void timer_isr(void)
{
if (++nr_ticks%32 == 31)
con_putc('X');
pic_cmd_eoi();
return;
}
/*======================================*
* tty_write
*
* Write to the tty device from the given
* buffer.
*
* @buf Character buffer to write from.
* @count How many characters to write.
*
* @returns How many characters that were
* actually written.
*======================================*/
int tty_write(char *buf, uint32_t count)
{
// the tty device should have some sort of
// write queue, but right now we just print
// the characters in 'buf'.
char c, *b = buf;
while(count--) {
c = *b++;
con_putc(c);
}
return b - buf;
}
void con_putsw( const wchar_t *s )
{
while( *s ) {
con_putc( *s++ );
}
}
void con_puts( const char *s )
{
while( *s ) {
con_putc( *s++ );
}
}
static void con_putch(void* p, char c)
{
con_putc(c);
}
void con_char_handler(char newchar) {
if((newchar>=0x20 || newchar == 0x0D || newchar == 0x08 || newchar == 0x0A)
&& !con_escape_flag) {
con_buf[(int)con_buf_index] = newchar;
con_buf_index++;
}
switch(newchar) {
case 0x08: //Backspace
if(con_buf_index>=2 && !con_escape_flag) {
con_buf_index -= 2; //Erase last char
con_putc(&newchar);
con_putc(" ");
con_putc(&newchar);
} else {
con_buf_index = 0;
}
break;
case '\r': //Carriage Return
if(!con_entry_flag && con_buf_index > 1 && !con_escape_flag) {
memcpy(con_entry, con_buf, con_buf_index - 1);
con_entry[con_buf_index - 1] = '\0';//convert in string
con_entry_index = con_buf_index - 1;
con_buf_index = 0;
con_entry_flag = TRUE;
}
break;
case '\n': //newline
if(!con_entry_flag && con_buf_index > 1 && !con_escape_flag) {
memcpy(con_entry, con_buf, con_buf_index - 1);
con_entry[con_buf_index - 1] = '\0';//convert in string
con_entry_index = con_buf_index - 1;
con_buf_index = 0;
con_entry_flag = TRUE;
}
break;
case '\e':
con_escape_flag = TRUE;
break;
default:
if(con_escape_flag) { //space key pressed
if(con_arrow_flag) { //arrow
if(newchar == 'A') {
// con_hist_up();
con_escape_flag = FALSE;
con_arrow_flag = FALSE;
}
if(newchar == 'B') {
con_escape_flag = FALSE;
con_arrow_flag = FALSE;
}
if(newchar == 'C') {
//con_hist_right();NOT IMPLEMENTED
con_escape_flag = FALSE;
con_arrow_flag = FALSE;
}
if(newchar == 'D') {
//con_hist_down();NOT IMPLEMENTED
con_escape_flag = FALSE;
con_arrow_flag = FALSE;
}
}
else {
if(newchar == '[') {
con_arrow_flag = TRUE;
}
}
}
else {
con_putc(&newchar);
}
break;
}
if(con_buf_index >= CON_BUF_WIDTH) {
con_buf_index = 0;
con_printf("\r\n Command to long \r\n>>");
}
con_prev_char = newchar;
return;
}
