/*
* adc.h -- Driver for NXP PCF50633 ADC
*
* (C) 2006-2008 by Openmoko, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __LINUX_MFD_PCF50633_ADC_H
#define __LINUX_MFD_PCF50633_ADC_H
#include <linux/mfd/pcf50633/core.h>
#include <linux/platform_device.h>
/* ADC Registers */
#define PCF50633_REG_ADCC3 0x52
#define PCF50633_REG_ADCC2 0x53
#define PCF50633_REG_ADCC1 0x54
#define PCF50633_REG_ADCS1 0x55
#define PCF50633_REG_ADCS2 0x56
#define PCF50633_REG_ADCS3 0x57
#define PCF50633_ADCC1_ADCSTART 0x01
#define PCF50633_ADCC1_RES_8BIT 0x02
#define PCF50633_ADCC1_RES_10BIT 0x00
#define PCF50633_ADCC1_AVERAGE_NO 0x00
#define PCF50633_ADCC1_AVERAGE_4 0x04
#define PCF50633_ADCC1_AVERAGE_8 0x08
#define PCF50633_ADCC1_AVERAGE_16 0x0c
#define PCF50633_ADCC1_MUX_BATSNS_RES 0x00
#define PCF50633_ADCC1_MUX_BATSNS_SUBTR 0x10
#define PCF50633_ADCC1_MUX_ADCIN2_RES 0x20
#define PCF50633_ADCC1_MUX_ADCIN2_SUBTR 0x30
#define PCF50633_ADCC1_MUX_BATTEMP 0x60
#define PCF50633_ADCC1_MUX_ADCIN1 0x70
#define PCF50633_ADCC1_AVERAGE_MASK 0x0c
#define PCF50633_ADCC1_ADCMUX_MASK 0xf0
#define PCF50633_ADCC2_RATIO_NONE 0x00
#define PCF50633_ADCC2_RATIO_BATTEMP 0x01
#define PCF50633_ADCC2_RATIO_ADCIN1 0x02
#define PCF50633_ADCC2_RATIO_BOTH 0x03
#define PCF50633_ADCC2_RATIOSETTL_100US 0x04
#define PCF50633_ADCC3_ACCSW_EN 0x01
#define PCF50633_ADCC3_NTCSW_EN 0x04
#define PCF50633_ADCC3_RES_DIV_TWO 0x10
#define PCF50633_ADCC3_RES_DIV_THREE 0x00
#define PCF50633_ADCS3_REF_NTCSW 0x00
#define PCF50633_ADCS3_REF_ACCSW 0x10
#define PCF50633_ADCS3_REF_2V0 0x20
#define PCF50633_ADCS3_REF_VISA 0x30
#define PCF50633_ADCS3_REF_2V0_2 0x70
#define PCF50633_ADCS3_ADCRDY 0x80
#define PCF50633_ADCS3_ADCDAT1L_MASK 0x03
#define PCF50633_ADCS3_ADCDAT2L_MASK 0x0c
#define PCF50633_ADCS3_ADCDAT2L_SHIFT 2
#define PCF50633_ASCS3_REF_MASK 0x70
extern int
pcf50633_adc_async_read(struct pcf50633 *pcf, int mux, int avg,
void (*callback)(struct pcf50633 *, void *, int),
void *callback_param);
extern int
pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg);
#endif /* __LINUX_PCF50633_ADC_H */