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core: mask GPIO interrupts while attaching/detaching ISR handler (#3598)

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Fixes https://github.com/esp8266/Arduino/issues/2916.
This commit is contained in:
Ivan Grokhotkov 2017-09-12 22:28:26 -05:00 committed by GitHub
parent 99763f2d3d
commit e68e3402fa
1 changed files with 4 additions and 0 deletions
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4
cores/esp8266/core_esp8266_wiring_digital.c
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@ -152,6 +152,7 @@ void ICACHE_RAM_ATTR interrupt_handler(void *arg) {
extern void ICACHE_RAM_ATTR __attachInterruptArg(uint8_t pin, voidFuncPtr userFunc, void *arg, int mode) {
if(pin < 16) {
ETS_GPIO_INTR_DISABLE();
interrupt_handler_t *handler = &interrupt_handlers[pin];
handler->mode = mode;
handler->fn = userFunc;
@ -160,6 +161,7 @@ extern void ICACHE_RAM_ATTR __attachInterruptArg(uint8_t pin, voidFuncPtr userFu
GPC(pin) &= ~(0xF << GPCI);//INT mode disabled
GPIEC = (1 << pin); //Clear Interrupt for this pin
GPC(pin) |= ((mode & 0xF) << GPCI);//INT mode "mode"
ETS_GPIO_INTR_ENABLE();
}
}
@ -170,6 +172,7 @@ extern void ICACHE_RAM_ATTR __attachInterrupt(uint8_t pin, voidFuncPtr userFunc,
extern void ICACHE_RAM_ATTR __detachInterrupt(uint8_t pin) {
if(pin < 16) {
ETS_GPIO_INTR_DISABLE();
GPC(pin) &= ~(0xF << GPCI);//INT mode disabled
GPIEC = (1 << pin); //Clear Interrupt for this pin
interrupt_reg &= ~(1 << pin);
@ -177,6 +180,7 @@ extern void ICACHE_RAM_ATTR __detachInterrupt(uint8_t pin) {
handler->mode = 0;
handler->fn = 0;
handler->arg = 0;
ETS_GPIO_INTR_ENABLE();
}
}