FreeBSD/Linux Kernel Cross Reference
sys/sys/sndstat.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2020 The FreeBSD Foundation
      *
      * This software was developed by Ka Ho Ng
      * under sponsorship from the FreeBSD Foundation.
      *
      * 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 AUTHOR 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 AUTHOR 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _SYS_SNDSTAT_H_
    #define _SYS_SNDSTAT_H_
    
    #include <sys/types.h>
    #ifndef _IOWR
    #include <sys/ioccom.h>
    #endif  /* !_IOWR */
    
    struct sndstioc_nv_arg {
            size_t nbytes;  /* [IN/OUT] buffer size/number of bytes filled */
            void *buf;      /* [OUT] buffer holding a packed nvlist */
    };
    
    /*
     * Common name/value pair names
     */
    #define SNDST_DSPS                      "dsps"
    #define SNDST_DSPS_FROM_USER            "from_user"
    #define SNDST_DSPS_PCHAN                "pchan"
    #define SNDST_DSPS_RCHAN                "rchan"
    #define SNDST_DSPS_NAMEUNIT             "nameunit"
    #define SNDST_DSPS_DEVNODE              "devnode"
    #define SNDST_DSPS_DESC                 "desc"
    #define SNDST_DSPS_PROVIDER             "provider"
    #define SNDST_DSPS_PROVIDER_INFO        "provider_info"
    
    /*
     * Common name/value pair names for play/rec info
     */
    #define SNDST_DSPS_INFO_PLAY            "info_play"
    #define SNDST_DSPS_INFO_REC             "info_rec"
    #define SNDST_DSPS_INFO_MIN_RATE        "min_rate"
    #define SNDST_DSPS_INFO_MAX_RATE        "max_rate"
    #define SNDST_DSPS_INFO_FORMATS         "formats"
    #define SNDST_DSPS_INFO_MIN_CHN         "min_chn"
    #define SNDST_DSPS_INFO_MAX_CHN         "max_chn"
    
    /*
     * sound(4)-specific name/value pair names
     */
    #define SNDST_DSPS_SOUND4_PROVIDER      "sound(4)"
    #define SNDST_DSPS_SOUND4_UNIT          "unit"
    #define SNDST_DSPS_SOUND4_BITPERFECT    "bitperfect"
    #define SNDST_DSPS_SOUND4_PVCHAN        "pvchan"
    #define SNDST_DSPS_SOUND4_RVCHAN        "rvchan"
    
    #define SNDSTIOC_REFRESH_DEVS \
            _IO('D', 100)
    #define SNDSTIOC_GET_DEVS \
            _IOWR('D', 101, struct sndstioc_nv_arg)
    #define SNDSTIOC_ADD_USER_DEVS \
            _IOWR('D', 102, struct sndstioc_nv_arg)
    #define SNDSTIOC_FLUSH_USER_DEVS \
            _IO('D', 103)
    
    #ifdef _KERNEL
    #ifdef COMPAT_FREEBSD32
    
    struct sndstioc_nv_arg32 {
            uint32_t nbytes;
            uint32_t buf;
    };
    
    #define SNDSTIOC_GET_DEVS32 \
            _IOC_NEWTYPE(SNDSTIOC_GET_DEVS, struct sndstioc_nv_arg32)
    #define SNDSTIOC_ADD_USER_DEVS32 \
            _IOC_NEWTYPE(SNDSTIOC_ADD_USER_DEVS, struct sndstioc_nv_arg32)
   
   #endif
   #endif
   
   #endif /* !_SYS_SNDSTAT_H_ */

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