From 48026bb824fd2d9cfb00ecd040db6ef3a416bae9 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Fri, 22 Jan 2021 21:43:36 -0500
Subject: upload initial port

---
 ChibiOS_20.3.2/os/various/evtimer.c | 85 +++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 ChibiOS_20.3.2/os/various/evtimer.c

(limited to 'ChibiOS_20.3.2/os/various/evtimer.c')

diff --git a/ChibiOS_20.3.2/os/various/evtimer.c b/ChibiOS_20.3.2/os/various/evtimer.c
new file mode 100644
index 0000000..e9dcb93
--- /dev/null
+++ b/ChibiOS_20.3.2/os/various/evtimer.c
@@ -0,0 +1,85 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    evtimer.c
+ * @brief   Events Generator Timer code.
+ *
+ * @addtogroup event_timer
+ * @{
+ */
+
+#include "ch.h"
+#include "evtimer.h"
+
+/*===========================================================================*/
+/* Module local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local types.                                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local variables.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local functions.                                                   */
+/*===========================================================================*/
+
+static void tmrcb(void *p) {
+  event_timer_t *etp = p;
+
+  chSysLockFromISR();
+  chEvtBroadcastI(&etp->et_es);
+  chVTDoSetI(&etp->et_vt, etp->et_interval, tmrcb, etp);
+  chSysUnlockFromISR();
+}
+
+/*===========================================================================*/
+/* Module exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief Initializes an @p event_timer_t structure.
+ *
+ * @param[out] etp      the @p event_timer_t structure to be initialized
+ * @param[in] time      the interval in system ticks
+ */
+void evtObjectInit(event_timer_t *etp, systime_t time) {
+
+  chEvtObjectInit(&etp->et_es);
+  chVTObjectInit(&etp->et_vt);
+  etp->et_interval = time;
+}
+
+/**
+ * @brief   Starts the timer
+ * @details If the timer was already running then the function has no effect.
+ *
+ * @param[in] etp       pointer to an initialized @p event_timer_t structure.
+ */
+void evtStart(event_timer_t *etp) {
+
+  chVTSet(&etp->et_vt, etp->et_interval, tmrcb, etp);
+}
+
+/** @} */
-- 
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