1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Measurements Specialties common sensor driver
5 * Copyright (c) 2015 Measurement-Specialties
8 #ifndef _MS_SENSORS_I2C_H
9 #define _MS_SENSORS_I2C_H
11 #include <linux/i2c.h>
12 #include <linux/mutex.h>
14 #define MS_SENSORS_TP_PROM_WORDS_NB 7
17 * struct ms_ht_dev - Humidity/Temperature sensor device structure
19 * @lock: lock protecting the i2c conversion
20 * @res_index: index to selected sensor resolution
23 struct i2c_client *client;
29 * struct ms_tp_dev - Temperature/Pressure sensor device structure
31 * @lock: lock protecting the i2c conversion
32 * @prom: array of PROM coefficients used for conversion. Added element
34 * @res_index: index to selected sensor resolution
37 struct i2c_client *client;
39 u16 prom[MS_SENSORS_TP_PROM_WORDS_NB + 1];
43 int ms_sensors_reset(void *cli, u8 cmd, unsigned int delay);
44 int ms_sensors_read_prom_word(void *cli, int cmd, u16 *word);
45 int ms_sensors_convert_and_read(void *cli, u8 conv, u8 rd,
46 unsigned int delay, u32 *adc);
47 int ms_sensors_read_serial(struct i2c_client *client, u64 *sn);
48 ssize_t ms_sensors_show_serial(struct ms_ht_dev *dev_data, char *buf);
49 ssize_t ms_sensors_write_resolution(struct ms_ht_dev *dev_data, u8 i);
50 ssize_t ms_sensors_show_battery_low(struct ms_ht_dev *dev_data, char *buf);
51 ssize_t ms_sensors_show_heater(struct ms_ht_dev *dev_data, char *buf);
52 ssize_t ms_sensors_write_heater(struct ms_ht_dev *dev_data,
53 const char *buf, size_t len);
54 int ms_sensors_ht_read_temperature(struct ms_ht_dev *dev_data,
56 int ms_sensors_ht_read_humidity(struct ms_ht_dev *dev_data,
58 int ms_sensors_tp_read_prom(struct ms_tp_dev *dev_data);
59 int ms_sensors_read_temp_and_pressure(struct ms_tp_dev *dev_data,
61 unsigned int *pressure);
63 #endif /* _MS_SENSORS_I2C_H */