diff options
Diffstat (limited to 'os/hal/src/hal_st.c')
| -rw-r--r-- | os/hal/src/hal_st.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/os/hal/src/hal_st.c b/os/hal/src/hal_st.c new file mode 100644 index 000000000..cf654f882 --- /dev/null +++ b/os/hal/src/hal_st.c @@ -0,0 +1,130 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 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 st.c
+ * @brief ST Driver code.
+ *
+ * @addtogroup ST
+ * @{
+ */
+
+#include "hal.h"
+
+#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief ST Driver initialization.
+ * @note This function is implicitly invoked by @p halInit(), there is
+ * no need to explicitly initialize the driver.
+ *
+ * @init
+ */
+void stInit(void) {
+
+ st_lld_init();
+}
+
+
+/**
+ * @brief Starts the alarm.
+ * @note Makes sure that no spurious alarms are triggered after
+ * this call.
+ * @note This functionality is only available in free running mode, the
+ * behavior in periodic mode is undefined.
+ *
+ * @param[in] abstime the time to be set for the first alarm
+ *
+ * @api
+ */
+void stStartAlarm(systime_t abstime) {
+
+ osalDbgAssert(stIsAlarmActive() == false, "already active");
+
+ st_lld_start_alarm(abstime);
+}
+
+/**
+ * @brief Stops the alarm interrupt.
+ * @note This functionality is only available in free running mode, the
+ * behavior in periodic mode is undefined.
+ *
+ * @api
+ */
+void stStopAlarm(void) {
+
+ st_lld_stop_alarm();
+}
+
+/**
+ * @brief Sets the alarm time.
+ * @note This functionality is only available in free running mode, the
+ * behavior in periodic mode is undefined.
+ *
+ * @param[in] abstime the time to be set for the next alarm
+ *
+ * @api
+ */
+void stSetAlarm(systime_t abstime) {
+
+ osalDbgAssert(stIsAlarmActive() != false, "not active");
+
+ st_lld_set_alarm(abstime);
+}
+
+/**
+ * @brief Returns the current alarm time.
+ * @note This functionality is only available in free running mode, the
+ * behavior in periodic mode is undefined.
+ *
+ * @return The currently set alarm time.
+ *
+ * @api
+ */
+systime_t stGetAlarm(void) {
+
+ osalDbgAssert(stIsAlarmActive() != false, "not active");
+
+ return st_lld_get_alarm();
+}
+
+#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
+
+/** @} */
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