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 media_device; 34 struct media_intf_devnode; 35 36 struct snd_usb_audio { 37 int index; 38 struct usb_device *dev; 39 struct snd_card *card; 40 struct usb_interface *pm_intf; 41 u32 usb_id; 42 struct mutex mutex; 43 unsigned int autosuspended:1; 44 atomic_t active; 45 atomic_t shutdown; 46 atomic_t usage_count; 47 wait_queue_head_t shutdown_wait; 48 unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */ 49 unsigned int tx_length_quirk:1; /* Put length specifier in transfers */ 50 51 int num_interfaces; 52 int num_suspended_intf; 53 int sample_rate_read_error; 54 55 int badd_profile; /* UAC3 BADD profile */ 56 57 struct list_head pcm_list; /* list of pcm streams */ 58 struct list_head ep_list; /* list of audio-related endpoints */ 59 int pcm_devs; 60 61 struct list_head midi_list; /* list of midi interfaces */ 62 63 struct list_head mixer_list; /* list of mixer interfaces */ 64 65 int setup; /* from the 'device_setup' module param */ 66 bool autoclock; /* from the 'autoclock' module param */ 67 bool keep_iface; /* keep interface/altset after closing 68 * or parameter change 69 */ 70 71 struct usb_host_interface *ctrl_intf; /* the audio control interface */ 72 struct media_device *media_dev; 73 struct media_intf_devnode *ctl_intf_media_devnode; 74 }; 75 76 #define usb_audio_err(chip, fmt, args...) \ 77 dev_err(&(chip)->dev->dev, fmt, ##args) 78 #define usb_audio_warn(chip, fmt, args...) \ 79 dev_warn(&(chip)->dev->dev, fmt, ##args) 80 #define usb_audio_info(chip, fmt, args...) \ 81 dev_info(&(chip)->dev->dev, fmt, ##args) 82 #define usb_audio_dbg(chip, fmt, args...) \ 83 dev_dbg(&(chip)->dev->dev, fmt, ##args) 84 85 /* 86 * Information about devices with broken descriptors 87 */ 88 89 /* special values for .ifnum */ 90 #define QUIRK_NO_INTERFACE -2 91 #define QUIRK_ANY_INTERFACE -1 92 93 enum quirk_type { 94 QUIRK_IGNORE_INTERFACE, 95 QUIRK_COMPOSITE, 96 QUIRK_AUTODETECT, 97 QUIRK_MIDI_STANDARD_INTERFACE, 98 QUIRK_MIDI_FIXED_ENDPOINT, 99 QUIRK_MIDI_YAMAHA, 100 QUIRK_MIDI_ROLAND, 101 QUIRK_MIDI_MIDIMAN, 102 QUIRK_MIDI_NOVATION, 103 QUIRK_MIDI_RAW_BYTES, 104 QUIRK_MIDI_EMAGIC, 105 QUIRK_MIDI_CME, 106 QUIRK_MIDI_AKAI, 107 QUIRK_MIDI_US122L, 108 QUIRK_MIDI_FTDI, 109 QUIRK_MIDI_CH345, 110 QUIRK_AUDIO_STANDARD_INTERFACE, 111 QUIRK_AUDIO_FIXED_ENDPOINT, 112 QUIRK_AUDIO_EDIROL_UAXX, 113 QUIRK_AUDIO_ALIGN_TRANSFER, 114 QUIRK_AUDIO_STANDARD_MIXER, 115 116 QUIRK_TYPE_COUNT 117 }; 118 119 struct snd_usb_audio_quirk { 120 const char *vendor_name; 121 const char *product_name; 122 const char *profile_name; /* override the card->longname */ 123 int16_t ifnum; 124 uint16_t type; 125 bool shares_media_device; 126 const void *data; 127 }; 128 129 #define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8)) 130 #define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) 131 #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) 132 133 int snd_usb_lock_shutdown(struct snd_usb_audio *chip); 134 void snd_usb_unlock_shutdown(struct snd_usb_audio *chip); 135 136 extern bool snd_usb_use_vmalloc; 137 138 #endif /* __USBAUDIO_H */ 139