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circuitpython/ports/atmel-samd/eic_handler.c

65 lines
2.2 KiB

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Dan Halbert for Adafruit Industries
*
* 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.
*/
#include "common-hal/pulseio/PulseIn.h"
#include "common-hal/ps2io/Ps2.h"
#include "common-hal/rotaryio/IncrementalEncoder.h"
#include "shared-bindings/microcontroller/__init__.h"
//#include "samd/external_interrupts.h"
#include "eic_handler.h"
// Which handler should be called for a particular channel?
static uint8_t eic_channel_handler[EIC_EXTINT_NUM];
void set_eic_handler(uint8_t channel, uint8_t eic_handler) {
eic_channel_handler[channel] = eic_handler;
}
void shared_eic_handler(uint8_t channel) {
uint8_t handler = eic_channel_handler[channel];
switch (handler) {
#if CIRCUITPY_PULSEIO
case EIC_HANDLER_PULSEIN:
pulsein_interrupt_handler(channel);
break;
#endif
#if CIRCUITPY_PS2IO
case EIC_HANDLER_PS2:
ps2_interrupt_handler(channel);
break;
#endif
#if CIRCUITPY_ROTARYIO
case EIC_HANDLER_INCREMENTAL_ENCODER:
incrementalencoder_interrupt_handler(channel);
break;
#endif
default:
break;
}
}