1 /* $OpenBSD: lsi64854var.h,v 1.6 2007/02/28 18:48:35 miod 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
40 struct 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 supported 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)(struct lsi64854_softc *);/* reset routine */
63 int (*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
64 int, size_t *); /* dma setup */
65 int (*intr)(void *); /* interrupt handler */
66
67 int (*sc_intrchain)(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
105 int lsi64854_attach(struct lsi64854_softc *);
106 int lsi64854_enet_intr(void *);