RIOT/cpu/msp430/irq.c

/*
 * Copyright (C) 2014 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */

/**
 * @ingroup     cpu_msp430
* @{
 *
 * @file
 * @brief       ISR related variables
 *
 * @author      Kaspar Schleiser <kaspar@schleiser.de>
 * @author      Oliver Hahm <oliver.hahm@inria.fr>
 *
 * @}
 */

#include "irq.h"
#include "cpu.h"

volatile int __irq_is_in = 0;
added license headers and doxygen file information plus replaced tabs with spaces 2014-02-02 16:48:18 +01:00			`/*`
			`* Copyright (C) 2014 Freie Universität Berlin`
			`*`
doc: use lgplv2.1-short license header instead of lgpl-short-riot 2014-07-31 19:45:27 +02:00			`* This file is subject to the terms and conditions of the GNU Lesser`
			`* General Public License v2.1. See the file LICENSE in the top level`
			`* directory for more details.`
added license headers and doxygen file information plus replaced tabs with spaces 2014-02-02 16:48:18 +01:00			`*/`

			`/**`
cpu/msp430: reorganize code RIOT supports two distinct families of the MSP430: The [MSP430 x1xx] MCU family and the [MSP430 F2xx/G2xx] MCU family. For both incompatible MCU families the code was located in the msp430fxyz folder, resulting in case of the UART driver in particularly bizarre code looking roughly like this: #ifndef UART_USE_USCI /* implementation of x1xx peripheral ... / #else / implementation of F2xx/G2xx peripheral ... / #endif / zero shared code between both variants */ This splits the peripheral drivers for USCI and USART serial IP blocks into separate files and relocates everything in cpu/msp430, similar to how cpu/stm32 is organized. [MSP430 x1xx]: https://www.ti.com/lit/ug/slau049f/slau049f.pdf [MSP430 F2xx/G2xx]: https://www.ti.com/lit/ug/slau144k/slau144k.pdf 2023-06-13 15:56:24 +02:00			`* @ingroup cpu_msp430`
added license headers and doxygen file information plus replaced tabs with spaces 2014-02-02 16:48:18 +01:00			`* @{`
			`*`
everything: Remove filename from @file Doxygen command 2015-05-22 07:34:41 +02:00			`* @file`
cpu/msp430_common: Update to inline-able IRQ API - Updated to inline-able IRQ API - Improved robustness of functions - Added memory barrier to prevent the compiler from moving code outside of a critical section guarded by irq_disable() ... irq_restore() - Reduced overhead of `irq_disable()` - After clearing the global interrupt enable (GIE) bit, IRQs remain enabled for up to one CPU cycle - The previous implementation just added a nop to fill that cycle - This implementation uses the cycle for masking the return value - Reduced overhead of `irq_restore()` - Now only one CPU cycle is needed - `irq_disable()`, `irq_restore()`, and `irq_enable()` work now in constant time 2020-06-25 21:32:17 +02:00			`* @brief ISR related variables`
added license headers and doxygen file information plus replaced tabs with spaces 2014-02-02 16:48:18 +01:00			`*`
			`* @author Kaspar Schleiser <kaspar@schleiser.de>`
			`* @author Oliver Hahm <oliver.hahm@inria.fr>`
			`*`
			`* @}`
			`*/`

Removed all references to a specific MCU in "generic" files Inclusion of generic <msp430.h> file is done in cpu.h 2013-12-09 11:12:39 +01:00			`#include "irq.h"`
			`#include "cpu.h"`
* import from old firekernel repository 2010-09-22 15:10:42 +02:00
core: Fix/refactor function naming in core/incude/irq.h 2016-03-19 09:25:47 +01:00			`volatile int __irq_is_in = 0;`