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author | Gregory Nutt <gnutt@nuttx.org> | 2014-11-07 09:06:00 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2014-11-07 09:06:00 -0600 |
commit | e5e9211805e01214224d39ac6e6346a38648af61 (patch) | |
tree | b093df86826a9d7ccf5f1590e87ee7bb39119403 /apps/interpreters/bas/vt100.c | |
parent | db67dd9481c27cd71deb658c55f4a6d980cd7b77 (diff) | |
download | nuttx-e5e9211805e01214224d39ac6e6346a38648af61.tar.gz nuttx-e5e9211805e01214224d39ac6e6346a38648af61.tar.bz2 nuttx-e5e9211805e01214224d39ac6e6346a38648af61.zip |
Fix backspace logic which was accidentally removed; Add some VT100 support
Diffstat (limited to 'apps/interpreters/bas/vt100.c')
-rw-r--r-- | apps/interpreters/bas/vt100.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/apps/interpreters/bas/vt100.c b/apps/interpreters/bas/vt100.c new file mode 100644 index 000000000..45bee9852 --- /dev/null +++ b/apps/interpreters/bas/vt100.c @@ -0,0 +1,319 @@ +/**************************************************************************** + * apps/interpreters/bas/vt100.c + * + * Copyright (C) 2014 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/stat.h> +#include <stdio.h> + +#include <nuttx/vt100.h> + +#include "fs.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/* VT100 escape sequences */ + +#if 0 /* Not used */ +static const char g_cursoron[] = VT100_CURSORON; +static const char g_cursoroff[] = VT100_CURSOROFF; +static const char g_cursorhome[] = VT100_CURSORHOME; +static const char g_erasetoeol[] = VT100_CLEAREOL; +#endif +static const char g_clrscreen[] = VT100_CLEARSCREEN; +#if 0 /* Not used */ +static const char g_index[] = VT100_INDEX; +static const char g_revindex[] = VT100_REVINDEX; +static const char g_attriboff[] = VT100_MODESOFF; +static const char g_boldon[] = VT100_BOLD; +static const char g_reverseon[] = VT100_REVERSE; +static const char g_blinkon[] = VT100_BLINK; +static const char g_boldoff[] = VT100_BOLDOFF; +static const char g_reverseoff[] = VT100_REVERSEOFF; +static const char g_blinkoff[] = VT100_BLINKOFF; +#endif + +static const char g_fmtcursorpos[] = VT100_FMT_CURSORPOS; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: vt100_write + * + * Description: + * Write a sequence of bytes to the channel device + * + ****************************************************************************/ + +static void vt100_write(int chn, FAR const char *buffer, size_t buflen) +{ + for (; buflen > 0; buflen--) + { + FS_putChar(chn, *buffer++); + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: vt100_blinkon + * + * Description: + * Enable the blinking attribute at the current cursor location + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_blinkon(int chn) +{ + /* Send the VT100 BLINKON command */ + + vt100_write(chn, g_blinkon, sizeof(g_blinkon)); +} +#endif + +/**************************************************************************** + * Name: vt100_boldon + * + * Description: + * Enable the blinking attribute at the current cursor location + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_boldon(int chn) +{ + /* Send the VT100 BOLDON command */ + + vt100_write(chn, g_boldon, sizeof(g_boldon)); +} +#endif + +/**************************************************************************** + * Name: vt100_reverseon + * + * Description: + * Enable the blinking attribute at the current cursor location + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_reverseon(int chn) +{ + /* Send the VT100 REVERSON command */ + + vt100_write(chn, g_reverseon, sizeof(g_reverseon)); +} +#endif + +/**************************************************************************** + * Name: + * + * Description: + * Disable all previously selected attributes. + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_attriboff(int chn) +{ + /* Send the VT100 ATTRIBOFF command */ + + vt100_write(chn, g_attriboff, sizeof(g_attriboff)); +} +#endif + +/**************************************************************************** + * Name: vt100_cursoron + * + * Description: + * Turn on the cursor + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_cursoron(int chn) +{ + /* Send the VT100 CURSORON command */ + + vt100_write(chn, g_cursoron, sizeof(g_cursoron)); +} +#endif + +/**************************************************************************** + * Name: vt100_cursoroff + * + * Description: + * Turn off the cursor + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_cursoroff(int chn) +{ + /* Send the VT100 CURSOROFF command */ + + vt100_write(chn, g_cursoroff, sizeof(g_cursoroff)); +} +#endif + +/**************************************************************************** + * Name: vt100_cursorhome + * + * Description: + * Move the current cursor to the upper left hand corner of the display + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_cursorhome(int chn) +{ + /* Send the VT100 CURSORHOME command */ + + vt100_write(chn, g_cursorhome, sizeof(g_cursorhome)); +} +#endif + +/**************************************************************************** + * Name: vt100_setcursor + * + * Description: + * Move the current cursor position to position (row,col) + * + ****************************************************************************/ + +void vt100_setcursor(int chn, uint16_t row, uint16_t column) +{ + char buffer[16]; + int len; + + /* Format the cursor position command. The origin is (1,1). */ + + len = snprintf(buffer, 16, g_fmtcursorpos, row + 1, column + 1); + + /* Send the VT100 CURSORPOS command */ + + vt100_write(chn, buffer, len); +} + +/**************************************************************************** + * Name: vt100_clrtoeol + * + * Description: + * Clear the display from the current cursor position to the end of the + * current line. + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_clrtoeol(int chn) +{ + /* Send the VT100 ERASETOEOL command */ + + vt100_write(chn, g_erasetoeol, sizeof(g_erasetoeol)); +} +#endif + +/**************************************************************************** + * Name: vt100_clrscreen + * + * Description: + * Clear the entire display + * + ****************************************************************************/ + +void vt100_clrscreen(int chn) +{ + /* Send the VT100 CLRSCREEN command */ + + vt100_write(chn, g_clrscreen, sizeof(g_clrscreen)); +} + +/**************************************************************************** + * Name: vt100_scrollup + * + * Description: + * Scroll the display up 'nlines' by sending the VT100 INDEX command. + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_scrollup(int chn, uint16_t nlines) +{ + /* Scroll for the specified number of lines */ + + for (; nlines; nlines--) + { + /* Send the VT100 INDEX command */ + + vt100_write(chn, g_index, sizeof(g_index)); + } +} +#endif + +/**************************************************************************** + * Name: vt100_scrolldown + * + * Description: + * Scroll the display down 'nlines' by sending the VT100 REVINDEX command. + * + ****************************************************************************/ + +#if 0 /* Not used */ +void vt100_scrolldown(int chn, uint16_t nlines) +{ + /* Scroll for the specified number of lines */ + + for (; nlines; nlines--) + { + /* Send the VT100 REVINDEX command */ + + vt100_write(chn, g_revindex, sizeof(g_revindex)); + } +#endif |