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