| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * adc.h -- Driver for NXP PCF50633 ADC |
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| 4 | * |
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| 5 | * (C) 2006-2008 by Openmoko, Inc. |
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| 6 | * All rights reserved. |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef __LINUX_MFD_PCF50633_ADC_H |
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| 10 | #define __LINUX_MFD_PCF50633_ADC_H |
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| 11 | |
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| 12 | #include <linux/mfd/pcf50633/core.h> |
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| 13 | #include <linux/platform_device.h> |
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| 14 | |
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| 15 | /* ADC Registers */ |
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| 16 | #define PCF50633_REG_ADCC3 0x52 |
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| 17 | #define PCF50633_REG_ADCC2 0x53 |
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| 18 | #define PCF50633_REG_ADCC1 0x54 |
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| 19 | #define PCF50633_REG_ADCS1 0x55 |
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| 20 | #define PCF50633_REG_ADCS2 0x56 |
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| 21 | #define PCF50633_REG_ADCS3 0x57 |
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| 22 | |
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| 23 | #define PCF50633_ADCC1_ADCSTART 0x01 |
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| 24 | #define PCF50633_ADCC1_RES_8BIT 0x02 |
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| 25 | #define PCF50633_ADCC1_RES_10BIT 0x00 |
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| 26 | #define PCF50633_ADCC1_AVERAGE_NO 0x00 |
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| 27 | #define PCF50633_ADCC1_AVERAGE_4 0x04 |
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| 28 | #define PCF50633_ADCC1_AVERAGE_8 0x08 |
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| 29 | #define PCF50633_ADCC1_AVERAGE_16 0x0c |
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| 30 | #define PCF50633_ADCC1_MUX_BATSNS_RES 0x00 |
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| 31 | #define PCF50633_ADCC1_MUX_BATSNS_SUBTR 0x10 |
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| 32 | #define PCF50633_ADCC1_MUX_ADCIN2_RES 0x20 |
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| 33 | #define PCF50633_ADCC1_MUX_ADCIN2_SUBTR 0x30 |
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| 34 | #define PCF50633_ADCC1_MUX_BATTEMP 0x60 |
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| 35 | #define PCF50633_ADCC1_MUX_ADCIN1 0x70 |
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| 36 | #define PCF50633_ADCC1_AVERAGE_MASK 0x0c |
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| 37 | #define PCF50633_ADCC1_ADCMUX_MASK 0xf0 |
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| 38 | |
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| 39 | #define PCF50633_ADCC2_RATIO_NONE 0x00 |
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| 40 | #define PCF50633_ADCC2_RATIO_BATTEMP 0x01 |
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| 41 | #define PCF50633_ADCC2_RATIO_ADCIN1 0x02 |
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| 42 | #define PCF50633_ADCC2_RATIO_BOTH 0x03 |
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| 43 | #define PCF50633_ADCC2_RATIOSETTL_100US 0x04 |
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| 44 | |
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| 45 | #define PCF50633_ADCC3_ACCSW_EN 0x01 |
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| 46 | #define PCF50633_ADCC3_NTCSW_EN 0x04 |
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| 47 | #define PCF50633_ADCC3_RES_DIV_TWO 0x10 |
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| 48 | #define PCF50633_ADCC3_RES_DIV_THREE 0x00 |
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| 49 | |
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| 50 | #define PCF50633_ADCS3_REF_NTCSW 0x00 |
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| 51 | #define PCF50633_ADCS3_REF_ACCSW 0x10 |
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| 52 | #define PCF50633_ADCS3_REF_2V0 0x20 |
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| 53 | #define PCF50633_ADCS3_REF_VISA 0x30 |
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| 54 | #define PCF50633_ADCS3_REF_2V0_2 0x70 |
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| 55 | #define PCF50633_ADCS3_ADCRDY 0x80 |
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| 56 | |
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| 57 | #define PCF50633_ADCS3_ADCDAT1L_MASK 0x03 |
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| 58 | #define PCF50633_ADCS3_ADCDAT2L_MASK 0x0c |
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| 59 | #define PCF50633_ADCS3_ADCDAT2L_SHIFT 2 |
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| 60 | #define PCF50633_ASCS3_REF_MASK 0x70 |
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| 61 | |
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| 62 | extern int |
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| 63 | pcf50633_adc_async_read(struct pcf50633 *pcf, int mux, int avg, |
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| 64 | void (*callback)(struct pcf50633 *, void *, int), |
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| 65 | void *callback_param); |
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| 66 | extern int |
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| 67 | pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg); |
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| 68 | |
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| 69 | #endif /* __LINUX_PCF50633_ADC_H */ |
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| 70 | |
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