bshwvar.h revision 139749 
1/* $FreeBSD: head/sys/dev/ct/bshwvar.h 139749 2005-01-06 01:43:34Z imp $ */
2/*	$NecBSD: bshwvar.h,v 1.3.14.3 2001/06/21 04:07:37 honda Exp $	*/
3/*	$NetBSD$	*/
4
5/*-
6 * [NetBSD for NEC PC-98 series]
7 *  Copyright (c) 1994, 1995, 1996, 1997, 1998
8 *	NetBSD/pc98 porting staff. All rights reserved.
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. The name of the author may not be used to endorse or promote products
19 *     derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33#ifndef	_BSHWVAR_H_
34#define	_BSHWVAR_H_
35
36/*
37 * bshwvar.h
38 * NEC 55 compatible board specific definitions
39 */
40
41#define	BSHW_DEFAULT_CHIPCLK	20	/* 20MHz */
42#define	BSHW_DEFAULT_HOSTID	7
43
44struct bshw {
45#define	BSHW_SYNC_RELOAD	0x01
46#define	BSHW_SMFIFO		0x02
47#define	BSHW_DOUBLE_DMACHAN	0x04
48	u_int hw_flags;
49	u_int hw_sregaddr;
50
51	int ((*hw_dma_init)(struct ct_softc *));
52	void ((*hw_dma_start)(struct ct_softc *));
53	void ((*hw_dma_stop)(struct ct_softc *));
54};
55
56struct bshw_softc {
57	int sc_hostid;
58	int sc_irq;			/* irq */
59	int sc_drq;			/* drq */
60
61	/* dma transfer */
62	u_int8_t *sc_segaddr;
63	u_int8_t *sc_bufp;
64	int sc_seglen;
65	u_int sc_sdatalen;		/* SMIT */
66	u_int sc_edatalen;		/* SMIT */
67
68	/* private bounce */
69	u_int8_t *sc_bounce_phys;
70	u_int8_t *sc_bounce_addr;
71	u_int sc_bounce_size;
72	bus_addr_t sc_minphys;
73
74	/* io control */
75#define	BSHW_READ_INTERRUPT_DRIVEN	0x0001
76#define	BSHW_WRITE_INTERRUPT_DRIVEN	0x0002
77#define	BSHW_DMA_BLOCK			0x0010
78#define	BSHW_SMIT_BLOCK			0x0020
79	u_int sc_io_control;
80
81	/* hardware */
82	struct bshw *sc_hw;
83	void ((*sc_dmasync_before))(struct ct_softc *);
84	void ((*sc_dmasync_after))(struct ct_softc *);
85};
86
87void bshw_synch_setup(struct ct_softc *, struct targ_info *);
88void bshw_bus_reset(struct ct_softc *);
89int bshw_read_settings(struct ct_bus_access_handle *, struct bshw_softc *);
90int bshw_smit_xfer_start(struct ct_softc *);
91void bshw_smit_xfer_stop(struct ct_softc *);
92int bshw_dma_xfer_start(struct ct_softc *);
93void bshw_dma_xfer_stop(struct ct_softc *);
94
95extern struct dvcfg_hwsel bshw_hwsel;
96#endif	/* !_BSHWVAR_H_ */
97