Commit 7e847894 authored by Daniel Mack's avatar Daniel Mack Committed by Takashi Iwai
Browse files

linux/usb/audio.h: split header 



- Split the audio.h file in two to clearly denote the differences
  between the standards.
- Add many more defines to audio-v2.h. Most of them are not currently
  used.
- Replaced a magic value with a proper define

Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 36e632d6

include/linux/usb/audio-v2.h

0 → 100644
+319 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2010 Daniel Mack <daniel@caiaq.de>

 *

 * This software is distributed under the terms of the GNU General Public

 * License ("GPL") version 2, as published by the Free Software Foundation.

 *

 * This file holds USB constants and structures defined

 * by the USB Device Class Definition for Audio Devices in version 2.0.

 * Comments below reference relevant sections of the documents contained

 * in http://www.usb.org/developers/devclass_docs/Audio2.0_final.zip

 */



#ifndef __LINUX_USB_AUDIO_V2_H

#define __LINUX_USB_AUDIO_V2_H



#include <linux/types.h>



/* v1.0 and v2.0 of this standard have many things in common. For the rest

 * of the definitions, please refer to audio.h */



/* 4.7.2.1 Clock Source Descriptor */



struct uac_clock_source_descriptor {

	__u8 bLength;

	__u8 bDescriptorType;

	__u8 bDescriptorSubtype;

	__u8 bClockID;

	__u8 bmAttributes;

	__u8 bmControls;

	__u8 bAssocTerminal;

	__u8 iClockSource;

} __attribute__((packed));



/* 4.7.2.2 Clock Source Descriptor */



struct uac_clock_selector_descriptor {

	__u8 bLength;

	__u8 bDescriptorType;

	__u8 bDescriptorSubtype;

	__u8 bClockID;

	__u8 bNrInPins;

	__u8 bmControls;

	__u8 baCSourceID[];

} __attribute__((packed));



/* 4.9.2 Class-Specific AS Interface Descriptor */



struct uac_as_header_descriptor_v2 {

	__u8 bLength;

	__u8 bDescriptorType;

	__u8 bDescriptorSubtype;

	__u8 bTerminalLink;

	__u8 bmControls;

	__u8 bFormatType;

	__u32 bmFormats;

	__u8 bNrChannels;

	__u32 bmChannelConfig;

	__u8 iChannelNames;

} __attribute__((packed));





/* A.7 Audio Function Category Codes */

#define UAC2_FUNCTION_SUBCLASS_UNDEFINED	0x00

#define UAC2_FUNCTION_DESKTOP_SPEAKER		0x01

#define UAC2_FUNCTION_HOME_THEATER		0x02

#define UAC2_FUNCTION_MICROPHONE		0x03

#define UAC2_FUNCTION_HEADSET			0x04

#define UAC2_FUNCTION_TELEPHONE			0x05

#define UAC2_FUNCTION_CONVERTER			0x06

#define UAC2_FUNCTION_SOUND_RECORDER		0x07

#define UAC2_FUNCTION_IO_BOX			0x08

#define UAC2_FUNCTION_MUSICAL_INSTRUMENT	0x09

#define UAC2_FUNCTION_PRO_AUDIO			0x0a

#define UAC2_FUNCTION_AUDIO_VIDEO		0x0b

#define UAC2_FUNCTION_CONTROL_PANEL		0x0c

#define UAC2_FUNCTION_OTHER			0xff



/* A.9 Audio Class-Specific AC Interface Descriptor Subtypes */

/* see audio.h for the rest, which is identical to v1 */

#define UAC2_EFFECT_UNIT			0x07

#define UAC2_PROCESSING_UNIT_V2		0x08

#define UAC2_EXTENSION_UNIT_V2		0x09

#define UAC2_CLOCK_SOURCE		0x0a

#define UAC2_CLOCK_SELECTOR		0x0b

#define UAC2_CLOCK_MULTIPLIER		0x0c

#define UAC2_SAMPLE_RATE_CONVERTER	0x0d



/* A.10 Audio Class-Specific AS Interface Descriptor Subtypes */

/* see audio.h for the rest, which is identical to v1 */

#define UAC2_ENCODER			0x03

#define UAC2_DECODER			0x04



/* A.11 Effect Unit Effect Types */

#define UAC2_EFFECT_UNDEFINED		0x00

#define UAC2_EFFECT_PARAM_EQ		0x01

#define UAC2_EFFECT_REVERB		0x02

#define UAC2_EFFECT_MOD_DELAY		0x03

#define UAC2_EFFECT_DYN_RANGE_COMP	0x04



/* A.12 Processing Unit Process Types */

#define UAC2_PROCESS_UNDEFINED		0x00

#define UAC2_PROCESS_UP_DOWNMIX		0x01

#define UAC2_PROCESS_DOLBY_PROLOCIC	0x02

#define UAC2_PROCESS_STEREO_EXTENDER	0x03



/* A.14 Audio Class-Specific Request Codes */

#define UAC2_CS_CUR			0x01

#define UAC2_CS_RANGE			0x02



/* A.15 Encoder Type Codes */

#define UAC2_ENCODER_UNDEFINED		0x00

#define UAC2_ENCODER_OTHER		0x01

#define UAC2_ENCODER_MPEG		0x02

#define UAC2_ENCODER_AC3		0x03

#define UAC2_ENCODER_WMA		0x04

#define UAC2_ENCODER_DTS		0x05



/* A.16 Decoder Type Codes */

#define UAC2_DECODER_UNDEFINED		0x00

#define UAC2_DECODER_OTHER		0x01

#define UAC2_DECODER_MPEG		0x02

#define UAC2_DECODER_AC3		0x03

#define UAC2_DECODER_WMA		0x04

#define UAC2_DECODER_DTS		0x05



/* A.17.1 Clock Source Control Selectors */

#define UAC2_CS_UNDEFINED		0x00

#define UAC2_CS_CONTROL_SAM_FREQ	0x01

#define UAC2_CS_CONTROL_CLOCK_VALID	0x02



/* A.17.2 Clock Selector Control Selectors */

#define UAC2_CX_UNDEFINED		0x00

#define UAC2_CX_CLOCK_SELECTOR		0x01



/* A.17.3 Clock Multiplier Control Selectors */

#define UAC2_CM_UNDEFINED		0x00

#define UAC2_CM_NUMERATOR		0x01

#define UAC2_CM_DENOMINTATOR		0x02



/* A.17.4 Terminal Control Selectors */

#define UAC2_TE_UNDEFINED		0x00

#define UAC2_TE_COPY_PROTECT		0x01

#define UAC2_TE_CONNECTOR		0x02

#define UAC2_TE_OVERLOAD		0x03

#define UAC2_TE_CLUSTER			0x04

#define UAC2_TE_UNDERFLOW		0x05

#define UAC2_TE_OVERFLOW		0x06

#define UAC2_TE_LATENCY			0x07



/* A.17.5 Mixer Control Selectors */

#define UAC2_MU_UNDEFINED		0x00

#define UAC2_MU_MIXER			0x01

#define UAC2_MU_CLUSTER			0x02

#define UAC2_MU_UNDERFLOW		0x03

#define UAC2_MU_OVERFLOW		0x04

#define UAC2_MU_LATENCY			0x05



/* A.17.6 Selector Control Selectors */

#define UAC2_SU_UNDEFINED		0x00

#define UAC2_SU_SELECTOR		0x01

#define UAC2_SU_LATENCY			0x02



/* A.17.7 Feature Unit Control Selectors */

/* see audio.h for the rest, which is identical to v1 */

#define UAC2_FU_INPUT_GAIN		0x0b

#define UAC2_FU_INPUT_GAIN_PAD		0x0c

#define UAC2_FU_PHASE_INVERTER		0x0d

#define UAC2_FU_UNDERFLOW		0x0e

#define UAC2_FU_OVERFLOW		0x0f

#define UAC2_FU_LATENCY			0x10



/* A.17.8.1 Parametric Equalizer Section Effect Unit Control Selectors */

#define UAC2_PE_UNDEFINED		0x00

#define UAC2_PE_ENABLE			0x01

#define UAC2_PE_CENTERFREQ		0x02

#define UAC2_PE_QFACTOR			0x03

#define UAC2_PE_GAIN			0x04

#define UAC2_PE_UNDERFLOW		0x05

#define UAC2_PE_OVERFLOW		0x06

#define UAC2_PE_LATENCY			0x07



/* A.17.8.2 Reverberation Effect Unit Control Selectors */

#define UAC2_RV_UNDEFINED		0x00

#define UAC2_RV_ENABLE			0x01

#define UAC2_RV_TYPE			0x02

#define UAC2_RV_LEVEL			0x03

#define UAC2_RV_TIME			0x04

#define UAC2_RV_FEEDBACK		0x05

#define UAC2_RV_PREDELAY		0x06

#define UAC2_RV_DENSITY			0x07

#define UAC2_RV_HIFREQ_ROLLOFF		0x08

#define UAC2_RV_UNDERFLOW		0x09

#define UAC2_RV_OVERFLOW		0x0a

#define UAC2_RV_LATENCY			0x0b



/* A.17.8.3 Modulation Delay Effect Control Selectors */

#define UAC2_MD_UNDEFINED		0x00

#define UAC2_MD_ENABLE			0x01

#define UAC2_MD_BALANCE			0x02

#define UAC2_MD_RATE			0x03

#define UAC2_MD_DEPTH			0x04

#define UAC2_MD_TIME			0x05

#define UAC2_MD_FEEDBACK		0x06

#define UAC2_MD_UNDERFLOW		0x07

#define UAC2_MD_OVERFLOW		0x08

#define UAC2_MD_LATENCY			0x09



/* A.17.8.4 Dynamic Range Compressor Effect Unit Control Selectors */

#define UAC2_DR_UNDEFINED		0x00

#define UAC2_DR_ENABLE			0x01

#define UAC2_DR_COMPRESSION_RATE	0x02

#define UAC2_DR_MAXAMPL			0x03

#define UAC2_DR_THRESHOLD		0x04

#define UAC2_DR_ATTACK_TIME		0x05

#define UAC2_DR_RELEASE_TIME		0x06

#define UAC2_DR_UNDEFLOW		0x07

#define UAC2_DR_OVERFLOW		0x08

#define UAC2_DR_LATENCY			0x09



/* A.17.9.1 Up/Down-mix Processing Unit Control Selectors */

#define UAC2_UD_UNDEFINED		0x00

#define UAC2_UD_ENABLE			0x01

#define UAC2_UD_MODE_SELECT		0x02

#define UAC2_UD_CLUSTER			0x03

#define UAC2_UD_UNDERFLOW		0x04

#define UAC2_UD_OVERFLOW		0x05

#define UAC2_UD_LATENCY			0x06



/* A.17.9.2 Dolby Prologic[tm] Processing Unit Control Selectors */

#define UAC2_DP_UNDEFINED		0x00

#define UAC2_DP_ENABLE			0x01

#define UAC2_DP_MODE_SELECT		0x02

#define UAC2_DP_CLUSTER			0x03

#define UAC2_DP_UNDERFFLOW		0x04

#define UAC2_DP_OVERFLOW		0x05

#define UAC2_DP_LATENCY			0x06



/* A.17.9.3 Stereo Expander Processing Unit Control Selectors */

#define UAC2_ST_EXT_UNDEFINED		0x00

#define UAC2_ST_EXT_ENABLE		0x01

#define UAC2_ST_EXT_WIDTH		0x02

#define UAC2_ST_EXT_UNDEFLOW		0x03

#define UAC2_ST_EXT_OVERFLOW		0x04

#define UAC2_ST_EXT_LATENCY		0x05



/* A.17.10 Extension Unit Control Selectors */

#define UAC2_XU_UNDEFINED		0x00

#define UAC2_XU_ENABLE			0x01

#define UAC2_XU_CLUSTER			0x02

#define UAC2_XU_UNDERFLOW		0x03

#define UAC2_XU_OVERFLOW		0x04

#define UAC2_XU_LATENCY			0x05



/* A.17.11 AudioStreaming Interface Control Selectors */

#define UAC2_AS_UNDEFINED		0x00

#define UAC2_AS_ACT_ALT_SETTING		0x01

#define UAC2_AS_VAL_ALT_SETTINGS	0x02

#define UAC2_AS_AUDIO_DATA_FORMAT	0x03



/* A.17.12 Encoder Control Selectors */

#define UAC2_EN_UNDEFINED		0x00

#define UAC2_EN_BIT_RATE		0x01

#define UAC2_EN_QUALITY			0x02

#define UAC2_EN_VBR			0x03

#define UAC2_EN_TYPE			0x04

#define UAC2_EN_UNDERFLOW		0x05

#define UAC2_EN_OVERFLOW		0x06

#define UAC2_EN_ENCODER_ERROR		0x07

#define UAC2_EN_PARAM1			0x08

#define UAC2_EN_PARAM2			0x09

#define UAC2_EN_PARAM3			0x0a

#define UAC2_EN_PARAM4			0x0b

#define UAC2_EN_PARAM5			0x0c

#define UAC2_EN_PARAM6			0x0d

#define UAC2_EN_PARAM7			0x0e

#define UAC2_EN_PARAM8			0x0f



/* A.17.13.1 MPEG Decoder Control Selectors */

#define UAC2_MPEG_UNDEFINED		0x00

#define UAC2_MPEG_DUAL_CHANNEL		0x01

#define UAC2_MPEG_SECOND_STEREO		0x02

#define UAC2_MPEG_MULTILINGUAL		0x03

#define UAC2_MPEG_DYN_RANGE		0x04

#define UAC2_MPEG_SCALING		0x05

#define UAC2_MPEG_HILO_SCALING		0x06

#define UAC2_MPEG_UNDERFLOW		0x07

#define UAC2_MPEG_OVERFLOW		0x08

#define UAC2_MPEG_DECODER_ERROR		0x09



/* A17.13.2 AC3 Decoder Control Selectors */

#define UAC2_AC3_UNDEFINED		0x00

#define UAC2_AC3_MODE			0x01

#define UAC2_AC3_DYN_RANGE		0x02

#define UAC2_AC3_SCALING		0x03

#define UAC2_AC3_HILO_SCALING		0x04

#define UAC2_AC3_UNDERFLOW		0x05

#define UAC2_AC3_OVERFLOW		0x06

#define UAC2_AC3_DECODER_ERROR		0x07



/* A17.13.3 WMA Decoder Control Selectors */

#define UAC2_WMA_UNDEFINED		0x00

#define UAC2_WMA_UNDERFLOW		0x01

#define UAC2_WMA_OVERFLOW		0x02

#define UAC2_WMA_DECODER_ERROR		0x03



/* A17.13.4 DTS Decoder Control Selectors */

#define UAC2_DTS_UNDEFINED		0x00

#define UAC2_DTS_UNDERFLOW		0x01

#define UAC2_DTS_OVERFLOW		0x02

#define UAC2_DTS_DECODER_ERROR		0x03



/* A17.14 Endpoint Control Selectors */

#define UAC2_EP_CS_UNDEFINED		0x00

#define UAC2_EP_CS_PITCH		0x01

#define UAC2_EP_CS_DATA_OVERRUN		0x02

#define UAC2_EP_CS_DATA_UNDERRUN	0x03



#endif /* __LINUX_USB_AUDIO_V2_H */

include/linux/usb/audio.h

+7 −43
Original line number Diff line number Diff line
@@ -13,6 +13,9 @@ 
 * Comments below reference relevant sections of that document:

 *

 * http://www.usb.org/developers/devclass_docs/audio10.pdf

 *

 * Types and defines in this file are either specific to version 1.0 of

 * this standard or common for newer versions.

 */



#ifndef __LINUX_USB_AUDIO_H
@@ -20,14 +23,15 @@ 


#include <linux/types.h>



/* bInterfaceProtocol values to denote the version of the standard used */

#define UAC_VERSION_1			0x00

#define UAC_VERSION_2			0x20



/* A.2 Audio Interface Subclass Codes */

#define USB_SUBCLASS_AUDIOCONTROL	0x01

#define USB_SUBCLASS_AUDIOSTREAMING	0x02

#define USB_SUBCLASS_MIDISTREAMING	0x03



#define UAC_VERSION_1			0x00

#define UAC_VERSION_2			0x20



/* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */

#define UAC_HEADER			0x01

#define UAC_INPUT_TERMINAL		0x02
@@ -38,15 +42,6 @@ 
#define UAC_PROCESSING_UNIT_V1		0x07

#define UAC_EXTENSION_UNIT_V1		0x08



/* UAC v2.0 types */

#define UAC_EFFECT_UNIT			0x07

#define UAC_PROCESSING_UNIT_V2		0x08

#define UAC_EXTENSION_UNIT_V2		0x09

#define UAC_CLOCK_SOURCE		0x0a

#define UAC_CLOCK_SELECTOR		0x0b

#define UAC_CLOCK_MULTIPLIER		0x0c

#define UAC_SAMPLE_RATE_CONVERTER	0x0d



/* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */

#define UAC_AS_GENERAL			0x01

#define UAC_FORMAT_TYPE			0x02
@@ -78,10 +73,6 @@ 


#define UAC_GET_STAT			0xff



/* Audio class v2.0 handles all the parameter calls differently */

#define UAC2_CS_CUR			0x01

#define UAC2_CS_RANGE			0x02



/* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */

#define UAC_MS_HEADER			0x01

#define UAC_MIDI_IN_JACK		0x02
@@ -200,19 +191,6 @@ struct uac_as_header_descriptor_v1 { 
	__le16 wFormatTag;		/* The Audio Data Format */

} __attribute__ ((packed));



struct uac_as_header_descriptor_v2 {

	__u8 bLength;

	__u8 bDescriptorType;

	__u8 bDescriptorSubtype;

	__u8 bTerminalLink;

	__u8 bmControls;

	__u8 bFormatType;

	__u32 bmFormats;

	__u8 bNrChannels;

	__u32 bmChannelConfig;

	__u8 iChannelNames;

} __attribute__((packed));



#define UAC_DT_AS_HEADER_SIZE		7



/* Formats - A.1.1 Audio Data Format Type I Codes */
@@ -277,7 +255,6 @@ struct uac_format_type_i_ext_descriptor { 
	__u8 bSideBandProtocol;

} __attribute__((packed));





/* Formats - Audio Data Format Type I Codes */



#define UAC_FORMAT_TYPE_II_MPEG	0x1001
@@ -336,19 +313,6 @@ struct uac_iso_endpoint_descriptor { 
#define UAC_EP_CS_ATTR_PITCH_CONTROL	0x02

#define UAC_EP_CS_ATTR_FILL_MAX		0x80



/* Audio class v2.0: CLOCK_SOURCE descriptor */



struct uac_clock_source_descriptor {

	__u8 bLength;

	__u8 bDescriptorType;

	__u8 bDescriptorSubtype;

	__u8 bClockID;

	__u8 bmAttributes;

	__u8 bmControls;

	__u8 bAssocTerminal;

	__u8 iClockSource;

} __attribute__((packed));



/* A.10.2 Feature Unit Control Selectors */



struct uac_feature_unit_descriptor {

sound/usb/card.c

+2 −1
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ 
#include <linux/moduleparam.h>

#include <linux/mutex.h>

#include <linux/usb/audio.h>

#include <linux/usb/audio-v2.h>



#include <sound/core.h>

#include <sound/info.h>
@@ -250,7 +251,7 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif) 
		 * clock selectors and sample rate conversion units. */



		cs = snd_usb_find_csint_desc(host_iface->extra, host_iface->extralen,

						NULL, UAC_CLOCK_SOURCE);

						NULL, UAC2_CLOCK_SOURCE);



		if (!cs) {

			snd_printk(KERN_ERR "CLOCK_SOURCE descriptor not found\n");

sound/usb/endpoint.c

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/init.h>

#include <linux/usb.h>

#include <linux/usb/audio.h>

#include <linux/usb/audio-v2.h>



#include <sound/core.h>

#include <sound/pcm.h>

sound/usb/format.c

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/init.h>

#include <linux/usb.h>

#include <linux/usb/audio.h>

#include <linux/usb/audio-v2.h>



#include <sound/core.h>

#include <sound/pcm.h>

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