/*	$NetBSD: uaudioreg.h,v 1.19 2023/04/16 19:26:20 mlelstv Exp $	*/

/*
 * Copyright (c) 1999 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Lennart Augustsson (lennart@augustsson.net) at
 * Carlstedt Research & Technology.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#define UAUDIO_VERSION1		0x100
#define UAUDIO_VERSION2		0x200

#define UDESC_CS_CONFIG		0x22
#define UDESC_CS_STRING		0x23
#define UDESC_CS_INTERFACE	0x24
#define UDESC_CS_ENDPOINT	0x25

#define UDESCSUB_AC_HEADER	1
#define UDESCSUB_AC_INPUT	2
#define UDESCSUB_AC_OUTPUT	3
#define UDESCSUB_AC_MIXER	4
#define UDESCSUB_AC_SELECTOR	5
#define UDESCSUB_AC_FEATURE	6
#define UDESCSUB_AC_EFFECT      7
#define UDESCSUB_AC_PROCESSING	8
#define UDESCSUB_AC_EXTENSION	9
#define UDESCSUB_AC_CLKSRC	10
#define UDESCSUB_AC_CLKSEL	11
#define UDESCSUB_AC_CLKMULT	12
#define UDESCSUB_AC_RATECONV    13

/* The first fields are identical to usb_endpoint_descriptor_t */
typedef struct {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bEndpointAddress;
	uByte		bmAttributes;
	uWord		wMaxPacketSize;
	uByte		bInterval;
	/*
	 * The following two entries are only used by the Audio Class.
	 * And according to the specs the Audio Class is the only one
	 * allowed to extend the endpoint descriptor.
	 * Who knows what goes on in the minds of the people in the USB
	 * standardization?  :-(
	 *
	 * UAC2 no longer uses these extra fields. Check bLength to
	 * find out if these exist.
	 */
	uByte		bRefresh;
	uByte		bSynchAddress;
} UPACKED usb_endpoint_descriptor_audio_t;

/* generic, for iteration */
typedef struct {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
} UPACKED uaudio_cs_descriptor_t;

struct usb_audio_control_descriptor {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uWord		bcdADC;
	uWord		wTotalLength;
	uByte		bInCollection;
	uByte		baInterfaceNr[1];
} UPACKED;

struct usb_audio_streaming_interface_v1_descriptor {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bTerminalLink;
	uByte		bDelay;
	uWord		wFormatTag;
} UPACKED;

struct usb_audio_streaming_interface_v2_descriptor {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bTerminalLink;
	uByte		bmControls;
	uByte		bFormatType;
	uDWord		bmFormats;
	uByte		bNrChannels;
	uDWord		bmChannelConfig;
	uByte		iChannelNames;
} UPACKED;

union usb_audio_streaming_interface_descriptor {
	struct usb_audio_streaming_interface_v1_descriptor v1;
	struct usb_audio_streaming_interface_v2_descriptor v2;
};

struct usb_audio_streaming_endpoint_descriptor {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bmAttributes;
#define UA_SED_FREQ_CONTROL	0x01
#define UA_SED_PITCH_CONTROL	0x02
#define UA_SED_MAXPACKETSONLY	0x80
	uByte		bLockDelayUnits;
	uWord		wLockDelay;
} UPACKED;

struct usb_audio_streaming_type1_v1_descriptor {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bFormatType;
	uByte		bNrChannels;
	uByte		bSubFrameSize;
	uByte		bBitResolution;
	uByte		bSamFreqType;
#define UA_SAMP_CONTINUOUS 0
	uByte		tSamFreq[3*AUFMT_MAX_FREQUENCIES];
#define UA_GETSAMP(p, n) ((p)->tSamFreq[(n)*3+0] | ((p)->tSamFreq[(n)*3+1] << 8) | ((p)->tSamFreq[(n)*3+2] << 16))
#define UA_SAMP_LO(p) UA_GETSAMP(p, 0)
#define UA_SAMP_HI(p) UA_GETSAMP(p, 1)
} UPACKED;

struct usb_audio_streaming_type1_v2_descriptor {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bFormatType;
	uByte		bSubslotSize;
	uByte		bBitResolution;
} UPACKED;

union usb_audio_streaming_type1_descriptor {
	struct usb_audio_streaming_type1_v1_descriptor v1;
	struct usb_audio_streaming_type1_v2_descriptor v2;
};

struct usb_audio_v1_cluster {
	uByte		bNrChannels;
	uWord		wChannelConfig;
#define	UA_CHANNEL_LEFT		0x0001
#define	UA_CHANNEL_RIGHT	0x0002
#define	UA_CHANNEL_CENTER	0x0004
#define	UA_CHANNEL_LFE		0x0008
#define	UA_CHANNEL_L_SURROUND	0x0010
#define	UA_CHANNEL_R_SURROUND	0x0020
#define	UA_CHANNEL_L_CENTER	0x0040
#define	UA_CHANNEL_R_CENTER	0x0080
#define	UA_CHANNEL_SURROUND	0x0100
#define	UA_CHANNEL_L_SIDE	0x0200
#define	UA_CHANNEL_R_SIDE	0x0400
#define	UA_CHANNEL_TOP		0x0800
	uByte		iChannelNames;
} UPACKED;

struct usb_audio_v2_cluster {
	uByte		bNrChannels;
	uDWord		bmChannelConfig;
/*#define	UA_CHANNEL_LEFT		0x00000001 */
/*#define	UA_CHANNEL_RIGHT	0x00000002 */
/*#define	UA_CHANNEL_CENTER	0x00000004 */
/*#define	UA_CHANNEL_LFE		0x00000008 */
#define	UA_CHANNEL_BL		0x00000010
#define	UA_CHANNEL_BR		0x00000020
#define	UA_CHANNEL_FLC		0x00000040
#define	UA_CHANNEL_FRC		0x00000080
#define	UA_CHANNEL_BC		0x00000100
#define	UA_CHANNEL_SL		0x00000200
#define	UA_CHANNEL_SR		0x00000400
#define	UA_CHANNEL_TC		0x00000800
#define	UA_CHANNEL_TFL		0x00001000
#define	UA_CHANNEL_TFC		0x00002000
#define	UA_CHANNEL_TFR		0x00004000
#define	UA_CHANNEL_TBL		0x00008000
#define	UA_CHANNEL_TBC		0x00010000
#define	UA_CHANNEL_TBR		0x00020000
#define	UA_CHANNEL_TFLC		0x00040000
#define	UA_CHANNEL_TFRC		0x00080000
#define	UA_CHANNEL_LLFE		0x00100000
#define	UA_CHANNEL_RLFE		0x00200000
#define	UA_CHANNEL_TSL		0x00400000
#define	UA_CHANNEL_TSR		0x00800000
#define	UA_CHANNEL_BOTTOM	0x01000000
#define	UA_CHANNEL_BOTTOMLC	0x02000000
#define	UA_CHANNEL_BOTTOMRC	0x04000000
#define	UA_CHANNEL_RD		0x80000000
	uByte		iChannelNames;
} UPACKED;

union usb_audio_cluster {
	struct usb_audio_v1_cluster v1;
	struct usb_audio_v2_cluster v2;
};

/* Shared by all units and terminals */
struct usb_audio_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bUnitId;
};

/* UDESCSUB_AC_INPUT */
struct usb_audio_input_v1_terminal {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bTerminalId;
	uWord		wTerminalType;
	uByte		bAssocTerminal;
	uByte		bNrChannels;
	uWord		wChannelConfig;
	uByte		iChannelNames;
	uByte		iTerminal;
} UPACKED;
struct usb_audio_input_v2_terminal {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bTerminalId;
	uWord		wTerminalType;
	uByte		bAssocTerminal;
	uByte		bCSourceId;
	uByte		bNrChannels;
	uDWord		bmChannelConfig;
	uByte		iChannelNames;
	uWord		bmControls;
	uByte		iTerminal;
} UPACKED;

union usb_audio_input_terminal {
	struct usb_audio_input_v1_terminal v1;
	struct usb_audio_input_v2_terminal v2;
};

/* UDESCSUB_AC_OUTPUT */
struct usb_audio_output_v1_terminal {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bTerminalId;
	uWord		wTerminalType;
	uByte		bAssocTerminal;
	uByte		bSourceId;
	uByte		iTerminal;
} UPACKED;
struct usb_audio_output_v2_terminal {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bTerminalId;
	uWord		wTerminalType;
	uByte		bAssocTerminal;
	uByte		bSourceId;
	uByte		bCSourceId;
	uWord		bmControls;
	uByte		iTerminal;
} UPACKED;

union usb_audio_output_terminal {
	struct usb_audio_output_v1_terminal v1;
	struct usb_audio_output_v2_terminal v2;
};

/* UDESCSUB_AC_MIXER */
struct usb_audio_mixer_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bUnitId;
	uByte		bNrInPins;
	uByte		baSourceId[255]; /* [bNrInPins] */
	/* union usb_audio_mixer_unit_1 */
} UPACKED;
struct usb_audio_mixer_v1_unit_1 {
	uByte		bNrChannels;
	uWord		wChannelConfig;
	uByte		iChannelNames;
	uByte		bmControls[255]; /* [bNrChannels] */
	/*uByte		iMixer;*/
} UPACKED;
struct usb_audio_mixer_v2_unit_1 {
	uByte		bNrChannels;
	uDWord		bmChannelConfig;
	uByte		iChannelNames;
	uByte		bmMixerControls[255]; /* [bNrChannels] */
	/*uByte		bmControls;*/
	/*uByte		iMixer;*/
} UPACKED;
#define UA_MIX_CLUSTER_MASK	0x03
#define UA_MIX_CLUSTER_RO	0x01
#define UA_MIX_CLUSTER_RW	0x03
/* UAC2 */
#define UA_MIX_UNDERFLOW_MASK	0x0c
#define UA_MIX_UNDERFLOW_RO	0x04
#define UA_MIX_UNDERFLOW_RW	0x0c
#define UA_MIX_OVERFLOW_MASK	0x30
#define UA_MIX_OVERFLOW_RO	0x10
#define UA_MIX_OVERFLOW_RW	0x30

union usb_audio_mixer_unit_1 {
	struct usb_audio_mixer_v1_unit_1 v1;
	struct usb_audio_mixer_v2_unit_1 v2;
};

/* UDESCSUB_AC_SELECTOR */
struct usb_audio_selector_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bUnitId;
	uByte		bNrInPins;
	uByte		baSourceId[255]; /* [bNrInPins] */
	/* uByte	iSelector; */
} UPACKED;

/* UDESCSUB_AC_FEATURE */
struct usb_audio_feature_v1_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bUnitId;
	uByte		bSourceId;
	uByte		bControlSize;
	uByte		bmaControls[255]; /* size for more than enough */
	/* uByte	iFeature; */
} UPACKED;
struct usb_audio_feature_v2_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bUnitId;
	uByte		bSourceId;
	uDWord		bmaControls[255]; /* size for more than enough */
	/* uByte	iFeature; */
} UPACKED;

union usb_audio_feature_unit {
	struct usb_audio_feature_v1_unit v1;
	struct usb_audio_feature_v2_unit v2;
};

/* UDESCSUB_AC_PROCESSING */
struct usb_audio_processing_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bUnitId;
	uWord		wProcessType;
	uByte		bNrInPins;
	uByte		baSourceId[255]; /* [bNrInPins] */
	/* struct usb_audio_processing_unit_1 */
} UPACKED;
struct usb_audio_processing_unit_1{
	uByte		bNrChannels;
	uWord		wChannelConfig;
	uByte		iChannelNames;
	uByte		bControlSize;
	uByte		bmControls[255]; /* [bControlSize] */
#define UA_PROC_ENABLE_MASK 1
} UPACKED;

struct usb_audio_processing_unit_updown {
	uByte		iProcessing;
	uByte		bNrModes;
	uWord		waModes[255]; /* [bNrModes] */
} UPACKED;

/* UDESCSUB_AC_EXTENSION */
struct usb_audio_extension_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bUnitId;
	uWord		wExtensionCode;
	uByte		bNrInPins;
	uByte		baSourceId[255]; /* [bNrInPins] */
	/* struct usb_audio_extension_unit_1 */
} UPACKED;
struct usb_audio_extension_unit_1 {
	uByte		bNrChannels;
	uWord		wChannelConfig;
	uByte		iChannelNames;
	uByte		bControlSize;
	uByte		bmControls[255]; /* [bControlSize] */
#define UA_EXT_ENABLE_MASK 1
#define UA_EXT_ENABLE 1
	/*uByte		iExtension;*/
} UPACKED;

/* UDESCSUB_AC_CLKSRC */
struct usb_audio_clksrc_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bClockId;
	uByte		bmAttributes;
	uByte		bmControls;
	uByte		bAssocTerminal;
	uByte		iClockSource;
} UPACKED;

/* UDESCSUB_AC_CLKSEL */
struct usb_audio_clksel_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bClockId;
	uByte		bNrInPins;
	uByte		baCSourceId[255];
	/*uByte		bmControls;*/
	/*uByte		iClockSelector;*/
} UPACKED;

/* UDESCSUB_AC_CLKMULT */
struct usb_audio_clkmult_unit {
	uByte		bLength;
	uByte		bDescriptorType;
	uByte		bDescriptorSubtype;
	uByte		bClockId;
	uByte		bCSourceId;
	uByte		bmControls;
	uByte		iClockMultiplier;
} UPACKED;

/* USB terminal types */
#define UAT_UNDEFINED		0x0100
#define UAT_STREAM		0x0101
#define UAT_VENDOR		0x01ff
/* input terminal types */
#define UATI_UNDEFINED		0x0200
#define UATI_MICROPHONE		0x0201
#define UATI_DESKMICROPHONE	0x0202
#define UATI_PERSONALMICROPHONE	0x0203
#define UATI_OMNIMICROPHONE	0x0204
#define UATI_MICROPHONEARRAY	0x0205
#define UATI_PROCMICROPHONEARR	0x0206
/* output terminal types */
#define UATO_UNDEFINED		0x0300
#define UATO_SPEAKER		0x0301
#define UATO_HEADPHONES		0x0302
#define UATO_DISPLAYAUDIO	0x0303
#define UATO_DESKTOPSPEAKER	0x0304
#define UATO_ROOMSPEAKER	0x0305
#define UATO_COMMSPEAKER	0x0306
#define UATO_SUBWOOFER		0x0307
/* bidir terminal types */
#define UATB_UNDEFINED		0x0400
#define UATB_HANDSET		0x0401
#define UATB_HEADSET		0x0402
#define UATB_SPEAKERPHONE	0x0403
#define UATB_SPEAKERPHONEESUP	0x0404
#define UATB_SPEAKERPHONEECANC	0x0405
/* telephony terminal types */
#define UATT_UNDEFINED		0x0500
#define UATT_PHONELINE		0x0501
#define UATT_TELEPHONE		0x0502
#define UATT_DOWNLINEPHONE	0x0503
/* external terminal types */
#define UATE_UNDEFINED		0x0600
#define UATE_ANALOGCONN		0x0601
#define UATE_DIGITALAUIFC	0x0602
#define UATE_LINECONN		0x0603
#define UATE_LEGACYCONN		0x0604
#define UATE_SPDIF		0x0605
#define UATE_1394DA		0x0606
#define UATE_1394DV		0x0607
/* embedded function terminal types */
#define UATF_UNDEFINED		0x0700
#define UATF_CALIBNOISE		0x0701
#define UATF_EQUNOISE		0x0702
#define UATF_CDPLAYER		0x0703
#define UATF_DAT		0x0704
#define UATF_DCC		0x0705
#define UATF_MINIDISK		0x0706
#define UATF_ANALOGTAPE		0x0707
#define UATF_PHONOGRAPH		0x0708
#define UATF_VCRAUDIO		0x0709
#define UATF_VIDEODISCAUDIO	0x070a
#define UATF_DVDAUDIO		0x070b
#define UATF_TVTUNERAUDIO	0x070c
#define UATF_SATELLITE		0x070d
#define UATF_CABLETUNER		0x070e
#define UATF_DSS		0x070f
#define UATF_RADIORECV		0x0710
#define UATF_RADIOXMIT		0x0711
#define UATF_MULTITRACK		0x0712
#define UATF_SYNTHESIZER	0x0713


#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

#define V2_CUR		0x01
#define V2_RANGES	0x02

#define V2_CUR_CLKFREQ	0x01
#define V2_CUR_CLKSEL	0x01
#define V2_CUR_SELECTOR 0x01


#define MUTE_CONTROL	0x01
#define VOLUME_CONTROL	0x02
#define BASS_CONTROL	0x03
#define MID_CONTROL	0x04
#define TREBLE_CONTROL	0x05
#define GRAPHIC_EQUALIZER_CONTROL	0x06
#define AGC_CONTROL	0x07
#define DELAY_CONTROL	0x08
#define BASS_BOOST_CONTROL 0x09
#define LOUDNESS_CONTROL 0x0a
#define GAIN_CONTROL	0x0b
#define GAINPAD_CONTROL	0x0c
#define PHASEINV_CONTROL 0x0d
/* V2 */
#define UNDERFLOW_CONTROL 0x0e
#define OVERFLOW_CONTROL 0x0f

#define FU_MASK(u) (1 << ((u)-1))
#define V2_FU_MASK(u) (3 << ((u)-1)*2)

#define MASTER_CHAN	0

#define AS_GENERAL	1
#define FORMAT_TYPE	2
#define FORMAT_SPECIFIC 3

#define UA_FMT_PCM	1
#define UA_FMT_PCM8	2
#define UA_FMT_IEEE_FLOAT 3
#define UA_FMT_ALAW	4
#define UA_FMT_MULAW	5
#define UA_FMT_MPEG	0x1001
#define UA_FMT_AC3	0x1002

#define UA_V2_FMT_PCM		0x01
#define UA_V2_FMT_PCM8		0x02
#define UA_V2_FMT_IEEE_FLOAT	0x04
#define UA_V2_FMT_ALAW		0x08
#define UA_V2_FMT_MULAW		0x10

#define SAMPLING_FREQ_CONTROL	0x01
#define PITCH_CONTROL		0x02

#define FORMAT_TYPE_UNDEFINED 0
#define FORMAT_TYPE_I 1
#define FORMAT_TYPE_II 2
#define FORMAT_TYPE_III 3

#define UA_PROC_MASK(n) (1<< ((n)-1))
#define PROCESS_UNDEFINED		0
#define  XX_ENABLE_CONTROL			1
#define UPDOWNMIX_PROCESS		1
#define  UD_ENABLE_CONTROL			1
#define  UD_MODE_SELECT_CONTROL			2
#define DOLBY_PROLOGIC_PROCESS		2
#define  DP_ENABLE_CONTROL			1
#define  DP_MODE_SELECT_CONTROL			2
#define P3D_STEREO_EXTENDER_PROCESS	3
#define  P3D_ENABLE_CONTROL			1
#define  P3D_SPACIOUSNESS_CONTROL		2
#define REVERBATION_PROCESS		4
#define  RV_ENABLE_CONTROL			1
#define  RV_LEVEL_CONTROL			2
#define  RV_TIME_CONTROL			3
#define  RV_FEEDBACK_CONTROL			4
#define CHORUS_PROCESS			5
#define  CH_ENABLE_CONTROL			1
#define  CH_LEVEL_CONTROL			2
#define  CH_RATE_CONTROL			3
#define  CH_DEPTH_CONTROL			4
#define DYN_RANGE_COMP_PROCESS		6
#define  DR_ENABLE_CONTROL			1
#define  DR_COMPRESSION_RATE_CONTROL		2
#define  DR_MAXAMPL_CONTROL			3
#define  DR_THRESHOLD_CONTROL			4
#define  DR_ATTACK_TIME_CONTROL			5
#define  DR_RELEASE_TIME_CONTROL		6