Mon, 21 Dec 2015 21:21:16 +0100
Removed LCD auto dim mode, the display is allways on if this program runs.
/***************************************************************************** * Copyright (C) 2015 * * 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 "brewco.h" #include "lcd-pcf8574.h" #include "slcd.h" #include "keyboard.h" /* * 10 Milliseconds counts for a key to be short or long pressed. */ #define PRESS_NORMAL 5 #define PRESS_LONG 200 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_Return = FALSE; int Key_Up = FALSE; int Key_Down = FALSE; int previous_key = KEY_NONE; int keypressed(void); /* * Wait for a key. Return the pressed key. */ int keywait(void) { int key; do { usleep(50000); slcdDummy(slcdHandle); key = keycheck(); if (my_shutdown) return KEY_NONE; } while (key == KEY_NONE); fprintf(stdout, "keywait %d\n", key); return key; } /* * 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 && Key_Return) 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) return KEY_ENTER; if (Key_Return) return KEY_RETURN; return KEY_NONE; } #ifdef HAVE_WIRINGPI_H PI_THREAD (my_keyboard_loop) #else void *my_keyboard_loop(void *threadid) #endif { int Return = 0, Enter = 0, Up = 0, Down = 0; time_t Last = (time_t)0, Now; #ifdef HAVE_WIRINGPI_H pinMode(PANEL_RETURN, INPUT); pinMode(PANEL_ENTER, INPUT); pinMode(PANEL_UP, INPUT); pinMode(PANEL_DOWN, INPUT); #endif syslog(LOG_NOTICE, "Thread my_keyboard_loop started"); if (debug) fprintf(stdout, "Thread my_keyboard_loop started\n"); /* * 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; } else { Enter++; if (Enter > PRESS_NORMAL) Key_Enter = TRUE; } #ifdef HAVE_WIRINGPI_H if (digitalRead(PANEL_RETURN) && ((keys & 0x0002) == 0)) { #else if ((keys & 0x0002) == 0) { #endif Return = 0; Key_Return = FALSE; } else { Return++; if (Return > PRESS_NORMAL) Key_Return = TRUE; } #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; } Now = time(NULL); if (Now != Last) { Last = Now; } /* * Loop 10 milliseconds */ usleep(10000); } syslog(LOG_NOTICE, "Thread my_keyboard_loop stopped"); if (debug) fprintf(stdout, "Thread my_keyboard_loop stopped\n"); return 0; }