diff options
| author | Sachin Nikam <snikam@nvidia.com> | 2010-12-17 18:58:13 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:41:52 -0800 |
| commit | e24c6418b127782ba976c1985f4a107eac7fcbf4 (patch) | |
| tree | 34e57f99ee06b4dd9913a0b6f9e9049e26413400 /include/linux/gpio_scrollwheel.h | |
| parent | 0e5eec3307ce47cb03f9405b1c227b400611b24b (diff) | |
[ARM] tegra: gpio based scrollwheel driver
Reports Scroll keys:
- Press
- Scrollup
- Scrolldown
Original-Change-Id: I47f6ca3d7b5bed4aa7441634850881df7066fce7
Reviewed-on: http://git-master/r/13618
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Rebase-Id: R7c42f5468e8a89fb4881abd7ef7d314740f99144
Diffstat (limited to 'include/linux/gpio_scrollwheel.h')
| -rw-r--r-- | include/linux/gpio_scrollwheel.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/linux/gpio_scrollwheel.h b/include/linux/gpio_scrollwheel.h new file mode 100644 index 000000000000..33d17a0199ea --- /dev/null +++ b/include/linux/gpio_scrollwheel.h @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2010, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef _GPIO_SCROLLWHEEL_H +#define _GPIO_SCROLLWHEEL_H + +#define GPIO_SCROLLWHEEL_PIN_ONOFF 0 +#define GPIO_SCROLLWHEEL_PIN_PRESS 1 +#define GPIO_SCROLLWHEEL_PIN_ROT1 2 +#define GPIO_SCROLLWHEEL_PIN_ROT2 3 +#define GPIO_SCROLLWHEEL_PIN_MAX 4 + +struct gpio_scrollwheel_button { + /* Configuration parameters */ + int pinaction; /* GPIO_SCROLLWHEEL_PIN_* */ + int gpio; + char *desc; + int active_low; + int debounce_interval; /* debounce ticks interval in msecs */ +}; + +struct gpio_scrollwheel_platform_data { + struct gpio_scrollwheel_button *buttons; + int nbuttons; + unsigned int rep:1; /* enable input subsystem auto repeat */ + int (*enable)(struct device *dev); + void (*disable)(struct device *dev); +}; + +#endif + |