/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_USB_MIXER_H
#define _SYS_USB_MIXER_H



#ifdef __cplusplus
extern "C" {
#endif

#define USB_AUDIO_MIXER_REGISTRATION    1

/* Valid for the current alternate */
typedef struct usb_audio_formats {
        uchar_t         fmt_alt;        /* current alternate */
        uchar_t         fmt_chns;       /* 1-255 */
        uchar_t         fmt_precision;  /* 8, 16, 24, or 32 */
        uchar_t         fmt_encoding;   /* AUDIO_ENCODING_LINEAR, etc. */
        uchar_t         fmt_termlink;   /* for feature unit */
        uchar_t         fmt_n_srs;      /* number of sample rates */
        uint_t          *fmt_srs;       /* same as alt_sample_rates */
} usb_audio_formats_t;

_NOTE(SCHEME_PROTECTS_DATA("unshared", usb_audio_formats))


typedef struct usb_audio_play_req {
        int             up_samples;
        void            *up_handle;
} usb_audio_play_req_t;

#define USB_AS_N_FORMATS        20

typedef struct usb_as_registration {
        uchar_t                 reg_valid;
        uchar_t                 reg_mode;       /* play or record */
        uchar_t                 reg_n_formats;
        int                     reg_ifno;
        usb_audio_formats_t     reg_formats[USB_AS_N_FORMATS];
} usb_as_registration_t;

/* MCTLs between usb_ac and usb_as */
#define USB_AUDIO_SETUP                 0x0100
#define USB_AUDIO_TEARDOWN              0x0200
#define USB_AUDIO_START_PLAY            0x0300
#define USB_AUDIO_STOP_PLAY             0x0400
#define USB_AUDIO_PAUSE_PLAY            0x0500
#define USB_AUDIO_START_RECORD          0x0600
#define USB_AUDIO_STOP_RECORD           0x0700
#define USB_AUDIO_SET_FORMAT            0x0800
#define USB_AUDIO_SET_SAMPLE_FREQ       0x0900

/* MCTLs between usb_ac and usb_ah */
#define USB_AUDIO_VOL_CHANGE            0x1
#define USB_AUDIO_BALANCE               0x2
#define USB_AUDIO_MUTE                  0x3
#define USB_AUDIO_BASS                  0x4
#define USB_AUDIO_TREBLE                0x5

#ifdef __cplusplus
}
#endif

#endif  /* _SYS_USB_MIXER_H */