diff options
Diffstat (limited to 'drivers/input/of_keymap.c')
-rw-r--r-- | drivers/input/of_keymap.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/drivers/input/of_keymap.c b/drivers/input/of_keymap.c deleted file mode 100644 index 061493d57682..000000000000 --- a/drivers/input/of_keymap.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * Helpers for open firmware matrix keyboard bindings - * - * Copyright (C) 2012 Google, Inc - * - * Author: - * Olof Johansson <olof@lixom.net> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/input.h> -#include <linux/of.h> -#include <linux/input/matrix_keypad.h> -#include <linux/export.h> -#include <linux/gfp.h> -#include <linux/slab.h> - -struct matrix_keymap_data * -matrix_keyboard_of_fill_keymap(struct device_node *np, - const char *propname) -{ - struct matrix_keymap_data *kd; - u32 *keymap; - int proplen, i; - const __be32 *prop; - - if (!np) - return NULL; - - if (!propname) - propname = "linux,keymap"; - - prop = of_get_property(np, propname, &proplen); - if (!prop) - return NULL; - - if (proplen % sizeof(u32)) { - pr_warn("Malformed keymap property %s in %s\n", - propname, np->full_name); - return NULL; - } - - kd = kzalloc(sizeof(*kd), GFP_KERNEL); - if (!kd) - return NULL; - - kd->keymap = keymap = kzalloc(proplen, GFP_KERNEL); - if (!kd->keymap) { - kfree(kd); - return NULL; - } - - kd->keymap_size = proplen / sizeof(u32); - - for (i = 0; i < kd->keymap_size; i++) { - u32 tmp = be32_to_cpup(prop + i); - int key_code, row, col; - - row = (tmp >> 24) & 0xff; - col = (tmp >> 16) & 0xff; - key_code = tmp & 0xffff; - keymap[i] = KEY(row, col, key_code); - } - - return kd; -} -EXPORT_SYMBOL_GPL(matrix_keyboard_of_fill_keymap); - -void matrix_keyboard_of_free_keymap(const struct matrix_keymap_data *kd) -{ - if (kd) { - kfree(kd->keymap); - kfree(kd); - } -} -EXPORT_SYMBOL_GPL(matrix_keyboard_of_free_keymap); |