// SPDX-License-Identifier: GPL-2.0-only /* ir-rc6-decoder.c - A decoder for the RC6 IR protocol * * Copyright (C) 2010 by David Härdeman <[email protected]> */ #include "rc-core-priv.h" #include <linux/module.h> /* * This decoder currently supports: * RC6-0-16 (standard toggle bit in header) * RC6-6A-20 (no toggle bit) * RC6-6A-24 (no toggle bit) * RC6-6A-32 (MCE version with toggle bit in body) */ #define RC6_UNIT … #define RC6_HEADER_NBITS … #define RC6_0_NBITS … #define RC6_6A_32_NBITS … #define RC6_6A_NBITS … #define RC6_PREFIX_PULSE … #define RC6_PREFIX_SPACE … #define RC6_BIT_START … #define RC6_BIT_END … #define RC6_TOGGLE_START … #define RC6_TOGGLE_END … #define RC6_SUFFIX_SPACE … #define RC6_MODE_MASK … #define RC6_STARTBIT_MASK … #define RC6_6A_MCE_TOGGLE_MASK … #define RC6_6A_LCC_MASK … #define RC6_6A_MCE_CC … #define RC6_6A_ZOTAC_CC … #define RC6_6A_KATHREIN_CC … #ifndef CHAR_BIT #define CHAR_BIT … #endif enum rc6_mode { … }; enum rc6_state { … }; static enum rc6_mode rc6_mode(struct rc6_dec *data) { … } /** * ir_rc6_decode() - Decode one RC6 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_rc6_decode(struct rc_dev *dev, struct ir_raw_event ev) { … } static const struct ir_raw_timings_manchester ir_rc6_timings[4] = …; /** * ir_rc6_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. * -EINVAL if the scancode is ambiguous or invalid. */ static int ir_rc6_encode(enum rc_proto protocol, u32 scancode, struct ir_raw_event *events, unsigned int max) { … } static struct ir_raw_handler rc6_handler = …; static int __init ir_rc6_decode_init(void) { … } static void __exit ir_rc6_decode_exit(void) { … } module_init(…) …; module_exit(ir_rc6_decode_exit); MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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