void monitor_write_dec(s32int number){
char *converted = dec_to_string(number);
monitor_write(converted);
monitor_put('\n');
}
// Output a null-terminated ASCII string to the monitor.
void monitor_write(char *c)
{
int i = 0;
while(c[i])
monitor_put(c[i++]);
}
int main(struct multiboot *mboot_ptr, u32int initial_stack)
{
initial_esp = initial_stack;
// Initialise all the ISRs and segmentation
init_descriptor_tables();
// Initialise the screen (by clearing it)
monitor_clear();
// Initialise the PIT to 100Hz
asm volatile("sti");
init_timer(50);
// Find the location of our initial ramdisk.
ASSERT(mboot_ptr->mods_count > 0);
u32int initrd_location = *((u32int*)mboot_ptr->mods_addr);
u32int initrd_end = *(u32int*)(mboot_ptr->mods_addr+4);
// Don't trample our module with placement accesses, please!
placement_address = initrd_end;
// Start paging.
initialise_paging();
// Start multitasking.
initialise_tasking();
// Initialise the initial ramdisk, and set it as the filesystem root.
fs_root = initialise_initrd(initrd_location);
// Create a new process in a new address space which is a clone of this.
int ret = fork();
monitor_write("fork() returned ");
monitor_write_hex(ret);
monitor_write(", and getpid() returned ");
monitor_write_hex(getpid());
monitor_write("\n============================================================================\n");
// The next section of code is not reentrant so make sure we aren't interrupted during.
asm volatile("cli");
// list the contents of /
int i = 0;
struct dirent *node = 0;
while ( (node = readdir_fs(fs_root, i)) != 0)
{
monitor_write("Found file ");
monitor_write(node->name);
fs_node_t *fsnode = finddir_fs(fs_root, node->name);
if ((fsnode->flags&0x7) == FS_DIRECTORY)
{
monitor_write("\n\t(directory)\n");
}
else
{
monitor_write("\n\t contents: \"");
char buf[256];
u32int sz = read_fs(fsnode, 0, 256, buf);
int j;
for (j = 0; j < sz; j++)
monitor_put(buf[j]);
monitor_write("\"\n");
}
i++;
}
monitor_write("\n");
asm volatile("sti");
return 0;
}
void monitor_write_hex(u32int value){
char *converted = hex_to_string(value);
monitor_write("0x");
monitor_write(converted);
monitor_put('\n');
}
void monitor_print(char* str) {
if(str != NULL) {
while(*str != 0)
monitor_put(*(str++));
}
}
void isr_handler(registers_t regs)
{
monitor_write("recieved interrupt: ");
monitor_write_dec(regs.int_no);
monitor_put('\n');
}
static void printit(INT32 chr, APTR ptr)
{
monitor_put(chr);
}
void keyboard_handler ( registers_t *regs ) {
u8int scancode = inb ( 0x60 );
u8int specialKey = 0;
specialKey = isSpecialKey ( scancode );
currentKey = 0;
if ( scancode & 0x80 ) {
scancode = scancode - 0x80;
if ( scancode == 42 || scancode - 0x80 == 54 ) {
shift_flag = 0;
}
} else {
if ( scancode == 42 || scancode - 0x80 == 54 ) {
shift_flag = 1;
}
if ( scancode == 0x3A ) {
CapsOn = !CapsOn;
i8042_Caps(CapsOn, 0, 0);
}
if ( shift_flag == 0 && CapsOn == 0 ) {
//monitor_put ( lowerCaseKbdus[scancode] );
setKey ( lowerCaseKbdus[scancode] ); //set Current Key for key logger.
}
if ( shift_flag == 1 || CapsOn == 1 ) {
//monitor_put ( upperCaseKbdus[scancode] );
setKey ( upperCaseKbdus[scancode] ); //set Current Key for key logger.
}
//monitor_put(currentKey); //standard print keys to screen
if ( specialKey != 0 ) {
switch ( specialKey ) {
case 1:
monitor_command ( "cursor", "left" );
break;
case 2:
monitor_command ( "cursor", "right" );
break;
case 3:
monitor_command ( "cursor", "up" );
break;
case 4:
monitor_command ( "cursor", "down" );
break;
case 5:
monitor_put ( '\r' );
setKey ( '\r' );
break;
default:
break;
}
}
}
//i8042_Caps(CapsOn, 0, 0);
}
/* Handles the keyboard interrupt */
static void keyboard_handler(registers_t* regs)
{
unsigned char scancode;
//Read scancode
scancode = inb(0x60);
switch (scancode)
{
case 0x3A:
/* CAPS_LOCK LEDS */
outb(0x60,0xED);
ltmp |= 4;
outb(0x60,ltmp);
if(caps_flag)
caps_flag=0;
else
caps_flag=1;
break;
case 0x45:
/* NUM_LOCK LEDS */
outb(0x60,0xED);
ltmp |= 2;
outb(0x60,ltmp);
break;
case 0x46:
/* SCROLL_LOCK LEDS */
outb(0x60,0xED);
ltmp |= 1;
outb(0x60,ltmp);
break;
case 60: /* F12 */
reboot();
break;
default:
break;
}
if (scancode & 0x80)
{
//Key release
//Left and right shifts
if (scancode - 0x80 == 42 || scancode - 0x80 == 54)
shift_flag = 0;
} else {
//Keypress (normal)
//Shift
if (scancode == 42 || scancode == 54)
{
shift_flag = 1;
return;
}
//Gets()
if(kbdus[scancode] == '\n')
{
if(gets_flag == 0) do_gets();
gets_flag++;
for(;kb_count; kb_count--)
buffer[kb_count] = 0;
} else {
if(kbdus[scancode] == '\b')
{
if(kb_count)
buffer[kb_count--] = 0;
} else {
buffer[kb_count++] = kbdus[scancode];
}
}
//Print key
if(graphical_mode == 2)
{
if(current_window.id != 0)
{
if(kbdus[scancode] >= 97 && kbdus[scancode] <= 122)
plot_char_abs(shell_csr_x, shell_csr_y, (kbdus[scancode]-32), WINDOW_COLOUR_TOPBAR_TEXT, current_window.width, (u32int*)current_window.data);
else
plot_char_abs(shell_csr_x, shell_csr_y, kbdus[scancode], WINDOW_COLOUR_TOPBAR_TEXT, current_window.width, (u32int*)current_window.data);
put_buffer(current_window.x,current_window.y,current_window.width,current_window.height,(u32int*)current_window.data);
} else {
if(kbdus[scancode] >= 97 && kbdus[scancode] <= 122)
vgaPutchar (g_csr_x,g_csr_y,(kbdus[scancode]-32),WINDOW_COLOUR_TOPBAR_TEXT);
else
vgaPutchar (g_csr_x,g_csr_y,(kbdus[scancode]),WINDOW_COLOUR_TOPBAR_TEXT);
refresh_screen();
}
} else {
if(graphical_mode == 1)
{
if(kbdus[scancode] >= 97 && kbdus[scancode] <= 122)
vgaPutchar (g_csr_x,g_csr_y,(kbdus[scancode]-32),1); //A-Z
else
vgaPutchar (g_csr_x,g_csr_y,(kbdus[scancode]),1); //0-9
refresh_screen();
} else
monitor_put(kbdus[scancode]);
}
return;
}
}