| #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 |
| */ |
| |
| |
| /* |
| */ |
| |
| #define USB_SUBCLASS_AUDIO_CONTROL 0x01 |
| #define USB_SUBCLASS_AUDIO_STREAMING 0x02 |
| #define USB_SUBCLASS_MIDI_STREAMING 0x03 |
| #define USB_SUBCLASS_VENDOR_SPEC 0xff |
| |
| #define CS_AUDIO_UNDEFINED 0x20 |
| #define CS_AUDIO_DEVICE 0x21 |
| #define CS_AUDIO_CONFIGURATION 0x22 |
| #define CS_AUDIO_STRING 0x23 |
| #define CS_AUDIO_INTERFACE 0x24 |
| #define CS_AUDIO_ENDPOINT 0x25 |
| |
| #define HEADER 0x01 |
| #define INPUT_TERMINAL 0x02 |
| #define OUTPUT_TERMINAL 0x03 |
| #define MIXER_UNIT 0x04 |
| #define SELECTOR_UNIT 0x05 |
| #define FEATURE_UNIT 0x06 |
| #define PROCESSING_UNIT 0x07 |
| #define EXTENSION_UNIT 0x08 |
| |
| #define AS_GENERAL 0x01 |
| #define FORMAT_TYPE 0x02 |
| #define FORMAT_SPECIFIC 0x03 |
| |
| #define EP_GENERAL 0x01 |
| |
| #define MS_GENERAL 0x01 |
| #define MIDI_IN_JACK 0x02 |
| #define MIDI_OUT_JACK 0x03 |
| |
| /* endpoint attributes */ |
| #define EP_ATTR_MASK 0x0c |
| #define EP_ATTR_ASYNC 0x04 |
| #define EP_ATTR_ADAPTIVE 0x08 |
| #define EP_ATTR_SYNC 0x0c |
| |
| /* cs endpoint attributes */ |
| #define EP_CS_ATTR_SAMPLE_RATE 0x01 |
| #define EP_CS_ATTR_PITCH_CONTROL 0x02 |
| #define EP_CS_ATTR_FILL_MAX 0x80 |
| |
| /* Audio Class specific Request Codes */ |
| |
| #define SET_CUR 0x01 |
| #define GET_CUR 0x81 |
| #define SET_MIN 0x02 |
| #define GET_MIN 0x82 |
| #define SET_MAX 0x03 |
| #define GET_MAX 0x83 |
| #define SET_RES 0x04 |
| #define GET_RES 0x84 |
| #define SET_MEM 0x05 |
| #define GET_MEM 0x85 |
| #define GET_STAT 0xff |
| |
| /* Terminal Control Selectors */ |
| |
| #define COPY_PROTECT_CONTROL 0x01 |
| |
| /* Endpoint Control Selectors */ |
| |
| #define SAMPLING_FREQ_CONTROL 0x01 |
| #define PITCH_CONTROL 0x02 |
| |
| /* Format Types */ |
| #define USB_FORMAT_TYPE_I 0x01 |
| #define USB_FORMAT_TYPE_II 0x02 |
| #define USB_FORMAT_TYPE_III 0x03 |
| |
| /* type I */ |
| #define USB_AUDIO_FORMAT_PCM 0x01 |
| #define USB_AUDIO_FORMAT_PCM8 0x02 |
| #define USB_AUDIO_FORMAT_IEEE_FLOAT 0x03 |
| #define USB_AUDIO_FORMAT_ALAW 0x04 |
| #define USB_AUDIO_FORMAT_MU_LAW 0x05 |
| |
| /* type II */ |
| #define USB_AUDIO_FORMAT_MPEG 0x1001 |
| #define USB_AUDIO_FORMAT_AC3 0x1002 |
| |
| /* type III */ |
| #define USB_AUDIO_FORMAT_IEC1937_AC3 0x2001 |
| #define USB_AUDIO_FORMAT_IEC1937_MPEG1_LAYER1 0x2002 |
| #define USB_AUDIO_FORMAT_IEC1937_MPEG2_NOEXT 0x2003 |
| #define USB_AUDIO_FORMAT_IEC1937_MPEG2_EXT 0x2004 |
| #define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER1_LS 0x2005 |
| #define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER23_LS 0x2006 |
| |
| |
| /* maximum number of endpoints per interface */ |
| #define MIDI_MAX_ENDPOINTS 2 |
| |
| /* 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)) |
| |
| /* |
| */ |
| |
| typedef struct snd_usb_audio snd_usb_audio_t; |
| |
| struct snd_usb_audio { |
| int index; |
| struct usb_device *dev; |
| snd_card_t *card; |
| u32 usb_id; |
| int shutdown; |
| int num_interfaces; |
| |
| struct list_head pcm_list; /* list of pcm streams */ |
| int pcm_devs; |
| |
| struct list_head midi_list; /* list of midi interfaces */ |
| int next_midi_device; |
| |
| struct list_head mixer_list; /* list of mixer interfaces */ |
| }; |
| |
| /* |
| * Information about devices with broken descriptors |
| */ |
| |
| /* special values for .ifnum */ |
| #define QUIRK_NO_INTERFACE -2 |
| #define QUIRK_ANY_INTERFACE -1 |
| |
| /* quirk type */ |
| #define QUIRK_MIDI_FIXED_ENDPOINT 0 |
| #define QUIRK_MIDI_YAMAHA 1 |
| #define QUIRK_MIDI_MIDIMAN 2 |
| #define QUIRK_COMPOSITE 3 |
| #define QUIRK_AUDIO_FIXED_ENDPOINT 4 |
| #define QUIRK_AUDIO_STANDARD_INTERFACE 5 |
| #define QUIRK_MIDI_STANDARD_INTERFACE 6 |
| #define QUIRK_AUDIO_EDIROL_UA700_UA25 7 |
| #define QUIRK_AUDIO_EDIROL_UA1000 8 |
| #define QUIRK_IGNORE_INTERFACE 9 |
| #define QUIRK_MIDI_NOVATION 10 |
| #define QUIRK_MIDI_MOTU 11 |
| #define QUIRK_MIDI_EMAGIC 12 |
| |
| typedef struct snd_usb_audio_quirk snd_usb_audio_quirk_t; |
| typedef struct snd_usb_midi_endpoint_info snd_usb_midi_endpoint_info_t; |
| |
| struct snd_usb_audio_quirk { |
| const char *vendor_name; |
| const char *product_name; |
| int16_t ifnum; |
| int16_t type; |
| const void *data; |
| }; |
| |
| /* data for QUIRK_MIDI_FIXED_ENDPOINT */ |
| struct snd_usb_midi_endpoint_info { |
| int8_t out_ep; /* ep number, 0 autodetect */ |
| uint8_t out_interval; /* interval for interrupt endpoints */ |
| int8_t in_ep; |
| uint8_t in_interval; |
| uint16_t out_cables; /* bitmask */ |
| uint16_t in_cables; /* bitmask */ |
| }; |
| |
| /* for QUIRK_MIDI_YAMAHA, data is NULL */ |
| |
| /* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info |
| * structure (out_cables and in_cables only) */ |
| |
| /* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk |
| * structures, terminated with .ifnum = -1 */ |
| |
| /* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */ |
| |
| /* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */ |
| |
| /* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */ |
| |
| /* for QUIRK_IGNORE_INTERFACE, data is NULL */ |
| |
| /* for QUIRK_MIDI_NOVATION and _MOTU, data is NULL */ |
| |
| /* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info |
| * structure (out_cables and in_cables only) */ |
| |
| /* |
| */ |
| |
| #define combine_word(s) ((*s) | ((unsigned int)(s)[1] << 8)) |
| #define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) |
| #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) |
| |
| unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size); |
| |
| void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype); |
| void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype); |
| |
| int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout); |
| |
| int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif); |
| void snd_usb_mixer_disconnect(struct list_head *p); |
| |
| int snd_usb_create_midi_interface(snd_usb_audio_t *chip, struct usb_interface *iface, const snd_usb_audio_quirk_t *quirk); |
| void snd_usbmidi_input_stop(struct list_head* p); |
| void snd_usbmidi_input_start(struct list_head* p); |
| void snd_usbmidi_disconnect(struct list_head *p); |
| |
| /* |
| * retrieve usb_interface descriptor from the host interface |
| * (conditional for compatibility with the older API) |
| */ |
| #ifndef get_iface_desc |
| #define get_iface_desc(iface) (&(iface)->desc) |
| #define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc) |
| #define get_ep_desc(ep) (&(ep)->desc) |
| #define get_cfg_desc(cfg) (&(cfg)->desc) |
| #endif |
| |
| #ifndef usb_pipe_needs_resubmit |
| #define usb_pipe_needs_resubmit(pipe) 1 |
| #endif |
| |
| #ifndef snd_usb_complete_callback |
| #define snd_usb_complete_callback(x) (x) |
| #endif |
| |
| #ifndef snd_usb_get_speed |
| #define snd_usb_get_speed(dev) ((dev)->speed) |
| #endif |
| |
| #endif /* __USBAUDIO_H */ |
