| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com> |
| */ |
| #ifndef __KEYPAD_OMAP_H |
| #define __KEYPAD_OMAP_H |
| |
| #ifndef CONFIG_ARCH_OMAP1 |
| #warning Please update the board to use matrix-keypad driver |
| #define omap_readw(reg) 0 |
| #define omap_writew(val, reg) do {} while (0) |
| #endif |
| #include <linux/input/matrix_keypad.h> |
| |
| struct omap_kp_platform_data { |
| int rows; |
| int cols; |
| const struct matrix_keymap_data *keymap_data; |
| bool rep; |
| unsigned long delay; |
| bool dbounce; |
| /* specific to OMAP242x*/ |
| unsigned int *row_gpios; |
| unsigned int *col_gpios; |
| }; |
| |
| /* Group (0..3) -- when multiple keys are pressed, only the |
| * keys pressed in the same group are considered as pressed. This is |
| * in order to workaround certain crappy HW designs that produce ghost |
| * keypresses. Two free bits, not used by neither row/col nor keynum, |
| * must be available for use as group bits. The below GROUP_SHIFT |
| * macro definition is based on some prior knowledge of the |
| * matrix_keypad defined KEY() macro internals. |
| */ |
| #define GROUP_SHIFT 14 |
| #define GROUP_0 (0 << GROUP_SHIFT) |
| #define GROUP_1 (1 << GROUP_SHIFT) |
| #define GROUP_2 (2 << GROUP_SHIFT) |
| #define GROUP_3 (3 << GROUP_SHIFT) |
| #define GROUP_MASK GROUP_3 |
| #if KEY_MAX & GROUP_MASK |
| #error Group bits in conflict with keynum bits |
| #endif |
| |
| |
| #endif |
| |
