/* $Id$ * $URL$ * * new style driver for Matrix Orbital serial display modules * * Copyright (C) 1999, 2000 Michael Reinelt * Copyright (C) 2004 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. * * * $Log: drv_MatrixOrbital.c,v $ * Revision 1.42 2006/01/30 06:25:53 reinelt * added CVS Revision * * Revision 1.41 2006/01/05 18:56:57 reinelt * more GPO stuff * * Revision 1.40 2006/01/03 06:13:45 reinelt * GPIO's for MatrixOrbital * * Revision 1.39 2005/05/08 04:32:44 reinelt * CodingStyle added and applied * * Revision 1.38 2005/01/22 12:44:41 reinelt * MatrixOrbital backlight micro-fix * * Revision 1.37 2005/01/18 06:30:23 reinelt * added (C) to all copyright statements * * Revision 1.36 2004/06/26 12:04:59 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.35 2004/06/26 09:27:20 reinelt * * added '-W' to CFLAGS * changed all C++ comments to C ones * cleaned up a lot of signed/unsigned mistakes * * Revision 1.34 2004/06/26 06:12:15 reinelt * * support for Beckmann+Egle Compact Terminals * some mostly cosmetic changes in the MatrixOrbital and USBLCD driver * added debugging to the generic serial driver * fixed a bug in the generic text driver where icons could be drawn outside * the display bounds * * Revision 1.33 2004/06/20 10:09:54 reinelt * * 'const'ified the whole source * * Revision 1.32 2004/06/06 06:51:59 reinelt * * do not display end splash screen if quiet=1 * * Revision 1.31 2004/06/05 06:41:39 reinelt * * chancged splash screen again * * Revision 1.30 2004/06/05 06:13:12 reinelt * * splash screen for all text-based display drivers * * Revision 1.29 2004/06/02 09:41:19 reinelt * * prepared support for startup splash screen * * Revision 1.28 2004/06/01 06:45:29 reinelt * * some Fixme's processed * documented some code * * Revision 1.27 2004/05/31 21:23:16 reinelt * * some cleanups in the MatrixOrbital driver * * Revision 1.26 2004/05/31 16:39:06 reinelt * * added NULL display driver (for debugging/profiling purposes) * added backlight/contrast initialisation for matrixOrbital * added Backlight initialisation for Cwlinux * * Revision 1.25 2004/05/31 05:38:02 reinelt * * fixed possible bugs with user-defined chars (clear high bits) * thanks to Andy Baxter for debugging the MilfordInstruments driver! * * Revision 1.24 2004/05/28 13:51:42 reinelt * * ported driver for Beckmann+Egle Mini-Terminals * added 'flags' parameter to serial_init() * * Revision 1.23 2004/05/27 03:39:47 reinelt * * changed function naming scheme to plugin::function * * Revision 1.22 2004/05/26 11:37:36 reinelt * * Curses driver ported. * * Revision 1.21 2004/03/19 09:17:46 reinelt * * removed the extra 'goto' function, row and col are additional parameters * of the write() function now. * * Revision 1.20 2004/02/14 11:56:17 reinelt * M50530 driver ported * changed lots of 'char' to 'unsigned char' * * Revision 1.19 2004/01/29 04:40:02 reinelt * every .c file includes "config.h" now * * Revision 1.18 2004/01/23 07:04:22 reinelt * icons finished! * * Revision 1.17 2004/01/23 04:53:50 reinelt * icon widget added (not finished yet!) * * Revision 1.16 2004/01/22 07:57:45 reinelt * several bugs fixed where segfaulting on layout>display * Crystalfontz driver optimized, 632 display already works * * Revision 1.15 2004/01/21 12:36:19 reinelt * Crystalfontz NextGeneration driver added * * Revision 1.14 2004/01/20 15:32:49 reinelt * first version of Next Generation HD44780 (untested! but it compiles...) * some cleanup in the other drivers * * Revision 1.13 2004/01/20 14:25:12 reinelt * some reorganization * moved drv_generic to drv_generic_serial * moved port locking stuff to drv_generic_serial * * Revision 1.12 2004/01/20 12:45:47 reinelt * "Default screen" working with MatrixOrbital * * Revision 1.11 2004/01/20 05:36:59 reinelt * moved text-display-specific stuff to drv_generic_text * moved all the bar stuff from drv_generic_bar to generic_text * * Revision 1.10 2004/01/20 04:51:39 reinelt * moved generic stuff from drv_MatrixOrbital to drv_generic * implemented new-stylish bars which are nearly finished * * Revision 1.9 2004/01/18 21:25:16 reinelt * Framework for bar widget opened * * Revision 1.8 2004/01/15 07:47:02 reinelt * debian/ postinst and watch added (did CVS forget about them?) * evaluator: conditional expressions (a?b:c) added * text widget nearly finished * * Revision 1.7 2004/01/14 11:33:00 reinelt * new plugin 'uname' which does what it's called * text widget nearly finished * first results displayed on MatrixOrbital * * Revision 1.6 2004/01/11 18:26:02 reinelt * further widget and layout processing * * Revision 1.5 2004/01/11 09:26:15 reinelt * layout starts to exist... * * Revision 1.4 2004/01/10 20:22:33 reinelt * added new function 'cfg_list()' (not finished yet) * added layout.c (will replace processor.c someday) * added widget_text.c (will be the first and most important widget) * modified lcd4linux.c so that old-style configs should work, too * * Revision 1.3 2004/01/10 17:34:40 reinelt * further matrixOrbital changes * widgets initialized * * Revision 1.2 2004/01/10 10:20:22 reinelt * new MatrixOrbital changes * * Revision 1.1 2004/01/09 17:03:07 reinelt * initiated transfer to new driver architecture * new file 'drv.c' will someday replace 'display.c' * new file 'drv_MatrixOrbital.c' will replace 'MatrixOrbital.c' * due to this 'soft' transfer lcd4linux should stay usable during the switch * (at least I hope so) * */ /* * * exported fuctions: * * struct DRIVER drv_MatrixOrbital * */ #include "config.h" #include #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_gpio.h" #include "drv_generic_serial.h" static char Name[] = "MatrixOrbital"; static int Model; static int Protocol; typedef struct { int type; char *name; int rows; int cols; int gpis; int gpos; int protocol; } MODEL; /* Fixme #1: number of gpo's should be verified */ /* Fixme #2: protocol should be verified */ static MODEL Models[] = { {0x01, "LCD0821", 2, 8, 0, 1, 1}, {0x03, "LCD2021", 2, 20, 0, 1, 1}, {0x04, "LCD1641", 4, 16, 0, 1, 1}, {0x05, "LCD2041", 4, 20, 0, 1, 1}, {0x06, "LCD4021", 2, 40, 0, 1, 1}, {0x07, "LCD4041", 4, 40, 0, 1, 1}, {0x08, "LK202-25", 2, 20, 8, 8, 2}, {0x09, "LK204-25", 4, 20, 8, 8, 2}, {0x0a, "LK404-55", 4, 40, 8, 8, 2}, {0x0b, "VFD2021", 2, 20, 0, 1, 1}, {0x0c, "VFD2041", 4, 20, 0, 1, 1}, {0x0d, "VFD4021", 2, 40, 0, 1, 1}, {0x0e, "VK202-25", 2, 20, 0, 1, 1}, {0x0f, "VK204-25", 4, 20, 0, 1, 1}, {0x10, "GLC12232", -1, -1, 0, 1, 1}, {0x13, "GLC24064", -1, -1, 0, 1, 1}, {0x15, "GLK24064-25", -1, -1, 0, 1, 1}, {0x22, "GLK12232-25", -1, -1, 0, 1, 1}, {0x31, "LK404-AT", 4, 40, 8, 8, 2}, {0x32, "VFD1621", 2, 16, 0, 1, 1}, {0x33, "LK402-12", 2, 40, 8, 8, 2}, {0x34, "LK162-12", 2, 16, 8, 8, 2}, {0x35, "LK204-25PC", 4, 20, 8, 8, 2}, {0x36, "LK202-24-USB", 2, 20, 8, 8, 2}, {0x38, "LK204-24-USB", 4, 20, 8, 8, 2}, {0x39, "VK204-24-USB", 4, 20, 8, 8, 2}, {0xff, "Unknown", -1, -1, 0, 0, 0} }; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ static void drv_MO_clear(void) { switch (Protocol) { case 1: drv_generic_serial_write("\014", 1); /* Clear Screen */ break; case 2: drv_generic_serial_write("\376\130", 2); /* Clear Screen */ break; } } static void drv_MO_write(const int row, const int col, const char *data, const int len) { char cmd[5] = "\376Gyx"; cmd[2] = (char) col + 1; cmd[3] = (char) row + 1; drv_generic_serial_write(cmd, 4); drv_generic_serial_write(data, len); } static void drv_MO_defchar(const int ascii, const unsigned char *matrix) { int i; char cmd[11] = "\376N"; cmd[2] = (char) ascii; for (i = 0; i < 8; i++) { cmd[i + 3] = matrix[i] & 0x1f; } drv_generic_serial_write(cmd, 11); } static int drv_MO_contrast(int contrast) { static unsigned char Contrast = 0; char cmd[3] = "\376Pn"; /* -1 is used to query the current contrast */ if (contrast == -1) return Contrast; if (contrast < 0) contrast = 0; if (contrast > 255) contrast = 255; Contrast = contrast; cmd[2] = Contrast; drv_generic_serial_write(cmd, 3); return Contrast; } static int drv_MO_backlight(int backlight) { static unsigned char Backlight = 0; char cmd[3] = "\376Bn"; /* -1 is used to query the current backlight */ if (backlight == -1) return Backlight; if (backlight < 0) backlight = 0; if (backlight > 255) backlight = 255; Backlight = backlight; if (backlight <= 0) { /* backlight off */ drv_generic_serial_write("\376F", 2); } else { /* backlight on for n minutes */ cmd[2] = Backlight; drv_generic_serial_write(cmd, 3); } return Backlight; } static int drv_MO_GPI(const int num) { static int GPI[8] = { -1, -1, -1, -1, -1, -1, -1, -1 }; static time_t T[8], now; if (num < 0 || num > 7) { return 0; } /* read RPM every two seconds */ if (time(&now) - T[num] >= 2) { char cmd[3]; unsigned char ans[7]; T[num] = now; cmd[0] = '\376'; cmd[1] = '\301'; cmd[2] = (char) num + 1; drv_generic_serial_write(cmd, 3); usleep(100000); if (drv_generic_serial_read((char *) ans, 7) == 7) { if (ans[0] == 0x23 && ans[1] == 0x2a && ans[2] == 0x03 && ans[3] == 0x52 && ans[4] == num + 1) { GPI[num] = 18750000 / (256 * ans[5] + ans[6]); } else { error("%s: strange answer %02x %02x %02x %02x %02x %02x %02x", Name, ans[0], ans[1], ans[2], ans[3], ans[4], ans[5], ans[6]); } } } return GPI[num]; } static int drv_MO_GPO(const int num, const int val) { int v = 0; char cmd[4]; switch (Protocol) { case 1: if (num == 0) { if (val > 0) { v = 1; drv_generic_serial_write("\376W", 2); /* GPO on */ } else { v = 0; drv_generic_serial_write("\376V", 2); /* GPO off */ } } break; case 2: if (val <= 0) { v = 0; cmd[0] = '\376'; cmd[1] = 'V'; /* GPO off */ cmd[2] = (char) num + 1; drv_generic_serial_write(cmd, 3); } else if (val >= 255) { v = 255; cmd[0] = '\376'; cmd[1] = 'W'; /* GPO on */ cmd[2] = (char) num + 1; drv_generic_serial_write(cmd, 3); } else { v = val; cmd[0] = '\376'; cmd[1] = '\300'; /* PWM control */ cmd[2] = (char) num + 1; cmd[3] = (char) v; drv_generic_serial_write(cmd, 4); } break; } return v; } static int drv_MO_start(const char *section, const int quiet) { int i; char *model; char buffer[256]; model = cfg_get(section, "Model", NULL); if (model != NULL && *model != '\0') { 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); } else { info("%s: no '%s.Model' entry from %s, auto-dedecting", Name, section, cfg_source()); Model = -1; } if (drv_generic_serial_open(section, Name, 0) < 0) return -1; if (Model == -1 || Models[Model].protocol > 1) { /* read module type */ drv_generic_serial_write("\3767", 2); usleep(1000); if (drv_generic_serial_read(buffer, 1) == 1) { for (i = 0; Models[i].type != 0xff; i++) { if (Models[i].type == (int) *buffer) break; } info("%s: display reports model '%s' (type 0x%02x)", Name, Models[i].name, Models[i].type); /* auto-dedection */ if (Model == -1) Model = i; /* auto-dedection matches specified model? */ if (Models[i].type != 0xff && Model != i) { error("%s: %s.Model '%s' from %s does not match dedected Model '%s'", Name, section, model, cfg_source(), Models[i].name); return -1; } } else { info("%s: display detection failed.", Name); } } /* initialize global variables */ DROWS = Models[Model].rows; DCOLS = Models[Model].cols; GPIS = Models[Model].gpis; GPOS = Models[Model].gpos; Protocol = Models[Model].protocol; if (Protocol > 1) { /* read serial number */ drv_generic_serial_write("\3765", 2); usleep(100000); if (drv_generic_serial_read(buffer, 2) == 2) { info("%s: display reports serial number 0x%x", Name, *(short *) buffer); } /* read version number */ drv_generic_serial_write("\3766", 2); usleep(100000); if (drv_generic_serial_read(buffer, 1) == 1) { info("%s: display reports firmware version 0x%x", Name, *buffer); } } drv_MO_clear(); drv_generic_serial_write("\376B", 3); /* backlight on */ drv_generic_serial_write("\376K", 2); /* cursor off */ drv_generic_serial_write("\376T", 2); /* blink off */ drv_generic_serial_write("\376D", 2); /* line wrapping off */ drv_generic_serial_write("\376R", 2); /* auto scroll off */ /* set contrast */ if (cfg_number(section, "Contrast", 0, 0, 255, &i) > 0) { drv_MO_contrast(i); } /* set backlight */ if (cfg_number(section, "Backlight", 0, 0, 255, &i) > 0) { drv_MO_backlight(i); } if (!quiet) { if (drv_generic_text_greet(Models[Model].name, "MatrixOrbital")) { sleep(3); drv_MO_clear(); } } return 0; } /****************************************/ /*** plugins ***/ /****************************************/ static void plugin_contrast(RESULT * result, const int argc, RESULT * argv[]) { double contrast; switch (argc) { case 0: contrast = drv_MO_contrast(-1); SetResult(&result, R_NUMBER, &contrast); break; case 1: contrast = drv_MO_contrast(R2N(argv[0])); SetResult(&result, R_NUMBER, &contrast); break; default: error("%s::contrast(): wrong number of parameters", Name); SetResult(&result, R_STRING, ""); } } static void plugin_backlight(RESULT * result, const int argc, RESULT * argv[]) { double backlight; switch (argc) { case 0: backlight = drv_MO_backlight(-1); SetResult(&result, R_NUMBER, &backlight); break; case 1: backlight = drv_MO_backlight(R2N(argv[0])); SetResult(&result, R_NUMBER, &backlight); break; default: error("%s::backlight(): wrong number of parameters", Name); SetResult(&result, R_STRING, ""); } } /****************************************/ /*** 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_MO_list(void) { int i; for (i = 0; Models[i].type != 0xff; i++) { printf("%s ", Models[i].name); } return 0; } /* initialize driver & display */ int drv_MO_init(const char *section, const int quiet) { WIDGET_CLASS wc; int ret; info("%s: %s", Name, "$Revision: 1.42 $"); /* 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_MO_write; drv_generic_text_real_defchar = drv_MO_defchar; drv_generic_gpio_real_get = drv_MO_GPI; drv_generic_gpio_real_set = drv_MO_GPO; /* start display */ if ((ret = drv_MO_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 */ /* initialize generic GPIO driver */ if ((ret = drv_generic_gpio_init(section, Name)) != 0) return ret; /* 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); AddFunction("LCD::backlight", -1, plugin_backlight); return 0; } /* close driver & display */ int drv_MO_quit(const int quiet) { info("%s: shutting down display.", Name); drv_generic_text_quit(); drv_generic_gpio_quit(); /* clear display */ drv_MO_clear(); /* say goodbye... */ if (!quiet) { drv_generic_text_greet("goodbye!", NULL); } drv_generic_serial_close(); return (0); } DRIVER drv_MatrixOrbital = { name:Name, list:drv_MO_list, init:drv_MO_init, quit:drv_MO_quit, };