/*
 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of The Linux Foundation nor
 *       the names of its contributors may be used to endorse or promote
 *       products derived from this software without specific prior written
 *       permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <dev/keys.h>
#include <dev/ssbi.h>
#include <dev/gpio_keypad.h>
#include <platform.h>

#define LINUX_MACHTYPE_8660_QT      3298
#define BITS_IN_ELEMENT(x) (sizeof(x)[0] * 8)
#define KEYMAP_INDEX(row, col) (row)* BITS_IN_ELEMENT(qwerty_keys_new) + (col)

static unsigned char qwerty_keys_old[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static unsigned char qwerty_keys_new[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

static unsigned int qt_keymap[] = {
	[KEYMAP_INDEX(0, 3)] = KEY_BACK,	/* Volume down key */
	[KEYMAP_INDEX(1, 3)] = KEY_HOME,	/* Volume up key */
};

static struct qwerty_keypad_info qt_keypad = {
	.keymap = qt_keymap,
	.old_keys = qwerty_keys_old,
	.rec_keys = qwerty_keys_new,
	.rows = 3,
	.columns = 1,
	.num_of_reads = 3,
	.rd_func = &pa1_ssbi2_read_bytes,
	.wr_func = &pa1_ssbi2_write_bytes,
	.settle_time = 32 /* msec */ ,
	.poll_time = 10 /* msec */ ,
};

static unsigned int qwerty_keymap[] = {
	[KEYMAP_INDEX(1, 3)] = KEY_BACK,	/* Volume down key */
	[KEYMAP_INDEX(0, 3)] = KEY_HOME,	/* Volume up key */
};

static struct qwerty_keypad_info qwerty_keypad = {
	.keymap = qwerty_keymap,
	.old_keys = qwerty_keys_old,
	.rec_keys = qwerty_keys_new,
	.rows = 6,
	.columns = 5,
	.num_of_reads = 6,
	.rd_func = &pa1_ssbi2_read_bytes,
	.wr_func = &pa1_ssbi2_write_bytes,
	.settle_time = 5 /* msec */ ,
	.poll_time = 20 /* msec */ ,
};

void keypad_init(void)
{
	unsigned int mach_id;

	mach_id = board_machtype();

	if (mach_id == LINUX_MACHTYPE_8660_QT)
		ssbi_keypad_init(&qt_keypad);
	else
		ssbi_keypad_init(&qwerty_keypad);
}