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MCUXpresso: Fix the LPC GPIO IRQ driver #11064

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Merged
merged 1 commit into from
Jul 22, 2019
Merged

MCUXpresso: Fix the LPC GPIO IRQ driver #11064

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35 changes: 27 additions & 8 deletions targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC/gpio_irq_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,13 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
return -1;
}

obj->pin = pin & 0x1F;
obj->port = pin / 32;

if (obj->port >= INTERRUPT_PORTS) {
return -1;
}

irq_handler = handler;

for (i = 0; i < NUMBER_OF_GPIO_INTS; i++) {
Expand All @@ -82,13 +89,6 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
return -1;
}

obj->pin = pin & 0x1F;
obj->port = pin / 32;

if (obj->port >= INTERRUPT_PORTS) {
return -1;
}

/* Connect trigger sources to PINT */
INPUTMUX_Init(INPUTMUX);

Expand Down Expand Up @@ -139,7 +139,26 @@ void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable)
}
}
} else {
PINT_PinInterruptConfig(PINT, (pint_pin_int_t)obj->ch, kPINT_PinIntEnableNone, NULL);
if (event == IRQ_RISE) {
/* Checking if falling edge interrupt is already enabled on this pin */
if (PINT->IENF & (1U << obj->ch)) {
/* Leave falling edge interrupt enabled */
PINT_PinInterruptConfig(PINT, (pint_pin_int_t)obj->ch, kPINT_PinIntEnableFallEdge, pint_intr_callback);
} else {
/* Both rising and falling edge interrupt are disabled */
PINT_PinInterruptConfig(PINT, (pint_pin_int_t)obj->ch, kPINT_PinIntEnableNone, pint_intr_callback);
}
} else {
/* Checking if rising edge interrupt is already enabled on this pin */
if (PINT->IENR & (1U << obj->ch)) {
/* Leave rising edge interrupt enabled */
PINT_PinInterruptConfig(PINT, (pint_pin_int_t)obj->ch, kPINT_PinIntEnableRiseEdge, pint_intr_callback);
} else {
/* Both rising and falling edge interrupt are disabled */
PINT_PinInterruptConfig(PINT, (pint_pin_int_t)obj->ch, kPINT_PinIntEnableNone, pint_intr_callback);
}
}

}
}

Expand Down