1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Michael Sevakis
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "system.h"
#include "cpu.h"
#include "audio.h"
#include "sound.h"
void audio_set_output_source(int source)
{
int level = set_irq_level(DMA_IRQ_LEVEL);
unsigned long txsrc;
if ((unsigned)source >= AUDIO_NUM_SOURCES)
txsrc = (3 << 8); /* playback, PDOR3 */
else
txsrc = (4 << 8); /* recording, iis1RcvData */
IIS1CONFIG = (IIS1CONFIG & ~(7 << 8)) | txsrc;
restore_irq(level);
} /* audio_set_output_source */
void audio_input_mux(int source, unsigned flags)
{
/* Prevent pops from unneeded switching */
static int last_source = AUDIO_SRC_PLAYBACK;
#ifdef HAVE_FMRADIO_IN
static bool last_recording = false;
bool recording = flags & SRCF_RECORDING;
#else
(void)flags;
#endif
switch (source)
{
default: /* playback - no recording */
source = AUDIO_SRC_PLAYBACK;
case AUDIO_SRC_PLAYBACK:
if (source != last_source)
{
audiohw_disable_recording();
audiohw_set_monitor(false);
coldfire_set_dataincontrol(0);
}
break;
case AUDIO_SRC_MIC: /* recording only */
if (source != last_source)
{
audiohw_enable_recording(true); /* source mic */
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
}
break;
case AUDIO_SRC_LINEIN: /* recording only */
if (source != last_source)
{
audiohw_enable_recording(false); /* source line */
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
}
break;
#ifdef HAVE_FMRADIO_IN
case AUDIO_SRC_FMRADIO: /* recording and playback */
if (!recording)
audiohw_set_recvol(23, 23, AUDIO_GAIN_LINEIN);
/* I2S recording and analog playback */
if (source == last_source && recording == last_recording)
break;
last_recording = recording;
if (recording)
{
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
audiohw_enable_recording(false); /* source line */
}
else
{
audiohw_disable_recording();
audiohw_set_monitor(true); /* analog bypass */
coldfire_set_dataincontrol(0);
}
break;
#endif /* HAVE_FMRADIO_IN */
} /* end switch */
/* set line multiplexer */
#ifdef IAUDIO_M3
#ifdef HAVE_FMRADIO_IN
if (source == AUDIO_SRC_FMRADIO)
and_l(~(1 << 25), &GPIO1_OUT); /* FM radio */
else
#endif
or_l((1 << 25), &GPIO1_OUT); /* Line In */
or_l((1 << 25), &GPIO1_ENABLE);
or_l((1 << 25), &GPIO1_FUNCTION);
#else /* iAudio M5, X5 */
#ifdef HAVE_FMRADIO_IN
if (source == AUDIO_SRC_FMRADIO)
and_l(~(1 << 29), &GPIO_OUT); /* FM radio */
else
#endif
or_l((1 << 29), &GPIO_OUT); /* Line In */
or_l((1 << 29), &GPIO_ENABLE);
or_l((1 << 29), &GPIO_FUNCTION);
#endif /* iAudio M5, X5 */
last_source = source;
} /* audio_input_mux */
|
