diff options
Diffstat (limited to 'drv_LW_ABP.c')
| -rw-r--r-- | drv_LW_ABP.c | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/drv_LW_ABP.c b/drv_LW_ABP.c new file mode 100644 index 0000000..e876f0c --- /dev/null +++ b/drv_LW_ABP.c @@ -0,0 +1,343 @@ +/* $Id$ + * $URL$ + * + * 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, +}; |