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Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: platform/mbed_critical.c
- Revision:
- 189:f392fc9709a3
- Parent:
- 188:bcfe06ba3d64
--- a/platform/mbed_critical.c Thu Nov 08 11:46:34 2018 +0000
+++ b/platform/mbed_critical.c Wed Feb 20 22:31:08 2019 +0000
@@ -100,6 +100,11 @@
}
}
+void core_util_atomic_flag_clear(volatile core_util_atomic_flag *flagPtr)
+{
+ flagPtr->_flag = false;
+}
+
#if MBED_EXCLUSIVE_ACCESS
/* Supress __ldrex and __strex deprecated warnings - "#3731-D: intrinsic is deprecated" */
@@ -107,6 +112,15 @@
#pragma diag_suppress 3731
#endif
+bool core_util_atomic_flag_test_and_set(volatile core_util_atomic_flag *flagPtr)
+{
+ uint8_t currentValue;
+ do {
+ currentValue = __LDREXB(&flagPtr->_flag);
+ } while (__STREXB(true, &flagPtr->_flag));
+ return currentValue;
+}
+
bool core_util_atomic_cas_u8(volatile uint8_t *ptr, uint8_t *expectedCurrentValue, uint8_t desiredValue)
{
do {
@@ -204,6 +218,15 @@
#else
+bool core_util_atomic_flag_test_and_set(volatile core_util_atomic_flag *flagPtr)
+{
+ core_util_critical_section_enter();
+ uint8_t currentValue = flagPtr->_flag;
+ flagPtr->_flag = true;
+ core_util_critical_section_exit();
+ return currentValue;
+}
+
bool core_util_atomic_cas_u8(volatile uint8_t *ptr, uint8_t *expectedCurrentValue, uint8_t desiredValue)
{
bool success;
