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-rw-r--r--drivers/input/ff-core.c20
-rw-r--r--drivers/input/ff-memless.c26
-rw-r--r--drivers/input/input.c29
-rw-r--r--drivers/input/keyboard/atkbd.c13
-rw-r--r--drivers/input/mouse/psmouse-base.c2
-rw-r--r--include/linux/input.h4
6 files changed, 58 insertions, 36 deletions
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index 72c63e5dd63..38df81fcdc3 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -337,16 +337,16 @@ int input_ff_create(struct input_dev *dev, int max_effects)
dev->ff = ff;
dev->flush = flush_effects;
dev->event = input_ff_event;
- set_bit(EV_FF, dev->evbit);
+ __set_bit(EV_FF, dev->evbit);
/* Copy "true" bits into ff device bitmap */
for (i = 0; i <= FF_MAX; i++)
if (test_bit(i, dev->ffbit))
- set_bit(i, ff->ffbit);
+ __set_bit(i, ff->ffbit);
/* we can emulate RUMBLE with periodic effects */
if (test_bit(FF_PERIODIC, ff->ffbit))
- set_bit(FF_RUMBLE, dev->ffbit);
+ __set_bit(FF_RUMBLE, dev->ffbit);
return 0;
}
@@ -362,12 +362,14 @@ EXPORT_SYMBOL_GPL(input_ff_create);
*/
void input_ff_destroy(struct input_dev *dev)
{
- clear_bit(EV_FF, dev->evbit);
- if (dev->ff) {
- if (dev->ff->destroy)
- dev->ff->destroy(dev->ff);
- kfree(dev->ff->private);
- kfree(dev->ff);
+ struct ff_device *ff = dev->ff;
+
+ __clear_bit(EV_FF, dev->evbit);
+ if (ff) {
+ if (ff->destroy)
+ ff->destroy(ff);
+ kfree(ff->private);
+ kfree(ff);
dev->ff = NULL;
}
}
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index 2d1415e1683..b483b2995fa 100644
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -61,7 +61,6 @@ struct ml_device {
struct ml_effect_state states[FF_MEMLESS_EFFECTS];
int gain;
struct timer_list timer;
- spinlock_t timer_lock;
struct input_dev *dev;
int (*play_effect)(struct input_dev *dev, void *data,
@@ -368,38 +367,38 @@ static void ml_effect_timer(unsigned long timer_data)
{
struct input_dev *dev = (struct input_dev *)timer_data;
struct ml_device *ml = dev->ff->private;
+ unsigned long flags;
debug("timer: updating effects");
- spin_lock(&ml->timer_lock);
+ spin_lock_irqsave(&dev->event_lock, flags);
ml_play_effects(ml);
- spin_unlock(&ml->timer_lock);
+ spin_unlock_irqrestore(&dev->event_lock, flags);
}
+/*
+ * Sets requested gain for FF effects. Called with dev->event_lock held.
+ */
static void ml_ff_set_gain(struct input_dev *dev, u16 gain)
{
struct ml_device *ml = dev->ff->private;
int i;
- spin_lock_bh(&ml->timer_lock);
-
ml->gain = gain;
for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
__clear_bit(FF_EFFECT_PLAYING, &ml->states[i].flags);
ml_play_effects(ml);
-
- spin_unlock_bh(&ml->timer_lock);
}
+/*
+ * Start/stop specified FF effect. Called with dev->event_lock held.
+ */
static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
{
struct ml_device *ml = dev->ff->private;
struct ml_effect_state *state = &ml->states[effect_id];
- unsigned long flags;
-
- spin_lock_irqsave(&ml->timer_lock, flags);
if (value > 0) {
debug("initiated play");
@@ -425,8 +424,6 @@ static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
ml_play_effects(ml);
}
- spin_unlock_irqrestore(&ml->timer_lock, flags);
-
return 0;
}
@@ -436,7 +433,7 @@ static int ml_ff_upload(struct input_dev *dev,
struct ml_device *ml = dev->ff->private;
struct ml_effect_state *state = &ml->states[effect->id];
- spin_lock_bh(&ml->timer_lock);
+ spin_lock_irq(&dev->event_lock);
if (test_bit(FF_EFFECT_STARTED, &state->flags)) {
__clear_bit(FF_EFFECT_PLAYING, &state->flags);
@@ -448,7 +445,7 @@ static int ml_ff_upload(struct input_dev *dev,
ml_schedule_timer(ml);
}
- spin_unlock_bh(&ml->timer_lock);
+ spin_unlock_irq(&dev->event_lock);
return 0;
}
@@ -482,7 +479,6 @@ int input_ff_create_memless(struct input_dev *dev, void *data,
ml->private = data;
ml->play_effect = play_effect;
ml->gain = 0xffff;
- spin_lock_init(&ml->timer_lock);
setup_timer(&ml->timer, ml_effect_timer, (unsigned long)dev);
set_bit(FF_GAIN, dev->ffbit);
diff --git a/drivers/input/input.c b/drivers/input/input.c
index cc763c96fad..2266ecbfbc0 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1292,17 +1292,24 @@ static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env)
return 0;
}
-#define INPUT_DO_TOGGLE(dev, type, bits, on) \
- do { \
- int i; \
- if (!test_bit(EV_##type, dev->evbit)) \
- break; \
- for (i = 0; i < type##_MAX; i++) { \
- if (!test_bit(i, dev->bits##bit) || \
- !test_bit(i, dev->bits)) \
- continue; \
- dev->event(dev, EV_##type, i, on); \
- } \
+#define INPUT_DO_TOGGLE(dev, type, bits, on) \
+ do { \
+ int i; \
+ bool active; \
+ \
+ if (!test_bit(EV_##type, dev->evbit)) \
+ break; \
+ \
+ for (i = 0; i < type##_MAX; i++) { \
+ if (!test_bit(i, dev->bits##bit)) \
+ continue; \
+ \
+ active = test_bit(i, dev->bits); \
+ if (!active && !on) \
+ continue; \
+ \
+ dev->event(dev, EV_##type, i, on ? active : 0); \
+ } \
} while (0)
#ifdef CONFIG_PM
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 4452eabbee6..28e6110d1ff 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -1174,6 +1174,18 @@ static int atkbd_reconnect(struct serio *serio)
return -1;
atkbd_activate(atkbd);
+
+ /*
+ * Restore LED state and repeat rate. While input core
+ * will do this for us at resume time reconnect may happen
+ * because user requested it via sysfs or simply because
+ * keyboard was unplugged and plugged in again so we need
+ * to do it ourselves here.
+ */
+ atkbd_set_leds(atkbd);
+ if (!atkbd->softrepeat)
+ atkbd_set_repeat_rate(atkbd);
+
}
atkbd_enable(atkbd);
@@ -1422,6 +1434,7 @@ static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
atkbd->dev = new_dev;
atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
+ atkbd_reset_state(atkbd);
atkbd_activate(atkbd);
atkbd_set_keycode_table(atkbd);
atkbd_set_device_attrs(atkbd);
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 690aed90543..5bd64841bf1 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1673,7 +1673,7 @@ static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
{
int type = *((unsigned int *)kp->arg);
- return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name);
+ return sprintf(buffer, "%s", psmouse_protocol_by_type(type)->name);
}
static int __init psmouse_init(void)
diff --git a/include/linux/input.h b/include/linux/input.h
index 0ccfc30cd40..c2b1a7d244d 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -1377,6 +1377,10 @@ extern struct class input_class;
* methods; erase() is optional. set_gain() and set_autocenter() need
* only be implemented if driver sets up FF_GAIN and FF_AUTOCENTER
* bits.
+ *
+ * Note that playback(), set_gain() and set_autocenter() are called with
+ * dev->event_lock spinlock held and interrupts off and thus may not
+ * sleep.
*/
struct ff_device {
int (*upload)(struct input_dev *dev, struct ff_effect *effect,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 03:29:48 +0000