mirror of https://github.com/joan2937/pigpio
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
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#ifndef IR_RX_HASHER_HPP
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#define IR_RX_HASHER_HPP
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#include <stdint.h>
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typedef void (*HasherCB_t)(uint32_t);
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class Hasher
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{
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/*
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This class forms a hash over the IR pulses generated by an
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IR remote.
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The remote key press is not converted into a code in the manner of
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the lirc module. No attempt is made to decode the type of protocol
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used by the remote. The hash is likely to be unique for different
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keys and different remotes but this is not guaranteed.
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This hashing process works for some remotes/protocols but not for
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others. The only way to find out if it works for one or more of
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your remotes is to try it and see.
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*/
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int mygpio, mytimeout;
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HasherCB_t mycallback;
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int in_code;
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uint32_t hash_val;
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int edges;
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uint32_t t1, t2, t3, t4;
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void _hash(int old_val, int new_val);
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void _callback(int gpio, int level, uint32_t tick);
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/* Need a static callback to link with C. */
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static void _callbackExt(int gpio, int level, uint32_t tick, void *user);
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public:
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Hasher(int gpio, HasherCB_t callback, int timeout=5);
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};
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#endif
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