/* $Id$
* $URL$
*
* driver for Allnet FW8888 display
*
* Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
* Copyright (C) 2010 Linum Software GmbH <support@linum.com>
*
* 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_FW8888
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.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"
/* text mode display? */
#include "drv_generic_text.h"
/* serial port? */
#include "drv_generic_serial.h"
static char Name[] = "FW8888";
/****************************************/
/*** hardware dependant functions ***/
/****************************************/
static int drv_FW8888_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_FW8888_close(void)
{
/* close whatever port you've opened */
drv_generic_serial_close();
return 0;
}
static void drv_FW8888_send_cmd(const unsigned int cmd)
{
char cmd_str[2];
cmd_str[0] = 0x10;
cmd_str[1] = cmd;
drv_generic_serial_write(cmd_str, 2);
}
static void drv_FW8888_send_text(const char *text, const unsigned int len)
{
unsigned int i;
char cmd_str[2];
cmd_str[0] = 0x12;
for (i = 0; i < len; i++) {
cmd_str[1] = text[i];
drv_generic_serial_write(cmd_str, 2);
}
}
/* text mode displays only */
static void drv_FW8888_clear(void)
{
drv_FW8888_send_cmd(0x01);
}
static void drv_FW8888_home(void)
{
drv_FW8888_send_cmd(0x02);
}
static void drv_FW8888_display_off(void)
{
drv_FW8888_send_cmd(0x08);
}
static void drv_FW8888_display_on_cursor_off(void)
{
drv_FW8888_send_cmd(0x0C);
}
static void drv_FW8888_display_on_cursor_on(void)
{
drv_FW8888_send_cmd(0x0E);
}
static void drv_FW8888_backlight_off(void)
{
drv_FW8888_send_cmd(0x38);
}
static void drv_FW8888_backlight_on(void)
{
drv_FW8888_send_cmd(0x39);
}
static void drv_FW8888_set_cursor(int row, int col)
{
int pos;
switch (row) {
case 0:
pos = 0x80 + col;
break;
case 1:
pos = 0xC0 + col;
break;
default:
error("%s: invalid row(%d) or col(%d)", Name, row, col);
return;
}
drv_FW8888_send_cmd(pos);
}
/* text mode displays only */
static void drv_FW8888_write(const int row, const int col, const char *data, int len)
{
/* do the cursor positioning here */
drv_FW8888_set_cursor(row, col);
/* send string to the display */
drv_FW8888_send_text(data, len);
}
/* start text mode display */
static int drv_FW8888_start(const char *section)
{
/* display preferences */
XRES = 5; /* pixel width of one char */
YRES = 8; /* pixel height of one char */
CHARS = 0; /* number of user-defineable characters */
CHAR0 = 0; /* ASCII of first user-defineable char */
DROWS = 2;
DCOLS = 16;
GOTO_COST = -1; /* number of bytes a goto command requires */
/* open communication with the display */
if (drv_FW8888_open(section) < 0) {
return -1;
}
drv_FW8888_clear(); /* clear display */
return 0;
}
/****************************************/
/*** plugins ***/
/****************************************/
/* none */
/****************************************/
/*** 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_FW8888_list(void)
{
printf("Allnet-FW8888");
return 0;
}
/* initialize driver & display */
/* use this function for a text display */
int drv_FW8888_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 = 7; /* pixel height of one char */
CHARS = 0; /* number of user-defineable characters */
CHAR0 = 0; /* ASCII of first user-defineable char */
/* real worker functions */
drv_generic_text_real_write = drv_FW8888_write;
/* start display */
if ((ret = drv_FW8888_start(section)) != 0)
return ret;
if (!quiet) {
char buffer[40];
qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
if (drv_generic_text_greet(buffer, "www.linum.com")) {
sleep(3);
drv_FW8888_clear();
}
}
/* initialize generic text driver */
if ((ret = drv_generic_text_init(section, Name)) != 0)
return ret;
/* register text widget */
wc = Widget_Text;
wc.draw = drv_generic_text_draw;
widget_register(&wc);
/* register plugins */
// AddFunction("LCD::contrast", 1, plugin_contrast);
return 0;
}
/* close driver & display */
/* use this function for a text display */
int drv_FW8888_quit(const int quiet)
{
info("%s: shutting down.", Name);
drv_generic_text_quit();
/* clear display */
drv_FW8888_clear();
/* say goodbye... */
if (!quiet) {
drv_generic_text_greet("goodbye!", NULL);
}
debug("closing connection");
drv_FW8888_close();
return (0);
}
/* use this one for a text display */
DRIVER drv_FW8888 = {
.name = Name,
.list = drv_FW8888_list,
.init = drv_FW8888_init,
.quit = drv_FW8888_quit,
};