/*
 * core.h  -- Core driver for NXP PCF50633
 *
 * (C) 2006-2008 by Openmoko, Inc.
 * All rights reserved.
 *
 * 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.
 */

#ifndef __LINUX_MFD_PCF50633_CORE_H
#define __LINUX_MFD_PCF50633_CORE_H

#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/power_supply.h>
#include <linux/mfd/pcf50633/backlight.h>

struct pcf50633;
struct regmap;

#define PCF50633_NUM_REGULATORS 11

struct pcf50633_platform_data {
        struct regulator_init_data reg_init_data[PCF50633_NUM_REGULATORS];

        char **batteries;
        int num_batteries;

        /*
         * Should be set accordingly to the reference resistor used, see
         * I_{ch(ref)} charger reference current in the pcf50633 User
         * Manual.
         */
        int charger_reference_current_ma;

        /* Callbacks */
        void (*probe_done)(struct pcf50633 *);
        void (*mbc_event_callback)(struct pcf50633 *, int);
        void (*regulator_registered)(struct pcf50633 *, int);
        void (*force_shutdown)(struct pcf50633 *);

        u8 resumers[5];

        struct pcf50633_bl_platform_data *backlight_data;
};

struct pcf50633_irq {
        void (*handler) (int, void *);
        void *data;
};

int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
                        void (*handler) (int, void *), void *data);
int pcf50633_free_irq(struct pcf50633 *pcf, int irq);

int pcf50633_irq_mask(struct pcf50633 *pcf, int irq);
int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq);
int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq);

int pcf50633_read_block(struct pcf50633 *, u8 reg,
                                        int nr_regs, u8 *data);
int pcf50633_write_block(struct pcf50633 *pcf, u8 reg,
                                        int nr_regs, u8 *data);
u8 pcf50633_reg_read(struct pcf50633 *, u8 reg);
int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val);

int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val);
int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 bits);

/* Interrupt registers */

#define PCF50633_REG_INT1       0x02
#define PCF50633_REG_INT2       0x03
#define PCF50633_REG_INT3       0x04
#define PCF50633_REG_INT4       0x05
#define PCF50633_REG_INT5       0x06

#define PCF50633_REG_INT1M      0x07
#define PCF50633_REG_INT2M      0x08
#define PCF50633_REG_INT3M      0x09
#define PCF50633_REG_INT4M      0x0a
#define PCF50633_REG_INT5M      0x0b

enum {
        /* Chip IRQs */
        PCF50633_IRQ_ADPINS,
        PCF50633_IRQ_ADPREM,
        PCF50633_IRQ_USBINS,
        PCF50633_IRQ_USBREM,
        PCF50633_IRQ_RESERVED1,
        PCF50633_IRQ_RESERVED2,
        PCF50633_IRQ_ALARM,
        PCF50633_IRQ_SECOND,
        PCF50633_IRQ_ONKEYR,
        PCF50633_IRQ_ONKEYF,
        PCF50633_IRQ_EXTON1R,
        PCF50633_IRQ_EXTON1F,
        PCF50633_IRQ_EXTON2R,
        PCF50633_IRQ_EXTON2F,
        PCF50633_IRQ_EXTON3R,
        PCF50633_IRQ_EXTON3F,
        PCF50633_IRQ_BATFULL,
        PCF50633_IRQ_CHGHALT,
        PCF50633_IRQ_THLIMON,
        PCF50633_IRQ_THLIMOFF,
        PCF50633_IRQ_USBLIMON,
        PCF50633_IRQ_USBLIMOFF,
        PCF50633_IRQ_ADCRDY,
        PCF50633_IRQ_ONKEY1S,
        PCF50633_IRQ_LOWSYS,
        PCF50633_IRQ_LOWBAT,
        PCF50633_IRQ_HIGHTMP,
        PCF50633_IRQ_AUTOPWRFAIL,
        PCF50633_IRQ_DWN1PWRFAIL,
        PCF50633_IRQ_DWN2PWRFAIL,
        PCF50633_IRQ_LEDPWRFAIL,
        PCF50633_IRQ_LEDOVP,
        PCF50633_IRQ_LDO1PWRFAIL,
        PCF50633_IRQ_LDO2PWRFAIL,
        PCF50633_IRQ_LDO3PWRFAIL,
        PCF50633_IRQ_LDO4PWRFAIL,
        PCF50633_IRQ_LDO5PWRFAIL,
        PCF50633_IRQ_LDO6PWRFAIL,
        PCF50633_IRQ_HCLDOPWRFAIL,
        PCF50633_IRQ_HCLDOOVL,

        /* Always last */
        PCF50633_NUM_IRQ,
};

struct pcf50633 {
        struct device *dev;
        struct regmap *regmap;

        struct pcf50633_platform_data *pdata;
        int irq;
        struct pcf50633_irq irq_handler[PCF50633_NUM_IRQ];
        struct work_struct irq_work;
        struct workqueue_struct *work_queue;
        struct mutex lock;

        u8 mask_regs[5];

        u8 suspend_irq_masks[5];
        u8 resume_reason[5];
        int is_suspended;

        int onkey1s_held;

        struct platform_device *rtc_pdev;
        struct platform_device *mbc_pdev;
        struct platform_device *adc_pdev;
        struct platform_device *input_pdev;
        struct platform_device *bl_pdev;
        struct platform_device *regulator_pdev[PCF50633_NUM_REGULATORS];
};

enum pcf50633_reg_int1 {
        PCF50633_INT1_ADPINS    = 0x01, /* Adapter inserted */
        PCF50633_INT1_ADPREM    = 0x02, /* Adapter removed */
        PCF50633_INT1_USBINS    = 0x04, /* USB inserted */
        PCF50633_INT1_USBREM    = 0x08, /* USB removed */
        /* reserved */
        PCF50633_INT1_ALARM     = 0x40, /* RTC alarm time is reached */
        PCF50633_INT1_SECOND    = 0x80, /* RTC periodic second interrupt */
};

enum pcf50633_reg_int2 {
        PCF50633_INT2_ONKEYR    = 0x01, /* ONKEY rising edge */
        PCF50633_INT2_ONKEYF    = 0x02, /* ONKEY falling edge */
        PCF50633_INT2_EXTON1R   = 0x04, /* EXTON1 rising edge */
        PCF50633_INT2_EXTON1F   = 0x08, /* EXTON1 falling edge */
        PCF50633_INT2_EXTON2R   = 0x10, /* EXTON2 rising edge */
        PCF50633_INT2_EXTON2F   = 0x20, /* EXTON2 falling edge */
        PCF50633_INT2_EXTON3R   = 0x40, /* EXTON3 rising edge */
        PCF50633_INT2_EXTON3F   = 0x80, /* EXTON3 falling edge */
};

enum pcf50633_reg_int3 {
        PCF50633_INT3_BATFULL   = 0x01, /* Battery full */
        PCF50633_INT3_CHGHALT   = 0x02, /* Charger halt */
        PCF50633_INT3_THLIMON   = 0x04,
        PCF50633_INT3_THLIMOFF  = 0x08,
        PCF50633_INT3_USBLIMON  = 0x10,
        PCF50633_INT3_USBLIMOFF = 0x20,
        PCF50633_INT3_ADCRDY    = 0x40, /* ADC result ready */
        PCF50633_INT3_ONKEY1S   = 0x80, /* ONKEY pressed 1 second */
};

enum pcf50633_reg_int4 {
        PCF50633_INT4_LOWSYS            = 0x01,
        PCF50633_INT4_LOWBAT            = 0x02,
        PCF50633_INT4_HIGHTMP           = 0x04,
        PCF50633_INT4_AUTOPWRFAIL       = 0x08,
        PCF50633_INT4_DWN1PWRFAIL       = 0x10,
        PCF50633_INT4_DWN2PWRFAIL       = 0x20,
        PCF50633_INT4_LEDPWRFAIL        = 0x40,
        PCF50633_INT4_LEDOVP            = 0x80,
};

enum pcf50633_reg_int5 {
        PCF50633_INT5_LDO1PWRFAIL       = 0x01,
        PCF50633_INT5_LDO2PWRFAIL       = 0x02,
        PCF50633_INT5_LDO3PWRFAIL       = 0x04,
        PCF50633_INT5_LDO4PWRFAIL       = 0x08,
        PCF50633_INT5_LDO5PWRFAIL       = 0x10,
        PCF50633_INT5_LDO6PWRFAIL       = 0x20,
        PCF50633_INT5_HCLDOPWRFAIL      = 0x40,
        PCF50633_INT5_HCLDOOVL          = 0x80,
};

/* misc. registers */
#define PCF50633_REG_OOCSHDWN   0x0c

/* LED registers */
#define PCF50633_REG_LEDOUT 0x28
#define PCF50633_REG_LEDENA 0x29
#define PCF50633_REG_LEDCTL 0x2a
#define PCF50633_REG_LEDDIM 0x2b

static inline struct pcf50633 *dev_to_pcf50633(struct device *dev)
{
        return dev_get_drvdata(dev);
}

int pcf50633_irq_init(struct pcf50633 *pcf, int irq);
void pcf50633_irq_free(struct pcf50633 *pcf);
#ifdef CONFIG_PM
int pcf50633_irq_suspend(struct pcf50633 *pcf);
int pcf50633_irq_resume(struct pcf50633 *pcf);
#endif

#endif