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

// SPDX-License-Identifier: GPL-2.0
// ir-sanyo-decoder.c - handle SANYO IR Pulse/Space protocol
//
// Copyright (C) 2011 by Mauro Carvalho Chehab
//
// This protocol uses the NEC protocol timings. However, data is formatted as:
//	13 bits Custom Code
//	13 bits NOT(Custom Code)
//	8 bits Key data
//	8 bits NOT(Key data)
//
// According with LIRC, this protocol is used on Sanyo, Aiwa and Chinon
// Information for this protocol is available at the Sanyo LC7461 datasheet.

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

#define SANYO_NBITS …
#define SANYO_UNIT …
#define SANYO_HEADER_PULSE …
#define SANYO_HEADER_SPACE …
#define SANYO_BIT_PULSE …
#define SANYO_BIT_0_SPACE …
#define SANYO_BIT_1_SPACE …
#define SANYO_REPEAT_SPACE …
#define SANYO_TRAILER_PULSE …
#define SANYO_TRAILER_SPACE …

enum sanyo_state { … };

/**
 * ir_sanyo_decode() - Decode one SANYO 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_sanyo_decode(struct rc_dev *dev, struct ir_raw_event ev)
{ … }

static const struct ir_raw_timings_pd ir_sanyo_timings = …;

/**
 * ir_sanyo_encode() - Encode a scancode as a stream of raw events
 *
 * @protocol:	protocol to encode
 * @scancode:	scancode to encode
 * @events:	array of raw ir events to write into
 * @max:	maximum size of @events
 *
 * Returns:	The number of events written.
 *		-ENOBUFS if there isn't enough space in the array to fit the
 *		encoding. In this case all @max events will have been written.
 */
static int ir_sanyo_encode(enum rc_proto protocol, u32 scancode,
			   struct ir_raw_event *events, unsigned int max)
{ … }

static struct ir_raw_handler sanyo_handler = …;

static int __init ir_sanyo_decode_init(void)
{ … }

static void __exit ir_sanyo_decode_exit(void)
{ … }

module_init(…) …;
module_exit(ir_sanyo_decode_exit);

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