1/*	$NetBSD: bmx280var.h,v 1.1 2022/12/03 01:04:43 brad Exp $	*/
2
3/*
4 * Copyright (c) 2022 Brad Spencer <brad@anduin.eldar.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef _DEV_IC_BMX280VAR_H_
20#define _DEV_IC_BMX280VAR_H_
21
22#define BMX280_NUM_SENSORS	3
23#define BMX280_TEMP_SENSOR 0
24#define BMX280_PRESSURE_SENSOR 1
25#define BMX280_HUMIDITY_SENSOR 2
26
27struct bmx280_calibration_blob {
28	uint16_t dig_T1;
29	int16_t dig_T2;
30	int16_t dig_T3;
31
32	uint16_t dig_P1;
33	int16_t dig_P2;
34	int16_t dig_P3;
35	int16_t dig_P4;
36	int16_t dig_P5;
37	int16_t dig_P6;
38	int16_t dig_P7;
39	int16_t dig_P8;
40	int16_t dig_P9;
41	uint8_t dig_H1;
42	int16_t dig_H2;
43	uint8_t dig_H3;
44	int16_t dig_H4;
45	int16_t dig_H5;
46	int8_t dig_H6;
47};
48
49struct bmx280_sc {
50	int 		sc_bmx280debug;
51	device_t 	sc_dev;
52	i2c_tag_t 	sc_tag;
53	i2c_addr_t 	sc_addr;
54	struct spi_handle *sc_sh;
55	kmutex_t 	sc_mutex;
56	int 		sc_numsensors;
57	struct sysmon_envsys *sc_sme;
58	struct sysctllog *sc_bmx280log;
59	envsys_data_t 	sc_sensors[BMX280_NUM_SENSORS];
60	struct bmx280_calibration_blob	sc_cal_blob;
61	bool		sc_has_humidity;
62	int		sc_readattempts;
63	int		sc_osrs_t;
64	int		sc_osrs_p;
65	int		sc_osrs_h;
66	int		sc_irr_samples;
67	uint8_t		sc_previous_irr;
68	bool		sc_bmx280dump;
69	int		sc_waitfactor_t;
70	int		sc_waitfactor_p;
71	int		sc_waitfactor_h;
72	void		(*sc_func_attach)(struct bmx280_sc *);
73	int		(*sc_func_acquire_bus)(struct bmx280_sc *);
74	void		(*sc_func_release_bus)(struct bmx280_sc *);
75	int		(*sc_func_read_register)(struct bmx280_sc *, uint8_t, uint8_t *, size_t);
76	int		(*sc_func_write_register)(struct bmx280_sc *, uint8_t *, size_t);
77};
78
79struct bmx280_sensor {
80	const char     *desc;
81	enum envsys_units type;
82};
83
84struct bmx280_osrs_list {
85	const int	text;
86	uint8_t		mask;
87};
88
89struct bmx280_irr_list {
90	const int	text;
91	uint8_t		mask;
92};
93
94#endif
95