71 lines
1.7 KiB
Plaintext
71 lines
1.7 KiB
Plaintext
Qualcomm Audio Stream Manager (Q6ASM) binding
|
|
|
|
Q6ASM is one of the APR audio service on Q6DSP.
|
|
Please refer to qcom,apr.txt for details of the common apr service bindings
|
|
used by the apr service device.
|
|
|
|
- but must contain the following property:
|
|
|
|
- compatible:
|
|
Usage: required
|
|
Value type: <stringlist>
|
|
Definition: must be "qcom,q6asm-v<MAJOR-NUMBER>.<MINOR-NUMBER>".
|
|
Or "qcom,q6asm" where the version number can be queried
|
|
from DSP.
|
|
example "qcom,q6asm-v2.0"
|
|
|
|
= ASM DAIs (Digial Audio Interface)
|
|
"dais" subnode of the ASM node represents dai specific configuration
|
|
|
|
- compatible:
|
|
Usage: required
|
|
Value type: <stringlist>
|
|
Definition: must be "qcom,q6asm-dais".
|
|
|
|
- #sound-dai-cells
|
|
Usage: required
|
|
Value type: <u32>
|
|
Definition: Must be 1
|
|
|
|
== ASM DAI is subnode of "dais" and represent a dai, it includes board specific
|
|
configuration of each dai. Must contain the following properties.
|
|
|
|
- reg
|
|
Usage: required
|
|
Value type: <u32>
|
|
Definition: Must be dai id
|
|
|
|
- direction:
|
|
Usage: Required for Compress offload dais
|
|
Value type: <u32>
|
|
Definition: Specifies the direction of the dai stream
|
|
Q6ASM_DAI_TX_RX (0) for both tx and rx
|
|
Q6ASM_DAI_TX (1) for only tx (Capture/Encode)
|
|
Q6ASM_DAI_RX (2) for only rx (Playback/Decode)
|
|
|
|
- is-compress-dai:
|
|
Usage: Required for Compress offload dais
|
|
Value type: <boolean>
|
|
Definition: present for Compress offload dais
|
|
|
|
|
|
= EXAMPLE
|
|
#include <dt-bindings/sound/qcom,q6asm.h>
|
|
|
|
apr-service@7 {
|
|
compatible = "qcom,q6asm";
|
|
reg = <APR_SVC_ASM>;
|
|
q6asmdai: dais {
|
|
compatible = "qcom,q6asm-dais";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
#sound-dai-cells = <1>;
|
|
|
|
dai@0 {
|
|
reg = <0>;
|
|
direction = <Q6ASM_DAI_RX>;
|
|
is-compress-dai;
|
|
};
|
|
};
|
|
};
|