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libbadgewxtools
ir_rxcheck.c
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#include <stdlib.h>
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#include <propeller.h>
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#include "
badgewxtools.h
"
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jm_ir_hdserial
*irself;
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int32_t ircom_rxcheck(
void
)
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{
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int32_t c;
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// Pulls c from receive buffer if available
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// -- returns -1 if buffer is empty
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c = -1;
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if
(irself->rxtail != irself->rxhead) {
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// something in buffer?
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// get it
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c = irself->rxbuf[irself->rxtail];
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// update tail pointer
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irself->rxtail = (++irself->rxtail) & BUF_MASK;
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}
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return
c;
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}
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/*
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TERMS OF USE: MIT License
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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badgewxtools.h
This library provides convenient functions for a variety of Parallax eBadge operations.
jm_ir_hdserial
Definition:
badgetools.h:1526
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