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authorDmitry Torokhov <dtor@insightbb.com>2006-07-06 00:22:43 -0400
committerDmitry Torokhov <dtor@insightbb.com>2006-07-06 00:22:43 -0400
commit0e739d28762e78c746cad8edd33223550a1c6a3f (patch)
tree6fa695c3076b737b7b1848d81d75095400821e31 /drivers/input
parentc7e8dc6ee6d59bf72f5478fa6355a27750e6c7d2 (diff)
Input: introduce input_inject_event() function
Create input_inject_event() function which is to be used by input handlers as opposed to input_event() which is reserved for drivers implementing input devices. The difference is that if device is "grabbed" by some process input_inject_event() will ignore events unless sent from the handle that is currently owns the device. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/evdev.c6
-rw-r--r--drivers/input/input.c27
2 files changed, 30 insertions, 3 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 2426a5d8537..4bf48188cc9 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -256,7 +256,7 @@ static ssize_t evdev_write(struct file * file, const char __user * buffer, size_
if (evdev_event_from_user(buffer + retval, &event))
return -EFAULT;
- input_event(list->evdev->handle.dev, event.type, event.code, event.value);
+ input_inject_event(&list->evdev->handle, event.type, event.code, event.value);
retval += evdev_event_size();
}
@@ -424,8 +424,8 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
if (get_user(v, ip + 1))
return -EFAULT;
- input_event(dev, EV_REP, REP_DELAY, u);
- input_event(dev, EV_REP, REP_PERIOD, v);
+ input_inject_event(&evdev->handle, EV_REP, REP_DELAY, u);
+ input_inject_event(&evdev->handle, EV_REP, REP_PERIOD, v);
return 0;
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 7aeebb9071c..e2091394292 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -35,6 +35,16 @@ static LIST_HEAD(input_handler_list);
static struct input_handler *input_table[8];
+/**
+ * input_event() - report new input event
+ * @handle: device that generated the event
+ * @type: type of the event
+ * @code: event code
+ * @value: value of the event
+ *
+ * This function should be used by drivers implementing various input devices
+ * See also input_inject_event()
+ */
void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct input_handle *handle;
@@ -183,6 +193,23 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in
}
EXPORT_SYMBOL(input_event);
+/**
+ * input_inject_event() - send input event from input handler
+ * @handle: input handle to send event through
+ * @type: type of the event
+ * @code: event code
+ * @value: value of the event
+ *
+ * Similar to input_event() but will ignore event if device is "grabbed" and handle
+ * injecting event is not the one that owns the device.
+ */
+void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
+{
+ if (!handle->dev->grab || handle->dev->grab == handle)
+ input_event(handle->dev, type, code, value);
+}
+EXPORT_SYMBOL(input_inject_event);
+
static void input_repeat_key(unsigned long data)
{
struct input_dev *dev = (void *) data;