static void status_handle(struct m68k_serial *info, unsigned short status)
{
#if 0
if(status & DCD) {
if((info->port.tty->termios->c_cflag & CRTSCTS) &&
((info->curregs[3] & AUTO_ENAB)==0)) {
info->curregs[3] |= AUTO_ENAB;
info->pendregs[3] |= AUTO_ENAB;
write_zsreg(info->m68k_channel, 3, info->curregs[3]);
}
} else {
if((info->curregs[3] & AUTO_ENAB)) {
info->curregs[3] &= ~AUTO_ENAB;
info->pendregs[3] &= ~AUTO_ENAB;
write_zsreg(info->m68k_channel, 3, info->curregs[3]);
}
}
#endif
/* If this is console input and this is a
* 'break asserted' status change interrupt
* see if we can drop into the debugger
*/
if((status & URX_BREAK) && info->break_abort)
batten_down_hatches();
return;
}
static int emulate_raw(unsigned int keycode, int down)
{
#ifdef CONFIG_MAC_EMUMOUSEBTN
if (mac_hid_mouse_emulate_buttons(1, keycode, down))
return 0;
#endif /* CONFIG_MAC_EMUMOUSEBTN */
#if defined(CONFIG_MAC_ADBKEYCODES) || defined(CONFIG_ADB_KEYBOARD)
if (!mac_hid_keyboard_sends_linux_keycodes()) {
if (keycode > 255 || !mac_keycodes[keycode])
return -1;
handle_scancode((mac_keycodes[keycode] & 0x7f), down);
return 0;
}
#endif /* CONFIG_MAC_ADBKEYCODES || CONFIG_ADB_KEYBOARD */
if (keycode > 255 || !x86_keycodes[keycode])
return -1;
if (keycode == KEY_PAUSE) {
handle_scancode(0xe1, 1);
handle_scancode(0x1d, down);
handle_scancode(0x45, down);
return 0;
}
if (keycode == KEY_SYSRQ && x86_sysrq_alt) {
handle_scancode(0x54, down);
return 0;
}
#ifdef CONFIG_SPARC64
if (keycode == KEY_A && sparc_l1_a_state) {
sparc_l1_a_state = 0;
batten_down_hatches();
}
#endif
if (x86_keycodes[keycode] & 0x100)
handle_scancode(0xe0, 1);
handle_scancode(x86_keycodes[keycode] & 0x7f, down);
if (keycode == KEY_SYSRQ) {
handle_scancode(0xe0, 1);
handle_scancode(0x37, down);
}
if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)
x86_sysrq_alt = down;
#ifdef CONFIG_SPARC64
if (keycode == KEY_STOP)
sparc_l1_a_state = down;
#endif
return 0;
}
static _INLINE_ void status_handle(struct bf535_serial *info, unsigned short status)
{
/* If this is console input and this is a
* 'break asserted' status change interrupt
* see if we can drop into the debugger
*/
if((status & UART_LSR_BI) && info->break_abort)
batten_down_hatches();
return;
}
static _INLINE_ void receive_chars(struct NIOS_serial *info, struct pt_regs *regs, unsigned short rx)
{
struct tty_struct *tty = info->tty;
unsigned char ch;
np_uart * uart= (np_uart *)(info->port);
/*
* This do { } while() loop will get ALL chars out of Rx FIFO
*/
do {
ch = uart->np_uartrxdata;
if(info->is_cons) {
#ifdef CONFIG_MAGIC_SYSRQ
if(rx & np_uartstatus_brk_mask) {
batten_down_hatches();
return;
} else if (ch == 0x10) { /* ^P */
show_state();
show_mem();
return;
} else if (ch == 0x12) { /* ^R */
hard_reset_now();
return;
#ifdef DEBUG
} else if (ch == 0x02) { /* ^B */
batten_down_hatches();
return;
} else if (ch == 0x01) { /* ^A */
asm("trap 0"); /* Back to monitor */
return; /* (won't be coming back) */
#endif
}
#endif /* CONFIG_MAGIC_SYSRQ */
}
if(!tty)
goto clear_and_exit;
/*
* Make sure that we do not overflow the buffer
*/
if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
queue_task(&tty->flip.tqueue, &tq_timer);
return;
}
if(rx & np_uartstatus_pe_mask) {
*tty->flip.flag_buf_ptr++ = TTY_PARITY;
status_handle(info, rx);
} else if(rx & np_uartstatus_roe_mask) {
*tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
status_handle(info, rx);
} else if(rx & np_uartstatus_fe_mask) {
*tty->flip.flag_buf_ptr++ = TTY_FRAME;
status_handle(info, rx);
} else if(rx & np_uartstatus_brk_mask) {
*tty->flip.flag_buf_ptr++ = TTY_BREAK;
status_handle(info, rx);
} else {
*tty->flip.flag_buf_ptr++ = 0; /* XXX */
}
*tty->flip.char_buf_ptr++ = ch;
tty->flip.count++;
} while((rx = uart->np_uartstatus) & np_uartstatus_rrdy_mask);
queue_task(&tty->flip.tqueue, &tq_timer);
clear_and_exit:
return;
}