lsi64854var.h revision 155089 
1/*	$NetBSD: lsi64854var.h,v 1.6 2005/02/04 02:10:36 perry 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/*	$FreeBSD: head/sys/sparc64/sbus/lsi64854var.h 155089 2006-01-31 12:50:02Z marius $ */
40
41struct lsi64854_softc {
42	device_t		sc_dev;
43
44	int			sc_rid;
45	struct resource		*sc_res;
46	bus_space_handle_t	sc_regh;
47	bus_space_tag_t		sc_regt;
48	u_int			sc_rev;		/* revision */
49	int			sc_burst;	/* max suported burst size */
50
51	int			sc_channel;
52#define L64854_CHANNEL_SCSI	1
53#define L64854_CHANNEL_ENET	2
54#define L64854_CHANNEL_PP	3
55	void			*sc_client;
56
57	int			sc_active;	/* DMA active ? */
58	bus_dmamap_t		sc_dmamap;	/* DMA map for bus_dma_* */
59
60	bus_dma_tag_t		sc_parent_dmat;
61	bus_dma_tag_t		sc_buffer_dmat;
62	int			sc_datain;
63	size_t			sc_dmasize;
64	caddr_t			*sc_dmaaddr;
65	size_t			*sc_dmalen;
66
67	void	(*reset)(struct lsi64854_softc *);/* reset routine */
68	int	(*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
69			 int, size_t *);	/* DMA setup */
70	int	(*intr)(void *);		/* interrupt handler */
71
72	u_int 			sc_dmactl;
73	int			sc_dodrain;
74};
75
76#define L64854_GCSR(sc)	\
77	(bus_space_read_4((sc)->sc_regt, (sc)->sc_regh, L64854_REG_CSR))
78
79#define L64854_SCSR(sc, csr)	\
80	bus_space_write_4((sc)->sc_regt, (sc)->sc_regh, L64854_REG_CSR, csr)
81
82
83/*
84 * DMA engine interface functions.
85 */
86#define DMA_RESET(sc)			(((sc)->reset)(sc))
87#define DMA_INTR(sc)			(((sc)->intr)(sc))
88#define DMA_SETUP(sc, a, l, d, s)	(((sc)->setup)(sc, a, l, d, s))
89
90#define DMA_ISACTIVE(sc)		((sc)->sc_active)
91
92#define DMA_ENINTR(sc) do {			\
93	uint32_t csr = L64854_GCSR(sc);		\
94	csr |= L64854_INT_EN;			\
95	L64854_SCSR(sc, csr);			\
96} while (0)
97
98#define DMA_ISINTR(sc)	(L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
99
100#define DMA_GO(sc) do {				\
101	uint32_t csr = L64854_GCSR(sc);		\
102	csr |= D_EN_DMA;			\
103	L64854_SCSR(sc, csr);			\
104	sc->sc_active = 1;			\
105} while (0)
106
107
108int	lsi64854_attach(struct lsi64854_softc *);
109int	lsi64854_detach(struct lsi64854_softc *);
110