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Gpio Interrupt fix for the CC2538 #7303

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merged 1 commit into from
Jul 4, 2017
+3 −3
Merged

Gpio Interrupt fix for the CC2538 #7303

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6 changes: 3 additions & 3 deletions cpu/cc2538/periph/gpio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -98,7 +98,7 @@ int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
isr_ctx[port_num(pin)][pin_num(pin)].arg = arg;

/* enable power-up interrupts for this GPIO port: */
SYS_CTRL->IWE |= port_num(pin);
SYS_CTRL->IWE |= (1 << port_num(pin));

/* configure the active flank(s) */
gpio(pin)->IS &= ~pin_mask(pin);
Expand All @@ -111,7 +111,7 @@ int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
case GPIO_RISING:
gpio(pin)->IBE &= ~pin_mask(pin);
gpio(pin)->IEV |= pin_mask(pin);
gpio(pin)->P_EDGE_CTRL &= (1 << pp_num(pin));
gpio(pin)->P_EDGE_CTRL &= ~(1 << pp_num(pin));
break;
case GPIO_BOTH:
gpio(pin)->IBE |= pin_mask(pin);
Expand Down Expand Up @@ -175,7 +175,7 @@ static inline void handle_isr(cc2538_gpio_t *gpio, int port_num)
{
uint32_t state = gpio->MIS;
gpio->IC = 0x000000ff;
gpio->IRQ_DETECT_ACK = 0x000000ff;
gpio->IRQ_DETECT_ACK = (0xff << (port_num * GPIO_BITS_PER_PORT));

for (int i = 0; i < GPIO_BITS_PER_PORT; i++) {
if (state & (1 << i)) {
Expand Down