aboutsummaryrefslogtreecommitdiffstats
path: root/os/hal/ports/NRF51/NRF51822/st_lld.h
diff options
context:
space:
mode:
Diffstat (limited to 'os/hal/ports/NRF51/NRF51822/st_lld.h')
-rw-r--r--os/hal/ports/NRF51/NRF51822/st_lld.h118
1 files changed, 96 insertions, 22 deletions
diff --git a/os/hal/ports/NRF51/NRF51822/st_lld.h b/os/hal/ports/NRF51/NRF51822/st_lld.h
index 54dabda..ab25dbb 100644
--- a/os/hal/ports/NRF51/NRF51822/st_lld.h
+++ b/os/hal/ports/NRF51/NRF51822/st_lld.h
@@ -33,54 +33,95 @@
/* Driver constants. */
/*===========================================================================*/
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
/**
- * @brief System ticks implementer as a timer.
+ * @brief Use RTC0 to generates system ticks
*/
-#define NRF51_SYSTEM_TICKS_AS_TIMER 1
+#if !defined(NRF51_ST_USE_RTC0) || defined(__DOXYGEN__)
+#if !defined(SOFTDEVICE_PRESENT)
+#define NRF51_ST_USE_RTC0 TRUE
+#else
+#define NRF51_ST_USE_RTC0 FALSE
+#endif
+#endif
/**
- * @brief System ticks implementer as an rtc.
+ * @brief Use RTC1 to generates system ticks
*/
-#define NRF51_SYSTEM_TICKS_AS_RTC 2
+#if !defined(NRF51_ST_USE_RTC1) || defined(__DOXYGEN__)
+#if !defined(SOFTDEVICE_PRESENT)
+#define NRF51_ST_USE_RTC1 FALSE
+#else
+#define NRF51_ST_USE_RTC1 TRUE
+#endif
+#endif
-/*===========================================================================*/
-/* Driver pre-compile time settings. */
-/*===========================================================================*/
+/**
+ * @brief Use TIMER0 to generates system ticks
+ */
+#if !defined(NRF51_ST_USE_TIMER0) || defined(__DOXYGEN__)
+#define NRF51_ST_USE_TIMER0 FALSE
+#endif
/**
- * @brief Select the method to generates system ticks
- * @details Possibles values are:
- * NRF51_SYSTEM_TICKS_AS_TIMER for TIMER0
- * NRF51_SYSTEM_TICKS_AS_RTC for RTC0
+ * @brief ST interrupt priority level setting.
*/
-#if !defined(NRF51_SYSTEM_TICKS) || defined(__DOXYGEN__)
-#define NRF51_SYSTEM_TICKS NRF51_SYSTEM_TICKS_AS_RTC
+#if !defined(NRF51_ST_PRIORITY) || defined(__DOXYGEN__)
+#if !defined(SOFTDEVICE_PRESENT)
+#define NRF51_ST_PRIORITY 8
+#else
+#define NRF51_ST_PRIORITY 1
+#endif
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
-#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE)
-#if (NRF51_GPT_USE_TIMER0 == TRUE) && \
- (NRF51_SYSTEM_TICKS == NRF51_SYSTEM_TICKS_AS_TIMER)
+#if OSAL_ST_MODE != OSAL_ST_MODE_NONE
+#if (NRF51_ST_USE_TIMER0 == TRUE) && (NRF51_GPT_USE_TIMER0 == TRUE)
#error "TIMER0 already used by GPT driver"
#endif
+
+#if (NRF51_ST_USE_RTC0 == FALSE) && \
+ (NRF51_ST_USE_RTC1 == FALSE) && \
+ (NRF51_ST_USE_TIMER0 == FALSE)
+#error "One clock source is needed, enable one (RTC0, RTC1, or TIMER0)"
+#endif
+
+#if ((NRF51_ST_USE_RTC0 == TRUE ? 1 : 0) + \
+ (NRF51_ST_USE_RTC1 == TRUE ? 1 : 0) + \
+ (NRF51_ST_USE_TIMER0 == TRUE ? 1 : 0)) > 1
+#error "Only one clock source can be used (RTC0, RTC1, or TIMER0)"
+#endif
+
+#if defined(SOFTDEVICE_PRESENT)
+#if NRF51_ST_USE_RTC0 == TRUE
+#error "RTC0 cannot be used for system ticks when SOFTDEVICE present"
#endif
-#if ((NRF51_SYSTEM_TICKS != NRF51_SYSTEM_TICKS_AS_RTC) && \
- (NRF51_SYSTEM_TICKS != NRF51_SYSTEM_TICKS_AS_TIMER))
-#error "NRF51_SYSTEM_TICKS illegal value"
+#if NRF51_ST_USE_TIMER0 == TRUE
+#error "TIMER0 cannot be used for system ticks when SOFTDEVICE present"
#endif
+#if NRF51_ST_PRIORITY != 1
+#error "ST priority must be 1 when SOFTDEVICE present"
+#endif
+
+#endif /* defined(SOFTDEVICE_PRESENT) */
+#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
+
#if OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING
#if defined(CH_CFG_ST_TIMEDELTA) && (CH_CFG_ST_TIMEDELTA < 5)
#error "CH_CFG_ST_TIMEDELTA is too low"
#endif
-#if NRF51_SYSTEM_TICKS == NRF51_SYSTEM_TICKS_AS_TIMER
+#if NRF51_ST_USE_TIMER0 == TRUE
#error "Freeruning (tick-less) mode not supported with TIMER, use RTC"
#endif
-#endif
+#endif /* OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING */
/*===========================================================================*/
/* Driver data structures and types. */
@@ -114,7 +155,12 @@ extern "C" {
* @notapi
*/
static inline systime_t st_lld_get_counter(void) {
- return (systime_t)NRF_RTC0->COUNTER;
+#if NRF51_ST_USE_RTC0 == TRUE
+ return (systime_t)NRF_RTC0->COUNTER;
+#endif
+#if NRF51_ST_USE_RTC1 == TRUE
+ return (systime_t)NRF_RTC1->COUNTER;
+#endif
}
/**
@@ -127,9 +173,16 @@ static inline systime_t st_lld_get_counter(void) {
* @notapi
*/
static inline void st_lld_start_alarm(systime_t abstime) {
+#if NRF51_ST_USE_RTC0 == TRUE
NRF_RTC0->CC[0] = abstime;
NRF_RTC0->EVENTS_COMPARE[0] = 0;
NRF_RTC0->EVTENSET = RTC_EVTENSET_COMPARE0_Msk;
+#endif
+#if NRF51_ST_USE_RTC1 == TRUE
+ NRF_RTC1->CC[0] = abstime;
+ NRF_RTC1->EVENTS_COMPARE[0] = 0;
+ NRF_RTC1->EVTENSET = RTC_EVTENSET_COMPARE0_Msk;
+#endif
}
/**
@@ -138,8 +191,14 @@ static inline void st_lld_start_alarm(systime_t abstime) {
* @notapi
*/
static inline void st_lld_stop_alarm(void) {
+#if NRF51_ST_USE_RTC0 == TRUE
NRF_RTC0->EVTENCLR = RTC_EVTENCLR_COMPARE0_Msk;
NRF_RTC0->EVENTS_COMPARE[0] = 0;
+#endif
+#if NRF51_ST_USE_RTC1 == TRUE
+ NRF_RTC1->EVTENCLR = RTC_EVTENCLR_COMPARE0_Msk;
+ NRF_RTC1->EVENTS_COMPARE[0] = 0;
+#endif
}
/**
@@ -150,7 +209,12 @@ static inline void st_lld_stop_alarm(void) {
* @notapi
*/
static inline void st_lld_set_alarm(systime_t abstime) {
+#if NRF51_ST_USE_RTC0 == TRUE
NRF_RTC0->CC[0] = abstime;
+#endif
+#if NRF51_ST_USE_RTC1 == TRUE
+ NRF_RTC1->CC[0] = abstime;
+#endif
}
/**
@@ -161,7 +225,12 @@ static inline void st_lld_set_alarm(systime_t abstime) {
* @notapi
*/
static inline systime_t st_lld_get_alarm(void) {
+#if NRF51_ST_USE_RTC0 == TRUE
return (systime_t)NRF_RTC0->CC[0];
+#endif
+#if NRF51_ST_USE_RTC1 == TRUE
+ return (systime_t)NRF_RTC1->CC[0];
+#endif
}
/**
@@ -174,7 +243,12 @@ static inline systime_t st_lld_get_alarm(void) {
* @notapi
*/
static inline bool st_lld_is_alarm_active(void) {
+#if NRF51_ST_USE_RTC0 == TRUE
return NRF_RTC0->EVTEN & RTC_EVTEN_COMPARE0_Msk;
+#endif
+#if NRF51_ST_USE_RTC1 == TRUE
+ return NRF_RTC1->EVTEN & RTC_EVTEN_COMPARE0_Msk;
+#endif
}
#endif /* _ST_LLD_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 06:19:47 +0000