kmain() {
int i,num;
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 */
setup_IDT_entry (&idt[0x08], 0x08, (dword)&_int_08_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x80], 0x08, (dword)&_int_80_hand, ACS_INT, 0);
/* Carga de IDTR */
idtr.base = 0;
idtr.base +=(dword) &idt;
idtr.limit = sizeof(idt)-1;
_lidt (&idtr);
_Cli();
/* Habilito interrupcion de timer tick*/
//_mascaraPIC1(INT_08 & INT_09 & INT_80);
_mascaraPIC1(0x00);
_mascaraPIC2(NONE);
_Sti();
initKeyBoard();
initVideo();
initShell();
doubleFlagsFix(1.1);
while (1) {
updateShell();
}
}
kmain() {
terminal_init();
setup_IDT_entry (&idt[0x08], 0x08, (dword)&_int_08_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x74], 0x08, (dword)&_int_74_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x80], 0x08, (dword)&_int_80_hand, ACS_INT, 0);
/* IDTR Setting */
idtr.base = 0;
idtr.base +=(dword) &idt;
idtr.limit = sizeof(idt)-1;
_lidt(&idtr);
/* Interrupt unmasking */
_cli();
_maskPIC1(0xF8); /*0XF8*/
_maskPIC2(0xEF); /*0XEF*/
_sti();
video_init();
timertick_init();
rtc_init();
mouse_init();
shell_run();
}
void
initializeIDT()
{
setup_IDT_entry (&idt[0x08], 0x08, (dword)&_int_08_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x80], 0x08, (dword)&_int_80_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x79], 0x08, (dword)&_int_79_hand, ACS_INT, 0);/*for block_process and kill*/
idtr.base = 0;
idtr.base += (dword)&idt;
idtr.limit = sizeof(idt) - 1;
_lidt (&idtr);
return;
}
kmain() {
int i, num;
/* Borra la pantalla. */
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 */
setup_IDT_entry(&idt[0x08], 0x08, (dword) & _int_08_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ1 */
setup_IDT_entry(&idt[0x09], 0x08, (dword) & _int_09_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE int80h */
setup_IDT_entry(&idt[0x80], 0x08, (dword) & _int_80_hand, ACS_INT, 0);
//TODO: CARGAR LA PAG DE TABLAS
/* Carga de IDTR */
idtr.base = 0;
idtr.base += (dword) & idt;
idtr.limit = sizeof(idt) - 1;
_lidt(&idtr);
_Cli();
/* Habilito interrupcion de timer tick*/
_mascaraPIC1(0xFC);
_mascaraPIC2(0xFF);
_Sti();
startKeyboard();
initVideo();
shellStart();
/* KeepAlive loop */
while (1) {
// Main del shell
shellMain();
}
}
void setUpSyscalls(){
sysCalls[0] = &sys_clear;
sysCalls[1] = &sys_allocate;
sysCalls[2] = &sys_free;
sysCalls[3] = &sys_read;
sysCalls[4] = &sys_write;
sysCalls[5] = &sys_timezone;
sysCalls[6] = &sys_time;
sysCalls[7] = &sys_date;
sysCalls[8] = &sys_addTimerEvent;
sysCalls[9] = &sys_removeTimerEvent;
sysCalls[10] = &sys_sleep;
sysCalls[11] = &sys_pixel;
sysCalls[12] = &sys_line;
sysCalls[13] = &sys_square;
sysCalls[14] = &sys_cursor;
sysCalls[15] = &sys_readData;
sysCalls[16] = &sys_changeFont;
sysCalls[17] = &sys_getConsoleSize;
sysCalls[18] = &sys_allocatePages;
sysCalls[19] = &sys_freePages;
sysCalls[20] = &sys_reallocatePages;
sysCalls[21] = &sys_allocateNewMemory;
sysCalls[22] = &sys_reallocateNewMemory;
sysCalls[23] = &sys_createMutex;
sysCalls[24] = &sys_releaseMutex;
sysCalls[25] = &sys_tryLock;
sysCalls[26] = &sys_unlock;
sysCalls[27] = &sys_exec;
sysCalls[28] = &sys_ps;
sysCalls[29] = &sys_kill;
sysCalls[30] = &sys_leave;
sysCalls[31] = &sys_yield;
sysCalls[32] = &sys_myPID;
sysCalls[33] = &sys_openPipe;
sysCalls[34] = &sys_closePipe;
sysCalls[35] = &sys_initCondVar;
sysCalls[36] = &sys_signalCondVar;
sysCalls[37] = &sys_waitCondVar;
sysCalls[38] = &sys_circle;
sysCalls[39] = &sys_broadcastCondVar;
sysCalls[40] = &sys_ipcs;
sysCalls[41] = &sys_isRunning;
sysCalls[42] = &sys_memoryUsed;
setup_IDT_entry (SYSTEM_CALL_START_INDEX, 0x08, (qword)&_irq80Handler, ACS_INT);
}
void
reboot(void)
{
int i;
/* Blanqueo el idt */
for (i=0; i<10; i++)
setup_IDT_entry (&idt[i], 0x08, 0, ACS_INT, 0);
_Fault();
}
int main()
{
setup_IDT_entry(0x20, 0x8,(uint64_t) &_irq00Handler, 0x8E);
setup_IDT_entry(0x21, 0x8, (uint64_t)&_irq01Handler, 0x8E);
setup_IDT_entry(0x80, 0x8,(uint64_t) &syscallHandler, 0x8E);
picMasterMask(0xFC);
picSlaveMask(0xFF);
_sti();
ncPrint("[Kernel Main]");
ncNewline();
ncPrint(" Sample code module at 0x");
ncPrintHex((uint64_t)sampleCodeModuleAddress);
ncNewline();
ncPrint(" Calling the sample code module returned: ");
ncPrintHex(((EntryPoint)sampleCodeModuleAddress)());
ncNewline();
ncNewline();
ncPrint(" Sample data module at 0x");
ncPrintHex((uint64_t)sampleDataModuleAddress);
ncNewline();
ncPrint(" Sample data module contents: ");
ncPrint((char*)sampleDataModuleAddress);
ncNewline();
ncPrint("[Finished]");
while(1);
ncClear();
return 0;
}
void setDefaultIdt(){
int i;
byte aux = ACS_EXC;
for (i = 0; i < 255 ; i++){
if(i>=32)
aux = ACS_INT;
//else
//setDefaultSound(i);
setup_IDT_entry(&idt[i], 0x08, (dword) &int_13, aux, 0);
}
}
void setup_IDT_content() {
setDefaultIdt();
// Excepcion division por 0
setup_IDT_entry(&idt[0x00], 0x08, (dword) &int_00, ACS_EXC, ACS_USED);
setup_debug_info(0x00, "Div 0", "Excepcion lanzada cuando se divide por 0");
setDefaultSound(0x00);
// Excepcion: Overflow
setup_IDT_entry(&idt[0x0D], 0x08, (dword) &int_13, ACS_EXC, ACS_USED);
setup_debug_info(0x0D, "General Protection Exception", "Excepcion lanzada cuando no se encuentra un descriptor de excepcion.");
setDefaultSound(0x0D);
// Excepcion: Array out of bounds
setup_IDT_entry(&idt[0x03], 0x08, (dword) &int_03, ACS_EXC, ACS_USED);
setup_debug_info(0x03, "Debug Exception","Excepcion lanzada al momento de utilizar breakpoints");
setDefaultSound(0x03);
// IRQ0: timer tick
setup_IDT_entry(&idt[0x08], 0x08, (dword) &_int_08_hand, ACS_INT, ACS_USED);
setup_debug_info(0x08, "Timer Tick", "Interrupcion del timer tick");
// IRQ1: keyboard
setup_IDT_entry(&idt[0x09], 0x08, (dword) &_int_09_hand, ACS_INT, ACS_USED);
setup_debug_info(0x09, "Keyboard", "Interrupcion del teclado");
}
void load_idt()
{
setup_IDT_entry (0x20, 0x08, (uint64_t)&_irq00Handler, ACS_INT);
setup_IDT_entry (0x21, 0x08, (uint64_t)&_irq01Handler, ACS_INT);
setup_IDT_entry (0x80, 0x08, (uint64_t)&_syscallHandler, ACS_INT);
idtr.base = 0;
idtr.base += (uint64_t) &idt;
idtr.limit = (uint16_t) sizeof(idt)-1;
_lidt(&idtr);
//Solo interrupcion de teclado y timer tick habilitadas
picMasterMask(0xFC);
picSlaveMask(0xFF);
_sti();
}
kmain()
{
int i,num;
int flag = 0;
int vendor = 0xffff;
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 y IRQ1 */
// setup_IDT_entry (&idt[0x08], 0x08, (dword)&_int_08_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x80], 0x08, (dword)&_int_80_hand, ACS_INT, 0);
/* Por default el teclado esta en ingles */
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand_US,ACS_INT, 0);
/* Carga de IDTR */
idtr.base = 0;
idtr.base +=(dword) &idt;
idtr.limit = sizeof(idt)-1;
_lidt (&idtr);
_Cli();
/* Habilito interrupcion del teclado */
_mascaraPIC1(0xFD);
_mascaraPIC2(0xFF);
_Sti();
/* Se inicia el shell */
shell();
}
/**********************************************
kmain()
Punto de entrada de código C.
*************************************************/
kmain() {
int i, num;
// Paging.start(0x200000);
// init_malloc();
initialize_pics(0x20,0x70);
setup_IDT_entry(&idt[0x70], 0x08, (dword) & _rtc, ACS_INT, 0);
_cache_init();
hdd_init();
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 */
setup_IDT_entry (&idt[0x00], 0x08, (dword)&_int_00_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x01], 0x08, (dword)&_int_01_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x02], 0x08, (dword)&_int_02_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x03], 0x08, (dword)&_int_03_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x04], 0x08, (dword)&_int_04_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x05], 0x08, (dword)&_int_05_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x06], 0x08, (dword)&_int_06_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x07], 0x08, (dword)&_int_07_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x08], 0x08, (dword)&_int_08_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x0A], 0x08, (dword)&_int_0A_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x0B], 0x08, (dword)&_int_0B_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x0C], 0x08, (dword)&_int_0C_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x0D], 0x08, (dword)&_int_0D_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x0E], 0x08, (dword)&_int_0E_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x0F], 0x08, (dword)&_int_0F_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x10], 0x08, (dword)&_int_10_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x11], 0x08, (dword)&_int_11_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x12], 0x08, (dword)&_int_12_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x13], 0x08, (dword)&_int_13_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x14], 0x08, (dword)&_int_14_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x15], 0x08, (dword)&_int_15_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x16], 0x08, (dword)&_int_16_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x17], 0x08, (dword)&_int_17_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x18], 0x08, (dword)&_int_18_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x19], 0x08, (dword)&_int_19_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x1A], 0x08, (dword)&_int_1A_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x1B], 0x08, (dword)&_int_1B_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x1C], 0x08, (dword)&_int_1C_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x1D], 0x08, (dword)&_int_1D_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x1E], 0x08, (dword)&_int_1E_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x1F], 0x08, (dword)&_int_1F_hand, ACS_INT, 0);
// setup_IDT_entry (&idt[0x20], 0x08, (dword)&_int_20_hand, ACS_INT, 0);
// setup_IDT_entry (&idt[0x21], 0x08, (dword)&_int_21_hand, ACS_INT, 0);
setup_IDT_entry(&idt[0x20], 0x08, (dword) & _timer_tick_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ1 */
setup_IDT_entry(&idt[0x21], 0x08, (dword) & _KB_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE int80h */
setup_IDT_entry(&idt[0x80], 0x08, (dword) & _int_80_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE int79h */
setup_IDT_entry(&idt[0x79], 0x08, (dword) & _int_79_hand, ACS_INT, 0);
/* Carga de IDTR */
idtr.base = 0;
idtr.base += (dword) & idt;
idtr.limit = sizeof(idt) - 1;
_lidt(&idtr);
Cli();
int rate = 0x06;
_outb(0x70, 0x0A); //set index to register A
char prev=_inb(0x71); //get initial value of register A
_outb(0x70, 0x0A); //reset index to A
_outb(0x71, (prev & 0xF0) | rate); //write only our rate to A. Note, rate is the bottom 4 bits.
init_paging();
scheduler_init();
/* Habilito interrupcion de timer tick*/
_mascaraPIC1(0xFC);
_mascaraPIC2(0xFE);
_outb(0x70, 0x0B); //set the index to register B
prev= _inb(0x71); //read the current value of register B
_outb(0x70, 0x0B); //set the index again(a read will reset the index to register D)
_outb(0x71, prev | 0x40); //write the previous value or'd with 0x40. This turns on bit 6 of register B
Sti();
idle = create_process("idle", idle_main, 0, 0, 0, 0, 0, 0, 0, NULL, 0);
// We soon exit out of here :)
while (1);
}
/**********************************************
kmain()
Punto de entrada de código C.
*************************************************/
kmain() {
int i, num;
setup_IDT_entry(&idt[0x70], 0x08, (dword) & _rtc, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 */
setup_IDT_entry(&idt[0x08], 0x08, (dword) & _int_08_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ1 */
setup_IDT_entry(&idt[0x09], 0x08, (dword) & _int_09_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE int80h */
setup_IDT_entry(&idt[0x80], 0x08, (dword) & _int_80_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE int79h */
setup_IDT_entry(&idt[0x79], 0x08, (dword) & _int_79_hand, ACS_INT, 0);
/* Carga de IDTR */
idtr.base = 0;
idtr.base += (dword) & idt;
idtr.limit = sizeof(idt) - 1;
_lidt(&idtr);
Cli();
int rate = 0x06;
_outb(0x70, 0x0A); //set index to register A
char prev=_inb(0x71); //get initial value of register A
_outb(0x70, 0x0A); //reset index to A
_outb(0x71, (prev & 0xF0) | rate); //write only our rate to A. Note, rate is the bottom 4 bits.
scheduler_init();
/* Habilito interrupcion de timer tick*/
_mascaraPIC1(0x00);
_mascaraPIC2(0x00);
_outb(0x70, 0x0B); //set the index to register B
prev= _inb(0x71); //read the current value of register B
_outb(0x70, 0x0B); //set the index again(a read will reset the index to register D)
_outb(0x71, prev | 0x40); //write the previous value or'd with 0x40. This turns on bit 6 of register B
Sti();
idle = create_process("idle", idle_main, 0, 0, 0, 0, 0, 0, 0, NULL, 0);
// We soon exit out of here :)
while (1);
}
void
loadkeysus(void)
{
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand_US,ACS_INT, 0);
}