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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2012-05-10 22:37:08 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-05-10 22:38:47 -0700
commit1932811f426fee71b7ece67e70aeba7e1b0ebb6d (patch)
treeffc4598961733707a89e711b4614c8cc14446ad5 /include/linux/input
parentd0a3457d38adbad37e43ffe6b763360b2bfe71d9 (diff)
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Input: matrix-keymap - uninline and prepare for device tree support
Change matrix-keymap helper to be out-of-line, like sparse keymap, allow the helper perform basic keymap validation and return errors, and prepare for device tree support. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include/linux/input')
-rw-r--r--include/linux/input/matrix_keypad.h38
1 files changed, 6 insertions, 32 deletions
diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h
index 6c07ced0af81..e8fe08ebc245 100644
--- a/include/linux/input/matrix_keypad.h
+++ b/include/linux/input/matrix_keypad.h
@@ -75,39 +75,13 @@ struct matrix_keypad_platform_data {
bool no_autorepeat;
};
-/**
- * matrix_keypad_build_keymap - convert platform keymap into matrix keymap
- * @keymap_data: keymap supplied by the platform code
- * @row_shift: number of bits to shift row value by to advance to the next
- * line in the keymap
- * @keymap: expanded version of keymap that is suitable for use by
- * matrix keyboad driver
- * @keybit: pointer to bitmap of keys supported by input device
- *
- * This function converts platform keymap (encoded with KEY() macro) into
- * an array of keycodes that is suitable for using in a standard matrix
- * keyboard driver that uses row and col as indices.
- */
-static inline void
-matrix_keypad_build_keymap(const struct matrix_keymap_data *keymap_data,
- unsigned int row_shift,
- unsigned short *keymap, unsigned long *keybit)
-{
- int i;
-
- for (i = 0; i < keymap_data->keymap_size; i++) {
- unsigned int key = keymap_data->keymap[i];
- unsigned int row = KEY_ROW(key);
- unsigned int col = KEY_COL(key);
- unsigned short code = KEY_VAL(key);
-
- keymap[MATRIX_SCAN_CODE(row, col, row_shift)] = code;
- __set_bit(code, keybit);
- }
- __clear_bit(KEY_RESERVED, keybit);
-}
+int matrix_keypad_build_keymap(const struct matrix_keymap_data *keymap_data,
+ const char *keymap_name,
+ unsigned int rows, unsigned int cols,
+ unsigned short *keymap,
+ struct input_dev *input_dev);
-#ifdef CONFIG_INPUT_OF_MATRIX_KEYMAP
+#ifdef CONFIG_OF
struct matrix_keymap_data *
matrix_keyboard_of_fill_keymap(struct device_node *np, const char *propname);