/*
 * da9052 declarations for DA9052 PMICs.
 *
 * Copyright(c) 2011 Dialog Semiconductor Ltd.
 *
 * Author: David Dajun Chen <dchen@diasemi.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#ifndef __MFD_DA9052_DA9052_H
#define __MFD_DA9052_DA9052_H

#include <linux/interrupt.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/list.h>
#include <linux/mfd/core.h>

#include <linux/mfd/da9052/reg.h>

/* Common - HWMON Channel Definations */
#define DA9052_ADC_VDDOUT	0
#define DA9052_ADC_ICH		1
#define DA9052_ADC_TBAT	2
#define DA9052_ADC_VBAT	3
#define DA9052_ADC_IN4		4
#define DA9052_ADC_IN5		5
#define DA9052_ADC_IN6		6
#define DA9052_ADC_TSI		7
#define DA9052_ADC_TJUNC	8
#define DA9052_ADC_VBBAT	9

#define DA9052_IRQ_DCIN	0
#define DA9052_IRQ_VBUS	1
#define DA9052_IRQ_DCINREM	2
#define DA9052_IRQ_VBUSREM	3
#define DA9052_IRQ_VDDLOW	4
#define DA9052_IRQ_ALARM	5
#define DA9052_IRQ_SEQRDY	6
#define DA9052_IRQ_COMP1V2	7
#define DA9052_IRQ_NONKEY	8
#define DA9052_IRQ_IDFLOAT	9
#define DA9052_IRQ_IDGND	10
#define DA9052_IRQ_CHGEND	11
#define DA9052_IRQ_TBAT	12
#define DA9052_IRQ_ADC_EOM	13
#define DA9052_IRQ_PENDOWN	14
#define DA9052_IRQ_TSIREADY	15
#define DA9052_IRQ_GPI0	16
#define DA9052_IRQ_GPI1	17
#define DA9052_IRQ_GPI2	18
#define DA9052_IRQ_GPI3	19
#define DA9052_IRQ_GPI4	20
#define DA9052_IRQ_GPI5	21
#define DA9052_IRQ_GPI6	22
#define DA9052_IRQ_GPI7	23
#define DA9052_IRQ_GPI8	24
#define DA9052_IRQ_GPI9	25
#define DA9052_IRQ_GPI10	26
#define DA9052_IRQ_GPI11	27
#define DA9052_IRQ_GPI12	28
#define DA9052_IRQ_GPI13	29
#define DA9052_IRQ_GPI14	30
#define DA9052_IRQ_GPI15	31

enum da9052_chip_id {
	DA9052,
	DA9053_AA,
	DA9053_BA,
	DA9053_BB,
};

struct da9052_pdata;

struct da9052 {
	struct device *dev;
	struct regmap *regmap;

	struct mutex auxadc_lock;
	struct completion done;

	int irq_base;
	struct regmap_irq_chip_data *irq_data;
	u8 chip_id;

	int chip_irq;

	/* SOC I/O transfer related fixes for DA9052/53 */
	int (*fix_io) (struct da9052 *da9052, unsigned char reg);
};

/* ADC API */
int da9052_adc_manual_read(struct da9052 *da9052, unsigned char channel);
int da9052_adc_read_temp(struct da9052 *da9052);

/* Device I/O API */
static inline int da9052_reg_read(struct da9052 *da9052, unsigned char reg)
{
	int val, ret;

	ret = regmap_read(da9052->regmap, reg, &val);
	if (ret < 0)
		return ret;

	if (da9052->fix_io) {
		ret = da9052->fix_io(da9052, reg);
		if (ret < 0)
			return ret;
	}

	return val;
}

static inline int da9052_reg_write(struct da9052 *da9052, unsigned char reg,
				    unsigned char val)
{
	int ret;

	ret = regmap_write(da9052->regmap, reg, val);
	if (ret < 0)
		return ret;

	if (da9052->fix_io) {
		ret = da9052->fix_io(da9052, reg);
		if (ret < 0)
			return ret;
	}

	return ret;
}

static inline int da9052_group_read(struct da9052 *da9052, unsigned char reg,
				     unsigned reg_cnt, unsigned char *val)
{
	int ret;
	unsigned int tmp;
	int i;

	for (i = 0; i < reg_cnt; i++) {
		ret = regmap_read(da9052->regmap, reg + i, &tmp);
		val[i] = (unsigned char)tmp;
		if (ret < 0)
			return ret;
	}

	if (da9052->fix_io) {
		ret = da9052->fix_io(da9052, reg);
		if (ret < 0)
			return ret;
	}

	return ret;
}

static inline int da9052_group_write(struct da9052 *da9052, unsigned char reg,
				      unsigned reg_cnt, unsigned char *val)
{
	int ret;
	int i;

	for (i = 0; i < reg_cnt; i++) {
		ret = regmap_write(da9052->regmap, reg + i, val[i]);
		if (ret < 0)
			return ret;
	}

	if (da9052->fix_io) {
		ret = da9052->fix_io(da9052, reg);
		if (ret < 0)
			return ret;
	}

	return ret;
}

static inline int da9052_reg_update(struct da9052 *da9052, unsigned char reg,
				     unsigned char bit_mask,
				     unsigned char reg_val)
{
	int ret;

	ret = regmap_update_bits(da9052->regmap, reg, bit_mask, reg_val);
	if (ret < 0)
		return ret;

	if (da9052->fix_io) {
		ret = da9052->fix_io(da9052, reg);
		if (ret < 0)
			return ret;
	}

	return ret;
}

int da9052_device_init(struct da9052 *da9052, u8 chip_id);
void da9052_device_exit(struct da9052 *da9052);

extern struct regmap_config da9052_regmap_config;

int da9052_irq_init(struct da9052 *da9052);
int da9052_irq_exit(struct da9052 *da9052);
int da9052_request_irq(struct da9052 *da9052, int irq, char *name,
			   irq_handler_t handler, void *data);
void da9052_free_irq(struct da9052 *da9052, int irq, void *data);

int da9052_enable_irq(struct da9052 *da9052, int irq);
int da9052_disable_irq(struct da9052 *da9052, int irq);
int da9052_disable_irq_nosync(struct da9052 *da9052, int irq);

#endif /* __MFD_DA9052_DA9052_H */
