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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extcon-adc-jack.h (2243B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * include/linux/extcon/extcon-adc-jack.h
      4 *
      5 * Analog Jack extcon driver with ADC-based detection capability.
      6 *
      7 * Copyright (C) 2012 Samsung Electronics
      8 * MyungJoo Ham <myungjoo.ham@samsung.com>
      9 */
     10
     11#ifndef _EXTCON_ADC_JACK_H_
     12#define _EXTCON_ADC_JACK_H_ __FILE__
     13
     14#include <linux/module.h>
     15#include <linux/extcon.h>
     16
     17/**
     18 * struct adc_jack_cond - condition to use an extcon state
     19 *			denotes the last adc_jack_cond element among the array)
     20 * @id:			the unique id of each external connector
     21 * @min_adc:		min adc value for this condition
     22 * @max_adc:		max adc value for this condition
     23 *
     24 * For example, if { .state = 0x3, .min_adc = 100, .max_adc = 200}, it means
     25 * that if ADC value is between (inclusive) 100 and 200, than the cable 0 and
     26 * 1 are attached (1<<0 | 1<<1 == 0x3)
     27 *
     28 * Note that you don't need to describe condition for "no cable attached"
     29 * because when no adc_jack_cond is met, state = 0 is automatically chosen.
     30 */
     31struct adc_jack_cond {
     32	unsigned int id;
     33	u32 min_adc;
     34	u32 max_adc;
     35};
     36
     37/**
     38 * struct adc_jack_pdata - platform data for adc jack device.
     39 * @name:		name of the extcon device. If null, "adc-jack" is used.
     40 * @consumer_channel:	Unique name to identify the channel on the consumer
     41 *			side. This typically describes the channels used within
     42 *			the consumer. E.g. 'battery_voltage'
     43 * @cable_names:	array of extcon id for supported cables.
     44 * @adc_contitions:	array of struct adc_jack_cond conditions ending
     45 *			with .state = 0 entry. This describes how to decode
     46 *			adc values into extcon state.
     47 * @irq_flags:		irq flags used for the @irq
     48 * @handling_delay_ms:	in some devices, we need to read ADC value some
     49 *			milli-seconds after the interrupt occurs. You may
     50 *			describe such delays with @handling_delay_ms, which
     51 *			is rounded-off by jiffies.
     52 * @wakeup_source:	flag to wake up the system for extcon events.
     53 */
     54struct adc_jack_pdata {
     55	const char *name;
     56	const char *consumer_channel;
     57
     58	const unsigned int *cable_names;
     59
     60	/* The last entry's state should be 0 */
     61	struct adc_jack_cond *adc_conditions;
     62
     63	unsigned long irq_flags;
     64	unsigned long handling_delay_ms; /* in ms */
     65	bool wakeup_source;
     66};
     67
     68#endif /* _EXTCON_ADC_JACK_H */