linux/drivers/media/rc/ir-xmp-decoder.c

// SPDX-License-Identifier: GPL-2.0-only
/* ir-xmp-decoder.c - handle XMP IR Pulse/Space protocol
 *
 * Copyright (C) 2014 by Marcel Mol
 *
 * - Based on info from http://www.hifi-remote.com
 * - Ignore Toggle=9 frames
 * - Ignore XMP-1 XMP-2 difference, always store 16 bit OBC
 */

#include <linux/bitrev.h>
#include <linux/module.h>
#include "rc-core-priv.h"

#define XMP_UNIT …
#define XMP_LEADER …
#define XMP_NIBBLE_PREFIX …
#define XMP_HALFFRAME_SPACE …
/* should be 80ms but not all duration supliers can go that high */
#define XMP_TRAILER_SPACE …

enum xmp_state { … };

/**
 * ir_xmp_decode() - Decode one XMP pulse or space
 * @dev:	the struct rc_dev descriptor of the device
 * @ev:		the struct ir_raw_event descriptor of the pulse/space
 *
 * This function returns -EINVAL if the pulse violates the state machine
 */
static int ir_xmp_decode(struct rc_dev *dev, struct ir_raw_event ev)
{ … }

static struct ir_raw_handler xmp_handler = …;

static int __init ir_xmp_decode_init(void)
{ … }

static void __exit ir_xmp_decode_exit(void)
{ … }

module_init(…) …;
module_exit(ir_xmp_decode_exit);

MODULE_LICENSE(…) …;
MODULE_AUTHOR(…) …;
MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;