ciabase
void __init cia_init_IRQ(struct ciabase *base)
unsigned char cia_set_irq(struct ciabase *base, unsigned char mask)
unsigned char cia_able_irq(struct ciabase *base, unsigned char mask)
struct ciabase *base = dev_id;
extern struct ciabase ciaa_base, ciab_base;
extern void cia_init_IRQ(struct ciabase *base);
extern unsigned char cia_set_irq(struct ciabase *base, unsigned char mask);
extern unsigned char cia_able_irq(struct ciabase *base, unsigned char mask);