diff options
Diffstat (limited to 'firmware/target/coldfire/iaudio/x5')
-rw-r--r-- | firmware/target/coldfire/iaudio/x5/audio-x5.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/firmware/target/coldfire/iaudio/x5/audio-x5.c b/firmware/target/coldfire/iaudio/x5/audio-x5.c new file mode 100644 index 0000000000..70ef78ff22 --- /dev/null +++ b/firmware/target/coldfire/iaudio/x5/audio-x5.c | |||
@@ -0,0 +1,126 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2006 by Michael Sevakis | ||
11 | * | ||
12 | * All files in this archive are subject to the GNU General Public License. | ||
13 | * See the file COPYING in the source tree root for full license agreement. | ||
14 | * | ||
15 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
16 | * KIND, either express or implied. | ||
17 | * | ||
18 | ****************************************************************************/ | ||
19 | #include "system.h" | ||
20 | #include "cpu.h" | ||
21 | #include "audio.h" | ||
22 | #include "tlv320.h" | ||
23 | |||
24 | /** | ||
25 | * Note that microphone is mono, only left value is used | ||
26 | * See tlv320_set_recvol() for exact ranges. | ||
27 | * | ||
28 | * @param type 0=line-in (radio), 1=mic | ||
29 | * | ||
30 | */ | ||
31 | void audio_set_recording_gain(int left, int right, int type) | ||
32 | { | ||
33 | //logf("rcmrec: t=%d l=%d r=%d", type, left, right); | ||
34 | tlv320_set_recvol(left, right, type); | ||
35 | } /* audio_set_recording_gain */ | ||
36 | |||
37 | void audio_set_output_source(int source) | ||
38 | { | ||
39 | unsigned long txsrc; | ||
40 | |||
41 | if ((unsigned)source >= AUDIO_NUM_SOURCES) | ||
42 | txsrc = (3 << 8); /* playback, PDOR3 */ | ||
43 | else | ||
44 | txsrc = (4 << 8); /* recording, iis1RcvData */ | ||
45 | |||
46 | IIS1CONFIG = (IIS1CONFIG & ~(7 << 8)) | txsrc; | ||
47 | } /* audio_set_output_source */ | ||
48 | |||
49 | void audio_set_source(int source, unsigned flags) | ||
50 | { | ||
51 | /* Prevent pops from unneeded switching */ | ||
52 | static int last_source = AUDIO_SRC_PLAYBACK; | ||
53 | static bool last_recording = false; | ||
54 | |||
55 | bool recording = flags & SRCF_RECORDING; | ||
56 | |||
57 | switch (source) | ||
58 | { | ||
59 | default: /* playback - no recording */ | ||
60 | source = AUDIO_SRC_PLAYBACK; | ||
61 | case AUDIO_SRC_PLAYBACK: | ||
62 | if (source != last_source) | ||
63 | { | ||
64 | tlv320_disable_recording(); | ||
65 | tlv320_set_monitor(false); | ||
66 | /* Reset PDIR2 data flow */ | ||
67 | DATAINCONTROL = (1 << 9); | ||
68 | } | ||
69 | break; | ||
70 | |||
71 | case AUDIO_SRC_MIC: /* recording only */ | ||
72 | if (source != last_source) | ||
73 | { | ||
74 | tlv320_enable_recording(true); /* source mic */ | ||
75 | /* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */ | ||
76 | DATAINCONTROL = (3 << 14) | (4 << 3); | ||
77 | } | ||
78 | break; | ||
79 | |||
80 | case AUDIO_SRC_LINEIN: /* recording only */ | ||
81 | if (source != last_source) | ||
82 | { | ||
83 | tlv320_enable_recording(false); /* source line */ | ||
84 | /* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */ | ||
85 | DATAINCONTROL = (3 << 14) | (4 << 3); | ||
86 | } | ||
87 | break; | ||
88 | |||
89 | case AUDIO_SRC_FMRADIO: /* recording and playback */ | ||
90 | if (!recording) | ||
91 | tlv320_set_recvol(23, 23, AUDIO_GAIN_LINEIN); | ||
92 | |||
93 | /* I2S recording and analog playback */ | ||
94 | if (source == last_source && recording == last_recording) | ||
95 | break; | ||
96 | |||
97 | last_recording = recording; | ||
98 | |||
99 | if (recording) | ||
100 | { | ||
101 | /* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */ | ||
102 | DATAINCONTROL = (3 << 14) | (4 << 3); | ||
103 | tlv320_enable_recording(false); /* source line */ | ||
104 | } | ||
105 | else | ||
106 | { | ||
107 | tlv320_disable_recording(); | ||
108 | tlv320_set_monitor(true); /* analog bypass */ | ||
109 | /* Reset PDIR2 data flow */ | ||
110 | DATAINCONTROL = (1 << 9); | ||
111 | } | ||
112 | break; | ||
113 | } /* end switch */ | ||
114 | |||
115 | /* set line multiplexer */ | ||
116 | if (source == AUDIO_SRC_FMRADIO) | ||
117 | and_l(~(1 << 29), &GPIO_OUT); /* FM radio */ | ||
118 | else | ||
119 | or_l((1 << 29), &GPIO_OUT); /* Line In */ | ||
120 | |||
121 | or_l((1 << 29), &GPIO_ENABLE); | ||
122 | or_l((1 << 29), &GPIO_FUNCTION); | ||
123 | |||
124 | last_source = source; | ||
125 | } /* audio_set_source */ | ||
126 | |||