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#include "kernel.h"
#include "serial.h"
#include "asm_pic.h"
#include "multiboot.h"
#include "acpi.h"
#include "gdt.h"
#include "interrupts.h"
#include "mem.h"
#include "vmem.h"
//-- clean below headers --//
#include "apic.h"
#include "kernel/scheduler.h"
#include "driver/timer.h"
#include "driver/keyboard.h"
#include "driver/mouse.h"
#include "syscalls.h"
#include "fifo.h"
#include "asm_smp.h"
#include "asm_x86.h"
#include "ringbuffer.h"
#include "driver/screen.h"
#include "smp.h"
#include "fs/fs.h"
#include "kmalloc.h"
#include "driver/vesa.h"
/* F00L 0S Entry point (called directly from asm/multiboot.asm */
void kernel_main(uint32_t eax,uint32_t ebx)
{
// -- COM1 -- //
serial_init();
klog("Communication Port (COM1) initialized.");
// -- PR & VERSION BANNER -- //
klog("======================================");
klog("F00L- 0S / The Fool's Operating System");
klog("(C) 2018 / Michal Idziorek (m.i@gmx.at)");
klog("Compiled on: %s at %s",__DATE__,__TIME__);
klog("Version: git-commit: %s",GIT_REVISION);
klog("======================================");
// -- DISABLE LEGACY PIC -- //
klog("Remapping & Disabling Programmable Interrupt Controller (PIC) ...");
fixme("io_wait & spurious interrupts");
asm_pic_setup();
// -- GET CONFIGS -- //
klog("Read Multiboot Structures ...");
multiboot_information *cfg_multiboot;
cfg_multiboot=multiboot_read(eax, ebx,false);
klog("Read Advanced Power Configuration Interface (ACPI) Structures ...");
acpi_information cfg_acpi;
bool acpi_found=acpi_fill(&cfg_acpi);
fixme("try to read (legacy) multiprocessor mp strucutres (see: xxx/mp.c)");
if(!acpi_found) kpanic("We Currently rely on ACPI Structures Sorry!");
// -- GDT -- //
klog("Global Descriptor Table (GDT) init ...");
gdt_init();
// -- IVT -- //
klog("Interrupt Vector Table (IVT) init ...");
interrupts_init(0x08);
interrupts_install();
fixme("register interrupt callback funcs (instead hardcoded dispatcher)");
// -- APIC -- //
klog("Advanced Programmable Interrupt Controller (APIC) config ...");
apic_init(&cfg_acpi);
ioapic_config();
apic_enable();
apic_init_timer(3);// freq in HZ
// -- MEMORY MANAGEMENT -- //
klog("Memory init ... ");
mem_init(cfg_multiboot);
klog("Vritual Memory / Paging init ... ");
fixme("do not disable anymore on context switching!");
fixme("write convenneint management funcs as: mapCPU, mapKErnel, map USerspace..");
fixme("move stack and guard with empty pages!");
vmem_init(0, // this is hardcoded to first 32megs anyway
(uint32_t)cfg_multiboot->framebuffer_addr,
cfg_acpi.local_apic_address,
cfg_acpi.io_apic_address);
struct pdirectory_struct *dir=vmem_kernel_dir();
x86_set_page_directory(dir);
x86_paging_enable();
// temporary TODO
uint32_t *cpu_mem=0x8000000; //1024 pages from here on are mapped per cpu for testing! TODO: dynamic!
*cpu_mem=apic_id();
// -- RAM IMAGE -- //
klog("Ram Filesystem init ... ");
fs_mount(cfg_multiboot);
// -- VESA -- //
klog("Video Electronics Standards Association (VESA) init ... "); // TODO check if text or fb?
uint32_t addr=kballoc(1);
fs_content("/binfont.bin",addr,0x100); // copy font (0x100 bytes) to memory.
vesa_init(cfg_multiboot->vbe_control_info,cfg_multiboot->vbe_mode_info,addr);
// -- STDIN/STDOUT -- //
klog("stdin/stdout init ...");
uint32_t sstdin = syscall_open("stdin",0,0); // stdin 0
uint32_t sstdout = syscall_open("term",0,0); // stdout 1
uint32_t sstderr = syscall_open("stderr",0,0); // stderr 2
klog("Keyboard init ...");
keyboard_init(0);
klog("Mouse init ...");
mouse_init();
klog("Symmetric Multi Processing (SMP) start ... ");
smp_start_aps(&cfg_acpi);
klog("Programmable Interval Timer (PIT) init ...");
uint64_t unixtime=timer_init();
klog("Unix Time = %u seconds",unixtime);
klog("Unlock application processors ... ");
asm_smp_unlock();
PutFont('X', 100,200, 0x00ffff,0xff00ff); // TODO temporary!
klog("Enable Interrupts ... ");
x86_sti(); // this will start processing hardware interrupts
// now just wait until our scheduler kicks in.
while(1)asm("hlt");
}
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