power: smb349: add callback to update charger
[linux-2.6.git] / include / linux / nct1008.h
1 /*
2  * include/linux/nct1008.h
3  *
4  * NCT1008, temperature monitoring device from ON Semiconductors
5  *
6  * Copyright (c) 2010, NVIDIA Corporation.
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful, but WITHOUT
14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
16  * more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with this program; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21  */
22
23 #ifndef _LINUX_NCT1008_H
24 #define _LINUX_NCT1008_H
25
26 #include <linux/types.h>
27
28 #include <mach/edp.h>
29
30 #define MAX_ZONES       16
31
32 struct nct1008_data;
33
34 struct nct1008_platform_data {
35         bool supported_hwrev;
36         bool ext_range;
37         u8 conv_rate;
38         u8 offset;
39         u8 hysteresis;
40         s8 shutdown_ext_limit;
41         s8 shutdown_local_limit;
42         s8 throttling_ext_limit;
43         s8 thermal_zones[MAX_ZONES];
44         u8 thermal_zones_sz;
45         void (*alarm_fn)(bool raised);
46         void (*probe_callback)(struct nct1008_data *);
47 };
48
49 struct nct1008_data {
50         struct workqueue_struct *workqueue;
51         struct work_struct work;
52         struct i2c_client *client;
53         struct nct1008_platform_data plat_data;
54         struct mutex mutex;
55         struct dentry *dent;
56         u8 config;
57         s8 *limits;
58         u8 limits_sz;
59         void (*alarm_fn)(bool raised);
60         struct regulator *nct_reg;
61         long current_lo_limit;
62         long current_hi_limit;
63         int conv_period_ms;
64
65         void (*alert_func)(void *);
66         void *alert_data;
67 };
68
69 #ifdef CONFIG_SENSORS_NCT1008
70 int nct1008_thermal_get_temp(struct nct1008_data *data, long *temp);
71 int nct1008_thermal_get_temp_low(struct nct1008_data *data, long *temp);
72 int nct1008_thermal_set_limits(struct nct1008_data *data,
73                                 long lo_limit_milli,
74                                 long hi_limit_milli);
75 int nct1008_thermal_set_alert(struct nct1008_data *data,
76                                 void (*alert_func)(void *),
77                                 void *alert_data);
78 int nct1008_thermal_set_shutdown_temp(struct nct1008_data *data,
79                                         long shutdown_temp);
80 #else
81 static inline int nct1008_thermal_get_temp(struct nct1008_data *data,
82                                                 long *temp)
83 { return -EINVAL; }
84 static inline int nct1008_thermal_get_temp_low(struct nct1008_data *data,
85                                                 long *temp)
86 { return -EINVAL; }
87 static inline int nct1008_thermal_set_limits(struct nct1008_data *data,
88                                 long lo_limit_milli,
89                                 long hi_limit_milli)
90 { return -EINVAL; }
91 static inline int nct1008_thermal_set_alert(struct nct1008_data *data,
92                                 void (*alert_func)(void *),
93                                 void *alert_data)
94 { return -EINVAL; }
95 static inline int nct1008_thermal_set_shutdown_temp(struct nct1008_data *data,
96                                         long shutdown_temp)
97 { return -EINVAL; }
98 #endif
99
100 #endif /* _LINUX_NCT1008_H */