134 lines
3.7 KiB
C
134 lines
3.7 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS/RT.
|
|
|
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* @file templates/chcore.c
|
|
* @brief Port related template code.
|
|
* @addtogroup core
|
|
* @{
|
|
*/
|
|
|
|
#include <ch.h>
|
|
|
|
/*
|
|
* This file is a template of the system driver functions provided by a port.
|
|
* Some of the following functions may be implemented as macros in chcore.h if
|
|
* the implementer decides that there is an advantage in doing so, as example
|
|
* because performance concerns.
|
|
*/
|
|
|
|
/**
|
|
* @brief Port-related initialization code.
|
|
*
|
|
* @note This function is usually empty.
|
|
*/
|
|
void port_init(void){
|
|
}
|
|
|
|
/**
|
|
* @brief Kernel-lock action.
|
|
* @details Usually this function just disables interrupts but may perform more
|
|
* actions.
|
|
*/
|
|
void port_lock(void) {
|
|
}
|
|
|
|
/**
|
|
* @brief Kernel-unlock action.
|
|
* @details Usually this function just disables interrupts but may perform more
|
|
* actions.
|
|
*/
|
|
void port_unlock(void) {
|
|
}
|
|
|
|
/**
|
|
* @brief Kernel-lock action from an interrupt handler.
|
|
* @details This function is invoked before invoking I-class APIs from
|
|
* interrupt handlers. The implementation is architecture dependent, in its
|
|
* simplest form it is void.
|
|
*/
|
|
void port_lock_from_isr(void) {
|
|
}
|
|
|
|
/**
|
|
* @brief Kernel-unlock action from an interrupt handler.
|
|
* @details This function is invoked after invoking I-class APIs from interrupt
|
|
* handlers. The implementation is architecture dependent, in its simplest form
|
|
* it is void.
|
|
*/
|
|
void port_unlock_from_isr(void) {
|
|
}
|
|
|
|
/**
|
|
* @brief Disables all the interrupt sources.
|
|
*
|
|
* @note Of course non maskable interrupt sources are not included.
|
|
*/
|
|
void port_disable() {
|
|
}
|
|
|
|
/**
|
|
* @brief Disables the interrupt sources that are not supposed to preempt the kernel.
|
|
*/
|
|
void port_suspend(void) {
|
|
}
|
|
|
|
/**
|
|
* @brief Enables all the interrupt sources.
|
|
*/
|
|
void port_enable(void) {
|
|
}
|
|
|
|
/**
|
|
* @brief Enters an architecture-dependent halt mode.
|
|
* @details The function is meant to return when an interrupt becomes pending.
|
|
* The simplest implementation is an empty function but this will not take
|
|
* advantage of architecture-specific power saving modes.
|
|
*/
|
|
void port_wait_for_interrupt(void) {
|
|
}
|
|
|
|
/**
|
|
* @brief Halts the system.
|
|
* @details This function is invoked by the operating system when an
|
|
* unrecoverable error is detected (as example because a programming error in
|
|
* the application code that triggers an assertion while in debug mode).
|
|
*/
|
|
void port_halt(void) {
|
|
|
|
port_disable();
|
|
while (TRUE) {
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Performs a context switch between two threads.
|
|
* @details This is the most critical code in any port, this function
|
|
* is responsible for the context switch between 2 threads.
|
|
*
|
|
* @param otp the thread to be switched out
|
|
* @param ntp the thread to be switched in
|
|
* @note The implementation of this code affects <b>directly</b> the context
|
|
* switch performance so optimize here as much as you can.
|
|
*/
|
|
void port_switch(Thread *otp, Thread *ntp) {
|
|
}
|
|
|
|
/** @} */
|