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 *
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
32 /* $FreeBSD: releng/7.4/sys/sparc64/sbus/lsi64854var.h 213957 2010-10-17 12:11:43Z marius $ */
33
34 struct lsi64854_softc {
35 device_t sc_dev;
36
37 struct resource *sc_res;
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
50 bus_dma_tag_t sc_parent_dmat;
51 bus_dma_tag_t sc_buffer_dmat;
52 int sc_datain;
53 size_t sc_dmasize;
54 caddr_t *sc_dmaaddr;
55 size_t *sc_dmalen;
56
57 void (*reset)(struct lsi64854_softc *);/* reset routine */
58 int (*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
59 int, size_t *); /* DMA setup */
60 int (*intr)(void *); /* interrupt handler */
61
62 u_int sc_dmactl;
63 int sc_dodrain;
64 };
65
66 #define L64854_GCSR(sc) bus_read_4((sc)->sc_res, L64854_REG_CSR)
67 #define L64854_SCSR(sc, csr) bus_write_4((sc)->sc_res, L64854_REG_CSR, csr)
68
69 /*
70 * DMA engine interface functions.
71 */
72 #define DMA_RESET(sc) (((sc)->reset)(sc))
73 #define DMA_INTR(sc) (((sc)->intr)(sc))
74 #define DMA_SETUP(sc, a, l, d, s) (((sc)->setup)(sc, a, l, d, s))
75 #define DMA_ISACTIVE(sc) ((sc)->sc_active)
76
77 #define DMA_ENINTR(sc) do { \
78 uint32_t csr = L64854_GCSR(sc); \
79 csr |= L64854_INT_EN; \
80 L64854_SCSR(sc, csr); \
81 } while (0)
82
83 #define DMA_ISINTR(sc) (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
84
85 #define DMA_GO(sc) do { \
86 uint32_t csr = L64854_GCSR(sc); \
87 csr |= D_EN_DMA; \
88 L64854_SCSR(sc, csr); \
89 sc->sc_active = 1; \
90 } while (0)
91
92 int lsi64854_attach(struct lsi64854_softc *);
93 int lsi64854_detach(struct lsi64854_softc *);
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