#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/completion.h>
#include <linux/regulator/consumer.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500/ab8500-gpadc.h>

Data Structures
struct	adc_cal_data

struct	ab8500_gpadc

Macros
#define	AB8500_GPADC_CTRL1_REG 0x00

#define	AB8500_GPADC_CTRL2_REG 0x01

#define	AB8500_GPADC_CTRL3_REG 0x02

#define	AB8500_GPADC_AUTO_TIMER_REG 0x03

#define	AB8500_GPADC_STAT_REG 0x04

#define	AB8500_GPADC_MANDATAL_REG 0x05

#define	AB8500_GPADC_MANDATAH_REG 0x06

#define	AB8500_GPADC_AUTODATAL_REG 0x07

#define	AB8500_GPADC_AUTODATAH_REG 0x08

#define	AB8500_GPADC_MUX_CTRL_REG 0x09

#define	AB8500_GPADC_CAL_1 0x0F

#define	AB8500_GPADC_CAL_2 0x10

#define	AB8500_GPADC_CAL_3 0x11

#define	AB8500_GPADC_CAL_4 0x12

#define	AB8500_GPADC_CAL_5 0x13

#define	AB8500_GPADC_CAL_6 0x14

#define	AB8500_GPADC_CAL_7 0x15

#define	EN_VINTCORE12 0x04

#define	EN_VTVOUT 0x02

#define	EN_GPADC 0x01

#define	DIS_GPADC 0x00

#define	SW_AVG_16 0x60

#define	ADC_SW_CONV 0x04

#define	EN_ICHAR 0x80

#define	BTEMP_PULL_UP 0x08

#define	EN_BUF 0x40

#define	DIS_ZERO 0x00

#define	GPADC_BUSY 0x01

#define	ADC_RESOLUTION 1024

#define	ADC_CH_BTEMP_MIN 0

#define	ADC_CH_BTEMP_MAX 1350

#define	ADC_CH_DIETEMP_MIN 0

#define	ADC_CH_DIETEMP_MAX 1350

#define	ADC_CH_CHG_V_MIN 0

#define	ADC_CH_CHG_V_MAX 20030

#define	ADC_CH_ACCDET2_MIN 0

#define	ADC_CH_ACCDET2_MAX 2500

#define	ADC_CH_VBAT_MIN 2300

#define	ADC_CH_VBAT_MAX 4800

#define	ADC_CH_CHG_I_MIN 0

#define	ADC_CH_CHG_I_MAX 1500

#define	ADC_CH_BKBAT_MIN 0

#define	ADC_CH_BKBAT_MAX 3200

#define	CALIB_SCALE 1000

Enumerations
enum	cal_channels { ADC_INPUT_VMAIN = 0, ADC_INPUT_BTEMP, ADC_INPUT_VBAT, NBR_CAL_INPUTS }

Functions
struct ab8500_gpadc *	ab8500_gpadc_get (char *name)

	EXPORT_SYMBOL (ab8500_gpadc_get)

int	ab8500_gpadc_ad_to_voltage (struct ab8500_gpadc *gpadc, u8 channel, int ad_value)

	EXPORT_SYMBOL (ab8500_gpadc_ad_to_voltage)

int	ab8500_gpadc_convert (struct ab8500_gpadc *gpadc, u8 channel)

	EXPORT_SYMBOL (ab8500_gpadc_convert)

int	ab8500_gpadc_read_raw (struct ab8500_gpadc *gpadc, u8 channel)

	EXPORT_SYMBOL (ab8500_gpadc_read_raw)

	subsys_initcall_sync (ab8500_gpadc_init)

	module_exit (ab8500_gpadc_exit)

	MODULE_LICENSE ("GPL v2")

	MODULE_AUTHOR ("Arun R Murthy, Daniel Willerud, Johan Palsson")

	MODULE_ALIAS ("platform:ab8500_gpadc")

	MODULE_DESCRIPTION ("AB8500 GPADC driver")

Macro Definition Documentation

#define AB8500_GPADC_AUTO_TIMER_REG 0x03

Definition at line 32 of file ab8500-gpadc.c.

#define AB8500_GPADC_AUTODATAH_REG 0x08

Definition at line 37 of file ab8500-gpadc.c.

#define AB8500_GPADC_AUTODATAL_REG 0x07

Definition at line 36 of file ab8500-gpadc.c.

#define AB8500_GPADC_CAL_1 0x0F

Definition at line 44 of file ab8500-gpadc.c.

#define AB8500_GPADC_CAL_2 0x10

Definition at line 45 of file ab8500-gpadc.c.

#define AB8500_GPADC_CAL_3 0x11

Definition at line 46 of file ab8500-gpadc.c.

#define AB8500_GPADC_CAL_4 0x12

Definition at line 47 of file ab8500-gpadc.c.

#define AB8500_GPADC_CAL_5 0x13

Definition at line 48 of file ab8500-gpadc.c.

#define AB8500_GPADC_CAL_6 0x14

Definition at line 49 of file ab8500-gpadc.c.

#define AB8500_GPADC_CAL_7 0x15

Definition at line 50 of file ab8500-gpadc.c.

#define AB8500_GPADC_CTRL1_REG 0x00

Definition at line 29 of file ab8500-gpadc.c.

#define AB8500_GPADC_CTRL2_REG 0x01

Definition at line 30 of file ab8500-gpadc.c.

#define AB8500_GPADC_CTRL3_REG 0x02

Definition at line 31 of file ab8500-gpadc.c.

#define AB8500_GPADC_MANDATAH_REG 0x06

Definition at line 35 of file ab8500-gpadc.c.

#define AB8500_GPADC_MANDATAL_REG 0x05

Definition at line 34 of file ab8500-gpadc.c.

#define AB8500_GPADC_MUX_CTRL_REG 0x09

Definition at line 38 of file ab8500-gpadc.c.

#define AB8500_GPADC_STAT_REG 0x04

Definition at line 33 of file ab8500-gpadc.c.

#define ADC_CH_ACCDET2_MAX 2500

Definition at line 74 of file ab8500-gpadc.c.

#define ADC_CH_ACCDET2_MIN 0

Definition at line 73 of file ab8500-gpadc.c.

#define ADC_CH_BKBAT_MAX 3200

Definition at line 80 of file ab8500-gpadc.c.

#define ADC_CH_BKBAT_MIN 0

Definition at line 79 of file ab8500-gpadc.c.

#define ADC_CH_BTEMP_MAX 1350

Definition at line 68 of file ab8500-gpadc.c.

#define ADC_CH_BTEMP_MIN 0

Definition at line 67 of file ab8500-gpadc.c.

#define ADC_CH_CHG_I_MAX 1500

Definition at line 78 of file ab8500-gpadc.c.

#define ADC_CH_CHG_I_MIN 0

Definition at line 77 of file ab8500-gpadc.c.

#define ADC_CH_CHG_V_MAX 20030

Definition at line 72 of file ab8500-gpadc.c.

#define ADC_CH_CHG_V_MIN 0

Definition at line 71 of file ab8500-gpadc.c.

#define ADC_CH_DIETEMP_MAX 1350

Definition at line 70 of file ab8500-gpadc.c.

#define ADC_CH_DIETEMP_MIN 0

Definition at line 69 of file ab8500-gpadc.c.

#define ADC_CH_VBAT_MAX 4800

Definition at line 76 of file ab8500-gpadc.c.

#define ADC_CH_VBAT_MIN 2300

Definition at line 75 of file ab8500-gpadc.c.

#define ADC_RESOLUTION 1024

Definition at line 66 of file ab8500-gpadc.c.

#define ADC_SW_CONV 0x04

Definition at line 58 of file ab8500-gpadc.c.

#define BTEMP_PULL_UP 0x08

Definition at line 60 of file ab8500-gpadc.c.

#define CALIB_SCALE 1000

Definition at line 83 of file ab8500-gpadc.c.

#define DIS_GPADC 0x00

Definition at line 56 of file ab8500-gpadc.c.

#define DIS_ZERO 0x00

Definition at line 62 of file ab8500-gpadc.c.

#define EN_BUF 0x40

Definition at line 61 of file ab8500-gpadc.c.

#define EN_GPADC 0x01

Definition at line 55 of file ab8500-gpadc.c.

#define EN_ICHAR 0x80

Definition at line 59 of file ab8500-gpadc.c.

#define EN_VINTCORE12 0x04

Definition at line 53 of file ab8500-gpadc.c.

#define EN_VTVOUT 0x02

Definition at line 54 of file ab8500-gpadc.c.

#define GPADC_BUSY 0x01

Definition at line 63 of file ab8500-gpadc.c.

#define SW_AVG_16 0x60

Definition at line 57 of file ab8500-gpadc.c.

Enumeration Type Documentation

enum cal_channels

Enumerator:

ADC_INPUT_VMAIN
ADC_INPUT_BTEMP
ADC_INPUT_VBAT
NBR_CAL_INPUTS

Definition at line 85 of file ab8500-gpadc.c.

Function Documentation

int ab8500_gpadc_ad_to_voltage	(	struct ab8500_gpadc *	gpadc,
		u8	channel,
		int	ad_value
	)

ab8500_gpadc_ad_to_voltage() - Convert a raw ADC value to a voltage

Definition at line 149 of file ab8500-gpadc.c.

int ab8500_gpadc_convert	(	struct ab8500_gpadc *	gpadc,
		u8	channel
	)

ab8500_gpadc_convert() - gpadc conversion : analog channel to be converted to digital data

This function converts the selected analog i/p to digital data.

Definition at line 247 of file ab8500-gpadc.c.

struct ab8500_gpadc* ab8500_gpadc_get ( char * name )

read

ab8500_gpadc_get() - returns a reference to the primary AB8500 GPADC (i.e. the first GPADC in the instance list)

Definition at line 133 of file ab8500-gpadc.c.

int ab8500_gpadc_read_raw	(	struct ab8500_gpadc *	gpadc,
		u8	channel
	)

ab8500_gpadc_read_raw() - gpadc read : analog channel to be read

This function obtains the raw ADC value, this then needs to be converted by calling ab8500_gpadc_ad_to_voltage()

Definition at line 275 of file ab8500-gpadc.c.

EXPORT_SYMBOL ( ab8500_gpadc_get )

EXPORT_SYMBOL ( ab8500_gpadc_ad_to_voltage )

EXPORT_SYMBOL ( ab8500_gpadc_convert )

EXPORT_SYMBOL ( ab8500_gpadc_read_raw )

MODULE_ALIAS ( "platform:ab8500_gpadc" )

MODULE_AUTHOR	(	"Arun R	Murthy,
		Daniel	Willerud,
		Johan Palsson"
	)

MODULE_DESCRIPTION ( "AB8500 GPADC driver" )

module_exit ( ab8500_gpadc_exit )

MODULE_LICENSE ( "GPL v2" )

subsys_initcall_sync ( ab8500_gpadc_init )

Data Structures

Macros

Enumerations

Functions

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation