linux/drivers/iio/adc/ad7606.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * AD7606 ADC driver
 *
 * Copyright 2011 Analog Devices Inc.
 */

#ifndef IIO_ADC_AD7606_H_
#define IIO_ADC_AD7606_H_

#define AD760X_CHANNEL(num, mask_sep, mask_type, mask_all) …

#define AD7605_CHANNEL(num) …

#define AD7606_CHANNEL(num) …

#define AD7616_CHANNEL(num) …

/**
 * struct ad7606_chip_info - chip specific information
 * @channels:		channel specification
 * @num_channels:	number of channels
 * @oversampling_avail	pointer to the array which stores the available
 *			oversampling ratios.
 * @oversampling_num	number of elements stored in oversampling_avail array
 * @os_req_reset	some devices require a reset to update oversampling
 * @init_delay_ms	required delay in miliseconds for initialization
 *			after a restart
 */
struct ad7606_chip_info { … };

/**
 * struct ad7606_state - driver instance specific data
 * @dev		pointer to kernel device
 * @chip_info		entry in the table of chips that describes this device
 * @bops		bus operations (SPI or parallel)
 * @range		voltage range selection, selects which scale to apply
 * @oversampling	oversampling selection
 * @base_address	address from where to read data in parallel operation
 * @sw_mode_en		software mode enabled
 * @scale_avail		pointer to the array which stores the available scales
 * @num_scales		number of elements stored in the scale_avail array
 * @oversampling_avail	pointer to the array which stores the available
 *			oversampling ratios.
 * @num_os_ratios	number of elements stored in oversampling_avail array
 * @write_scale		pointer to the function which writes the scale
 * @write_os		pointer to the function which writes the os
 * @lock		protect sensor state from concurrent accesses to GPIOs
 * @gpio_convst	GPIO descriptor for conversion start signal (CONVST)
 * @gpio_reset		GPIO descriptor for device hard-reset
 * @gpio_range		GPIO descriptor for range selection
 * @gpio_standby	GPIO descriptor for stand-by signal (STBY),
 *			controls power-down mode of device
 * @gpio_frstdata	GPIO descriptor for reading from device when data
 *			is being read on the first channel
 * @gpio_os		GPIO descriptors to control oversampling on the device
 * @complete		completion to indicate end of conversion
 * @trig		The IIO trigger associated with the device.
 * @data		buffer for reading data from the device
 * @d16			be16 buffer for reading data from the device
 */
struct ad7606_state { … };

/**
 * struct ad7606_bus_ops - driver bus operations
 * @read_block		function pointer for reading blocks of data
 * @sw_mode_config:	pointer to a function which configured the device
 *			for software mode
 * @reg_read	function pointer for reading spi register
 * @reg_write	function pointer for writing spi register
 * @write_mask	function pointer for write spi register with mask
 * @rd_wr_cmd	pointer to the function which calculates the spi address
 */
struct ad7606_bus_ops { … };

int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
		 const char *name, unsigned int id,
		 const struct ad7606_bus_ops *bops);

int ad7606_reset(struct ad7606_state *st);

enum ad7606_supported_device_ids { … };

#ifdef CONFIG_PM_SLEEP
extern const struct dev_pm_ops ad7606_pm_ops;
#define AD7606_PM_OPS …
#else
#define AD7606_PM_OPS …
#endif

#endif /* IIO_ADC_AD7606_H_ */