82 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Murata ZPA2326 pressure and temperature sensor IIO driver4 *5 * Copyright (c) 2016 Parrot S.A.6 *7 * Author: Gregor Boirie <gregor.boirie@parrot.com>8 */9 10#ifndef _ZPA2326_H11#define _ZPA2326_H12 13/* Register map. */14#define ZPA2326_REF_P_XL_REG (0x8)15#define ZPA2326_REF_P_L_REG (0x9)16#define ZPA2326_REF_P_H_REG (0xa)17#define ZPA2326_DEVICE_ID_REG (0xf)18#define ZPA2326_DEVICE_ID (0xb9)19#define ZPA2326_RES_CONF_REG (0x10)20#define ZPA2326_CTRL_REG0_REG (0x20)21#define ZPA2326_CTRL_REG0_ONE_SHOT BIT(0)22#define ZPA2326_CTRL_REG0_ENABLE BIT(1)23#define ZPA2326_CTRL_REG1_REG (0x21)24#define ZPA2326_CTRL_REG1_MASK_DATA_READY BIT(2)25#define ZPA2326_CTRL_REG2_REG (0x22)26#define ZPA2326_CTRL_REG2_SWRESET BIT(2)27#define ZPA2326_CTRL_REG3_REG (0x23)28#define ZPA2326_CTRL_REG3_ODR_SHIFT (4)29#define ZPA2326_CTRL_REG3_ENABLE_MEAS BIT(7)30#define ZPA2326_INT_SOURCE_REG (0x24)31#define ZPA2326_INT_SOURCE_DATA_READY BIT(2)32#define ZPA2326_THS_P_LOW_REG (0x25)33#define ZPA2326_THS_P_HIGH_REG (0x26)34#define ZPA2326_STATUS_REG (0x27)35#define ZPA2326_STATUS_P_DA BIT(1)36#define ZPA2326_STATUS_FIFO_E BIT(2)37#define ZPA2326_STATUS_P_OR BIT(5)38#define ZPA2326_PRESS_OUT_XL_REG (0x28)39#define ZPA2326_PRESS_OUT_L_REG (0x29)40#define ZPA2326_PRESS_OUT_H_REG (0x2a)41#define ZPA2326_TEMP_OUT_L_REG (0x2b)42#define ZPA2326_TEMP_OUT_H_REG (0x2c)43 44struct device;45struct regmap;46 47bool zpa2326_isreg_writeable(struct device *dev, unsigned int reg);48bool zpa2326_isreg_readable(struct device *dev, unsigned int reg);49bool zpa2326_isreg_precious(struct device *dev, unsigned int reg);50 51/**52 * zpa2326_probe() - Instantiate and register core ZPA2326 IIO device53 * @parent: Hardware sampling device the created IIO device will be a child of.54 * @name: Arbitrary name to identify the device.55 * @irq: Interrupt line, negative if none.56 * @hwid: Expected device hardware id.57 * @regmap: Registers map used to abstract underlying bus accesses.58 *59 * Return: Zero when successful, a negative error code otherwise.60 */61int zpa2326_probe(struct device *parent,62 const char *name,63 int irq,64 unsigned int hwid,65 struct regmap *regmap);66 67/**68 * zpa2326_remove() - Unregister and destroy core ZPA2326 IIO device.69 * @parent: Hardware sampling device the IIO device to remove is a child of.70 */71void zpa2326_remove(const struct device *parent);72 73#ifdef CONFIG_PM74#include <linux/pm.h>75extern const struct dev_pm_ops zpa2326_pm_ops;76#define ZPA2326_PM_OPS (&zpa2326_pm_ops)77#else78#define ZPA2326_PM_OPS (NULL)79#endif80 81#endif82