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====== ADAU1860 Sound CODEC Linux Driver ======

===== Supported Devices =====

  * [[adi>ADAU1860]]
  * [[adi>ADAU1850]]

===== Evaluation Boards =====

  * [[adi>EVAL-ADAU1860]]
  * [[adi>EVAL-ADAU1850]]

====== Source Code ======

==== Status ====
^ Source ^ Mainlined? ^
| [[linux.github>adau1860_dev/sound/soc/codecs/adau1860.c|git]] | [[No]] |

==== Files ====

^ Function ^ File ^
| driver | [[linux.github>adau1860_dev/sound/soc/codecs/adau1860.c|sound/soc/codecs/adau1860.c]] |
| driver | [[linux.github>adau1860_dev/sound/soc/codecs/adau1860-i2c.c|sound/soc/codecs/adau1860-i2c.c]] |
| driver | [[linux.github>adau1860_dev/sound/soc/codecs/adau1860-spi.c|sound/soc/codecs/adau1860-spi.c]] |
| include | [[linux.github>adau1860_dev/sound/soc/codecs/adau1860.h|sound/soc/codecs/adau1860.h]] |
| include | [[linux.github>adau1860_dev/include/sound/adau1860.h|include/sound/adau1860.h]] |

====== Example device initialization ======

YAML example Placeholder

==== I2C ====

The I2C device id depends on the ADDR0 and ADDR1 pin settings and needs to be set according to your board setup.

^ ADDR1 ^ ADDR0 ^ I2C device id ^
| 0 | 0 | 0x64 |
| 0 | 1 | 0x65 |
| 1 | 0 | 0x66 |
| 1 | 1 | 0x67 |

In this example we assume ADDR0=0 and ADDR1=0.

===== ASoC DAPM Widgets =====

^ Name ^ Description ^ Configuration ^
| AINP0 | ADC0 Differential Positive Input | Differential Input |
| AINN0 | ADC0 Differential Negative Input | Differential Input |
| AINP1 | ADC1 Differential Positive Input | Differential Input |
| AINN1 | ADC1 Differential Negative Input | Differential Input |
| AINP2 | ADC2 Differential Positive Input | Differential Input |
| AINN2 | ADC2 Differential Negative Input | Differential Input |
| HPOUTP | Left Headphone Output | |
| HPOUTN | Right Headphone Output | |
| DMIC01 | Digital Microphone 0 and 1 Input | Digital Microphone |
| DMIC23 | Digital Microphone 2 and 3 Input | Digital Microphone |
| DMIC45 | Digital Microphone 4 and 5 Input | Digital Microphone |
| DMIC67 | Digital Microphone 6 and 7 Input | Digital Microphone |

===== ALSA Controls =====

^ Name ^ Description ^ Configuration ^
| ADC0 Capture Volume | ADC Channel 0 digital gain control | |
| ADC1 Capture Volume | ADC Channel 1 digital gain control | |
| ADC2 Capture Volume | ADC Channel 0 digital gain control | |
| ADC0 Capture Switch | ADC Channel 0 Mute/Unmute | |
| ADC1 Capture Switch | ADC Channel 1 Mute/Unmute | |
| ADC2 Capture Switch | ADC Channel 2 Mute/Unmute | |
| ADC0 HPF | ADC Channel 0 High pass filter control | Values: 'Off' '1Hz' '4Hz' '8Hz' |
| ADC1 HPF | ADC Channel 1 High pass filter control | Values: 'Off' '1Hz' '4Hz' '8Hz' |
| ADC2 HPF | ADC Channel 2 High pass filter control | Values: 'Off' '1Hz' '4Hz' '8Hz' |
| DMIC0 Capture Volume | Digital Microphone 0 gain control | |
| DMIC1 Capture Volume | Digital Microphone 1 gain control | |
| DMIC2 Capture Volume | Digital Microphone 2 gain control | |
| DMIC3 Capture Volume | Digital Microphone 3 gain control | |
| DMIC4 Capture Volume | Digital Microphone 4 gain control | |
| DMIC5 Capture Volume | Digital Microphone 5 gain control | |
| DMIC6 Capture Volume | Digital Microphone 6 gain control | |
| DMIC7 Capture Volume | Digital Microphone 7 gain control | |
| DMIC0 Capture Switch | Digital Microphone 0 Mute/Unmute | |
| DMIC1 Capture Switch | Digital Microphone 1 Mute/Unmute | |
| DMIC2 Capture Switch | Digital Microphone 2 Mute/Unmute | |
| DMIC3 Capture Switch | Digital Microphone 3 Mute/Unmute | |
| DMIC4 Capture Switch | Digital Microphone 4 Mute/Unmute | |
| DMIC5 Capture Switch | Digital Microphone 5 Mute/Unmute | |
| DMIC6 Capture Switch | Digital Microphone 6 Mute/Unmute | |
| DMIC7 Capture Switch | Digital Microphone 7 Mute/Unmute | |
| DAC Mux | Selects the source for the DAC | |
| DAC Playback Volume | Digital volume attenuation for output from the DAC | |
| DAC Playback Switch | Mute/Unmute DAC out signal | |
| ASRCI 0 Mux | Mux to select Input ASRC Channel 0 source | |
| ASRCI 1 Mux | Mux to select Input ASRC Channel 1 source | |
| ASRCI 2 Mux | Mux to select Input ASRC Channel 2 source | |
| ASRCI 3 Mux | Mux to select Input ASRC Channel 3 source | |
| ASRCI OUT FS | Input ASRC output sample rate selector | |
| ASRCI SAI SEL | Input ASRC source serial audio interface selector | |
| ASRCO 0 Mux | Mux to select Output ASRC Channel 0 source | |
| ASRCO 1 Mux | Mux to select Output ASRC Channel 1 source | |
| ASRCO 2 Mux | Mux to select Output ASRC Channel 2 source | |
| ASRCO 3 Mux | Mux to select Output ASRC Channel 3 source | |
| ASRCO IN FS | Output ASRC input sample rate selector | |
| ASRCO SAI SEL | Output ASRC sink serial audio interface selector | |
| SPTx_OUT_SLOTy Data Mux | Output SAI x slot y data source mux | Example: SPT0_OUT_SLOT3 Data Mux |

ALSA controls can be modified easily using alsa-tools utilities. For example to read the current state of __DMIC0 Capture Volume__ control one can use:

''amixer -c ADAU1860 cget name='DMIC0 Capture Volume'''

To set one control value the following command can be executed:

''amixer -c ADAU1860 cset name='DMIC0 Capture Volume' 191''

===== DAI configuration =====

The codec driver registers two DAIs:
  * adau1860-sai0
  * adau1860-sai1


==== Supported DAI formats ====

^ Name ^ Supported by driver ^ Description ^
| SND_SOC_DAIFMT_I2S     | yes | I2S mode |
| SND_SOC_DAIFMT_RIGHT_J | yes | Right Justified mode |
| SND_SOC_DAIFMT_LEFT_J  | yes | Left Justified mode  |
| SND_SOC_DAIFMT_DSP_A   | yes  | data MSB after FRM LRC |
| SND_SOC_DAIFMT_DSP_B   | no | data MSB during FRM LRC  |
| SND_SOC_DAIFMT_AC97    | no  | AC97 mode |
| SND_SOC_DAIFMT_PDM     | no  | Pulse density modulation |
| | |
| SND_SOC_DAIFMT_NB_NF | yes  | Normal bit- and frameclock |
| SND_SOC_DAIFMT_NB_IF | yes | Normal bitclock, inverted frameclock |
| SND_SOC_DAIFMT_IB_NF | yes | Inverted frameclock, normal bitclock |
| SND_SOC_DAIFMT_IB_IF | yes | Inverted bit- and frameclock |
| | |
| SND_SOC_DAIFMT_CBM_CFM | yes | Codec bit- and frameclock master |
| SND_SOC_DAIFMT_CBS_CFM | no  | Codec bitclock slave, frameclock master |
| SND_SOC_DAIFMT_CBM_CFS | no  | Codec bitclock master, frameclock slave |
| SND_SOC_DAIFMT_CBS_CFS | yes | Codec bit- and frameclock slave |
| | |
| SNDRV_PCM_FMTBIT_S16_LE | yes | Signed 16 bit per channel, Little Endian |
| SNDRV_PCM_FMTBIT_S20_LE | yes | Signed 20 bit per channel, Little Endian |
| SNDRV_PCM_FMTBIT_S24_LE | yes | Signed 24 bit per channel, Little Endian |
| SNDRV_PCM_FMTBIT_S32_LE | yes | Signed 32 bit per channel, Little Endian |
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