class AmlPdmDevice
Defined at line 22 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
Presently assumes stereo input with both streams multiplexed on the same
PDM input line. (TODO: support up to 8 channels to refactor gauss to use this)
Public Methods
void AmlPdmDevice (const AmlPdmDevice & )Defined at line 24 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
void AmlPdmDevice (AmlPdmDevice && )Defined at line 24 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
AmlPdmDevice & operator= (const AmlPdmDevice & )Defined at line 24 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
AmlPdmDevice & operator= (AmlPdmDevice && )Defined at line 24 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
uint32_t GetBufferAlignment ()Get HW alignment required in the buffer in bytes.
Defined at line 36 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
std::unique_ptr<AmlPdmDevice> Create (fdf::MmioBuffer pdm_mmio, fdf::MmioBuffer audio_mmio, fdf::MmioBuffer audio2_mmio, ee_audio_mclk_src_t pdm_clk_src, uint32_t sclk_div, uint32_t dclk_div, aml_toddr_t toddr_dev, metadata::AmlVersion version)static
Defined at line 57 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
uint32_t fifo_depth ()Defined at line 77 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
zx_status_t SetBuffer (zx_paddr_t buf, size_t len)Sets the buffer/length pointers for dma engine
must resize in lower 32-bits of address space
Defined at line 309 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
uint32_t GetRingPosition ()Returns offset of dma pointer in the ring buffer
Defined at line 289 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
uint32_t GetDmaStatus ()Returns DMA status bits
Defined at line 295 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
uint32_t GetPdmStatus ()Returns PDM status bits
Defined at line 299 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
uint64_t Start ()Resets state of dma mechanisms and starts clocking data
in from pdm bus with data written to start of ring buffer
Defined at line 389 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
void Stop ()Stops clocking stat in off PDM bus
(physical pdm bus signals remain active)
Defined at line 400 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
void Sync ()Synchronize the state of PDM bus signals with fifo/dma engine
Defined at line 380 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
void SetMute (uint8_t mute_mask)Defined at line 280 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
void Shutdown ()shuts down toddr, stops writing data to ring buffer
Defined at line 405 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
void ConfigPdmIn (uint8_t mask)Takes channels out of reset and enables them.
Defined at line 364 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
void SetRate (uint32_t frames_per_second)Defined at line 284 of file ../../src/devices/lib/amlogic/aml-pdm-audio.cc
Protected Methods
void AmlPdmDevice (fdf::MmioBuffer pdm_mmio, fdf::MmioBuffer audio_mmio, fdf::MmioBuffer audio2_mmio, ee_audio_mclk_src_t clk_src, uint32_t sysclk_div, uint32_t dclk_div, aml_toddr_t toddr, uint32_t fifo_depth, metadata::AmlVersion version)Defined at line 84 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
void ~AmlPdmDevice ()Defined at line 98 of file ../../src/devices/lib/amlogic/include/soc/aml-common/aml-pdm-audio.h
Friends
class default_delete