[FAQ] Linux Drivers: Device drivers for AIC31xx/DAC31xx/AIC325x/AIC320x/AIC326x/AIC321x

Collin Wells

Other Parts Discussed in Thread: PCMD3180, PCMD3140, TLV320ADC3101, TLV320ADC3100, TLV320AIC23, TLV320AIC26, TLV320AIC3120, TLV320AIC3100, TLV320DAC3101, TLV320DAC3100, TLV320AIC3111, TLV320AIC3110, TLV320AIC3105, TLV320AIC3106, TLV320AIC3107, TLV320AIC3101, TLV320AIC3007, TLV320AIC3109-Q1, TLV320AIC33, TLV320AIC3104, TLV320AIC3204, TLV320AIC3206, TLV320AIC3256, TLV320AIC3254, TLV320AIC3268, TLV320AIC3263, TLV320AIC3262, TLV320AIC3212, PCM1681, PCM1789, PCM1865, PCM1863, PCM1862, PCM1864, PCM3008, PCM3060, PCM3168, PCM5102A, PCM3008SW-LINUX, PCM3168ASW-LINUX, PCM1681SW-LINUX, TLV320AIC3XSW-LINUX, TLV320AIC31XX-DRIVERS, TLV320AIC31XXSW-LINUX, PCM3XXX-DRIVERS, PCM186X-DRIVERS, PCMD31XX-DRIVERS, PCM5XXX-DRIVERS, PCM17XXSW-DRIVERS, TLV320AIC2X-DRIVERS, TLV320DAC31XX-DRIVERS, TLV320ADCX140SW-DRIVERS, PCM179XSW-LINUX, TLV320ADC31XX-DRIVERS, TLV320AIC32X4SW-LINUX, TLV320AIC32XX-DRIVERS, TLV320AIC32X6-DRIVERS

Hello,

Are device drivers available for the AIC31xx/DAC31xx/AIC325x/AIC320x/AIC326x/AIC321x family of devices?

over 5 years ago

0 Collin Wells over 5 years ago

TI__Guru 62895 points

Reference ALSA SoC codec drivers for the above mentioned devices are now available from kernel.org. These device drivers have undergone limited testing on select OMAP3-based, OMAP4-based, and Sitara-based platforms. While every attempt has been made to adhere to guidelines for the development of ALSA SoC codec drivers, use of these drivers on other application processor platforms may require significant additional code. Device variants that include the miniDSP also require a binary firmware to be made available to the driver by the system. Not all features of these device are supported by the drivers.

UPDATE (06-Jan-2021):

Device	Driver	Documentation	Kernel Version Supported	Notes
TLV320ADCx140, PCMD3180, PCMD3140	tlv320adcx140.c tlv320adcx140.h	tlv320adcx140.yaml	v5.0 or later
TLV320ADC310x (TLV320ADC3101, TLV320ADC3100)	tlv320adc310x.c tlv320adc310x.h		v4.14 or later
TLV320AIC23	tlv320aic23-i2c.c tlv320aic23-spi.c tlv320aic23.c tlv320aic23.h		v4.14 or later
TLV320AIC26	tlv320aic26.c tlv320aic26.h		v4.14 or later
TLV320DAC33	tlv320dac33.c tlv320dac33.h
TLV320AIC3100, TLV320AIC3110, TLV320AIC3111, TLV320AIC3120, TLV320DAC3100, TLV320DAC3101	tlv320aic31xx.c tlv320aic31xx.h	tlv320aic31xx.txt	v4.19 or later
	tlv320aic31xx.c tlv320aic31xx.h		backport to v3.18
TLV320AIC3x, TLV320AIC33, TLV320AIC3007, TLV320AIC3101, TLV320AIC3104, TLV320AIC3105, TLV320AIC3106, TLV320AIC3107, TLV320AIC3109-Q1	tlv320aic3x.c tlv320aic3x.h	tlv320aic3x.txt	v4.19 or later
TLV320AIC3204, TLV320AIC3254, TLV320AIC3206, TLV320AIC3256	tlv320aic32x4-clk.c tlv320aic32x4-i2c.c tlv320aic32x4-spi.c tlv320aic32x4.c tlv320aic32x4.h	tlv320aic32x4.txt	v4.19 or later
TLV320AIC3262, TLV320AIC3263, TLV320AIC3212, TLV320AIC3268	tlv320aic326x.c tlv320aic326x.h		v4.19 or later
PCM1681	pcm1681.c		v4.19 or later
PCM1789	pcm1789-i2c.c pcm1789.c	pcm1789.txt	v4.19 or later
PCM179x	pcm179x-i2c.c pcm179x-spi.c pcm179x.c pcm179x.h	pcm179x.txt	v4.19 or later
PCM1862, PCM1863, PCM1864, PCM1865	pcm186x-i2c.c pcm186x-spi.c pcm186x.c pcm186x.h	pcm186x.txt	v4.19 or later
PCM3008	pcm3008.c pcm3008.h		v4.19 or later
PCM3060	pcm3060-i2c.c pcm3060-spi.c pcm3060.c pcm3060.h	pcm3060.txt	v5.0 or later
PCM3168	pcm3168a-i2c.c pcm3168a-spi.c pcm3168a.c pcm3168a.h		v4.19 or later
PCM5102A	pcm5102a.c	pcm5102a.txt	v4.19 or later
PCM512x	pcm512x-i2c.c pcm512x-spi.c pcm512x.c pcm512x.h	pcm512x.txt	v4.19 or later

PCM3008SW-LINUX , PCM3168ASW-LINUX , PCM1681SW-LINUX , TLV320AIC3XSW-LINUX , TLV320AIC31XX-DRIVERS , TLV320AIC31XXSW-LINUX , PCM3XXX-DRIVERS , PCM186X-DRIVERS , PCMD31XX-DRIVERS , PCM5XXX-DRIVERS , PCM17XXSW-DRIVERS , PCM179XSW-LINUX , TLV320ADCX140SW-DRIVERS , TLV320ADC31XX-DRIVERS , TLV320AIC2X-DRIVERS , TLV320DAC31XX-DRIVERS , TLV320AIC32XX-DRIVERS , TLV320AIC32X4SW-LINUX , TLV320AIC32X6-DRIVERS

Some additional links:

alsa.mirror.fr/.../alsa-driver-1.0.24.tar.bz2

Look in these folders

Codecs alsa-driver-1.0.24\alsa-kernel\soc\codecs

OMAP alsa-driver-1.0.24\alsa-kernel\soc\omap

DaVinci alsa-driver-1.0.24\alsa-kernel\soc\davinci

Useful commands to test these drivers:

Linux commands
- I2C
  - i2cdetect r 2 => shows devices connected
  - i2cget -y -f 2 0x4c 0x11 => gets I2C bus 2 at device 0x4C address and register 0x11
  - i2cset -y -f 2 0x4c 0x11 0x00 => sets I2C bus 2 at device 0x4C address and register 0x11 to 0x00
  - i2cdump -y -f 2 0x4c => show all registers at I2C bus 2 device 0x4c
- Amixer
  - amixer controls => list all controls
  - amixer contents => list all controls and contents
  - amixer set CH1_ASI_EN on=> tuns on ASI for Ch1
- Record
  - arecord –c<number of channels> -f <format> -r <sample_rate> -d <Duration> <file_name>
    format => type of the sample. The recognized sample formats are S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE
    Duration => duration of recording in seconds.
    sample_rate => 8000 Hz, 11025 Hz, 22050 Hz, 32000 Hz, 44100 Hz, 48000 Hz, 96000 Hz
    file_name => File name given to recorded audio
- Speaker test:
  - speaker-test -c 2 -t wav -D"hw:0,1"
- Loopback
  - arecord -c 2 -f S16_LE -r 48000 | aplay -f S16_LE -c 2 -r 48000 --device="hw:0,1"
- List any kernel messages
  - with "tlv"
    - dmesg | grep tlv
  - with "pcm"
    - dmesg | grep pcm

Configuring audio devices for linux, typically requires that the DTS be modified in two areas:

The DTS usually has two areas that need the device to be described: i2c and sound. For i2C you would have the following entry with options specific to a device. These options are typically documented in the yaml or txt file for the driver. For example for tlv320aic3x:

&i2c0 {

tlv320aic3x: tlv320aic3x@1b {

compatible = "ti,tlv320aic3x";

reg = <0x1b>;

reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;

AVDD-supply = <&regulator>;

IOVDD-supply = <&regulator>;

DRVDD-supply = <&regulator>;

DVDD-supply = <&regulator>;

};

Also the DTS must describe the pins connected to the processor TDM or I2S bus. For a BeagleBone Black with a Sitara class processor using the McASP0 as the TDM bus peripheral with 32-bit data and TDM bus (dsp_a). Using the same example for tlv320aic3x:

&mcasp0 {

#sound-dai-cells = <0>;

pinctrl-names = "default";

pinctrl-0 = <&mcasp0_pins>;

status = "okay";

op-mode = <0>; /* MCASP_IIS_MODE */

tdm-slots = <4>;

serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */

2 0 1 0

tx-num-evt = <32>;

rx-num-evt = <32>;

};

/ {

clk_mcasp0_fixed: clk_mcasp0_fixed {

#clock-cells = <0>;

compatible = "fixed-clock";

clock-frequency = <24576000>;

};

clk_mcasp0: clk_mcasp0 {

#clock-cells = <0>;

compatible = "gpio-gate-clock";

clocks = <&clk_mcasp0_fixed>;

enable-gpios = <&gpio1 27 0>; /* BeagleBone Black Clk enable on GPIO1_27 */

};

sound {

compatible = "simple-audio-card";

simple-audio-card,name = "TI BeagleBone Black";

#sound-dai-cells = <0>;

simple-audio-card,dai-link@0 {

format = "dsp_a";

bitclock-master = <&sound0_master>;

frame-master = <&sound0_master>;

sound0_master: cpu {

sound-dai = <&mcasp0>;

clocks = <&clk_mcasp0>;

};

codec {

sound-dai = <&tlv320aic3x>;

};

Audio

Audio forum

[FAQ] Linux Drivers: Device drivers for AIC31xx/DAC31xx/AIC325x/AIC320x/AIC326x/AIC321x

UPDATE (06-Jan-2021):

Useful commands to test these drivers: