diff options
Diffstat (limited to 'firmware/target/mips/ingenic_x1000/erosqnative/audiohw-erosqnative.c')
-rw-r--r-- | firmware/target/mips/ingenic_x1000/erosqnative/audiohw-erosqnative.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/firmware/target/mips/ingenic_x1000/erosqnative/audiohw-erosqnative.c b/firmware/target/mips/ingenic_x1000/erosqnative/audiohw-erosqnative.c new file mode 100644 index 0000000000..7bb985650c --- /dev/null +++ b/firmware/target/mips/ingenic_x1000/erosqnative/audiohw-erosqnative.c | |||
@@ -0,0 +1,90 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2021 Aidan MacDonald, Dana Conrad | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | |||
22 | #include "audiohw.h" | ||
23 | #include "system.h" | ||
24 | #include "pcm_sampr.h" | ||
25 | #include "aic-x1000.h" | ||
26 | #include "i2c-x1000.h" | ||
27 | #include "gpio-x1000.h" | ||
28 | #include "logf.h" | ||
29 | |||
30 | /* Audio path appears to be: | ||
31 | * DAC --> HP Amp --> Stereo Switch --> HP OUT | ||
32 | * \--> LO OUT | ||
33 | * | ||
34 | * The real purpose of the Stereo Switch is not clear. | ||
35 | * It appears to switch sources between the HP amp and something, | ||
36 | * likely something unimplemented. */ | ||
37 | |||
38 | void audiohw_init(void) | ||
39 | { | ||
40 | /* explicitly mute everything */ | ||
41 | gpio_set_level(GPIO_MAX97220_SHDN, 0); | ||
42 | gpio_set_level(GPIO_ISL54405_MUTE, 1); | ||
43 | gpio_set_level(GPIO_PCM5102A_XMIT, 0); | ||
44 | |||
45 | aic_set_external_codec(true); | ||
46 | aic_set_i2s_mode(AIC_I2S_MASTER_MODE); | ||
47 | audiohw_set_frequency(HW_FREQ_48); | ||
48 | |||
49 | aic_enable_i2s_master_clock(true); | ||
50 | aic_enable_i2s_bit_clock(true); | ||
51 | |||
52 | mdelay(10); | ||
53 | |||
54 | /* power on DAC and HP Amp */ | ||
55 | gpio_set_level(GPIO_PCM5102A_ANALOG_PWR, 1); | ||
56 | gpio_set_level(GPIO_MAX97220_POWER, 1); | ||
57 | } | ||
58 | |||
59 | void audiohw_postinit(void) | ||
60 | { | ||
61 | /* unmute - attempt to make power-on pop-free */ | ||
62 | gpio_set_level(GPIO_ISL54405_SEL, 0); | ||
63 | gpio_set_level(GPIO_MAX97220_SHDN, 1); | ||
64 | mdelay(10); | ||
65 | gpio_set_level(GPIO_PCM5102A_XMIT, 1); | ||
66 | mdelay(10); | ||
67 | gpio_set_level(GPIO_ISL54405_MUTE, 0); | ||
68 | } | ||
69 | |||
70 | /* TODO: get shutdown just right according to dac datasheet */ | ||
71 | void audiohw_close(void) | ||
72 | { | ||
73 | /* mute - attempt to make power-off pop-free */ | ||
74 | gpio_set_level(GPIO_ISL54405_MUTE, 1); | ||
75 | mdelay(10); | ||
76 | gpio_set_level(GPIO_PCM5102A_XMIT, 0); | ||
77 | mdelay(10); | ||
78 | gpio_set_level(GPIO_MAX97220_SHDN, 0); | ||
79 | } | ||
80 | |||
81 | void audiohw_set_frequency(int fsel) | ||
82 | { | ||
83 | int sampr = hw_freq_sampr[fsel]; | ||
84 | int mult = 256; | ||
85 | |||
86 | aic_enable_i2s_bit_clock(false); | ||
87 | aic_set_i2s_clock(X1000_CLK_SCLK_A, sampr, mult); | ||
88 | aic_enable_i2s_bit_clock(true); | ||
89 | } | ||
90 | |||