--- a/mash/lcd-pcf8574.c Sun Jul 15 14:08:19 2018 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,144 +0,0 @@
-/*
- * 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 "mash.h"
-#include "lcd-pcf8574.h"
-
-
-#ifdef HAVE_WIRINGPI_H
-
-int lcdHandle;
-unsigned char lcdbuf[MAX_LCDS][20][4];
-
-struct lcdDataStruct
-{
- int bits, rows, cols ;
- int rsPin, strbPin ;
- int dataPins [8] ;
- int cx, cy ;
-};
-extern struct lcdDataStruct *lcds [MAX_LCDS];
-
-
-/*
- * Some LCD functions are extended shadow copies of the wiringPi functions.
- * The difference is that the lcdbuf will be updated with the contents on
- * the hardware display. This copy can then be used for a remote display
- */
-
-
-/*
- * setBacklight:
- *********************************************************************************
- */
-
-void setBacklight (int value)
-{
- pinMode (AF_BACKLIGHT, OUTPUT) ;
- digitalWrite (AF_BACKLIGHT, (value & 1)) ;
-}
-
-
-
-/*
- * initLCD:
- *********************************************************************************
- */
-
-int initLCD (int cols, int rows)
-{
- int x, y;
-
- 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 ;
- }
-
- 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) ;
- for (x = 0; x < 20; x++)
- for (y = 0; y < 4; y++)
- lcdbuf[lcdHandle][x][y] = ' ';
-
- setBacklight (1) ;
-
- return 0 ;
-}
-
-
-
-void mb_lcdPutchar(const int fd, unsigned char data)
-{
- struct lcdDataStruct *lcd = lcds[fd];
-
- /*
- * Write to our buffer first, then to the wiringPi driver.
- * Writing to wiringPi updates the cursor position.
- */
- lcdbuf[fd][lcd->cx][lcd->cy] = data;
- lcdPutchar(fd, data);
-}
-
-
-
-void mb_lcdPuts(const int fd, const char *string)
-{
- while (*string)
- mb_lcdPutchar (fd, *string++);
-}
-
-
-
-void mb_lcdClear(const int fd)
-{
- int x, y;
-
- lcdClear(fd);
- for (x = 0; x < 20; x++)
- for (y = 0; y < 4; y++)
- lcdbuf[fd][x][y] = ' ';
-}
-
-
-
-#endif
-