diff options
Diffstat (limited to 'oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_SimpleLCD.c.svn-base')
| -rw-r--r-- | oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_SimpleLCD.c.svn-base | 350 |
1 files changed, 0 insertions, 350 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_SimpleLCD.c.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_SimpleLCD.c.svn-base deleted file mode 100644 index 482b67af..00000000 --- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_SimpleLCD.c.svn-base +++ /dev/null @@ -1,350 +0,0 @@ -/* $Id$ - * $URL$ - * - * driver for a simple serial terminal. - * - * Copyright (C) 2005 Julien Aube <ob@obconseil.net> - * Copyright (C) 2005 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. - * - */ - -/* - * This driver simply send out caracters on the serial port, without any - * formatting instructions for a particular LCD device. - * This is useful for custom boards of for very simple LCD. - * - * I use it for tests on a custom-made board based on a AVR microcontroler - * and also for driver a Point-of-Sale text-only display. - * I assume the following : - * - CR (0x0d) Return to the begining of the line without erasing, - * - LF (0x0a) Initiate a new line (but without sending the cursor to - * the begining of the line) - * - BS (0x08) Move the cursor to the previous caracter (but does no erase it). - * - It's not possible to return to the first line. Thus a back buffer is used - * in this driver. - * - * ******** UPDATE ********* - * I have added a "VT-100 Compatible mode" that allows the driver to support - * control-sequence code. This greatly reduce flickering and eliminate the need - * for the back-buffer. But it is optional since all displays cannot support them. - * Here are the codes: - * Delete the display (but does not move the cursor) : - * "ESC [ 2 J" (0x1b 0x5b 0x32 0x4a) - * Position the cursor : - * "ESC [ YY ; XX H" ( 0x1b 0x5b YY 0x3b XX 0x48 ) where YY is the ascii for the line - * number, and XX is the ascii for the column number ( first line/column is '1', not zero) - * Delete to the end of line from current cursor position : - * "ESC [ 0 K" ( 0x1b 0x5b 0x30 0x4b ) - * Set Country Code : - * "ESC R NN" (0x1b 0x52 NN) where NN is the country code *in byte, NOT ascii*. - * The default is 0 (USA), see below for specific countries. - * the list of accessible characters page are available on this page : - * http://www.wincor-nixdorf.com/internet/com/Services/Support/TechnicalSupport/POSSystems - * /Manuals/BAxx/index.html - * Get the display identification : (Doesn't work reliably, timing issues here) - * "ESC [ 0 c" ( 0x1b 0x5b 0x30 0x63). Return a string which look like this : - * ESC [ ? M ; NN ; OO ; PP ; QQ c) where M is type of display (2 for VFD), - * NN is the rom version, 00 is the current caracter set, PP is the number of lines and - * QQ the number of colomns. - * - * - * A "bar" capability is now provided if the config file has a "BarCharValue" parameter in it. - * - * The code come mostly taken from the LCDTerm driver in LCD4Linux, from - * Michaels Reinelt, many thanks to him. - * - * This driver is released under the GPL. - */ - -/* - * - * exported fuctions: - * - * struct DRIVER drv_SimpleLCD - * - */ - -#include "config.h" - -#include <stdlib.h> -#include <unistd.h> -#include <string.h> - -#include "debug.h" -#include "cfg.h" -#include "qprintf.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_serial.h" - - -static char Name[] = "SimpleLCD"; -static char *backbuffer = 0; -static int backbuffer_size = 0; -static int vt100_mode = 0; -static unsigned char bar_char = 0; - -/****************************************/ -/*** hardware dependant functions ***/ -/****************************************/ - -/** No clear function on SimpleLCD : Just send CR-LF * number of lines **/ -static void drv_SL_simple_clear(void) -{ - char cmd[2]; - int i; - cmd[0] = '\r'; - cmd[1] = '\n'; - for (i = 0; i < DROWS; ++i) { - drv_generic_serial_write(cmd, 2); - } - memset(backbuffer, ' ', backbuffer_size); -} - -/** vt-100 mode : send the ESC-code **/ -static void drv_SL_vt100_clear(void) -{ - char cmd[4]; - cmd[0] = 0x1b; - cmd[1] = '['; - cmd[2] = '2'; - cmd[3] = 'J'; - drv_generic_serial_write(cmd, 4); - -} - -static void drv_SL_clear(void) -{ - vt100_mode == 1 ? drv_SL_vt100_clear() : drv_SL_simple_clear(); -} - - -/* If full_commit = true, then the whole buffer is to be sent to screen. - if full_commit = false, then only the last line is to be sent (faster on slow screens) -*/ - -static void drv_SL_commit(int full_commit) -{ - int row; - char cmd[2] = { '\r', '\n' }; - if (full_commit) { - for (row = 0; row < DROWS; row++) { - drv_generic_serial_write(cmd, 2); - drv_generic_serial_write(backbuffer + (DCOLS * row), DCOLS); - } - } else { - drv_generic_serial_write(cmd, 1); /* Go to the beginning of the line only */ - drv_generic_serial_write(backbuffer + (DCOLS * (DROWS - 1)), DCOLS); - } -} - -static void drv_SL_simple_write(const int row, const int col, const char *data, int len) -{ - memcpy(backbuffer + (row * DCOLS) + col, data, len); - if (row == DROWS - 1) - drv_SL_commit(0); - else - drv_SL_commit(1); -} - -static void drv_SL_vt100_write(const int row, const int col, const char *data, int len) -{ - char cmd[8]; - cmd[0] = 0x1b; - cmd[1] = '['; - cmd[2] = row + '1'; - cmd[3] = ';'; - cmd[4] = (col / 10) + '0'; - cmd[5] = (col % 10) + '1'; - cmd[6] = 'H'; - drv_generic_serial_write(cmd, 7); - drv_generic_serial_write(data, len); -} - - -static int drv_SL_start(const char *section, const int quiet) -{ - int rows = -1, cols = -1; - int value; - unsigned int flags = 0; - char *s; - char *model = 0; - - vt100_mode = 0; - model = cfg_get(section, "Model", "generic"); - if (model != NULL && *model != '\0') { - if (strcasecmp("vt100", model) == 0) - vt100_mode = 1; - } - - cfg_number(section, "BarCharValue", 0, 0, 255, &value); - bar_char = value; - cfg_number(section, "Options", 0, 0, 0xffff, &value); - flags = value; - if (drv_generic_serial_open(section, Name, flags) < 0) - return -1; - - s = cfg_get(section, "Size", NULL); - if (s == NULL || *s == '\0') { - error("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); - return -1; - } - if (sscanf(s, "%dx%d", &cols, &rows) != 2 || rows < 1 || cols < 1) { - error("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source()); - free(s); - return -1; - } - - DROWS = rows; - DCOLS = cols; - - if (!vt100_mode) { - backbuffer_size = DROWS * DCOLS; - backbuffer = malloc(backbuffer_size); - if (!backbuffer) { - return -1; - } - } - - /* real worker functions */ - if (vt100_mode) { - drv_generic_text_real_write = drv_SL_vt100_write; - } else { - drv_generic_text_real_write = drv_SL_simple_write; - } - - drv_SL_clear(); /* clear */ - - - if (!quiet) { - char buffer[40]; - qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); - if (drv_generic_text_greet(buffer, NULL)) { - sleep(3); - drv_SL_clear(); - } - } - - return 0; -} - - -/****************************************/ -/*** plugins ***/ -/****************************************/ - -/* none */ - - -/****************************************/ -/*** widget callbacks ***/ -/****************************************/ - - -/* using drv_generic_text_draw(W) */ - - -/****************************************/ -/*** exported functions ***/ -/****************************************/ - - -/* list models */ -int drv_SL_list(void) -{ - printf("generic vt100"); - return 0; -} - - -/* initialize driver & display */ -int drv_SL_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 = 0; /* number of user-defineable characters */ - CHAR0 = 0; /* ASCII of first user-defineable char */ - - GOTO_COST = -1; /* number of bytes a goto command requires */ - - - /* start display */ - if ((ret = drv_SL_start(section, quiet)) != 0) - return ret; - - /* 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 */ - /* none */ - - return 0; -} - - -/* close driver & display */ -int drv_SL_quit(const int quiet) -{ - - info("%s: shutting down.", Name); - - drv_generic_text_quit(); - - /* clear display */ - drv_SL_clear(); - - /* say goodbye... */ - if (!quiet) { - drv_generic_text_greet("goodbye!", NULL); - } - - drv_generic_serial_close(); - - if (backbuffer) { - free(backbuffer); - backbuffer = 0; - backbuffer_size = 0; - } - return (0); -} - - -DRIVER drv_SimpleLCD = { - .name = Name, - .list = drv_SL_list, - .init = drv_SL_init, - .quit = drv_SL_quit, -}; |