summaryrefslogtreecommitdiffstats
path: root/drivers/s390
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/con3215.c85
-rw-r--r--drivers/s390/char/con3270.c1
-rw-r--r--drivers/s390/char/raw3270.c78
-rw-r--r--drivers/s390/char/raw3270.h1
4 files changed, 15 insertions, 150 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index d8acabbb1ed3..1354c42d95aa 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -289,16 +289,14 @@ static void raw3215_timeout(struct timer_list *t)
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
raw->flags &= ~RAW3215_TIMER_RUNS;
- if (!tty_port_suspended(&raw->port)) {
- raw3215_mk_write_req(raw);
- raw3215_start_io(raw);
- if ((raw->queued_read || raw->queued_write) &&
- !(raw->flags & RAW3215_WORKING) &&
- !(raw->flags & RAW3215_TIMER_RUNS)) {
- raw->timer.expires = RAW3215_TIMEOUT + jiffies;
- add_timer(&raw->timer);
- raw->flags |= RAW3215_TIMER_RUNS;
- }
+ raw3215_mk_write_req(raw);
+ raw3215_start_io(raw);
+ if ((raw->queued_read || raw->queued_write) &&
+ !(raw->flags & RAW3215_WORKING) &&
+ !(raw->flags & RAW3215_TIMER_RUNS)) {
+ raw->timer.expires = RAW3215_TIMEOUT + jiffies;
+ add_timer(&raw->timer);
+ raw->flags |= RAW3215_TIMER_RUNS;
}
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
}
@@ -311,7 +309,7 @@ static void raw3215_timeout(struct timer_list *t)
*/
static inline void raw3215_try_io(struct raw3215_info *raw)
{
- if (!tty_port_initialized(&raw->port) || tty_port_suspended(&raw->port))
+ if (!tty_port_initialized(&raw->port))
return;
if (raw->queued_read != NULL)
raw3215_start_io(raw);
@@ -464,26 +462,6 @@ put_tty:
}
/*
- * Drop the oldest line from the output buffer.
- */
-static void raw3215_drop_line(struct raw3215_info *raw)
-{
- int ix;
- char ch;
-
- BUG_ON(raw->written != 0);
- ix = (raw->head - raw->count) & (RAW3215_BUFFER_SIZE - 1);
- while (raw->count > 0) {
- ch = raw->buffer[ix];
- ix = (ix + 1) & (RAW3215_BUFFER_SIZE - 1);
- raw->count--;
- if (ch == 0x15)
- break;
- }
- raw->head = ix;
-}
-
-/*
* Wait until length bytes are available int the output buffer.
* Has to be called with the s390irq lock held. Can be called
* disabled.
@@ -491,13 +469,6 @@ static void raw3215_drop_line(struct raw3215_info *raw)
static void raw3215_make_room(struct raw3215_info *raw, unsigned int length)
{
while (RAW3215_BUFFER_SIZE - raw->count < length) {
- /* While console is frozen for suspend we have no other
- * choice but to drop message from the buffer to make
- * room for even more messages. */
- if (tty_port_suspended(&raw->port)) {
- raw3215_drop_line(raw);
- continue;
- }
/* there might be a request pending */
raw->flags |= RAW3215_FLUSHING;
raw3215_mk_write_req(raw);
@@ -763,36 +734,6 @@ static int raw3215_set_offline (struct ccw_device *cdev)
return 0;
}
-static int raw3215_pm_stop(struct ccw_device *cdev)
-{
- struct raw3215_info *raw;
- unsigned long flags;
-
- /* Empty the output buffer, then prevent new I/O. */
- raw = dev_get_drvdata(&cdev->dev);
- spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
- raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
- tty_port_set_suspended(&raw->port, 1);
- spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
- return 0;
-}
-
-static int raw3215_pm_start(struct ccw_device *cdev)
-{
- struct raw3215_info *raw;
- unsigned long flags;
-
- /* Allow I/O again and flush output buffer. */
- raw = dev_get_drvdata(&cdev->dev);
- spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
- tty_port_set_suspended(&raw->port, 0);
- raw->flags |= RAW3215_FLUSHING;
- raw3215_try_io(raw);
- raw->flags &= ~RAW3215_FLUSHING;
- spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
- return 0;
-}
-
static struct ccw_device_id raw3215_id[] = {
{ CCW_DEVICE(0x3215, 0) },
{ /* end of list */ },
@@ -808,9 +749,6 @@ static struct ccw_driver raw3215_ccw_driver = {
.remove = &raw3215_remove,
.set_online = &raw3215_set_online,
.set_offline = &raw3215_set_offline,
- .freeze = &raw3215_pm_stop,
- .thaw = &raw3215_pm_start,
- .restore = &raw3215_pm_start,
.int_class = IRQIO_C15,
};
@@ -858,11 +796,6 @@ static void con3215_flush(void)
unsigned long flags;
raw = raw3215[0]; /* console 3215 is the first one */
- if (tty_port_suspended(&raw->port))
- /* The console is still frozen for suspend. */
- if (ccw_device_force_console(raw->cdev))
- /* Forcing didn't work, no panic message .. */
- return;
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index e17364e13d2f..e21962c0fd94 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -544,7 +544,6 @@ con3270_flush(void)
cp = condev;
if (!cp->view.dev)
return;
- raw3270_pm_unfreeze(&cp->view);
raw3270_activate_view(&cp->view);
spin_lock_irqsave(&cp->view.lock, flags);
con3270_wait_write(cp);
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 63a41b168761..646ec796bb83 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -67,7 +67,6 @@ struct raw3270 {
#define RAW3270_FLAGS_14BITADDR 0 /* 14-bit buffer addresses */
#define RAW3270_FLAGS_BUSY 1 /* Device busy, leave it alone */
#define RAW3270_FLAGS_CONSOLE 2 /* Device is the console. */
-#define RAW3270_FLAGS_FROZEN 3 /* set if 3270 is frozen for suspend */
/* Semaphore to protect global data of raw3270 (devices, views, etc). */
static DEFINE_MUTEX(raw3270_mutex);
@@ -260,8 +259,7 @@ raw3270_view_active(struct raw3270_view *view)
{
struct raw3270 *rp = view->dev;
- return rp && rp->view == view &&
- !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
+ return rp && rp->view == view;
}
int
@@ -273,8 +271,7 @@ raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)
spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
rp = view->dev;
- if (!rp || rp->view != view ||
- test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
+ if (!rp || rp->view != view)
rc = -EACCES;
else if (!raw3270_state_ready(rp))
rc = -EBUSY;
@@ -291,8 +288,7 @@ raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)
int rc;
rp = view->dev;
- if (!rp || rp->view != view ||
- test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
+ if (!rp || rp->view != view)
rc = -EACCES;
else if (!raw3270_state_ready(rp))
rc = -EBUSY;
@@ -629,8 +625,7 @@ raw3270_reset(struct raw3270_view *view)
int rc;
rp = view->dev;
- if (!rp || rp->view != view ||
- test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
+ if (!rp || rp->view != view)
rc = -EACCES;
else if (!raw3270_state_ready(rp))
rc = -EBUSY;
@@ -854,8 +849,6 @@ raw3270_activate_view(struct raw3270_view *view)
rc = 0;
else if (!raw3270_state_ready(rp))
rc = -EBUSY;
- else if (test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
- rc = -EACCES;
else {
oldview = NULL;
if (rp->view && rp->view->fn->deactivate) {
@@ -903,8 +896,7 @@ raw3270_deactivate_view(struct raw3270_view *view)
list_del_init(&view->list);
list_add_tail(&view->list, &rp->view_list);
/* Try to activate another view. */
- if (raw3270_state_ready(rp) &&
- !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
+ if (raw3270_state_ready(rp)) {
list_for_each_entry(view, &rp->view_list, list) {
rp->view = view;
if (view->fn->activate(view) == 0)
@@ -999,8 +991,7 @@ raw3270_del_view(struct raw3270_view *view)
rp->view = NULL;
}
list_del_init(&view->list);
- if (!rp->view && raw3270_state_ready(rp) &&
- !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
+ if (!rp->view && raw3270_state_ready(rp)) {
/* Try to activate another view. */
list_for_each_entry(nv, &rp->view_list, list) {
if (nv->fn->activate(nv) == 0) {
@@ -1215,60 +1206,6 @@ raw3270_set_offline (struct ccw_device *cdev)
return 0;
}
-static int raw3270_pm_stop(struct ccw_device *cdev)
-{
- struct raw3270 *rp;
- struct raw3270_view *view;
- unsigned long flags;
-
- rp = dev_get_drvdata(&cdev->dev);
- if (!rp)
- return 0;
- spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- if (rp->view && rp->view->fn->deactivate)
- rp->view->fn->deactivate(rp->view);
- if (!test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) {
- /*
- * Release tty and fullscreen for all non-console
- * devices.
- */
- list_for_each_entry(view, &rp->view_list, list) {
- if (view->fn->release)
- view->fn->release(view);
- }
- }
- set_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
- spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
- return 0;
-}
-
-static int raw3270_pm_start(struct ccw_device *cdev)
-{
- struct raw3270 *rp;
- unsigned long flags;
-
- rp = dev_get_drvdata(&cdev->dev);
- if (!rp)
- return 0;
- spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- clear_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
- if (rp->view && rp->view->fn->activate)
- rp->view->fn->activate(rp->view);
- spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
- return 0;
-}
-
-void raw3270_pm_unfreeze(struct raw3270_view *view)
-{
-#ifdef CONFIG_TN3270_CONSOLE
- struct raw3270 *rp;
-
- rp = view->dev;
- if (rp && test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
- ccw_device_force_console(rp->cdev);
-#endif
-}
-
static struct ccw_device_id raw3270_id[] = {
{ CCW_DEVICE(0x3270, 0) },
{ CCW_DEVICE(0x3271, 0) },
@@ -1294,9 +1231,6 @@ static struct ccw_driver raw3270_ccw_driver = {
.remove = &raw3270_remove,
.set_online = &raw3270_set_online,
.set_offline = &raw3270_set_offline,
- .freeze = &raw3270_pm_stop,
- .thaw = &raw3270_pm_start,
- .restore = &raw3270_pm_start,
.int_class = IRQIO_C70,
};
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index 8d979e0ee605..c6645167cd2b 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -199,7 +199,6 @@ struct raw3270_notifier {
int raw3270_register_notifier(struct raw3270_notifier *);
void raw3270_unregister_notifier(struct raw3270_notifier *);
-void raw3270_pm_unfreeze(struct raw3270_view *);
/*
* Little memory allocator for string objects.
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 15:53:22 +0000