1 /* $NetBSD: tms320av110var.h,v 1.13 2019/05/08 13:40:18 isaki Exp $ */
2
3 /*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Ignatios Souvatzis.
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 /*
33 * Machine independent definitions, declarations and data structures for
34 * access to the TMS320AV110 data sheet.
35 *
36 * Currently, only minimum support for audio output. For audio/video
37 * synchronization, more is needed.
38 */
39
40 #ifndef _TMS320AV110_VAR_H_
41 #define _TMS320AV110_VAR_H_
42
43 #include <sys/bus.h>
44
45 /* softc */
46
47 struct tav_softc {
48 device_t sc_dev;
49 kmutex_t sc_lock;
50 kmutex_t sc_intr_lock;
51
52 bus_space_tag_t sc_iot;
53 bus_space_handle_t sc_ioh;
54
55 int sc_active;
56
57 /* above audio callback function */
58 void (*sc_intr)(void *);
59 void *sc_intrarg;
60 int sc_bsize;
61
62 /* below audio interrupt acknowledge function. Ignored if NULL */
63 void (*sc_intack)(struct tav_softc *);
64
65 /* initialization from below */
66
67 uint8_t sc_pcm_div; /* passed in */
68 uint8_t sc_pcm_ord; /* passed in */
69 uint8_t sc_pcm_18; /* passed in */
70 uint8_t sc_dif; /* passed in */
71 };
72
73 /* prototypes */
74
75 void tms320av110_attach_mi(struct tav_softc *);
76 int tms320av110_intr(void *);
77
78 static void tav_write_short(bus_space_tag_t, bus_space_handle_t,
79 bus_size_t, uint16_t);
80
81 /* access functions/macros: */
82 /* XXX shouldn't these be in the reg.h file? */
83
84 #define tav_read_byte(ioh, iot, off) bus_space_read_1(ioh, iot, off)
85
86 #define tav_read_short(ioh, iot, off) ( \
87 bus_space_read_1((ioh), (iot), (off)) | \
88 bus_space_read_1((ioh), (iot), (off)+1) << 8)
89
90 #define tav_read_long(ioh, iot, off) ( \
91 bus_space_read_1((ioh), (iot), (off)) | \
92 bus_space_read_1((ioh), (iot), (off)+1) << 8 | \
93 bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
94 bus_space_read_1((ioh), (iot), (off)+3))
95
96 #define tav_read_time(ioh, iot, off) ( \
97 bus_space_read_1((ioh), (iot), (off)) | \
98 bus_space_read_1((ioh), (iot), (off)+1) << 8 | \
99 bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
100 bus_space_read_1((ioh), (iot), (off)+3) << 24 | \
101 bus_space_read_1((ioh), (iot), (off)+4) << 32)
102
103 #define tav_write_byte(ioh, iot, off, v) bus_space_write_1(ioh, iot, off, v)
104
105 static __inline void
tav_write_short(bus_space_tag_t iot,bus_space_handle_t ioh,bus_size_t off,uint16_t val)106 tav_write_short(bus_space_tag_t iot, bus_space_handle_t ioh,
107 bus_size_t off, uint16_t val)
108 {
109
110 bus_space_write_1(iot, ioh, off+1, (val)>>8);
111 bus_space_write_1(iot, ioh, off, (uint8_t)val);
112 }
113
114 #endif /* _TMS320AV110_VAR_H_ */
115