linux/drivers/media/rc/img-ir/img-ir-nec.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * ImgTec IR Decoder setup for NEC protocol.
 *
 * Copyright 2010-2014 Imagination Technologies Ltd.
 */

#include "img-ir-hw.h"
#include <linux/bitrev.h>
#include <linux/log2.h>

/* Convert NEC data to a scancode */
static int img_ir_nec_scancode(int len, u64 raw, u64 enabled_protocols,
			       struct img_ir_scancode_req *request)
{ … }

/* Convert NEC scancode to NEC data filter */
static int img_ir_nec_filter(const struct rc_scancode_filter *in,
			     struct img_ir_filter *out, u64 protocols)
{ … }

/*
 * NEC decoder
 * See also http://www.sbprojects.com/knowledge/ir/nec.php
 *        http://wiki.altium.com/display/ADOH/NEC+Infrared+Transmission+Protocol
 */
struct img_ir_decoder img_ir_nec = …;