# # For a description of the syntax of this configuration file, # see misc/tools/kconfig-language.txt. # config AUDIO_I2SCHAR bool "I2S character driver (for testing only)" default n depends on I2S ---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 VS1053 bool "VS1053 codec chip" default n ---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 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 # VS1053