From c5ed30f4af541ee134364789a33a0baee370b4ee Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Sun, 3 Aug 2025 16:11:29 -0400 Subject: liboda: Add initial input subsystem This commit introduces the initial input subsystem and adds basic keyboard handling via a callback defined by the compositor. Signed-off-by: Ian Moffett --- lib/liboda/include/liboda/input.h | 65 +++++++++++++++++++++++++++++++++++++++ lib/liboda/src/input.c | 61 ++++++++++++++++++++++++++++++++++++ 2 files changed, 126 insertions(+) create mode 100644 lib/liboda/include/liboda/input.h create mode 100644 lib/liboda/src/input.c (limited to 'lib') diff --git a/lib/liboda/include/liboda/input.h b/lib/liboda/include/liboda/input.h new file mode 100644 index 0000000..9906329 --- /dev/null +++ b/lib/liboda/include/liboda/input.h @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * 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 of Hyra 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. + */ + +#ifndef LIBODA_INPUT_H +#define LIBODA_INPUT_H + +#include +#include +#include + +/* + * Macros to help extract scancode and + * character + */ +#define ODA_SCANCODE(KEY) ((KEY) >> 8) +#define ODA_KEYCHAR(KEY) ((char )(KEY) & 0xFF) + +/* + * Represents a key press + * + * @scancode: Scancode + * @ch: Character + */ +struct oda_key { + uint8_t scancode; + char ch; +}; + +/* + * ODA keyboard object for managing keyboard + * input. + */ +struct oda_kbd { + int(*handle_keyev)(struct oda_kbd *kbd, struct oda_key *key); +}; + +int oda_kbd_dispatch(struct oda_kbd *kbd); + +#endif /* !LIBODA_INPUT_H */ diff --git a/lib/liboda/src/input.c b/lib/liboda/src/input.c new file mode 100644 index 0000000..88c4256 --- /dev/null +++ b/lib/liboda/src/input.c @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * 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 of Hyra 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. + */ + +#include +#include +#include +#include +#include + +/* + * Dispatch keyboard events. This is typically + * called in an event loop so that keyboard events + * are handled per iteration. + * + * @kbd: Keyboard to monitor + */ +int +oda_kbd_dispatch(struct oda_kbd *kbd) +{ + struct oda_key key; + int input; + + if (kbd == NULL) { + return -EINVAL; + } + + /* Attempt to grab the input */ + if ((input = getchar()) < 0) { + return -EAGAIN; + } + + key.scancode = ODA_SCANCODE(input); + key.ch = ODA_KEYCHAR(input); + return kbd->handle_keyev(kbd, &key); +} -- cgit v1.2.3