summaryrefslogtreecommitdiff
path: root/Source/Kernel/Core/kmain.wtf.cpp
blob: a8fb002fa2b9ce471d961ff6087ac8a94067d4f1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
//This file contains the kernel's main procedure

#include <common.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 <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 <SyscallManager/IDT.ns.h>
#include <String.class.h>
#include <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 <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);

#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";

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 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);
	melonLogoVT->map(1);

	//Create a VT for logging what kernel does
	SimpleVT *kvt = new ScrollableVT(3, 69, 10, KVT_FGCOLOR, KVT_BGCOLOR);
	kvt->map(15);

	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); 
	new Thread(logoAnimation, (void*)melonLogoVT, true); OK(kvt);

	PROCESSING(kvt, "Mounting first module as ramfs on root directory...");
	FileSystem* fs = RamFS::mount((u8int*)mods[0].mod_start, 1024 * 1024, NULL);
	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
	if (!Kbd::loadKeymap("fr")) Log::log(KL_ERROR, "kmain : could not load french keymap.");
	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");
	Log::log(KL_STATUS, "kmain : Interrupts enabled.");

	new KernelShell(cwd);	//No need to save that in a var, it is automatically destroyed anyways
	Log::log(KL_STATUS, "kmain : Kernel shell launched");
	//kvt->unmap();

	while (KernelShell::getInstances() > 0) {
		Task::currThread()->sleep(100);
	}

	Log::log(KL_STATUS, "kmain : All kernel shells finished. Halting.");
	Sys::halt();

	PANIC("END OF KMAIN");
}