arch/arm/mach-msm/include/mach/gpio-tlmm-v1.h

/*
 * Copyright (C) 2007 Google, Inc.
 * Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved.
 * Author: Mike Lockwood <lockwood@android.com>
 *
 * 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.
 *
 */
#ifndef __ASM_ARCH_MSM_GPIO_TLMM_V1_H
#define __ASM_ARCH_MSM_GPIO_TLMM_V1_H

/* GPIO TLMM (Top Level Multiplexing) Definitions */

/* GPIO TLMM: Function -- GPIO specific */

/* GPIO TLMM: Direction */
enum {
	GPIO_CFG_INPUT,
	GPIO_CFG_OUTPUT,
};

/* GPIO TLMM: Pullup/Pulldown */
enum {
	GPIO_CFG_NO_PULL,
	GPIO_CFG_PULL_DOWN,
	GPIO_CFG_KEEPER,
	GPIO_CFG_PULL_UP,
};

/* GPIO TLMM: Drive Strength */
enum {
	GPIO_CFG_2MA,
	GPIO_CFG_4MA,
	GPIO_CFG_6MA,
	GPIO_CFG_8MA,
	GPIO_CFG_10MA,
	GPIO_CFG_12MA,
	GPIO_CFG_14MA,
	GPIO_CFG_16MA,
};

enum {
	GPIO_CFG_ENABLE,
	GPIO_CFG_DISABLE,
};

#define GPIO_CFG(gpio, func, dir, pull, drvstr) \
	((((gpio) & 0x3FF) << 4)        |	\
	((func) & 0xf)                  |	\
	(((dir) & 0x1) << 14)           |	\
	(((pull) & 0x3) << 15)          |	\
	(((drvstr) & 0xF) << 17))

/**
 * extract GPIO pin from bit-field used for gpio_tlmm_config
 */
#define GPIO_PIN(gpio_cfg)    (((gpio_cfg) >>  4) & 0x3ff)
#define GPIO_FUNC(gpio_cfg)   (((gpio_cfg) >>  0) & 0xf)
#define GPIO_DIR(gpio_cfg)    (((gpio_cfg) >> 14) & 0x1)
#define GPIO_PULL(gpio_cfg)   (((gpio_cfg) >> 15) & 0x3)
#define GPIO_DRVSTR(gpio_cfg) (((gpio_cfg) >> 17) & 0xf)

int gpio_tlmm_config(unsigned config, unsigned disable);

#endif