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48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
// Copyright 20010 Alex Norman
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// writen by Alex Norman
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//
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// This file is part of avr-bytequeue.
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//
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// avr-bytequeue is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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//(at your option) any later version.
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//
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// avr-bytequeue is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with avr-bytequeue. If not, see <http://www.gnu.org/licenses/>.
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// AVR specific code
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// should be able to port to other systems by simply providing chip specific
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// implementations of the typedef and these functions
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#include "interrupt_setting.h"
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#if defined(__AVR__)
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# include <avr/interrupt.h>
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interrupt_setting_t store_and_clear_interrupt(void) {
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uint8_t sreg = SREG;
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cli();
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return sreg;
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}
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void restore_interrupt_setting(interrupt_setting_t setting) {
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SREG = setting;
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}
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#elif defined(__arm__)
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# include <ch.h>
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interrupt_setting_t store_and_clear_interrupt(void) {
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chSysLock();
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return 0;
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}
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void restore_interrupt_setting(interrupt_setting_t setting) {
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chSysUnlock();
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}
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#endif
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