1 /* 2 * adc.h -- Driver for NXP PCF50633 ADC 3 * 4 * (C) 2006-2008 by Openmoko, Inc. 5 * All rights reserved. 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 */ 12 13 #ifndef __LINUX_MFD_PCF50633_ADC_H 14 #define __LINUX_MFD_PCF50633_ADC_H 15 16 #include <linux/mfd/pcf50633/core.h> 17 #include <linux/platform_device.h> 18 19 /* ADC Registers */ 20 #define PCF50633_REG_ADCC3 0x52 21 #define PCF50633_REG_ADCC2 0x53 22 #define PCF50633_REG_ADCC1 0x54 23 #define PCF50633_REG_ADCS1 0x55 24 #define PCF50633_REG_ADCS2 0x56 25 #define PCF50633_REG_ADCS3 0x57 26 27 #define PCF50633_ADCC1_ADCSTART 0x01 28 #define PCF50633_ADCC1_RES_8BIT 0x02 29 #define PCF50633_ADCC1_RES_10BIT 0x00 30 #define PCF50633_ADCC1_AVERAGE_NO 0x00 31 #define PCF50633_ADCC1_AVERAGE_4 0x04 32 #define PCF50633_ADCC1_AVERAGE_8 0x08 33 #define PCF50633_ADCC1_AVERAGE_16 0x0c 34 #define PCF50633_ADCC1_MUX_BATSNS_RES 0x00 35 #define PCF50633_ADCC1_MUX_BATSNS_SUBTR 0x10 36 #define PCF50633_ADCC1_MUX_ADCIN2_RES 0x20 37 #define PCF50633_ADCC1_MUX_ADCIN2_SUBTR 0x30 38 #define PCF50633_ADCC1_MUX_BATTEMP 0x60 39 #define PCF50633_ADCC1_MUX_ADCIN1 0x70 40 #define PCF50633_ADCC1_AVERAGE_MASK 0x0c 41 #define PCF50633_ADCC1_ADCMUX_MASK 0xf0 42 43 #define PCF50633_ADCC2_RATIO_NONE 0x00 44 #define PCF50633_ADCC2_RATIO_BATTEMP 0x01 45 #define PCF50633_ADCC2_RATIO_ADCIN1 0x02 46 #define PCF50633_ADCC2_RATIO_BOTH 0x03 47 #define PCF50633_ADCC2_RATIOSETTL_100US 0x04 48 49 #define PCF50633_ADCC3_ACCSW_EN 0x01 50 #define PCF50633_ADCC3_NTCSW_EN 0x04 51 #define PCF50633_ADCC3_RES_DIV_TWO 0x10 52 #define PCF50633_ADCC3_RES_DIV_THREE 0x00 53 54 #define PCF50633_ADCS3_REF_NTCSW 0x00 55 #define PCF50633_ADCS3_REF_ACCSW 0x10 56 #define PCF50633_ADCS3_REF_2V0 0x20 57 #define PCF50633_ADCS3_REF_VISA 0x30 58 #define PCF50633_ADCS3_REF_2V0_2 0x70 59 #define PCF50633_ADCS3_ADCRDY 0x80 60 61 #define PCF50633_ADCS3_ADCDAT1L_MASK 0x03 62 #define PCF50633_ADCS3_ADCDAT2L_MASK 0x0c 63 #define PCF50633_ADCS3_ADCDAT2L_SHIFT 2 64 #define PCF50633_ASCS3_REF_MASK 0x70 65 66 extern int 67 pcf50633_adc_async_read(struct pcf50633 *pcf, int mux, int avg, 68 void (*callback)(struct pcf50633 *, void *, int), 69 void *callback_param); 70 extern int 71 pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg); 72 73 #endif /* __LINUX_PCF50633_ADC_H */ 74