369 lines
10 KiB
C
369 lines
10 KiB
C
/****************************************************************************
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* apps/interpreters/bas/bas_vt100.c
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <nuttx/vt100.h>
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#include "bas_fs.h"
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#include "bas_vt100.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* VT100 escape sequences */
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#if 0 /* Not used */
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static const char g_cursoron[] = VT100_CURSORON;
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static const char g_cursoroff[] = VT100_CURSOROFF;
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#endif
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static const char g_cursorhome[] = VT100_CURSORHOME;
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#if 0 /* Not used */
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static const char g_erasetoeol[] = VT100_CLEAREOL;
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#endif
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static const char g_clrscreen[] = VT100_CLEARSCREEN;
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#if 0 /* Not used */
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static const char g_index[] = VT100_INDEX;
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static const char g_revindex[] = VT100_REVINDEX;
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static const char g_attriboff[] = VT100_MODESOFF;
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static const char g_boldon[] = VT100_BOLD;
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static const char g_reverseon[] = VT100_REVERSE;
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static const char g_blinkon[] = VT100_BLINK;
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static const char g_boldoff[] = VT100_BOLDOFF;
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static const char g_reverseoff[] = VT100_REVERSEOFF;
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static const char g_blinkoff[] = VT100_BLINKOFF;
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#endif
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static const char g_fmt_cursorpos[] = VT100_FMT_CURSORPOS;
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static const char g_fmt_forecolor[] = VT100_FMT_FORE_COLOR;
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static const char g_fmt_backcolor[] = VT100_FMT_BACK_COLOR;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: vt100_write
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*
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* Description:
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* Write a sequence of bytes to the channel device
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*
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****************************************************************************/
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static void vt100_write(int chn, FAR const char *buffer, size_t buflen)
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{
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for (; buflen > 0; buflen--)
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{
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FS_putChar(chn, *buffer++);
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: vt100_blinkon
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*
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* Description:
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* Enable the blinking attribute at the current cursor location
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_blinkon(int chn)
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{
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/* Send the VT100 BLINKON command */
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vt100_write(chn, g_blinkon, sizeof(g_blinkon));
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}
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#endif
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/****************************************************************************
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* Name: vt100_boldon
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*
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* Description:
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* Enable the blinking attribute at the current cursor location
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_boldon(int chn)
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{
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/* Send the VT100 BOLDON command */
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vt100_write(chn, g_boldon, sizeof(g_boldon));
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}
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#endif
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/****************************************************************************
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* Name: vt100_reverseon
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*
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* Description:
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* Enable the blinking attribute at the current cursor location
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_reverseon(int chn)
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{
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/* Send the VT100 REVERSON command */
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vt100_write(chn, g_reverseon, sizeof(g_reverseon));
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}
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#endif
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/****************************************************************************
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* Name:
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*
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* Description:
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* Disable all previously selected attributes.
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_attriboff(int chn)
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{
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/* Send the VT100 ATTRIBOFF command */
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vt100_write(chn, g_attriboff, sizeof(g_attriboff));
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}
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#endif
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/****************************************************************************
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* Name: vt100_cursoron
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*
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* Description:
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* Turn on the cursor
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_cursoron(int chn)
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{
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/* Send the VT100 CURSORON command */
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vt100_write(chn, g_cursoron, sizeof(g_cursoron));
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}
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#endif
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/****************************************************************************
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* Name: vt100_cursoroff
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*
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* Description:
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* Turn off the cursor
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_cursoroff(int chn)
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{
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/* Send the VT100 CURSOROFF command */
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vt100_write(chn, g_cursoroff, sizeof(g_cursoroff));
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}
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#endif
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/****************************************************************************
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* Name: vt100_cursorhome
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*
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* Description:
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* Move the current cursor to the upper left hand corner of the display
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*
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****************************************************************************/
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void vt100_cursorhome(int chn)
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{
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/* Send the VT100 CURSORHOME command */
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vt100_write(chn, g_cursorhome, sizeof(g_cursorhome));
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}
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/****************************************************************************
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* Name: vt100_setcursor
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*
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* Description:
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* Move the current cursor position to position (row,col)
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*
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****************************************************************************/
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void vt100_setcursor(int chn, uint16_t row, uint16_t column)
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{
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char buffer[16];
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int len;
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/* Format the cursor position command. The origin is (1,1). */
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len = snprintf(buffer, 16, g_fmt_cursorpos, row + 1, column + 1);
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/* Send the VT100 CURSORPOS command */
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vt100_write(chn, buffer, len);
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}
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/****************************************************************************
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* Name: vt100_clrtoeol
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*
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* Description:
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* Clear the display from the current cursor position to the end of the
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* current line.
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_clrtoeol(int chn)
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{
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/* Send the VT100 ERASETOEOL command */
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vt100_write(chn, g_erasetoeol, sizeof(g_erasetoeol));
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}
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#endif
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/****************************************************************************
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* Name: vt100_clrscreen
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*
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* Description:
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* Clear the entire display
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*
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****************************************************************************/
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void vt100_clrscreen(int chn)
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{
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/* Send the VT100 CLRSCREEN command */
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vt100_write(chn, g_clrscreen, sizeof(g_clrscreen));
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}
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/****************************************************************************
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* Name: vt100_scrollup
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*
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* Description:
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* Scroll the display up 'nlines' by sending the VT100 INDEX command.
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_scrollup(int chn, uint16_t nlines)
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{
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/* Scroll for the specified number of lines */
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for (; nlines; nlines--)
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{
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/* Send the VT100 INDEX command */
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vt100_write(chn, g_index, sizeof(g_index));
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}
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}
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#endif
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/****************************************************************************
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* Name: vt100_scrolldown
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*
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* Description:
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* Scroll the display down 'nlines' by sending the VT100 REVINDEX command.
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*
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****************************************************************************/
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#if 0 /* Not used */
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void vt100_scrolldown(int chn, uint16_t nlines)
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{
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/* Scroll for the specified number of lines */
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for (; nlines; nlines--)
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{
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/* Send the VT100 REVINDEX command */
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vt100_write(chn, g_revindex, sizeof(g_revindex));
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}
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#endif
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/****************************************************************************
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* Name: vt100_foreground_color
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*
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* Description:
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* Set the foreground color
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*
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****************************************************************************/
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void vt100_foreground_color(int chn, uint8_t color)
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{
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char buffer[16];
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int len;
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/* Format the foreground color command. */
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DEBUGASSERT(color < 10);
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len = snprintf(buffer, 16, g_fmt_forecolor, color);
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/* Send the VT100 foreground color command */
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vt100_write(chn, buffer, len);
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}
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/****************************************************************************
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* Name: vt100_background_color
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*
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* Description:
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* Set the background color
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*
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****************************************************************************/
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void vt100_background_color(int chn, uint8_t color)
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{
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char buffer[16];
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int len;
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/* Format the background color command. */
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DEBUGASSERT(color < 10);
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len = snprintf(buffer, 16, g_fmt_backcolor, color);
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/* Send the VT100 background color command */
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vt100_write(chn, buffer, len);
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}
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