diff options
author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-12-16 12:17:48 -0500 |
---|---|---|
committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-12-16 12:17:48 -0500 |
commit | 67b989a0c17e34a7c2c095e58a2f3d1b4408e3cb (patch) | |
tree | c076d2f0b5d4ae8726a50206042d3e3a41620fe4 /drivers/input/input.c | |
parent | 56a8bd6dcf81693e61a712097216904f3a4ab536 (diff) | |
parent | 69479f8da68f1930b2078b2ebf6533fb00339918 (diff) |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt into next
Conflicts:
drivers/input/Makefile
Diffstat (limited to 'drivers/input/input.c')
-rw-r--r-- | drivers/input/input.c | 48 |
1 files changed, 1 insertions, 47 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c index c7a1e826c580..3312e20016bf 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c | |||
@@ -14,7 +14,7 @@ | |||
14 | 14 | ||
15 | #include <linux/init.h> | 15 | #include <linux/init.h> |
16 | #include <linux/types.h> | 16 | #include <linux/types.h> |
17 | #include <linux/input.h> | 17 | #include <linux/input/mt.h> |
18 | #include <linux/module.h> | 18 | #include <linux/module.h> |
19 | #include <linux/slab.h> | 19 | #include <linux/slab.h> |
20 | #include <linux/random.h> | 20 | #include <linux/random.h> |
@@ -1726,52 +1726,6 @@ void input_free_device(struct input_dev *dev) | |||
1726 | EXPORT_SYMBOL(input_free_device); | 1726 | EXPORT_SYMBOL(input_free_device); |
1727 | 1727 | ||
1728 | /** | 1728 | /** |
1729 | * input_mt_create_slots() - create MT input slots | ||
1730 | * @dev: input device supporting MT events and finger tracking | ||
1731 | * @num_slots: number of slots used by the device | ||
1732 | * | ||
1733 | * This function allocates all necessary memory for MT slot handling in the | ||
1734 | * input device, and adds ABS_MT_SLOT to the device capabilities. All slots | ||
1735 | * are initially marked as unused by setting ABS_MT_TRACKING_ID to -1. | ||
1736 | */ | ||
1737 | int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots) | ||
1738 | { | ||
1739 | int i; | ||
1740 | |||
1741 | if (!num_slots) | ||
1742 | return 0; | ||
1743 | |||
1744 | dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL); | ||
1745 | if (!dev->mt) | ||
1746 | return -ENOMEM; | ||
1747 | |||
1748 | dev->mtsize = num_slots; | ||
1749 | input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0); | ||
1750 | |||
1751 | /* Mark slots as 'unused' */ | ||
1752 | for (i = 0; i < num_slots; i++) | ||
1753 | dev->mt[i].abs[ABS_MT_TRACKING_ID - ABS_MT_FIRST] = -1; | ||
1754 | |||
1755 | return 0; | ||
1756 | } | ||
1757 | EXPORT_SYMBOL(input_mt_create_slots); | ||
1758 | |||
1759 | /** | ||
1760 | * input_mt_destroy_slots() - frees the MT slots of the input device | ||
1761 | * @dev: input device with allocated MT slots | ||
1762 | * | ||
1763 | * This function is only needed in error path as the input core will | ||
1764 | * automatically free the MT slots when the device is destroyed. | ||
1765 | */ | ||
1766 | void input_mt_destroy_slots(struct input_dev *dev) | ||
1767 | { | ||
1768 | kfree(dev->mt); | ||
1769 | dev->mt = NULL; | ||
1770 | dev->mtsize = 0; | ||
1771 | } | ||
1772 | EXPORT_SYMBOL(input_mt_destroy_slots); | ||
1773 | |||
1774 | /** | ||
1775 | * input_set_capability - mark device as capable of a certain event | 1729 | * input_set_capability - mark device as capable of a certain event |
1776 | * @dev: device that is capable of emitting or accepting event | 1730 | * @dev: device that is capable of emitting or accepting event |
1777 | * @type: type of the event (EV_KEY, EV_REL, etc...) | 1731 | * @type: type of the event (EV_KEY, EV_REL, etc...) |