1/* $NetBSD$*/
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 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by the NetBSD
17 *	Foundation, Inc. and its contributors.
18 * 4. Neither the name of The NetBSD Foundation nor the names of its
19 *    contributors may be used to endorse or promote products derived
20 *    from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35
36/*
37 * NetBSD audio driver for ATI IXP-{150,200,...} audio driver hardware.
38 */
39
40#define DMA_DESC_CHAIN	255
41
42
43/* audio format structure describing our hardware capabilities */
44/* XXX min and max sample rates are for AD1888 codec XXX */
45#define AUIXP_NFORMATS 6
46
47
48#define AUIXP_MINRATE  7000
49#define AUIXP_MAXRATE 48000
50
51
52/* current AC'97 driver only supports SPDIF outputting channel 3&4 i.e. STEREO */
53static const struct audio_format auixp_formats[AUIXP_NFORMATS] = {
54	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 2, AUFMT_STEREO, 0, {7000, 48000}},
55	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 32, 32, 2, AUFMT_STEREO, 0, {7000, 48000}},
56	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 4, AUFMT_SURROUND4, 0, {7000, 48000}},
57	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 32, 32, 4, AUFMT_SURROUND4, 0, {7000, 48000}},
58	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 6, AUFMT_DOLBY_5_1, 0, {7000, 48000}},
59	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 32, 32, 6, AUFMT_DOLBY_5_1, 0, {7000, 48000}},
60};
61
62
63/* auixp structures; used to record alloced DMA space */
64struct auixp_dma {
65	/* bus mappings */
66	bus_dmamap_t		 map;
67	void *			 addr;
68	bus_dma_segment_t	 segs[1];
69	int			 nsegs;
70	size_t			 size;
71
72	/* audio feeder */
73	void			 (*intr)(void *);	/* function to call when there is space */
74	void			*intrarg;
75
76	/* status and setup bits */
77	int			 running;
78	uint32_t		 linkptr;
79	uint32_t		 dma_enable_bit;
80
81	/* linked list of all mapped area's */
82	SLIST_ENTRY(auixp_dma)	 dma_chain;
83};
84
85
86struct auixp_codec {
87	struct auixp_softc	*sc;
88
89	int			 present;
90	int			 codec_nr;
91
92	struct ac97_codec_if	*codec_if;
93	struct ac97_host_if	 host_if;
94	enum ac97_host_flags	 codec_flags;
95};
96
97
98struct auixp_softc {
99	struct device		sc_dev;
100	kmutex_t		sc_lock;
101	kmutex_t		sc_intr_lock;
102
103	/* card id */
104	int			type;
105	int			delay1, delay2;		/* nessisary? */
106
107	/* card properties */
108	int			has_4ch, has_6ch, is_fixed, has_spdif;
109
110	/* bus tags */
111	bus_space_tag_t		sc_iot;
112	bus_space_handle_t	sc_ioh;
113	bus_addr_t		sc_iob;
114	bus_size_t		sc_ios;
115
116	pcitag_t		sc_tag;
117	pci_chipset_tag_t	sc_pct;
118
119	bus_dma_tag_t		sc_dmat;
120
121	/* interrupts */
122	void			*sc_ih;
123
124	/* DMA business */
125	struct auixp_dma	*sc_output_dma;		/* contains dma-safe chain */
126	struct auixp_dma	*sc_input_dma;
127
128	/* list of allocated DMA pieces */
129	SLIST_HEAD(auixp_dma_list, auixp_dma) sc_dma_list;
130
131	/* audio formats supported */
132	struct audio_format sc_formats[AUIXP_NFORMATS];
133	struct audio_encoding_set *sc_encodings;
134
135	/* codecs */
136	int			sc_num_codecs;
137	struct auixp_codec	sc_codec[ATI_IXP_CODECS];
138	int			sc_codec_not_ready_bits;
139
140	/* last set audio parameters */
141	struct audio_params	sc_play_params;
142	struct audio_params	sc_rec_params;
143};
144
145
146