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141 lines
4.2 KiB
C
141 lines
4.2 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT 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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ChibiOS/RT 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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---
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/**
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* @file templates/chcore.c
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* @brief Port related template code.
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* @details This file is a template of the system driver functions provided by
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* a port. Some of the following functions may be implemented as
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* macros in chcore.h if the implementer decides that there is an
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* advantage in doing so, as example because performance concerns.
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*
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* @addtogroup core
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* @details Non portable code templates.
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* @{
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*/
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#include "ch.h"
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/**
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* @brief Port-related initialization code.
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* @note This function is usually empty.
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*/
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void port_init(void) {
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}
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/**
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* @brief Kernel-lock action.
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* @details Usually this function just disables interrupts but may perform more
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* actions.
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*/
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void port_lock(void) {
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}
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/**
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* @brief Kernel-unlock action.
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* @details Usually this function just disables interrupts but may perform more
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* actions.
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*/
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void port_unlock(void) {
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}
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/**
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* @brief Kernel-lock action from an interrupt handler.
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* @details This function is invoked before invoking I-class APIs from
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* interrupt handlers. The implementation is architecture dependent,
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* in its simplest form it is void.
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*/
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void port_lock_from_isr(void) {
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}
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/**
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* @brief Kernel-unlock action from an interrupt handler.
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* @details This function is invoked after invoking I-class APIs from interrupt
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* handlers. The implementation is architecture dependent, in its
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* simplest form it is void.
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*/
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void port_unlock_from_isr(void) {
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}
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/**
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* @brief Disables all the interrupt sources.
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* @note Of course non maskable interrupt sources are not included.
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*/
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void port_disable(void) {
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}
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/**
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* @brief Disables the interrupt sources below kernel-level priority.
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* @note Interrupt sources above kernel level remains enabled.
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*/
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void port_suspend(void) {
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}
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/**
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* @brief Enables all the interrupt sources.
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*/
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void port_enable(void) {
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}
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/**
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* @brief Enters an architecture-dependent IRQ-waiting mode.
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* @details The function is meant to return when an interrupt becomes pending.
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* The simplest implementation is an empty function or macro but this
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* would not take advantage of architecture-specific power saving
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* modes.
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*/
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void port_wait_for_interrupt(void) {
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}
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/**
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* @brief Halts the system.
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* @details This function is invoked by the operating system when an
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* unrecoverable error is detected (as example because a programming
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* error in the application code that triggers an assertion while in
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* debug mode).
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*/
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void port_halt(void) {
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port_disable();
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while (TRUE) {
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}
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}
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/**
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* @brief Performs a context switch between two threads.
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* @details This is the most critical code in any port, this function
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* is responsible for the context switch between 2 threads.
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* @note The implementation of this code affects <b>directly</b> the context
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* switch performance so optimize here as much as you can.
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*
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* @param[in] ntp the thread to be switched in
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* @param[in] otp the thread to be switched out
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*/
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void port_switch(Thread *ntp, Thread *otp) {
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}
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/** @} */
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