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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 mutex;
40 unsigned int autosuspended:1;
41 atomic_t active;
42 atomic_t shutdown;
43 atomic_t usage_count;
44 wait_queue_head_t shutdown_wait;
45 unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
46 unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
47
48 int num_interfaces;
49 int num_suspended_intf;
50 int sample_rate_read_error;
51
52 struct list_head pcm_list; /* list of pcm streams */
53 struct list_head ep_list; /* list of audio-related endpoints */
54 int pcm_devs;
55
56 struct list_head midi_list; /* list of midi interfaces */
57
58 struct list_head mixer_list; /* list of mixer interfaces */
59
60 int setup; /* from the 'device_setup' module param */
61 bool autoclock; /* from the 'autoclock' module param */
62
63 struct usb_host_interface *ctrl_intf; /* the audio control interface */
64};
65
66#define usb_audio_err(chip, fmt, args...) \
67 dev_err(&(chip)->dev->dev, fmt, ##args)
68#define usb_audio_warn(chip, fmt, args...) \
69 dev_warn(&(chip)->dev->dev, fmt, ##args)
70#define usb_audio_info(chip, fmt, args...) \
71 dev_info(&(chip)->dev->dev, fmt, ##args)
72#define usb_audio_dbg(chip, fmt, args...) \
73 dev_dbg(&(chip)->dev->dev, fmt, ##args)
74
75/*
76 * Information about devices with broken descriptors
77 */
78
79/* special values for .ifnum */
80#define QUIRK_NO_INTERFACE -2
81#define QUIRK_ANY_INTERFACE -1
82
83enum quirk_type {
84 QUIRK_IGNORE_INTERFACE,
85 QUIRK_COMPOSITE,
86 QUIRK_AUTODETECT,
87 QUIRK_MIDI_STANDARD_INTERFACE,
88 QUIRK_MIDI_FIXED_ENDPOINT,
89 QUIRK_MIDI_YAMAHA,
90 QUIRK_MIDI_ROLAND,
91 QUIRK_MIDI_MIDIMAN,
92 QUIRK_MIDI_NOVATION,
93 QUIRK_MIDI_RAW_BYTES,
94 QUIRK_MIDI_EMAGIC,
95 QUIRK_MIDI_CME,
96 QUIRK_MIDI_AKAI,
97 QUIRK_MIDI_US122L,
98 QUIRK_MIDI_FTDI,
99 QUIRK_MIDI_CH345,
100 QUIRK_AUDIO_STANDARD_INTERFACE,
101 QUIRK_AUDIO_FIXED_ENDPOINT,
102 QUIRK_AUDIO_EDIROL_UAXX,
103 QUIRK_AUDIO_ALIGN_TRANSFER,
104 QUIRK_AUDIO_STANDARD_MIXER,
105
106 QUIRK_TYPE_COUNT
107};
108
109struct snd_usb_audio_quirk {
110 const char *vendor_name;
111 const char *product_name;
112 int16_t ifnum;
113 uint16_t type;
114 const void *data;
115};
116
117#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
118#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
119#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
120
121int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
122void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
123
124#endif /* __USBAUDIO_H */
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 mutex;
40 unsigned int autosuspended:1;
41 atomic_t active;
42 atomic_t shutdown;
43 atomic_t usage_count;
44 wait_queue_head_t shutdown_wait;
45 unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
46 unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
47
48 int num_interfaces;
49 int num_suspended_intf;
50
51 struct list_head pcm_list; /* list of pcm streams */
52 struct list_head ep_list; /* list of audio-related endpoints */
53 int pcm_devs;
54
55 struct list_head midi_list; /* list of midi interfaces */
56
57 struct list_head mixer_list; /* list of mixer interfaces */
58
59 int setup; /* from the 'device_setup' module param */
60 bool autoclock; /* from the 'autoclock' module param */
61
62 struct usb_host_interface *ctrl_intf; /* the audio control interface */
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
105 QUIRK_TYPE_COUNT
106};
107
108struct snd_usb_audio_quirk {
109 const char *vendor_name;
110 const char *product_name;
111 int16_t ifnum;
112 uint16_t type;
113 const void *data;
114};
115
116#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
117#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
118#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
119
120int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
121void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
122
123#endif /* __USBAUDIO_H */