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| Rev | Author | Line No. | Line |
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| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #ifndef __INTERRUPT_H__ |
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| 30 | #define __INTERRUPT_H__ |
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| 31 | |||
| 32 | #include <arch/types.h> |
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| 33 | #include <arch/pm.h> |
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| 34 | |||
| 35 | #define IVT_ITEMS IDT_ITEMS |
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| 36 | |||
| 37 | #define IVT_EXCBASE 0 |
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| 38 | #define EXCLAST 31 |
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| 39 | |||
| 40 | #define IVT_IRQBASE (IVT_EXCBASE+EXCLAST+1) |
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| 41 | #define IRQLAST 15 |
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| 42 | |||
| 43 | #define IVT_FREEBASE (IVT_IRQBASE+IRQLAST+1) |
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| 44 | |||
| 45 | #define IRQ_CLK 0 |
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| 46 | #define IRQ_KBD 1 |
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| 47 | #define IRQ_PIC1 2 |
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| 48 | #define IRQ_PIC_SPUR 7 |
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| 49 | |||
| 50 | /* this one must have four least significant bits set to ones */ |
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| 51 | #define VECTOR_APIC_SPUR (IVT_ITEMS-1) |
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| 52 | |||
| 53 | #if (((VECTOR_APIC_SPUR + 1)%16) || VECTOR_APIC_SPUR >= IVT_ITEMS) |
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| 54 | #error Wrong definition of VECTOR_APIC_SPUR |
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| 55 | #endif |
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| 56 | |||
| 57 | #define VECTOR_PIC_SPUR (IVT_IRQBASE+IRQ_PIC_SPUR) |
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| 58 | #define VECTOR_CLK (IVT_IRQBASE+IRQ_CLK) |
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| 59 | #define VECTOR_KBD (IVT_IRQBASE+IRQ_KBD) |
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| 60 | |||
| 61 | #define VECTOR_SYSCALL (IVT_FREEBASE+0) |
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| 62 | |||
| 63 | typedef void (* iroutine)(__u8 n, __u32 stack[]); |
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| 64 | |||
| 65 | extern iroutine ivt[IVT_ITEMS]; |
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| 66 | |||
| 67 | extern void (* disable_irqs_function)(__u16 irqmask); |
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| 68 | extern void (* enable_irqs_function)(__u16 irqmask); |
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| 69 | extern void (* eoi_function)(void); |
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| 70 | |||
| 71 | extern iroutine trap_register(__u8 n, iroutine f); |
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| 72 | |||
| 73 | extern void trap_dispatcher(__u8 n, __u32 stack[]); |
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| 74 | |||
| 75 | extern void null_interrupt(__u8 n, __u32 stack[]); |
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| 76 | extern void gp_fault(__u8 n, __u32 stack[]); |
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| 77 | extern void page_fault(__u8 n, __u32 stack[]); |
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| 78 | extern void syscall(__u8 n, __u32 stack[]); |
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| 79 | |||
| 80 | extern void trap_virtual_enable_irqs(__u16 irqmask); |
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| 81 | extern void trap_virtual_disable_irqs(__u16 irqmask); |
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| 82 | extern void trap_virtual_eoi(void); |
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| 83 | |||
| 84 | #endif |