FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/umidivar.h

     /*      $NetBSD: umidivar.h,v 1.7 2003/12/05 06:05:53 gson Exp $        */
     /*
      * Copyright (c) 2001 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Takuya SHIOZAKI (tshiozak@NetBSD.org).
      *
      * 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * 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.
     */
    
    /* pending MUX-MIDI packet */
    typedef enum {
            PS_EXCL_0=-2,   /* put, and next state is PS_EXCL_0 */
            PS_END=-1,      /* put, and next state is PS_INITIAL */
            PS_INITIAL=0,   /* 0>= : not put, and state is keeped */
            PS_NORMAL_1OF3=1,
            PS_NORMAL_2OF3=2,
            PS_NORMAL_1OF2=3,
            PS_EXCL_1=4,
            PS_EXCL_2=5
    } packet_state_t;
    
    #define UMIDI_PACKET_SIZE 4
    struct umidi_packet {
            char            buffer[UMIDI_PACKET_SIZE];
            packet_state_t  state;
    };
    
    /*
     * hierarchie
     *
     * <-- parent          child -->
     *
     * umidi(sc) -> endpoint -> jack   <- (dynamically assignable) - mididev
     *         ^     |    ^     |
     *         +-----+    +-----+
     */
    
    /* midi device */
    struct umidi_mididev {
            struct umidi_softc      *sc;
            struct device           *mdev;
            /* */
            struct umidi_jack       *in_jack;
            struct umidi_jack       *out_jack;
            /* */
            int                     opened;
            int                     flags;
    };
    
    /* Jack Information */
    struct umidi_jack {
            struct umidi_endpoint   *endpoint;
            /* */
            int                     cable_number;
            struct umidi_packet     packet;
            void                    *arg;
            int                     binded;
            int                     opened;
            union {
                    struct {
                            void                    (*intr)(void *);
                            LIST_ENTRY(umidi_jack)  queue_entry;
                    } out;
                    struct {
                            void                    (*intr)(void *, int);
                    } in;
            } u;
    };
    
    #define UMIDI_MAX_EPJACKS       16
    /* endpoint data */
   struct umidi_endpoint {
           struct umidi_softc      *sc;
           /* */
           int                     addr;
           usbd_pipe_handle        pipe;
           usbd_xfer_handle        xfer;
           unsigned char           *buffer;
           int                     num_open;
           int                     num_jacks;
           struct umidi_jack       *jacks[UMIDI_MAX_EPJACKS];
           LIST_HEAD(, umidi_jack) queue_head;
           struct umidi_jack       *queue_tail;
   };
   
   /* software context */
   struct umidi_softc {
           USBBASEDEVICE           sc_dev;
           usbd_device_handle      sc_udev;
           usbd_interface_handle   sc_iface;
           struct umidi_quirk      *sc_quirk;
   
           int                     sc_dying;
   
           int                     sc_out_num_jacks;
           struct umidi_jack       *sc_out_jacks;
           int                     sc_in_num_jacks;
           struct umidi_jack       *sc_in_jacks;
           struct umidi_jack       *sc_jacks;
   
           int                     sc_num_mididevs;
           struct umidi_mididev    *sc_mididevs;
   
           int                     sc_out_num_endpoints;
           struct umidi_endpoint   *sc_out_ep;
           int                     sc_in_num_endpoints;
           struct umidi_endpoint   *sc_in_ep;
           struct umidi_endpoint   *sc_endpoints;
   };

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