qmk_firmware/protocol/lufa/midi/bytequeue/interrupt_setting.c

//Copyright 20010 Alex Norman
//writen by Alex Norman 
//
//This file is part of avr-bytequeue.
//
//avr-bytequeue is free software: you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.
//
//avr-bytequeue 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 General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with avr-bytequeue.  If not, see <http://www.gnu.org/licenses/>.


//AVR specific code
//should be able to port to other systems by simply providing chip specific
//implementations of the typedef and these functions

#include "interrupt_setting.h"
#include <avr/interrupt.h>

interrupt_setting_t store_and_clear_interrupt(void) {
   uint8_t sreg = SREG;
   cli();
   return sreg;
}

void restore_interrupt_setting(interrupt_setting_t setting) {
   SREG = setting;
}