int kmain() {
initializeBuffer();
cursor = 0;
/* Borra la pantalla. */
clearScreen();
/* CARGA DE IDT */
setup_IDT_content();
/* Carga de IDTR */
setup_IDTR();
_Cli();
_mascaraPIC1(0xFC); /*Habilito timer tick, teclado*/
_mascaraPIC2(0xFF); /*Las interrupciones del segundo PIC quedan deshabilitadas*/
_Sti();
showSplashScreen();
shell();
_Cli();
goodbye();
_Sti();
return 0;
}
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();
}
}
void setup_PIC(){
_Cli();
_outb(0x21,0xFC);
_outb(0xA1,0xFF);
_Sti();
return;
}
void kill_in_kernel(int pid)
{
PROCESS * proc;
PROCESS * parent;
processNode * aux;
int i,j;
_Cli();
for (j = 0; j < 4; j++){
if( pid == terminals[j].PID && usrLoged ){
return;
}
}
if(pid == 0 || pid == logoutPID || pid == logPID)
{
_Sti();
return;
}
if(pid == CurrentPID)
actualKilled = 1;
proc = GetProcessByPID(pid);
if(proc->foreground){
parent = GetProcessByPID(proc->parent);
if(parent->waitingPid == proc->pid)
{
parent->waitingPid = 0;
awake_process(parent->pid);
}
}
aux = ((processNode*)ready);
while(aux != NULL)
{
if(aux->process->parent == pid)
kill(aux->process->pid);
aux = ((processNode*)aux->next);
}
aux = ((processNode *)ready);
if(aux->process->pid == pid)
ready = aux->next;
else {
while(aux->next != NULL && ((processNode *)aux->next)->process->pid != pid)
aux = ((processNode *)aux->next);
if(aux->next != NULL)
aux->next = ((processNode*)aux->next)->next;
}
for(i = 0; i < 100; i++)
if(last100[i] == proc->pid)
last100[i] = -1;
clear_proc_ptable(pid);
_Sti();
return ;
}
static void
b_write(int p, const void *buff, int size)
{
int i;
_Cli();
for(i = 0; i < size; i++) {
myout( p , ( (byte *) buff )[i] );
}
_Sti();
}
void send_departing_buffer(int cursor) {
while (is_transmit_empty() == 0)
;
int i = 0;
for (i = 0; i < cursor; i++) {
_Cli();
_outb(SERIAL_PORT, departing_buffer[i]); //no quiero ser interrumpido mientras escribo en el P.S
_Sti();
}
}
/**********************************************
Starting point of the whole OS
*************************************************/
int
kmain()
{
int i, h;
char * buffer = calloc(512 , 1);
_Cli();
k_clear_screen();
printf("screen clear\n");
//cache_initarray();
printf("array init\n");
//cache_sortarray();
printf("array sort\n");
initializeSemaphoreTable();
printf("semaphore init\n");
initializeIDT();
unmaskPICS();
initializePaging();
_StartCR3();
SetupScheduler();
//printf("after SetupScheduler\n");
for(h = 0; h < 200; h++){
write_disk(0,h,buffer,BLOCK_SIZE,0);
}
fd_table = (filedescriptor *)calloc(100,1);
masterBootRecord * mbr = (masterBootRecord *)malloc(512);
superblock = (masterBlock*)malloc(512);
bitmap = (BM*)calloc(BITMAP_SIZE,1);
inodemap = (IM*)calloc(INODEMAP_SIZE,1);
read_disk(0,0,mbr,BLOCK_SIZE,0);
if ( mbr->existFS == 0 ){
init_filesystem("Chinux", mbr);
}else{
load_filesystem();
}
ready = NULL;
for(i = 0; i < 4; i++)
startTerminal(i);
//free(mbr);
logPID = CreateProcessAt("Login", (int(*)(int, char**))logUser, 0, 0, (char**)0, PAGE_SIZE, 4, 1);
_Sti();
while(TRUE)
;
return 1;
}
static void
s_write(const void* buff, int size)
{
int i;
char *video = (char *) 0xb8000;
_Cli();
for(i = 0; i < size; i++)
{
video[screen_pos++]= *((char*)buff+i);
video[screen_pos++]= WHITE_TXT;
}
_Sti();
}
static void
k_read(char *buff, int size)
{
int i=0;
_Cli();
while( !BufferIsEmpty() && i< size ) {
buff[i] = GetFromBuffer() ;
i++;
}
_Sti();
}
void k_shutdown(){
k_disable();
k_shutdownScreen();
// Just to appreciate the art
_Sti();
sleep(30);
if(ACPIinitialized()){
acpiPowerOff();
}else{
_Cli();
while(1){}
}
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();
}
}
static void
s_read(char *buff, int size) {
int i=0;
char * video;
video = (char *) 0xb8000;
_Cli();
while( i< size ) {
buff[i] = *(video + screen_pos + CANT_COLS *2);
i++;
}
_Sti();
}
void end_process(void)
{
PROCESS * proc;
PROCESS * parent;
processNode * aux;
int i;
_Cli();
actualKilled = 1;
proc = GetProcessByPID(CurrentPID);
if(!proc->foreground)
printf("[%d]\tDone\t%s\n", proc->pid, proc->name);
else{
parent = GetProcessByPID(proc->parent);
if(parent->waitingPid == proc->pid)
{
parent->waitingPid = 0;
awake_process(parent->pid);
}
}
aux = ((processNode *)ready);
if(aux->process->pid == CurrentPID)
ready = aux->next;
else {
while(aux->next != NULL && ((processNode *)aux->next)->process->pid != CurrentPID)
aux = ((processNode *)aux->next);
if(aux->next != NULL)
aux->next = ((processNode*)aux->next)->next;
}
for(i = 0; i < 100; i++)
if(last100[i] == proc->pid)
last100[i] = -1;
clear_proc_ptable(proc->pid);
printf("Welcome\n");
_Sti();
return ;
}
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();
}
