aboutsummaryrefslogtreecommitdiffstats
path: root/os/hal
diff options
context:
space:
mode:
Diffstat (limited to 'os/hal')
-rw-r--r--os/hal/include/st.h66
-rw-r--r--os/hal/osal/chibios/osal.h6
-rw-r--r--os/hal/platforms/STM32/TIMv1/st_lld.c23
-rw-r--r--os/hal/platforms/STM32/TIMv1/st_lld.h92
4 files changed, 155 insertions, 32 deletions
diff --git a/os/hal/include/st.h b/os/hal/include/st.h
index 276ab2649..05d382d93 100644
--- a/os/hal/include/st.h
+++ b/os/hal/include/st.h
@@ -21,6 +21,8 @@
/**
* @file st.h
* @brief ST Driver macros and structures.
+ * @details This header is designed to be include-able without having to
+ * include other files from the HAL.
*
* @addtogroup ST
* @{
@@ -29,8 +31,6 @@
#ifndef _ST_H_
#define _ST_H_
-#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) || defined(__DOXYGEN__)
-
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
@@ -53,6 +53,66 @@
/* Driver macros. */
/*===========================================================================*/
+/**
+ * @name Macro Functions
+ * @{
+ */
+/**
+ * @brief Returns the time counter value.
+ * @note This functionality is only available in free running mode, the
+ * behavior in periodic mode is undefined.
+ *
+ * @return The counter value.
+ *
+ * @api
+ */
+#define stGetCounter() st_lld_get_counter()
+
+/**
+ * @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] time the time to be set for the first alarm
+ *
+ * @api
+ */
+#define stStartAlarm(time) st_lld_start_alarm(time)
+
+/**
+ * @brief Stops the alarm interrupt.
+ * @note This functionality is only available in free running mode, the
+ * behavior in periodic mode is undefined.
+ *
+ * @api
+ */
+#define stStopAlarm() 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] time the time to be set for the next alarm
+ *
+ * @api
+ */
+#define stSetAlarm(time) st_lld_set_alarm(time)
+
+/**
+ * @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
+ */
+#define stGetAlarm() st_lld_get_alarm()
+/** @} */
+
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
@@ -65,8 +125,6 @@ extern "C" {
}
#endif
-#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
-
#endif /* _ST_H_ */
/** @} */
diff --git a/os/hal/osal/chibios/osal.h b/os/hal/osal/chibios/osal.h
index d3d2e2b40..937b0f38e 100644
--- a/os/hal/osal/chibios/osal.h
+++ b/os/hal/osal/chibios/osal.h
@@ -107,6 +107,12 @@
/* Derived constants and error checks. */
/*===========================================================================*/
+#if !(OSAL_ST_MODE == OSAL_ST_MODE_NONE) && \
+ !(OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC) && \
+ !(OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING)
+#error "invalid OSAL_ST_MODE setting in osal.h"
+#endif
+
/*===========================================================================*/
/* Module data structures and types. */
/*===========================================================================*/
diff --git a/os/hal/platforms/STM32/TIMv1/st_lld.c b/os/hal/platforms/STM32/TIMv1/st_lld.c
index eb97866cd..45367878a 100644
--- a/os/hal/platforms/STM32/TIMv1/st_lld.c
+++ b/os/hal/platforms/STM32/TIMv1/st_lld.c
@@ -26,6 +26,29 @@
#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) || defined(__DOXYGEN__)
+/* The following checks and settings are unusually done here because the
+ file st.h needs to not have external dependencies. In this case there
+ would be a dependency on osal.h and mcuconf.h.*/
+#if (OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING) && !STM32_HAS_TIM2
+#error "TIM2 not present in the selected device"
+#endif
+
+#if (OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING) && !STM32_TIM2_IS_32BITS
+#error "TIM2 is not a 32 bits timer"
+#endif
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/**
+ * @brief SysTick timer IRQ priority.
+ */
+#if !defined(STM32_ST_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define STM32_ST_IRQ_PRIORITY 8
+#endif
+/** @} */
+
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
diff --git a/os/hal/platforms/STM32/TIMv1/st_lld.h b/os/hal/platforms/STM32/TIMv1/st_lld.h
index 09f95bd9e..882472cb2 100644
--- a/os/hal/platforms/STM32/TIMv1/st_lld.h
+++ b/os/hal/platforms/STM32/TIMv1/st_lld.h
@@ -17,6 +17,8 @@
/**
* @file STM32/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
* @{
@@ -25,8 +27,7 @@
#ifndef _ST_LLD_H_
#define _ST_LLD_H_
-#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) || defined(__DOXYGEN__)
-
+#include "stm32_registry.h"
#include "stm32_tim.h"
/*===========================================================================*/
@@ -37,35 +38,10 @@
/* Driver pre-compile time settings. */
/*===========================================================================*/
-/**
- * @name Configuration options
- * @{
- */
-/**
- * @brief SysTick timer IRQ priority.
- */
-#if !defined(STM32_ST_IRQ_PRIORITY) || defined(__DOXYGEN__)
-#define STM32_ST_IRQ_PRIORITY 8
-#endif
-/** @} */
-
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
-#if !(OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC) && \
- !(OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING)
-#error "invalid OSAL_ST_MODE setting in osal.h"
-#endif
-
-#if (OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING) && !STM32_HAS_TIM2
-#error "TIM2 not present in the selected device"
-#endif
-
-#if (OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING) && !STM32_TIM2_IS_32BITS
-#error "TIM2 is not a 32 bits timer"
-#endif
-
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
@@ -90,7 +66,67 @@ extern "C" {
/* Driver inline functions. */
/*===========================================================================*/
-#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
+/**
+ * @brief Returns the time counter value.
+ *
+ * @return The counter value.
+ *
+ * @notapi
+ */
+static inline systime_t st_lld_get_counter(void) {
+
+ return (systime_t)(STM32_TIM2->CNT);
+}
+
+/**
+ * @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) {
+
+ STM32_TIM2->CCR[0] = time;
+ STM32_TIM2->SR = 0;
+ STM32_TIM2->DIER = STM32_TIM_DIER_CC1IE;
+}
+
+/**
+ * @brief Stops the alarm interrupt.
+ *
+ * @notapi
+ */
+static inline void st_lld_stop_alarm(void) {
+
+ STM32_TIM2->DIER = 0;
+}
+
+/**
+ * @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) {
+
+ STM32_TIM2->CCR[0] = (uint32_t)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)STM32_TIM2->CCR[0];
+}
#endif /* _ST_LLD_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 19:22:55 +0000