41e899108a
Yay, it just worked! Still, while we're here, touch up the make-up on wirish_analog.cpp. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
/******************************************************************************
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* The MIT License
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*
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* Copyright (c) 2010 Perry Hung.
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* Copyright (c) 2011, 2012 LeafLabs, LLC.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included 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
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*****************************************************************************/
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/**
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* @file wirish/wirish_analog.cpp
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* @brief Wiring-style analogRead() implementation.
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*/
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#include <wirish/io.h>
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#include <libmaple/adc.h>
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#include <wirish/boards.h>
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/* Unlike Wiring and Arduino, this assumes that the pin's mode is set
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* to INPUT_ANALOG. That's faster, but it does require some extra work
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* on the user's part. Not too much, we think ;). */
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uint16 analogRead(uint8 pin) {
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const adc_dev *dev = PIN_MAP[pin].adc_device;
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if (dev == NULL) {
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return 0;
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}
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return adc_read(dev, PIN_MAP[pin].adc_channel);
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}
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