Daniel Mentz | 94787a1 | 2013-05-29 21:12:04 -0700 | [diff] [blame] | 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 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 | |
| 70 | enum 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_MIDI_FTDI, |
| 84 | QUIRK_AUDIO_STANDARD_INTERFACE, |
| 85 | QUIRK_AUDIO_FIXED_ENDPOINT, |
| 86 | QUIRK_AUDIO_EDIROL_UAXX, |
| 87 | QUIRK_AUDIO_ALIGN_TRANSFER, |
| 88 | QUIRK_AUDIO_STANDARD_MIXER, |
| 89 | |
| 90 | QUIRK_TYPE_COUNT |
| 91 | }; |
| 92 | |
| 93 | struct snd_usb_audio_quirk { |
| 94 | const char *vendor_name; |
| 95 | const char *product_name; |
| 96 | int16_t ifnum; |
| 97 | uint16_t type; |
| 98 | const void *data; |
| 99 | }; |
| 100 | |
| 101 | #define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8)) |
| 102 | #define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) |
| 103 | #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) |
| 104 | |
| 105 | #endif /* __USBAUDIO_H */ |