interrupts: Disable EXTI when disabling interrupt

When disabling interrupt, it should be done at both NVIC and EXTI level.
This avoid to have pending interrupt at EXTI level after call to
stm32_interrupt_disable(), which could fire the callback as soon as
new call to attachInterrupt(), even without new gpio change.

Signed-off-by: Alexandre Bourdiol <[email protected]>

Author: ABOSTM

libraries/SrcWrapper/src/stm32/interrupt.cpp

@@ -37,6 +37,7 @@
   */
 #include "interrupt.h"
 #include "lock_resource.h"
+#include "stm32yyxx_ll_exti.h"
 #if !defined(HAL_EXTI_MODULE_DISABLED)
 
 /* Private Types */
@@ -106,6 +107,13 @@ static gpio_irq_conf_str gpio_irq_conf[NB_EXTI] = {
 #endif
 };
 
+
+static const uint32_t ll_exti_lines[NB_EXTI] = {
+  LL_EXTI_LINE_0,  LL_EXTI_LINE_1,  LL_EXTI_LINE_2,  LL_EXTI_LINE_3,
+  LL_EXTI_LINE_4,  LL_EXTI_LINE_5,  LL_EXTI_LINE_6,  LL_EXTI_LINE_7,
+  LL_EXTI_LINE_8,  LL_EXTI_LINE_9,  LL_EXTI_LINE_10, LL_EXTI_LINE_11,
+  LL_EXTI_LINE_12, LL_EXTI_LINE_13, LL_EXTI_LINE_14, LL_EXTI_LINE_15
+};
 /* Private Functions */
 /**
   * @brief  This function returns the pin ID function of the HAL PIN definition
@@ -223,6 +231,8 @@ void stm32_interrupt_disable(GPIO_TypeDef *port, uint16_t pin)
       return;
     }
   }
+
+  LL_EXTI_DisableIT_0_31(ll_exti_lines[id]);
   HAL_NVIC_DisableIRQ(gpio_irq_conf[id].irqnb);
 }