From b16091659cc9a724a8800f77e631643b4ab089ad Mon Sep 17 00:00:00 2001 From: Ryan Date: Wed, 18 Aug 2021 18:20:25 +1000 Subject: Move USB Host Shield and Arduino core to `lib/` (#13973) --- .../arduino-1.0.1/cores/arduino/WInterrupts.c | 298 +++++++++++++++++++++ 1 file changed, 298 insertions(+) create mode 100644 lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c (limited to 'lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c') diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c b/lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c new file mode 100644 index 0000000000..8f3ec847f1 --- /dev/null +++ b/lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c @@ -0,0 +1,298 @@ +/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */ + +/* + Part of the Wiring project - http://wiring.uniandes.edu.co + + Copyright (c) 2004-05 Hernando Barragan + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General + Public License along with this library; if not, write to the + Free Software Foundation, Inc., 59 Temple Place, Suite 330, + Boston, MA 02111-1307 USA + + Modified 24 November 2006 by David A. Mellis + Modified 1 August 2010 by Mark Sproul +*/ + +#include +#include +#include +#include +#include + +#include "wiring_private.h" + +static volatile voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS]; +// volatile static voidFuncPtr twiIntFunc; + +void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) { + if(interruptNum < EXTERNAL_NUM_INTERRUPTS) { + intFunc[interruptNum] = userFunc; + + // Configure the interrupt mode (trigger on low input, any change, rising + // edge, or falling edge). The mode constants were chosen to correspond + // to the configuration bits in the hardware register, so we simply shift + // the mode into place. + + // Enable the interrupt. + + switch (interruptNum) { +#if defined(__AVR_ATmega32U4__) + // I hate doing this, but the register assignment differs between the 1280/2560 + // and the 32U4. Since avrlib defines registers PCMSK1 and PCMSK2 that aren't + // even present on the 32U4 this is the only way to distinguish between them. + case 0: + EICRA = (EICRA & ~((1<