/* $Id$ * $URL$ * * 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 * Copyright (C) 2005 Michael Reinelt * Copyright (C) 2005, 2006, 2007, 2009 The LCD4Linux Team * * 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 #include #include #include #include #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, };