diff options
Diffstat (limited to 'libhw_cr/rp2040_gpioirq.c')
| -rw-r--r-- | libhw_cr/rp2040_gpioirq.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libhw_cr/rp2040_gpioirq.c b/libhw_cr/rp2040_gpioirq.c index 1ae74f9..8d406c6 100644 --- a/libhw_cr/rp2040_gpioirq.c +++ b/libhw_cr/rp2040_gpioirq.c @@ -17,8 +17,6 @@ struct gpioirq_handler_entry { }; struct gpioirq_handler_entry gpioirq_handlers[NUM_BANK0_GPIOS][4] = {0}; -int gpioirq_core = -1; - static void gpioirq_handler(void) { uint core = get_core_num(); io_bank0_irq_ctrl_hw_t *irq_ctrl_base; @@ -44,6 +42,8 @@ static void gpioirq_handler(void) { } void gpioirq_set_and_enable_exclusive_handler(uint gpio, enum gpio_irq_level event, gpioirq_handler_t fn, void *arg) { + static uint gpioirq_core = ~0U; + assert(gpio < NUM_BANK0_GPIOS); assert(event == GPIO_IRQ_LEVEL_LOW || event == GPIO_IRQ_LEVEL_HIGH || @@ -55,7 +55,7 @@ void gpioirq_set_and_enable_exclusive_handler(uint gpio, enum gpio_irq_level eve assert(gpioirq_handlers[gpio][event_idx].fn == NULL); uint core = get_core_num(); - assert(gpioirq_core == -1 || gpioirq_core == (int)core); + assert(gpioirq_core == ~0U || gpioirq_core == core); io_bank0_irq_ctrl_hw_t *irq_ctrl_base; switch (core) { @@ -67,7 +67,7 @@ void gpioirq_set_and_enable_exclusive_handler(uint gpio, enum gpio_irq_level eve gpioirq_handlers[gpio][event_idx].fn = fn; gpioirq_handlers[gpio][event_idx].arg = arg; hw_set_bits(&irq_ctrl_base->inte[gpio/8], 1u<<((4*(gpio%8))+event_idx)); - if (gpioirq_core == -1) { + if (gpioirq_core == ~0U) { irq_set_exclusive_handler(IO_IRQ_BANK0, gpioirq_handler); irq_set_enabled(IO_IRQ_BANK0, true); gpioirq_core = core; |