/* $Id$ * $URL$ * * 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. * */ /* * * 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, "$Rev$"); /* 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, }; d='n318' href='#n318'>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