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Annotation of sys/dev/ic/lsi64854var.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: lsi64854var.h,v 1.6 2007/02/28 18:48:35 miod Exp $    */
                      2: /*     $NetBSD: lsi64854var.h,v 1.4 2001/03/29 02:58:39 petrov Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1998 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Paul Kranenburg.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: struct lsi64854_softc {
                     41:        struct device           sc_dev;         /* base device */
                     42:        bus_space_tag_t         sc_bustag;      /* bus tags */
                     43:        bus_dma_tag_t           sc_dmatag;
                     44:
                     45:        bus_space_handle_t      sc_regs;        /* the registers */
                     46:        u_int                   sc_rev;         /* revision */
                     47:        int                     sc_burst;       /* max supported burst size */
                     48:
                     49:        int                     sc_channel;
                     50: #define L64854_CHANNEL_SCSI    1
                     51: #define L64854_CHANNEL_ENET    2
                     52: #define L64854_CHANNEL_PP      3
                     53:        void                    *sc_client;
                     54:
                     55:        int                     sc_active;      /* DMA active ? */
                     56:        bus_dmamap_t            sc_dmamap;      /* DMA map for bus_dma_* */
                     57:        caddr_t                 sc_dvmaaddr;    /* DVMA cookie */
                     58:        size_t                  sc_dmasize;
                     59:        caddr_t                 *sc_dmaaddr;
                     60:        size_t                  *sc_dmalen;
                     61:
                     62:        void    (*reset)(struct lsi64854_softc *);/* reset routine */
                     63:        int     (*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
                     64:                              int, size_t *);   /* dma setup */
                     65:        int     (*intr)(void *);                /* interrupt handler */
                     66:
                     67:        int     (*sc_intrchain)(void *);        /* next handler in intr chain */
                     68:        void    *sc_intrchainarg;               /* arg for next intr handler */
                     69:
                     70:        u_int                   sc_dmactl;
                     71: };
                     72:
                     73: #define L64854_GCSR(sc)        \
                     74:        (bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
                     75:
                     76: #define L64854_SCSR(sc, csr)   \
                     77:        bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
                     78:
                     79:
                     80: /*
                     81:  * DMA engine interface functions.
                     82:  */
                     83: #define DMA_RESET(sc)                  (((sc)->reset)(sc))
                     84: #define DMA_INTR(sc)                   (((sc)->intr)(sc))
                     85: #define DMA_SETUP(sc, a, l, d, s)      (((sc)->setup)(sc, a, l, d, s))
                     86:
                     87: #define DMA_ISACTIVE(sc)               ((sc)->sc_active)
                     88:
                     89: #define DMA_ENINTR(sc) do {                    \
                     90:        u_int32_t csr = L64854_GCSR(sc);        \
                     91:        csr |= L64854_INT_EN;                   \
                     92:        L64854_SCSR(sc, csr);                   \
                     93: } while (0)
                     94:
                     95: #define DMA_ISINTR(sc) (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
                     96:
                     97: #define DMA_GO(sc) do {                                \
                     98:        u_int32_t csr = L64854_GCSR(sc);        \
                     99:        csr |= D_EN_DMA;                        \
                    100:        L64854_SCSR(sc, csr);                   \
                    101:        sc->sc_active = 1;                      \
                    102: } while (0)
                    103:
                    104:
                    105: int    lsi64854_attach(struct lsi64854_softc *);
                    106: int    lsi64854_enet_intr(void *);