bittware_axilite.h

#ifndef PFLIB_BITTWARE_AXILITE
#define PFLIB_BITTWARE_AXILITE 1
 
#include <stdint.h>
 
namespace pflib {
namespace bittware {
 
class AxiLite {
 public:
  AxiLite(const uint32_t base_address, const char* dev,
          const uint32_t mask_space = 0x3FFFFF);
  ~AxiLite();
 
  const char* dev() const;
 
  uint32_t read(uint32_t addr);
  void write(uint32_t addr, uint32_t value);
  uint32_t readMasked(uint32_t addr, uint32_t mask);
  void writeMasked(uint32_t addr, uint32_t mask, uint32_t value);
  bool isSet(uint32_t addr, int ibit) {
    return readMasked(addr, (1 << ibit)) != 0;
  }
  void setclear(uint32_t addr, int ibit, bool true_for_set = false) {
    writeMasked(addr, (1 << ibit), (true_for_set) ? (1) : (0));
  }
 
  uint32_t get_hardware_type() { return readMasked(0, 0xFFFF0000u); }
 
  uint32_t get_firmware_version() { return readMasked(0, 0xFFFF); }
 
 private:
  const char* dev_;    
  uint32_t base_;      // base address
  uint32_t mask_;      // mask (for safety)
  uint32_t antimask_;  // mask (for safety)
  int handle_;
  bool waswrite_;
};
 
}  // namespace bittware
}  // namespace pflib
 
#endif  // PFLIB_BITTWARE_AXILITE