ce4231var.h revision 1.2 
1/*	$OpenBSD: ce4231var.h,v 1.2 2001/10/02 00:26:24 jason 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 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Jason L. Wright
18 * 4. 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
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
55struct ce4231_softc {
56	struct	device sc_dev;		/* base device */
57	struct	sbusdev sc_sd;		/* sbus device */
58	struct	intrhand sc_ih;		/* interrupt vectoring */
59	bus_dma_tag_t sc_dmatag;
60	bus_space_tag_t	sc_bustag;	/* CS4231/DMA register tag */
61	bus_space_handle_t sc_cshandle;	/* CS4231 handle */
62	bus_space_handle_t sc_cdmahandle; /* capture DMA handle */
63	bus_space_handle_t sc_pdmahandle; /* playback DMA handle */
64	bus_space_handle_t sc_auxhandle;  /* AUX handle */
65	struct	evcnt sc_intrcnt;	/* statistics */
66	int	sc_open;		/* already open? */
67	int	sc_locked;		/* locked? */
68
69	void	(*sc_rintr)(void*);	/* input completion intr handler */
70	void *	sc_rarg;		/* arg for sc_rintr() */
71	void	(*sc_pintr)(void*);	/* output completion intr handler */
72	void *	sc_parg;		/* arg for sc_pintr() */
73
74	char		sc_mute[9];	/* which devs are muted */
75	u_int8_t	sc_out_port;	/* output port */
76	struct	cs_volume sc_volume[9];	/* software volume */
77
78	int sc_format_bits;
79	int sc_speed_bits;
80	int sc_precision;
81	int sc_need_commit;
82	int sc_channels;
83	u_int sc_last_format;
84	u_int32_t	sc_blksz;
85	u_int32_t	sc_playcnt;
86	u_int32_t	sc_playsegsz;
87	u_int32_t	sc_burst;
88	u_int32_t	sc_lastaddr;
89	struct cs_dma	*sc_dmas;	/* dma list */
90	struct cs_dma	*sc_nowplaying;
91};
92