1/*	$NetBSD$	*/
2
3/*-
4 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Paul Kranenburg.
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#ifndef _DEV_IC_CS4231VAR_H_
33#define _DEV_IC_CS4231VAR_H_
34
35#define AUDIOCS_PROM_NAME	"SUNW,CS4231"
36
37/*
38 * List of device memory allocations (see cs4231_malloc/cs4231_free).
39 */
40struct cs_dma {
41	struct	cs_dma	*next;
42	void *		addr;
43	bus_dmamap_t	dmamap;
44	bus_dma_segment_t segs[1];
45	int		nsegs;
46	size_t		size;
47};
48
49
50/*
51 * DMA transfer to/from CS4231.
52 */
53struct cs_transfer {
54	int t_active;		/* this transfer is currently active */
55	struct cs_dma *t_dma;	/* dma memory to transfer from/to */
56	vsize_t t_segsz;	/* size of the segment */
57	vsize_t t_blksz;	/* call audio(9) after this many bytes */
58	vsize_t t_cnt;		/* how far are we into the segment */
59
60	void (*t_intr)(void*);	/* audio(9) callback */
61	void *t_arg;
62
63	const char *t_name;	/* for error/debug messages */
64
65	struct evcnt t_intrcnt;
66	struct evcnt t_ierrcnt;
67};
68
69
70/*
71 * Software state, per CS4231 audio chip.
72 */
73struct cs4231_softc {
74	struct ad1848_softc sc_ad1848;	/* base device */
75
76	bus_space_tag_t	sc_bustag;
77	bus_dma_tag_t sc_dmatag;
78
79	struct cs_dma *sc_dmas;		/* allocated dma resources */
80
81	struct evcnt sc_intrcnt;	/* parent counter */
82
83	struct cs_transfer sc_playback;
84	struct cs_transfer sc_capture;
85};
86
87
88/*
89 * Bus independent code shared by sbus and ebus attachments.
90 */
91void	cs4231_common_attach(struct cs4231_softc *, device_t,
92			     bus_space_handle_t);
93int	cs4231_transfer_init(struct cs4231_softc *, struct cs_transfer *,
94			     bus_addr_t *, bus_size_t *,
95			     void *, void *, int, void (*)(void *), void *);
96void	cs4231_transfer_advance(struct cs_transfer *,
97				bus_addr_t *, bus_size_t *);
98
99
100/*
101 * Bus independent audio(9) methods.
102 */
103int	cs4231_open(void *, int);
104void	cs4231_close(void *);
105int	cs4231_getdev(void *, struct audio_device *);
106int	cs4231_set_port(void *, mixer_ctrl_t *);
107int	cs4231_get_port(void *, mixer_ctrl_t *);
108int	cs4231_query_devinfo(void *, mixer_devinfo_t *);
109int	cs4231_get_props(void *);
110
111void	*cs4231_malloc(void *, int, size_t);
112void	cs4231_free(void *, void *, size_t);
113
114#endif /* _DEV_IC_CS4231VAR_H_ */
115