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-rw-r--r--drv_LW_ABP.c343
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diff --git a/drv_LW_ABP.c b/drv_LW_ABP.c
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+/* $Id$
+ * $URL$
+ *
+ * driver for Logic Way GmbH ABP08 (serial) and ABP09 (USB) appliance control panels
+ * http://www.logicway.de/pages/mde-hardware.shtml#ABP.AMC
+ *
+ * Copyright (C) 2009 Arndt Kritzner <kritzner@logicway.de>
+ * Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
+ * Copyright (C) 2005, 2006, 2007, 2009 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux 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.
+ *
+ * LCD4Linux 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*
+ *
+ * exported fuctions:
+ *
+ * struct DRIVER drv_LW_ABP
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include "debug.h"
+#include "cfg.h"
+#include "qprintf.h"
+#include "udelay.h"
+#include "plugin.h"
+#include "widget.h"
+#include "widget_text.h"
+#include "widget_icon.h"
+#include "widget_bar.h"
+#include "drv.h"
+
+/* text mode display? */
+#include "drv_generic_text.h"
+
+/* serial port? */
+#include "drv_generic_serial.h"
+
+/* i2c bus? */
+#ifdef WITH_I2C
+#include "drv_generic_i2c.h"
+#endif
+
+
+static char Name[] = "LW_ABP";
+
+
+/****************************************/
+/*** hardware dependant functions ***/
+/****************************************/
+
+static int drv_LW_ABP_open(const char *section)
+{
+ /* open serial port */
+ /* don't mind about device, speed and stuff, this function will take care of */
+
+ if (drv_generic_serial_open(section, Name, 0) < 0)
+ return -1;
+
+ return 0;
+}
+
+
+static int drv_LW_ABP_close(void)
+{
+ drv_generic_serial_close();
+
+ return 0;
+}
+
+
+/* dummy function that sends something to the display */
+static void drv_LW_ABP_send(const char *data, const unsigned int len)
+{
+ /* send data to the serial port is easy... */
+ drv_generic_serial_write(data, len);
+}
+
+
+/* text mode displays only */
+static void drv_LW_ABP_clear(void)
+{
+ char cmd[] = "lcd init\r\n";
+
+ /* do whatever is necessary to clear the display */
+ drv_LW_ABP_send(cmd, strlen(cmd));
+}
+
+
+/* text mode displays only */
+static void drv_LW_ABP_write(const int row, const int col, const char *data, int len)
+{
+ char cmd[] = "lcd set line ";
+ char row_[5];
+ char col_[5];
+
+ /* do the cursor positioning here */
+ drv_LW_ABP_send(cmd, strlen(cmd));
+ sprintf(row_, "%d", row + 1);
+ drv_LW_ABP_send(row_, strlen(row_));
+ if (col > 0) {
+ drv_LW_ABP_send(",", 1);
+ sprintf(col_, "%d", col + 1);
+ drv_LW_ABP_send(col_, strlen(col_));
+ }
+ drv_LW_ABP_send(" ", 1);
+
+ /* send string to the display */
+ drv_LW_ABP_send(data, len);
+ drv_LW_ABP_send("\r\n", 2);
+
+}
+
+/* text mode displays only */
+static void drv_LW_ABP_defchar(const int ascii, const unsigned char *matrix)
+{
+}
+
+/* example function used in a plugin */
+static int drv_LW_ABP_contrast(int contrast)
+{
+ char cmd[2];
+
+ /* adjust limits according to the display */
+ if (contrast < 0)
+ contrast = 0;
+ if (contrast > 255)
+ contrast = 255;
+
+ /* call a 'contrast' function */
+ /* assume 0x04 to be the 'set contrast' command */
+ cmd[0] = 0x04;
+ cmd[1] = contrast;
+ drv_LW_ABP_send(cmd, 2);
+
+ return contrast;
+}
+
+
+/* start text mode display */
+static int drv_LW_ABP_start(const char *section)
+{
+ int contrast;
+ int rows = -1, cols = -1;
+ char *s;
+ char cmd[1];
+
+ s = cfg_get(section, "Size", NULL);
+ if (s == NULL || *s == '\0') {
+ error("%s: no '%s.Size' entry from %s", Name, section, cfg_source());
+ return -1;
+ }
+ if (sscanf(s, "%dx%d", &cols, &rows) != 2 || rows < 1 || cols < 1) {
+ error("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source());
+ free(s);
+ return -1;
+ }
+
+ DROWS = rows;
+ DCOLS = cols;
+
+ /* open communication with the display */
+ if (drv_LW_ABP_open(section) < 0) {
+ return -1;
+ }
+
+ /* reset & initialize display */
+ /* assume 0x00 to be a 'reset' command */
+ cmd[0] = 0x00;
+ drv_LW_ABP_send(cmd, 0);
+
+ if (cfg_number(section, "Contrast", 0, 0, 255, &contrast) > 0) {
+ drv_LW_ABP_contrast(contrast);
+ }
+
+ drv_LW_ABP_clear(); /* clear display */
+
+ return 0;
+}
+
+/****************************************/
+/*** plugins ***/
+/****************************************/
+
+static void plugin_contrast(RESULT * result, RESULT * arg1)
+{
+ double contrast;
+
+ contrast = drv_LW_ABP_contrast(R2N(arg1));
+ SetResult(&result, R_NUMBER, &contrast);
+}
+
+
+/****************************************/
+/*** widget callbacks ***/
+/****************************************/
+
+
+/* using drv_generic_text_draw(W) */
+/* using drv_generic_text_icon_draw(W) */
+/* using drv_generic_text_bar_draw(W) */
+/* using drv_generic_gpio_draw(W) */
+
+
+/****************************************/
+/*** exported functions ***/
+/****************************************/
+
+
+/* list models */
+int drv_LW_ABP_list(void)
+{
+ printf("Logic Way ABP driver");
+ return 0;
+}
+
+
+/* initialize driver & display */
+/* use this function for a text display */
+int drv_LW_ABP_init(const char *section, const int quiet)
+{
+ WIDGET_CLASS wc;
+ int ret;
+
+ info("%s: %s", Name, "$Rev$");
+
+ /* display preferences */
+ XRES = 5; /* pixel width of one char */
+ YRES = 8; /* pixel height of one char */
+ CHARS = 0; /* number of user-defineable characters */
+ CHAR0 = 0; /* ASCII of first user-defineable char */
+ GOTO_COST = 10; /* number of bytes a goto command requires */
+
+ /* real worker functions */
+ drv_generic_text_real_write = drv_LW_ABP_write;
+ drv_generic_text_real_defchar = drv_LW_ABP_defchar;
+
+ /* start display */
+ if ((ret = drv_LW_ABP_start(section)) != 0)
+ return ret;
+
+ if (!quiet) {
+ char buffer[40];
+ qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
+ if (drv_generic_text_greet(buffer, "www.logicway.de")) {
+ sleep(3);
+ drv_LW_ABP_clear();
+ }
+ }
+
+ /* initialize generic text driver */
+ if ((ret = drv_generic_text_init(section, Name)) != 0)
+ return ret;
+
+ /* initialize generic icon driver */
+ if ((ret = drv_generic_text_icon_init()) != 0)
+ return ret;
+
+ /* initialize generic bar driver */
+ if ((ret = drv_generic_text_bar_init(0)) != 0)
+ return ret;
+
+ /* add fixed chars to the bar driver */
+ drv_generic_text_bar_add_segment(0, 0, 255, 32); /* ASCII 32 = blank */
+
+
+ /* register text widget */
+ wc = Widget_Text;
+ wc.draw = drv_generic_text_draw;
+ widget_register(&wc);
+
+ /* register icon widget */
+ wc = Widget_Icon;
+ wc.draw = drv_generic_text_icon_draw;
+ widget_register(&wc);
+
+ /* register bar widget */
+ wc = Widget_Bar;
+ wc.draw = drv_generic_text_bar_draw;
+ widget_register(&wc);
+
+ /* register plugins */
+ AddFunction("LCD::contrast", 1, plugin_contrast);
+
+ return 0;
+}
+
+
+
+/* close driver & display */
+/* use this function for a text display */
+int drv_LW_ABP_quit(const int quiet)
+{
+
+ info("%s: shutting down.", Name);
+
+ drv_generic_text_quit();
+
+ /* clear display */
+ drv_LW_ABP_clear();
+
+ /* say goodbye... */
+ if (!quiet) {
+ drv_generic_text_greet("goodbye!", NULL);
+ }
+
+ debug("closing connection");
+ drv_LW_ABP_close();
+
+ return (0);
+}
+
+
+/* use this one for a text display */
+DRIVER drv_LW_ABP = {
+ .name = Name,
+ .list = drv_LW_ABP_list,
+ .init = drv_LW_ABP_init,
+ .quit = drv_LW_ABP_quit,
+};