/**
 * @file radio.h
 * @brief RADIO peripheral driver -- NRF_1Mbit proprietary mode.
 */
#pragma once
#include <stdint.h>

/** @brief Configure the RADIO peripheral (mode, packet format, address, CRC, power, channel). */
void radio_init(void);

/**
 * @brief Set the RF channel.
 * @param ch Channel index 0-39, maps to 2400+ch MHz (MAP=0).
 */
void radio_set_channel(uint8_t ch);

/**
 * @brief Transmit one packet synchronously.
 *
 * Loads @p data into the internal packet buffer, asserts TASKS_TXEN, and
 * returns after EVENTS_END fires.  The RADIO is DISABLED automatically via
 * the END_DISABLE shortcut before the function returns.
 *
 * @param data  Payload bytes.
 * @param len   Payload length (0-255 bytes).
 */
void radio_tx(const uint8_t *data, uint8_t len);

/** @brief Transmit a burst with FHSS hopping (not yet implemented). */
void radio_tx_burst(void);