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fuchsia / fuchsia / 28241e21ff35ca05198849eef9d4a015842b0f4b / . / src / media / audio / drivers / codecs / alc5663
tree: f584615cbe31016664716304f0e3fea886889bc8 [path history] [tgz]
  1. tests/
  2. alc5663.bind
  3. alc5663.cc
  4. alc5663.h
  5. alc5663_registers.h
  6. BUILD.gn
  7. i2c_client.h
  8. README.md
  9. tests.json
src/media/audio/drivers/codecs/alc5663/README.md

ALC5663 Codec Driver

The ALC5663 (Realtek RT5663) is a headphone amplifier / codec, with the following features:

  • Support for up to 32-bit, 192KHz, sterio signals.
  • Support for analog microphone recording on headset devices.
  • Support for plug detect, headsets with 3 or 4 buttons.

The ALC5663 is controlled via an I2C bus, and uses an I2S/PCM interface for audio data.

  • Controlled off an I2C bus.
  • Audio streamed via an I2S/PCM bus.

This driver is currently just a stub, not actually capable of recording or playing audio.

Errata

Implementation is based on the Realtek ALC5663 datasheet (Revision 0.66, 2017-04-06). Some differences from the datasheet in the driver implementation are as follows:

  • The datasheet states register addresses are 8-bits long (Table 16 and 17, page 28). In practice the register addresses are 16 bits long.