[net-next-2.6.git] / include / linux / mfd / ab3100.h

/*
 * 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>
 */

#include <linux/device.h>
#include <linux/workqueue.h>
#include <linux/regulator/machine.h>

#ifndef MFD_AB3100_H
#define MFD_AB3100_H

#define ABUNKNOWN	0
#define	AB3000		1
#define	AB3100		2

/*
 * 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
 * @work: an event handling worker
 * @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 work_struct work;
	struct blocking_notifier_head event_subscribers;
	u32 startup_events;
	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_set_register_interruptible(struct ab3100 *ab3100, u8 reg, u8 regval);
int ab3100_get_register_interruptible(struct ab3100 *ab3100, u8 reg, u8 *regval);
int ab3100_get_register_page_interruptible(struct ab3100 *ab3100,
			     u8 first_reg, u8 *regvals, u8 numregs);
int ab3100_mask_and_set_register_interruptible(struct ab3100 *ab3100,
				 u8 reg, u8 andmask, u8 ormask);
u8 ab3100_get_chip_type(struct ab3100 *ab3100);
int ab3100_event_register(struct ab3100 *ab3100,
			  struct notifier_block *nb);
int ab3100_event_unregister(struct ab3100 *ab3100,
			    struct notifier_block *nb);
int ab3100_event_registers_startup_state_get(struct ab3100 *ab3100,
					     u32 *fatevent);

#endif
Commit	Line	Data
14fa5691 LW	1	/*
	2	* Copyright (C) 2007-2009 ST-Ericsson AB
	3	* License terms: GNU General Public License (GPL) version 2
	4	* AB3100 core access functions
	5	* Author: Linus Walleij <linus.walleij@stericsson.com>
	6	*/
	7
	8	#include <linux/device.h>
8aba721b	9	#include <linux/workqueue.h>
d619bc14	10	#include <linux/regulator/machine.h>
14fa5691 LW	11
	12	#ifndef MFD_AB3100_H
	13	#define MFD_AB3100_H
	14
	15	#define ABUNKNOWN 0
	16	#define AB3000 1
	17	#define AB3100 2
	18
	19	/*
	20	* AB3100, EVENTA1, A2 and A3 event register flags
	21	* these are catenated into a single 32-bit flag in the code
	22	* for event notification broadcasts.
	23	*/
	24	#define AB3100_EVENTA1_ONSWA (0x01<<16)
	25	#define AB3100_EVENTA1_ONSWB (0x02<<16)
	26	#define AB3100_EVENTA1_ONSWC (0x04<<16)
	27	#define AB3100_EVENTA1_DCIO (0x08<<16)
	28	#define AB3100_EVENTA1_OVER_TEMP (0x10<<16)
	29	#define AB3100_EVENTA1_SIM_OFF (0x20<<16)
	30	#define AB3100_EVENTA1_VBUS (0x40<<16)
	31	#define AB3100_EVENTA1_VSET_USB (0x80<<16)
	32
	33	#define AB3100_EVENTA2_READY_TX (0x01<<8)
	34	#define AB3100_EVENTA2_READY_RX (0x02<<8)
	35	#define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8)
	36	#define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8)
	37	#define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8)
	38	#define AB3100_EVENTA2_MIDR (0x20<<8)
	39	#define AB3100_EVENTA2_BATTERY_REM (0x40<<8)
	40	#define AB3100_EVENTA2_ALARM (0x80<<8)
	41
	42	#define AB3100_EVENTA3_ADC_TRIG5 (0x01)
	43	#define AB3100_EVENTA3_ADC_TRIG4 (0x02)
	44	#define AB3100_EVENTA3_ADC_TRIG3 (0x04)
	45	#define AB3100_EVENTA3_ADC_TRIG2 (0x08)
	46	#define AB3100_EVENTA3_ADC_TRIGVBAT (0x10)
	47	#define AB3100_EVENTA3_ADC_TRIGVTX (0x20)
	48	#define AB3100_EVENTA3_ADC_TRIG1 (0x40)
	49	#define AB3100_EVENTA3_ADC_TRIG0 (0x80)
	50
	51	/* AB3100, STR register flags */
	52	#define AB3100_STR_ONSWA (0x01)
	53	#define AB3100_STR_ONSWB (0x02)
	54	#define AB3100_STR_ONSWC (0x04)
	55	#define AB3100_STR_DCIO (0x08)
	56	#define AB3100_STR_BOOT_MODE (0x10)
	57	#define AB3100_STR_SIM_OFF (0x20)
	58	#define AB3100_STR_BATT_REMOVAL (0x40)
	59	#define AB3100_STR_VBUS (0x80)
	60
d619bc14 LW	61	/*
	62	* AB3100 contains 8 regulators, one external regulator controller
	63	* and a buck converter, further the LDO E and buck converter can
	64	* have separate settings if they are in sleep mode, this is
	65	* modeled as a separate regulator.
	66	*/
	67	#define AB3100_NUM_REGULATORS 10
	68
14fa5691 LW	69	/**
	70	* struct ab3100
	71	* @access_mutex: lock out concurrent accesses to the AB3100 registers
	72	* @dev: pointer to the containing device
	73	* @i2c_client: I2C client for this chip
	74	* @testreg_client: secondary client for test registers
	75	* @chip_name: name of this chip variant
	76	* @chip_id: 8 bit chip ID for this chip variant
	77	* @work: an event handling worker
	78	* @event_subscribers: event subscribers are listed here
	79	* @startup_events: a copy of the first reading of the event registers
	80	* @startup_events_read: whether the first events have been read
	81	*
	82	* This struct is PRIVATE and devices using it should NOT
	83	* access ANY fields. It is used as a token for calling the
	84	* AB3100 functions.
	85	*/
	86	struct ab3100 {
	87	struct mutex access_mutex;
	88	struct device *dev;
	89	struct i2c_client *i2c_client;
	90	struct i2c_client *testreg_client;
	91	char chip_name[32];
	92	u8 chip_id;
	93	struct work_struct work;
	94	struct blocking_notifier_head event_subscribers;
	95	u32 startup_events;
	96	bool startup_events_read;
	97	};
	98
d619bc14 LW	99	/**
	100	* struct ab3100_platform_data
	101	* Data supplied to initialize board connections to the AB3100
	102	* @reg_constraints: regulator constraints for target board
	103	* the order of these constraints are: LDO A, C, D, E,
	104	* F, G, H, K, EXT and BUCK.
	105	* @reg_initvals: initial values for the regulator registers
	106	* plus two sleep settings for LDO E and the BUCK converter.
	107	* exactly AB3100_NUM_REGULATORS+2 values must be sent in.
	108	* Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK,
	109	* BUCK sleep, LDO D. (LDO D need to be initialized last.)
	110	* @external_voltage: voltage level of the external regulator.
	111	*/
	112	struct ab3100_platform_data {
	113	struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS];
	114	u8 reg_initvals[AB3100_NUM_REGULATORS+2];
	115	int external_voltage;
	116	};
	117
956f25a6 LW	118	int ab3100_set_register_interruptible(struct ab3100 *ab3100, u8 reg, u8 regval);
	119	int ab3100_get_register_interruptible(struct ab3100 ab3100, u8 reg, u8 regval);
	120	int ab3100_get_register_page_interruptible(struct ab3100 *ab3100,
14fa5691	121	u8 first_reg, u8 *regvals, u8 numregs);
956f25a6	122	int ab3100_mask_and_set_register_interruptible(struct ab3100 *ab3100,
14fa5691 LW	123	u8 reg, u8 andmask, u8 ormask);
	124	u8 ab3100_get_chip_type(struct ab3100 *ab3100);
	125	int ab3100_event_register(struct ab3100 *ab3100,
	126	struct notifier_block *nb);
	127	int ab3100_event_unregister(struct ab3100 *ab3100,
	128	struct notifier_block *nb);
	129	int ab3100_event_registers_startup_state_get(struct ab3100 *ab3100,
	130	u32 *fatevent);
	131
	132	#endif