shared_pingpong.h

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#pragma once
 
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_board_ek_ra8d2_dualcore.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef enum : uintptr_t {
  k_cpu1_pingpong_shared_addr =
    (uintptr_t)k_ra8_board_shared_ram_base, 
} cpu1_pingpong_addr_t;

typedef enum : uint32_t {
  k_cpu1_pingpong_magic_ping  = 0x1234U,   
  k_cpu1_pingpong_magic_pong  = 0x4321U,   
  k_cpu1_pingpong_poll_budget = 2000000UL, 
} cpu1_pingpong_shared_const_t;

typedef struct {
  volatile uint32_t ping_seq;     
  volatile uint32_t pong_seq;     
  volatile uint32_t ping_payload; 
  volatile uint32_t pong_payload; 
} cpu1_pingpong_shared_t;

RA8_INTERNAL static inline volatile cpu1_pingpong_shared_t* internal_shared(void)
{
  return (volatile cpu1_pingpong_shared_t*)(uintptr_t)k_cpu1_pingpong_shared_addr;
}
 
#ifdef __cplusplus
}
#endif