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109 lines
3.5 KiB
C
109 lines
3.5 KiB
C
//----------------------------------------------------------------------------//
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// GNU GPL OS/K //
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// //
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// Desc: Kernel entry point //
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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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#include <extras/buf.h>
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#include <kernel/iomisc.h>
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#include <kernel/cursor.h>
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#include <kernel/mboot.h>
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#include <kernel/heap.h>
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#include <kernel/mm.h>
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#include <kernel/time.h>
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// info.c
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extern void BtDoSanityChecks(uint mbMagic);
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extern void BtInitBootInfo(multiboot_info_t *mbi, void *codeSeg);
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// io/vga.c
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extern error_t IoInitVGABuffer(void);
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//io/keyb.c
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extern void IoSetupKeyb(void);
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extern void IoEnableKeyb(void);
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// cpu/idt.c
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extern void IdtSetup(void);
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// ps/proc.c test function
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extern void pstest(void);
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// interrupts tests
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extern void divideByZero(void);
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void test(void)
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{
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asm volatile ("hlt");
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}
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//
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// Entry point of the Kaleid kernel
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//
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noreturn void BtStartKern(multiboot_info_t *mbInfo, uint mbMagic, void *codeSeg)
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{
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KeDisableIRQs();
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// Initialize the BootInfo_t structure
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BtInitBootInfo(mbInfo, codeSeg);
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// Screen I/O available from this point on
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IoInitVGABuffer();
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IoEnableCursor();
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IoUpdateCursor(0, 0);
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KernLog("%c%c%c OS/K\n\n", 219, 219, 219); //grrr
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// Sanity checks
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BtDoSanityChecks(mbMagic);
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// Memory & scheduler
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MmInitMemoryMap();
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// Several inits
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MmInitHeap();
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PsInitSched();
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// Drivers ISR inits
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IoSetupRtc();
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IoSetupKeyb();
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// Interrupts launching
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IdtSetup();
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KeEnableIRQs();
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// Drivers enabling
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IoEnableRtc();
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IoEnableKeyb();
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IoPrintRtcTime();
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KernLog("There was %d ticks\n", IoGetRtcTicks());
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for (uint i = 1; i < 10 ; i++) {
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while (IoGetRtcTicks() < i * 10000) {
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}
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IoPrintRtcTime();
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}
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KernLog("Goodbye after %d ticks\n", IoGetRtcTicks());
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// End this machine's suffering
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BFlushBuf(BStdOut);
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KeCrashSystem();
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}
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