1/*	$NetBSD: lsi64854var.h,v 1.12 2008/04/28 20:23:50 martin Exp $ */
2
3/*-
4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 *
6 * Copyright (c) 1998 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Paul Kranenburg.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/*	$FreeBSD$ */
35
36struct lsi64854_softc {
37	device_t		sc_dev;
38
39	struct resource		*sc_res;
40	u_int			sc_rev;		/* revision */
41	int			sc_burst;	/* max suported burst size */
42
43	int			sc_channel;
44#define L64854_CHANNEL_SCSI	1
45#define L64854_CHANNEL_ENET	2
46#define L64854_CHANNEL_PP	3
47	void			*sc_client;
48
49	int			sc_active;	/* DMA active? */
50	bus_dmamap_t		sc_dmamap;	/* DMA map for bus_dma_* */
51
52	bus_dma_tag_t		sc_parent_dmat;
53	bus_dma_tag_t		sc_buffer_dmat;
54	bus_size_t		sc_maxdmasize;
55	int			sc_datain;
56	size_t			sc_dmasize;
57	void			**sc_dmaaddr;
58	size_t			*sc_dmalen;
59
60	void	(*reset)(struct lsi64854_softc *);/* reset routine */
61	int	(*setup)(struct lsi64854_softc *, void **, size_t *,
62		    int, size_t *);		/* DMA setup */
63	int	(*intr)(void *);		/* interrupt handler */
64
65	u_int 			sc_dmactl;
66	int			sc_dodrain;
67};
68
69#define L64854_GCSR(sc)		bus_read_4((sc)->sc_res, L64854_REG_CSR)
70#define L64854_SCSR(sc, csr)	bus_write_4((sc)->sc_res, L64854_REG_CSR, csr)
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#define DMA_ISACTIVE(sc)		((sc)->sc_active)
79
80#define DMA_ENINTR(sc) do {			\
81	uint32_t csr = L64854_GCSR(sc);		\
82	csr |= L64854_INT_EN;			\
83	L64854_SCSR(sc, csr);			\
84} while (/* CONSTCOND */0)
85
86#define DMA_ISINTR(sc)	(L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
87
88#define DMA_GO(sc) do {				\
89	uint32_t csr = L64854_GCSR(sc);		\
90	csr |= D_EN_DMA;			\
91	L64854_SCSR(sc, csr);			\
92	sc->sc_active = 1;			\
93} while (/* CONSTCOND */0)
94
95int	lsi64854_attach(struct lsi64854_softc *);
96int	lsi64854_detach(struct lsi64854_softc *);
97