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lsi64854var.h revision 1.2 
      1 /*	$NetBSD: lsi64854var.h,v 1.2 1998/08/31 11:13:10 pk 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 };
     70 
     71 #define L64854_GCSR(sc)	\
     72 	(bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
     73 
     74 #define L64854_SCSR(sc, csr)	\
     75 	bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
     76 
     77 
     78 /*
     79  * DMA engine interface functions.
     80  */
     81 #define DMA_RESET(sc)			(((sc)->reset)(sc))
     82 #define DMA_INTR(sc)			(((sc)->intr)(sc))
     83 #define DMA_SETUP(sc, a, l, d, s)	(((sc)->setup)(sc, a, l, d, s))
     84 
     85 #define DMA_ISACTIVE(sc)		((sc)->sc_active)
     86 
     87 #define DMA_ENINTR(sc) do {			\
     88 	u_int32_t csr = L64854_GCSR(sc);	\
     89 	csr |= L64854_INT_EN;			\
     90 	L64854_SCSR(sc, csr);			\
     91 } while (0)
     92 
     93 #define DMA_ISINTR(sc)	(L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
     94 
     95 #define DMA_GO(sc) do {				\
     96 	u_int32_t csr = L64854_GCSR(sc);	\
     97 	csr |= D_EN_DMA;			\
     98 	L64854_SCSR(sc, csr);			\
     99 	sc->sc_active = 1;			\
    100 } while (0)
    101 
    102 
    103 void	lsi64854_attach	__P((struct lsi64854_softc *));
    104 int	lsi64854_scsi_intr	__P((void *));
    105 int	lsi64854_enet_intr	__P((void *));
    106