From 181cec4348da40331b3e8ab365732c025ec149b2 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Wed, 27 Apr 2011 19:24:15 +0200 Subject: Import upstream version 0.11.0~svn1143 --- drv_MilfordInstruments.c | 285 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 drv_MilfordInstruments.c (limited to 'drv_MilfordInstruments.c') diff --git a/drv_MilfordInstruments.c b/drv_MilfordInstruments.c new file mode 100644 index 0000000..ed49ab8 --- /dev/null +++ b/drv_MilfordInstruments.c @@ -0,0 +1,285 @@ +/* $Id: drv_MilfordInstruments.c 840 2007-09-09 12:17:42Z michael $ + * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_MilfordInstruments.c $ + * + * driver for Milford Instruments 'BPK' piggy-back serial interface board + * for standard Hitachi 44780 compatible lcd modules. + * + * Copyright (C) 2003, 2004 Andy Baxter + * Copyright (C) 2004 The LCD4Linux Team + * + * based on the MatrixOrbital driver which is + * Copyright (C) 1999, 2000 Michael Reinelt + * + * 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_MilfordInstruments + * + */ + +#include "config.h" + +#include +#include +#include +#include + +#include "debug.h" +#include "cfg.h" +#include "plugin.h" +#include "widget.h" +#include "widget_text.h" +#include "widget_icon.h" +#include "widget_bar.h" +#include "drv.h" +#include "drv_generic_text.h" +#include "drv_generic_serial.h" + + +static char Name[] = "MilfordInstruments"; + +typedef struct { + int type; + char *name; + int rows; + int cols; +} MODEL; + +static MODEL Models[] = { + {216, "MI216", 2, 16}, + {220, "MI220", 2, 20}, + {240, "MI240", 2, 40}, + {420, "MI420", 4, 20}, + {-1, "unknown", -1, -1}, +}; + +static int Model; + + +/****************************************/ +/*** hardware dependant functions ***/ +/****************************************/ + +static void drv_MI_clear(void) +{ + drv_generic_serial_write("\376\001", 2); /* clear screen */ +} + + +static void drv_MI_write(const int row, const int col, const char *data, const int len) +{ + char cmd[2] = "\376x"; + int ddbase = 128; + if (row & 1) { /* i.e. if row is 1 or 3 */ + ddbase += 64; + } + if (row & 2) { /* i.e. if row is 0 or 2. */ + ddbase += 20; + } + cmd[1] = (char) (ddbase + col); + drv_generic_serial_write(cmd, 2); + + drv_generic_serial_write(data, len); +} + + +static void drv_MI_defchar(const int ascii, const unsigned char *matrix) +{ + int i; + char cmd[10] = "\376x"; + + if (ascii < 8) { + cmd[1] = (char) (64 + ascii * 8); + for (i = 0; i < 8; i++) { + cmd[i + 2] = matrix[i] & 0x1f; + }; + drv_generic_serial_write(cmd, 10); + } +} + + +static int drv_MI_start(const char *section, const int quiet) +{ + int i; + char *model; + + model = cfg_get(section, "Model", NULL); + if (model == NULL && *model == '\0') { + error("%s: no '%s.Model' entry from %s", Name, section, cfg_source()); + return -1; + } + + for (i = 0; Models[i].type != 0xff; i++) { + if (strcasecmp(Models[i].name, model) == 0) + break; + } + if (Models[i].type == 0xff) { + error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source()); + return -1; + } + Model = i; + info("%s: using model '%s'", Name, Models[Model].name); + + if (drv_generic_serial_open(section, Name, 0) < 0) + return -1; + + /* initialize global variables */ + DROWS = Models[Model].rows; + DCOLS = Models[Model].cols; + + drv_MI_clear(); + drv_generic_serial_write("\376\014", 2); /* cursor off */ + + if (!quiet) { + if (drv_generic_text_greet(Models[Model].name, "Milford Instruments")) { + sleep(3); + drv_MI_clear(); + } + } + + return 0; +} + + +/****************************************/ +/*** plugins ***/ +/****************************************/ + +/* none at the moment... */ + + +/****************************************/ +/*** widget callbacks ***/ +/****************************************/ + +/* using drv_generic_text_draw(W) */ +/* using drv_generic_text_icon_draw(W) */ +/* using drv_generic_text_bar_draw(W) */ + + +/****************************************/ +/*** exported functions ***/ +/****************************************/ + + +/* list models */ +int drv_MI_list(void) +{ + int i; + + for (i = 0; Models[i].type > 0; i++) { + printf("%s ", Models[i].name); + } + return 0; +} + + +/* initialize driver & display */ +int drv_MI_init(const char *section, const int quiet) +{ + WIDGET_CLASS wc; + int ret; + + info("%s: %s", Name, "$Rev: 840 $"); + + /* display preferences */ + XRES = 5; /* pixel width of one char */ + YRES = 8; /* pixel height of one char */ + CHARS = 8; /* number of user-defineable characters */ + CHAR0 = 0; /* ASCII of first user-defineable char */ + GOTO_COST = 4; /* number of bytes a goto command requires */ + + /* real worker functions */ + drv_generic_text_real_write = drv_MI_write; + drv_generic_text_real_defchar = drv_MI_defchar; + + + /* start display */ + if ((ret = drv_MI_start(section, quiet)) != 0) + return ret; + + /* 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 */ + drv_generic_text_bar_add_segment(255, 255, 255, 255); /* ASCII 255 = block */ + + /* 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 */ + /* none at the moment... */ + + return 0; +} + + +/* close driver & display */ +int drv_MI_quit(const int quiet) +{ + + info("%s: shutting down.", Name); + + drv_generic_text_quit(); + + /* clear display */ + drv_MI_clear(); + + /* say goodbye... */ + if (!quiet) { + drv_generic_text_greet("goodbye!", NULL); + } + + drv_generic_serial_close(); + + return (0); +} + + +DRIVER drv_MilfordInstruments = { + .name = Name, + .list = drv_MI_list, + .init = drv_MI_init, + .quit = drv_MI_quit, +}; 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