101 lines
3.2 KiB
C
101 lines
3.2 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 templates/hal_lld.c
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* @brief HAL Driver subsystem low level driver source template.
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* @addtogroup HAL_LLD
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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/*===========================================================================*/
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/* Low Level Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Low Level Driver local variables. */
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/*===========================================================================*/
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static LARGE_INTEGER nextcnt;
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static LARGE_INTEGER slice;
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/*===========================================================================*/
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/* Low Level Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Low Level Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Low Level Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level HAL driver initialization.
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*/
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void hal_lld_init(void) {
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WSADATA wsaData;
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/* Initialization.*/
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if (WSAStartup(2, &wsaData) != 0) {
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printf("Unable to locate a winsock DLL\n");
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exit(1);
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}
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printf("Win32 ChibiOS/RT simulator\n\n");
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if (!QueryPerformanceFrequency(&slice)) {
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printf("QueryPerformanceFrequency() error");
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exit(1);
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}
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printf("Core Frequency %u Hz\n", (int)slice.LowPart);
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slice.QuadPart /= CH_FREQUENCY;
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QueryPerformanceCounter(&nextcnt);
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nextcnt.QuadPart += slice.QuadPart;
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fflush(stdout);
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}
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/**
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* @brief Interrupt simulation.
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*/
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void ChkIntSources(void) {
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LARGE_INTEGER n;
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if (sd_lld_interrupt_pending()) {
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if (chSchIsRescRequiredExI())
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chSchDoRescheduleI();
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return;
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}
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// Interrupt Timer simulation (10ms interval).
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QueryPerformanceCounter(&n);
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if (n.QuadPart > nextcnt.QuadPart) {
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nextcnt.QuadPart += slice.QuadPart;
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chSysTimerHandlerI();
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if (chSchIsRescRequiredExI())
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chSchDoRescheduleI();
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}
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}
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/** @} */
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