lib/fpga_control/public/gonk/fpga_control.h

#pragma once

#include <stdint.h>

#include "gonk/pin_config.h"
#include "pw_result/result.h"
#include "pw_span/span.h"
#include "pw_status/status.h"

using gonk::pin_config::PinConfig;
using pw::span;
using pw::Status;

namespace gonk::fpga_control {

const int BitstreamFileLength = 135100;

class FpgaControl {
public:
  FpgaControl(PinConfig *pin_config);

  Status StartConfig();
  Status FpgaConfigFromSerial();
  Status WaitForBitstreamStart();
  Status ReadBitstream();
  Status VerifyBitstream();
  Status SendBitstreamToFpga(const uint32_t config_timeout_ms = 2000);

private:
  PinConfig *pin_config_;
  int bitstream_file_position = 0;
  char bitstream_file[BitstreamFileLength];
  uint8_t read_buffer[4] = {0, 0, 0, 0};
  int bytes_written = 0;
};

} // namespace gonk::fpga_control