skarg
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2009 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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#include "hardware.h"
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static uint8_t Address_Switch;
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void input_task(
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void)
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{
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uint8_t value;
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static uint8_t old_value = 0;
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value = BITMASK_CHECK(PINA, 0x7F);
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if (value != old_value) {
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old_value = value;
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} else {
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if (old_value != Address_Switch) {
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Address_Switch = old_value;
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}
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}
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}
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uint8_t input_address(
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void)
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{
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return Address_Switch;
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}
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void input_init(
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void)
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{
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/* configure the port pins */
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BITMASK_CLEAR(DDRA,
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_BV(DDA0) | _BV(DDA1) | _BV(DDA2) | _BV(DDA3) | _BV(DDA4) | _BV(DDA5) |
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_BV(DDA6)
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);
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}
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