diff options
Diffstat (limited to 'sys/include/dev')
| -rw-r--r-- | sys/include/dev/cons/cons.h | 5 | ||||
| -rw-r--r-- | sys/include/dev/cons/consvar.h | 84 |
2 files changed, 89 insertions, 0 deletions
diff --git a/sys/include/dev/cons/cons.h b/sys/include/dev/cons/cons.h index 8e2c2c6..3569c52 100644 --- a/sys/include/dev/cons/cons.h +++ b/sys/include/dev/cons/cons.h @@ -33,11 +33,14 @@ #include <sys/types.h> #include <sys/spinlock.h> #include <dev/video/fbdev.h> +#include <dev/cons/consvar.h> struct cons_char { char c; uint32_t fg; uint32_t bg; + uint32_t x; + uint32_t y; }; struct cons_screen { @@ -53,6 +56,8 @@ struct cons_screen { uint32_t ch_row; /* Current row */ uint32_t curs_col; /* Cursor col */ uint32_t curs_row; /* Cursor row */ + struct cons_buf *ib; /* Input buffer */ + struct cons_buf **ob; /* Output buffers */ struct cons_char last_chr; struct spinlock lock; }; diff --git a/sys/include/dev/cons/consvar.h b/sys/include/dev/cons/consvar.h new file mode 100644 index 0000000..483d5f1 --- /dev/null +++ b/sys/include/dev/cons/consvar.h @@ -0,0 +1,84 @@ +/* + * 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 _DEV_CONSVAR_H_ +#define _DEV_CONSVAR_H_ + +#include <sys/types.h> +#include <sys/param.h> + +/* Buffer types */ +#define CONS_BUF_INPUT 0 +#define CONS_BUF_OUTPUT 1 + +/* Buffer flags */ +#define CONS_BUF_CLEAN BIT(0) /* Not recently written to */ + +extern struct cons_screen scr; + +/* + * The keyboard packet is two bytes + * and the bits are as follows: + * + * - 0:7 ~ ASCII character + * - 8:15 ~ Scancode + */ +struct cons_input { + union { + uint8_t chr; + uint8_t scancode; + }; + uint16_t data; +}; + +/* + * A circular buffer for buffering + * keyboard input or console output. + */ +struct cons_buf { + union { + struct cons_input *ibuf; + struct cons_char *obuf; + void *raw; + }; + uint8_t tail; + uint8_t head; + uint8_t type; + uint8_t flags; + size_t len; +}; + +struct cons_buf *cons_new_buf(uint8_t type, size_t len); +int cons_obuf_push(struct cons_buf *bp, struct cons_char c); +int cons_obuf_pop(struct cons_buf *bp, struct cons_char *res); + +int cons_ibuf_push(struct cons_screen *scr, struct cons_input input); +int cons_ibuf_pop(struct cons_screen *scr, struct cons_input *res); + +#endif /* !_DEV_CONSVAR_H_ */ |