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sound/usb/usbaudio.h
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#ifndef __USBAUDIO_H #define __USBAUDIO_H /* * (Tentative) USB Audio Driver for ALSA * * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ |
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/* handling of USB vendor/product ID pairs as 32-bit numbers */ #define USB_ID(vendor, product) (((vendor) << 16) | (product)) #define USB_ID_VENDOR(id) ((id) >> 16) #define USB_ID_PRODUCT(id) ((u16)(id)) |
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/* |
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* |
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*/ |
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struct snd_usb_audio { int index; struct usb_device *dev; |
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struct snd_card *card; |
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struct usb_interface *pm_intf; |
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u32 usb_id; |
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struct mutex shutdown_mutex; |
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unsigned int shutdown:1; unsigned int probing:1; unsigned int autosuspended:1; |
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unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */ |
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int num_interfaces; |
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int num_suspended_intf; |
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struct list_head pcm_list; /* list of pcm streams */ int pcm_devs; struct list_head midi_list; /* list of midi interfaces */ |
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struct list_head mixer_list; /* list of mixer interfaces */ |
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int setup; /* from the 'device_setup' module param */ int nrpacks; /* from the 'nrpacks' module param */ int async_unlink; /* from the 'async_unlink' module param */ |
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struct usb_host_interface *ctrl_intf; /* the audio control interface */ |
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}; /* * Information about devices with broken descriptors */ /* special values for .ifnum */ #define QUIRK_NO_INTERFACE -2 #define QUIRK_ANY_INTERFACE -1 |
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enum quirk_type { QUIRK_IGNORE_INTERFACE, QUIRK_COMPOSITE, QUIRK_MIDI_STANDARD_INTERFACE, QUIRK_MIDI_FIXED_ENDPOINT, QUIRK_MIDI_YAMAHA, QUIRK_MIDI_MIDIMAN, QUIRK_MIDI_NOVATION, |
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QUIRK_MIDI_RAW_BYTES, |
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QUIRK_MIDI_EMAGIC, |
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QUIRK_MIDI_CME, |
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QUIRK_MIDI_AKAI, |
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QUIRK_MIDI_US122L, |
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QUIRK_MIDI_FTDI, |
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QUIRK_AUDIO_STANDARD_INTERFACE, QUIRK_AUDIO_FIXED_ENDPOINT, |
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QUIRK_AUDIO_EDIROL_UAXX, |
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QUIRK_AUDIO_ALIGN_TRANSFER, |
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QUIRK_AUDIO_STANDARD_MIXER, |
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QUIRK_TYPE_COUNT }; |
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struct snd_usb_audio_quirk { const char *vendor_name; const char *product_name; int16_t ifnum; |
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uint16_t type; |
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const void *data; }; |
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#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8)) |
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#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) |
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#endif /* __USBAUDIO_H */ |