static void
keycode_run()
{
for (;;) {
halt();
key_t key;
bool avail;
while ((avail = kb_getkey(&key)) != false) {
if (key.ch) {
tty_printf(
TTY_CONSOLE,
"Keycode: \033[%c]%02x\033[-] meta=%02x '%c'\n",
key.brk == KEYBRK_UP ? 'e' : '2',
key.code,
key.meta,
key.ch);
}
else {
tty_printf(
TTY_CONSOLE,
"Keycode: \033[%c]%02x\033[-] meta=%02x\n",
key.brk == KEYBRK_UP ? 'e' : '2',
key.code,
key.meta);
}
if ((key.brk == KEYBRK_UP) && (key.meta & META_ALT) &&
(key.code == KEY_TAB)) {
switch_mode(&mode_command);
return;
}
}
}
}
static void
command_run()
{
char cmd[256];
int cmdlen = 0;
for (;;) {
halt();
key_t key;
bool avail;
while ((avail = kb_getkey(&key)) != false) {
// If a printable character was typed, append it to the command.
if (key.ch >= 32 && key.ch < 127) {
if (cmdlen < arrsize(cmd) - 1) {
cmd[cmdlen] = key.ch;
tty_printc(TTY_CONSOLE, cmd[cmdlen]);
cmdlen++;
}
}
// Handle special keys (like enter, backspace).
else if (key.brk == KEYBRK_DOWN) {
if (key.code == KEY_ENTER) {
tty_printc(TTY_CONSOLE, '\n');
// Strip trailing whitespace.
while (cmdlen > 0 && cmd[cmdlen - 1] == ' ')
cmdlen--;
cmd[cmdlen] = 0;
// Execute the command.
bool cont = command_exec(cmd);
cmdlen = 0;
if (cont)
command_prompt();
else
return;
}
else if (key.code == KEY_BACKSPACE && cmdlen > 0) {
tty_printc(TTY_CONSOLE, '\b');
cmdlen--;
}
}
}
}
}
void kb_wait(void)
{
int key;
while((key = kb_getkey()) == -1) {
/* put the processor to sleep while waiting for keypresses, but first
* make sure interrupts are enabled, or we'll sleep forever
*/
__asm {
sti
hlt
}
}
kb_putback(key);
}
