cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ad7793.h (3842B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * AD7792/AD7793 SPI ADC driver
      4 *
      5 * Copyright 2011 Analog Devices Inc.
      6 */
      7#ifndef __LINUX_PLATFORM_DATA_AD7793_H__
      8#define __LINUX_PLATFORM_DATA_AD7793_H__
      9
     10/**
     11 * enum ad7793_clock_source - AD7793 clock source selection
     12 * @AD7793_CLK_SRC_INT: Internal 64 kHz clock, not available at the CLK pin.
     13 * @AD7793_CLK_SRC_INT_CO: Internal 64 kHz clock, available at the CLK pin.
     14 * @AD7793_CLK_SRC_EXT: Use external clock.
     15 * @AD7793_CLK_SRC_EXT_DIV2: Use external clock divided by 2.
     16 */
     17enum ad7793_clock_source {
     18	AD7793_CLK_SRC_INT,
     19	AD7793_CLK_SRC_INT_CO,
     20	AD7793_CLK_SRC_EXT,
     21	AD7793_CLK_SRC_EXT_DIV2,
     22};
     23
     24/**
     25 * enum ad7793_bias_voltage - AD7793 bias voltage selection
     26 * @AD7793_BIAS_VOLTAGE_DISABLED: Bias voltage generator disabled
     27 * @AD7793_BIAS_VOLTAGE_AIN1: Bias voltage connected to AIN1(-).
     28 * @AD7793_BIAS_VOLTAGE_AIN2: Bias voltage connected to AIN2(-).
     29 * @AD7793_BIAS_VOLTAGE_AIN3: Bias voltage connected to AIN3(-).
     30 *	Only valid for AD7795/AD7796.
     31 */
     32enum ad7793_bias_voltage {
     33	AD7793_BIAS_VOLTAGE_DISABLED,
     34	AD7793_BIAS_VOLTAGE_AIN1,
     35	AD7793_BIAS_VOLTAGE_AIN2,
     36	AD7793_BIAS_VOLTAGE_AIN3,
     37};
     38
     39/**
     40 * enum ad7793_refsel - AD7793 reference voltage selection
     41 * @AD7793_REFSEL_REFIN1: External reference applied between REFIN1(+)
     42 *	and REFIN1(-).
     43 * @AD7793_REFSEL_REFIN2: External reference applied between REFIN2(+)
     44 *	and REFIN1(-). Only valid for AD7795/AD7796.
     45 * @AD7793_REFSEL_INTERNAL: Internal 1.17 V reference.
     46 */
     47enum ad7793_refsel {
     48	AD7793_REFSEL_REFIN1 = 0,
     49	AD7793_REFSEL_REFIN2 = 1,
     50	AD7793_REFSEL_INTERNAL = 2,
     51};
     52
     53/**
     54 * enum ad7793_current_source_direction - AD7793 excitation current direction
     55 * @AD7793_IEXEC1_IOUT1_IEXEC2_IOUT2: Current source IEXC1 connected to pin
     56 *	IOUT1, current source IEXC2 connected to pin IOUT2.
     57 * @AD7793_IEXEC1_IOUT2_IEXEC2_IOUT1: Current source IEXC2 connected to pin
     58 *	IOUT1, current source IEXC1 connected to pin IOUT2.
     59 * @AD7793_IEXEC1_IEXEC2_IOUT1: Both current sources connected to pin IOUT1.
     60 *	Only valid when the current sources are set to 10 uA or 210 uA.
     61 * @AD7793_IEXEC1_IEXEC2_IOUT2: Both current sources connected to Pin IOUT2.
     62 *	Only valid when the current ources are set to 10 uA or 210 uA.
     63 */
     64enum ad7793_current_source_direction {
     65	AD7793_IEXEC1_IOUT1_IEXEC2_IOUT2 = 0,
     66	AD7793_IEXEC1_IOUT2_IEXEC2_IOUT1 = 1,
     67	AD7793_IEXEC1_IEXEC2_IOUT1 = 2,
     68	AD7793_IEXEC1_IEXEC2_IOUT2 = 3,
     69};
     70
     71/**
     72 * enum ad7793_excitation_current - AD7793 excitation current selection
     73 * @AD7793_IX_DISABLED: Excitation current Disabled.
     74 * @AD7793_IX_10uA: Enable 10 micro-ampere excitation current.
     75 * @AD7793_IX_210uA: Enable 210 micro-ampere excitation current.
     76 * @AD7793_IX_1mA: Enable 1 milli-Ampere excitation current.
     77 */
     78enum ad7793_excitation_current {
     79	AD7793_IX_DISABLED = 0,
     80	AD7793_IX_10uA = 1,
     81	AD7793_IX_210uA = 2,
     82	AD7793_IX_1mA = 3,
     83};
     84
     85/**
     86 * struct ad7793_platform_data - AD7793 platform data
     87 * @clock_src: Clock source selection
     88 * @burnout_current: If set to true the 100nA burnout current is enabled.
     89 * @boost_enable: Enable boost for the bias voltage generator.
     90 * @buffered: If set to true configure the device for buffered input mode.
     91 * @unipolar: If set to true sample in unipolar mode, if set to false sample in
     92 *		bipolar mode.
     93 * @refsel: Reference voltage selection
     94 * @bias_voltage: Bias voltage selection
     95 * @exitation_current: Excitation current selection
     96 * @current_source_direction: Excitation current direction selection
     97 */
     98struct ad7793_platform_data {
     99	enum ad7793_clock_source clock_src;
    100	bool burnout_current;
    101	bool boost_enable;
    102	bool buffered;
    103	bool unipolar;
    104
    105	enum ad7793_refsel refsel;
    106	enum ad7793_bias_voltage bias_voltage;
    107	enum ad7793_excitation_current exitation_current;
    108	enum ad7793_current_source_direction current_source_direction;
    109};
    110
    111#endif /* IIO_ADC_AD7793_H_ */