84957a8ab0
USB generic driver Move all data related to audio control interfaces into a separate struct local to usbmixer.c. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
253 lines
7.0 KiB
C
253 lines
7.0 KiB
C
#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
|
|
|
|
/*
|
|
*/
|
|
|
|
typedef struct snd_usb_audio snd_usb_audio_t;
|
|
|
|
struct snd_usb_audio {
|
|
int index;
|
|
struct usb_device *dev;
|
|
snd_card_t *card;
|
|
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 */
|