/*
 * 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
 */

/*
* Warning: Ventana might need some hardware rework to be able to work with
* kbc-driver. Default Ventana h/w configuration should use GPIO keyboard
* driver instead
*/

#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>

#define VENTANA_ROW_COUNT	15
#define VENTANA_COL_COUNT	7

static const u32 ventana_keymap[] = {
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
			KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
	KEY_RESERVED, KEY_HOME, KEY_BACK, KEY_MENU,
			KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_RESERVED,
};



static const struct matrix_keymap_data ventana_keymap_data = {
	.keymap         = ventana_keymap,
	.keymap_size    = ARRAY_SIZE(ventana_keymap),
};

static struct tegra_kbc_wake_key ventana_wake_cfg[] = {
	[0] = {
		.row = 14,
		.col = 1,
	},
};

static struct tegra_kbc_platform_data ventana_kbc_platform_data = {
	.debounce_cnt = 20,
	.repeat_cnt = 50 * 32,
	.wake_cnt = 1,
	.wake_cfg = &ventana_wake_cfg[0],
	.keymap_data = &ventana_keymap_data,
};

static struct resource ventana_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 ventana_kbc_device = {
	.name = "tegra-kbc",
	.id = -1,
	.dev = {
		.platform_data = &ventana_kbc_platform_data,
	},
	.resource = ventana_kbc_resources,
	.num_resources = ARRAY_SIZE(ventana_kbc_resources),
};

int __init ventana_kbc_init(void)
{
	struct tegra_kbc_platform_data *data = &ventana_kbc_platform_data;
	int i;

	pr_info("KBC: ventana_kbc_init\n");

	/* Setup the pin configuration information. */
	for (i = 0; i < KBC_MAX_GPIO; i++) {
		data->pin_cfg[i].num = 0;
		data->pin_cfg[i].is_row = false;
	}
	for (i = 0; i < VENTANA_ROW_COUNT; i++) {
		data->pin_cfg[i].num = i;
		data->pin_cfg[i].is_row = true;
	}

	for (i = 0; i < VENTANA_COL_COUNT; i++) {
		data->pin_cfg[i + VENTANA_ROW_COUNT].num = i;
		data->pin_cfg[i + VENTANA_ROW_COUNT].is_row = false;
	}
	platform_device_register(&ventana_kbc_device);
	return 0;
}