STM32WL LORA radio: add a critical section in IRQ process

jeromecoutant · jeromecoutant · commit f42b3e41bf23 · 2021-10-12T11:01:22.000+02:00
diff --git a/connectivity/drivers/lora/TARGET_STM32WL/STM32WL_LoRaRadio.cpp b/connectivity/drivers/lora/TARGET_STM32WL/STM32WL_LoRaRadio.cpp
@@ -279,6 +279,7 @@ void HAL_SUBGHZ_MspInit(SUBGHZ_HandleTypeDef *subghzHandle)
 static void RadioIrqProcess()
 {
     radio_irq_masks_t irq_status;
+    core_util_critical_section_enter();
 
     irq_status = (radio_irq_masks_t)STM32WL_LoRaRadio::get_irq_status();
     /* clear IRQs lines after recovering their status */
@@ -300,6 +301,7 @@ static void RadioIrqProcess()
     if ((irq_status & IRQ_RX_TX_TIMEOUT) == IRQ_RX_TX_TIMEOUT) {
         STM32WL_LoRaRadio::HAL_SUBGHZ_RxTxTimeoutCallback();
     }
+    core_util_critical_section_exit();
 }
 
 

Original file line number	Diff line number	Diff line change
`@@ -279,6 +279,7 @@ void HAL_SUBGHZ_MspInit(SUBGHZ_HandleTypeDef *subghzHandle)`
`279`	`279`	`static void RadioIrqProcess()`
`280`	`280`	`{`
`281`	`281`	`radio_irq_masks_t irq_status;`
	`282`	`+ core_util_critical_section_enter();`
`282`	`283`
`283`	`284`	`irq_status = (radio_irq_masks_t)STM32WL_LoRaRadio::get_irq_status();`
`284`	`285`	`/* clear IRQs lines after recovering their status */`
`@@ -300,6 +301,7 @@ static void RadioIrqProcess()`
`300`	`301`	`if ((irq_status & IRQ_RX_TX_TIMEOUT) == IRQ_RX_TX_TIMEOUT) {`
`301`	`302`	`STM32WL_LoRaRadio::HAL_SUBGHZ_RxTxTimeoutCallback();`
`302`	`303`	`}`
	`304`	`+ core_util_critical_section_exit();`
`303`	`305`	`}`
`304`	`306`
`305`	`307`