64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
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/*
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ChibiOS/RT - Copyright (C) 2006-2007 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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/**
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* @file LPC214x/vic.c
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* @brief LPC214x VIC peripheral support code.
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* @addtogroup LPC214x_VIC
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* @{
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*/
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#include <ch.h>
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#include "lpc214x.h"
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/**
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* @brief VIC Initialization.
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* @note Better reset everything in the VIC, it is a HUGE source of trouble.
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*/
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void vic_init(void) {
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int i;
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VIC *vic = VICBase;
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vic->VIC_IntSelect = 0; /* All sources assigned to IRQ. */
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vic->VIC_SoftIntClear = ALLINTMASK; /* No interrupts enforced */
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vic->VIC_IntEnClear = ALLINTMASK; /* All sources disabled. */
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for (i = 0; i < 16; i++) {
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vic->VIC_VectCntls[i] = 0;
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vic->VIC_VectAddrs[i] = 0;
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vic->VIC_VectAddr = 0;
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}
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}
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/**
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* @brief Initializes a VIC vector.
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* @details Set a vector for an interrupt source and enables it.
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* @param[in] handler the pointer to the IRQ service routine
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* @param[in] vector the vector number
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* @param[in] source the IRQ source to be associated to the vector
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*/
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void SetVICVector(void *handler, int vector, int source) {
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VIC *vicp = VICBase;
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vicp->VIC_VectAddrs[vector] = (IOREG32)handler;
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vicp->VIC_VectCntls[vector] = (IOREG32)(source | 0x20);
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}
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/** @} */
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