static void __init zeus_init_irq(void)
{
int level;
int isa_irq;
pxa27x_init_irq();
/* Peripheral IRQs. It would be nice to move those inside driver
configuration, but it is not supported at the moment. */
set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO), IRQ_TYPE_EDGE_FALLING);
set_irq_type(gpio_to_irq(ZEUS_CAN_GPIO), IRQ_TYPE_EDGE_FALLING);
/* Setup ISA IRQs */
for (level = 0; level < ARRAY_SIZE(zeus_isa_irqs); level++) {
isa_irq = zeus_bit_to_irq(level);
set_irq_chip(isa_irq, &zeus_irq_chip);
set_irq_handler(isa_irq, handle_edge_irq);
set_irq_flags(isa_irq, IRQF_VALID | IRQF_PROBE);
}
set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_chained_handler(gpio_to_irq(ZEUS_ISA_GPIO), zeus_irq_handler);
}
static void zeus_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending;
pending = zeus_irq_pending();
do {
/* we're in a chained irq handler,
* so ack the interrupt by hand */
desc->chip->ack(gpio_to_irq(ZEUS_ISA_GPIO));
if (likely(pending)) {
irq = zeus_bit_to_irq(__ffs(pending));
generic_handle_irq(irq);
}
pending = zeus_irq_pending();
} while (pending);
}
static void zeus_irq_handler(struct irq_desc *desc)
{
unsigned int irq;
unsigned long pending;
pending = zeus_irq_pending();
do {
/* we're in a chained irq handler,
* so ack the interrupt by hand */
desc->irq_data.chip->irq_ack(&desc->irq_data);
if (likely(pending)) {
irq = zeus_bit_to_irq(__ffs(pending));
generic_handle_irq(irq);
}
pending = zeus_irq_pending();
} while (pending);
}
