diff options
author | Marti Bolivar <mbolivar@leaflabs.com> | 2011-03-07 13:11:54 -0500 |
---|---|---|
committer | Marti Bolivar <mbolivar@leaflabs.com> | 2011-03-11 16:24:44 -0500 |
commit | c8da1c3b7b6eb450138a00af9bbbee607f596837 (patch) | |
tree | 207777355d41dc8947d94665ef9a8bae8982805a /wirish/wirish_analog.cpp | |
parent | 5b07707cdaa6268e1a984727bb907a7b10e8ada7 (diff) | |
download | librambutan-c8da1c3b7b6eb450138a00af9bbbee607f596837.tar.gz librambutan-c8da1c3b7b6eb450138a00af9bbbee607f596837.zip |
[WIP] GPIO refactor: seems ok, ready for review
Diffstat (limited to 'wirish/wirish_analog.cpp')
-rw-r--r-- | wirish/wirish_analog.cpp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/wirish/wirish_analog.cpp b/wirish/wirish_analog.cpp new file mode 100644 index 0000000..a658184 --- /dev/null +++ b/wirish/wirish_analog.cpp @@ -0,0 +1,41 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2010 Perry Hung. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + *****************************************************************************/ + +/** + * @brief Arduino-compatible ADC implementation. + */ + +#include "libmaple.h" +#include "wirish.h" +#include "io.h" + +/* Assumes that the ADC has been initialized and that the pin is set + * to ANALOG_INPUT */ +uint32 analogRead(uint8 pin) { + if(PIN_MAP[pin].adc_channel == ADC_INVALID) { + return 0; + } + + return adc_read(ADC1, PIN_MAP[pin].adc_channel); +} |