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[STM32F4] Use previously introduced pin_function_gpiomode 

This way the pull-up / pull-down modes would not be overwritten
as first reported in issue #2638
pull/2920/head
Laurent MEUNIER 2016-09-09 15:55:31 +02:00
parent e516bddc66
commit 3f81f5df50
1 changed files with 4 additions and 4 deletions
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8
targets/TARGET_STM/TARGET_STM32F4/gpio_irq_api.c
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@ -163,6 +163,7 @@ static void gpio_irq6(void)
}
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
extern void pin_function_gpiomode(PinName pin, uint32_t gpiomode);
int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id)
{
@ -267,15 +268,14 @@ void gpio_irq_free(gpio_irq_t *obj)
gpio_channel->channel_gpio[gpio_idx] = 0;
gpio_channel->channel_pin[gpio_idx] = 0;
// Disable EXTI line
pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
// Disable EXTI line, but don't change pull-up config
pin_function_gpiomode(obj->pin, STM_MODE_INPUT);
obj->event = EDGE_NONE;
}
void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable)
{
uint32_t mode = STM_MODE_IT_EVT_RESET;
uint32_t pull = GPIO_NOPULL;
if (enable) {
if (event == IRQ_RISE) {
@ -317,7 +317,7 @@ void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable)
}
}
pin_function(obj->pin, STM_PIN_DATA(mode, pull, 0));
pin_function_gpiomode(obj->pin, mode);
}
void gpio_irq_enable(gpio_irq_t *obj)