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-rw-r--r--mpm/lib/spi/spi_config.h44
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);
+};