1 /* 2 * arch/arm/plat-omap/include/mach/keypad.h 3 * 4 * Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 #ifndef ASMARM_ARCH_KEYPAD_H 11 #define ASMARM_ARCH_KEYPAD_H 12 13 #ifndef CONFIG_ARCH_OMAP1 14 #warning Please update the board to use matrix-keypad driver 15 #endif 16 #include <linux/input/matrix_keypad.h> 17 18 struct omap_kp_platform_data { 19 int rows; 20 int cols; 21 const struct matrix_keymap_data *keymap_data; 22 bool rep; 23 unsigned long delay; 24 bool dbounce; 25 /* specific to OMAP242x*/ 26 unsigned int *row_gpios; 27 unsigned int *col_gpios; 28 }; 29 30 /* Group (0..3) -- when multiple keys are pressed, only the 31 * keys pressed in the same group are considered as pressed. This is 32 * in order to workaround certain crappy HW designs that produce ghost 33 * keypresses. Two free bits, not used by neither row/col nor keynum, 34 * must be available for use as group bits. The below GROUP_SHIFT 35 * macro definition is based on some prior knowledge of the 36 * matrix_keypad defined KEY() macro internals. 37 */ 38 #define GROUP_SHIFT 14 39 #define GROUP_0 (0 << GROUP_SHIFT) 40 #define GROUP_1 (1 << GROUP_SHIFT) 41 #define GROUP_2 (2 << GROUP_SHIFT) 42 #define GROUP_3 (3 << GROUP_SHIFT) 43 #define GROUP_MASK GROUP_3 44 #if KEY_MAX & GROUP_MASK 45 #error Group bits in conflict with keynum bits 46 #endif 47 48 49 #endif 50 51