diff options
| author | clyne <clyne@bitgloo.com> | 2021-03-21 16:34:21 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-03-21 16:34:21 -0400 |
| commit | 9b926b81ef1e8a4c7266494ae2a1369380e01b35 (patch) | |
| tree | 746095fa69eccccdc1c2830fdd0c06bac01848f5 /ChibiOS_20.3.2/os/various/evtimer.c | |
| parent | e080a26651f90c88176140d63a74c93c2f4041a2 (diff) | |
| parent | a4f1482a8b23d5f761f60d6f3821c84190d89e2f (diff) | |
Merge pull request #3 from tcsullivan/stm32h7
Stm32h7
Diffstat (limited to 'ChibiOS_20.3.2/os/various/evtimer.c')
| -rw-r--r-- | ChibiOS_20.3.2/os/various/evtimer.c | 85 |
1 files changed, 85 insertions, 0 deletions
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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