120 lines
4.5 KiB
C
120 lines
4.5 KiB
C
//----------------------------------------------------------------------------//
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// OS on Kaleid //
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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 © 2018-2021 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 _KERNEL_H
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#include <kernel.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 ist;
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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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//----------------------------------------------------------------------------//
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void KeLoadIDT(void);
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void KeSetupIDT(void);
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void KeUnmaskIRQ(uchar IRQline);
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void KeMaskIRQ(uchar IRQline);
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void KeSendEOItoPIC(uchar isr);
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void KeSetIDTGate(uchar rank,
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ulong base,
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ushort selector,
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uchar flags,
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uchar ist);
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error_t KeRegisterISR(void (*isr)(ISRFrame_t *regs), uchar isrNo);
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void KeBrkDumpRegisters(ISRFrame_t *regs);
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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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_isr1(60,61,62,63,64,65,66,67,68,69); _isr1(70,71,72,73,74,75,76,77,78,79);
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_isr1(80,81,82,83,84,85,86,87,88,89); _isr1(90,91,92,93,94,95,96,97,98,99);
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_isr1(100,101,102,103,104,105,106,107,108,109);
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_isr1(110,111,112,113,114,115,116,117,118,119);
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_isr1(120,121,122,123,124,125,126,127,128,129);
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_isr1(130,131,132,133,134,135,136,137,138,139);
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_isr1(140,141,142,143,144,145,146,147,148,149);
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_isr1(150,151,152,153,154,155,156,157,158,159);
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_isr1(160,161,162,163,164,165,166,167,168,169);
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_isr1(170,171,172,173,174,175,176,177,178,179);
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_isr1(180,181,182,183,184,185,186,187,188,189);
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_isr1(190,191,192,193,194,195,196,197,198,199);
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_isr1(200,201,202,203,204,205,206,207,208,209);
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_isr1(210,211,212,213,214,215,216,217,218,219);
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_isr1(220,221,222,223,224,225,226,227,228,229);
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_isr1(230,231,232,233,234,235,236,237,238,239);
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_isr1(240,241,242,243,244,245,246,247,248,249);
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_isr0(250,251,252,253,254);
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void isr255();
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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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