/**
 * @file include/di/drv/xbee/checksum.h
 * @ingroup XBee
 * @brief DI XBee checksum functions.
 * @date March 30, 2017
 * @author svlies
 * @copyright 2017 Dual Inventive Technology Centre B.V.
 *
 * DI XBee checksum functions.
 * @{
 */

#ifndef LIBDI_INCLUDE_DI_DRV_XBEE_CHECKSUM_H_
#define LIBDI_INCLUDE_DI_DRV_XBEE_CHECKSUM_H_

#include <di/buffer.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * Check if reveived frame in ctx buffer is correct.
 * @param buf Buffer with the frame to verify.
 * @return Returns DNOK if XBee frame is correct.
 */
di_errno_t di_drv_xbee_checksum_verify(struct di_buffer *buf);

/**
 * Generates a checksum for the data in the buffer.
 * @param buf Buffer with the frame the make a checksum.
 * @param size Size of the buffer.
 * @return Returns the checksum of the data in the buffer.
 */
uint8_t di_drv_xbee_checksum_calc(const uint8_t *buf, size_t size);

#ifdef __cplusplus
}
#endif

/** @} */

#endif /* LIBDI_INCLUDE_DI_DRV_XBEE_CHECKSUM_H_ */