Sun, 10 Aug 2014 12:09:07 +0200
Fixed LCD display updates. Better key routines.
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 | ||
199 | 31 | extern int my_shutdown; |
32 | extern int debug; | |
33 | ||
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34 | int Key_Enter = FALSE; |
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35 | int Key_Enter_Long = FALSE; |
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36 | int Key_Up = FALSE; |
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37 | int Key_Down = FALSE; |
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38 | |
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39 | int previous_key = KEY_NONE; |
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40 | |
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41 | |
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42 | |
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43 | /* |
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44 | * Check for a key. Return last pressed key or none. |
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45 | */ |
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46 | int keycheck(void) |
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47 | { |
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48 | int key, retkey = KEY_NONE; |
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49 | |
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50 | key = keypressed(); |
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51 | if ((key == KEY_NONE) && (previous_key != KEY_NONE)) { |
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52 | retkey = previous_key; |
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53 | } |
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54 | |
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55 | previous_key = key; |
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56 | return retkey; |
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57 | } |
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58 | |
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59 | |
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60 | |
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61 | int keypressed(void) |
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62 | { |
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63 | if (Key_Enter && Key_Up && Key_Down) |
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64 | return KEY_ALL; |
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65 | if (Key_Up && Key_Down) |
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66 | return KEY_UPDOWN; |
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67 | if (Key_Up) |
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68 | return KEY_UP; |
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69 | if (Key_Down) |
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70 | return KEY_DOWN; |
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71 | if (Key_Enter_Long) |
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72 | return KEY_CONFIRM; |
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73 | if (Key_Enter) |
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74 | return KEY_ENTER; |
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75 | return KEY_NONE; |
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76 | } |
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77 | |
199 | 78 | |
79 | ||
80 | PI_THREAD (my_panel_loop) | |
81 | { | |
200
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82 | int Enter = 0, Up = 0, Down = 0, Backlight = LCD_SLEEP, AnyKey = FALSE; |
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83 | time_t Last = (time_t)0, Now; |
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84 | |
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85 | pinMode(PANEL_LED, OUTPUT); |
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86 | pinMode(PANEL_ENTER, INPUT); |
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87 | pinMode(PANEL_UP, INPUT); |
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88 | pinMode(PANEL_DOWN, INPUT); |
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89 | |
199 | 90 | |
91 | syslog(LOG_NOTICE, "Thread my_panel_loop started"); | |
92 | if (debug) | |
93 | fprintf(stdout, "Thread my_panel_loop started\n"); | |
94 | ||
95 | /* | |
96 | * Loop forever until the external shutdown variable is set. | |
97 | */ | |
98 | for (;;) { | |
99 | if (my_shutdown) | |
100 | break; | |
101 | ||
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102 | if (digitalRead(PANEL_ENTER)) { |
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103 | Enter = 0; |
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104 | Key_Enter = FALSE; |
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105 | Key_Enter_Long = FALSE; |
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106 | } else { |
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107 | Enter++; |
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108 | if (Enter > PRESS_NORMAL) |
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109 | Key_Enter = TRUE; |
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110 | if (Enter > PRESS_LONG) |
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111 | Key_Enter_Long = TRUE; |
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112 | } |
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113 | |
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114 | if (digitalRead(PANEL_UP)) { |
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115 | Up = 0; |
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116 | Key_Up = FALSE; |
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117 | } else { |
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118 | Up++; |
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119 | if (Up > PRESS_NORMAL) |
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120 | Key_Up = TRUE; |
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121 | } |
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122 | |
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123 | if (digitalRead(PANEL_DOWN)) { |
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124 | Down = 0; |
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125 | Key_Down = FALSE; |
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126 | } else { |
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127 | Down++; |
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128 | if (Down > PRESS_NORMAL) |
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129 | Key_Down = TRUE; |
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130 | } |
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131 | |
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132 | if (Key_Enter || Key_Up || Key_Down) { |
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133 | AnyKey = TRUE; |
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134 | /* |
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135 | * Any key is pressed. |
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136 | */ |
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137 | if (Backlight == 0) |
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138 | setBacklight(1); |
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139 | Backlight = LCD_SLEEP; |
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140 | } else { |
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141 | /* |
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142 | * No key pressed. |
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143 | */ |
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144 | AnyKey = FALSE; |
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145 | } |
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146 | |
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147 | // if (debug && AnyKey) |
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148 | // fprintf(stdout, "keys Enter=%d,%s,%s Up=%d,%s Down=%d,%s\n", |
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149 | // Enter, Key_Enter ?"True":"False", Key_Enter_Long ?"True":"False", Up, Key_Up ?"True":"False", Down, Key_Down ?"True":"False"); |
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150 | |
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151 | Now = time(NULL); |
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152 | if (Now != Last) { |
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153 | Last = Now; |
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154 | |
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155 | // if (debug) |
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156 | // fprintf(stdout, "AnyKey=%s Backlight=%d\n", AnyKey ?"True":"False", Backlight); |
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157 | if (AnyKey == FALSE) { |
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158 | if (Backlight == 1) |
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159 | setBacklight(0); |
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160 | if (Backlight > 0) { |
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161 | Backlight--; |
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162 | } |
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163 | } |
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164 | |
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165 | } |
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166 | |
199 | 167 | /* |
168 | * Loop 10 milliseconds | |
169 | */ | |
170 | usleep(10000); | |
171 | } | |
172 | ||
173 | syslog(LOG_NOTICE, "Thread my_panel_loop stopped"); | |
174 | if (debug) | |
175 | fprintf(stdout, "Thread my_panel_loop stopped\n"); | |
176 | ||
177 | return 0; | |
178 | } | |
197 | 179 | |
180 | ||
181 | #endif |