diff options
Diffstat (limited to 'firmware/target/hosted/ibasso/audiohw-ibasso.c')
-rw-r--r-- | firmware/target/hosted/ibasso/audiohw-ibasso.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/firmware/target/hosted/ibasso/audiohw-ibasso.c b/firmware/target/hosted/ibasso/audiohw-ibasso.c new file mode 100644 index 0000000000..447e133eba --- /dev/null +++ b/firmware/target/hosted/ibasso/audiohw-ibasso.c | |||
@@ -0,0 +1,81 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___ | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * | ||
9 | * Copyright (C) 2014 by Ilia Sergachev: Initial Rockbox port to iBasso DX50 | ||
10 | * Copyright (C) 2014 by Mario Basister: iBasso DX90 port | ||
11 | * Copyright (C) 2014 by Simon Rothen: Initial Rockbox repository submission, additional features | ||
12 | * Copyright (C) 2014 by Udo Schläpfer: Code clean up, additional features | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or | ||
15 | * modify it under the terms of the GNU General Public License | ||
16 | * as published by the Free Software Foundation; either version 2 | ||
17 | * of the License, or (at your option) any later version. | ||
18 | * | ||
19 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
20 | * KIND, either express or implied. | ||
21 | * | ||
22 | ****************************************************************************/ | ||
23 | |||
24 | |||
25 | #include "config.h" | ||
26 | #include "debug.h" | ||
27 | #include "pcm_sw_volume.h" | ||
28 | #include "settings.h" | ||
29 | |||
30 | #include "debug-ibasso.h" | ||
31 | #include "pcm-ibasso.h" | ||
32 | |||
33 | |||
34 | void audiohw_close(void) | ||
35 | { | ||
36 | TRACE; | ||
37 | |||
38 | pcm_close_device(); | ||
39 | } | ||
40 | |||
41 | |||
42 | void set_software_volume(void) | ||
43 | { | ||
44 | /* -73dB (?) minimum software volume in decibels. See pcm-internal.h. */ | ||
45 | static const int SW_VOLUME_MIN = 730; | ||
46 | |||
47 | int sw_volume_l = 0; | ||
48 | int sw_volume_r = 0; | ||
49 | |||
50 | if(global_settings.balance > 0) | ||
51 | { | ||
52 | if(global_settings.balance == 100) | ||
53 | { | ||
54 | sw_volume_l = PCM_MUTE_LEVEL; | ||
55 | } | ||
56 | else | ||
57 | { | ||
58 | sw_volume_l -= SW_VOLUME_MIN * global_settings.balance / 100; | ||
59 | } | ||
60 | } | ||
61 | else if(global_settings.balance < 0) | ||
62 | { | ||
63 | if(global_settings.balance == -100) | ||
64 | { | ||
65 | sw_volume_r = PCM_MUTE_LEVEL; | ||
66 | } | ||
67 | else | ||
68 | { | ||
69 | sw_volume_r = SW_VOLUME_MIN * global_settings.balance / 100; | ||
70 | } | ||
71 | } | ||
72 | |||
73 | DEBUGF("DEBUG %s: global_settings.balance: %d, sw_volume_l: %d, sw_volume_r: %d.", | ||
74 | __func__, | ||
75 | global_settings.balance, | ||
76 | sw_volume_l, | ||
77 | sw_volume_r); | ||
78 | |||
79 | /* Emulate balance with software volume. */ | ||
80 | pcm_set_master_volume(sw_volume_l, sw_volume_r); | ||
81 | } | ||