From 47c78e891323513e9909729b44033e2c6649e2b7 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sat, 27 Nov 2010 09:16:48 +0100 Subject: 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 --- drivers/input/input.c | 48 +----------------------------------------------- 1 file changed, 1 insertion(+), 47 deletions(-) (limited to 'drivers/input/input.c') diff --git a/drivers/input/input.c b/drivers/input/input.c index d092ef9291da..37708d1d86ec 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -12,7 +12,7 @@ #include #include -#include +#include #include #include #include @@ -1690,52 +1690,6 @@ 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 -- cgit v1.2.3-59-g8ed1b