diff options
Diffstat (limited to 'i386/pc/irq.h')
-rw-r--r-- | i386/pc/irq.h | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/i386/pc/irq.h b/i386/pc/irq.h deleted file mode 100644 index 1f9da9a..0000000 --- a/i386/pc/irq.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995 The University of Utah and - * the Computer Systems Laboratory at the University of Utah (CSL). - * All rights reserved. - * - * Permission to use, copy, modify and distribute this software is hereby - * granted provided that (1) source code retains these copyright, permission, - * and disclaimer notices, and (2) redistributions including binaries - * reproduce the notices in supporting documentation, and (3) all advertising - * materials mentioning features or use of this software display the following - * acknowledgement: ``This product includes software developed by the - * Computer Systems Laboratory at the University of Utah.'' - * - * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS - * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF - * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * CSL requests users of this software to return to csl-dist@cs.utah.edu any - * improvements that they make and grant CSL redistribution rights. - * - * Author: Bryan Ford, University of Utah CSL - */ -#ifndef _I386_PC_IRQ_H_ -#define _I386_PC_IRQ_H_ - -/* On normal PCs, there are always 16 IRQ lines. */ -#define IRQ_COUNT 16 - -/* Start of hardware interrupt vectors in the IDT. */ -#define IDT_IRQ_BASE 0x20 - -/* Variables storing the master and slave PIC interrupt vector base. */ -extern int irq_master_base, irq_slave_base; - -/* Routine called just after entering protected mode for the first time, - to set up the IRQ interrupt vectors in the protected-mode IDT. - It should initialize IDT entries irq_master_base through irq_master_base+7, - and irq_slave_base through irq_slave_base+7. */ -extern void idt_irq_init(void); - -/* Fill an IRQ gate in a CPU's IDT. - Always uses an interrupt gate; just set `access' to the privilege level. */ -#define fill_irq_gate(cpu, irq_num, entry, selector, access) \ - fill_idt_gate(cpu, (irq_num) < 8 \ - ? irq_master_base+(irq_num) \ - : irq_slave_base+(irq_num)-8, \ - entry, selector, ACC_INTR_GATE | (access)) - -#endif _I386_PC_IRQ_H_ |