111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
/*
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ChibiOS/HAL - Copyright (C) 2006-2014 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file hal_lld.c
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* @brief WIN32 simulator HAL subsystem low level driver code.
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*
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* @addtogroup WIN32_HAL
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* @{
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*/
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#include "hal.h"
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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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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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* 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("ChibiOS/RT simulator (Win32)\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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slice.QuadPart /= CH_CFG_ST_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 _sim_check_for_interrupts(void) {
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LARGE_INTEGER n;
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#if HAL_USE_SERIAL
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if (sd_lld_interrupt_pending()) {
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_dbg_check_lock();
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if (chSchIsPreemptionRequired())
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chSchDoReschedule();
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_dbg_check_unlock();
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return;
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}
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#endif
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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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CH_IRQ_PROLOGUE();
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chSysLockFromISR();
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chSysTimerHandlerI();
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chSysUnlockFromISR();
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CH_IRQ_EPILOGUE();
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_dbg_check_lock();
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if (chSchIsPreemptionRequired())
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chSchDoReschedule();
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_dbg_check_unlock();
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}
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}
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/** @} */
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