Fri, 05 Apr 2024 16:19:39 +0200
Version 0.9.17a1. Revised starting and stopping the threads. Fixed stopping the command server thread. Moved one-wire tempeature sensors resolution correction to the one-wire thread. The devices thread fetches temperatures from the one-wire thread. The one-wire thread does everything for the temperature sensors. The command server uses private sockets. Still, only one session at the same time is handled.
/* * lcd-pcf8574.c: * Text-based LCD driver library code * This is designed to drive the HD44780U LCD display connected via * a "LCM1602 IIC A0 A1 A2" board with a PCF8574 I2C controller. * * Copyright (c) 2012-2013 Gordon Henderson. * Copyright (c) 2014 Michiel Broek. *********************************************************************** * * mbsePi is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * mbsePi 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with wiringPi. If not, see <http://www.gnu.org/licenses/>. *********************************************************************** */ #include "thermferm.h" #include "lcd-pcf8574.h" #include "slcd.h" int lcdHandle; int slcdHandle; #ifdef HAVE_WIRINGPI_H struct lcdDataStruct { int bits, rows, cols ; int rsPin, strbPin ; int dataPins [8] ; int cx, cy ; }; extern struct lcdDataStruct *lcds [MAX_LCDS]; #endif extern sys_config Config; extern uint16_t leds; /* * setBacklight: ********************************************************************************* */ void setBacklight(int value) { #ifdef HAVE_WIRINGPI_H pinMode (AF_BACKLIGHT, OUTPUT) ; digitalWrite (AF_BACKLIGHT, (value & 1)) ; #endif if (value) { leds |= SLED_LCD; } else { leds &= ~SLED_LCD; } slcdLEDs(slcdHandle); } /* * initLCD: ********************************************************************************* */ int initLCD(int cols, int rows) { if (!((rows == 1) || (rows == 2) || (rows == 4))) { fprintf (stderr, "rows must be 1, 2 or 4\n") ; return EXIT_FAILURE ; } if (!((cols == 16) || (cols == 20))) { fprintf (stderr, "cols must be 16 or 20\n") ; return EXIT_FAILURE ; } #ifdef HAVE_WIRINGPI_H pcf8574Setup(AF_BASE, 0x27) ; pinMode (AF_RW, OUTPUT) ; digitalWrite (AF_RW, LOW) ; // Not used with wiringPi - always in write mode /* * The other control pins are initialised with lcdInit () */ lcdHandle = lcdInit (rows, cols, 4, AF_RS, AF_E, AF_DB4, AF_DB5, AF_DB6, AF_DB7, 0, 0, 0, 0) ; if (lcdHandle < 0) { fprintf (stderr, "lcdInit failed\n") ; return -1 ; } lcdClear (lcdHandle) ; #endif slcdHandle = slcdInit(0, rows, cols); if (slcdHandle < 0) { fprintf (stderr, "slcdInit failed\n") ; return -1; } slcdClear(slcdHandle); setBacklight(1); return 0 ; }