diff options
Diffstat (limited to 'os/hal/ports/SPC5/LLD/STM_v1/hal_st_lld.h')
| -rw-r--r-- | os/hal/ports/SPC5/LLD/STM_v1/hal_st_lld.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/os/hal/ports/SPC5/LLD/STM_v1/hal_st_lld.h b/os/hal/ports/SPC5/LLD/STM_v1/hal_st_lld.h new file mode 100644 index 000000000..53cd7cc8b --- /dev/null +++ b/os/hal/ports/SPC5/LLD/STM_v1/hal_st_lld.h @@ -0,0 +1,200 @@ +/*
+ SPC5 HAL - Copyright (C) 2013 STMicroelectronics
+
+ 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 SPC5xx/STMv1/hal_st_lld.h
+ * @brief ST Driver subsystem low level driver header.
+ * @details This header is designed to be include-able without having to
+ * include other files from the HAL.
+ *
+ * @addtogroup ST
+ * @{
+ */
+
+#ifndef HAL_ST_LLD_H
+#define HAL_ST_LLD_H
+
+#include "mcuconf.h"
+#include "spc5_registry.h"
+#include "registers.h"
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @name STM CR register definitions.
+ * @{
+ */
+#define STM_CR_CNT_MASK (255U << 8U)
+#define STM_CR_CNT(n) ((n) << 8U)
+#define STM_CR_FRZ (1U << 1U)
+#define STM_CR_TEN (1U << 0U)
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/**
+ * @brief STM unit to be used by the ST driver.
+ */
+#if !defined(SPC5_STM_UNIT) || defined(__DOXYGEN__)
+#define SPC5_STM_UNIT STM_2
+#endif
+
+/**
+ * @brief SysTick timer IRQ priority.
+ */
+#if !defined(SPC5_STM_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define SPC5_STM_IRQ_PRIORITY 8
+#endif
+
+/**
+ * @brief Counter clock to be programmed in the STM unit.
+ */
+#if !defined(SPC5_STM_CNT_CLOCK) || defined(__DOXYGEN__)
+#define SPC5_STM_CNT_CLOCK 8000000U
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if 0
+#if !defined(STM_HANDLER)
+#error "STM_HANDLER not defined in registry"
+#endif
+
+#if !defined(SPC5_STM_CLK)
+#error "SPC5_STM_CLK not defined in registry"
+#endif
+
+/**
+ * @brief Prescaler value.
+ */
+#define SPC5_STM_CPL_VALUE (SPC5_STM_CLK / SPC5_STM_CNT_CLOCK)
+
+#if (SPC5_STM_CPL_VALUE * SPC5_STM_CNT_CLOCK) != SPC5_STM_CLK
+#error "SPC5_STM_CNT_CLOCK is invalid"
+#endif
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void st_lld_init(void);
+#ifdef __cplusplus
+}
+#endif
+
+/*===========================================================================*/
+/* Driver inline functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Returns the time counter value.
+ *
+ * @return The counter value.
+ *
+ * @notapi
+ */
+static inline systime_t st_lld_get_counter(void) {
+
+ return (systime_t)0;
+}
+
+/**
+ * @brief Starts the alarm.
+ * @note Makes sure that no spurious alarms are triggered after
+ * this call.
+ *
+ * @param[in] time the time to be set for the first alarm
+ *
+ * @notapi
+ */
+static inline void st_lld_start_alarm(systime_t time) {
+
+ (void)time;
+}
+
+/**
+ * @brief Stops the alarm interrupt.
+ *
+ * @notapi
+ */
+static inline void st_lld_stop_alarm(void) {
+
+}
+
+/**
+ * @brief Sets the alarm time.
+ *
+ * @param[in] time the time to be set for the next alarm
+ *
+ * @notapi
+ */
+static inline void st_lld_set_alarm(systime_t time) {
+
+ (void)time;
+}
+
+/**
+ * @brief Returns the current alarm time.
+ *
+ * @return The currently set alarm time.
+ *
+ * @notapi
+ */
+static inline systime_t st_lld_get_alarm(void) {
+
+ return (systime_t)0;
+}
+
+/**
+ * @brief Determines if the alarm is active.
+ *
+ * @return The alarm status.
+ * @retval false if the alarm is not active.
+ * @retval true is the alarm is active
+ *
+ * @notapi
+ */
+static inline bool st_lld_is_alarm_active(void) {
+
+ return false;
+}
+
+#endif /* HAL_ST_LLD_H */
+
+/** @} */
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