lsi64854var.h

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    1 /*      $NetBSD: lsi64854var.h,v 1.6 2005/02/04 02:10:36 perry Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Paul Kranenburg.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 /*      $FreeBSD$ */
   40 
   41 struct lsi64854_softc {
   42         device_t                sc_dev;
   43 
   44         struct resource         *sc_res;
   45         u_int                   sc_rev;         /* revision */
   46         int                     sc_burst;       /* max suported burst size */
   47 
   48         int                     sc_channel;
   49 #define L64854_CHANNEL_SCSI     1
   50 #define L64854_CHANNEL_ENET     2
   51 #define L64854_CHANNEL_PP       3
   52         void                    *sc_client;
   53 
   54         int                     sc_active;      /* DMA active? */
   55         bus_dmamap_t            sc_dmamap;      /* DMA map for bus_dma_* */
   56 
   57         bus_dma_tag_t           sc_parent_dmat;
   58         bus_dma_tag_t           sc_buffer_dmat;
   59         int                     sc_datain;
   60         size_t                  sc_dmasize;
   61         caddr_t                 *sc_dmaaddr;
   62         size_t                  *sc_dmalen;
   63 
   64         void    (*reset)(struct lsi64854_softc *);/* reset routine */
   65         int     (*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
   66                          int, size_t *);        /* DMA setup */
   67         int     (*intr)(void *);                /* interrupt handler */
   68 
   69         u_int                   sc_dmactl;
   70         int                     sc_dodrain;
   71 };
   72 
   73 #define L64854_GCSR(sc)         bus_read_4((sc)->sc_res, L64854_REG_CSR)
   74 #define L64854_SCSR(sc, csr)    bus_write_4((sc)->sc_res, L64854_REG_CSR, csr)
   75 
   76 /*
   77  * DMA engine interface functions.
   78  */
   79 #define DMA_RESET(sc)                   (((sc)->reset)(sc))
   80 #define DMA_INTR(sc)                    (((sc)->intr)(sc))
   81 #define DMA_SETUP(sc, a, l, d, s)       (((sc)->setup)(sc, a, l, d, s))
   82 #define DMA_ISACTIVE(sc)                ((sc)->sc_active)
   83 
   84 #define DMA_ENINTR(sc) do {                     \
   85         uint32_t csr = L64854_GCSR(sc);         \
   86         csr |= L64854_INT_EN;                   \
   87         L64854_SCSR(sc, csr);                   \
   88 } while (0)
   89 
   90 #define DMA_ISINTR(sc)  (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
   91 
   92 #define DMA_GO(sc) do {                         \
   93         uint32_t csr = L64854_GCSR(sc);         \
   94         csr |= D_EN_DMA;                        \
   95         L64854_SCSR(sc, csr);                   \
   96         sc->sc_active = 1;                      \
   97 } while (0)
   98 
   99 int     lsi64854_attach(struct lsi64854_softc *);
  100 int     lsi64854_detach(struct lsi64854_softc *);

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FreeBSD/Linux Kernel Cross Reference sys/sparc64/sbus/lsi64854var.h

FreeBSD/Linux Kernel Cross Reference
sys/sparc64/sbus/lsi64854var.h