static void gpio_irq(struct nu_gpio_irq_var *var)
{
uint32_t port_index = var->irq_n - GPA_IRQn;
GPIO_T *gpio_base = NU_PORT_BASE(port_index);
uint32_t intsrc = gpio_base->INTSRC;
uint32_t inten = gpio_base->INTEN;
while (intsrc) {
int pin_index = nu_ctz(intsrc);
gpio_irq_t *obj = var->obj_arr[pin_index];
if (inten & (GPIO_INT_RISING << pin_index)) {
if (GPIO_PIN_ADDR(port_index, pin_index)) {
if (obj->irq_handler) {
((gpio_irq_handler) obj->irq_handler)(obj->irq_id, IRQ_RISE);
}
}
}
if (inten & (GPIO_INT_FALLING << pin_index)) {
if (! GPIO_PIN_ADDR(port_index, pin_index)) {
if (obj->irq_handler) {
((gpio_irq_handler) obj->irq_handler)(obj->irq_id, IRQ_FALL);
}
}
}
intsrc &= ~(1 << pin_index);
}
// Clear all interrupt flags
gpio_base->INTSRC = gpio_base->INTSRC;
}
static void pdma_vec(void)
{
uint32_t intsts = PDMA_GET_INT_STATUS();
// Abort
if (intsts & PDMA_INTSTS_ABTIF_Msk) {
uint32_t abtsts = PDMA_GET_ABORT_STS();
// Clear all Abort flags
PDMA_CLR_ABORT_FLAG(abtsts);
while (abtsts) {
int chn_id = nu_ctz(abtsts);
if (dma_chn_mask & (1 << chn_id)) {
struct nu_dma_chn_s *dma_chn = dma_chn_arr + chn_id;
if (dma_chn->handler && (dma_chn->event & DMA_EVENT_ABORT)) {
dma_chn->handler(dma_chn->id, DMA_EVENT_ABORT);
}
}
abtsts &= ~(1 << chn_id);
}
}
// Transfer done
if (intsts & PDMA_INTSTS_TDIF_Msk) {
uint32_t tdsts = PDMA_GET_TD_STS();
// Clear all transfer done flags
PDMA_CLR_TD_FLAG(tdsts);
while (tdsts) {
int chn_id = nu_ctz(tdsts);
if (dma_chn_mask & (1 << chn_id)) {
struct nu_dma_chn_s *dma_chn = dma_chn_arr + chn_id;
if (dma_chn->handler && (dma_chn->event & DMA_EVENT_TRANSFER_DONE)) {
dma_chn->handler(dma_chn->id, DMA_EVENT_TRANSFER_DONE);
}
}
tdsts &= ~(1 << chn_id);
}
}
// Table empty
if (intsts & PDMA_INTSTS_TEIF_Msk) {
uint32_t scatsts = PDMA_GET_EMPTY_STS();
// Clear all table empty flags
PDMA_CLR_EMPTY_FLAG(scatsts);
}
// Timeout
uint32_t reqto = intsts & PDMA_INTSTS_REQTOFn_Msk;
if (reqto) {
// Clear all Timeout flags
PDMA->INTSTS = reqto;
while (reqto) {
int chn_id = nu_ctz(reqto) - PDMA_INTSTS_REQTOFn_Pos;
if (dma_chn_mask & (1 << chn_id)) {
struct nu_dma_chn_s *dma_chn = dma_chn_arr + chn_id;
if (dma_chn->handler && (dma_chn->event & DMA_EVENT_TIMEOUT)) {
dma_chn->handler(dma_chn->id, DMA_EVENT_TIMEOUT);
}
}
reqto &= ~(1 << (chn_id + PDMA_INTSTS_REQTOFn_Pos));
}
}
}
