source: mainline/kernel/arch/ia32/include/interrupt.h@ 3296df5

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 3296df5 was 3296df5, checked in by Martin Sucha <sucha14@…>, 13 years ago

Add NS16550 serial input support on ia32 and amd64 platforms.

This is based on ia64 code for the same.
Currently the port used is hardcoded to be COM1.

  • Property mode set to 100644
File size: 2.8 KB
Line 
1/*
2 * Copyright (c) 2001-2004 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup ia32interrupt
30 * @{
31 */
32/** @file
33 */
34
35#ifndef KERN_ia32_INTERRUPT_H_
36#define KERN_ia32_INTERRUPT_H_
37
38#include <typedefs.h>
39#include <arch/istate.h>
40#include <arch/pm.h>
41
42#define IVT_ITEMS IDT_ITEMS
43#define IVT_FIRST 0
44
45#define EXC_COUNT 32
46#define IRQ_COUNT 16
47
48#define IVT_EXCBASE 0
49#define IVT_IRQBASE (IVT_EXCBASE + EXC_COUNT)
50#define IVT_FREEBASE (IVT_IRQBASE + IRQ_COUNT)
51
52#define IRQ_CLK 0
53#define IRQ_KBD 1
54#define IRQ_PIC1 2
55/* NS16550 at COM1 */
56#define IRQ_NS16550 4
57#define IRQ_PIC_SPUR 7
58#define IRQ_MOUSE 12
59
60/* This one must have four least significant bits set to ones */
61#define VECTOR_APIC_SPUR (IVT_ITEMS - 1)
62
63#if (((VECTOR_APIC_SPUR + 1) % 16) || VECTOR_APIC_SPUR >= IVT_ITEMS)
64#error Wrong definition of VECTOR_APIC_SPUR
65#endif
66
67#define VECTOR_DEBUG 1
68#define VECTOR_CLK (IVT_IRQBASE + IRQ_CLK)
69#define VECTOR_PIC_SPUR (IVT_IRQBASE + IRQ_PIC_SPUR)
70#define VECTOR_SYSCALL IVT_FREEBASE
71#define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE + 1)
72#define VECTOR_DEBUG_IPI (IVT_FREEBASE + 2)
73
74extern void (* disable_irqs_function)(uint16_t);
75extern void (* enable_irqs_function)(uint16_t);
76extern void (* eoi_function)(void);
77extern const char *irqs_info;
78
79extern void interrupt_init(void);
80extern void trap_virtual_enable_irqs(uint16_t);
81extern void trap_virtual_disable_irqs(uint16_t);
82
83#endif
84
85/** @}
86 */
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