The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/lsi64854var.h

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    1 /*      $NetBSD: lsi64854var.h,v 1.5 2003/05/03 18:11:21 wiz 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 struct lsi64854_softc {
   40         struct device           sc_dev;         /* base device */
   41         bus_space_tag_t         sc_bustag;      /* bus tags */
   42         bus_dma_tag_t           sc_dmatag;
   43 
   44         bus_space_handle_t      sc_regs;        /* the registers */
   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         caddr_t                 sc_dvmaaddr;    /* DVMA cookie */
   57         size_t                  sc_dmasize;
   58         caddr_t                 *sc_dmaaddr;
   59         size_t                  *sc_dmalen;
   60 
   61         void    (*reset) __P((struct lsi64854_softc *));/* reset routine */
   62         int     (*setup) __P((struct lsi64854_softc *, caddr_t *, size_t *,
   63                               int, size_t *));  /* DMA setup */
   64         int     (*intr) __P((void *));          /* interrupt handler */
   65 
   66         int     (*sc_intrchain) __P((void *));  /* next handler in intr chain */
   67         void    *sc_intrchainarg;               /* arg for next intr handler */
   68 
   69         u_int                   sc_dmactl;
   70 };
   71 
   72 #define L64854_GCSR(sc) \
   73         (bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
   74 
   75 #define L64854_SCSR(sc, csr)    \
   76         bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
   77 
   78 
   79 /*
   80  * DMA engine interface functions.
   81  */
   82 #define DMA_RESET(sc)                   (((sc)->reset)(sc))
   83 #define DMA_INTR(sc)                    (((sc)->intr)(sc))
   84 #define DMA_SETUP(sc, a, l, d, s)       (((sc)->setup)(sc, a, l, d, s))
   85 
   86 #define DMA_ISACTIVE(sc)                ((sc)->sc_active)
   87 
   88 #define DMA_ENINTR(sc) do {                     \
   89         u_int32_t csr = L64854_GCSR(sc);        \
   90         csr |= L64854_INT_EN;                   \
   91         L64854_SCSR(sc, csr);                   \
   92 } while (0)
   93 
   94 #define DMA_ISINTR(sc)  (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
   95 
   96 #define DMA_GO(sc) do {                         \
   97         u_int32_t csr = L64854_GCSR(sc);        \
   98         csr |= D_EN_DMA;                        \
   99         L64854_SCSR(sc, csr);                   \
  100         sc->sc_active = 1;                      \
  101 } while (0)
  102 
  103 
  104 void    lsi64854_attach __P((struct lsi64854_softc *));
  105 int     lsi64854_scsi_intr      __P((void *));
  106 int     lsi64854_enet_intr      __P((void *));
  107 int     lsi64854_pp_intr        __P((void *));

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