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linux/include/linux/mfd/abx500.h

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/*
* Copyright (C) 2007-2009 ST-Ericsson AB
* License terms: GNU General Public License (GPL) version 2
* AB3100 core access functions
* Author: Linus Walleij <linus.walleij@stericsson.com>
*
* ABX500 core access functions.
* The abx500 interface is used for the Analog Baseband chip
* ab3100, ab3550, ab5500 and possibly comming. It is not used for
* ab4500 and ab8500 since they are another family of chip.
*
* Author: Mattias Wallin <mattias.wallin@stericsson.com>
* Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
* Author: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
* Author: Rickard Andersson <rickard.andersson@stericsson.com>
*/
#include <linux/device.h>
#include <linux/regulator/machine.h>
#ifndef MFD_ABX500_H
#define MFD_ABX500_H
#define AB3100_P1A 0xc0
#define AB3100_P1B 0xc1
#define AB3100_P1C 0xc2
#define AB3100_P1D 0xc3
#define AB3100_P1E 0xc4
#define AB3100_P1F 0xc5
#define AB3100_P1G 0xc6
#define AB3100_R2A 0xc7
#define AB3100_R2B 0xc8
#define AB3550_P1A 0x10
#define AB5500_1_0 0x20
#define AB5500_2_0 0x21
#define AB5500_2_1 0x22
/*
* AB3100, EVENTA1, A2 and A3 event register flags
* these are catenated into a single 32-bit flag in the code
* for event notification broadcasts.
*/
#define AB3100_EVENTA1_ONSWA (0x01<<16)
#define AB3100_EVENTA1_ONSWB (0x02<<16)
#define AB3100_EVENTA1_ONSWC (0x04<<16)
#define AB3100_EVENTA1_DCIO (0x08<<16)
#define AB3100_EVENTA1_OVER_TEMP (0x10<<16)
#define AB3100_EVENTA1_SIM_OFF (0x20<<16)
#define AB3100_EVENTA1_VBUS (0x40<<16)
#define AB3100_EVENTA1_VSET_USB (0x80<<16)
#define AB3100_EVENTA2_READY_TX (0x01<<8)
#define AB3100_EVENTA2_READY_RX (0x02<<8)
#define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8)
#define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8)
#define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8)
#define AB3100_EVENTA2_MIDR (0x20<<8)
#define AB3100_EVENTA2_BATTERY_REM (0x40<<8)
#define AB3100_EVENTA2_ALARM (0x80<<8)
#define AB3100_EVENTA3_ADC_TRIG5 (0x01)
#define AB3100_EVENTA3_ADC_TRIG4 (0x02)
#define AB3100_EVENTA3_ADC_TRIG3 (0x04)
#define AB3100_EVENTA3_ADC_TRIG2 (0x08)
#define AB3100_EVENTA3_ADC_TRIGVBAT (0x10)
#define AB3100_EVENTA3_ADC_TRIGVTX (0x20)
#define AB3100_EVENTA3_ADC_TRIG1 (0x40)
#define AB3100_EVENTA3_ADC_TRIG0 (0x80)
/* AB3100, STR register flags */
#define AB3100_STR_ONSWA (0x01)
#define AB3100_STR_ONSWB (0x02)
#define AB3100_STR_ONSWC (0x04)
#define AB3100_STR_DCIO (0x08)
#define AB3100_STR_BOOT_MODE (0x10)
#define AB3100_STR_SIM_OFF (0x20)
#define AB3100_STR_BATT_REMOVAL (0x40)
#define AB3100_STR_VBUS (0x80)
/*
* AB3100 contains 8 regulators, one external regulator controller
* and a buck converter, further the LDO E and buck converter can
* have separate settings if they are in sleep mode, this is
* modeled as a separate regulator.
*/
#define AB3100_NUM_REGULATORS 10
/**
* struct ab3100
* @access_mutex: lock out concurrent accesses to the AB3100 registers
* @dev: pointer to the containing device
* @i2c_client: I2C client for this chip
* @testreg_client: secondary client for test registers
* @chip_name: name of this chip variant
* @chip_id: 8 bit chip ID for this chip variant
* @event_subscribers: event subscribers are listed here
* @startup_events: a copy of the first reading of the event registers
* @startup_events_read: whether the first events have been read
*
* This struct is PRIVATE and devices using it should NOT
* access ANY fields. It is used as a token for calling the
* AB3100 functions.
*/
struct ab3100 {
struct mutex access_mutex;
struct device *dev;
struct i2c_client *i2c_client;
struct i2c_client *testreg_client;
char chip_name[32];
u8 chip_id;
struct blocking_notifier_head event_subscribers;
u8 startup_events[3];
bool startup_events_read;
};
/**
* struct ab3100_platform_data
* Data supplied to initialize board connections to the AB3100
* @reg_constraints: regulator constraints for target board
* the order of these constraints are: LDO A, C, D, E,
* F, G, H, K, EXT and BUCK.
* @reg_initvals: initial values for the regulator registers
* plus two sleep settings for LDO E and the BUCK converter.
* exactly AB3100_NUM_REGULATORS+2 values must be sent in.
* Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK,
* BUCK sleep, LDO D. (LDO D need to be initialized last.)
* @external_voltage: voltage level of the external regulator.
*/
struct ab3100_platform_data {
struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS];
u8 reg_initvals[AB3100_NUM_REGULATORS+2];
int external_voltage;
};
int ab3100_event_register(struct ab3100 *ab3100,
struct notifier_block *nb);
int ab3100_event_unregister(struct ab3100 *ab3100,
struct notifier_block *nb);
/* AB3550, STR register flags */
#define AB3550_STR_ONSWA (0x01)
#define AB3550_STR_ONSWB (0x02)
#define AB3550_STR_ONSWC (0x04)
#define AB3550_STR_DCIO (0x08)
#define AB3550_STR_BOOT_MODE (0x10)
#define AB3550_STR_SIM_OFF (0x20)
#define AB3550_STR_BATT_REMOVAL (0x40)
#define AB3550_STR_VBUS (0x80)
/* Interrupt mask registers */
#define AB3550_IMR1 0x29
#define AB3550_IMR2 0x2a
#define AB3550_IMR3 0x2b
#define AB3550_IMR4 0x2c
#define AB3550_IMR5 0x2d
enum ab3550_devid {
AB3550_DEVID_ADC,
AB3550_DEVID_DAC,
AB3550_DEVID_LEDS,
AB3550_DEVID_POWER,
AB3550_DEVID_REGULATORS,
AB3550_DEVID_SIM,
AB3550_DEVID_UART,
AB3550_DEVID_RTC,
AB3550_DEVID_CHARGER,
AB3550_DEVID_FUELGAUGE,
AB3550_DEVID_VIBRATOR,
AB3550_DEVID_CODEC,
AB3550_NUM_DEVICES,
};
/**
* struct abx500_init_setting
* Initial value of the registers for driver to use during setup.
*/
struct abx500_init_settings {
u8 bank;
u8 reg;
u8 setting;
};
/**
* struct ab3550_platform_data
* Data supplied to initialize board connections to the AB3550
*/
struct ab3550_platform_data {
struct {unsigned int base; unsigned int count; } irq;
void *dev_data[AB3550_NUM_DEVICES];
size_t dev_data_sz[AB3550_NUM_DEVICES];
struct abx500_init_settings *init_settings;
unsigned int init_settings_sz;
};
int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg,
u8 value);
int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg,
u8 *value);
int abx500_get_register_page_interruptible(struct device *dev, u8 bank,
u8 first_reg, u8 *regvals, u8 numregs);
int abx500_set_register_page_interruptible(struct device *dev, u8 bank,
u8 first_reg, u8 *regvals, u8 numregs);
/**
* abx500_mask_and_set_register_inerruptible() - Modifies selected bits of a
* target register
*
* @dev: The AB sub device.
* @bank: The i2c bank number.
* @bitmask: The bit mask to use.
* @bitvalues: The new bit values.
*
* Updates the value of an AB register:
* value -> ((value & ~bitmask) | (bitvalues & bitmask))
*/
int abx500_mask_and_set_register_interruptible(struct device *dev, u8 bank,
u8 reg, u8 bitmask, u8 bitvalues);
int abx500_get_chip_id(struct device *dev);
int abx500_event_registers_startup_state_get(struct device *dev, u8 *event);
int abx500_startup_irq_enabled(struct device *dev, unsigned int irq);
struct abx500_ops {
int (*get_chip_id) (struct device *);
int (*get_register) (struct device *, u8, u8, u8 *);
int (*set_register) (struct device *, u8, u8, u8);
int (*get_register_page) (struct device *, u8, u8, u8 *, u8);
int (*set_register_page) (struct device *, u8, u8, u8 *, u8);
int (*mask_and_set_register) (struct device *, u8, u8, u8, u8);
int (*event_registers_startup_state_get) (struct device *, u8 *);
int (*startup_irq_enabled) (struct device *, unsigned int);
};
int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops);
#endif
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