diff options
Diffstat (limited to 'bsps/arm/atsam/contrib/libraries/libchip/source/pio_it.c')
| -rw-r--r-- | bsps/arm/atsam/contrib/libraries/libchip/source/pio_it.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/bsps/arm/atsam/contrib/libraries/libchip/source/pio_it.c b/bsps/arm/atsam/contrib/libraries/libchip/source/pio_it.c index 2c619db136..f3745281dd 100644 --- a/bsps/arm/atsam/contrib/libraries/libchip/source/pio_it.c +++ b/bsps/arm/atsam/contrib/libraries/libchip/source/pio_it.c @@ -90,24 +90,28 @@ static uint32_t _dwNumSources = 0; static void PIO_Interrupt(Pio *pPio, uint32_t id) { uint32_t status; + uint32_t status_save; size_t i; - status = pPio->PIO_ISR; - status &= pPio->PIO_IMR; + do { + status = pPio->PIO_ISR; + status &= pPio->PIO_IMR; + status_save = status; - for (i = 0; status != 0 && i < MAX_INTERRUPT_SOURCES; ++i) { - const InterruptSource *is = &_aIntSources[i]; - const Pin *pin = is->pPin;; + for (i = 0; status != 0 && i < MAX_INTERRUPT_SOURCES; ++i) { + const InterruptSource *is = &_aIntSources[i]; + const Pin *pin = is->pPin;; - if (pin->id == id) { - uint32_t mask = pin->mask; + if (pin->id == id) { + uint32_t mask = pin->mask; - if ((status & mask) != 0) { - status &= ~mask; - (*is->handler)(pin, is->arg); + if ((status & mask) != 0) { + status &= ~mask; + (*is->handler)(pin, is->arg); + } } } - } + } while (status_save != 0); } /*---------------------------------------------------------------------------- |