1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) ST-Ericsson 2010 - 2013
4 * Author: Martin Persson <martin.persson@stericsson.com>
5 * Hongbo Zhang <hongbo.zhang@linaro.com>
6 */
7
8 #ifndef _ABX500_H
9 #define _ABX500_H
10
11 #define NUM_SENSORS 5
12
13 struct abx500_temp;
14
15 /*
16 * struct abx500_temp_ops - abx500 chip specific ops
17 * @read_sensor: reads gpadc output
18 * @irq_handler: irq handler
19 * @show_name: hwmon device name
20 * @show_label: hwmon attribute label
21 * @is_visible: is attribute visible
22 */
23 struct abx500_temp_ops {
24 int (*read_sensor)(struct abx500_temp *, u8, int *);
25 int (*irq_handler)(int, struct abx500_temp *);
26 ssize_t (*show_name)(struct device *,
27 struct device_attribute *, char *);
28 ssize_t (*show_label) (struct device *,
29 struct device_attribute *, char *);
30 int (*is_visible)(struct attribute *, int);
31 };
32
33 /*
34 * struct abx500_temp - representation of temp mon device
35 * @pdev: platform device
36 * @hwmon_dev: hwmon device
37 * @ops: abx500 chip specific ops
38 * @gpadc_addr: gpadc channel address
39 * @min: sensor temperature min value
40 * @max: sensor temperature max value
41 * @max_hyst: sensor temperature hysteresis value for max limit
42 * @min_alarm: sensor temperature min alarm
43 * @max_alarm: sensor temperature max alarm
44 * @work: delayed work scheduled to monitor temperature periodically
45 * @work_active: True if work is active
46 * @lock: mutex
47 * @monitored_sensors: number of monitored sensors
48 * @plat_data: private usage, usually points to platform specific data
49 */
50 struct abx500_temp {
51 struct platform_device *pdev;
52 struct device *hwmon_dev;
53 struct abx500_temp_ops ops;
54 u8 gpadc_addr[NUM_SENSORS];
55 unsigned long min[NUM_SENSORS];
56 unsigned long max[NUM_SENSORS];
57 unsigned long max_hyst[NUM_SENSORS];
58 bool min_alarm[NUM_SENSORS];
59 bool max_alarm[NUM_SENSORS];
60 struct delayed_work work;
61 bool work_active;
62 struct mutex lock;
63 int monitored_sensors;
64 void *plat_data;
65 };
66
67 int abx500_hwmon_init(struct abx500_temp *data);
68
69 #endif /* _ABX500_H */