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 */
46 struct 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 
68 struct 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 
80 struct 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