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//This file contains the kernel's main procedure
#include <Core/common.wtf.h>
#include <Core/multiboot.wtf.h>
#include <Devices/Display/VGATextOutput.class.h>
#include <Devices/Keyboard/PS2Keyboard.class.h>
#include <Devices/Floppy/FloppyDrive.class.h>
#include <Devices/Timer.class.h>
#include <DeviceManager/Disp.ns.h>
#include <DeviceManager/Dev.ns.h>
#include <DeviceManager/Kbd.ns.h>
#include <DeviceManager/Time.ns.h>
#include <VTManager/ScrollableVT.class.h>
#include <MemoryManager/PhysMem.ns.h>
#include <MemoryManager/PageAlloc.ns.h>
#include <MemoryManager/GDT.ns.h>
#include <TaskManager/Task.ns.h>
#include <SyscallManager/IDT.ns.h>
#include <Library/String.class.h>
#include <Library/ByteArray.class.h>
#include <VFS/Part.ns.h>
#include <FileSystems/RamFS/RamFS.class.h>
#include <VFS/FileNode.class.h>
#include <VFS/VFS.ns.h>
#include <VFS/DirectoryNode.class.h>
#include <VFS/TextFile.class.h>
#include <Core/Log.ns.h>
#include <Ressources/Graphics/logo.text.cxd>
extern u32int end; //Placement address
extern "C" void kmain(multiboot_info_t* mbd, u32int magic);
#define INFO(vt) vt->setColor(KVT_FGCOLOR); *vt << " - "; vt->setColor(KVT_LIGHTCOLOR);
#define PROCESSING(vt, m) vt->setColor(KVT_BLECOLOR); *vt << " > "; vt->setColor(KVT_FGCOLOR); *vt << m; \
vt->setCursorCol(60); vt->setColor(KVT_LIGHTCOLOR); *vt << ": ";
#define OK(vt) vt->setColor(KVT_FGCOLOR); *vt << "[ "; vt->setColor(KVT_OKCOLOR); *vt << "OK"; vt->setColor(KVT_FGCOLOR); *vt << " ]\n";
void kmain(multiboot_info_t* mbd, u32int magic) {
DEBUG("Entering kmain.");
if (magic != MULTIBOOT_BOOTLOADER_MAGIC) {
Mem::placementAddress = (u32int)&end; //Setup basic stuff so that PANIC will work
VGATextOutput *vgaout = new VGATextOutput();
Disp::setDisplay(vgaout);
PANIC("Error with multiboot header.");
}
//Setup placement address so that we can use new without overwriting modules
Mem::placementAddress = (u32int)&end;
mbd->cmdline += 0xC0000000; mbd->mods_addr += 0xC0000000; //Take stuff into acount
module_t *mods = (module_t*)mbd->mods_addr;
for (u32int i = 0; i < mbd->mods_count; i++) {
mods[i].mod_start += 0xC0000000;
mods[i].mod_end += 0xC0000000;
if (mods[i].mod_end > Mem::placementAddress)
Mem::placementAddress = mods[i].mod_end + 0x1000;
}
//Create text output
VGATextOutput *vgaout = new VGATextOutput();
Disp::setDisplay(vgaout);
//Create a VT for handling the Melon bootup logo
SimpleVT *melonLogoVT = new SimpleVT(melonLogoLines, melonLogoCols, TXTLOGO_FGCOLOR, TXTLOGO_BGCOLOR);
for (int i = 0; i < melonLogoLines; i++) {
for (int j = 0; j < melonLogoCols; j++) {
melonLogoVT->putChar(i, j, melonLogo[i][j]);
}
}
melonLogoVT->map(1);
//Create a VT for logging what kernel does
SimpleVT *kvt = new ScrollableVT(15, 76, 100, KVT_FGCOLOR, KVT_BGCOLOR);
kvt->map(melonLogoLines + 2);
INFO(kvt); *kvt << "Lower ram : " << (s32int)mbd->mem_lower << "k, upper : " << (s32int)mbd->mem_upper << "k.\n";
INFO(kvt); *kvt << "Placement address : " << (u32int)Mem::placementAddress << "\n";
PROCESSING(kvt, "Loading IDT...");
IDT::init(); OK(kvt);
PROCESSING(kvt, "Initializing paging...");
u32int totalRam = ((mbd->mem_upper + mbd->mem_lower) * 1024);
PhysMem::initPaging(totalRam); OK(kvt);
INFO(kvt); *kvt << "Total ram : " << (s32int)(totalRam / 1024) << "k (" << (s32int)(totalRam / (1024 * 1024)) << "M).\n";
PROCESSING(kvt, "Initializing real GDT and cleaning page directory...");
GDT::init();
PhysMem::removeTemporaryPages(); OK(kvt);
PROCESSING(kvt, "Creating kernel heap...");
Mem::createHeap(); OK(kvt);
INFO(kvt); *kvt << "Free frames : " << (s32int)PhysMem::free() << "/" << (s32int)PhysMem::total() << "\n";
PROCESSING(kvt,"Initializing PIT...");
Dev::registerDevice(new Timer()); OK(kvt);
PROCESSING(kvt, "Initializing multitasking...");
Task::initialize(String((char*)mbd->cmdline), kvt); OK(kvt);
PROCESSING(kvt, "Mounting first module as ramfs on root directory...");
FileSystem* fs = new RamFS((u8int*)mods[0].mod_start, 1024 * 1024);
DirectoryNode* cwd;
cwd = fs->getRootNode();
VFS::setRootNode(cwd); OK(kvt);
PROCESSING(kvt, "Setting up logs...");
Log::init(KL_STATUS); OK(kvt);
INFO(kvt); *kvt << "Logs are now going to files in /System/Logs/\n";
Dev::registerDevice(vgaout);
Log::log(KL_STATUS, "kmain : Registered textual VGA output");
Dev::registerDevice(new PS2Keyboard()); //Initialize keyboard driver
Kbd::loadKeymap("fr");
Kbd::setFocus(kvt); //Set focus to virtual terminal
Log::log(KL_STATUS, "kmain : Keyboard set up");
FloppyController::detect();
Log::log(KL_STATUS, "kmain : Floppy drives detected");
asm volatile("sti");
while(1) {
kvt->setColor(KVT_LIGHTCOLOR);
*kvt << "[" << cwd->getName() << "]# ";
kvt->setColor(KVT_ENTRYCOLOR);
Vector<String> tokens = kvt->readLine().split(" ");
kvt->setColor(KVT_FGCOLOR);
if (tokens[0] == "help") {
*kvt << " - Command list for integrated kernel shell:\n";
*kvt << " - help shows this help screen\n";
*kvt << " - reboot reboots your computer\n";
*kvt << " - halt shuts down your computer\n";
*kvt << " - panic causes a kernel panic\n";
*kvt << " - devices shows all detected devices on your computer\n";
*kvt << " - loadkeys loads specified kekymap\n";
*kvt << " - free shows memory usage (physical frames and kernel heap)\n";
*kvt << " - uptime shows seconds since boot\n";
*kvt << " - part shows all detected block devices and partitions\n";
*kvt << " - Commands you should know how to use : ls, cd, cat, pwd, rm, mkdir, wf\n";
} else if (tokens[0] == "reboot") {
Sys::reboot();
} else if (tokens[0] == "halt") {
Sys::halt();
} else if (tokens[0] == "panic") {
PANIC("This is what happens when you say 'panic'.");
} else if (tokens[0] == "ls") {
DirectoryNode* d = cwd;
if (tokens.size() == 2) {
FSNode* n = VFS::find(tokens[1], cwd);
d = NULL;
if (n == NULL)
*kvt << "No such directory : " << tokens[1] << "\n";
else if (n->type() != NT_DIRECTORY)
*kvt << "Not a directory : " << tokens[1] << "\n";
else
d = (DirectoryNode*)n;
}
if (d != NULL) *kvt << "Contents of directory " << VFS::path(d) << " :\n";
for (u32int i = 0; d != NULL && i < d->getLength(); i++) {
FSNode* n = d->getChild(i);
if (n->type() == NT_FILE) {
FileNode* f = (FileNode*)n;
*kvt << " - FILE\t" << f->getName();
kvt->setCursorCol(30);
*kvt << (s32int)f->getLength() << " bytes.\n";
} else if (n->type() == NT_DIRECTORY) {
*kvt << " - DIR\t" << n->getName() << "/";
kvt->setCursorCol(30);
*kvt << (s32int)n->getLength() << " items.\n";
}
}
} else if (tokens[0] == "cd") {
if (tokens.size() == 1) {
*kvt << "Error : no argument given.\n";
} else {
FSNode* n = VFS::find(tokens[1], cwd);
if (n == NULL)
*kvt << "No such directory : " << tokens[1] << "\n";
else if (n->type() != NT_DIRECTORY)
*kvt << "Not a directory : " << tokens[1] << "\n";
else
cwd = (DirectoryNode*)n;
}
} else if (tokens[0] == "cat") {
if (tokens.size() == 1) *kvt << "Meow.\n";
for (u32int i = 1; i < tokens.size(); i++) {
File f(tokens[i], FM_READ, cwd);
if (f.valid()) {
u8int *buff = (u8int*)Mem::kalloc(f.length() + 1);
f.read(f.length(), buff);
buff[f.length()] = 0;
*kvt << String((const char*) buff);
Mem::kfree(buff);
} else {
*kvt << "Error reading from file " << tokens[i] << "\n";
}
}
} else if (tokens[0] == "pwd") {
*kvt << "Current location : " << VFS::path(cwd) << "\n";
} else if (tokens[0] == "rm") {
if (tokens.size() == 1) *kvt << "Error : no argument specified.\n";
for (u32int i = 1; i < tokens.size(); i++) {
if (!VFS::remove(tokens[i], cwd)) {
*kvt << "Error while removing file " << tokens[i] << "\n";
}
}
} else if (tokens[0] == "mkdir") {
if (tokens.size() > 1) {
for (u32int i = 1; i < tokens.size(); i++) {
if (VFS::createDirectory(tokens[i], cwd) == NULL)
*kvt << "Error while creating directory " << tokens[i] << "\n";
}
} else {
*kvt << "No argument specified.\n";
}
} else if (tokens[0] == "wf") {
if (tokens.size() == 1) {
*kvt << "No file to write !\n";
} else {
File f(tokens[1], FM_TRUNCATE, cwd);
if (f.valid()) {
String t = kvt->readLine();
while (t != ".") {
t += "\n";
ByteArray temp(t);
f.write(temp);
t = kvt->readLine();
}
} else {
*kvt << "Error openning file.\n";
}
}
} else if (tokens[0] == "devices") {
Vector<Device*> dev = Dev::findDevices();
*kvt << " - Detected devices :\n";
for (u32int i = 0; i < dev.size(); i++) {
*kvt << " - " << dev[i]->getClass();
kvt->setCursorCol(25);
*kvt << dev[i]->getName() << "\n";
}
} else if (tokens[0] == "loadkeys") {
if (tokens.size() == 1) {
*kvt << "Error : no argument specified.\n";
} else {
if (!Kbd::loadKeymap(tokens[1])) {
*kvt << "Error while loading keymap " << tokens[1] << ".\n";
}
}
} else if (tokens[0] == "free") {
u32int frames = PhysMem::total(), freef = PhysMem::free();
*kvt << " - Free frames : " << (s32int)freef << " (" << (s32int)(freef * 4 / 1024) << "Mo) of "
<< (s32int)frames << " (" << (s32int)(frames * 4 / 1024) << "Mo).\n";
u32int kh = Mem::kheapSize(), freek = Mem::kheapFree;
*kvt << " - Kernel heap free : " << (s32int)(freek / 1024 / 1024) << "Mo (" << (s32int)(freek / 1024) <<
"Ko) of " << (s32int)(kh / 1024 / 1024) << "Mo (" << (s32int)(kh / 1024) << "Ko).\n";
} else if (tokens[0] == "uptime") {
*kvt << " - Uptime : " << (s32int)(Time::uptime()) << "s.\n";
} else if (tokens[0] == "part") {
*kvt << " * ID\tClass Name\n";
for (u32int i = 0; i < Part::devices.size(); i++) {
*kvt << " - " << (s32int)i << "\t";
if (Part::devices[i] == 0) {
*kvt << "[none]\n";
} else {
*kvt << Part::devices[i]->getClass();
kvt->setCursorCol(33);
*kvt << Part::devices[i]->getName() << "\n";
for (u32int j = 0; j < Part::partitions.size(); j++) {
if (Part::partitions[j]->getDevice() == Part::devices[i]) {
*kvt << "\t - Partition " << (s32int)Part::partitions[j]->getPartNumber() <<
", start at " << (s32int)Part::partitions[j]->getStartBlock() <<
", size " << (s32int)Part::partitions[j]->getBlockCount() << "\n";
}
}
}
}
} else if (tokens.size() > 1 or tokens[0] != "") {
*kvt << " - Unrecognized command: " << tokens[0] << "\n";
}
}
PANIC("END OF KMAIN");
}
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