From 4658ab7468b41649b2482b544973ea1ccb78ce12 Mon Sep 17 00:00:00 2001 From: Thibault RICHARD Date: Mon, 30 Apr 2012 13:45:53 +0200 Subject: [PATCH] [SAM] added missing interrupt files for libsam --- .../libsam/include/interrupt_sam_nvic.h | 165 ++++++++++++++++++ .../system/libsam/source/interrupt_sam_nvic.c | 45 +++++ 2 files changed, 210 insertions(+) create mode 100644 hardware/arduino/sam/system/libsam/include/interrupt_sam_nvic.h create mode 100644 hardware/arduino/sam/system/libsam/source/interrupt_sam_nvic.c diff --git a/hardware/arduino/sam/system/libsam/include/interrupt_sam_nvic.h b/hardware/arduino/sam/system/libsam/include/interrupt_sam_nvic.h new file mode 100644 index 000000000..38dbb2542 --- /dev/null +++ b/hardware/arduino/sam/system/libsam/include/interrupt_sam_nvic.h @@ -0,0 +1,165 @@ +/** + * \file + * + * \brief Global interrupt management for SAM3 and SAM4 (NVIC based) + * + * Copyright (c) 2012 Atmel Corporation. All rights reserved. + * + * \asf_license_start + * + * 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 + * + */ + +#ifndef UTILS_INTERRUPT_INTERRUPT_H +#define UTILS_INTERRUPT_INTERRUPT_H + +#include "../chip.h" + +/** + * \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(...) \ + do { \ + } while(0) + +//@} + +# define cpu_irq_enable() \ + do { \ + g_interrupt_enabled = 1; \ + __DMB(); \ + __enable_irq(); \ + } while (0) +# define cpu_irq_disable() \ + do { \ + __disable_irq(); \ + __DMB(); \ + g_interrupt_enabled = 0; \ + } while (0) + +typedef uint32_t irqflags_t; +extern int g_interrupt_enabled; + +static inline irqflags_t cpu_irq_save(void) +{ + irqflags_t flags = g_interrupt_enabled; + cpu_irq_disable(); + return flags; +} + +static inline int 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(); +} + +#define cpu_irq_is_enabled() g_interrupt_enabled + +/** + * \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() + +//@} + +//@} + +#endif /* UTILS_INTERRUPT_INTERRUPT_H */ diff --git a/hardware/arduino/sam/system/libsam/source/interrupt_sam_nvic.c b/hardware/arduino/sam/system/libsam/source/interrupt_sam_nvic.c new file mode 100644 index 000000000..c560797eb --- /dev/null +++ b/hardware/arduino/sam/system/libsam/source/interrupt_sam_nvic.c @@ -0,0 +1,45 @@ +/** + * \file + * + * \brief Global interrupt management for SAM3 and SAM4 (NVIC based) + * + * Copyright (c) 2012 Atmel Corporation. All rights reserved. + * + * \asf_license_start + * + * 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 + * + */ + +#include "interrupt_sam_nvic.h" + +//! Global NVIC interrupt enable status (by default it's enabled) +int g_interrupt_enabled = 1;