/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Murata ZPA2326 pressure and temperature sensor IIO driver
*
* Copyright ( c ) 2016 Parrot S . A .
*
* Author : Gregor Boirie < gregor . boirie @ parrot . com >
*/
#ifndef _ZPA2326_H
#define _ZPA2326_H
/* Register map. */
#define ZPA2326_REF_P_XL_REG (0 x8)
#define ZPA2326_REF_P_L_REG (0 x9)
#define ZPA2326_REF_P_H_REG (0 xa)
#define ZPA2326_DEVICE_ID_REG (0 xf)
#define ZPA2326_DEVICE_ID (0 xb9)
#define ZPA2326_RES_CONF_REG (0 x10)
#define ZPA2326_CTRL_REG0_REG (0 x20)
#define ZPA2326_CTRL_REG0_ONE_SHOT BIT(0 )
#define ZPA2326_CTRL_REG0_ENABLE BIT(1 )
#define ZPA2326_CTRL_REG1_REG (0 x21)
#define ZPA2326_CTRL_REG1_MASK_DATA_READY BIT(2 )
#define ZPA2326_CTRL_REG2_REG (0 x22)
#define ZPA2326_CTRL_REG2_SWRESET BIT(2 )
#define ZPA2326_CTRL_REG3_REG (0 x23)
#define ZPA2326_CTRL_REG3_ODR_SHIFT (4 )
#define ZPA2326_CTRL_REG3_ENABLE_MEAS BIT(7 )
#define ZPA2326_INT_SOURCE_REG (0 x24)
#define ZPA2326_INT_SOURCE_DATA_READY BIT(2 )
#define ZPA2326_THS_P_LOW_REG (0 x25)
#define ZPA2326_THS_P_HIGH_REG (0 x26)
#define ZPA2326_STATUS_REG (0 x27)
#define ZPA2326_STATUS_P_DA BIT(1 )
#define ZPA2326_STATUS_FIFO_E BIT(2 )
#define ZPA2326_STATUS_P_OR BIT(5 )
#define ZPA2326_PRESS_OUT_XL_REG (0 x28)
#define ZPA2326_PRESS_OUT_L_REG (0 x29)
#define ZPA2326_PRESS_OUT_H_REG (0 x2a)
#define ZPA2326_TEMP_OUT_L_REG (0 x2b)
#define ZPA2326_TEMP_OUT_H_REG (0 x2c)
struct device;
struct regmap;
bool zpa2326_isreg_writeable(struct device *dev, unsigned int reg);
bool zpa2326_isreg_readable(struct device *dev, unsigned int reg);
bool zpa2326_isreg_precious(struct device *dev, unsigned int reg);
/**
* zpa2326_probe ( ) - Instantiate and register core ZPA2326 IIO device
* @ parent : Hardware sampling device the created IIO device will be a child of .
* @ name : Arbitrary name to identify the device .
* @ irq : Interrupt line , negative if none .
* @ hwid : Expected device hardware id .
* @ regmap : Registers map used to abstract underlying bus accesses .
*
* Return : Zero when successful , a negative error code otherwise .
*/
int zpa2326_probe(struct device *parent,
const char *name,
int irq,
unsigned int hwid,
struct regmap *regmap);
/**
* zpa2326_remove ( ) - Unregister and destroy core ZPA2326 IIO device .
* @ parent : Hardware sampling device the IIO device to remove is a child of .
*/
void zpa2326_remove(const struct device *parent);
#ifdef CONFIG_PM
#include <linux/pm.h>
extern const struct dev_pm_ops zpa2326_pm_ops;
#define ZPA2326_PM_OPS (&zpa2326_pm_ops)
#else
#define ZPA2326_PM_OPS (NULL)
#endif
#endif
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