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/*
* Copyright (C) 2010 ST-Ericsson SA
* Licensed under GPLv2.
*
* Author: Arun R Murthy <arun.murthy@stericsson.com>
* Author: Daniel Willerud <daniel.willerud@stericsson.com>
* Author: M'boumba Cedric Madianga <cedric.madianga@stericsson.com>
*/
#ifndef _AB8500_GPADC_H
#define _AB8500_GPADC_H
/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2
* and ADCHwSel[4:0] in GPADCCtrl3 ) */
#define BAT_CTRL 0x01
#define BTEMP_BALL 0x02
#define MAIN_CHARGER_V 0x03
#define ACC_DETECT1 0x04
#define ACC_DETECT2 0x05
#define ADC_AUX1 0x06
#define ADC_AUX2 0x07
#define MAIN_BAT_V 0x08
#define VBUS_V 0x09
#define MAIN_CHARGER_C 0x0A
#define USB_CHARGER_C 0x0B
#define BK_BAT_V 0x0C
#define DIE_TEMP 0x0D
#define USB_ID 0x0E
#define XTAL_TEMP 0x12
#define VBAT_TRUE_MEAS 0x13
#define BAT_CTRL_AND_IBAT 0x1C
#define VBAT_MEAS_AND_IBAT 0x1D
#define VBAT_TRUE_MEAS_AND_IBAT 0x1E
#define BAT_TEMP_AND_IBAT 0x1F
/* Virtual channel used only for ibat convertion to ampere
* Battery current conversion (ibat) cannot be requested as a single conversion
* but it is always in combination with other input requests
*/
#define IBAT_VIRTUAL_CHANNEL 0xFF
#define SAMPLE_1 1
#define SAMPLE_4 4
#define SAMPLE_8 8
#define SAMPLE_16 16
#define RISING_EDGE 0
#define FALLING_EDGE 1
/* Arbitrary ADC conversion type constants */
#define ADC_SW 0
#define ADC_HW 1
struct ab8500_gpadc;
struct ab8500_gpadc *ab8500_gpadc_get(char *name);
int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel)
{
return ab8500_gpadc_sw_hw_convert(gpadc, channel,
SAMPLE_16, 0, 0, ADC_SW);
}
int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type,
int *ibat);
int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc,
u8 channel, int ad_value);
void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc,
u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h,
u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h);
#endif /* _AB8500_GPADC_H */