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Ensure isr cannot occur after NVIC_DisableIRQ 

Add data and instruction synchronization barriers to prevent
interrupts from occurring after NVIC_DisableIRQ is called. This
is a backport of changes made in CMSIS_5.
pull/3282/head
Russ Butler 2016-11-17 12:26:45 -06:00
parent aeabcc9472
commit cf5cd7dfd4
7 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cmsis/core_cm0.h
View File

@ -589,6 +589,8 @@ __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
__STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->ICER[0] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}

2
cmsis/core_cm0plus.h
View File

@ -703,6 +703,8 @@ __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
__STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->ICER[0] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}

2
cmsis/core_cm3.h
View File

@ -1431,6 +1431,8 @@ __STATIC_INLINE void __NVIC_EnableIRQ(IRQn_Type IRQn)
__STATIC_INLINE void __NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->ICER[(((uint32_t)(int32_t)IRQn) >> 5UL)] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}

2
cmsis/core_cm4.h
View File

@ -1597,6 +1597,8 @@ __STATIC_INLINE void __NVIC_EnableIRQ(IRQn_Type IRQn)
__STATIC_INLINE void __NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->ICER[(((uint32_t)(int32_t)IRQn) >> 5UL)] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}

2
cmsis/core_cm7.h
View File

@ -1754,6 +1754,8 @@ __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
__STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->ICER[(((uint32_t)(int32_t)IRQn) >> 5UL)] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}

2
cmsis/core_sc000.h
View File

@ -705,6 +705,8 @@ __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
__STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->ICER[0] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}

2
cmsis/core_sc300.h
View File

@ -1376,6 +1376,8 @@ __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
__STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->ICER[(((uint32_t)(int32_t)IRQn) >> 5UL)] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}