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Merge pull request #2372 from anangl/gpio_irq_fix 

Fixed irq handling in gpio_api.
pull/2347/merge
Sam Grove 2016-08-04 14:54:50 -05:00 committed by GitHub
parent 0edef2da82 41c9d1d67c
commit e9cebde193
1 changed files with 15 additions and 29 deletions
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40
hal/targets/hal/TARGET_NORDIC/TARGET_NRF5/gpio_api.c
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@ -22,13 +22,6 @@
#define GPIO_PIN_COUNT 31
typedef enum {
GPIO_NOT_USED = 0,
GPIO_USED = 1,
GPIO_USED_IRQ = 2,
GPIO_USED_IRQ_DISABLED = 3
} gpio_usage_t;
typedef struct {
bool used_as_gpio : 1;
PinDirection direction : 1;
@ -116,7 +109,7 @@ static void gpio_apply_config(uint8_t pin)
if ((m_gpio_irq_enabled & (1 << pin))
&& (m_gpio_cfg[pin].irq_rise || m_gpio_cfg[pin].irq_fall))
{
nrf_drv_gpiote_in_event_enable(pin, false);
nrf_drv_gpiote_in_event_enable(pin, true);
}
}
else {
@ -198,30 +191,25 @@ void gpio_irq_free(gpio_irq_t *obj)
void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable)
{
bool event_enabled_before = false;
if ((m_gpio_irq_enabled & (1 << obj->ch))
&& (m_gpio_cfg[obj->ch].irq_rise || m_gpio_cfg[obj->ch].irq_fall)) {
event_enabled_before = true;
}
gpio_cfg_t* cfg = &m_gpio_cfg[obj->ch];
bool irq_enabled_before =
(m_gpio_irq_enabled & (1 << obj->ch)) &&
(cfg->irq_rise || cfg->irq_fall);
if (event == IRQ_RISE) {
m_gpio_cfg[obj->ch].irq_rise = enable ? true : false;
cfg->irq_rise = enable ? true : false;
}
else if (event == IRQ_FALL) {
m_gpio_cfg[obj->ch].irq_fall = enable ? true : false;
cfg->irq_fall = enable ? true : false;
}
bool event_enabled_after = false;
if ((m_gpio_irq_enabled & (1 << obj->ch))
&& (m_gpio_cfg[obj->ch].irq_rise || m_gpio_cfg[obj->ch].irq_fall)) {
event_enabled_after = true;
}
bool irq_enabled_after = cfg->irq_rise || cfg->irq_fall;
if (event_enabled_before != event_enabled_after) {
if (event_enabled_after) {
nrf_drv_gpiote_in_event_enable(obj->ch,false);
if (irq_enabled_before != irq_enabled_after) {
if (irq_enabled_after) {
gpio_irq_enable(obj);
} else {
nrf_drv_gpiote_in_event_disable(obj->ch);
gpio_irq_disable(obj);
}
}
}
@ -239,7 +227,5 @@ void gpio_irq_enable(gpio_irq_t *obj)
void gpio_irq_disable(gpio_irq_t *obj)
{
m_gpio_irq_enabled &= ~(1 << obj->ch);
if (m_gpio_cfg[obj->ch].irq_rise || m_gpio_cfg[obj->ch].irq_fall) {
nrf_drv_gpiote_in_event_enable(obj->ch, false);
}
nrf_drv_gpiote_in_event_disable(obj->ch);
}