root/include/linux/mfd/max8925.h

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/*
 * Maxim8925 Interface
 *
 * Copyright (C) 2009 Marvell International Ltd.
 *      Haojian Zhuang <haojian.zhuang@marvell.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __LINUX_MFD_MAX8925_H
#define __LINUX_MFD_MAX8925_H

#include <linux/mutex.h>
#include <linux/interrupt.h>

/* Unified sub device IDs for MAX8925 */
enum {
        MAX8925_ID_SD1,
        MAX8925_ID_SD2,
        MAX8925_ID_SD3,
        MAX8925_ID_LDO1,
        MAX8925_ID_LDO2,
        MAX8925_ID_LDO3,
        MAX8925_ID_LDO4,
        MAX8925_ID_LDO5,
        MAX8925_ID_LDO6,
        MAX8925_ID_LDO7,
        MAX8925_ID_LDO8,
        MAX8925_ID_LDO9,
        MAX8925_ID_LDO10,
        MAX8925_ID_LDO11,
        MAX8925_ID_LDO12,
        MAX8925_ID_LDO13,
        MAX8925_ID_LDO14,
        MAX8925_ID_LDO15,
        MAX8925_ID_LDO16,
        MAX8925_ID_LDO17,
        MAX8925_ID_LDO18,
        MAX8925_ID_LDO19,
        MAX8925_ID_LDO20,
        MAX8925_ID_MAX,
};

enum {
        /*
         * Charging current threshold trigger going from fast charge
         * to TOPOFF charge. From 5% to 20% of fasting charging current.
         */
        MAX8925_TOPOFF_THR_5PER,
        MAX8925_TOPOFF_THR_10PER,
        MAX8925_TOPOFF_THR_15PER,
        MAX8925_TOPOFF_THR_20PER,
};

enum {
        /* Fast charging current */
        MAX8925_FCHG_85MA,
        MAX8925_FCHG_300MA,
        MAX8925_FCHG_460MA,
        MAX8925_FCHG_600MA,
        MAX8925_FCHG_700MA,
        MAX8925_FCHG_800MA,
        MAX8925_FCHG_900MA,
        MAX8925_FCHG_1000MA,
};

/* Charger registers */
#define MAX8925_CHG_IRQ1                (0x7e)
#define MAX8925_CHG_IRQ2                (0x7f)
#define MAX8925_CHG_IRQ1_MASK           (0x80)
#define MAX8925_CHG_IRQ2_MASK           (0x81)
#define MAX8925_CHG_STATUS              (0x82)

/* GPM registers */
#define MAX8925_SYSENSEL                (0x00)
#define MAX8925_ON_OFF_IRQ1             (0x01)
#define MAX8925_ON_OFF_IRQ1_MASK        (0x02)
#define MAX8925_ON_OFF_STATUS           (0x03)
#define MAX8925_ON_OFF_IRQ2             (0x0d)
#define MAX8925_ON_OFF_IRQ2_MASK        (0x0e)
#define MAX8925_RESET_CNFG              (0x0f)

/* Touch registers */
#define MAX8925_TSC_IRQ                 (0x00)
#define MAX8925_TSC_IRQ_MASK            (0x01)
#define MAX8925_TSC_CNFG1               (0x02)
#define MAX8925_ADC_SCHED               (0x10)
#define MAX8925_ADC_RES_END             (0x6f)

#define MAX8925_NREF_OK                 (1 << 4)

/* RTC registers */
#define MAX8925_ALARM0_CNTL             (0x18)
#define MAX8925_ALARM1_CNTL             (0x19)
#define MAX8925_RTC_IRQ                 (0x1c)
#define MAX8925_RTC_IRQ_MASK            (0x1d)
#define MAX8925_MPL_CNTL                (0x1e)

/* WLED registers */
#define MAX8925_WLED_MODE_CNTL          (0x84)
#define MAX8925_WLED_CNTL               (0x85)

/* MAX8925 Registers */
#define MAX8925_SDCTL1                  (0x04)
#define MAX8925_SDCTL2                  (0x07)
#define MAX8925_SDCTL3                  (0x0A)
#define MAX8925_SDV1                    (0x06)
#define MAX8925_SDV2                    (0x09)
#define MAX8925_SDV3                    (0x0C)
#define MAX8925_LDOCTL1                 (0x18)
#define MAX8925_LDOCTL2                 (0x1C)
#define MAX8925_LDOCTL3                 (0x20)
#define MAX8925_LDOCTL4                 (0x24)
#define MAX8925_LDOCTL5                 (0x28)
#define MAX8925_LDOCTL6                 (0x2C)
#define MAX8925_LDOCTL7                 (0x30)
#define MAX8925_LDOCTL8                 (0x34)
#define MAX8925_LDOCTL9                 (0x38)
#define MAX8925_LDOCTL10                (0x3C)
#define MAX8925_LDOCTL11                (0x40)
#define MAX8925_LDOCTL12                (0x44)
#define MAX8925_LDOCTL13                (0x48)
#define MAX8925_LDOCTL14                (0x4C)
#define MAX8925_LDOCTL15                (0x50)
#define MAX8925_LDOCTL16                (0x10)
#define MAX8925_LDOCTL17                (0x14)
#define MAX8925_LDOCTL18                (0x72)
#define MAX8925_LDOCTL19                (0x5C)
#define MAX8925_LDOCTL20                (0x9C)
#define MAX8925_LDOVOUT1                (0x1A)
#define MAX8925_LDOVOUT2                (0x1E)
#define MAX8925_LDOVOUT3                (0x22)
#define MAX8925_LDOVOUT4                (0x26)
#define MAX8925_LDOVOUT5                (0x2A)
#define MAX8925_LDOVOUT6                (0x2E)
#define MAX8925_LDOVOUT7                (0x32)
#define MAX8925_LDOVOUT8                (0x36)
#define MAX8925_LDOVOUT9                (0x3A)
#define MAX8925_LDOVOUT10               (0x3E)
#define MAX8925_LDOVOUT11               (0x42)
#define MAX8925_LDOVOUT12               (0x46)
#define MAX8925_LDOVOUT13               (0x4A)
#define MAX8925_LDOVOUT14               (0x4E)
#define MAX8925_LDOVOUT15               (0x52)
#define MAX8925_LDOVOUT16               (0x12)
#define MAX8925_LDOVOUT17               (0x16)
#define MAX8925_LDOVOUT18               (0x74)
#define MAX8925_LDOVOUT19               (0x5E)
#define MAX8925_LDOVOUT20               (0x9E)

/* bit definitions */
#define CHG_IRQ1_MASK                   (0x07)
#define CHG_IRQ2_MASK                   (0xff)
#define ON_OFF_IRQ1_MASK                (0xff)
#define ON_OFF_IRQ2_MASK                (0x03)
#define TSC_IRQ_MASK                    (0x03)
#define RTC_IRQ_MASK                    (0x0c)

#define MAX8925_NAME_SIZE               (32)

/* IRQ definitions */
enum {
        MAX8925_IRQ_VCHG_DC_OVP,
        MAX8925_IRQ_VCHG_DC_F,
        MAX8925_IRQ_VCHG_DC_R,
        MAX8925_IRQ_VCHG_THM_OK_R,
        MAX8925_IRQ_VCHG_THM_OK_F,
        MAX8925_IRQ_VCHG_SYSLOW_F,
        MAX8925_IRQ_VCHG_SYSLOW_R,
        MAX8925_IRQ_VCHG_RST,
        MAX8925_IRQ_VCHG_DONE,
        MAX8925_IRQ_VCHG_TOPOFF,
        MAX8925_IRQ_VCHG_TMR_FAULT,
        MAX8925_IRQ_GPM_RSTIN,
        MAX8925_IRQ_GPM_MPL,
        MAX8925_IRQ_GPM_SW_3SEC,
        MAX8925_IRQ_GPM_EXTON_F,
        MAX8925_IRQ_GPM_EXTON_R,
        MAX8925_IRQ_GPM_SW_1SEC,
        MAX8925_IRQ_GPM_SW_F,
        MAX8925_IRQ_GPM_SW_R,
        MAX8925_IRQ_GPM_SYSCKEN_F,
        MAX8925_IRQ_GPM_SYSCKEN_R,
        MAX8925_IRQ_RTC_ALARM1,
        MAX8925_IRQ_RTC_ALARM0,
        MAX8925_IRQ_TSC_STICK,
        MAX8925_IRQ_TSC_NSTICK,
        MAX8925_NR_IRQS,
};



struct max8925_chip {
        struct device           *dev;
        struct i2c_client       *i2c;
        struct i2c_client       *adc;
        struct i2c_client       *rtc;
        struct mutex            io_lock;
        struct mutex            irq_lock;

        int                     irq_base;
        int                     core_irq;
        int                     tsc_irq;
        unsigned int            wakeup_flag;
};

struct max8925_backlight_pdata {
        int     lxw_scl;        /* 0/1 -- 0.8Ohm/0.4Ohm */
        int     lxw_freq;       /* 700KHz ~ 1400KHz */
        int     dual_string;    /* 0/1 -- single/dual string */
};

struct max8925_touch_pdata {
        unsigned int            flags;
};

struct max8925_power_pdata {
        int             (*set_charger)(int);
        unsigned        batt_detect:1;
        unsigned        topoff_threshold:2;
        unsigned        fast_charge:3;  /* charge current */
        unsigned        no_temp_support:1; /* set if no temperature detect */
        unsigned        no_insert_detect:1; /* set if no ac insert detect */
        char            **supplied_to;
        int             num_supplicants;
};

/*
 * irq_base: stores IRQ base number of MAX8925 in platform
 * tsc_irq: stores IRQ number of MAX8925 TSC
 */
struct max8925_platform_data {
        struct max8925_backlight_pdata  *backlight;
        struct max8925_touch_pdata      *touch;
        struct max8925_power_pdata      *power;
        struct regulator_init_data      *sd1;
        struct regulator_init_data      *sd2;
        struct regulator_init_data      *sd3;
        struct regulator_init_data      *ldo1;
        struct regulator_init_data      *ldo2;
        struct regulator_init_data      *ldo3;
        struct regulator_init_data      *ldo4;
        struct regulator_init_data      *ldo5;
        struct regulator_init_data      *ldo6;
        struct regulator_init_data      *ldo7;
        struct regulator_init_data      *ldo8;
        struct regulator_init_data      *ldo9;
        struct regulator_init_data      *ldo10;
        struct regulator_init_data      *ldo11;
        struct regulator_init_data      *ldo12;
        struct regulator_init_data      *ldo13;
        struct regulator_init_data      *ldo14;
        struct regulator_init_data      *ldo15;
        struct regulator_init_data      *ldo16;
        struct regulator_init_data      *ldo17;
        struct regulator_init_data      *ldo18;
        struct regulator_init_data      *ldo19;
        struct regulator_init_data      *ldo20;

        int             irq_base;
        int             tsc_irq;
};

extern int max8925_reg_read(struct i2c_client *, int);
extern int max8925_reg_write(struct i2c_client *, int, unsigned char);
extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *);
extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
                        unsigned char);

extern int max8925_device_init(struct max8925_chip *,
                                struct max8925_platform_data *);
extern void max8925_device_exit(struct max8925_chip *);
#endif /* __LINUX_MFD_MAX8925_H */
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