irq.c
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上传日期:2013-02-24
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- /*
- * 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.
- *
- * Copyright (C) 1992 Linus Torvalds
- * Copyright (C) 1994 - 2001 Ralf Baechle
- */
- #include <linux/delay.h>
- #include <linux/init.h>
- #include <linux/irq.h>
- #include <linux/interrupt.h>
- #include <linux/kernel.h>
- #include <linux/spinlock.h>
- #include <asm/io.h>
- #include <asm/jazz.h>
- extern asmlinkage void jazz_handle_int(void);
- /*
- * On systems with i8259-style interrupt controllers we assume for
- * driver compatibility reasons interrupts 0 - 15 to be the i8295
- * interrupts even if the hardware uses a different interrupt numbering.
- */
- void __init init_IRQ (void)
- {
- int i;
- set_except_vector(0, jazz_handle_int);
- init_generic_irq();
- init_i8259_irqs(); /* Integrated i8259 */
- #if 0
- init_jazz_irq();
- /* Actually we've got more interrupts to handle ... */
- for (i = PCIMT_IRQ_INT2; i <= PCIMT_IRQ_ETHERNET; i++) {
- irq_desc[i].status = IRQ_DISABLED;
- irq_desc[i].action = 0;
- irq_desc[i].depth = 1;
- irq_desc[i].handler = &pciasic_irq_type;
- }
- #endif
- }