diff options
Diffstat (limited to 'mpm/lib/spi/spi_config.h')
-rw-r--r-- | mpm/lib/spi/spi_config.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/mpm/lib/spi/spi_config.h b/mpm/lib/spi/spi_config.h new file mode 100644 index 000000000..a29a9bc64 --- /dev/null +++ b/mpm/lib/spi/spi_config.h @@ -0,0 +1,44 @@ +#pragma once + +#include "../mykonos/adi/common.h" + +// contains information about the spi configuration + +struct spi_device_settings_t +{ + uint8_t writeBitPolarity; + uint8_t longInstructionWord; ///< 1 = 16bit instruction word, 0 = 8bit instruction word + uint8_t MSBFirst; ///< 1 = MSBFirst, 0 = LSBFirst + uint8_t CPHA; ///< clock phase, sets which clock edge the data updates (valid 0 or 1) + uint8_t CPOL; ///< clock polarity 0 = clock starts low, 1 = clock starts high + uint8_t enSpiStreaming; ///< Not implemented. SW feature to improve SPI throughput. + uint8_t autoIncAddrUp; ///< Not implemented. For SPI Streaming, set address increment direction. 1= next addr = addr+1, 0:addr = addr-1 + uint8_t fourWireMode; ///< 1: Use 4-wire SPI, 0: 3-wire SPI (SDIO pin is bidirectional). NOTE: ADI's FPGA platform always uses 4-wire mode. + uint32_t spiClkFreq_Hz; +}; + +struct spi_hwd_settings_t +{ + uint8_t spidev_index; + uint8_t chip_select_index; +}; + +struct spi_full_settings_t +{ + spiSettings_t adi_settings; + spi_hwd_settings_t hwd_settings; +}; + +class spi_config_t +{ +public: + spi_config_t(spi_hwd_settings_t hwd_settings, spi_device_settings_t device_settings); + +private: + const spi_full_settings_t full_settings; + static spiSettings_t _convert_to_adi_settings(uint8_t chip_select_index, spi_device_settings_t device_settings); + +public: + const spiSettings_t* get_spi_settings() const; + static const spi_full_settings_t* recover_full_spi_settings(const spiSettings_t* settings); +}; |