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      1 /*	$NetBSD: lsi64854var.h,v 1.13 2019/12/27 09:22:20 msaitoh 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 supported 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 *);
    101