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TOMOYO Linux Cross Reference
Linux/tools/thermal/tmon/tmon.h

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  1 /*
  2  * tmon.h contains data structures and constants used by TMON
  3  *
  4  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  5  *
  6  * This program is free software; you can redistribute it and/or
  7  * modify it under the terms of the GNU General Public License version
  8  * 2 or later as published by the Free Software Foundation.
  9  *
 10  * This program is distributed in the hope that it will be useful,
 11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13  * GNU General Public License for more details.
 14  *
 15  * Author Name Jacob Pan <jacob.jun.pan@linux.intel.com>
 16  *
 17  */
 18 
 19 #ifndef TMON_H
 20 #define TMON_H
 21 
 22 #define MAX_DISP_TEMP 125
 23 #define MAX_CTRL_TEMP 105
 24 #define MIN_CTRL_TEMP 40
 25 #define MAX_NR_TZONE 16
 26 #define MAX_NR_CDEV 32
 27 #define MAX_NR_TRIP 16
 28 #define MAX_NR_CDEV_TRIP 12 /* number of cooling devices that can bind
 29                              * to a thermal zone trip.
 30                              */
 31 #define MAX_TEMP_KC 140000
 32 /* starting char position to draw sensor data, such as tz names
 33  * trip point list, etc.
 34  */
 35 #define DATA_LEFT_ALIGN 10
 36 #define NR_LINES_TZDATA 1
 37 #define TMON_LOG_FILE "/var/tmp/tmon.log"
 38 
 39 extern unsigned long ticktime;
 40 extern double time_elapsed;
 41 extern unsigned long target_temp_user;
 42 extern int dialogue_on;
 43 extern char ctrl_cdev[];
 44 extern pthread_mutex_t input_lock;
 45 extern int tmon_exit;
 46 extern int target_thermal_zone;
 47 /* use fixed size record to simplify data processing and transfer
 48  * TBD: more info to be added, e.g. programmable trip point data.
 49 */
 50 struct thermal_data_record {
 51         struct timeval tv;
 52         unsigned long temp[MAX_NR_TZONE];
 53         double pid_out_pct;
 54 };
 55 
 56 struct cdev_info {
 57         char type[64];
 58         int instance;
 59         unsigned long max_state;
 60         unsigned long cur_state;
 61         unsigned long flag;
 62 };
 63 
 64 enum trip_type {
 65         THERMAL_TRIP_CRITICAL,
 66         THERMAL_TRIP_HOT,
 67         THERMAL_TRIP_PASSIVE,
 68         THERMAL_TRIP_ACTIVE,
 69         NR_THERMAL_TRIP_TYPE,
 70 };
 71 
 72 struct trip_point {
 73         enum trip_type type;
 74         unsigned long temp;
 75         unsigned long hysteresis;
 76         int attribute; /* programmability etc. */
 77 };
 78 
 79 /* thermal zone configuration information, binding with cooling devices could
 80  * change at runtime.
 81  */
 82 struct tz_info {
 83         char type[256]; /* e.g. acpitz */
 84         int instance;
 85         int passive; /* active zone has passive node to force passive mode */
 86         int nr_cdev; /* number of cooling device binded */
 87         int nr_trip_pts;
 88         struct trip_point tp[MAX_NR_TRIP];
 89         unsigned long cdev_binding; /* bitmap for attached cdevs */
 90         /* cdev bind trip points, allow one cdev bind to multiple trips */
 91         unsigned long trip_binding[MAX_NR_CDEV];
 92 };
 93 
 94 struct tmon_platform_data {
 95         int nr_tz_sensor;
 96         int nr_cooling_dev;
 97         /* keep track of instance ids since there might be gaps */
 98         int max_tz_instance;
 99         int max_cdev_instance;
100         struct tz_info *tzi;
101         struct cdev_info *cdi;
102 };
103 
104 struct control_ops {
105         void (*set_ratio)(unsigned long ratio);
106         unsigned long (*get_ratio)(unsigned long ratio);
107 
108 };
109 
110 enum cdev_types {
111         CDEV_TYPE_PROC,
112         CDEV_TYPE_FAN,
113         CDEV_TYPE_MEM,
114         CDEV_TYPE_NR,
115 };
116 
117 /* REVISIT: the idea is to group sensors if possible, e.g. on intel mid
118  * we have "skin0", "skin1", "sys", "msicdie"
119  * on DPTF enabled systems, we might have PCH, TSKN, TAMB, etc.
120  */
121 enum tzone_types {
122         TZONE_TYPE_ACPI,
123         TZONE_TYPE_PCH,
124         TZONE_TYPE_NR,
125 };
126 
127 /* limit the output of PID controller adjustment */
128 #define LIMIT_HIGH (95)
129 #define LIMIT_LOW  (2)
130 
131 struct pid_params {
132         double kp;  /* Controller gain from Dialog Box */
133         double ki;  /* Time-constant for I action from Dialog Box */
134         double kd;  /* Time-constant for D action from Dialog Box */
135         double ts;
136         double k_lpf;
137 
138         double t_target;
139         double y_k;
140 };
141 
142 extern int init_thermal_controller(void);
143 extern void controller_handler(const double xk, double *yk);
144 
145 extern struct tmon_platform_data ptdata;
146 extern struct pid_params p_param;
147 
148 extern FILE *tmon_log;
149 extern int cur_thermal_record; /* index to the trec array */
150 extern struct thermal_data_record trec[];
151 extern const char *trip_type_name[];
152 extern unsigned long no_control;
153 
154 extern void initialize_curses(void);
155 extern void show_controller_stats(char *line);
156 extern void show_title_bar(void);
157 extern void setup_windows(void);
158 extern void disable_tui(void);
159 extern void show_sensors_w(void);
160 extern void show_data_w(void);
161 extern void write_status_bar(int x, char *line);
162 extern void show_control_w();
163 
164 extern void show_cooling_device(void);
165 extern void show_dialogue(void);
166 extern int update_thermal_data(void);
167 
168 extern int probe_thermal_sysfs(void);
169 extern void free_thermal_data(void);
170 extern  void resize_handler(int sig);
171 extern void set_ctrl_state(unsigned long state);
172 extern void get_ctrl_state(unsigned long *state);
173 extern void *handle_tui_events(void *arg);
174 extern int sysfs_set_ulong(char *path, char *filename, unsigned long val);
175 extern int zone_instance_to_index(int zone_inst);
176 extern void close_windows(void);
177 
178 #define PT_COLOR_DEFAULT    1
179 #define PT_COLOR_HEADER_BAR 2
180 #define PT_COLOR_ERROR      3
181 #define PT_COLOR_RED        4
182 #define PT_COLOR_YELLOW     5
183 #define PT_COLOR_GREEN      6
184 #define PT_COLOR_BRIGHT     7
185 #define PT_COLOR_BLUE       8
186 
187 /* each thermal zone uses 12 chars, 8 for name, 2 for instance, 2 space
188  * also used to list trip points in forms of AAAC, which represents
189  * A: Active
190  * C: Critical
191  */
192 #define TZONE_RECORD_SIZE 12
193 #define TZ_LEFT_ALIGN 32
194 #define CDEV_NAME_SIZE 20
195 #define CDEV_FLAG_IN_CONTROL (1 << 0)
196 
197 /* dialogue box starts */
198 #define DIAG_X 48
199 #define DIAG_Y 8
200 #define THERMAL_SYSFS "/sys/class/thermal"
201 #define CDEV "cooling_device"
202 #define TZONE "thermal_zone"
203 #define TDATA_LEFT 16
204 #endif /* TMON_H */
205 

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