/*- * Copyright (c) 2009 The FreeBSD Foundation * All rights reserved. * * This software was developed by Ed Schouten under sponsorship from the * FreeBSD Foundation. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $FreeBSD$ */ #ifndef _SYS_TERMINAL_H_ #define _SYS_TERMINAL_H_ #include #include #include #include #include #include #include struct terminal; struct thread; struct tty; /* * The terminal layer is an abstraction on top of the TTY layer and the * console interface. It can be used by system console drivers to * easily interact with the kernel console and TTYs. * * Terminals contain terminal emulators, which means console drivers * don't need to implement their own terminal emulator. The terminal * emulator deals with UTF-8 exclusively. This means that term_char_t, * the data type used to store input/output characters will always * contain Unicode codepoints. * * To save memory usage, the top bits of term_char_t will contain other * attributes, like colors. Right now term_char_t is composed as * follows: * * Bits Meaning * 0-20: Character value * 21-25: Bold, underline, blink, reverse, right part of CJK fullwidth character * 26-28: Foreground color * 29-31: Background color */ typedef uint32_t term_char_t; #define TCHAR_CHARACTER(c) ((c) & 0x1fffff) #define TCHAR_FORMAT(c) (((c) >> 21) & 0x1f) #define TCHAR_FGCOLOR(c) (((c) >> 26) & 0x7) #define TCHAR_BGCOLOR(c) ((c) >> 29) typedef teken_color_t term_color_t; #define TCOLOR_LIGHT(c) ((c) | 0x8) #define TCOLOR_DARK(c) ((c) & ~0x8) typedef teken_pos_t term_pos_t; typedef teken_rect_t term_rect_t; typedef void tc_cursor_t(struct terminal *tm, const term_pos_t *p); typedef void tc_putchar_t(struct terminal *tm, const term_pos_t *p, term_char_t c); typedef void tc_fill_t(struct terminal *tm, const term_rect_t *r, term_char_t c); typedef void tc_copy_t(struct terminal *tm, const term_rect_t *r, const term_pos_t *p); typedef void tc_param_t(struct terminal *tm, int cmd, unsigned int arg); typedef void tc_done_t(struct terminal *tm); typedef void tc_cnprobe_t(struct terminal *tm, struct consdev *cd); typedef int tc_cngetc_t(struct terminal *tm); typedef void tc_opened_t(struct terminal *tm, int opened); typedef int tc_ioctl_t(struct terminal *tm, u_long cmd, caddr_t data, struct thread *td); typedef int tc_mmap_t(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr, int nprot, vm_memattr_t *memattr); typedef void tc_bell_t(struct terminal *tm); struct terminal_class { /* Terminal emulator. */ tc_cursor_t *tc_cursor; tc_putchar_t *tc_putchar; tc_fill_t *tc_fill; tc_copy_t *tc_copy; tc_param_t *tc_param; tc_done_t *tc_done; /* Low-level console interface. */ tc_cnprobe_t *tc_cnprobe; tc_cngetc_t *tc_cngetc; /* Misc. */ tc_opened_t *tc_opened; tc_ioctl_t *tc_ioctl; tc_mmap_t *tc_mmap; tc_bell_t *tc_bell; }; struct terminal { const struct terminal_class *tm_class; void *tm_softc; struct mtx tm_mtx; struct tty *tm_tty; teken_t tm_emulator; struct winsize tm_winsize; unsigned int tm_flags; #define TF_MUTE 0x1 /* Drop incoming data. */ #define TF_BELL 0x2 /* Bell needs to be sent. */ #define TF_CONS 0x4 /* Console device (needs spinlock). */ struct consdev *consdev; }; #ifdef _KERNEL struct terminal *terminal_alloc(const struct terminal_class *tc, void *softc); void terminal_maketty(struct terminal *tm, const char *fmt, ...); void terminal_set_winsize_blank(struct terminal *tm, const struct winsize *size, int blank); void terminal_set_winsize(struct terminal *tm, const struct winsize *size); void terminal_mute(struct terminal *tm, int yes); void terminal_input_char(struct terminal *tm, term_char_t c); void terminal_input_raw(struct terminal *tm, char c); void terminal_input_special(struct terminal *tm, unsigned int k); void termcn_cnregister(struct terminal *tm); /* Kernel console helper interface. */ extern const struct consdev_ops termcn_cnops; #define TERMINAL_DECLARE_EARLY(name, class, softc) \ static struct terminal name = { \ .tm_class = &class, \ .tm_softc = softc, \ .tm_flags = TF_CONS, \ }; \ CONSOLE_DEVICE(name ## _consdev, termcn_cnops, &name) #endif /* _KERNEL */ #endif /* !_SYS_TERMINAL_H_ */