1/*	$NetBSD: dmacvar.h,v 1.2 2008/04/28 20:23:31 martin Exp $	*/
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
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/* DO NOT REORDER */
33enum dmac_channel {
34	D_CH0_VIF0 = 0,
35	D_CH1_VIF1,
36	D_CH2_GIF,
37	D_CH3_FROMIPU,
38	D_CH4_TOIPU,
39	D_CH5_SIF0,
40	D_CH6_SIF1,
41	D_CH7_SIF2,
42	D_CH8_FROMSPR,
43	D_CH9_TOSPR
44};
45
46extern u_int32_t __dmac_enabled_channel;
47
48void	dmac_init(void);
49
50/* start/stop */
51void	dmac_start_channel(enum dmac_channel);
52void	dmac_stop_channel(enum dmac_channel);
53void	dmac_sync_buffer(void);
54
55/* interrupt */
56int	dmac_intr(u_int32_t);
57void	*dmac_intr_establish(enum dmac_channel, int, int (*)(void *), void *);
58void	dmac_intr_disestablish(void *);
59void	dmac_intr_disable(enum dmac_channel);
60void	dmac_intr_enable(enum dmac_channel);
61void	dmac_update_mask(u_int32_t);
62
63/* polling */
64void	dmac_cpc_set(enum dmac_channel);
65void	dmac_cpc_clear(enum dmac_channel);
66void	dmac_cpc_poll(void);
67void	dmac_bus_poll(enum dmac_channel);	/* slow */
68
69/* misc */
70void	dmac_chcr_write(enum dmac_channel, u_int32_t);
71