diff --git a/190725_FreeRTOS_IoT_Libs_Task_Pool_and_MQTT_Preview/FreeRTOS/Demo/CORTEX_M7_SAME70_Xplained_AtmelStudio/src/ASF/common/utils/interrupt/interrupt_sam_nvic.c b/190725_FreeRTOS_IoT_Libs_Task_Pool_and_MQTT_Preview/FreeRTOS/Demo/CORTEX_M7_SAME70_Xplained_AtmelStudio/src/ASF/common/utils/interrupt/interrupt_sam_nvic.c new file mode 100644 index 0000000..9940ce7 --- /dev/null +++ b/190725_FreeRTOS_IoT_Libs_Task_Pool_and_MQTT_Preview/FreeRTOS/Demo/CORTEX_M7_SAME70_Xplained_AtmelStudio/src/ASF/common/utils/interrupt/interrupt_sam_nvic.c
@@ -0,0 +1,86 @@ +/** + * \file + * + * \brief Global interrupt management for SAM D20, SAM3 and SAM4 (NVIC based) + * + * Copyright (c) 2012-2015 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 <a href="http://www.atmel.com/design-support/">Atmel Support</a> + */ + +#include "interrupt_sam_nvic.h" + +#if !defined(__DOXYGEN__) +/* Deprecated - global flag to determine the global interrupt state. Required by + * QTouch library, however new applications should use cpu_irq_is_enabled() + * which probes the true global interrupt state from the CPU special registers. + */ +volatile bool g_interrupt_enabled = true; +#endif + +void cpu_irq_enter_critical(void) +{ + if (cpu_irq_critical_section_counter == 0) { + if (cpu_irq_is_enabled()) { + cpu_irq_disable(); + cpu_irq_prev_interrupt_state = true; + } else { + /* Make sure the to save the prev state as false */ + cpu_irq_prev_interrupt_state = false; + } + + } + + cpu_irq_critical_section_counter++; +} + +void cpu_irq_leave_critical(void) +{ + /* Check if the user is trying to leave a critical section when not in a critical section */ + Assert(cpu_irq_critical_section_counter > 0); + + cpu_irq_critical_section_counter--; + + /* Only enable global interrupts when the counter reaches 0 and the state of the global interrupt flag + was enabled when entering critical state */ + if ((cpu_irq_critical_section_counter == 0) && (cpu_irq_prev_interrupt_state)) { + cpu_irq_enable(); + } +} +
diff --git a/190725_FreeRTOS_IoT_Libs_Task_Pool_and_MQTT_Preview/FreeRTOS/Demo/CORTEX_M7_SAME70_Xplained_AtmelStudio/src/ASF/common/utils/interrupt/interrupt_sam_nvic.h b/190725_FreeRTOS_IoT_Libs_Task_Pool_and_MQTT_Preview/FreeRTOS/Demo/CORTEX_M7_SAME70_Xplained_AtmelStudio/src/ASF/common/utils/interrupt/interrupt_sam_nvic.h new file mode 100644 index 0000000..a019085 --- /dev/null +++ b/190725_FreeRTOS_IoT_Libs_Task_Pool_and_MQTT_Preview/FreeRTOS/Demo/CORTEX_M7_SAME70_Xplained_AtmelStudio/src/ASF/common/utils/interrupt/interrupt_sam_nvic.h
@@ -0,0 +1,189 @@ +/** + * \file + * + * \brief Global interrupt management for SAM D20, SAM3 and SAM4 (NVIC based) + * + * Copyright (c) 2012-2015 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 <a href="http://www.atmel.com/design-support/">Atmel Support</a> + */ + +#ifndef UTILS_INTERRUPT_INTERRUPT_H +#define UTILS_INTERRUPT_INTERRUPT_H + +#include <compiler.h> +#include <parts.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \weakgroup interrupt_group + * + * @{ + */ + +/** + * \name Interrupt Service Routine definition + * + * @{ + */ + +/** + * \brief Define service routine + * + * \note For NVIC devices the interrupt service routines are predefined to + * add to vector table in binary generation, so there is no service + * register at run time. The routine collections are in exceptions.h. + * + * Usage: + * \code + ISR(foo_irq_handler) + { + // Function definition + ... + } +\endcode + * + * \param func Name for the function. + */ +# define ISR(func) \ + void func (void) + +/** + * \brief Initialize interrupt vectors + * + * For NVIC the interrupt vectors are put in vector table. So nothing + * to do to initialize them, except defined the vector function with + * right name. + * + * This must be called prior to \ref irq_register_handler. + */ +# define irq_initialize_vectors() \ + do { \ + } while(0) + +/** + * \brief Register handler for interrupt + * + * For NVIC the interrupt vectors are put in vector table. So nothing + * to do to register them, except defined the vector function with + * right name. + * + * Usage: + * \code + irq_initialize_vectors(); + irq_register_handler(foo_irq_handler); +\endcode + * + * \note The function \a func must be defined with the \ref ISR macro. + * \note The functions prototypes can be found in the device exception header + * files (exceptions.h). + */ +# define irq_register_handler(int_num, int_prio) \ + NVIC_ClearPendingIRQ( (IRQn_Type)int_num); \ + NVIC_SetPriority( (IRQn_Type)int_num, int_prio); \ + NVIC_EnableIRQ( (IRQn_Type)int_num); \ + +//@} + +# define cpu_irq_enable() \ + do { \ + g_interrupt_enabled = true; \ + __DMB(); \ + __enable_irq(); \ + } while (0) +# define cpu_irq_disable() \ + do { \ + __disable_irq(); \ + __DMB(); \ + g_interrupt_enabled = false; \ + } while (0) + +typedef uint32_t irqflags_t; + +#if !defined(__DOXYGEN__) +extern volatile bool g_interrupt_enabled; +#endif + +#define cpu_irq_is_enabled() (__get_PRIMASK() == 0) + +static volatile uint32_t cpu_irq_critical_section_counter; +static volatile bool cpu_irq_prev_interrupt_state; + +static inline irqflags_t cpu_irq_save(void) +{ + irqflags_t flags = cpu_irq_is_enabled(); + cpu_irq_disable(); + return flags; +} + +static inline bool cpu_irq_is_enabled_flags(irqflags_t flags) +{ + return (flags); +} + +static inline void cpu_irq_restore(irqflags_t flags) +{ + if (cpu_irq_is_enabled_flags(flags)) + cpu_irq_enable(); +} + +void cpu_irq_enter_critical(void); +void cpu_irq_leave_critical(void); + +/** + * \weakgroup interrupt_deprecated_group + * @{ + */ + +#define Enable_global_interrupt() cpu_irq_enable() +#define Disable_global_interrupt() cpu_irq_disable() +#define Is_global_interrupt_enabled() cpu_irq_is_enabled() + +//@} + +//@} + +#ifdef __cplusplus +} +#endif + +#endif /* UTILS_INTERRUPT_INTERRUPT_H */