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# Channel table for Peruíbe - SP - Brazil
# Source: http://portalbsd.com.br/novo/terrestres_channels.php?channels=384

# Physical channel 17
[TV Tribuna]
	DELIVERY_SYSTEM = ISDBT
	BANDWIDTH_HZ = 6000000
	FREQUENCY = 491142857
	INVERSION = AUTO
	GUARD_INTERVAL = AUTO
	TRANSMISSION_MODE = AUTO
	INVERSION = AUTO
	GUARD_INTERVAL = AUTO
	TRANSMISSION_MODE = AUTO
	ISDBT_LAYER_ENABLED = 7
	ISDBT_SOUND_BROADCASTING = 0
	ISDBT_SB_SUBCHANNEL_ID = 0
	ISDBT_SB_SEGMENT_IDX = 0
	ISDBT_SB_SEGMENT_COUNT = 0
	ISDBT_LAYERA_FEC = AUTO
	ISDBT_LAYERA_MODULATION = QAM/AUTO
	ISDBT_LAYERA_SEGMENT_COUNT = 0
	ISDBT_LAYERA_TIME_INTERLEAVING = 0
	ISDBT_LAYERB_FEC = AUTO
	ISDBT_LAYERB_MODULATION = QAM/AUTO
	ISDBT_LAYERB_SEGMENT_COUNT = 0
	ISDBT_LAYERB_TIME_INTERLEAVING = 0
	ISDBT_LAYERC_FEC = AUTO
	ISDBT_LAYERC_MODULATION = QAM/AUTO
	ISDBT_LAYERC_SEGMENT_COUNT = 0
	ISDBT_LAYERC_TIME_INTERLEAVING = 0

# Physical channel 23
[VTV]
	DELIVERY_SYSTEM = ISDBT
	BANDWIDTH_HZ = 6000000
	FREQUENCY = 527142857
	INVERSION = AUTO
	GUARD_INTERVAL = AUTO
	TRANSMISSION_MODE = AUTO
	INVERSION = AUTO
	GUARD_INTERVAL = AUTO
	TRANSMISSION_MODE = AUTO
	ISDBT_LAYER_ENABLED = 7
	ISDBT_SOUND_BROADCASTING = 0
	ISDBT_SB_SUBCHANNEL_ID = 0
	ISDBT_SB_SEGMENT_IDX = 0
	ISDBT_SB_SEGMENT_COUNT = 0
	ISDBT_LAYERA_FEC = AUTO
	ISDBT_LAYERA_MODULATION = QAM/AUTO
	ISDBT_LAYERA_SEGMENT_COUNT = 0
	ISDBT_LAYERA_TIME_INTERLEAVING = 0
	ISDBT_LAYERB_FEC = AUTO
	ISDBT_LAYERB_MODULATION = QAM/AUTO
	ISDBT_LAYERB_SEGMENT_COUNT = 0
	ISDBT_LAYERB_TIME_INTERLEAVING = 0
	ISDBT_LAYERC_FEC = AUTO
	ISDBT_LAYERC_MODULATION = QAM/AUTO
	ISDBT_LAYERC_SEGMENT_COUNT = 0
	ISDBT_LAYERC_TIME_INTERLEAVING = 0

# Physical channel 24
[TVB]
	DELIVERY_SYSTEM = ISDBT
	BANDWIDTH_HZ = 6000000
	FREQUENCY = 533142857
	INVERSION = AUTO
	GUARD_INTERVAL = AUTO
	TRANSMISSION_MODE = AUTO
	INVERSION = AUTO
	GUARD_INTERVAL = AUTO
	TRANSMISSION_MODE = AUTO
	ISDBT_LAYER_ENABLED = 7
	ISDBT_SOUND_BROADCASTING = 0
	ISDBT_SB_SUBCHANNEL_ID = 0
	ISDBT_SB_SEGMENT_IDX = 0
	ISDBT_SB_SEGMENT_COUNT = 0
	ISDBT_LAYERA_FEC = AUTO
	ISDBT_LAYERA_MODULATION = QAM/AUTO
	ISDBT_LAYERA_SEGMENT_COUNT = 0
	ISDBT_LAYERA_TIME_INTERLEAVING = 0
	ISDBT_LAYERB_FEC = AUTO
	ISDBT_LAYERB_MODULATION = QAM/AUTO
	ISDBT_LAYERB_SEGMENT_COUNT = 0
	ISDBT_LAYERB_TIME_INTERLEAVING = 0
	ISDBT_LAYERC_FEC = AUTO
	ISDBT_LAYERC_MODULATION = QAM/AUTO
	ISDBT_LAYERC_SEGMENT_COUNT = 0
	ISDBT_LAYERC_TIME_INTERLEAVING = 0
/a> 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
/* $Id$
 * $URL$
 *
 * Driver for Electronic Assembly serial graphic display
 *
 * Copyright (C) 2007 Stefan Gmeiner <stefangmeiner@solnet.ch>
 * Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
 * Copyright (C) 2005, 2006, 2007 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.
 *
 */

/*
 * Electronic Assembly RS232 Graphic Displays
 *
 * This driver supports some of the Electronic Assembly serial graphic displays. Although
 * most of this display support higher level operation like text and graphic command, non of
 * these are used. Instead the lcd4linux graphic routines creates the graphic which is then
 * transferd to the display.
 * 
 * FIXME: Some display have addition features such as GPI which are not yet implemented.
 *
 * Display          Protocol   Output  Contrast
 * ============================================
 * GE120-5NV24         1         8       yes
 * GE128-6N3V24        1         8       no
 * GE128-6N9V24        2         0       yes
 * GE128-7KV24         3         8       no
 * GE240-6KV24         3         8       no
 * GE240-6KCV24        3         8       no
 * GE240-7KV24         3         8       no
 * GE240-7KLWV24       3         8       no
 * GE240-6KLWV24       3         8       no
 *
 * Supported protocol commands:
 *
 *            Clear
 * Protocol  Display  Set Output     Set Contrast    Bitmap                    Orientation
 * =======================================================================================
 *    1      DL       Y(0..7)(0..1)  K(0..20)        U(x)(y)(w)(h)(...)        Vertical
 *    2      <ESC>DL  --             <ESC>DK(0..63)  <ESC>UL(x)(y)(w)(h)(...)  Vertical
 *    3      DL       Y(0..7)(0..1)  --              U(x)(y)(w)(h)(...)        Horizontal
 *
 * Bitmap orientation:
 *
 * Vertical:        Byte-No.
 *                 123456789....
 *           Bit 0 *********
 *           Bit 1 *********
 *           Bit 2 *********
 *           Bit 3 *********
 *           Bit 4 *********
 *           Bit 5 *********
 *           Bit 6 *********
 *           Bit 7 *********
 *
 * Horizontal:      Bit-No.
 *                 76543210
 *          Byte 0 ********
 *          Byte 1 ********
 *          Byte 3 ********
 *          ...
 *
 *
 */

/* 
 *
 * exported fuctions:
 *
 * struct DRIVER drv_EA232graphic
 *
 */

#include "config.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/time.h>
#include <unistd.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"

/* graphic display */
#include "drv_generic_graphic.h"

/* serial port */
#include "drv_generic_serial.h"

/* GPO */
#include "drv_generic_gpio.h"



#define ESC ((char)27)
#define MSB_BYTE 0x80
#define LSB_BYTE 0x01

static char Name[] = "EA232graphic";

typedef struct {
    char *name;
    int columns;
    int rows;
    int max_contrast;
    int default_contrast;
    int gpo;
    int protocol;
} MODEL;

static MODEL Models[] = {
    /* Protocol 1 models */
    {"GE120-5NV24", 120, 32, 20, 8, 8, 1},
    {"GE128-6N3V24", 128, 64, 0, 0, 8, 1},

    /* Protocol 2 models */
    {"GE128-6N9V24", 128, 64, 63, 40, 0, 2},

    /* Protocol 3 models */
    {"GE128-7KV24", 128, 128, 0, 0, 8, 3},
    {"GE240-6KV24", 240, 64, 0, 0, 8, 3},
    {"GE240-6KCV24", 240, 64, 0, 0, 8, 3},
    {"GE240-7KV24", 240, 128, 0, 0, 8, 3},
    {"GE240-7KLWV24", 240, 128, 0, 0, 8, 3},
    {"GE240-6KLWV24", 240, 64, 0, 0, 8, 3},

    {NULL, 0, 0, 0, 0, 0, 0}
};

static MODEL *Model;


/****************************************/
/***  hardware dependant functions    ***/
/****************************************/


static int drv_EA232graphic_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_EA232graphic_close(void)
{
    drv_generic_serial_close();

    return 0;
}


/* write data to the display */
static void drv_EA232graphic_send(const char *data, const int len)
{
    drv_generic_serial_write(data, len);
}


/* delete Display */
static void drv_EA232graphic_clear_display()
{
    char cmd[3];

    switch (Model->protocol) {
    case 1:
    case 3:
	cmd[0] = 'D';
	cmd[1] = 'L';
	drv_EA232graphic_send(cmd, 2);
	break;

    case 2:
	cmd[0] = ESC;
	cmd[1] = 'D';
	cmd[2] = 'L';
	drv_EA232graphic_send(cmd, 3);
	break;
    default:
	error("%s: undefined protocol type", Name);
	return;
    }
}



/* copy framebuffer to display */
static void drv_EA232graphic_blit(const int row, const int col, const int height, const int width)
{

    int r, c, l, p;
    char *cmd;

    /* calculate length of command */
    l = 0;
    switch (Model->protocol) {
    case 1:
    case 2:
	l = ((height + 7) / 8) * width;
	break;
    case 3:
	l = ((width + 7) / 8) * height;
	break;
    default:
	error("%s: undefined protocol type", Name);
	return;
    }

    /* add maximum length of command header */
    cmd = (char *) malloc(l + 10);
    if (cmd == NULL) {
	error("%s: allocation of buffer failed: %s", Name, strerror(errno));
	return;
    }
    p = 0;

    /* write command header */
    switch (Model->protocol) {
    case 1:
    case 3:
	cmd[p++] = 'U';
	cmd[p++] = col;
	cmd[p++] = row;
	cmd[p++] = width;
	cmd[p++] = height;
	break;
    case 2:
	cmd[p++] = ESC;
	cmd[p++] = 'U';
	cmd[p++] = 'L';
	cmd[p++] = col;
	cmd[p++] = row;
	cmd[p++] = width;
	cmd[p++] = height;
	break;
    default:
	error("%s: undefined protocol type", Name);
	free(cmd);
	return;
    }

    /* clear all pixels */
    memset(cmd + p, 0, l);

    /* set pixels */
    switch (Model->protocol) {
    case 1:
    case 2:
	for (r = 0; r < height; r++) {
	    for (c = 0; c < width; c++) {
		if (drv_generic_graphic_black(r + row, c + col)) {
		    cmd[(r / 8) * width + c + p] |= (LSB_BYTE << (r % 8));
		}
	    }
	}
	break;
    case 3:
	for (c = 0; c < width; c++) {
	    for (r = 0; r < height; r++) {
		if (drv_generic_graphic_black(r + row, c + col)) {
		    cmd[(c / 8) * height + r + p] |= (MSB_BYTE >> (c % 8));
		}
	    }
	}
	break;
    default:
	error("%s: undefined protocol type", Name);
	free(cmd);
	return;
    }

    drv_EA232graphic_send(cmd, p + l);

    free(cmd);
}


static int drv_EA232graphic_GPO(const int num, const int val)
{
    char cmd[4];

    if (Model->gpo == 0) {
	error("%s: GPO not supported on this model.", Name);
	return -1;
    }


    if (Model->gpo < num) {
	error("%s: GPO %d is not available.", Name, num);
	return -1;
    }

    cmd[0] = 'Y';
    cmd[1] = num;
    cmd[2] = (val > 0) ? 1 : 0;

    drv_EA232graphic_send(cmd, 3);

    return 0;
}


/* adjust contast */
static int drv_EA232graphic_contrast(int contrast)
{
    char cmd[4];

    if (Model->max_contrast == 0) {
	error("%s: contrast setting not support by model", Name);
	return -1;
    }

    /* adjust limits according to the display */
    if (contrast < 0)
	contrast = 0;
    if (contrast > Model->max_contrast)
	contrast = Model->max_contrast;


    switch (Model->protocol) {
    case 1:
	cmd[0] = 'K';
	cmd[1] = contrast;
	drv_EA232graphic_send(cmd, 2);
	break;
    case 2:
	cmd[0] = ESC;
	cmd[1] = 'D';
	cmd[2] = 'K';
	cmd[3] = contrast;
	drv_EA232graphic_send(cmd, 4);
	break;
    default:
	error("%s: undefined protocol type", Name);
	return -1;
    }

    return contrast;
}


/* start graphic display */
static int drv_EA232graphic_start(const char *section)
{
    char *s;
    int contrast;
    int i;

    /* read model from configuration */
    s = cfg_get(section, "Model", NULL);
    if (s == NULL || *s == '\0') {
	error("%s: no '%s.Model' entry from %s", Name, section, cfg_source());
	return -1;
    }

    for (i = 0; Models[i].name != NULL; i++) {
	if (strcasecmp(Models[i].name, s) == 0)
	    break;
    }
    if (!Models[i].name) {
	error("%s: %s.Model '%s' is unknown from %s", Name, section, s, cfg_source());
	free(s);
	return -1;
    }
    Model = &Models[i];
    info("%s: using model '%s'", Name, Model->name);
    free(s);

    /* read display size from model configuration */
    DROWS = Model->rows;
    DCOLS = Model->columns;

    /* set number of GPO's from model */
    GPOS = Model->gpo;

    /* read font size from configuration */
    s = cfg_get(section, "Font", "6x8");
    if (s == NULL || *s == '\0') {
	error("%s: no '%s.Font' entry from %s", Name, section, cfg_source());
	return -1;
    }

    XRES = -1;
    YRES = -1;
    if (sscanf(s, "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) {
	error("%s: bad Font '%s' from %s", Name, s, cfg_source());
	free(s);
	return -1;
    }

    /* Fixme: provider other fonts someday... */
    if (XRES != 6 && YRES != 8) {
	error("%s: bad Font '%s' from %s (only 6x8 at the moment)", Name, s, cfg_source());
	free(s);
	return -1;
    }
    free(s);

    /* open communication with the display */
    if (drv_EA232graphic_open(section) < 0) {
	return -1;
    }

    /* reset & initialize display */
    drv_EA232graphic_clear_display();

    if (cfg_number(section, "Contrast", Model->default_contrast, 0, Model->max_contrast, &contrast) > 0) {
	drv_EA232graphic_contrast(contrast);
    }

    return 0;
}


/****************************************/
/***            plugins               ***/
/****************************************/

static void plugin_contrast(RESULT * result, RESULT * arg1)
{
    double contrast;

    contrast = drv_EA232graphic_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_EA232graphic_list(void)
{
    int i;

    for (i = 0; Models[i].name; i++) {
	printf("%s ", Models[i].name);
    }

    return 0;
}


/* initialize driver & display */
int drv_EA232graphic_init(const char *section, const int quiet)
{
    int ret;

    /* real worker functions */
    drv_generic_graphic_real_blit = drv_EA232graphic_blit;
    drv_generic_gpio_real_set = drv_EA232graphic_GPO;

    /* start display */
    if ((ret = drv_EA232graphic_start(section)) != 0)
	return ret;

    /* initialize generic graphic driver */
    if ((ret = drv_generic_graphic_init(section, Name)) != 0)
	return ret;

    /* initialize GPO */
    if (Model->gpo > 0 && (ret = drv_generic_gpio_init(section, Name)) != 0)
	return ret;

    if (!quiet) {
	char buffer[40];
	qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
	if (drv_generic_graphic_greet(buffer, NULL)) {
	    sleep(3);
	    drv_generic_graphic_clear();
	}
    }

    /* register plugins */
    AddFunction("LCD::contrast", 1, plugin_contrast);

    return 0;
}

/* close driver & display */
int drv_EA232graphic_quit(const int quiet)
{

    info("%s: shutting down.", Name);

    /* clear display */
    drv_generic_graphic_clear();

    /* say goodbye... */
    if (!quiet) {
	drv_generic_graphic_greet("goodbye!", NULL);
    }

    drv_generic_graphic_quit();

    if (Model->gpo > 0)
	drv_generic_gpio_quit();

    debug("%s: closing connection", Name);
    drv_EA232graphic_close();

    return (0);
}

/* use this one for a graphic display */
DRIVER drv_EA232graphic = {
    .name = Name,
    .list = drv_EA232graphic_list,
    .init = drv_EA232graphic_init,
    .quit = drv_EA232graphic_quit,
};