From 034fc01cd81b31164f03838b2b400efd530d2563 Mon Sep 17 00:00:00 2001
From: Frederic Pillon <frederic.pillon@st.com>
Date: Tue, 19 Nov 2019 17:39:30 +0100
Subject: [PATCH 1/2] [MP1] Add missing EXTI IRQHandler

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>
---
 cores/arduino/stm32/interrupt.cpp | 116 +++++++++++++++++++++++++++++-
 1 file changed, 114 insertions(+), 2 deletions(-)

diff --git a/cores/arduino/stm32/interrupt.cpp b/cores/arduino/stm32/interrupt.cpp
index 2b8368a419..f1d5dce669 100644
--- a/cores/arduino/stm32/interrupt.cpp
+++ b/cores/arduino/stm32/interrupt.cpp
@@ -236,7 +236,7 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
   }
 }
 
-#if defined (STM32G0xx)
+#if defined (STM32G0xx) || defined (STM32MP1xx)
 /**
   * @brief  EXTI line detection callback.
   * @param  GPIO_Pin Specifies the port pin connected to corresponding EXTI line.
@@ -359,7 +359,7 @@ void EXTI4_IRQHandler(void)
   HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_4);
 }
 
-
+#if !defined(STM32MP1xx)
 /**
   * @brief This function handles external line 5 to 9 interrupt request.
   * @param  None
@@ -385,7 +385,119 @@ void EXTI15_10_IRQHandler(void)
     HAL_GPIO_EXTI_IRQHandler(pin);
   }
 }
+#else /* STM32MP1xx */
+
+/**
+  * @brief This function handles external line 5 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI5_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_5);
+}
+
+/**
+  * @brief This function handles external line 6 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI6_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_6);
+}
+
+/**
+  * @brief This function handles external line 7 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI7_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_7);
+}
+
+/**
+  * @brief This function handles external line 8 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI8_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_8);
+}
+
+/**
+  * @brief This function handles external line 9 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI9_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_9);
+}
+
+/**
+  * @brief This function handles external line 10 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI10_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_10);
+}
+
+/**
+  * @brief This function handles external line 11 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI11_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_11);
+}
+
+/**
+  * @brief This function handles external line 12 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI12_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_12);
+}
+
+/**
+  * @brief This function handles external line 13 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI13_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_13);
+}
+
+/**
+  * @brief This function handles external line 14 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI14_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_14);
+}
+
+/**
+  * @brief This function handles external line 15 interrupt request.
+  * @param  None
+  * @retval None
+  */
+void EXTI15_IRQHandler(void)
+{
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_15);
+}
 
+#endif /* !STM32MP1xx */
 #ifdef __cplusplus
 }
 #endif

From a8f5311f08475616ba7e845ad3b52afca1a74c95 Mon Sep 17 00:00:00 2001
From: Frederic Pillon <frederic.pillon@st.com>
Date: Tue, 19 Nov 2019 17:46:27 +0100
Subject: [PATCH 2/2] [MP1] Fix EXTI GPIO init

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>
---
 cores/arduino/stm32/interrupt.cpp   | 12 +++++++++++-
 cores/arduino/stm32/lock_resource.h |  8 ++++++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/cores/arduino/stm32/interrupt.cpp b/cores/arduino/stm32/interrupt.cpp
index f1d5dce669..d80887d21d 100644
--- a/cores/arduino/stm32/interrupt.cpp
+++ b/cores/arduino/stm32/interrupt.cpp
@@ -36,7 +36,9 @@
   ******************************************************************************
   */
 #include "interrupt.h"
-
+#if defined(STM32MP1xx)
+#include "lock_resource.h"
+#endif
 #if !defined(HAL_EXTI_MODULE_DISABLED)
 
 /* Private Types */
@@ -177,8 +179,16 @@ void stm32_interrupt_enable(GPIO_TypeDef *port, uint16_t pin, callback_function_
 
   GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;
 
+#if defined(STM32MP1xx)
+  PERIPH_LOCK(port);
+#endif
+
   HAL_GPIO_Init(port, &GPIO_InitStruct);
 
+#if defined(STM32MP1xx)
+  PERIPH_UNLOCK(port);
+#endif
+
   gpio_irq_conf[id].callback = callback;
 
   // Enable and set EXTI Interrupt
diff --git a/cores/arduino/stm32/lock_resource.h b/cores/arduino/stm32/lock_resource.h
index acb000c3ab..4b6a07afaf 100644
--- a/cores/arduino/stm32/lock_resource.h
+++ b/cores/arduino/stm32/lock_resource.h
@@ -23,6 +23,9 @@
 /* Includes ------------------------------------------------------------------*/
 #include "stm32_def.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /* Exported types ------------------------------------------------------------*/
 typedef enum {
@@ -42,8 +45,9 @@ typedef enum {
 LockResource_Status_t Periph_Lock(void *Peripheral, uint32_t Timeout);
 void Periph_Unlock(void *Peripheral);
 
-
-
+#ifdef __cplusplus
+} // extern "C"
+#endif
 
 #endif /* _LOCK_RESOURCE_H */