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stm32/extint: Add EXTI support for H7 MCUs.

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iabdalkader 2018-02-24 01:11:50 +02:00 committed by Damien George
parent 711f817c2a
commit 6d3f42f713
1 changed files with 40 additions and 3 deletions
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43
ports/stm32/extint.c
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@ -97,6 +97,11 @@
#define EXTI_Mode_Event offsetof(EXTI_TypeDef, EMR1)
#define EXTI_RTSR EXTI->RTSR1
#define EXTI_FTSR EXTI->FTSR1
#elif defined(STM32H7)
#define EXTI_Mode_Interrupt offsetof(EXTI_Core_TypeDef, IMR1)
#define EXTI_Mode_Event offsetof(EXTI_Core_TypeDef, EMR1)
#define EXTI_RTSR EXTI->RTSR1
#define EXTI_FTSR EXTI->FTSR1
#else
#define EXTI_Mode_Interrupt offsetof(EXTI_TypeDef, IMR)
#define EXTI_Mode_Event offsetof(EXTI_TypeDef, EMR)
@ -277,13 +282,21 @@ void extint_enable(uint line) {
if (line >= EXTI_NUM_VECTORS) {
return;
}
#if defined(MCU_SERIES_F7)
#if defined(MCU_SERIES_F7) || defined(STM32H7)
// The Cortex-M7 doesn't have bitband support.
mp_uint_t irq_state = disable_irq();
if (pyb_extint_mode[line] == EXTI_Mode_Interrupt) {
#if defined(STM32H7)
EXTI_D1->IMR1 |= (1 << line);
#else
EXTI->IMR |= (1 << line);
#endif
} else {
#if defined(STM32H7)
EXTI_D1->EMR1 |= (1 << line);
#else
EXTI->EMR |= (1 << line);
#endif
}
enable_irq(irq_state);
#else
@ -299,11 +312,16 @@ void extint_disable(uint line) {
return;
}
#if defined(MCU_SERIES_F7)
#if defined(MCU_SERIES_F7) || defined(STM32H7)
// The Cortex-M7 doesn't have bitband support.
mp_uint_t irq_state = disable_irq();
#if defined(STM32H7)
EXTI_D1->IMR1 &= ~(1 << line);
EXTI_D1->EMR1 &= ~(1 << line);
#else
EXTI->IMR &= ~(1 << line);
EXTI->EMR &= ~(1 << line);
#endif
enable_irq(irq_state);
#else
// Since manipulating IMR/EMR is a read-modify-write, and we want this to
@ -319,7 +337,7 @@ void extint_swint(uint line) {
return;
}
// we need 0 to 1 transition to trigger the interrupt
#if defined(MCU_SERIES_L4)
#if defined(MCU_SERIES_L4) || defined(STM32H7)
EXTI->SWIER1 &= ~(1 << line);
EXTI->SWIER1 |= (1 << line);
#else
@ -381,6 +399,25 @@ STATIC mp_obj_t extint_regs(void) {
printf("EXTI_SWIER2 %08lx\n", EXTI->SWIER2);
printf("EXTI_PR1 %08lx\n", EXTI->PR1);
printf("EXTI_PR2 %08lx\n", EXTI->PR2);
#elif defined(STM32H7)
printf("EXTI_IMR1 %08lx\n", EXTI_D1->IMR1);
printf("EXTI_IMR2 %08lx\n", EXTI_D1->IMR2);
printf("EXTI_IMR3 %08lx\n", EXTI_D1->IMR3);
printf("EXTI_EMR1 %08lx\n", EXTI_D1->EMR1);
printf("EXTI_EMR2 %08lx\n", EXTI_D1->EMR2);
printf("EXTI_EMR3 %08lx\n", EXTI_D1->EMR3);
printf("EXTI_RTSR1 %08lx\n", EXTI->RTSR1);
printf("EXTI_RTSR2 %08lx\n", EXTI->RTSR2);
printf("EXTI_RTSR3 %08lx\n", EXTI->RTSR3);
printf("EXTI_FTSR1 %08lx\n", EXTI->FTSR1);
printf("EXTI_FTSR2 %08lx\n", EXTI->FTSR2);
printf("EXTI_FTSR3 %08lx\n", EXTI->FTSR3);
printf("EXTI_SWIER1 %08lx\n", EXTI->SWIER1);
printf("EXTI_SWIER2 %08lx\n", EXTI->SWIER2);
printf("EXTI_SWIER3 %08lx\n", EXTI->SWIER3);
printf("EXTI_PR1 %08lx\n", EXTI_D1->PR1);
printf("EXTI_PR2 %08lx\n", EXTI_D1->PR2);
printf("EXTI_PR3 %08lx\n", EXTI_D1->PR3);
#else
printf("EXTI_IMR %08lx\n", EXTI->IMR);
printf("EXTI_EMR %08lx\n", EXTI->EMR);