diff options
Diffstat (limited to 'os/hal/ports/STM32/LLD/RTCv1/hal_rtc_lld.h')
| -rw-r--r-- | os/hal/ports/STM32/LLD/RTCv1/hal_rtc_lld.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/os/hal/ports/STM32/LLD/RTCv1/hal_rtc_lld.h b/os/hal/ports/STM32/LLD/RTCv1/hal_rtc_lld.h new file mode 100644 index 000000000..04df16e11 --- /dev/null +++ b/os/hal/ports/STM32/LLD/RTCv1/hal_rtc_lld.h @@ -0,0 +1,198 @@ +/*
+ 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.
+*/
+/*
+ Concepts and parts of this file have been contributed by Uladzimir Pylinsky
+ aka barthess.
+ */
+
+/**
+ * @file STM32/RTCv1/rtc_lld.h
+ * @brief STM32F1xx RTC subsystem low level driver header.
+ *
+ * @addtogroup RTC
+ * @{
+ */
+
+#ifndef _RTC_LLD_H_
+#define _RTC_LLD_H_
+
+#if HAL_USE_RTC || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @name Implementation capabilities
+ */
+/**
+ * @brief This RTC implementation supports callbacks.
+ */
+#define RTC_SUPPORTS_CALLBACKS TRUE
+
+/**
+ * @brief One alarm comparator available.
+ */
+#define RTC_ALARMS 1
+
+/**
+ * @brief Presence of a local persistent storage.
+ */
+#define RTC_HAS_STORAGE FALSE
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/*
+ * RTC driver system settings.
+ */
+#define STM32_RTC_IRQ_PRIORITY 15
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if HAL_USE_RTC && !STM32_HAS_RTC
+#error "RTC not present in the selected device"
+#endif
+
+#if STM32_RTCCLK == 0
+#error "RTC clock not enabled"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief FileStream specific methods.
+ */
+#define _rtc_driver_methods \
+ _file_stream_methods
+
+/**
+ * @brief Type of a structure representing an RTC alarm time stamp.
+ */
+typedef struct RTCAlarm RTCAlarm;
+
+/**
+ * @brief Type of an RTC alarm.
+ * @details Meaningful on platforms with more than 1 alarm comparator.
+ */
+typedef uint32_t rtcalarm_t;
+
+/**
+ * @brief Type of an RTC event.
+ */
+typedef enum {
+ RTC_EVENT_SECOND = 0, /** Triggered every second. */
+ RTC_EVENT_ALARM = 1, /** Triggered on alarm. */
+ RTC_EVENT_OVERFLOW = 2 /** Triggered on counter overflow. */
+} rtcevent_t;
+
+/**
+ * @brief Type of a generic RTC callback.
+ */
+typedef void (*rtccb_t)(RTCDriver *rtcp, rtcevent_t event);
+
+/**
+ * @brief Structure representing an RTC alarm time stamp.
+ */
+struct RTCAlarm {
+ /**
+ * @brief Seconds since UNIX epoch.
+ */
+ uint32_t tv_sec;
+};
+
+#if RTC_HAS_STORAGE || defined(__DOXYGEN__)
+/**
+ * @extends FileStream
+ *
+ * @brief @p RTCDriver virtual methods table.
+ */
+struct RTCDriverVMT {
+ _rtc_driver_methods
+};
+#endif
+
+/**
+ * @brief Structure representing an RTC driver.
+ */
+struct RTCDriver{
+#if RTC_HAS_STORAGE || defined(__DOXYGEN__)
+ /**
+ * @brief Virtual Methods Table.
+ */
+ const struct RTCDriverVMT *vmt;
+#endif
+ /**
+ * @brief Pointer to the RTC registers block.
+ */
+ RTC_TypeDef *rtc;
+ /**
+ * @brief Callback pointer.
+ */
+ rtccb_t callback;
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+extern RTCDriver RTCD1;
+#if RTC_HAS_STORAGE
+extern struct RTCDriverVMT _rtc_lld_vmt;
+#endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void rtc_lld_set_prescaler(void);
+ void rtc_lld_init(void);
+ void rtc_lld_set_time(RTCDriver *rtcp, const RTCDateTime *timespec);
+ void rtc_lld_get_time(RTCDriver *rtcp, RTCDateTime *timespec);
+ void rtc_lld_set_alarm(RTCDriver *rtcp,
+ rtcalarm_t alarm_number,
+ const RTCAlarm *alarmspec);
+ void rtc_lld_get_alarm(RTCDriver *rtcp,
+ rtcalarm_t alarm_number,
+ RTCAlarm *alarmspec);
+ void rtc_lld_set_callback(RTCDriver *rtcp, rtccb_t callback);
+ void rtcSTM32GetSecMsec(RTCDriver *rtcp, uint32_t *tv_sec, uint32_t *tv_msec);
+ void rtcSTM32SetSec(RTCDriver *rtcp, uint32_t tv_sec);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_RTC */
+
+#endif /* _RTC_LLD_H_ */
+
+/** @} */
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