LXR linux/drivers/iio/pressure/zpa2326.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Murata ZPA2326 pressure and temperature sensor IIO driver
   4 *
   5 * Copyright (c) 2016 Parrot S.A.
   6 *
   7 * Author: Gregor Boirie <gregor.boirie@parrot.com>
   8 */
   9
  10#ifndef _ZPA2326_H
  11#define _ZPA2326_H
  12
  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 device
  53 * @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_PM
  74#include <linux/pm.h>
  75extern const struct dev_pm_ops zpa2326_pm_ops;
  76#define ZPA2326_PM_OPS (&zpa2326_pm_ops)
  77#else
  78#define ZPA2326_PM_OPS (NULL)
  79#endif
  80
  81#endif
  82