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-rw-r--r--drivers/s390/char/con3270.c38
-rw-r--r--drivers/s390/char/tty3270.c42
2 files changed, 32 insertions, 48 deletions
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index d028d2ee83d..ed5396dae58 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -64,7 +64,7 @@ static struct con3270 *condev;
#define CON_UPDATE_ERASE 1 /* Use EWRITEA instead of WRITE. */
#define CON_UPDATE_LIST 2 /* Update lines in tty3270->update. */
#define CON_UPDATE_STATUS 4 /* Update status line. */
-#define CON_UPDATE_ALL 7
+#define CON_UPDATE_ALL 8 /* Recreate screen. */
static void con3270_update(struct con3270 *);
@@ -73,18 +73,10 @@ static void con3270_update(struct con3270 *);
*/
static void con3270_set_timer(struct con3270 *cp, int expires)
{
- if (expires == 0) {
- if (timer_pending(&cp->timer))
- del_timer(&cp->timer);
- return;
- }
- if (timer_pending(&cp->timer) &&
- mod_timer(&cp->timer, jiffies + expires))
- return;
- cp->timer.function = (void (*)(unsigned long)) con3270_update;
- cp->timer.data = (unsigned long) cp;
- cp->timer.expires = jiffies + expires;
- add_timer(&cp->timer);
+ if (expires == 0)
+ del_timer(&cp->timer);
+ else
+ mod_timer(&cp->timer, jiffies + expires);
}
/*
@@ -225,6 +217,12 @@ con3270_update(struct con3270 *cp)
spin_lock_irqsave(&cp->view.lock, flags);
updated = 0;
+ if (cp->update_flags & CON_UPDATE_ALL) {
+ con3270_rebuild_update(cp);
+ con3270_update_status(cp);
+ cp->update_flags = CON_UPDATE_ERASE | CON_UPDATE_LIST |
+ CON_UPDATE_STATUS;
+ }
if (cp->update_flags & CON_UPDATE_ERASE) {
/* Use erase write alternate to initialize display. */
raw3270_request_set_cmd(wrq, TC_EWRITEA);
@@ -302,7 +300,6 @@ con3270_read_tasklet(struct raw3270_request *rrq)
deactivate = 1;
break;
case 0x6d: /* clear: start from scratch. */
- con3270_rebuild_update(cp);
cp->update_flags = CON_UPDATE_ALL;
con3270_set_timer(cp, 1);
break;
@@ -382,30 +379,21 @@ con3270_issue_read(struct con3270 *cp)
static int
con3270_activate(struct raw3270_view *view)
{
- unsigned long flags;
struct con3270 *cp;
cp = (struct con3270 *) view;
- spin_lock_irqsave(&cp->view.lock, flags);
- cp->nr_up = 0;
- con3270_rebuild_update(cp);
- con3270_update_status(cp);
cp->update_flags = CON_UPDATE_ALL;
con3270_set_timer(cp, 1);
- spin_unlock_irqrestore(&cp->view.lock, flags);
return 0;
}
static void
con3270_deactivate(struct raw3270_view *view)
{
- unsigned long flags;
struct con3270 *cp;
cp = (struct con3270 *) view;
- spin_lock_irqsave(&cp->view.lock, flags);
del_timer(&cp->timer);
- spin_unlock_irqrestore(&cp->view.lock, flags);
}
static int
@@ -504,6 +492,7 @@ con3270_write(struct console *co, const char *str, unsigned int count)
con3270_cline_end(cp);
}
/* Setup timer to output current console buffer after 1/10 second */
+ cp->nr_up = 0;
if (cp->view.dev && !timer_pending(&cp->timer))
con3270_set_timer(cp, HZ/10);
spin_unlock_irqrestore(&cp->view.lock,flags);
@@ -624,7 +613,8 @@ con3270_init(void)
INIT_LIST_HEAD(&condev->lines);
INIT_LIST_HEAD(&condev->update);
- init_timer(&condev->timer);
+ setup_timer(&condev->timer, (void (*)(unsigned long)) con3270_update,
+ (unsigned long) condev);
tasklet_init(&condev->readlet,
(void (*)(unsigned long)) con3270_read_tasklet,
(unsigned long) condev->read);
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index aa7a114f652..38385677c65 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -112,7 +112,7 @@ struct tty3270 {
#define TTY_UPDATE_LIST 2 /* Update lines in tty3270->update. */
#define TTY_UPDATE_INPUT 4 /* Update input line. */
#define TTY_UPDATE_STATUS 8 /* Update status line. */
-#define TTY_UPDATE_ALL 15
+#define TTY_UPDATE_ALL 16 /* Recreate screen. */
static void tty3270_update(struct tty3270 *);
@@ -121,19 +121,10 @@ static void tty3270_update(struct tty3270 *);
*/
static void tty3270_set_timer(struct tty3270 *tp, int expires)
{
- if (expires == 0) {
- if (timer_pending(&tp->timer) && del_timer(&tp->timer))
- raw3270_put_view(&tp->view);
- return;
- }
- if (timer_pending(&tp->timer) &&
- mod_timer(&tp->timer, jiffies + expires))
- return;
- raw3270_get_view(&tp->view);
- tp->timer.function = (void (*)(unsigned long)) tty3270_update;
- tp->timer.data = (unsigned long) tp;
- tp->timer.expires = jiffies + expires;
- add_timer(&tp->timer);
+ if (expires == 0)
+ del_timer(&tp->timer);
+ else
+ mod_timer(&tp->timer, jiffies + expires);
}
/*
@@ -337,7 +328,6 @@ tty3270_write_callback(struct raw3270_request *rq, void *data)
tp = (struct tty3270 *) rq->view;
if (rq->rc != 0) {
/* Write wasn't successfull. Refresh all. */
- tty3270_rebuild_update(tp);
tp->update_flags = TTY_UPDATE_ALL;
tty3270_set_timer(tp, 1);
}
@@ -366,6 +356,12 @@ tty3270_update(struct tty3270 *tp)
spin_lock(&tp->view.lock);
updated = 0;
+ if (tp->update_flags & TTY_UPDATE_ALL) {
+ tty3270_rebuild_update(tp);
+ tty3270_update_status(tp);
+ tp->update_flags = TTY_UPDATE_ERASE | TTY_UPDATE_LIST |
+ TTY_UPDATE_INPUT | TTY_UPDATE_STATUS;
+ }
if (tp->update_flags & TTY_UPDATE_ERASE) {
/* Use erase write alternate to erase display. */
raw3270_request_set_cmd(wrq, TC_EWRITEA);
@@ -425,7 +421,6 @@ tty3270_update(struct tty3270 *tp)
xchg(&tp->write, wrq);
}
spin_unlock(&tp->view.lock);
- raw3270_put_view(&tp->view);
}
/*
@@ -570,7 +565,6 @@ tty3270_read_tasklet(struct raw3270_request *rrq)
tty3270_set_timer(tp, 1);
} else if (tp->input->string[0] == 0x6d) {
/* Display has been cleared. Redraw. */
- tty3270_rebuild_update(tp);
tp->update_flags = TTY_UPDATE_ALL;
tty3270_set_timer(tp, 1);
}
@@ -641,22 +635,20 @@ static int
tty3270_activate(struct raw3270_view *view)
{
struct tty3270 *tp;
- unsigned long flags;
tp = (struct tty3270 *) view;
- spin_lock_irqsave(&tp->view.lock, flags);
- tp->nr_up = 0;
- tty3270_rebuild_update(tp);
- tty3270_update_status(tp);
tp->update_flags = TTY_UPDATE_ALL;
tty3270_set_timer(tp, 1);
- spin_unlock_irqrestore(&tp->view.lock, flags);
return 0;
}
static void
tty3270_deactivate(struct raw3270_view *view)
{
+ struct tty3270 *tp;
+
+ tp = (struct tty3270 *) view;
+ del_timer(&tp->timer);
}
static int
@@ -743,6 +735,7 @@ tty3270_free_view(struct tty3270 *tp)
{
int pages;
+ del_timer_sync(&tp->timer);
kbd_free(tp->kbd);
raw3270_request_free(tp->kreset);
raw3270_request_free(tp->read);
@@ -889,7 +882,8 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
INIT_LIST_HEAD(&tp->update);
INIT_LIST_HEAD(&tp->rcl_lines);
tp->rcl_max = 20;
- init_timer(&tp->timer);
+ setup_timer(&tp->timer, (void (*)(unsigned long)) tty3270_update,
+ (unsigned long) tp);
tasklet_init(&tp->readlet,
(void (*)(unsigned long)) tty3270_read_tasklet,
(unsigned long) tp->read);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-13 09:43:22 +0000