b87ba1f526
Biggest problem was definitions in rtimer_arch.h -- we have a 16-bit rtimer_clock_t so this was overflowing and not working. Therefore most delays in the radio implementation didn't work.
134 lines
3.9 KiB
C
134 lines
3.9 KiB
C
/*
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* Copyright (c) 2016, Dr. Ralf Schlatterbeck Open Source Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \brief This module contains PicoRV32-specific code to implement
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* Interrupt handling for Timer and other interrupts
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*
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* \author Ralf Schlatterbeck <rsc@runtux.com>.
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*
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*/
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/** \addtogroup picorv32
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* @{
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*/
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/**
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* \defgroup picorv32 irq implementation
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* @{
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*/
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/**
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* \file
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* This file contains PicoRV32-specific code to implement
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* Interrupt handling for Timer and other interrupts
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*
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*/
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#include "irq.h"
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#include <stdio.h>
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#include <assert.h>
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/* Initially allow bus-error and illegal instruction / sbreak */
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static uint32_t irqmask = ~0x6;
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/* Interrupt table, for convenience we waste some memory for the lower 3
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* callbacks
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*/
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static void (*irq_callback_functions [MAXIRQ + 1])(void);
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/** \brief irq handler
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*/
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void
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irq_handler(uint32_t irq_mask, uint32_t *regs)
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{
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// Other interrupts
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if (irq_mask & (((1 << (MAXIRQ + 2)) - 1) & ~0x6)) {
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int i;
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for (i=0; i<=MAXIRQ; i++) {
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if (irq_mask & (1<<i)) {
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if (irq_callback_functions [i] == NULL) {
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printf ("Ooops: IRQ without callback: %d\n", i);
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} else {
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irq_callback_functions [i] ();
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}
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}
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}
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}
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// SBREAK, ILLINS or BUSERROR
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if (irq_mask & 6) {
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if (irq_mask & 4) {
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if (irq_callback_functions [2]) {
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irq_callback_functions [2] ();
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} else {
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printf("Bus Error!\n");
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icosoc_sbreak();
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}
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}
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if (irq_mask & 2) {
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if (irq_callback_functions [1]) {
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irq_callback_functions [1] ();
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} else {
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printf("Illegal Instruction or SBREAK!\n");
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icosoc_sbreak();
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}
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}
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}
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}
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void irq_init(void)
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{
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icosoc_irq(irq_handler);
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icosoc_maskirq(irqmask);
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}
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void register_irq (int irq, void (*callback)(void))
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{
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assert (irq <= MAXIRQ);
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irq_callback_functions [irq] = callback;
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}
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void enable_irq (int irq)
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{
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assert (irq <= MAXIRQ);
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if (irq_callback_functions [irq] != NULL) {
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irqmask &= (~(1<<irq));
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icosoc_maskirq(irqmask);
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}
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}
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void disable_irq (int irq)
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{
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assert (irq <= MAXIRQ);
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irqmask |= (1<<irq);
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icosoc_maskirq(irqmask);
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}
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/** @} */
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/** @} */
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