lsi64854var.h revision 1.1 
1/*	$NetBSD: lsi64854var.h,v 1.4 2001/03/29 02:58:39 petrov 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
39struct 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
104void	lsi64854_attach	__P((struct lsi64854_softc *));
105int	lsi64854_scsi_intr	__P((void *));
106int	lsi64854_enet_intr	__P((void *));
107int	lsi64854_pp_intr	__P((void *));
108