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/*
* Murata ZPA2326 pressure and temperature sensor IIO driver
*
* Copyright (c) 2016 Parrot S.A.
*
* Author: Gregor Boirie <gregor.boirie@parrot.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#ifndef _ZPA2326_H
#define _ZPA2326_H
/* Register map. */
#define ZPA2326_REF_P_XL_REG (0x8)
#define ZPA2326_REF_P_L_REG (0x9)
#define ZPA2326_REF_P_H_REG (0xa)
#define ZPA2326_DEVICE_ID_REG (0xf)
#define ZPA2326_DEVICE_ID (0xb9)
#define ZPA2326_RES_CONF_REG (0x10)
#define ZPA2326_CTRL_REG0_REG (0x20)
#define ZPA2326_CTRL_REG0_ONE_SHOT BIT(0)
#define ZPA2326_CTRL_REG0_ENABLE BIT(1)
#define ZPA2326_CTRL_REG1_REG (0x21)
#define ZPA2326_CTRL_REG1_MASK_DATA_READY BIT(2)
#define ZPA2326_CTRL_REG2_REG (0x22)
#define ZPA2326_CTRL_REG2_SWRESET BIT(2)
#define ZPA2326_CTRL_REG3_REG (0x23)
#define ZPA2326_CTRL_REG3_ODR_SHIFT (4)
#define ZPA2326_CTRL_REG3_ENABLE_MEAS BIT(7)
#define ZPA2326_INT_SOURCE_REG (0x24)
#define ZPA2326_INT_SOURCE_DATA_READY BIT(2)
#define ZPA2326_THS_P_LOW_REG (0x25)
#define ZPA2326_THS_P_HIGH_REG (0x26)
#define ZPA2326_STATUS_REG (0x27)
#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 (0x28)
#define ZPA2326_PRESS_OUT_L_REG (0x29)
#define ZPA2326_PRESS_OUT_H_REG (0x2a)
#define ZPA2326_TEMP_OUT_L_REG (0x2b)
#define ZPA2326_TEMP_OUT_H_REG (0x2c)
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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