module param */
57 int async_unlink; /* from the 'async_unlink' module param */
58
59 struct usb_host_interface *ctrl_intf; /* the audio control interface */
60};
61
62/*
63 * Information about devices with broken descriptors
64 */
65
66/* special values for .ifnum */
67#define QUIRK_NO_INTERFACE -2
68#define QUIRK_ANY_INTERFACE -1
69
70enum quirk_type {
71 QUIRK_IGNORE_INTERFACE,
72 QUIRK_COMPOSITE,
73 QUIRK_MIDI_STANDARD_INTERFACE,
74 QUIRK_MIDI_FIXED_ENDPOINT,
75 QUIRK_MIDI_YAMAHA,
76 QUIRK_MIDI_MIDIMAN,
77 QUIRK_MIDI_NOVATION,
78 QUIRK_MIDI_RAW_BYTES,
79 QUIRK_MIDI_EMAGIC,
80 QUIRK_MIDI_CME,
81 QUIRK_MIDI_AKAI,
82 QUIRK_MIDI_US122L,
83 QUIRK_AUDIO_STANDARD_INTERFACE,
84 QUIRK_AUDIO_FIXED_ENDPOINT,
85 QUIRK_AUDIO_EDIROL_UAXX,
86 QUIRK_AUDIO_ALIGN_TRANSFER,
87 QUIRK_AUDIO_STANDARD_MIXER,
88
89 QUIRK_TYPE_COUNT
90};
91
92struct snd_usb_audio_quirk {
93 const char *vendor_name;
94 const char *product_name;
95 int16_t ifnum;
96 uint16_t type;
97 const void *data;
98};
99
100#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
101#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
102#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
103
104#endif /* __USBAUDIO_H */
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2#ifndef __USBAUDIO_H
3#define __USBAUDIO_H
4/*
5 * (Tentative) USB Audio Driver for ALSA
6 *
7 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
8 */
9
10/* handling of USB vendor/product ID pairs as 32-bit numbers */
11#define USB_ID(vendor, product) (((vendor) << 16) | (product))
12#define USB_ID_VENDOR(id) ((id) >> 16)
13#define USB_ID_PRODUCT(id) ((u16)(id))
14
15/*
16 *
17 */
18
19struct media_device;
20struct media_intf_devnode;
21
22#define MAX_CARD_INTERFACES 16
23
24struct snd_usb_audio {
25 int index;
26 struct usb_device *dev;
27 struct snd_card *card;
28 struct usb_interface *intf[MAX_CARD_INTERFACES];
29 u32 usb_id;
30 struct mutex mutex;
31 unsigned int system_suspend;
32 atomic_t active;
33 atomic_t shutdown;
34 atomic_t usage_count;
35 wait_queue_head_t shutdown_wait;
36 unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
37 unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
38 unsigned int setup_fmt_after_resume_quirk:1; /* setup the format to interface after resume */
39 unsigned int need_delayed_register:1; /* warn for delayed registration */
40 int num_interfaces;
41 int num_suspended_intf;
42 int sample_rate_read_error;
43
44 int badd_profile; /* UAC3 BADD profile */
45
46 struct list_head pcm_list; /* list of pcm streams */
47 struct list_head ep_list; /* list of audio-related endpoints */
48 int pcm_devs;
49
50 struct list_head midi_list; /* list of midi interfaces */
51
52 struct list_head mixer_list; /* list of mixer interfaces */
53
54 int setup; /* from the 'device_setup' module param */
55 bool autoclock; /* from the 'autoclock' module param */
56 bool keep_iface; /* keep interface/altset after closing
57 * or parameter change
58 */
59
60 struct usb_host_interface *ctrl_intf; /* the audio control interface */
61 struct media_device *media_dev;
62 struct media_intf_devnode *ctl_intf_media_devnode;
63};
64
65#define usb_audio_err(chip, fmt, args...) \
66 dev_err(&(chip)->dev->dev, fmt, ##args)
67#define usb_audio_warn(chip, fmt, args...) \
68 dev_warn(&(chip)->dev->dev, fmt, ##args)
69#define usb_audio_info(chip, fmt, args...) \
70 dev_info(&(chip)->dev->dev, fmt, ##args)
71#define usb_audio_dbg(chip, fmt, args...) \
72 dev_dbg(&(chip)->dev->dev, fmt, ##args)
73
74/*
75 * Information about devices with broken descriptors
76 */
77
78/* special values for .ifnum */
79#define QUIRK_NO_INTERFACE -2
80#define QUIRK_ANY_INTERFACE -1
81
82enum quirk_type {
83 QUIRK_IGNORE_INTERFACE,
84 QUIRK_COMPOSITE,
85 QUIRK_AUTODETECT,
86 QUIRK_MIDI_STANDARD_INTERFACE,
87 QUIRK_MIDI_FIXED_ENDPOINT,
88 QUIRK_MIDI_YAMAHA,
89 QUIRK_MIDI_ROLAND,
90 QUIRK_MIDI_MIDIMAN,
91 QUIRK_MIDI_NOVATION,
92 QUIRK_MIDI_RAW_BYTES,
93 QUIRK_MIDI_EMAGIC,
94 QUIRK_MIDI_CME,
95 QUIRK_MIDI_AKAI,
96 QUIRK_MIDI_US122L,
97 QUIRK_MIDI_FTDI,
98 QUIRK_MIDI_CH345,
99 QUIRK_AUDIO_STANDARD_INTERFACE,
100 QUIRK_AUDIO_FIXED_ENDPOINT,
101 QUIRK_AUDIO_EDIROL_UAXX,
102 QUIRK_AUDIO_ALIGN_TRANSFER,
103 QUIRK_AUDIO_STANDARD_MIXER,
104 QUIRK_SETUP_FMT_AFTER_RESUME,
105 QUIRK_SETUP_DISABLE_AUTOSUSPEND,
106
107 QUIRK_TYPE_COUNT
108};
109
110struct snd_usb_audio_quirk {
111 const char *vendor_name;
112 const char *product_name;
113 const char *profile_name; /* override the card->longname */
114 int16_t ifnum;
115 uint16_t type;
116 bool shares_media_device;
117 const void *data;
118};
119
120#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
121#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
122#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
123
124int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
125void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
126
127extern bool snd_usb_use_vmalloc;
128extern bool snd_usb_skip_validation;
129
130#endif /* __USBAUDIO_H */