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/*
* Copyright (C) 2010-2011 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 <mach/clk.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include <mach/pinmux.h>
#include <mach/iomap.h>
#include <mach/io.h>
#include <mach/kbc.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
/*
* Scrollwheel is connected to KBC pins but has it's own
* driver using those pins as gpio.
* In case of using scrollwheel Row3 and Col3/4/5
* should NOT be configured as KBC
*/
#ifdef CONFIG_INPUT_ALPS_GPIO_SCROLLWHEEL
#define WHISTLER_ROW_COUNT 3
#define WHISTLER_COL_COUNT 2
#else
#define WHISTLER_ROW_COUNT 4
#define WHISTLER_COL_COUNT 2
#endif
#ifdef CONFIG_INPUT_ALPS_GPIO_SCROLLWHEEL
static const u32 whistler_keymap[] = {
KEY(0, 0, KEY_POWER),
KEY(0, 1, KEY_RESERVED),
KEY(1, 0, KEY_HOME),
KEY(1, 1, KEY_BACK),
KEY(2, 0, KEY_RESERVED),
KEY(2, 1, KEY_MENU),
};
#else
static const u32 whistler_keymap[] = {
KEY(0, 0, KEY_POWER),
KEY(0, 1, KEY_RESERVED),
KEY(1, 0, KEY_HOME),
KEY(1, 1, KEY_BACK),
KEY(2, 0, KEY_RESERVED),
KEY(2, 1, KEY_MENU),
KEY(3, 0, KEY_RESERVED),
KEY(3, 1, KEY_RESERVED),
};
#endif
static const struct matrix_keymap_data whistler_keymap_data = {
.keymap = whistler_keymap,
.keymap_size = ARRAY_SIZE(whistler_keymap),
};
static struct tegra_kbc_wake_key whistler_wake_cfg[] = {
[0] = {
.row = 0,
.col = 0,
},
};
static struct tegra_kbc_platform_data whistler_kbc_platform_data = {
.debounce_cnt = 20,
.repeat_cnt = 50 * 32,
.wake_cnt = 1,
.wake_cfg = &whistler_wake_cfg[0],
.keymap_data = &whistler_keymap_data,
.use_fn_map = false,
.wakeup = true,
#ifdef CONFIG_ANDROID
.disable_ev_rep = true,
#endif
};
static struct resource whistler_kbc_resources[] = {
[0] = {
.start = TEGRA_KBC_BASE,
.end = TEGRA_KBC_BASE + TEGRA_KBC_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = INT_KBC,
.end = INT_KBC,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device whistler_kbc_device = {
.name = "tegra-kbc",
.id = -1,
.dev = {
.platform_data = &whistler_kbc_platform_data,
},
.resource = whistler_kbc_resources,
.num_resources = ARRAY_SIZE(whistler_kbc_resources),
};
int __init whistler_kbc_init(void)
{
struct tegra_kbc_platform_data *data = &whistler_kbc_platform_data;
int i;
pr_info("KBC: whistler_kbc_init\n");
for (i = 0; i < WHISTLER_ROW_COUNT; i++) {
data->pin_cfg[i].num = i;
data->pin_cfg[i].is_row = true;
data->pin_cfg[i].en = true;
}
for (i = 0; i < WHISTLER_COL_COUNT; i++) {
data->pin_cfg[i + KBC_PIN_GPIO_16].num = i;
data->pin_cfg[i + KBC_PIN_GPIO_16].en = true;
}
platform_device_register(&whistler_kbc_device);
return 0;
}
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