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59d3a0d0ae
Refactor the LVGL terminal into a shared core (lvglterm.c) plus two selectable input variants: the existing on-screen touch keyboard (lvglterm_touch.c) and a new physical keyboard variant (lvglterm_kbd.c) that reads key events from a /dev/kbdN device and streams them to the shell. The input source is chosen with a Kconfig choice (touch by default, keeping the previous behaviour). The keyboard variant reads its device from CONFIG_EXAMPLES_LVGLTERM_KBD_DEV (default /dev/kbd0), overridable by the first command-line argument, and scrolls the output with the Fn cursor keys. A font choice (UNSCII 8 or 16) is added for low-resolution displays. Signed-off-by: Jorge Guzman <jorge.gzm@gmail.com>
75 lines
3 KiB
C
75 lines
3 KiB
C
/****************************************************************************
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* apps/examples/lvglterm/lvglterm.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __APPS_EXAMPLES_LVGLTERM_LVGLTERM_H
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#define __APPS_EXAMPLES_LVGLTERM_LVGLTERM_H
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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 <stdbool.h>
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#include <lvgl/lvgl.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Read and Write ends of the NSH pipes */
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#define READ_PIPE 0
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#define WRITE_PIPE 1
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* Shared state owned by the core (lvglterm.c). The input variant writes the
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* shell input to g_nsh_stdin, adds its widgets under g_col (styled with
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* g_terminal_style) and may render into g_output.
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*/
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extern int g_nsh_stdin[2]; /* Input variant -> NSH stdin */
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extern lv_obj_t *g_col; /* Column container (widget parent) */
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extern lv_obj_t *g_output; /* NSH output text area */
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extern lv_style_t g_terminal_style; /* Monospaced font style */
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/* Shared helpers provided by the core */
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bool lvglterm_has_input(int fd);
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void lvglterm_add_output(FAR const char *buf, int len);
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/* Provided by the selected input variant (lvglterm_touch.c or
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* lvglterm_kbd.c). lvglterm_input_create() sets up the input source under
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* g_col and wires it to g_nsh_stdin. lvglterm_input_poll() runs on every
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* LVGL timer tick (LVGL thread) for periodic work; it may be a no-op.
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*/
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void lvglterm_input_create(int argc, FAR char *argv[]);
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void lvglterm_input_poll(void);
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#endif /* __APPS_EXAMPLES_LVGLTERM_LVGLTERM_H */
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