altos: Route correct GPIO line to interrupt controller

[fw/altos] / src / stm / ao_exti_stm.c

diff --git a/src/stm/ao_exti_stm.c b/src/stm/ao_exti_stm.c
index 013d453be2f456dce4540280d3bb4a81e3157745..2108e8b5d4181fcaefe79169e0fa2a01e8646f35 100644 (file)
--- a/src/stm/ao_exti_stm.c
+++ b/src/stm/ao_exti_stm.c
@@ -51,8 +51,12 @@ ao_exti_setup (struct stm_gpio *gpio, uint8_t pin, uint8_t mode, void (*callback
        uint32_t        mask = 1 << pin;
        uint32_t        pupdr;
        uint8_t         irq;
-       
+
        ao_exti_callback[pin] = callback;
+
+       /* configure gpio to interrupt routing */
+       stm_exticr_set(gpio, pin);
+
        /* configure pin as input, setting selected pull-up/down mode */
        stm_moder_set(gpio, pin, STM_MODER_INPUT);
        switch (mode & (AO_EXTI_MODE_PULL_UP|AO_EXTI_MODE_PULL_DOWN)) {