mmdolze
68d4903b4b
* Add more documentation about the inner working of this driver. * Consolidate constant definitions. * Stop the 'include-mania': Only include necessary header files within the .c files. * Use lpt-port.h to define LPT port register values. * Modify some comments to conform the the style guide.
113 lines
4.4 KiB
C
113 lines
4.4 KiB
C
/*-
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* Copyright (C) 2006 Stefan Herdler
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*
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* This driver is based on wirz-sli.c, hd44780.c, drv_base.c and NoritakeVFD
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* driver. It may contain parts of other drivers of this package too.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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*/
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/*
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* 2006-05-16 Version 0.3: everything should work (not all hardware tested!)
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*/
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#ifndef SERIALVFD_H
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#define SERIALVFD_H
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#define CCMODE_STANDARD 0 /* only char 0 is used for heartbeat */
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#define CCMODE_VBAR 1
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#define CCMODE_HBAR 2
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#define CCMODE_BIGNUM 3
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#define CCMODE_BIGCHAR 4
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#define CCMODE_CUSTOM 5
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#define DEFAULT_CELL_WIDTH 5
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#define DEFAULT_CELL_HEIGHT 7
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#define DEFAULT_DEVICE "/dev/lcd"
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#define DEFAULT_SPEED 9600
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#define DEFAULT_BRIGHTNESS 140
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#define DEFAULT_SIZE "20x2"
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#define DEFAULT_DISPLAYTYPE 0
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#define DEFAULT_PARA_WAIT 2
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#define DEFAULT_OFF_BRIGHTNESS 300
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#define DEFAULT_ON_BRIGHTNESS 1000
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#define DEFAULT_LPTPORT 0x378
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MODULE_EXPORT int serialVFD_init (Driver *drvthis);
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MODULE_EXPORT void serialVFD_close (Driver *drvthis);
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MODULE_EXPORT int serialVFD_width (Driver *drvthis);
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MODULE_EXPORT int serialVFD_height (Driver *drvthis);
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MODULE_EXPORT int serialVFD_cellwidth (Driver *drvthis);
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MODULE_EXPORT int serialVFD_cellheight (Driver *drvthis);
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MODULE_EXPORT void serialVFD_clear (Driver *drvthis);
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MODULE_EXPORT void serialVFD_flush (Driver *drvthis);
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MODULE_EXPORT void serialVFD_string (Driver *drvthis, int x, int y, const char string[]);
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MODULE_EXPORT void serialVFD_chr (Driver *drvthis, int x, int y, char c);
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MODULE_EXPORT void serialVFD_vbar (Driver *drvthis, int x, int y, int len, int promille, int options);
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MODULE_EXPORT void serialVFD_hbar (Driver *drvthis, int x, int y, int len, int promille, int options);
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MODULE_EXPORT void serialVFD_num (Driver *drvthis, int x, int num);
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MODULE_EXPORT int serialVFD_icon(Driver *drvthis, int x, int y, int icon);
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MODULE_EXPORT void serialVFD_set_char (Driver *drvthis, int n, unsigned char *dat);
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MODULE_EXPORT int serialVFD_get_free_chars (Driver *drvthis);
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MODULE_EXPORT int serialVFD_get_brightness (Driver *drvthis, int state);
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MODULE_EXPORT void serialVFD_set_brightness (Driver *drvthis, int state, int promille);
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MODULE_EXPORT void serialVFD_backlight (Driver *drvthis, int on);
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MODULE_EXPORT const char * serialVFD_get_info( Driver *drvthis );
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/** private data for the \c serialVFD driver */
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typedef struct serialVFD_private_data {
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int use_parallel; /**< use parallel port? */
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unsigned short port; /**< port in parallel mode */
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char device[200]; /**> device in serial mode */
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int fd; /**< file descriptor in serial mode */
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int speed; /**< Speed in serial mode */
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/* dimensions */
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int width, height;
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int cellwidth, cellheight;
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/* framebuffer and buffer for old LCD contents */
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unsigned char *framebuf;
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unsigned char *backingstore;
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int ccmode;
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int on_brightness;
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int off_brightness;
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int hw_brightness;
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int customchars;
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int predefined_hbar; /**< display has predefined hbar-characters */
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int predefined_vbar; /**< display has predefined vbar-characters */
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int ISO_8859_1;
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unsigned int refresh_timer;
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unsigned int para_wait;
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unsigned char charmap[129];
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int display_type; /**< display type */
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int last_custom; /**< last custom character written */
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unsigned char custom_char[31][7]; /**< stored custom characters */
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unsigned char custom_char_store[31][7]; /**< custom characters backingstore */
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unsigned char hw_cmd[11][10]; /**< table of hardwarespecific commands */
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int usr_chr_dot_assignment[57]; /**< how to setup usercharacters */
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unsigned int usr_chr_mapping[31]; /**< where to place the usercharacters (0..30) in the asciicode */
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unsigned int usr_chr_load_mapping[31]; /**< needed for displays with different read and write mapping */
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int hbar_cc_offset; /**< character offset of the bars */
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int vbar_cc_offset; /**< character offset of the bars */
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char info[255];
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} PrivateData;
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#endif
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