Sat, 25 Apr 2020 20:31:31 +0200
Version 0.9.8. Added extra path to the fonts for Debian buster. Changed the PID to work on Proportional on Measurement. Added loops so that it looks like the PID is running at 100 mSec intervals.
/***************************************************************************** * Copyright (C) 2014 * * Michiel Broek <mbroek at mbse dot eu> * * This file is part of the mbsePi-apps * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * mbsePi-apps is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with ThermFerm; see the file COPYING. If not, write to the Free * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *****************************************************************************/ #include "thermferm.h" #include "lcd-pcf8574.h" #include "slcd.h" #include "panel.h" /* * 10 Milliseconds counts for a key to be short or long pressed. */ #define PRESS_NORMAL 5 #define PRESS_LONG 200 /* * LCD timeout in seconds */ #define LCD_SLEEP 120 /* * Menu timeout in seconds */ #define MENU_TIMEOUT 60 extern int my_shutdown; extern int debug; extern int setupmenu; extern uint16_t keys; extern uint16_t leds; extern int slcdHandle; int Key_Enter = FALSE; int Key_Enter_Long = FALSE; int Key_Up = FALSE; int Key_Down = FALSE; int previous_key = KEY_NONE; int menutimer = 0; int keypressed(void); /* * Check for a key. Return last pressed key or none. */ int keycheck(void) { int key, retkey = KEY_NONE; key = keypressed(); if ((key == KEY_NONE) && (previous_key != KEY_NONE)) { retkey = previous_key; } previous_key = key; return retkey; } int keypressed(void) { if (Key_Enter && Key_Up && Key_Down) return KEY_ALL; if (Key_Up && Key_Down) return KEY_ESCAPE; if (Key_Up) return KEY_UP; if (Key_Down) return KEY_DOWN; if (Key_Enter_Long) return KEY_CONFIRM; if (Key_Enter) return KEY_ENTER; return KEY_NONE; } #ifdef HAVE_WIRINGPI_H PI_THREAD (my_panel_loop) #else void *my_panel_loop(void *threadid) #endif { int Enter = 0, Up = 0, Down = 0, Backlight = LCD_SLEEP, AnyKey = FALSE; time_t Last = (time_t)0, Now; #ifdef HAVE_WIRINGPI_H pinMode(PANEL_LED, OUTPUT); pinMode(PANEL_ENTER, INPUT); pinMode(PANEL_UP, INPUT); pinMode(PANEL_DOWN, INPUT); #endif syslog(LOG_NOTICE, "Thread my_panel_loop started"); /* * Loop forever until the external shutdown variable is set. */ for (;;) { if (my_shutdown) break; #ifdef HAVE_WIRINGPI_H if (digitalRead(PANEL_ENTER) && ((keys & 0x0001) == 0)) { #else if ((keys & 0x0001) == 0) { #endif Enter = 0; Key_Enter = FALSE; Key_Enter_Long = FALSE; } else { Enter++; if (Enter > PRESS_NORMAL) Key_Enter = TRUE; if (Enter > PRESS_LONG) Key_Enter_Long = TRUE; if (Enter == PRESS_LONG) { #ifdef HAVE_WIRINGPI_H digitalWrite(PANEL_LED, 1); #endif leds |= SLED_TFLED; slcdLEDs(slcdHandle); } if (Enter == (PRESS_LONG + 10)) { #ifdef HAVE_WIRINGPI_H digitalWrite(PANEL_LED, 0); #endif leds &= ~SLED_TFLED; slcdLEDs(slcdHandle); } } #ifdef HAVE_WIRINGPI_H if (digitalRead(PANEL_UP) && ((keys & 0x0008) == 0)) { #else if ((keys & 0x0008) == 0) { #endif Up = 0; Key_Up = FALSE; } else { Up++; if (Up > PRESS_NORMAL) Key_Up = TRUE; } #ifdef HAVE_WIRINGPI_H if (digitalRead(PANEL_DOWN) && ((keys & 0x0004) == 0)) { #else if ((keys & 0x0004) == 0) { #endif Down = 0; Key_Down = FALSE; } else { Down++; if (Down > PRESS_NORMAL) Key_Down = TRUE; } if (Key_Enter || Key_Up || Key_Down) { AnyKey = TRUE; /* * Any key is pressed. */ #ifdef HAVE_WIRINGPI_H piLock(LOCK_LCD); #endif setBacklight(1); #ifdef HAVE_WIRINGPI_H piUnlock(LOCK_LCD); #endif Backlight = LCD_SLEEP; menutimer = 0; } else { /* * No key pressed. */ AnyKey = FALSE; } Now = time(NULL); if (Now != Last) { Last = Now; if (AnyKey == FALSE) { if (Backlight == 1) { #ifdef HAVE_WIRINGPI_H piLock(LOCK_LCD); #endif setBacklight(0); #ifdef HAVE_WIRINGPI_H piUnlock(LOCK_LCD); #endif } if (Backlight > 0) { Backlight--; } #ifdef HAVE_WIRINGPI_H piLock(LOCK_MENU); #endif if (setupmenu != MENU_NONE) { if (menutimer < MENU_TIMEOUT) menutimer++; else { setupmenu = MENU_NONE; } } #ifdef HAVE_WIRINGPI_H piUnlock(LOCK_MENU); #endif } } /* * Loop 10 milliseconds */ usleep(10000); } syslog(LOG_NOTICE, "Thread my_panel_loop stopped"); return 0; }