aboutsummaryrefslogtreecommitdiffstats
path: root/dvb-t/uk-Reigate (follow)
AgeCommit message (Expand)AuthorFilesLines
2014-04-05Imported Upstream version 0+git20140326.cfc2975upstream/0+git20140326.cfc2975Jonathan McCrohan1-8/+8
2013-09-22Imported Upstream version 0+git20130920.f61d5ecupstream/0+git20130920.f61d5ecetobi1-10/+15
2013-04-02Imported Upstream version 0+git20130227.3c5fe84upstream/0+git20130227.3c5fe84Jonathan McCrohan1-0/+10
03' href='#n103'>103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731
/* $Id: drv_MatrixOrbital.c,v 1.42 2006/01/30 06:25:53 reinelt Exp $
 *
 * new style driver for Matrix Orbital serial display modules
 *
 * Copyright (C) 1999, 2000 Michael Reinelt <reinelt@eunet.at>
 * Copyright (C) 2004 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.
 *
 *
 * $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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <time.h>

#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,
};