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/**
 * @file
 *   This file implements buffer management for frames received by nRF 802.15.4 radio driver.
 *
 */

#include "nrf_802154_rx_buffer.h"

#include <stddef.h>

#include "nrf_802154_config.h"

#if NRF_802154_RX_BUFFERS < 1
#error Not enough rx buffers in the 802.15.4 radio driver.
#endif

rx_buffer_t nrf_802154_rx_buffers[NRF_802154_RX_BUFFERS]; ///< Receive buffers.

void nrf_802154_rx_buffer_init(void)
{
    for (uint32_t i = 0; i < NRF_802154_RX_BUFFERS; i++)
    {
        nrf_802154_rx_buffers[i].free = true;
    }
}

rx_buffer_t * nrf_802154_rx_buffer_free_find(void)
{
    for (uint32_t i = 0; i < NRF_802154_RX_BUFFERS; i++)
    {
        if (nrf_802154_rx_buffers[i].free)
        {
            return &nrf_802154_rx_buffers[i];
        }
    }

    return NULL;
}