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//This file contains the kernel's main procedure
#include <common.h>
#include <Core/multiboot.wtf.h>
#include <Devices/Display/VGATextOutput.class.h>
#include <Devices/Display/VESADisplay.class.h>
#include <Devices/Keyboard/PS2Keyboard.class.h>
#include <Devices/Floppy/FloppyDrive.class.h>
#include <Devices/ATA/ATAController.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 <VTManager/FileVT.class.h>
#include <MemoryManager/PhysMem.ns.h>
#include <MemoryManager/PageAlloc.ns.h>
#include <MemoryManager/GDT.ns.h>
#include <TaskManager/Task.ns.h>
#include <UserManager/Usr.ns.h>
#include <SyscallManager/IDT.ns.h>
#include <String.class.h>
#include <ByteArray.class.h>
#include <Rand.ns.h>
#include <VFS/Part.ns.h>
#include <FileSystems/RamFS/RamFS.class.h>
#include <FileSystems/FAT/FATFS.class.h>
#include <VFS/FileNode.class.h>
#include <VFS/VFS.ns.h>
#include <VFS/DirectoryNode.class.h>
#include <Core/Log.ns.h>
#include <Shell/KernelShell.class.h>
#include <Ressources/Graphics/logo.text.cxd>
extern u32int end; //Placement address
extern "C" void kmain(multiboot_info_t* mbd, u32int magic);
SimpleVT* kvt;
u32int logoAnimation(void* p) {
SimpleVT& vt = *((SimpleVT*)p);
vt.setColor(8);
u8int *wat = new u8int[melonLogoLines * melonLogoCols];
for (int x = 0; x < melonLogoCols; x++) {
for (int y = 0; y < melonLogoLines; y++) {
wat[x * melonLogoLines + y] = melonLogo[y][x];
vt.putChar(y, x, " ");
}
}
vt.setColor(TXTLOGO_FGCOLOR);
u32int s = 32;
for (int i = 0; i < 255; i++) {
for (int x = 0; x < (i < melonLogoCols ? i : melonLogoCols); x++) {
for (int y = 0; y < melonLogoLines; y++) {
if (wat[x * melonLogoLines + y] != melonLogo[y][x]) {
wat[x * melonLogoLines + y]++;
if (wat[x * melonLogoLines + y] > melonLogo[y][x] && (y + x) % 2 == 1)
wat[x * melonLogoLines + y] += 2;
if (wat[x * melonLogoLines + y] >= 127)
wat[x * melonLogoLines + y] = 32;
vt.setColor(7);
vt.putChar(y, x, wat[x * melonLogoLines + y]);
} else {
vt.setColor(TXTLOGO_FGCOLOR);
vt.putChar(y, x, wat[x * melonLogoLines + y]);
}
}
}
vt.setColor(8);
if (i < melonLogoCols) {
for (int y = 0; y < melonLogoLines; y++) {
s += 102;
while (s > 127) s -= (127 - 33);
wat[(i + (y%3)) * melonLogoLines + y] = s;
vt.putChar(y, (i + (y%3)), wat[(i + (y%3)) * melonLogoLines + y]);
}
}
Task::currThread()->sleep(20);
}
delete wat;
return 0;
}
void selectVideoMode(SimpleVT& v) {
Disp::getModes();
v << "\nPlease select a graphic mode in the list below:\n";
for (u32int i = 0; i < Disp::modes.size(); i++) {
Disp::mode_t& m = Disp::modes[i];
v << (s32int)i << ":\t" << "Text " << m.textRows << "x" << m.textCols << "\t";
if (m.graphWidth != 0 and m.graphHeight != 0) {
v << "Graphics " << m.graphWidth << "x" << m.graphHeight << "x" << m.graphDepth << "\t";
} else {
v << "No graphics";
}
v.setCursorCol(50);
v << m.device->getName() << "\n";
}
while (1) {
v << "\nYour selection: ";
String answer = v.readLine();
u32int n = answer.toInt();
v.unmap();
if (n >= 0 and n < Disp::modes.size() and Disp::setMode(Disp::modes[n])) {
return;
} else {
Disp::setMode(Disp::modes[1]);
v.map();
v << "Error while switching video mode, please select another one.";
}
}
}
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::setText(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;
}
//************************************** BASIC KERNEL SETUP
//Create text output
VGATextOutput *vgaout = new VGATextOutput();
Disp::setText(vgaout);
//Create a VT for logging what kernel does
kvt = new ScrollableVT(25, 80, 20, KVT_FGCOLOR, KVT_BGCOLOR);
kvt->map(0, 0);
*kvt << "Melon is loading...\n";
IDT::init(); //Setup interrupts
u32int totalRam = ((mbd->mem_upper + mbd->mem_lower) * 1024);
PhysMem::initPaging(totalRam); //Setup paging
GDT::init(); //Initialize real GDT, not fake one from loader.wtf.asm
PhysMem::removeTemporaryPages(); //Remove useless page mapping
Mem::createHeap(); //Create kernel heap
Dev::registerDevice(vgaout);
Dev::registerDevice(new Timer()); //Initialize timer
String kcmdline((char*)mbd->cmdline);
Task::initialize(kcmdline, kvt); //Initialize multitasking
asm volatile("sti");
//*************************************** PARSE COMMAND LINE
Vector<String> opts = kcmdline.split(" ");
String keymap = "builtin", init = "/System/Applications/PaperWork.app";
String root = "ramfs:0";
Vector<String> mount;
bool enableVESA = true;
for (u32int i = 0; i < opts.size(); i++) {
Vector<String> opt = opts[i].split(":");
if (opt[0] == "vesa" && opt[1] != "enabled") enableVESA = false;
if (opt[0] == "keymap") keymap = opt[1];
if (opt[0] == "init") init = opt[1];
if (opt[0] == "root") root = opts[i].substr(5);
if (opt[0] == "mount") mount.push(opts[i].substr(6));
}
//*************************************** DEVICE SETUP
Dev::registerDevice(new PS2Keyboard()); //Initialize keyboard driver
Kbd::setFocus(kvt); //Set focus to virtual terminal
if (enableVESA) Dev::registerDevice(new VESADisplay());
FloppyController::detect();
ATAController::detect();
//*************************************** MOUNT FILESYSTEMS
{ // mount root filesystem
if (!VFS::mount(String("/:") += root, kvt, mbd)) PANIC("Cannot mount root filesystem.");
}
DirectoryNode* cwd;
cwd = VFS::getRootNode();
Task::currProcess()->setCwd(cwd);
// mount other filesystems
for (u32int i = 0; i < mount.size(); i++) {
VFS::mount(mount[i], kvt, mbd);
}
//FATFS::mount(Part::partitions[0], (DirectoryNode*)VFS::createDirectory("/Mount"));
//*************************************** LOAD SYSTEM STUFF
if (keymap != "builtin") {
if (!Kbd::loadKeymap(keymap)) *kvt << "WARNING : Could not load keymap " << keymap << ", using built-in keymap instead.";
}
Log::init(KL_STATUS); //Setup logging
Log::log(KL_STATUS, "kmain : Melon booting.");
Usr::load(); //Setup user managment
Log::log(KL_STATUS, "kmain : User list loaded");
if (init.empty()) {
*kvt << "\n";
new KernelShell(cwd, kvt);
while (KernelShell::getInstances() > 0) {
Task::currThread()->sleep(100);
}
Sys::halt();
} else {
selectVideoMode(*kvt);
//Create a VT for handling the Melon bootup logo
SimpleVT *melonLogoVT = new SimpleVT(melonLogoLines, melonLogoCols, TXTLOGO_FGCOLOR, TXTLOGO_BGCOLOR);
melonLogoVT->map(1);
new Thread(logoAnimation, (void*)melonLogoVT, true);
Process* p = Process::run(init, 0);
if (p == 0) {
PANIC((char*)(u8int*)ByteArray(String("Could not launch init : ") += init));
} else {
Log::log(KL_STATUS, String("kmain : Starting init : ") += init);
VirtualTerminal* vt = new ScrollableVT(Disp::textRows() - 10, Disp::textCols() - 4,
200, SHELL_FGCOLOR, SHELL_BGCOLOR);
Kbd::setFocus(vt);
((ScrollableVT*)vt)->map(9);
p->setInVT(vt);
p->setOutVT(vt);
p->start();
while (p->getState() != P_FINISHED) Task::currThread()->sleep(100);
PANIC("Init has terminated");
}
}
PANIC("END OF KMAIN");
}
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