diff options
Diffstat (limited to 'include/linux/platform_data/keypad-omap.h')
| -rw-r--r-- | include/linux/platform_data/keypad-omap.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/platform_data/keypad-omap.h b/include/linux/platform_data/keypad-omap.h new file mode 100644 index 000000000000..a6b21eddb212 --- /dev/null +++ b/include/linux/platform_data/keypad-omap.h @@ -0,0 +1,52 @@ +/* + * arch/arm/plat-omap/include/mach/keypad.h + * + * Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef ASMARM_ARCH_KEYPAD_H +#define ASMARM_ARCH_KEYPAD_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 + |