Add ES7210 audio ADC driver for NuttX implementing the audio
lower-half interface. Supports 4-channel recording via I2S with
configurable sample rate, bit depth, and mic gain.
- drivers/audio/es7210.c: Codec driver using LPWORK for async buffer
management, I2C register access, and NuttX audio buffer management
- drivers/audio/es7210.h: Internal register definitions and macros
- include/nuttx/audio/es7210.h: Public header with platform config
structure and es7210_initialize() API
- drivers/audio/Kconfig, Make.defs, CMakeLists.txt: Build system
integration for CONFIG_AUDIO_ES7210
Key implementation details:
- ES7210_SDP_NORMAL (normal I2S) instead of TDM, matching NuttX
I2S standard Philips mode
- ES7210_ADC_PGA_POWER_ON bit in gain registers REG43-46, required
for analog front-end amplifier power-on
- 50ms startup delay in es7210_start for codec clock stabilization
- I2S_IOCTL(AUDIOIOC_STOP) in es7210_stop to notify I2S layer,
preventing DMA from running without buffers after stop
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
1. Update all CMakeLists.txt to adapt to new layout
2. Fix cmake build break
3. Update all new file license
4. Fully compatible with current compilation environment(use configure.sh or cmake as you choose)
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How to test
From within nuttx/. Configure:
cmake -B build -DBOARD_CONFIG=sim/nsh -GNinja
cmake -B build -DBOARD_CONFIG=sim:nsh -GNinja
cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja
cmake -B build -DBOARD_CONFIG=lm3s6965-ek/qemu-flat -GNinja
(or full path in custom board) :
cmake -B build -DBOARD_CONFIG=$PWD/boards/sim/sim/sim/configs/nsh -GNinja
This uses ninja generator (install with sudo apt install ninja-build). To build:
$ cmake --build build
menuconfig:
$ cmake --build build -t menuconfig
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2. cmake/build: reformat the cmake style by cmake-format
https://github.com/cheshirekow/cmake_format
$ pip install cmakelang
$ for i in `find -name CMakeLists.txt`;do cmake-format $i -o $i;done
$ for i in `find -name *\.cmake`;do cmake-format $i -o $i;done
Co-authored-by: Matias N <matias@protobits.dev>
Signed-off-by: chao an <anchao@xiaomi.com>
wangjianyu3
simbit18
Alin Jerpelea
SPRESENSE
xuxin19
chao an