/* * irq.c * * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive * for more details. */ #include <linux/types.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/kernel_stat.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/seq_file.h> #include <asm/system.h> #include <asm/traps.h> asmlinkage void do_IRQ(int irq, struct pt_regs *regs) { struct pt_regs *oldregs = set_irq_regs(regs); irq_enter(); __do_IRQ(irq); irq_exit(); set_irq_regs(oldregs); } void ack_bad_irq(unsigned int irq) { printk(KERN_ERR "IRQ: unexpected irq=%d\n", irq); } static struct irq_chip m_irq_chip = { .name = "M68K-INTC", .enable = enable_vector, .disable = disable_vector, .ack = ack_vector, }; void __init init_IRQ(void) { int irq; init_vectors(); for (irq = 0; (irq < NR_IRQS); irq++) { irq_desc[irq].status = IRQ_DISABLED; irq_desc[irq].action = NULL; irq_desc[irq].depth = 1; irq_desc[irq].chip = &m_irq_chip; } } int show_interrupts(struct seq_file *p, void *v) { struct irqaction *ap; int irq = *((loff_t *) v); if (irq == 0) seq_puts(p, " CPU0\n"); if (irq < NR_IRQS) { ap = irq_desc[irq].action; if (ap) { seq_printf(p, "%3d: ", irq); seq_printf(p, "%10u ", kstat_irqs(irq)); seq_printf(p, "%14s ", irq_desc[irq].chip->name); seq_printf(p, "%s", ap->name); for (ap = ap->next; ap; ap = ap->next) seq_printf(p, ", %s", ap->name); seq_putc(p, '\n'); } } return 0; }