lsi64854var.h revision 1.7 
1/*	$OpenBSD: lsi64854var.h,v 1.7 2008/06/26 05:42:15 ray 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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33struct lsi64854_softc {
34	struct device		sc_dev;		/* base device */
35	bus_space_tag_t		sc_bustag;	/* bus tags */
36	bus_dma_tag_t		sc_dmatag;
37
38	bus_space_handle_t	sc_regs;	/* the registers */
39	u_int			sc_rev;		/* revision */
40	int			sc_burst;	/* max supported burst size */
41
42	int			sc_channel;
43#define L64854_CHANNEL_SCSI	1
44#define L64854_CHANNEL_ENET	2
45#define L64854_CHANNEL_PP	3
46	void			*sc_client;
47
48	int			sc_active;	/* DMA active ? */
49	bus_dmamap_t		sc_dmamap;	/* DMA map for bus_dma_* */
50	caddr_t			sc_dvmaaddr;	/* DVMA cookie */
51	size_t			sc_dmasize;
52	caddr_t			*sc_dmaaddr;
53	size_t			*sc_dmalen;
54
55	void	(*reset)(struct lsi64854_softc *);/* reset routine */
56	int	(*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
57			      int, size_t *);	/* dma setup */
58	int	(*intr)(void *);		/* interrupt handler */
59
60	int	(*sc_intrchain)(void *);	/* next handler in intr chain */
61	void	*sc_intrchainarg;		/* arg for next intr handler */
62
63	u_int 			sc_dmactl;
64};
65
66#define L64854_GCSR(sc)	\
67	(bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
68
69#define L64854_SCSR(sc, csr)	\
70	bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
71
72
73/*
74 * DMA engine interface functions.
75 */
76#define DMA_RESET(sc)			(((sc)->reset)(sc))
77#define DMA_INTR(sc)			(((sc)->intr)(sc))
78#define DMA_SETUP(sc, a, l, d, s)	(((sc)->setup)(sc, a, l, d, s))
79
80#define DMA_ISACTIVE(sc)		((sc)->sc_active)
81
82#define DMA_ENINTR(sc) do {			\
83	u_int32_t csr = L64854_GCSR(sc);	\
84	csr |= L64854_INT_EN;			\
85	L64854_SCSR(sc, csr);			\
86} while (0)
87
88#define DMA_ISINTR(sc)	(L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
89
90#define DMA_GO(sc) do {				\
91	u_int32_t csr = L64854_GCSR(sc);	\
92	csr |= D_EN_DMA;			\
93	L64854_SCSR(sc, csr);			\
94	sc->sc_active = 1;			\
95} while (0)
96
97
98int	lsi64854_attach(struct lsi64854_softc *);
99int	lsi64854_enet_intr(void *);
100