1/* $NetBSD: auixpvar.h,v 1.11 2021/08/20 20:25:28 andvar Exp $*/
2
3/*
4 * Copyright (c) 2004, 2005 Reinoud Zandijk <reinoud@netbsd.org>
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. The name of the author may not be used to endorse or promote products
13 *    derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28
29/*
30 * NetBSD audio driver for ATI IXP-{150,200,...} audio driver hardware.
31 */
32
33#define DMA_DESC_CHAIN	255
34
35
36/* audio format structure describing our hardware capabilities */
37/* XXX min and max sample rates are for AD1888 codec XXX */
38#define AUIXP_NFORMATS 3
39
40
41#define AUIXP_MINRATE  7000
42#define AUIXP_MAXRATE 48000
43
44
45/* auixp structures; used to record alloced DMA space */
46struct auixp_dma {
47	/* bus mappings */
48	bus_dmamap_t		 map;
49	void *			 addr;
50	bus_dma_segment_t	 segs[1];
51	int			 nsegs;
52	size_t			 size;
53
54	/* audio feeder */
55	void			 (*intr)(void *);	/* function to call when there is space */
56	void			*intrarg;
57
58	/* status and setup bits */
59	int			 running;
60	uint32_t		 linkptr;
61	uint32_t		 dma_enable_bit;
62
63	/* linked list of all mapped area's */
64	SLIST_ENTRY(auixp_dma)	 dma_chain;
65};
66
67
68struct auixp_codec {
69	struct auixp_softc	*sc;
70
71	int			 present;
72	int			 codec_nr;
73
74	struct ac97_codec_if	*codec_if;
75	struct ac97_host_if	 host_if;
76	enum ac97_host_flags	 codec_flags;
77};
78
79
80struct auixp_softc {
81	device_t		sc_dev;
82	kmutex_t		sc_lock;
83	kmutex_t		sc_intr_lock;
84
85	/* card id */
86	int			type;
87	int			delay1, delay2;		/* necessary? */
88
89	/* card properties */
90	int			has_4ch, has_6ch, is_fixed, has_spdif;
91
92	/* bus tags */
93	bus_space_tag_t		sc_iot;
94	bus_space_handle_t	sc_ioh;
95	bus_addr_t		sc_iob;
96	bus_size_t		sc_ios;
97
98	pcitag_t		sc_tag;
99	pci_chipset_tag_t	sc_pct;
100
101	bus_dma_tag_t		sc_dmat;
102
103	/* interrupts */
104	void			*sc_ih;
105
106	/* DMA business */
107	struct auixp_dma	*sc_output_dma;		/* contains dma-safe chain */
108	struct auixp_dma	*sc_input_dma;
109
110	/* list of allocated DMA pieces */
111	SLIST_HEAD(auixp_dma_list, auixp_dma) sc_dma_list;
112
113	/* audio formats supported */
114	struct audio_format sc_formats[AUIXP_NFORMATS];
115
116	/* codecs */
117	int			sc_num_codecs;
118	struct auixp_codec	sc_codec[ATI_IXP_CODECS];
119	int			sc_codec_not_ready_bits;
120
121	/* last set audio parameters */
122	struct audio_params	sc_play_params;
123	struct audio_params	sc_rec_params;
124};
125
126
127