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 | |
44 | struct device; |
45 | struct regmap; |
46 | |
47 | bool zpa2326_isreg_writeable(struct device *dev, unsigned int reg); |
48 | bool zpa2326_isreg_readable(struct device *dev, unsigned int reg); |
49 | bool 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 | */ |
61 | int 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 | */ |
71 | void zpa2326_remove(const struct device *parent); |
72 | |
73 | #ifdef CONFIG_PM |
74 | #include <linux/pm.h> |
75 | extern 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 | |