Sat, 16 May 2015 17:39:30 +0200
Made the client-server protocol more robust. When a change to a unit is made using the web interface, the main process is stopped during the update. Splitted the PID in two PID's, one for heating and one for cooling. Adjusted the web edit scrreen for this, but there are still rough edges. Replaced the PID code, maybe this one works better for our purpose. The simulator air temperature changes on the simulator heater and cooler, but it is not realistic at all. This is a development version, do not use in production. The version is 0.3.0
197 | 1 | /***************************************************************************** |
2 | * Copyright (C) 2014 | |
3 | * | |
4 | * Michiel Broek <mbroek at mbse dot eu> | |
5 | * | |
6 | * This file is part of the mbsePi-apps | |
7 | * | |
8 | * This is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * mbsePi-apps is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with ThermFerm; see the file COPYING. If not, write to the Free | |
20 | * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
21 | *****************************************************************************/ | |
22 | ||
23 | #include "thermferm.h" | |
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24 | #include "lcd-pcf8574.h" |
197 | 25 | #include "panel.h" |
26 | ||
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27 | |
197 | 28 | #ifdef HAVE_WIRINGPI_H |
29 | ||
30 | ||
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31 | /* |
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32 | * 10 Milliseconds counts for a key to be short or long pressed. |
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33 | */ |
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34 | #define PRESS_NORMAL 5 |
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35 | #define PRESS_LONG 200 |
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36 | |
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37 | /* |
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38 | * LCD timeout in seconds |
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39 | */ |
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40 | #define LCD_SLEEP 120 |
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41 | |
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42 | /* |
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43 | * Menu timeout in seconds |
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44 | */ |
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45 | #define MENU_TIMEOUT 60 |
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46 | |
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47 | |
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48 | |
199 | 49 | extern int my_shutdown; |
50 | extern int debug; | |
205 | 51 | extern int setupmenu; |
199 | 52 | |
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53 | int Key_Enter = FALSE; |
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54 | int Key_Enter_Long = FALSE; |
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55 | int Key_Up = FALSE; |
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56 | int Key_Down = FALSE; |
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57 | |
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58 | int previous_key = KEY_NONE; |
205 | 59 | int menutimer = 0; |
60 | ||
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61 | |
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62 | int keypressed(void); |
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63 | |
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64 | |
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65 | /* |
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66 | * Check for a key. Return last pressed key or none. |
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67 | */ |
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68 | int keycheck(void) |
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69 | { |
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70 | int key, retkey = KEY_NONE; |
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71 | |
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72 | key = keypressed(); |
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73 | if ((key == KEY_NONE) && (previous_key != KEY_NONE)) { |
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74 | retkey = previous_key; |
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75 | } |
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76 | |
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77 | previous_key = key; |
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78 | return retkey; |
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79 | } |
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80 | |
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81 | |
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82 | |
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83 | int keypressed(void) |
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84 | { |
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85 | if (Key_Enter && Key_Up && Key_Down) |
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86 | return KEY_ALL; |
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87 | if (Key_Up && Key_Down) |
205 | 88 | return KEY_ESCAPE; |
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89 | if (Key_Up) |
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90 | return KEY_UP; |
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91 | if (Key_Down) |
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92 | return KEY_DOWN; |
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93 | if (Key_Enter_Long) |
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94 | return KEY_CONFIRM; |
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95 | if (Key_Enter) |
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96 | return KEY_ENTER; |
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97 | return KEY_NONE; |
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98 | } |
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99 | |
199 | 100 | |
101 | ||
102 | PI_THREAD (my_panel_loop) | |
103 | { | |
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104 | int Enter = 0, Up = 0, Down = 0, Backlight = LCD_SLEEP, AnyKey = FALSE; |
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105 | time_t Last = (time_t)0, Now; |
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106 | |
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107 | pinMode(PANEL_LED, OUTPUT); |
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108 | pinMode(PANEL_ENTER, INPUT); |
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109 | pinMode(PANEL_UP, INPUT); |
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110 | pinMode(PANEL_DOWN, INPUT); |
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111 | |
199 | 112 | syslog(LOG_NOTICE, "Thread my_panel_loop started"); |
113 | ||
114 | /* | |
115 | * Loop forever until the external shutdown variable is set. | |
116 | */ | |
117 | for (;;) { | |
118 | if (my_shutdown) | |
119 | break; | |
120 | ||
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121 | if (digitalRead(PANEL_ENTER)) { |
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122 | Enter = 0; |
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123 | Key_Enter = FALSE; |
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124 | Key_Enter_Long = FALSE; |
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125 | } else { |
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126 | Enter++; |
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127 | if (Enter > PRESS_NORMAL) |
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128 | Key_Enter = TRUE; |
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129 | if (Enter > PRESS_LONG) |
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130 | Key_Enter_Long = TRUE; |
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131 | if (Enter == PRESS_LONG) |
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132 | digitalWrite(PANEL_LED, 1); |
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133 | if (Enter == (PRESS_LONG + 10)) |
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134 | digitalWrite(PANEL_LED, 0); |
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135 | } |
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136 | |
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137 | if (digitalRead(PANEL_UP)) { |
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138 | Up = 0; |
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139 | Key_Up = FALSE; |
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140 | } else { |
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141 | Up++; |
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142 | if (Up > PRESS_NORMAL) |
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143 | Key_Up = TRUE; |
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144 | } |
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145 | |
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146 | if (digitalRead(PANEL_DOWN)) { |
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147 | Down = 0; |
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148 | Key_Down = FALSE; |
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149 | } else { |
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150 | Down++; |
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151 | if (Down > PRESS_NORMAL) |
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152 | Key_Down = TRUE; |
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153 | } |
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154 | |
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155 | if (Key_Enter || Key_Up || Key_Down) { |
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156 | AnyKey = TRUE; |
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157 | /* |
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158 | * Any key is pressed. |
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159 | */ |
241
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160 | piLock(LOCK_LCD); |
228
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161 | setBacklight(1); |
241
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162 | piUnlock(LOCK_LCD); |
200
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163 | Backlight = LCD_SLEEP; |
205 | 164 | menutimer = 0; |
200
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165 | } else { |
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166 | /* |
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167 | * No key pressed. |
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168 | */ |
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169 | AnyKey = FALSE; |
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170 | } |
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171 | |
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172 | Now = time(NULL); |
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173 | if (Now != Last) { |
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174 | Last = Now; |
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175 | |
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176 | if (AnyKey == FALSE) { |
241
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177 | if (Backlight == 1) { |
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178 | piLock(LOCK_LCD); |
200
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179 | setBacklight(0); |
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180 | piUnlock(LOCK_LCD); |
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181 | } |
200
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182 | if (Backlight > 0) { |
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183 | Backlight--; |
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184 | } |
205 | 185 | |
244
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186 | piLock(LOCK_MENU); |
205 | 187 | if (setupmenu != MENU_NONE) { |
188 | if (menutimer < MENU_TIMEOUT) | |
189 | menutimer++; | |
238 | 190 | else { |
205 | 191 | setupmenu = MENU_NONE; |
238 | 192 | } |
205 | 193 | } |
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194 | piUnlock(LOCK_MENU); |
200
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195 | } |
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196 | } |
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197 | |
199 | 198 | /* |
199 | * Loop 10 milliseconds | |
200 | */ | |
201 | usleep(10000); | |
202 | } | |
203 | ||
204 | syslog(LOG_NOTICE, "Thread my_panel_loop stopped"); | |
205 | return 0; | |
206 | } | |
197 | 207 | |
208 | ||
209 | #endif |