mmdolze
3bb27d1611
the original font of the HD44780 with European character set, but includes only characters from ISO 8859-1 and has been extended with bar graph and icons. The t6963 driver now has its size to be configured in pixels! The size in characters is automatically calculated based on the cell size. This makes internal calculations more easy.
120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
/*-
|
|
* Base driver module for Toshiba T6963 based LCD displays.
|
|
*
|
|
* Parts of this file are based on the kernel driver by
|
|
* Alexander Frink <Alexander.Frink@Uni-Mainz.DE>
|
|
*
|
|
* Copyright (c) 2001 Manuel Stahl <mythos@xmythos.de>
|
|
* 2011 Markus Dolze
|
|
*
|
|
* This file is released under the GNU General Public License. Refer to the
|
|
* COPYING file distributed with this package.
|
|
*/
|
|
|
|
#ifndef T6963_H
|
|
#define T6963_H
|
|
|
|
#define DEFAULT_CELL_WIDTH 6
|
|
#define DEFAULT_CELL_HEIGHT 8
|
|
#define DEFAULT_SIZE "128x64"
|
|
#define DEFAULT_PORT 0x378
|
|
|
|
/*
|
|
* These are the maximum values the controller supports in single-scan
|
|
* setting (note that heigth of 128 is possible with dual-scan setting, too.
|
|
* This will not work with this driver, but there is no possibility to check
|
|
* this in software.
|
|
*/
|
|
#define T6963_MAX_WIDTH 80 * DEFAULT_CELL_WIDTH
|
|
#define T6963_MAX_HEIGHT 128
|
|
|
|
/* RAM layout base addresses (suitable for 8 KB RAM) */
|
|
#define TEXT_BASE 0x0000 /* 1K, fine for 40x16 or 80x8 */
|
|
#define GRAPHIC_BASE 0x0400 /* 5K, fine for 240x128 */
|
|
#define CHARGEN_BASE 0x1800 /* 2K, required for 256 CC */
|
|
|
|
/* 'Registers setting' commands */
|
|
#define SET_CURSOR_POINTER 0x21
|
|
#define SET_OFFSET_REGISTER 0x22
|
|
#define SET_ADDRESS_POINTER 0x24
|
|
|
|
/* 'Set control word' commands */
|
|
#define SET_TEXT_HOME_ADDRESS 0x40
|
|
#define SET_TEXT_AREA 0x41
|
|
#define SET_GRAPHIC_HOME_ADDRESS 0x42
|
|
#define SET_GRAPHIC_AREA 0x43
|
|
|
|
/* 'Mode set' command and options*/
|
|
#define SET_MODE 0x80
|
|
#define OR_MODE 0x00
|
|
#define EXOR_MODE 0x01
|
|
#define AND_MODE 0x03
|
|
#define ATTRIBUTE_MODE 0x04
|
|
#define INTERNAL_CG 0x00
|
|
#define EXTERNAL_CG 0x08
|
|
|
|
/* 'Display mode' command and options */
|
|
#define SET_DISPLAY_MODE 0x90
|
|
#define BLINK_ON 0x01
|
|
#define CURSOR_ON 0x02
|
|
#define TEXT_ON 0x04
|
|
#define GRAPHIC_ON 0x08
|
|
|
|
/* 'Cursor pattern select' command */
|
|
#define SET_CURSOR_PATTERN 0xa0
|
|
|
|
/* 'Data read/write' commands */
|
|
#define DATA_WRITE_INC 0xc0
|
|
#define DATA_READ_INC 0xc1
|
|
#define DATA_WRITE_DEC 0xc2
|
|
#define DATA_READ_DEC 0xc3
|
|
#define DATA_WRITE 0xc4
|
|
#define DATA_READ 0xc5
|
|
|
|
/* 'Data auto read/write' commands */
|
|
#define AUTO_WRITE 0xb0
|
|
#define AUTO_READ 0xb1
|
|
#define AUTO_RESET 0xb2
|
|
|
|
/* 'Status read' anwer codes */
|
|
#define STA0 0x01
|
|
#define STA1 0x02
|
|
#define STA3 0x08
|
|
|
|
/* Macros to make port usage more readable */
|
|
#define T6963_DATA_PORT(p) (p)
|
|
#define T6963_STATUS_PORT(p) ((p)+1)
|
|
#define T6963_CONTROL_PORT(p) ((p)+2)
|
|
|
|
/* Data types */
|
|
typedef unsigned short u16;
|
|
typedef unsigned char u8;
|
|
|
|
/* API functions */
|
|
MODULE_EXPORT int t6963_init (Driver *drvthis);
|
|
MODULE_EXPORT void t6963_close (Driver *drvthis);
|
|
MODULE_EXPORT int t6963_width (Driver *drvthis);
|
|
MODULE_EXPORT int t6963_height (Driver *drvthis);
|
|
MODULE_EXPORT void t6963_clear (Driver *drvthis);
|
|
MODULE_EXPORT void t6963_flush (Driver *drvthis);
|
|
MODULE_EXPORT void t6963_string (Driver *drvthis, int x, int y, const char string[]);
|
|
MODULE_EXPORT void t6963_chr (Driver *drvthis, int x, int y, char c);
|
|
MODULE_EXPORT void t6963_vbar (Driver *drvthis, int x, int y, int len, int promille, int options);
|
|
MODULE_EXPORT void t6963_hbar (Driver *drvthis, int x, int y, int len, int promille, int options);
|
|
MODULE_EXPORT void t6963_num (Driver *drvthis, int x, int num);
|
|
MODULE_EXPORT int t6963_icon (Driver *drvthis, int x, int y, int icon);
|
|
MODULE_EXPORT void t6963_set_char (Driver *drvthis, int n, unsigned char *dat);
|
|
|
|
/* Internal functions */
|
|
static void t6963_graphic_clear(Driver *drvthis);
|
|
static void t6963_set_nchar(Driver *drvthis, int n, int num);
|
|
static inline int t6963_low_dsp_ready(Driver *drvthis, u8 sta);
|
|
static void t6963_low_data(Driver *drvthis, u8 byte);
|
|
static void t6963_low_auto_write(Driver *drvthis, u8 byte);
|
|
static void t6963_low_command(Driver *drvthis, u8 byte);
|
|
static void t6963_low_command_byte(Driver *drvthis, u8 cmd, u8 byte);
|
|
static void t6963_low_command_word(Driver *drvthis, u8 cmd, u16 word);
|
|
static inline void t6963_low_send(Driver * drvthis, u8 type, u8 byte);
|
|
|
|
#endif
|