| | 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 */ |
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