1 /* $NetBSD: lsi64854var.h,v 1.5 2003/05/03 18:11:21 wiz 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 struct lsi64854_softc {
40 struct device sc_dev; /* base device */
41 bus_space_tag_t sc_bustag; /* bus tags */
42 bus_dma_tag_t sc_dmatag;
43
44 bus_space_handle_t sc_regs; /* the registers */
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 caddr_t sc_dvmaaddr; /* DVMA cookie */
57 size_t sc_dmasize;
58 caddr_t *sc_dmaaddr;
59 size_t *sc_dmalen;
60
61 void (*reset) __P((struct lsi64854_softc *));/* reset routine */
62 int (*setup) __P((struct lsi64854_softc *, caddr_t *, size_t *,
63 int, size_t *)); /* DMA setup */
64 int (*intr) __P((void *)); /* interrupt handler */
65
66 int (*sc_intrchain) __P((void *)); /* next handler in intr chain */
67 void *sc_intrchainarg; /* arg for next intr handler */
68
69 u_int sc_dmactl;
70 };
71
72 #define L64854_GCSR(sc) \
73 (bus_space_read_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR))
74
75 #define L64854_SCSR(sc, csr) \
76 bus_space_write_4((sc)->sc_bustag, (sc)->sc_regs, L64854_REG_CSR, csr)
77
78
79 /*
80 * DMA engine interface functions.
81 */
82 #define DMA_RESET(sc) (((sc)->reset)(sc))
83 #define DMA_INTR(sc) (((sc)->intr)(sc))
84 #define DMA_SETUP(sc, a, l, d, s) (((sc)->setup)(sc, a, l, d, s))
85
86 #define DMA_ISACTIVE(sc) ((sc)->sc_active)
87
88 #define DMA_ENINTR(sc) do { \
89 u_int32_t csr = L64854_GCSR(sc); \
90 csr |= L64854_INT_EN; \
91 L64854_SCSR(sc, csr); \
92 } while (0)
93
94 #define DMA_ISINTR(sc) (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
95
96 #define DMA_GO(sc) do { \
97 u_int32_t csr = L64854_GCSR(sc); \
98 csr |= D_EN_DMA; \
99 L64854_SCSR(sc, csr); \
100 sc->sc_active = 1; \
101 } while (0)
102
103
104 void lsi64854_attach __P((struct lsi64854_softc *));
105 int lsi64854_scsi_intr __P((void *));
106 int lsi64854_enet_intr __P((void *));
107 int lsi64854_pp_intr __P((void *));
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