sys/dev/ic/lsi64854var.h

   1 /*      $NetBSD: lsi64854var.h,v 1.11 2008/04/13 04:55:53 tsutsui 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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 struct lsi64854_softc {
  33         device_t                sc_dev;         /* base device */
  34         bus_space_tag_t         sc_bustag;      /* bus tags */
  35         bus_dma_tag_t           sc_dmatag;
  36
  37         bus_space_handle_t      sc_regs;        /* the registers */
  38         u_int                   sc_rev;         /* revision */
  39         int                     sc_burst;       /* max suported burst size */
  40
  41         int                     sc_channel;
  42 #define L64854_CHANNEL_SCSI     1
  43 #define L64854_CHANNEL_ENET     2
  44 #define L64854_CHANNEL_PP       3
  45         void                    *sc_client;
  46
  47         int                     sc_active;      /* DMA active ? */
  48         bus_dmamap_t            sc_dmamap;      /* DMA map for bus_dma_* */
  49         void *                  sc_dvmaaddr;    /* DVMA cookie */
  50         size_t                  sc_dmasize;
  51         uint8_t                 **sc_dmaaddr;
  52         size_t                  *sc_dmalen;
  53
  54         void    (*reset)(struct lsi64854_softc *);/* reset routine */
  55         int     (*setup)(struct lsi64854_softc *, uint8_t **, size_t *,
  56                               int, size_t *);   /* DMA setup */
  57         int     (*intr)(void *);                /* interrupt handler */
  58
  59         int     (*sc_intrchain)(void *);        /* next handler in intr chain */
  60         void    *sc_intrchainarg;               /* arg for next intr handler */
  61
  62         u_int                   sc_dmactl;
  63 };
  64
  65 #define L64854_GCSR(sc) \
  66         (bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
  67
  68 #define L64854_SCSR(sc, csr)    \
  69         bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
  70
  71
  72 /*
  73  * DMA engine interface functions.
  74  */
  75 #define DMA_RESET(sc)                   (((sc)->reset)(sc))
  76 #define DMA_INTR(sc)                    (((sc)->intr)(sc))
  77 #define DMA_SETUP(sc, a, l, d, s)       (((sc)->setup)(sc, a, l, d, s))
  78
  79 #define DMA_ISACTIVE(sc)                ((sc)->sc_active)
  80
  81 #define DMA_ENINTR(sc) do {                     \
  82         uint32_t _csr = L64854_GCSR(sc);        \
  83         _csr |= L64854_INT_EN;                  \
  84         L64854_SCSR(sc, _csr);                  \
  85 } while (/*CONSTCOND*/0)
  86
  87 #define DMA_ISINTR(sc)  (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
  88
  89 #define DMA_GO(sc) do {                         \
  90         uint32_t _csr = L64854_GCSR(sc);        \
  91         _csr |= D_EN_DMA;                       \
  92         L64854_SCSR(sc, _csr);                  \
  93         sc->sc_active = 1;                      \
  94 } while (0)
  95
  96
  97 void    lsi64854_attach(struct lsi64854_softc *);
  98 int     lsi64854_scsi_intr(void *);
  99 int     lsi64854_enet_intr(void *);
 100 int     lsi64854_pp_intr(void *);