FreeBSD/Linux Kernel Cross Reference
sys/dev/sbus/qecvar.h

     /*      $NetBSD: qecvar.h,v 1.6 2003/05/03 18:11:39 wiz Exp $   */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Paul Kranenburg.
      *
     * 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.
     */
    
    struct qec_softc {
            struct device sc_dev;           /* us as a device */
            struct sbusdev sc_sd;           /* sbus device */
            bus_space_tag_t sc_bustag;      /* bus & DMA tags */
            bus_dma_tag_t   sc_dmatag;
            struct  openprom_range *sc_range;/* PROM ranges */
            int     sc_nrange;              /*             */
            struct  openprom_intr *sc_intr; /* interrupt info */
    
            bus_space_handle_t sc_regs;     /* QEC registers */
            int     sc_nchannels;           /* # of channels on board */
            int     sc_burst;               /* DVMA burst size in effect */
            caddr_t sc_buffer;              /* VA of the buffer we provide */
            int     sc_bufsiz;              /* Size of buffer */
    
            u_int   sc_msize;               /* QEC buffer offset per channel */
            u_int   sc_rsize;               /* QEC buffer size for receive */
    };
    
    struct qec_ring {
            /* Ring Descriptors */
            caddr_t         rb_membase;     /* Packet buffer: CPU address */
            bus_addr_t      rb_dmabase;     /* Packet buffer: DMA address */
            struct  qec_xd  *rb_txd;        /* Transmit descriptors */
            bus_addr_t      rb_txddma;      /* DMA address of same */
            struct  qec_xd  *rb_rxd;        /* Receive descriptors */
            bus_addr_t      rb_rxddma;      /* DMA address of same */
            caddr_t         rb_txbuf;       /* Transmit buffers */
            caddr_t         rb_rxbuf;       /* Receive buffers */
            int             rb_ntbuf;       /* # of transmit buffers */
            int             rb_nrbuf;       /* # of receive buffers */
    
            /* Ring Descriptor state */
            int     rb_tdhead, rb_tdtail;
            int     rb_rdtail;
            int     rb_td_nbusy;
    };
    
    void    qec_meminit __P((struct qec_ring *, unsigned int));

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