Annotation of sys/dev/ic/lsi64854var.h, Revision 1.1.1.1
1.1 nbrk 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 *);
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