Switch sparse keymap library to use new style of getkeycode and
setkeycode methods to allow retrieving and setting keycodes not
only by their scancodes but also by index.
Signed-off-by: Dmitry Torokhov <d...@mail.ru>
---
drivers/input/sparse-keymap.c | 81 +++++++++++++++++++++++++++++++++--------
1 files changed, 65 insertions(+), 16 deletions(-)
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index 0142483..a29a7812 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -22,6 +22,37 @@ MODULE_DESCRIPTION("Generic support for sparse keymaps");
MODULE_LICENSE("GPL v2");
MODULE_VERSION("0.1");
+static unsigned int sparse_keymap_get_key_index(struct input_dev *dev,
+ const struct key_entry *k)
+{
+ struct key_entry *key;
+ unsigned int idx = 0;
+
+ for (key = dev->keycode; key->type != KE_END; key++) {
+ if (key->type == KE_KEY) {
+ if (key == k)
+ break;
+ idx++;
+ }
+ }
+
+ return idx;
+}
+
+static struct key_entry *sparse_keymap_entry_by_index(struct input_dev *dev,
+ unsigned int index)
+{
+ struct key_entry *key;
+ unsigned int key_cnt = 0;
+
+ for (key = dev->keycode; key->type != KE_END; key++)
+ if (key->type == KE_KEY)
+ if (key_cnt++ == index)
+ return key;
+
+ return NULL;
+}
+
/**
* sparse_keymap_entry_from_scancode - perform sparse keymap lookup
* @dev: Input device using sparse keymap
@@ -64,16 +95,36 @@ struct key_entry *sparse_keymap_entry_from_keycode(struct
input_dev *dev,
}
EXPORT_SYMBOL(sparse_keymap_entry_from_keycode);
+static struct key_entry *sparse_keymap_locate(struct input_dev *dev,
+ const struct input_keymap_entry *ke)
+{
+ struct key_entry *key;
+ unsigned int scancode;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX)
+ key = sparse_keymap_entry_by_index(dev, ke->index);
+ else if (input_scancode_to_scalar(ke, &scancode) == 0)
+ key = sparse_keymap_entry_from_scancode(dev, scancode);
+ else
+ key = NULL;
+
+ return key;
+}
+
static int sparse_keymap_getkeycode(struct input_dev *dev,
- unsigned int scancode,
- unsigned int *keycode)
+ struct input_keymap_entry *ke)
{
const struct key_entry *key;
if (dev->keycode) {
- key = sparse_keymap_entry_from_scancode(dev, scancode);
+ key = sparse_keymap_locate(dev, ke);
if (key && key->type == KE_KEY) {
- *keycode = key->keycode;
+ ke->keycode = key->keycode;
+ if (!(ke->flags & INPUT_KEYMAP_BY_INDEX))
+ ke->index =
+ sparse_keymap_get_key_index(dev, key);
+ ke->len = sizeof(key->code);
+ memcpy(ke->scancode, &key->code, sizeof(key->code));
return 0;
}
}
@@ -82,20 +133,19 @@ static int sparse_keymap_getkeycode(struct input_dev *dev,
}
static int sparse_keymap_setkeycode(struct input_dev *dev,
- unsigned int scancode,
- unsigned int keycode)
+ const struct input_keymap_entry *ke,
+ unsigned int *old_keycode)
{
struct key_entry *key;
- int old_keycode;
if (dev->keycode) {
- key = sparse_keymap_entry_from_scancode(dev, scancode);
+ key = sparse_keymap_locate(dev, ke);
if (key && key->type == KE_KEY) {
- old_keycode = key->keycode;
- key->keycode = keycode;
- set_bit(keycode, dev->keybit);
- if (!sparse_keymap_entry_from_keycode(dev, old_keycode))
- clear_bit(old_keycode, dev->keybit);
+ *old_keycode = key->keycode;
+ key->keycode = ke->keycode;
+ set_bit(ke->keycode, dev->keybit);
+ if (!sparse_keymap_entry_from_keycode(dev,
*old_keycode))
+ clear_bit(*old_keycode, dev->keybit);
return 0;
}
}
@@ -159,15 +209,14 @@ int sparse_keymap_setup(struct input_dev *dev,
dev->keycode = map;
dev->keycodemax = map_size;
- dev->getkeycode = sparse_keymap_getkeycode;
- dev->setkeycode = sparse_keymap_setkeycode;
+ dev->getkeycode_new = sparse_keymap_getkeycode;
+ dev->setkeycode_new = sparse_keymap_setkeycode;
return 0;
err_out:
kfree(map);
return error;
-
}
EXPORT_SYMBOL(sparse_keymap_setup);
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