lsi64854var.h revision 182876 
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 182876 2008-09-08 20:20:44Z marius $ */
40
41struct lsi64854_softc {
42	device_t		sc_dev;
43
44	struct resource		*sc_res;
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
57	bus_dma_tag_t		sc_parent_dmat;
58	bus_dma_tag_t		sc_buffer_dmat;
59	int			sc_datain;
60	size_t			sc_dmasize;
61	caddr_t			*sc_dmaaddr;
62	size_t			*sc_dmalen;
63
64	void	(*reset)(struct lsi64854_softc *);/* reset routine */
65	int	(*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
66			 int, size_t *);	/* DMA setup */
67	int	(*intr)(void *);		/* interrupt handler */
68
69	u_int 			sc_dmactl;
70	int			sc_dodrain;
71};
72
73#define L64854_GCSR(sc)		bus_read_4((sc)->sc_res, L64854_REG_CSR)
74#define L64854_SCSR(sc, csr)	bus_write_4((sc)->sc_res, L64854_REG_CSR, csr)
75
76/*
77 * DMA engine interface functions.
78 */
79#define DMA_RESET(sc)			(((sc)->reset)(sc))
80#define DMA_INTR(sc)			(((sc)->intr)(sc))
81#define DMA_SETUP(sc, a, l, d, s)	(((sc)->setup)(sc, a, l, d, s))
82#define DMA_ISACTIVE(sc)		((sc)->sc_active)
83
84#define DMA_ENINTR(sc) do {			\
85	uint32_t csr = L64854_GCSR(sc);		\
86	csr |= L64854_INT_EN;			\
87	L64854_SCSR(sc, csr);			\
88} while (0)
89
90#define DMA_ISINTR(sc)	(L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
91
92#define DMA_GO(sc) do {				\
93	uint32_t csr = L64854_GCSR(sc);		\
94	csr |= D_EN_DMA;			\
95	L64854_SCSR(sc, csr);			\
96	sc->sc_active = 1;			\
97} while (0)
98
99int	lsi64854_attach(struct lsi64854_softc *);
100int	lsi64854_detach(struct lsi64854_softc *);
101