1/*	$OpenBSD: ce4231var.h,v 1.11 2010/07/26 23:17:19 jakemsr Exp $	*/
2
3/*
4 * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Effort sponsored in part by the Defense Advanced Research Projects
29 * Agency (DARPA) and Air Force Research Laboratory, Air Force
30 * Materiel Command, USAF, under agreement number F30602-01-2-0537.
31 *
32 */
33
34/*
35 * Driver for CS4231/EBDMA based audio found in some sun4u systems
36 */
37
38/*
39 * List of device memory allocations (see ce4231_malloc/ce4231_free).
40 */
41struct cs_dma {
42	struct cs_dma *		next;
43	caddr_t			addr;
44	bus_dmamap_t		dmamap;
45	bus_dma_segment_t	segs[1];
46	int			nsegs;
47	size_t			size;
48};
49
50struct cs_volume {
51	u_int8_t	left;
52	u_int8_t	right;
53};
54
55/* DMA info container for each channel (play and record). */
56struct cs_chdma {
57	struct cs_dma	*cur_dma;
58	u_int32_t	blksz;
59	u_int32_t	count;
60	u_int32_t	segsz;
61	u_int32_t	lastaddr;
62};
63
64struct ce4231_softc {
65	struct	device sc_dev;		/* base device */
66	struct	intrhand sc_ih;		/* interrupt vectoring */
67	bus_dma_tag_t sc_dmatag;
68	bus_space_tag_t	sc_bustag;	/* CS4231/DMA register tag */
69	bus_space_handle_t sc_cshandle;	/* CS4231 handle */
70	bus_space_handle_t sc_cdmahandle; /* capture DMA handle */
71	bus_space_handle_t sc_pdmahandle; /* playback DMA handle */
72	bus_space_handle_t sc_auxhandle;  /* AUX handle */
73	int	sc_open;		/* already open? */
74
75	void	(*sc_rintr)(void *);	/* input completion intr handler */
76	void	*sc_rarg;		/* arg for sc_rintr() */
77	void	(*sc_pintr)(void *);	/* output completion intr handler */
78	void	*sc_parg;		/* arg for sc_pintr() */
79
80	int sc_format_bits;
81	int sc_speed_bits;
82	int sc_precision;
83	int sc_need_commit;
84	int sc_channels;
85	u_int sc_last_format;
86	u_int32_t	sc_burst;
87	struct cs_dma	*sc_dmas;	/* dma list */
88	struct cs_chdma	sc_pchdma;
89	struct cs_chdma	sc_rchdma;
90	void *sc_pih, *sc_cih;
91};
92