/** * \file * * \brief Global interrupt management for 8- and 32-bit AVR * * Copyright (c) 2010-2016 Atmel Corporation. All rights reserved. * * \asf_license_start * * \page License * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The name of Atmel may not be used to endorse or promote products derived * from this software without specific prior written permission. * * 4. This software may only be redistributed and used in connection with an * Atmel microcontroller product. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * \asf_license_stop * */ /* * Support and FAQ: visit Atmel Support */ #ifndef UTILS_INTERRUPT_H #define UTILS_INTERRUPT_H #include #if XMEGA || MEGA # include "interrupt/interrupt_avr8.h" #elif UC3 # include "interrupt/interrupt_avr32.h" #elif SAM || SAMB # include "interrupt/interrupt_sam_nvic.h" #else # error Unsupported device. #endif /** * \defgroup interrupt_group Global interrupt management * * This is a driver for global enabling and disabling of interrupts. * * @{ */ #if defined(__DOXYGEN__) /** * \def CONFIG_INTERRUPT_FORCE_INTC * \brief Force usage of the ASF INTC driver * * Predefine this symbol when preprocessing to force the use of the ASF INTC driver. * This is useful to ensure compatibility across compilers and shall be used only when required * by the application needs. */ # define CONFIG_INTERRUPT_FORCE_INTC #endif //! \name Global interrupt flags //@{ /** * \typedef irqflags_t * \brief Type used for holding state of interrupt flag */ /** * \def cpu_irq_enable * \brief Enable interrupts globally */ /** * \def cpu_irq_disable * \brief Disable interrupts globally */ /** * \fn irqflags_t cpu_irq_save(void) * \brief Get and clear the global interrupt flags * * Use in conjunction with \ref cpu_irq_restore. * * \return Current state of interrupt flags. * * \note This function leaves interrupts disabled. */ /** * \fn void cpu_irq_restore(irqflags_t flags) * \brief Restore global interrupt flags * * Use in conjunction with \ref cpu_irq_save. * * \param flags State to set interrupt flag to. */ /** * \fn bool cpu_irq_is_enabled_flags(irqflags_t flags) * \brief Check if interrupts are globally enabled in supplied flags * * \param flags Currents state of interrupt flags. * * \return True if interrupts are enabled. */ /** * \def cpu_irq_is_enabled * \brief Check if interrupts are globally enabled * * \return True if interrupts are enabled. */ //@} //! @} /** * \ingroup interrupt_group * \defgroup interrupt_deprecated_group Deprecated interrupt definitions */ #endif /* UTILS_INTERRUPT_H */