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authorHenrik Rydberg <rydberg@euromail.se>2010-11-27 09:16:48 +0100
committerHenrik Rydberg <rydberg@euromail.se>2010-12-16 10:39:57 +0100
commit47c78e891323513e9909729b44033e2c6649e2b7 (patch)
tree828e0da90418a890653ef2f0af3cf81714fe5c80 /drivers/input/input.c
parentc8ddb2713c624f432fa5fe3c7ecffcdda46ea0d4 (diff)
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input: mt: Break out slots handling
In preparation for common code to handle a larger set of MT slots devices, move the slots handling over to a separate file. Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to 'drivers/input/input.c')
-rw-r--r--drivers/input/input.c48
1 files changed, 1 insertions, 47 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c
index d092ef9..37708d1 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -12,7 +12,7 @@
#include <linux/init.h>
#include <linux/types.h>
-#include <linux/input.h>
+#include <linux/input/mt.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/random.h>
@@ -1691,52 +1691,6 @@ void input_free_device(struct input_dev *dev)
EXPORT_SYMBOL(input_free_device);
/**
- * input_mt_create_slots() - create MT input slots
- * @dev: input device supporting MT events and finger tracking
- * @num_slots: number of slots used by the device
- *
- * This function allocates all necessary memory for MT slot handling in the
- * input device, and adds ABS_MT_SLOT to the device capabilities. All slots
- * are initially marked as unused by setting ABS_MT_TRACKING_ID to -1.
- */
-int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots)
-{
- int i;
-
- if (!num_slots)
- return 0;
-
- dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL);
- if (!dev->mt)
- return -ENOMEM;
-
- dev->mtsize = num_slots;
- input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0);
-
- /* Mark slots as 'unused' */
- for (i = 0; i < num_slots; i++)
- dev->mt[i].abs[ABS_MT_TRACKING_ID - ABS_MT_FIRST] = -1;
-
- return 0;
-}
-EXPORT_SYMBOL(input_mt_create_slots);
-
-/**
- * input_mt_destroy_slots() - frees the MT slots of the input device
- * @dev: input device with allocated MT slots
- *
- * This function is only needed in error path as the input core will
- * automatically free the MT slots when the device is destroyed.
- */
-void input_mt_destroy_slots(struct input_dev *dev)
-{
- kfree(dev->mt);
- dev->mt = NULL;
- dev->mtsize = 0;
-}
-EXPORT_SYMBOL(input_mt_destroy_slots);
-
-/**
* input_set_capability - mark device as capable of a certain event
* @dev: device that is capable of emitting or accepting event
* @type: type of the event (EV_KEY, EV_REL, etc...)