summaryrefslogtreecommitdiffstats
path: root/firmware/target/arm/audio-pp.c
blob: 6b5b082cc78f4b7c1bf0473e7526695e0552a6e9 (plain)
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
/***************************************************************************
 *             __________               __   ___.
 *   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 "system.h"
#include "cpu.h"
#include "audio.h"
#include "sound.h"

#if INPUT_SRC_CAPS != 0
void audio_set_output_source(int source)
{
    if ((unsigned)source >= AUDIO_NUM_SOURCES)
        source = AUDIO_SRC_PLAYBACK;
} /* audio_set_output_source */

void audio_input_mux(int source, unsigned flags)
{
    (void)flags;
    /* Prevent pops from unneeded switching */
    static int last_source = AUDIO_SRC_PLAYBACK;
#ifdef HAVE_FMRADIO_REC 
    bool recording = flags & SRCF_RECORDING;
    static bool last_recording = false;
#endif

#if defined(IPOD_COLOR) || defined (IPOD_4G)
    /* The usual magic from IPL - I'm guessing this configures the headphone
       socket to be input or output. */
    if ((flags & SRCF_RECORDING) && source != AUDIO_SRC_PLAYBACK)
    {
        /* input */
        GPIO_CLEAR_BITWISE(GPIOI_OUTPUT_VAL, 0x40);
        GPIO_CLEAR_BITWISE(GPIOA_OUTPUT_VAL, 0x04);
    }
    else
    {
        /* output */
        GPIO_SET_BITWISE(GPIOI_OUTPUT_VAL, 0x40);
        GPIO_SET_BITWISE(GPIOA_OUTPUT_VAL, 0x04);
    }
#endif /* IPOD_COLOR || IPOD_4G */

    switch (source)
    {
        default:                        /* playback - no recording */
            source = AUDIO_SRC_PLAYBACK;
        case AUDIO_SRC_PLAYBACK:
#ifdef HAVE_RECORDING
            if (source != last_source)
            {
                audiohw_set_monitor(false);
                audiohw_disable_recording();
            }
#endif
        break;
#ifdef HAVE_MIC_REC
        case AUDIO_SRC_MIC:             /* recording only */
            if (source != last_source)
            {
                audiohw_set_monitor(false);
                audiohw_enable_recording(true);  /* source mic */
            }
        break;
#endif
#ifdef HAVE_LINE_REC
        case AUDIO_SRC_LINEIN:          /* recording only */
#if defined(IRIVER_H10) || defined(IRIVER_H10_5GB)
            /* Switch line in source to line-in */
            GPIO_SET_BITWISE(GPIOB_OUTPUT_VAL, 0x04);
#endif
            if (source != last_source)
            {
                audiohw_set_monitor(false);
                audiohw_enable_recording(false); /* source line */
            }
        break;
#endif
#ifdef HAVE_FMRADIO_REC
        case AUDIO_SRC_FMRADIO:         /* recording and playback */
#if defined(IRIVER_H10) || defined(IRIVER_H10_5GB)
            /* Switch line in source to tuner */
            GPIO_CLEAR_BITWISE(GPIOB_OUTPUT_VAL, 0x04);
            /* Set line-in vol to +12dB, which is proper for H10's */
            if (!recording)
                audiohw_set_recvol(0x1f, 0x1f, AUDIO_GAIN_LINEIN);
#else            /* Set line-in vol to 0dB*/
            if (!recording)
                audiohw_set_recvol(0x17, 0x17, AUDIO_GAIN_LINEIN);
#endif

            if (source == last_source && recording == last_recording)
                break;

            last_recording = recording;

#if CONFIG_TUNER & IPOD_REMOTE_TUNER
            /* Ipod FM tuner is in the remote connected to line-in */
                audiohw_enable_recording(false); /* source line */
                audiohw_set_monitor(true);  /* enable bypass mode */
#else
            if (recording)
            {
                audiohw_set_monitor(false);  /* disable bypass mode */
                audiohw_enable_recording(false); /* select line-in source */
            }
            else
            {
                audiohw_disable_recording();
                audiohw_set_monitor(true);  /* enable bypass mode */
            }
#endif
        break;
#endif
    } /* end switch */

    last_source = source;
} /* audio_input_mux */
#endif /* INPUT_SRC_CAPS != 0 */