#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <linux/kobject.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500.h>
#include <linux/slab.h>
#include <linux/mfd/abx500/ab8500-bm.h>
#include <linux/delay.h>
#include <linux/mfd/abx500/ab8500-gpadc.h>
#include <linux/time.h>
#include <linux/completion.h>

Data Structures
struct	ab8500_fg_interrupts

struct	ab8500_fg_avg_cap

struct	ab8500_fg_battery_capacity

struct	ab8500_fg_flags

struct	inst_curr_result_list

struct	ab8500_fg

struct	ab8500_fg_sysfs_entry

Macros
#define	MILLI_TO_MICRO 1000

#define	FG_LSB_IN_MA 1627

#define	QLSB_NANO_AMP_HOURS_X10 1129

#define	INS_CURR_TIMEOUT (3 * HZ)

#define	SEC_TO_SAMPLE(S) (S * 4)

#define	NBR_AVG_SAMPLES 20

#define	LOW_BAT_CHECK_INTERVAL (2 * HZ)

#define	VALID_CAPACITY_SEC (45 * 60) /* 45 minutes */

#define	BATT_OK_MIN 2360 /* mV */

#define	BATT_OK_INCREMENT 50 /* mV */

#define	BATT_OK_MAX_NR_INCREMENTS 0xE

#define	BATT_OVV 0x01

#define	interpolate(x, x1, y1, x2, y2) ((y1) + ((((y2) - (y1)) * ((x) - (x1))) / ((x2) - (x1))));

#define	to_ab8500_fg_device_info(x)

: name of the interrupt
struct ab8500_fg_interrupts - ab8500 fg interupts function pointer to the isr
#define	ab8500_fg_suspend NULL

#define	ab8500_fg_resume NULL

enum	ab8500_fg_discharge_state { AB8500_FG_DISCHARGE_INIT, AB8500_FG_DISCHARGE_INITMEASURING, AB8500_FG_DISCHARGE_INIT_RECOVERY, AB8500_FG_DISCHARGE_RECOVERY, AB8500_FG_DISCHARGE_READOUT_INIT, AB8500_FG_DISCHARGE_READOUT, AB8500_FG_DISCHARGE_WAKEUP }

enum	ab8500_fg_charge_state { AB8500_FG_CHARGE_INIT, AB8500_FG_CHARGE_READOUT }

enum	ab8500_fg_calibration_state { AB8500_FG_CALIB_INIT, AB8500_FG_CALIB_WAIT, AB8500_FG_CALIB_END }

struct ab8500_fg *	ab8500_fg_get (void)

int	ab8500_fg_inst_curr_start (struct ab8500_fg *di)

int	ab8500_fg_inst_curr_done (struct ab8500_fg *di)

int	ab8500_fg_inst_curr_finalize (struct ab8500_fg di, int res)

int	ab8500_fg_inst_curr_blocking (struct ab8500_fg *di)

void	ab8500_fg_reinit (void)

	subsys_initcall_sync (ab8500_fg_init)

	module_exit (ab8500_fg_exit)

	MODULE_LICENSE ("GPL v2")

	MODULE_AUTHOR ("Johan Palsson, Karl Komierowski")

	MODULE_ALIAS ("platform:ab8500-fg")

	MODULE_DESCRIPTION ("AB8500 Fuel Gauge driver")

Macro Definition Documentation

#define ab8500_fg_resume NULL

Definition at line 2411 of file ab8500_fg.c.

#define ab8500_fg_suspend NULL

Definition at line 2410 of file ab8500_fg.c.

#define BATT_OK_INCREMENT 50 /* mV */

Definition at line 48 of file ab8500_fg.c.

#define BATT_OK_MAX_NR_INCREMENTS 0xE

Definition at line 49 of file ab8500_fg.c.

#define BATT_OK_MIN 2360 /* mV */

Definition at line 47 of file ab8500_fg.c.

#define BATT_OVV 0x01

Definition at line 52 of file ab8500_fg.c.

#define FG_LSB_IN_MA 1627

Definition at line 36 of file ab8500_fg.c.

#define INS_CURR_TIMEOUT (3 * HZ)

Definition at line 38 of file ab8500_fg.c.

#define interpolate	(	x,
		x1,
		y1,
		x2,
		y2
	)	((y1) + ((((y2) - (y1)) * ((x) - (x1))) / ((x2) - (x1))));

Definition at line 54 of file ab8500_fg.c.

#define LOW_BAT_CHECK_INTERVAL (2 * HZ)

Definition at line 44 of file ab8500_fg.c.

#define MILLI_TO_MICRO 1000

Definition at line 35 of file ab8500_fg.c.

#define NBR_AVG_SAMPLES 20

Definition at line 42 of file ab8500_fg.c.

#define QLSB_NANO_AMP_HOURS_X10 1129

Definition at line 37 of file ab8500_fg.c.

#define SEC_TO_SAMPLE ( S ) (S * 4)

Definition at line 40 of file ab8500_fg.c.

#define to_ab8500_fg_device_info ( x )

Value:

container_of((x), \

struct ab8500_fg, fg_psy);

Definition at line 57 of file ab8500_fg.c.

#define VALID_CAPACITY_SEC (45 * 60) /* 45 minutes */

Definition at line 46 of file ab8500_fg.c.

Enumeration Type Documentation

enum ab8500_fg_calibration_state

Enumerator:

AB8500_FG_CALIB_INIT
AB8500_FG_CALIB_WAIT
AB8500_FG_CALIB_END

Definition at line 100 of file ab8500_fg.c.

enum ab8500_fg_charge_state

Enumerator:

AB8500_FG_CHARGE_INIT
AB8500_FG_CHARGE_READOUT

Definition at line 90 of file ab8500_fg.c.

enum ab8500_fg_discharge_state

Enumerator:

AB8500_FG_DISCHARGE_INIT
AB8500_FG_DISCHARGE_INITMEASURING
AB8500_FG_DISCHARGE_INIT_RECOVERY
AB8500_FG_DISCHARGE_RECOVERY
AB8500_FG_DISCHARGE_READOUT_INIT
AB8500_FG_DISCHARGE_READOUT
AB8500_FG_DISCHARGE_WAKEUP

Definition at line 70 of file ab8500_fg.c.

Function Documentation

struct ab8500_fg* ab8500_fg_get ( void )

read

ab8500_fg_get() - returns a reference to the primary AB8500 fuel gauge (i.e. the first fuel gauge in the instance list)

Definition at line 234 of file ab8500_fg.c.

int ab8500_fg_inst_curr_blocking ( struct ab8500_fg * di )

ab8500_fg_inst_curr_blocking() - battery instantaneous current : pointer to the ab8500_fg structure : battery instantenous current(on success)

Returns 0 else error code

Definition at line 684 of file ab8500_fg.c.

int ab8500_fg_inst_curr_done ( struct ab8500_fg * di )

ab8500_fg_inst_curr_done() - check if fg conversion is done : pointer to the ab8500_fg structure

Returns 1 if conversion done, 0 if still waiting

Definition at line 577 of file ab8500_fg.c.

int ab8500_fg_inst_curr_finalize	(	struct ab8500_fg *	di,
		int *	res
	)

ab8500_fg_inst_curr_finalize() - battery instantaneous current : pointer to the ab8500_fg structure : battery instantenous current(on success)

Returns 0 or an error code Note: This is part "two" and has to be called at earliest 250 ms after ab8500_fg_inst_curr_start()

Definition at line 591 of file ab8500_fg.c.

int ab8500_fg_inst_curr_start ( struct ab8500_fg * di )

ab8500_fg_inst_curr_start() - start battery instantaneous current : pointer to the ab8500_fg structure

Returns 0 or error code Note: This is part "one" and has to be called before ab8500_fg_inst_curr_finalize()

Definition at line 527 of file ab8500_fg.c.

void ab8500_fg_reinit ( void )

ab8500_fg_reinit() - forces FG algorithm to reinitialize with current values

This function can be used to force the FG algorithm to recalculate a new voltage based battery capacity.

Definition at line 2229 of file ab8500_fg.c.

MODULE_ALIAS ( "platform:ab8500-fg" )

MODULE_AUTHOR	(	"Johan	Palsson,
		Karl Komierowski"
	)

MODULE_DESCRIPTION ( "AB8500 Fuel Gauge driver" )

module_exit ( ab8500_fg_exit )

MODULE_LICENSE ( "GPL v2" )

subsys_initcall_sync ( ab8500_fg_init )

Data Structures

Macros

: name of the interrupt

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation