import ChibiOS 2.0.8

ChibiOS_2.0.8/os/hal/platforms/Posix/hal_lld.c

@@ -0,0 +1,113 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 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/>.
+
+                                      ---
+
+    A special exception to the GPL can be applied should you wish to distribute
+    a combined work that includes ChibiOS/RT, without being obliged to provide
+    the source code for any proprietary components. See the file exception.txt
+    for full details of how and when the exception can be applied.
+*/
+
+/**
+ * @file    Posix/hal_lld.c
+ * @brief   Posix HAL subsystem low level driver code.
+ *
+ * @addtogroup POSIX_HAL
+ * @{
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+
+#include "ch.h"
+#include "hal.h"
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables.                                                   */
+/*===========================================================================*/
+
+static struct timeval nextcnt;
+static struct timeval tick = {0, 1000000 / CH_FREQUENCY};
+
+/**
+ * @brief PAL setup.
+ * @details Digital I/O ports static configuration as defined in @p board.h.
+ */
+#if CH_HAL_USE_PAL || defined(__DOXYGEN__)
+const PALConfig pal_default_config = {
+ {0, 0, 0},
+ {0, 0, 0}
+};
+#endif
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief Low level HAL driver initialization.
+ */
+void hal_lld_init(void) {
+
+#if defined(__APPLE__)
+  puts("ChibiOS/RT simulator (OS X)\n");
+#else
+  puts("ChibiOS/RT simulator (Linux)\n");
+#endif
+  gettimeofday(&nextcnt, NULL);
+  timeradd(&nextcnt, &tick, &nextcnt);
+}
+
+/**
+ * @brief Interrupt simulation.
+ */
+void ChkIntSources(void) {
+  struct timeval tv;
+
+#if CH_HAL_USE_SERIAL
+  if (sd_lld_interrupt_pending()) {
+    if (chSchIsRescRequiredExI())
+      chSchDoRescheduleI();
+    return;
+  }
+#endif
+
+  gettimeofday(&tv, NULL);
+  if (timercmp(&tv, &nextcnt, >=)) {
+    timeradd(&nextcnt, &tick, &nextcnt);
+    chSysTimerHandlerI();
+    if (chSchIsRescRequiredExI())
+      chSchDoRescheduleI();
+  }
+}
+
+/** @} */