diff options
| -rw-r--r-- | drivers/s390/char/tty3270.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index 402eff3c1634..0a9f219fdc7c 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -92,6 +92,7 @@ struct tty3270 { unsigned char inattr; /* Visible/invisible input. */ int throttle, attn; /* tty throttle/unthrottle. */ struct tasklet_struct readlet; /* Tasklet to issue read request. */ + struct tasklet_struct hanglet; /* Tasklet to hang up the tty. */ struct kbd_data *kbd; /* key_maps stuff. */ /* Escape sequence parsing. */ @@ -646,6 +647,16 @@ tty3270_issue_read(struct tty3270 *tp, int lock) } /* + * Hang up the tty + */ +static void +tty3270_hangup_tasklet(struct tty3270 *tp) +{ + tty_port_tty_hangup(&tp->port, true); + raw3270_put_view(&tp->view); +} + +/* * Switch to the tty view. */ static int @@ -678,11 +689,14 @@ tty3270_irq(struct tty3270 *tp, struct raw3270_request *rq, struct irb *irb) } if (rq) { - if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { rq->rc = -EIO; - else + raw3270_get_view(&tp->view); + tasklet_schedule(&tp->hanglet); + } else { /* Normal end. Copy residual count. */ rq->rescnt = irb->scsw.cmd.count; + } } else if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) { /* Interrupt without an outstanding request -> update all */ tp->update_flags = TTY_UPDATE_ALL; @@ -739,6 +753,9 @@ tty3270_alloc_view(void) tasklet_init(&tp->readlet, (void (*)(unsigned long)) tty3270_read_tasklet, (unsigned long) tp->read); + tasklet_init(&tp->hanglet, + (void (*)(unsigned long)) tty3270_hangup_tasklet, + (unsigned long) tp); INIT_WORK(&tp->resize_work, tty3270_resize_work); return tp; @@ -1812,7 +1829,22 @@ tty3270_unthrottle(struct tty_struct * tty) static void tty3270_hangup(struct tty_struct *tty) { - // FIXME: implement + struct tty3270 *tp; + + tp = tty->driver_data; + if (!tp) + return; + spin_lock_bh(&tp->view.lock); + tp->cx = tp->saved_cx = 0; + tp->cy = tp->saved_cy = 0; + tp->highlight = tp->saved_highlight = TAX_RESET; + tp->f_color = tp->saved_f_color = TAC_RESET; + tty3270_blank_screen(tp); + while (tp->nr_lines < tp->view.rows - 2) + tty3270_blank_line(tp); + tp->update_flags = TTY_UPDATE_ALL; + spin_unlock_bh(&tp->view.lock); + tty3270_set_timer(tp, 1); } static void |