lsi64854var.h revision 1.2 
1/*	$OpenBSD: lsi64854var.h,v 1.2 2001/08/25 14:58:32 jason 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 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *        This product includes software developed by the NetBSD
22 *        Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 *    contributors may be used to endorse or promote products derived
25 *    from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40struct lsi64854_softc {
41	struct device		sc_dev;		/* base device */
42	bus_space_tag_t		sc_bustag;	/* bus tags */
43	bus_dma_tag_t		sc_dmatag;
44
45	bus_space_handle_t	sc_regs;	/* the registers */
46	u_int			sc_rev;		/* revision */
47	int			sc_burst;	/* max suported burst size */
48
49	int			sc_channel;
50#define L64854_CHANNEL_SCSI	1
51#define L64854_CHANNEL_ENET	2
52#define L64854_CHANNEL_PP	3
53	void			*sc_client;
54
55	int			sc_active;	/* DMA active ? */
56	bus_dmamap_t		sc_dmamap;	/* DMA map for bus_dma_* */
57	caddr_t			sc_dvmaaddr;	/* DVMA cookie */
58	size_t			sc_dmasize;
59	caddr_t			*sc_dmaaddr;
60	size_t			*sc_dmalen;
61
62	void	(*reset) __P((struct lsi64854_softc *));/* reset routine */
63	int	(*setup) __P((struct lsi64854_softc *, caddr_t *, size_t *,
64			      int, size_t *));	/* dma setup */
65	int	(*intr) __P((void *));		/* interrupt handler */
66
67	int	(*sc_intrchain) __P((void *));	/* next handler in intr chain */
68	void	*sc_intrchainarg;		/* arg for next intr handler */
69
70	u_int 			sc_dmactl;
71};
72
73#define L64854_GCSR(sc)	\
74	(bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
75
76#define L64854_SCSR(sc, csr)	\
77	bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
78
79
80/*
81 * DMA engine interface functions.
82 */
83#define DMA_RESET(sc)			(((sc)->reset)(sc))
84#define DMA_INTR(sc)			(((sc)->intr)(sc))
85#define DMA_SETUP(sc, a, l, d, s)	(((sc)->setup)(sc, a, l, d, s))
86
87#define DMA_ISACTIVE(sc)		((sc)->sc_active)
88
89#define DMA_ENINTR(sc) do {			\
90	u_int32_t csr = L64854_GCSR(sc);	\
91	csr |= L64854_INT_EN;			\
92	L64854_SCSR(sc, csr);			\
93} while (0)
94
95#define DMA_ISINTR(sc)	(L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
96
97#define DMA_GO(sc) do {				\
98	u_int32_t csr = L64854_GCSR(sc);	\
99	csr |= D_EN_DMA;			\
100	L64854_SCSR(sc, csr);			\
101	sc->sc_active = 1;			\
102} while (0)
103
104
105void	lsi64854_attach	__P((struct lsi64854_softc *));
106int	lsi64854_scsi_intr	__P((void *));
107int	lsi64854_enet_intr	__P((void *));
108int	lsi64854_pp_intr	__P((void *));
109