/*
 * Copyright (c) 2007-2017 Allwinnertech Co., Ltd.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * 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.
 *
 */

#include "pm_i.h"

/*for io-measure time*/
#define PORT_E_CONFIG (0xf1c20890)
#define PORT_E_DATA (0xf1c208a0)
#define PORT_CONFIG PORT_E_CONFIG
#define PORT_DATA PORT_E_DATA

/*
 * notice: dependant with perf counter to delay.
 */
void io_init(void)
{
	/*config port output */
	*(volatile unsigned int *)(PORT_CONFIG) = 0x111111;

	return;
}

void io_init_high(void)
{
	__u32 data;

	/*set port to high */
	data = *(volatile unsigned int *)(PORT_DATA);
	data |= 0x3f;
	*(volatile unsigned int *)(PORT_DATA) = data;

	return;
}

void io_init_low(void)
{
	__u32 data;

	data = *(volatile unsigned int *)(PORT_DATA);
	/*set port to low */
	data &= 0xffffffc0;
	*(volatile unsigned int *)(PORT_DATA) = data;

	return;
}

/*
 * set pa port to high, num range is 0-7;
 */
void io_high(int num)
{
	__u32 data;
	data = *(volatile unsigned int *)(PORT_DATA);
	/*pull low 10ms */
	data &= (~(1 << num));
	*(volatile unsigned int *)(PORT_DATA) = data;
#if defined(CONFIG_ARCH_SUN8IW11P1)
	delay_us(10000);
#else
	mdelay(10);
#endif
	/*pull high */
	data |= (1 << num);
	*(volatile unsigned int *)(PORT_DATA) = data;

	return;
}