#include "buffer.h"

// This implements a dedicated circular buffer for storing values
// from the ADC until they are read and processed by the detector.
// The function of the buffer is similar to a queue or FIFO.

// Uncomment for debug prints
// #define DEBUG

#if defined(DEBUG)
#include <stdio.h>
#include "xil_printf.h" // outbyte
#define DPRINTF(...) printf(__VA_ARGS__)
#else
#define DPRINTF(...)
#endif

#define BUFFER_SIZE 32768

typedef struct {
    uint32_t indexIn; // Points to the next open slot.
    uint32_t indexOut; // Points to the next element to be removed.
    uint32_t elementCount; // Number of elements in the buffer.
    buffer_data_t data[BUFFER_SIZE]; // Values are stored here.
} buffer_t;

volatile static buffer_t buf;


// Initialize the buffer to empty.
void buffer_init(void)
{
}

// Add a value to the buffer. Overwrite the oldest value if full.
void buffer_pushover(buffer_data_t value)
{
}

// Remove a value from the buffer. Return zero if empty.
buffer_data_t buffer_pop(void)
{
}

// Return the number of elements in the buffer.
uint32_t buffer_elements(void)
{
}

// Return the capacity of the buffer in elements.
uint32_t buffer_size(void)
{
}