[RFC PATCH 00/13] ASoC: qcom: Add AudioReach support
From: Srinivas Kandagatla
Date: Mon Jun 07 2021 - 11:29:16 EST
This patchset adds ASoC driver support to configure signal processing
framework ("AudioReach") which is integral part of Qualcomm next
generation audio SDK and will be deployed on upcoming Qualcomm chipsets.
It makes use of ASoC Topology to load graphs on to the DSP which is then
managed by APM (Audio Processing Manager) service to prepare/start/stop.
Here is simpified high-level block diagram of AudioReach:
___________________________________________________________
| CPU (Application Processor) |
| +---------+ +---------+ +---------+ |
| | q6apm | | q6apm | | q6afe | |
| | dais | <------> | | <-----> | bedais | |
| +---------+ +---------+ +---------+ |
| ^ ^ |
| | | +---------+ |
| +---------+ v +---------->|topology | |
| | q6prm | +---------+ | | |
| | |<-------->| GPR | +---------+ |
| +---------+ +---------+ |
| ^ |
|____________________________|______________________________|
|
| RPMSG (IPC over GLINK)
____________________________|______________________________
| | |
| +-----------------------+ |
| | | |
| v v q6 (Audio DSP) |
|+-----+ +----------------------------------+ |
|| PRM | | APM (Audio Processing Manager) | |
|+-----+ | . Graph Management | |
| | . Command Handing | |
| | . Event Management | |
| | ... | |
| +----------------------------------+ |
| ^ |
|____________________________|______________________________|
|
| LPASS AIF
____________________________|______________________________
| | Audio I/O |
| v |
| +--------------------------------------------------+ |
| | Audio devices | |
| | CODEC | HDMI-TX | PCM | SLIMBUS | I2S |MI2S |...| |
| | | |
| +--------------------------------------------------+ |
|___________________________________________________________|
AudioReach has constructs of sub-graph, container and modules.
Each sub-graph can have N containers and each Container can have N Modules
and connections between them can be linear or non-linear.
An audio function can be realized with one or many connected
sub-graphs. There are also control/event paths between modules that can
be wired up while building graph to achieve various control mechanism
between modules. These concepts of Sub-Graph, Containers and Modules
are represented in ASoC topology.
Here is simple I2S graph with a Write Shared Memory and a
Volume control module within a single Subgraph (1) with one Container (1)
and 5 modules.
____________________________________________________________
| Sub-Graph [1] |
| _______________________________________________________ |
| | Container [1] | |
| | [WR_SH] -> [PCM DEC] -> [PCM CONV] -> [VOL]-> [I2S-EP]| |
| |_______________________________________________________| |
|____________________________________________________________|
For now this graph is split into two subgraphs to achieve dpcm like below:
________________________________________________ _________________
| Sub-Graph [1] | | Sub-Graph [2] |
| ____________________________________________ | | _____________ |
| | Container [1] | | | |Container [2]| |
| | [WR_SH] -> [PCM DEC] -> [PCM CONV] -> [VOL]| | | | [I2S-EP] | |
| |____________________________________________| | | |_____________| |
|________________________________________________| |_________________|
_________________
| Sub-Graph [3] |
| _____________ |
| |Container [3]| |
| | [DMA-EP] | |
| |_____________| |
|_________________|
This patchset adds very minimal support for AudioReach which includes
supporting sub-graphs containing CODEC DMA ports and simple PCM
Decoder/Encoder and Logger Modules. Additional capabilities will
be built over time to expose features offered by AudioReach.
This patchset is Tested on SM8250 SoC based Qualcomm Robotics Platform RB5
and SM9250 MTP with WSA881X Smart Speaker Amplifiers, DMICs connected via
VA Macro and WCD938x Codec connected via TX and RX Macro.
Sample WIP ASoC graphs are available at
https://git.linaro.org/people/srinivas.kandagatla/audioreach-topology.git/
Thanks,
srini
Srinivas Kandagatla (13):
soc: dt-bindings: qcom: add gpr bindings
soc: qcom: add gpr driver support
ASoC: qcom: dt-bindings: add bindings Audio Processing manager
ASoC: qcom: audioreach: add basic pkt alloc support
ASoC: qcom: audioreach: add q6apm support
ASoC: qcom: audioreach: add module configuration command helpers
ASoC: qcom: audioreach: add topology support
ASoC: qcom: audioreach: add q6apm-dai support
ASoC: qcom: audioreach: add bedai support
ASoC: qcom: dt-bindings: add bindings for Proxy Resource Manager
ASoC: qcom: audioreach: add q6prm support
ASoC: qcom: dt-bindings: add audioreach soundcard compatibles
ASoC: qcom: sm8250: Add audioreach support
.../bindings/soc/qcom/qcom,gpr.yaml | 74 ++
.../devicetree/bindings/sound/qcom,q6apm.yaml | 72 ++
.../devicetree/bindings/sound/qcom,q6prm.yaml | 43 +
.../bindings/sound/qcom,sm8250.yaml | 43 +
drivers/soc/qcom/Kconfig | 9 +
drivers/soc/qcom/Makefile | 1 +
drivers/soc/qcom/gpr.c | 487 ++++++++
include/dt-bindings/soc/qcom,gpr.h | 18 +
include/dt-bindings/sound/qcom,q6apm.h | 215 ++++
include/dt-bindings/sound/qcom,q6prm.h | 205 ++++
include/linux/soc/qcom/gpr.h | 127 ++
include/uapi/sound/snd_ar_tokens.h | 200 +++
sound/soc/qcom/Kconfig | 20 +
sound/soc/qcom/Makefile | 1 +
sound/soc/qcom/audioreach/Makefile | 12 +
sound/soc/qcom/audioreach/audioreach.c | 1082 +++++++++++++++++
sound/soc/qcom/audioreach/audioreach.h | 649 ++++++++++
sound/soc/qcom/audioreach/q6apm-bedai.c | 377 ++++++
sound/soc/qcom/audioreach/q6apm-dai.c | 494 ++++++++
sound/soc/qcom/audioreach/q6apm.c | 962 +++++++++++++++
sound/soc/qcom/audioreach/q6apm.h | 171 +++
sound/soc/qcom/audioreach/q6prm.c | 412 +++++++
sound/soc/qcom/audioreach/topology.c | 848 +++++++++++++
sound/soc/qcom/sm8250.c | 144 ++-
24 files changed, 6665 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,gpr.yaml
create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6apm.yaml
create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6prm.yaml
create mode 100644 drivers/soc/qcom/gpr.c
create mode 100644 include/dt-bindings/soc/qcom,gpr.h
create mode 100644 include/dt-bindings/sound/qcom,q6apm.h
create mode 100644 include/dt-bindings/sound/qcom,q6prm.h
create mode 100644 include/linux/soc/qcom/gpr.h
create mode 100644 include/uapi/sound/snd_ar_tokens.h
create mode 100644 sound/soc/qcom/audioreach/Makefile
create mode 100644 sound/soc/qcom/audioreach/audioreach.c
create mode 100644 sound/soc/qcom/audioreach/audioreach.h
create mode 100644 sound/soc/qcom/audioreach/q6apm-bedai.c
create mode 100644 sound/soc/qcom/audioreach/q6apm-dai.c
create mode 100644 sound/soc/qcom/audioreach/q6apm.c
create mode 100644 sound/soc/qcom/audioreach/q6apm.h
create mode 100644 sound/soc/qcom/audioreach/q6prm.c
create mode 100644 sound/soc/qcom/audioreach/topology.c
--
2.21.0