Subversion Repositories neorv32

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// # << NEORV32: neorv32_cfs.c - Custom Functions Subsystem (CFS) HW Driver (stub) >>              #
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// # BSD 3-Clause License                                                                          #
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// # Copyright (c) 2021, Stephan Nolting. All rights reserved.                                     #
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// # The NEORV32 Processor - https://github.com/stnolting/neorv32              (c) Stephan Nolting #
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/**********************************************************************//**
 * @file neorv32_cfs.c
 * @author Stephan Nolting
 * @brief Custom Functions Subsystem (CFS) HW driver source file.
 *
 * @warning There are no "real" CFS driver functions available here, because these functions are defined by the actual hardware.
 * @warning Hence, the CFS designer has to provide the actual driver functions.
 *
 * @note These functions should only be used if the CFS was synthesized (IO_CFS_EN = true).
 **************************************************************************/
 
#include "neorv32.h"
#include "neorv32_cfs.h"
 
 
/**********************************************************************//**
 * Check if custom functions unit 0 was synthesized.
 *
 * @return 0 if CFS was not synthesized, 1 if CFS is available.
 **************************************************************************/
int neorv32_cfs_available(void) {
 
  if (SYSINFO_FEATURES & (1 << SYSINFO_FEATURES_IO_CFS)) {
    return 1;
  }
  else {
    return 0;
  }
}