static unsigned int h8300_startup_irq(struct irq_data *data)
{
if (is_ext_irq(data->irq))
return h8300_enable_irq_pin(data->irq);
else
return 0;
}
static unsigned int h8300_startup_irq(unsigned int irq)
{
if (is_ext_irq(irq))
return h8300_enable_irq_pin(irq);
else
return 0;
}
int request_irq(unsigned int irq,
irqreturn_t (*handler)(int, void *, struct pt_regs *),
unsigned long flags, const char *devname, void *dev_id)
{
irq_handler_t *irq_handle;
if (irq < 0 || irq >= NR_IRQS) {
printk(KERN_ERR "Incorrect IRQ %d from %s\n", irq, devname);
return -EINVAL;
}
if (irq_list[irq] || (h8300_enable_irq_pin(irq) == -EBUSY))
return -EBUSY;
if (use_kmalloc)
irq_handle = kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
else {
/* use bootmem allocater */
irq_handle = (irq_handler_t *)alloc_bootmem(sizeof(irq_handler_t));
irq_handle = (irq_handler_t *)((unsigned long)irq_handle | 0x80000000);
}
if (irq_handle == NULL)
return -ENOMEM;
irq_handle->handler = handler;
irq_handle->flags = flags;
irq_handle->count = 0;
irq_handle->dev_id = dev_id;
irq_handle->devname = devname;
irq_list[irq] = irq_handle;
if (irq_handle->flags & IRQF_SAMPLE_RANDOM)
rand_initialize_irq(irq);
enable_irq(irq);
return 0;
}