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/*
* arch/arm/mach-tegra/board-kai-kbc.c
* Keys configuration for Nvidia tegra3 kai platform.
*
* Copyright (C) 2012 NVIDIA, Inc.
*
* 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.
*
* 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., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307, USA
*/
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/device.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/mfd/max77663-core.h>
#include <linux/gpio_scrollwheel.h>
#include <mach/irqs.h>
#include <mach/io.h>
#include <mach/iomap.h>
#include <mach/kbc.h>
#include "board.h"
#include "board-kai.h"
#include "gpio-names.h"
#include "devices.h"
#define GPIO_KEY(_id, _gpio, _iswake) \
{ \
.code = _id, \
.gpio = TEGRA_GPIO_##_gpio, \
.active_low = 1, \
.desc = #_id, \
.type = EV_KEY, \
.wakeup = _iswake, \
.debounce_interval = 10, \
}
#define GPIO_IKEY(_id, _irq, _iswake, _deb) \
{ \
.code = _id, \
.gpio = -1, \
.irq = _irq, \
.desc = #_id, \
.type = EV_KEY, \
.wakeup = _iswake, \
.debounce_interval = _deb, \
}
static struct gpio_keys_button kai_keys[] = {
[0] = GPIO_KEY(KEY_MENU, PR2, 0),
[1] = GPIO_KEY(KEY_BACK, PQ1, 0),
[2] = GPIO_KEY(KEY_HOME, PQ0, 0),
[3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
[4] = GPIO_KEY(KEY_VOLUMEUP, PR1, 0),
[5] = GPIO_KEY(KEY_VOLUMEDOWN, PR0, 0),
[6] = GPIO_IKEY(KEY_POWER, MAX77663_IRQ_BASE + MAX77663_IRQ_ONOFF_EN0_FALLING, 0, 100),
[7] = GPIO_IKEY(KEY_POWER, MAX77663_IRQ_BASE + MAX77663_IRQ_ONOFF_EN0_1SEC, 0, 3000),
};
static struct gpio_keys_platform_data kai_keys_platform_data = {
.buttons = kai_keys,
.nbuttons = ARRAY_SIZE(kai_keys),
};
static struct platform_device kai_keys_device = {
.name = "gpio-keys",
.id = 0,
.dev = {
.platform_data = &kai_keys_platform_data,
},
};
int __init kai_keys_init(void)
{
pr_info("Registering gpio keys\n");
platform_device_register(&kai_keys_device);
return 0;
}
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