1 /* $OpenBSD: cs4231var.h,v 1.9 2006/06/02 20:00:56 miod 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Effort sponsored in part by the Defense Advanced Research Projects
29 * Agency (DARPA) and Air Force Research Laboratory, Air Force
30 * Materiel Command, USAF, under agreement number F30602-01-2-0537.
31 *
32 */
33
34 /*
35 * Driver for CS4231 based audio found in some sun4m systems
36 */
37
38 /*
39 * List of device memory allocations (see cs4231_malloc/cs4231_free).
40 */
41 struct 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
50 struct cs_volume {
51 u_int8_t left;
52 u_int8_t right;
53 };
54
55 struct cs_channel {
56 void (*cs_intr)(void *); /* interrupt handler */
57 void *cs_arg; /* interrupt arg */
58 struct cs_dma *cs_curdma; /* current dma block */
59 u_int32_t cs_cnt; /* current block count */
60 u_int32_t cs_blksz; /* current block size */
61 u_int32_t cs_segsz; /* current segment size */
62 int cs_locked; /* channel locked? */
63 };
64
65 struct cs4231_softc {
66 struct device sc_dev; /* base device */
67 struct intrhand sc_ih; /* interrupt vectoring */
68 bus_dma_tag_t sc_dmatag;
69 bus_space_tag_t sc_bustag; /* CS4231/APC register tag */
70 bus_space_handle_t sc_regs; /* CS4231/APC register handle */
71 int sc_burst; /* XXX: DMA burst size in effect */
72 int sc_open; /* already open? */
73
74 struct cs_channel sc_playback, sc_capture;
75
76 char sc_mute[9]; /* which devs are muted */
77 u_int8_t sc_out_port; /* output port */
78 u_int8_t sc_in_port; /* input port */
79 struct cs_volume sc_volume[9]; /* software volume */
80 struct cs_volume sc_adc; /* adc volume */
81
82 int sc_format_bits;
83 int sc_speed_bits;
84 int sc_precision;
85 int sc_need_commit;
86 int sc_channels;
87 struct cs_dma *sc_dmas; /* dma list */
88 };