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