/**************************************************************************************
Copyright (c) 2002 The UbixOS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions, the following disclaimer and the list of authors.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions, the following disclaimer and the list of authors
in the documentation and/or other materials provided with the distribution. Neither the name of the UbixOS Project nor the names of its
contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
$Id$
**************************************************************************************/
#include <ubixos/gdt.h>
#include <ubixos/schedule.h>
#include <ubixos/idt.h>
#include <ubixos/exec.h>
#include <ubixos/idlethread.h>
#include <ubixos/vitals.h>
#include <drivers/video.h>
#include <drivers/8259.h>
#include <drivers/keyboard.h>
#include <drivers/fdc.h>
#include <version/version.h>
#include <vmm/memory.h>
#include <vmm/paging.h>
#include <ubixfs/ubixfs.h>
#include <ubixfs/file.h>
descriptorTable(GDT,5) {
{dummy:0},
standardDescriptor(0, 0xFFFFF, (dCode + dRead + dBig + dBiglim)),
standardDescriptor(0, 0xFFFFF, (dData + dWrite + dBig + dBiglim)),
standardDescriptor(0, 0xFFFFF, (dLdt)),
standardDescriptor(100000, (sizeof(struct tssStruct)-1), (dTss)),
};
struct {
unsigned short limit __attribute__ ((packed));
union descriptorTableunion *gdt __attribute__ ((packed));
} loadGdt = { (5 * sizeof(union descriptorTableunion) - 1), GDT };
typedef signed char Int8;
typedef signed short int Int16;
typedef signed long int Int32;
typedef unsigned char UInt8;
typedef unsigned short int UInt16;
typedef unsigned long int UInt32;
typedef struct {
UInt16 ModeAttributes;
UInt8 WindowAFlags;
UInt8 WindowBFlags;
UInt16 Granularity;
UInt16 WindowSize;
UInt16 WindowASeg;
UInt16 WindowBSeg;
void* BankSwitch;
UInt16 BytesPerLine;
UInt16 xRes, yRes;
UInt8 CharWidth;
UInt8 CharHeight;
UInt8 NumBitPlanes;
UInt8 BitsPerPixel;
UInt8 NumberOfBanks;
UInt8 MemoryModel;
UInt8 BankSize;
UInt8 NumOfImagePages;
UInt8 Reserved;
// Direct colour fields (required for Direct/6 and YUV/7 memory models
UInt8 RedMaskSize;
UInt8 RedFieldPosition;
UInt8 GreenMaskSize;
UInt8 GreenFieldPosition;
UInt8 BlueMaskSize;
UInt8 BlueFieldPosition;
UInt8 RsvdMaskSize;
UInt8 RsvdFieldPosition;
UInt8 DirectColourMode;
// VESA 2.0 specific fields
UInt32 PhysBasePtr;
void* OffScreenMemOffset;
UInt16 OffScreenMemSize;
UInt8 paddington[461];
} TMode_Rec;
typedef struct {
char VBESignature[4];
UInt8 minVersion;
UInt8 majVersion;
char * OEMStringPtr;
UInt32 Capabilities;
UInt16* VideoModePtr;
UInt16 TotalMemory;
// VESA 2.0 specific fields
UInt16 OEMSoftwareRev;
char * OEMVendorNamePtr;
char * OEMProductNamePtr;
char * OEMProductRevPtr;
UInt8 paddington[474];
} TVESA_Rec;
int main();
void _start(void) {
asm("cli");
asm(
"mov %cr0,%eax \n"
"and $0xFFFFFFFE,%eax \n"
"mov %eax,%cr0 \n"
"or $0x1,%eax \n"
"mov %eax,%cr0 \n"
"lgdtl (loadGdt) \n"
"movw $0x10,%ax \n"
"movw %ax,%ds \n"
"movw %ax,%es \n"
"movw %ax,%fs \n"
"movw %ax,%gs \n"
"movw %ax,%ss \n"
"movl $0xFFFF,%esp \n"
"mov $0x18,%ax \n" //Set up dummy LDT
"lldt %ax \n"
"mov $0x20,%ax \n" // Set up dummy TSS
"ltr %ax \n" // Loads dummy TSS
);
main(); //Start Of Kernel Functionality
while(1);
}
/************************************************************************
Function: int main();
Description: This Is The Main Kernel Function Does All The Initialization
Then Starts The INIT Program Which Will Take Over
Notes:
07/30/02 - I'm Considering Making The Kernel Fork Then Execute INIT
However It Seems To Be Pretty Stable As Is
************************************************************************/
int main() {
/*
long i = 0x0;
long xx = 0x0,yy = 0x0,zz = 0x0;
uLong *testBuffer = 0x40000000;
TMode_Rec *testVesa = 0x1000;
*/
initMmap(); //Initialize Memory Map
clearScreen(); //Clear The Screen
outputVersion(); //Display Version Info
initPagingSystem(); //Initialize Paging System
initVitals(); //Initialize Vitals Tracking
init8259(); //Initialize PIC
initIdt(); //Initialize IDT
initKeyboard(); //Initialize Keyboard
initScheduler(); //Initialize Scheduler
initFloppy(); //Initialize Floppy Controller
initUbixFS(); //Initialize File System
/*
kprintf("PhysBasePtr: [%i]\n",testVesa->PhysBasePtr);
kprintf("BytesPerLine: [%i]\n",testVesa->BytesPerLine);
kprintf("xRes: [%i]\n",testVesa->xRes);
kprintf("yRes: [%i]\n",testVesa->yRes);
kprintf("BitsPerPixel: [%i]\n",testVesa->BitsPerPixel);
kprintf("NumberOfBanks: [%i]\n",testVesa->NumberOfBanks);
while(1);
*/
/*
for (i=0;i<=(((testVesa->xRes*testVesa->yRes)*(testVesa->BitsPerPixel/1))+(0x1000-1));i+=0x1000) {
remapPage((testVesa->PhysBasePtr + i),(0x40000000 + i));
}
while (1) {
for (zz=0; zz<64; zz++)
for (yy=-128; yy<=128; yy++)
for (xx=-128; xx<=128; xx++)
testBuffer[(yy+128)*(800*2)+((xx+128)*2)]=xx*yy*zz;
for (zz=0; zz<64; zz++)
for (yy=128; yy>=-128;yy --)
for (xx=128; xx>=-128; xx--)
testBuffer[(yy+128)*(800*2)+((xx+128)*2)]=xx*yy*zz;
}
*/
/*
for (yy = 0;yy < 256;yy++) {
for (xx = 0;xx < 256;xx++) {
testBuffer[yy*800+xx] = (char)xx;
}
}
*/
/*
for (i=0;i<((testVesa->xRes*testVesa->yRes)*4);i++) {
for (zz=0;zz<=0x10;zz++) {
for (xx=0;xx<=0x10;xx++);
}
testBuffer[i] = i;
}
for (i=0;i<((testVesa->xRes*testVesa->yRes)*4);i++) {
for (zz=0;zz<=0x10;zz++) {
for (xx=0;xx<=0x10;xx++);
}
testBuffer[i] = (i/2);
}
*/
execThread(idleThread,0xAFFF,"Idle Thread");
execFile("init");
kprintf("Free Pages: [%i]\n",freePages);
enableIrq(0);
while (1);
}
