102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
//----------------------------------------------------------------------------//
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// GNU GPL OS/K //
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// //
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// Desc: Interrupt related functions //
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// //
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// //
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// Copyright © 2018-2019 The OS/K Team //
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// //
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// This file is part of OS/K. //
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// //
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// OS/K is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// any later version. //
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// //
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// OS/K is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY//without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
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#ifndef _KALKERN_BASE_H
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#include <kernel/base.h>
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#endif
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#ifndef _KALKERN_IDT_H
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#define _KALKERN_IDT_H
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//----------------------------------------------------------------------------//
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struct IdtDescriptor_t
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{
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ushort limit;
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ulong base;
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} __attribute__((packed));
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struct IdtEntry_t
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{
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ushort baseLow;
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ushort selector;
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uchar reservedIst;
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uchar flags;
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ushort baseMid;
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uint baseHigh;
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uint reserved;
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} __attribute__((packed));
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struct IdtPtr_t
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{
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ushort limit;
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void *base;
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} __attribute__((packed));
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struct ISRList_t
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{
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uchar n; //number of entries in the list
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struct entry {
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void (*isr)(ISRFrame_t *regs);
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uchar isrNo;
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uchar flags;
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} entry[255];
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};
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typedef struct
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{
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} __attribute__((__packed__)) cpu_state_t;
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extern char *IsrExceptions[32];
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//----------------------------------------------------------------------------//
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void IdtInit(void);
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void IdtSetup(void);
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void IoSendEOItoPIC(uchar isr);
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void IdtEarlyExceptionHandler(ISRFrame_t *regs);
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void IdtSetGate(uchar rank, ulong base, ushort selector, uchar flags);
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error_t IdtRegisterIsr(void (*isr)(ISRFrame_t *regs), uchar isrNo);
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//----------------------------------------------------------------------------//
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#define _isr0(a,b,c,d,e) \
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void isr##a(); void isr##b(); void isr##c(); void isr##d(); void isr##e()
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#define _isr1(a,b,c,d,e,f,g,h,i,j) _isr0(a,b,c,d,e); _isr0(f,g,h,i,j)
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_isr1(0,1,2,3,4,5,6,7,8,9); _isr1(10,11,12,13,14,15,16,17,18,19);
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_isr1(20,21,22,23,24,25,26,27,28,29); _isr1(30,31,32,33,34,35,36,37,38,39);
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_isr1(40,41,42,43,44,45,46,47,48,49); _isr1(50,51,52,53,54,55,56,57,58,59);
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#undef _isr1
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#undef _isr0
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//----------------------------------------------------------------------------//
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#endif
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