neorv32_gptmr.h

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// #################################################################################################
// # << NEORV32: neorv32_gptmr.h - General Purpose Timer (GPTMR) HW Driver >>                      #
// # ********************************************************************************************* #
// # BSD 3-Clause License                                                                          #
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// # Copyright (c) 2023, Stephan Nolting. All rights reserved.                                     #
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// # The NEORV32 Processor - https://github.com/stnolting/neorv32              (c) Stephan Nolting #
// #################################################################################################
 
 
/**********************************************************************/
#ifndef neorv32_gptmr_h
#define neorv32_gptmr_h
 
/**********************************************************************/
typedef volatile struct __attribute__((packed,aligned(4))) {
  uint32_t CTRL;           
  uint32_t THRES;          
  uint32_t COUNT;          
  const uint32_t reserved; 
} neorv32_gptmr_t;
 
#define NEORV32_GPTMR ((neorv32_gptmr_t*) (NEORV32_GPTMR_BASE))
 
enum NEORV32_GPTMR_CTRL_enum {
  GPTMR_CTRL_EN    = 0, 
  GPTMR_CTRL_PRSC0 = 1, 
  GPTMR_CTRL_PRSC1 = 2, 
  GPTMR_CTRL_PRSC2 = 3, 
  GPTMR_CTRL_MODE  = 4  
};
/**********************************************************************/
int  neorv32_gptmr_available(void);
void neorv32_gptmr_setup(int prsc, int mode, uint32_t threshold);
void neorv32_gptmr_disable(void);
void neorv32_gptmr_enable(void);
void neorv32_gptmr_restart(void);
#endif // neorv32_gptmr_h