# # For a description of the syntax of this configuration file, # see the file kconfig-language.txt in the NuttX tools repository. # config AUDIO_I2SCHAR bool "I2S character driver (for testing only)" default n depends on I2S && AUDIO ---help--- This selection enables a simple character driver that supports I2S transfers via a read() and write(). The intent of this driver is to support I2S testing. It is not an audio driver but does conform to some of the buffer management heuristics of an audio driver. It is not suitable for use in any real driver application in its current form. if AUDIO_I2SCHAR config AUDIO_I2SCHAR_RXTIMEOUT int "RX timeout" default 0 ---help--- This is a fixed timeout value that will be used for all receiver transfers. This is in units of system clock ticks (configurable). The special value of zero disables RX timeouts. Default: 0 config AUDIO_I2SCHAR_TXTIMEOUT int "TX timeout" default 0 ---help--- This is a fixed timeout value that will be used for all transmitter transfers. This is in units of system clock ticks (configurable). The special value of zero disables RX timeouts. Default: 0 endif # AUDIO_I2SCHAR config AUDIO_TONE bool "Audio Tone Generator using PWM" default n depends on PWM && DRIVERS_AUDIO ---help--- This driver enables the Audio Tone Generator for NuttX. if AUDIO_TONE endif # AUDIO_TONE config AUDIO_VS1053 bool "VS1053 codec chip" default n depends on AUDIO ---help--- Select to enable support for the VS1053 Audio codec by VLSI Solutions. This chip provides encoding and decoding of MP3, WMA, AAC and Ogg Vorbis format audio. It also has a general DSP which is user programmable to perform special audio (or any DSP) functions. if AUDIO_VS1053 config VS1053_DEVICE_COUNT int "Number of VS1053 devices attached" default 1 ---help--- Sets the number of VS1053 type devices availalbe to the system. This is required to reserve global, static lower-half driver context pointers for the DREQ ISR to use for lookup when it needs to signal that additional data is being requested. config VS1053_WORKER_STACKSIZE int "VS1053 worker thread stack size" default 768 ---help--- Stack size to use with the VS1053 worker thread. if AUDIO_DRIVER_SPECIFIC_BUFFERS config VS1053_NUM_BUFFERS int "Number of Audio Pipeline Buffers to use" default 2 ---help--- Sets the number of the Audio Pipeline Buffers used to deliver audio data to the VS1053 driver. The minimum you should set this is 2 buffers, which should be adequate for most media types. config VS1053_BUFFER_SIZE int "Size of Audio Pipeline Buffers to use" default 8192 ---help--- Sets the size of the Audio Pipeline Buffers used to deliver audio data to the VS1053 driver. The minimum you should set this is 2048 bytes. The larger the buffer, the better CPU performance. endif # AUDIO_DRIVER_SPECIFIC_BUFFERS endif # AUDIO_VS1053 config AUDIO_CS43L22 bool "CS43L22 audio chip" default n depends on AUDIO ---help--- Select to enable support for the CS43L22 Audio codec by Cirrus Logic. This chip is a lower level audio chip.. basically an exotic D-to-A. It includes no built-in support for audio CODECS The CS43L22 provides: - Low power consumption - High SNR - Stereo digital microphone input - Digital Dynamic Range Controller (compressor / limiter) - Digital sidetone mixing - Ground-referenced headphone driver - Ground-referenced line outputs NOTE: This driver also depends on both I2C and I2S support although that dependency is not explicit here. if AUDIO_CS43L22 config CS43L22_INITVOLUME int "CS43L22 initial volume setting" default 250 config CS43L22_INFLIGHT int "CS43L22 maximum in-flight audio buffers" default 2 config CS43L22_MSG_PRIO int "CS43L22 message priority" default 1 config CS43L22_BUFFER_SIZE int "CS43L22 preferred buffer size" default 8192 config CS43L22_NUM_BUFFERS int "CS43L22 preferred number of buffers" default 4 config CS43L22_WORKER_STACKSIZE int "CS43L22 worker thread stack size" default 768 config CS43L22_REGDUMP bool "CS43L22 register dump" default n ---help--- Enable logic to dump the contents of all CS43L22 registers. config CS43L22_CLKDEBUG bool "CS43L22 clock analysis" default n ---help--- Enable logic to analyze CS43L22 clock configuation. endif # AUDIO_CS43L22 config AUDIO_WM8776 bool "WM8776 audio chip" default n depends on AUDIO ---help--- Select to enable support for the WM8776 Audio codec by Wolfson Microelectonics. if AUDIO_WM8776 config WM8776_INFLIGHT int "WM8776 maximum in-flight audio buffers" default 2 config WM8776_MSG_PRIO int "WM8776 message priority" default 1 config WM8776_WORKER_STACKSIZE int "WM8776 worker thread stack size" default 768 config WM8776_SWAP_HPOUT bool "Swap WM8776 HP out signals" default n endif # AUDIO_WM8776 config AUDIO_WM8904 bool "WM8904 audio chip" default n depends on AUDIO ---help--- Select to enable support for the WM8904 Audio codec by Wolfson Microelectonics. This chip is a lower level audio chip.. basically an exotic D-to-A. It includes no built-in support for audio CODECS The WM8904 provides: - Low power consumption - High SNR - Stereo digital microphone input - Digital Dynamic Range Controller (compressor / limiter) - Digital sidetone mixing - Ground-referenced headphone driver - Ground-referenced line outputs NOTE: This driver also depends on both I2C and I2S support although that dependency is not explicit here. if AUDIO_WM8904 config WM8904_INITVOLUME int "WM8904 initial volume setting" default 250 config WM8904_INFLIGHT int "WM8904 maximum in-flight audio buffers" default 2 config WM8904_MSG_PRIO int "WM8904 message priority" default 1 config WM8904_BUFFER_SIZE int "WM8904 preferred buffer size" default 8192 config WM8904_NUM_BUFFERS int "WM8904 preferred number of buffers" default 4 config WM8904_WORKER_STACKSIZE int "WM8904 worker thread stack size" default 768 config WM8904_REGDUMP bool "WM8904 register dump" default n ---help--- Enable logic to dump the contents of all WM8904 registers. config WM8904_CLKDEBUG bool "WM8904 clock analysis" default n ---help--- Enable logic to analyze WM8904 clock configuation. endif # AUDIO_WM8904 config AUDIO_NULL bool "NULL audio device" default n depends on AUDIO ---help--- A do-nothinig audio device driver to simplify testing of audio decoders. if AUDIO_NULL config AUDIO_NULL_MSG_PRIO int "Null audio device message priority" default 1 config AUDIO_NULL_BUFFER_SIZE int "Null audio device preferred buffer size" default 8192 config AUDIO_NULL_NUM_BUFFERS int "Null audio device preferred number of buffers" default 4 config AUDIO_NULL_WORKER_STACKSIZE int "Null audio device worker thread stack size" default 768 endif # AUDIO_NULL