forked from luck/tmp_suning_uos_patched
8ec4cf5303
This patch adds support for the Analog Devices AD7265 and AD7266 Analog-to-Digital converters. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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* AD7266/65 SPI ADC driver
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*
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* Copyright 2012 Analog Devices Inc.
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*
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* Licensed under the GPL-2.
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*/
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#ifndef __IIO_ADC_AD7266_H__
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#define __IIO_ADC_AD7266_H__
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/**
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* enum ad7266_range - AD7266 reference voltage range
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* @AD7266_RANGE_VREF: Device is configured for input range 0V - VREF
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* (RANGE pin set to low)
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* @AD7266_RANGE_2VREF: Device is configured for input range 0V - 2VREF
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* (RANGE pin set to high)
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*/
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enum ad7266_range {
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AD7266_RANGE_VREF,
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AD7266_RANGE_2VREF,
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};
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/**
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* enum ad7266_mode - AD7266 sample mode
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* @AD7266_MODE_DIFF: Device is configured for full differential mode
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* (SGL/DIFF pin set to low, AD0 pin set to low)
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* @AD7266_MODE_PSEUDO_DIFF: Device is configured for pseudo differential mode
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* (SGL/DIFF pin set to low, AD0 pin set to high)
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* @AD7266_MODE_SINGLE_ENDED: Device is configured for single-ended mode
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* (SGL/DIFF pin set to high)
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*/
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enum ad7266_mode {
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AD7266_MODE_DIFF,
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AD7266_MODE_PSEUDO_DIFF,
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AD7266_MODE_SINGLE_ENDED,
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};
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/**
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* struct ad7266_platform_data - Platform data for the AD7266 driver
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* @range: Reference voltage range the device is configured for
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* @mode: Sample mode the device is configured for
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* @fixed_addr: Whether the address pins are hard-wired
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* @addr_gpios: GPIOs used for controlling the address pins, only used if
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* fixed_addr is set to false.
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*/
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struct ad7266_platform_data {
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enum ad7266_range range;
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enum ad7266_mode mode;
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bool fixed_addr;
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unsigned int addr_gpios[3];
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};
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#endif
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