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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 | |
33 | struct 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 | struct rw_semaphore shutdown_rwsem; |
41 | unsigned int shutdown:1; |
42 | unsigned int probing:1; |
43 | unsigned int autosuspended:1; |
44 | unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */ |
45 | |
46 | int num_interfaces; |
47 | int num_suspended_intf; |
48 | |
49 | struct list_head pcm_list; /* list of pcm streams */ |
50 | struct list_head ep_list; /* list of audio-related endpoints */ |
51 | int pcm_devs; |
52 | |
53 | struct list_head midi_list; /* list of midi interfaces */ |
54 | |
55 | struct list_head mixer_list; /* list of mixer interfaces */ |
56 | |
57 | int setup; /* from the 'device_setup' module param */ |
58 | bool autoclock; /* from the 'autoclock' module param */ |
59 | |
60 | struct usb_host_interface *ctrl_intf; /* the audio control interface */ |
61 | }; |
62 | |
63 | /* |
64 | * Information about devices with broken descriptors |
65 | */ |
66 | |
67 | /* special values for .ifnum */ |
68 | #define QUIRK_NO_INTERFACE -2 |
69 | #define QUIRK_ANY_INTERFACE -1 |
70 | |
71 | enum quirk_type { |
72 | QUIRK_IGNORE_INTERFACE, |
73 | QUIRK_COMPOSITE, |
74 | QUIRK_AUTODETECT, |
75 | QUIRK_MIDI_STANDARD_INTERFACE, |
76 | QUIRK_MIDI_FIXED_ENDPOINT, |
77 | QUIRK_MIDI_YAMAHA, |
78 | QUIRK_MIDI_ROLAND, |
79 | QUIRK_MIDI_MIDIMAN, |
80 | QUIRK_MIDI_NOVATION, |
81 | QUIRK_MIDI_RAW_BYTES, |
82 | QUIRK_MIDI_EMAGIC, |
83 | QUIRK_MIDI_CME, |
84 | QUIRK_MIDI_AKAI, |
85 | QUIRK_MIDI_US122L, |
86 | QUIRK_MIDI_FTDI, |
87 | QUIRK_AUDIO_STANDARD_INTERFACE, |
88 | QUIRK_AUDIO_FIXED_ENDPOINT, |
89 | QUIRK_AUDIO_EDIROL_UAXX, |
90 | QUIRK_AUDIO_ALIGN_TRANSFER, |
91 | QUIRK_AUDIO_STANDARD_MIXER, |
92 | |
93 | QUIRK_TYPE_COUNT |
94 | }; |
95 | |
96 | struct snd_usb_audio_quirk { |
97 | const char *vendor_name; |
98 | const char *product_name; |
99 | int16_t ifnum; |
100 | uint16_t type; |
101 | const void *data; |
102 | }; |
103 | |
104 | #define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8)) |
105 | #define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) |
106 | #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) |
107 | |
108 | #endif /* __USBAUDIO_H */ |
109 |
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