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0b11dbf7 MY |
1 | menu "Sound support" |
2 | ||
ef35d98a SG |
3 | config SOUND |
4 | bool "Enable sound support" | |
5 | help | |
6 | Support making sounds through an audio codec. This is normally a | |
7 | beep at a chosen frequency for a selected length of time. However | |
8 | the drivers support playing arbitrary sound samples using a | |
9 | PCM interface. | |
10 | ||
11 | Note: At present the sound setup is somewhat tangled up in that the | |
12 | audio codecs are called from the sound-i2s code. This could be | |
13 | converted to driver model. | |
00cf7bf1 SG |
14 | |
15 | config I2S | |
16 | bool "Enable I2S support" | |
17 | depends on SOUND | |
18 | help | |
19 | I2S is a serial bus often used to transmit audio data from the | |
20 | SoC to the audio codec. This option enables sound support using | |
21 | I2S. It calls either of the two supported codecs (no use is made | |
22 | of driver model at present). | |
6bd7be27 | 23 | |
2665f091 SG |
24 | config I2S_ROCKCHIP |
25 | bool "Enable I2S support for Rockchip SoCs" | |
26 | depends on I2S | |
27 | help | |
28 | Rockchip SoCs support an I2S interface for sending audio data to an | |
29 | audio codec. This option enables support for this, using one of the | |
30 | available audio codec drivers. This driver does not make use of | |
31 | DMA, but writes each word directly to the hardware. | |
32 | ||
6bd7be27 SG |
33 | config I2S_SAMSUNG |
34 | bool "Enable I2C support for Samsung SoCs" | |
afcd6457 | 35 | depends on I2S |
6bd7be27 SG |
36 | help |
37 | Samsung Exynos SoCs support an I2S interface for sending audio | |
38 | data to an audio codec. This option enables support for this, | |
39 | using one of the available audio codec drivers. Enabling this | |
40 | option provides an implementation for sound_init() and | |
41 | sound_play(). | |
7a170a59 | 42 | |
6a27e540 SG |
43 | config SOUND_I8254 |
44 | bool "Intel i8254 timer / beeper" | |
45 | depends on SOUND | |
46 | help | |
47 | This enables support for a beeper that uses the i8254 timer chip. | |
48 | This can emit beeps at a fixed frequency. It is possible to control | |
49 | the length of the beeps, by turning a beep on, waiting for a period | |
50 | of time, then turning it off. | |
51 | ||
52 | This is quite an old feature, called PIT (Programmable Interval | |
53 | Timer), but is nonetheless still available on modern x86 machines. | |
54 | ||
2ca47137 SG |
55 | config SOUND_INTEL_HDA |
56 | bool "Intel HDA audio codec" | |
57 | depends on SOUND | |
58 | help | |
59 | Most Intel chips have an HDA (High-definition audio) codec which can | |
60 | be used by U-Boot to play simple beeps. This is also sometimes called | |
61 | Azalia which was the development code-name. It requires setup | |
62 | information in the device tree (see intel-hda.txt). | |
63 | ||
6744c0d6 SG |
64 | config SOUND_IVYBRIDGE |
65 | bool "Intel Ivybridge sound support" | |
66 | depends on SOUND | |
67 | select SOUND_INTEL_HDA | |
68 | help | |
69 | Enable sound output on supported Intel Ivybridge-based boards. This | |
70 | driver uses Intel's High-definition Audio (HDA) architecture, | |
71 | sometimes called Azalia. The audio codec is detected using a | |
72 | semi-automatic mechanism. | |
73 | ||
9a7210f6 SG |
74 | config SOUND_MAX98088 |
75 | bool "Support Maxim max98088 audio codec" | |
afcd6457 | 76 | depends on I2S |
9a7210f6 SG |
77 | help |
78 | Enable the max98088 audio codec. This is connected via I2S for | |
79 | audio data and I2C for codec control. At present it only works | |
80 | with the Samsung I2S driver. | |
81 | ||
8cad63c7 SG |
82 | config SOUND_MAX98090 |
83 | bool "Support Maxim max98090 audio codec" | |
afcd6457 | 84 | depends on I2S |
8cad63c7 SG |
85 | help |
86 | Enable the max98090 audio codec. This is connected via I2S for | |
87 | audio data and I2C for codec control. At present it only works | |
88 | with the Samsung I2S driver. | |
89 | ||
7a170a59 SG |
90 | config SOUND_MAX98095 |
91 | bool "Support Maxim max98095 audio codec" | |
afcd6457 | 92 | depends on I2S |
7a170a59 SG |
93 | help |
94 | Enable the max98095 audio codec. This is connected via I2S for | |
95 | audio data and I2C for codec control. At present it only works | |
96 | with the Samsung I2S driver. | |
dd573f91 | 97 | |
cf885929 SG |
98 | config SOUND_RT5677 |
99 | bool "Support Realtek RT5677 audio codec" | |
100 | depends on SOUND | |
101 | help | |
102 | Enable the Realtek RT5677 audio codec. This is an I2S device used on | |
103 | some Chromebooks from around 2015 ('auron'). It is configured using | |
104 | an I2C interface and supports multiple sound inputs and outputs, | |
105 | including digital microphones. | |
106 | ||
3907305f SG |
107 | config SOUND_SANDBOX |
108 | bool "Support sandbox emulated audio codec" | |
109 | depends on SANDBOX && SOUND | |
110 | help | |
111 | U-Boot sandbox can emulate a sound device using SDL, playing the | |
112 | sound on the host machine. This option implements the sound_init() | |
113 | and sound_play() functions for sandbox. Note that you must install | |
114 | the SDL libraries for this to work. | |
115 | ||
dd573f91 SG |
116 | config SOUND_WM8994 |
117 | bool "Support Wolfson Micro wm8994 audio codec" | |
118 | depends on I2S_SAMSUNG | |
119 | help | |
120 | Enable the wm8994 audio codec. This is connected via I2S for | |
121 | audio data and I2C for codec control. At present it only works | |
122 | with the Samsung I2S driver. | |
0b11dbf7 MY |
123 | |
124 | endmenu |