FreeBSD/Linux Kernel Cross Reference
sys/dev/twe/tweio.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2000 Michael Smith
      * Copyright (c) 2003 Paul Saab
      * Copyright (c) 2003 Vinod Kashyap
      * Copyright (c) 2000 BSDi
      * All rights reserved.
      *
     * 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.
     *
     *      $FreeBSD$
     */
    
    /*
     * User-space command
     *
     * Note that the command's scatter/gather list will be computed by the
     * driver, and cannot be filled in by the consumer.
     */
    struct twe_usercommand {
        TWE_Command tu_command;     /* command ready for the controller */
        void        *tu_data;       /* pointer to data in userspace */
        size_t      tu_size;        /* userspace data length */
    };
    
    #define TWEIO_COMMAND           _IOWR('T', 100, struct twe_usercommand)
    
    /*
     * Command queue statistics
     */
    #define TWEQ_FREE       0
    #define TWEQ_BIO        1
    #define TWEQ_READY      2
    #define TWEQ_BUSY       3
    #define TWEQ_COMPLETE   4
    #define TWEQ_COUNT      5       /* total number of queues */
    
    struct twe_qstat {
        u_int32_t   q_length;
        u_int32_t   q_max;
        u_int32_t   q_min;
    };
    
    /*
     * Statistics request
     */
    union twe_statrequest {
        u_int32_t           ts_item;
        struct twe_qstat    ts_qstat;
    };
    
    #define TWEIO_STATS             _IOWR('T', 101, union twe_statrequest)
    
    /*
     * AEN listen
     */
    #define TWEIO_AEN_POLL          _IOR('T', 102, u_int16_t)
    #define TWEIO_AEN_WAIT          _IOR('T', 103, u_int16_t)
    
    /*
     * Controller parameter access
     */
    struct twe_paramcommand {
        u_int16_t   tp_table_id;
        u_int8_t    tp_param_id;
        void        *tp_data;
        u_int8_t    tp_size;
    };
    
    #define TWEIO_SET_PARAM         _IOW ('T', 104, struct twe_paramcommand)
    #define TWEIO_GET_PARAM         _IOW ('T', 105, struct twe_paramcommand)
    
    /*
     * Request a controller soft-reset
     */
    #define TWEIO_RESET             _IO  ('T', 106)
    
    /*
     * Request a drive addition or deletion
    */
   struct twe_drivecommand {
       int         td_unit;
   };
   
   #define TWEIO_ADD_UNIT          _IOW ('U', 107, int)
   #define TWEIO_DEL_UNIT          _IOW ('U', 108, int)

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