From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
This patchset aims to provide a very basic version of QCOM DSP based audio support which is available in downstream andriod kernels. This patchset only support Digital audio based for HDMI-RX and will add support to other features as we move on.
QDSP has both static and dynamic modules. static modules like AFE (Audio FrontEnd), ADM (Audio Device Manager), ASM(Audio Stream Manager) and CORE to provide this audio services. All these services use APR (Asynchronous Packet Router) protocol via smd/glink transport to communicate with Application processor. More details on each module is availble in there respective patch.
This patchset is tested on DB820c, with HDMI audio playback on top of mainline, also tested slimbus analog audio using wcd9355 with an additional small patch.
Here is block diagram to give a quick overview of the components
+---------+ +---------+ +---------+ | q6asm | |q6routing| | q6afe | | fedai | <------> | mixers | <-----> | bedai | +---------+ +---------+ +---------+ ^ ^ ^ | | | | +------------------+----------------+ | | | | | | v v v v v +---------+ +---------+ +---------+ | q6ASM | | q6ADM | | q6AFE | +---------+ +---------+ +---------+ ^ ^ ^ ^ | | | CPU Side | ------+---------------------+-------------------+-------- | | | | |APR(smd/glink) | | | | | +------------------+----------------+ | | | | | | +-----+--+-----------------------------------+--+------- | | | | | QDSP Side | v v v v v v +---------+ +---------+ +---------+ | ASM | <------> | ADM | <-----> | AFE | +---------+ +---------+ +---------+ ^ | +-------------------+ | ---------------------------+-------------------------- | Audio I/O | v v +--------------------------------------------------+ | Audio devices | | CODEC | HDMI-TX | PCM | SLIMBUS | I2S |MI2S |...| | | +--------------------------------------------------+
Changes since RFC: - Converted APR driver to proper bus driver - Added API version info to apr devices - Added q6core driver. - Fixed various issues spotted by Banajit and Kasam. - Added kernel doc to exported symbols. - renamed qdsp6v2 to qdsp6 as api version info can be used from apr device. - removed unnecessary dt bindings for apr devices.
Srinivas Kandagatla (15): dt-bindings: soc: qcom: Add bindings for APR bus soc: qcom: add support to APR bus driver ASoC: qcom: qdsp6: Add common qdsp6 helper functions ASoC: qcom: qdsp6: Add support to Q6AFE ASoC: qcom: qdsp6: Add support to Q6ADM ASoC: qcom: qdsp6: Add support to Q6ASM ASoC: qcom: q6asm: Add support to memory map and unmap ASoC: qcom: q6asm: add support to audio stream apis ASoC: qcom: qdsp6: Add support to Q6CORE ASoC: qcom: qdsp6: Add support to q6routing driver ASoC: qcom: qdsp6: Add support to q6afe dai driver ASoC: qcom: qdsp6: Add support to q6asm dai driver dt-bindings: sound: qcom: Add devicetree bindings for apq8096 ASoC: qcom: apq8096: Add db820c machine driver arm64: dts: msm8996: db820c: Add sound card support
.../devicetree/bindings/soc/qcom/qcom,apr.txt | 28 + .../devicetree/bindings/sound/qcom,apq8096.txt | 22 + arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 5 + arch/arm64/boot/dts/qcom/msm8996.dtsi | 33 + drivers/soc/qcom/Kconfig | 8 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/apr.c | 395 +++++++ include/linux/mod_devicetable.h | 13 + include/linux/soc/qcom/apr.h | 174 +++ sound/soc/qcom/Kconfig | 51 + sound/soc/qcom/Makefile | 5 + sound/soc/qcom/apq8096.c | 124 +++ sound/soc/qcom/qdsp6/Makefile | 7 + sound/soc/qcom/qdsp6/common.h | 225 ++++ sound/soc/qcom/qdsp6/q6adm.c | 602 +++++++++++ sound/soc/qcom/qdsp6/q6adm.h | 24 + sound/soc/qcom/qdsp6/q6afe-dai.c | 241 +++++ sound/soc/qcom/qdsp6/q6afe.c | 503 +++++++++ sound/soc/qcom/qdsp6/q6afe.h | 30 + sound/soc/qcom/qdsp6/q6asm-dai.c | 534 ++++++++++ sound/soc/qcom/qdsp6/q6asm.c | 1119 ++++++++++++++++++++ sound/soc/qcom/qdsp6/q6asm.h | 61 ++ sound/soc/qcom/qdsp6/q6core.c | 227 ++++ sound/soc/qcom/qdsp6/q6routing.c | 386 +++++++ sound/soc/qcom/qdsp6/q6routing.h | 9 + 25 files changed, 4827 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt create mode 100644 Documentation/devicetree/bindings/sound/qcom,apq8096.txt create mode 100644 drivers/soc/qcom/apr.c create mode 100644 include/linux/soc/qcom/apr.h create mode 100644 sound/soc/qcom/apq8096.c create mode 100644 sound/soc/qcom/qdsp6/Makefile create mode 100644 sound/soc/qcom/qdsp6/common.h create mode 100644 sound/soc/qcom/qdsp6/q6adm.c create mode 100644 sound/soc/qcom/qdsp6/q6adm.h create mode 100644 sound/soc/qcom/qdsp6/q6afe-dai.c create mode 100644 sound/soc/qcom/qdsp6/q6afe.c create mode 100644 sound/soc/qcom/qdsp6/q6afe.h create mode 100644 sound/soc/qcom/qdsp6/q6asm-dai.c create mode 100644 sound/soc/qcom/qdsp6/q6asm.c create mode 100644 sound/soc/qcom/qdsp6/q6asm.h create mode 100644 sound/soc/qcom/qdsp6/q6core.c create mode 100644 sound/soc/qcom/qdsp6/q6routing.c create mode 100644 sound/soc/qcom/qdsp6/q6routing.h