97 lines
3.4 KiB
C
97 lines
3.4 KiB
C
/*!
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\file rc5_decode.h
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\brief the header file of rc5 infrared decoding
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\version 2021-10-30, V1.0.0, firmware for GD32W51x
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*/
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/*
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Copyright (c) 2021, GigaDevice Semiconductor Inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#ifndef RC5_DECODE_H
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#define RC5_DECODE_H
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#include "gd32w51x.h"
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/* rc5 frame structure */
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typedef struct
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{
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__IO uint8_t field_bit; /*!< field bit */
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__IO uint8_t toggle_bit; /*!< toggle bit field */
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__IO uint8_t address; /*!< address field */
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__IO uint8_t command; /*!< command field */
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} rc5_frame_struct;
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/* rc5 packet structure */
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typedef struct
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{
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__IO uint16_t data; /*!< rc5 data */
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__IO uint8_t status; /*!< rc5 status */
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__IO uint8_t last_bit; /*!< rc5 last bit */
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__IO uint8_t bit_count; /*!< rc5 bit count */
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} trc5_packet_struct;
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/* rc5 last bit type enum */
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enum rc5_last_bit_type
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{
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RC5_ZER,
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RC5_ONE,
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RC5_NAN,
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RC5_INV
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};
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typedef enum rc5_last_bit_type trc5_last_bit_type;
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#define RC5_1T_TIME 0x00
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#define RC5_2T_TIME 0x01
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#define RC5_WRONG_TIME 0xFF
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#define RC5_TIME_OUT_US 3600
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/* half bit period */
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#define RC5_T_US 900
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/* tolerance time */
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#define RC5_T_TOLERANCE_US 270
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#define RC5_NUMBER_OF_VALID_PULSE_LENGTH 2
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/* total bits */
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#define RC5_PACKET_BIT_COUNT 13
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/* packet struct for reception */
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#define RC5_PACKET_STATUS_EMPTY (uint16_t)(1<<0)
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void menu_rc5decode_func(void);
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void rc5_decode_deinit(void);
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void rc5_decode_init(void);
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void rc5_decode(rc5_frame_struct *rc5_frame);
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void rc5_reset_packet(void);
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void rc5_data_sampling(uint16_t raw_pulse_length, uint8_t edge);
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#endif /* RC5_DECODE_H */
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