1/*	$NetBSD: lsi64854var.h,v 1.11 2008/04/13 04:55:53 tsutsui 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32struct lsi64854_softc {
33	device_t		sc_dev;		/* base device */
34	bus_space_tag_t		sc_bustag;	/* bus tags */
35	bus_dma_tag_t		sc_dmatag;
36
37	bus_space_handle_t	sc_regs;	/* the registers */
38	u_int			sc_rev;		/* revision */
39	int			sc_burst;	/* max suported burst size */
40
41	int			sc_channel;
42#define L64854_CHANNEL_SCSI	1
43#define L64854_CHANNEL_ENET	2
44#define L64854_CHANNEL_PP	3
45	void			*sc_client;
46
47	int			sc_active;	/* DMA active ? */
48	bus_dmamap_t		sc_dmamap;	/* DMA map for bus_dma_* */
49	void *			sc_dvmaaddr;	/* DVMA cookie */
50	size_t			sc_dmasize;
51	uint8_t			**sc_dmaaddr;
52	size_t			*sc_dmalen;
53
54	void	(*reset)(struct lsi64854_softc *);/* reset routine */
55	int	(*setup)(struct lsi64854_softc *, uint8_t **, size_t *,
56			      int, size_t *);	/* DMA setup */
57	int	(*intr)(void *);		/* interrupt handler */
58
59	int	(*sc_intrchain)(void *);	/* next handler in intr chain */
60	void	*sc_intrchainarg;		/* arg for next intr handler */
61
62	u_int 			sc_dmactl;
63};
64
65#define L64854_GCSR(sc)	\
66	(bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
67
68#define L64854_SCSR(sc, csr)	\
69	bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
70
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
79#define DMA_ISACTIVE(sc)		((sc)->sc_active)
80
81#define DMA_ENINTR(sc) do {			\
82	uint32_t _csr = L64854_GCSR(sc);	\
83	_csr |= L64854_INT_EN;			\
84	L64854_SCSR(sc, _csr);			\
85} while (/*CONSTCOND*/0)
86
87#define DMA_ISINTR(sc)	(L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
88
89#define DMA_GO(sc) do {				\
90	uint32_t _csr = L64854_GCSR(sc);	\
91	_csr |= D_EN_DMA;			\
92	L64854_SCSR(sc, _csr);			\
93	sc->sc_active = 1;			\
94} while (0)
95
96
97void	lsi64854_attach(struct lsi64854_softc *);
98int	lsi64854_scsi_intr(void *);
99int	lsi64854_enet_intr(void *);
100int	lsi64854_pp_intr(void *);
101