2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2009, 2013 The FreeBSD Foundation
7 * This software was developed by Ed Schouten under sponsorship from the
10 * Portions of this software were developed by Oleksandr Rybalko
11 * under sponsorship from the FreeBSD Foundation.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 #include <sys/param.h>
41 #include <sys/_lock.h>
42 #include <sys/_mutex.h>
43 #include <sys/callout.h>
44 #include <sys/condvar.h>
46 #include <sys/consio.h>
48 #include <sys/mouse.h>
49 #include <sys/terminal.h>
50 #include <sys/sysctl.h>
53 #include "opt_syscons.h"
54 #include "opt_splash.h"
58 #define VT_MAXWINDOWS MAXCONS
60 #define VT_MAXWINDOWS 12
64 #ifndef VT_ALT_TO_ESC_HACK
65 #define VT_ALT_TO_ESC_HACK 1
68 #define VT_CONSWINDOW 0
70 #if defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE)
71 #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON3DOWN /* right button */
72 #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON2DOWN /* not really used */
74 #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON2DOWN /* middle button */
75 #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON3DOWN /* right button */
76 #endif /* defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) */
78 #define SC_DRIVER_NAME "vt"
80 #define DPRINTF(_l, ...) if (vt_debug > (_l)) printf( __VA_ARGS__ )
81 #define VT_CONSOLECTL_DEBUG
82 #define VT_SYSMOUSE_DEBUG
84 #define DPRINTF(_l, ...) do {} while (0)
86 #define ISSIGVALID(sig) ((sig) > 0 && (sig) < NSIG)
88 #define VT_SYSCTL_INT(_name, _default, _descr) \
89 int vt_##_name = (_default); \
90 SYSCTL_INT(_kern_vt, OID_AUTO, _name, CTLFLAG_RWTUN, &vt_##_name, 0, _descr)
94 void vt_allocate(const struct vt_driver *, void *);
95 void vt_deallocate(const struct vt_driver *, void *);
97 typedef unsigned int vt_axis_t;
101 * (d) locked by vd_lock
102 * (b) locked by vb_lock
103 * (G) locked by Giant
104 * (u) unlocked, locked by higher levels
105 * (c) const until freeing
106 * (?) yet to be determined
110 * Per-device datastructure.
113 #ifndef SC_NO_CUTPASTE
114 struct vt_mouse_cursor;
118 term_char_t *vpb_buf; /* Copy-paste buffer. */
119 unsigned int vpb_bufsz; /* Buffer size. */
120 unsigned int vpb_len; /* Length of a last selection. */
124 struct vt_window *vd_windows[VT_MAXWINDOWS]; /* (c) Windows. */
125 struct vt_window *vd_curwindow; /* (d) Current window. */
126 struct vt_window *vd_savedwindow;/* (?) Saved for suspend. */
127 struct vt_pastebuf vd_pastebuf; /* (?) Copy/paste buf. */
128 const struct vt_driver *vd_driver; /* (c) Graphics driver. */
129 void *vd_softc; /* (u) Driver data. */
130 const struct vt_driver *vd_prev_driver;/* (?) Previous driver. */
131 void *vd_prev_softc; /* (?) Previous driver data. */
132 device_t vd_video_dev; /* (?) Video adapter. */
133 #ifndef SC_NO_CUTPASTE
134 struct vt_mouse_cursor *vd_mcursor; /* (?) Cursor bitmap. */
135 term_color_t vd_mcursor_fg; /* (?) Cursor fg color. */
136 term_color_t vd_mcursor_bg; /* (?) Cursor bg color. */
137 vt_axis_t vd_mx_drawn; /* (?) Mouse X and Y */
138 vt_axis_t vd_my_drawn; /* as of last redraw. */
139 int vd_mshown; /* (?) Mouse shown during */
140 #endif /* last redrawn. */
141 uint16_t vd_mx; /* (?) Current mouse X. */
142 uint16_t vd_my; /* (?) current mouse Y. */
143 uint32_t vd_mstate; /* (?) Mouse state. */
144 vt_axis_t vd_width; /* (?) Screen width. */
145 vt_axis_t vd_height; /* (?) Screen height. */
146 size_t vd_transpose; /* (?) Screen offset in FB */
147 struct mtx vd_lock; /* Per-device lock. */
148 struct cv vd_winswitch; /* (d) Window switch notify. */
149 struct callout vd_timer; /* (d) Display timer. */
150 volatile unsigned int vd_timer_armed;/* (?) Display timer started.*/
151 int vd_flags; /* (d) Device flags. */
152 #define VDF_TEXTMODE 0x01 /* Do text mode rendering. */
153 #define VDF_SPLASH 0x02 /* Splash screen active. */
154 #define VDF_ASYNC 0x04 /* vt_timer() running. */
155 #define VDF_INVALID 0x08 /* Entire screen should be re-rendered. */
156 #define VDF_DEAD 0x10 /* Early probing found nothing. */
157 #define VDF_INITIALIZED 0x20 /* vtterm_cnprobe already done. */
158 #define VDF_MOUSECURSOR 0x40 /* Mouse cursor visible. */
159 #define VDF_QUIET_BELL 0x80 /* Disable bell. */
160 #define VDF_SUSPENDED 0x100 /* Device has been suspended. */
161 #define VDF_DOWNGRADE 0x8000 /* The driver is being downgraded. */
162 struct keyboard *vd_keyboard; /* (G) Keyboard. */
163 unsigned int vd_kbstate; /* (?) Device unit. */
164 unsigned int vd_unit; /* (c) Device unit. */
165 int vd_altbrk; /* (?) Alt break seq. state */
166 term_char_t *vd_drawn; /* (?) Most recent char drawn. */
167 term_color_t *vd_drawnfg; /* (?) Most recent fg color drawn. */
168 term_color_t *vd_drawnbg; /* (?) Most recent bg color drawn. */
171 #define VD_PASTEBUF(vd) ((vd)->vd_pastebuf.vpb_buf)
172 #define VD_PASTEBUFSZ(vd) ((vd)->vd_pastebuf.vpb_bufsz)
173 #define VD_PASTEBUFLEN(vd) ((vd)->vd_pastebuf.vpb_len)
175 #define VT_LOCK(vd) mtx_lock(&(vd)->vd_lock)
176 #define VT_UNLOCK(vd) mtx_unlock(&(vd)->vd_lock)
177 #define VT_LOCK_ASSERT(vd, what) mtx_assert(&(vd)->vd_lock, what)
179 void vt_resume(struct vt_device *vd);
180 void vt_resume_flush_timer(struct vt_window *vw, int ms);
181 void vt_suspend(struct vt_device *vd);
184 * Per-window terminal screen buffer.
186 * Because redrawing is performed asynchronously, the buffer keeps track
187 * of a rectangle that needs to be redrawn (vb_dirtyrect). Because this
188 * approach seemed to cause suboptimal performance (when the top left
189 * and the bottom right of the screen are modified), it also uses a set
190 * of bitmasks to keep track of the rows and columns (mod 64) that have
195 struct mtx vb_lock; /* Buffer lock. */
196 struct terminal *vb_terminal;
197 term_pos_t vb_scr_size; /* (b) Screen dimensions. */
198 int vb_flags; /* (b) Flags. */
199 #define VBF_CURSOR 0x1 /* Cursor visible. */
200 #define VBF_STATIC 0x2 /* Buffer is statically allocated. */
201 #define VBF_MTX_INIT 0x4 /* Mutex initialized. */
202 #define VBF_SCROLL 0x8 /* scroll locked mode. */
203 #define VBF_HISTORY_FULL 0x10 /* All rows filled. */
204 unsigned int vb_history_size;
205 unsigned int vb_roffset; /* (b) History rows offset. */
206 unsigned int vb_curroffset; /* (b) Saved rows offset. */
207 term_pos_t vb_cursor; /* (u) Cursor position. */
208 term_pos_t vb_mark_start; /* (b) Copy region start. */
209 term_pos_t vb_mark_end; /* (b) Copy region end. */
210 int vb_mark_last; /* Last mouse event. */
211 term_rect_t vb_dirtyrect; /* (b) Dirty rectangle. */
212 term_char_t *vb_buffer; /* (u) Data buffer. */
213 term_char_t **vb_rows; /* (u) Array of rows */
216 #ifdef SC_HISTORY_SIZE
217 #define VBF_DEFAULT_HISTORY_SIZE SC_HISTORY_SIZE
219 #define VBF_DEFAULT_HISTORY_SIZE 500
222 void vtbuf_lock(struct vt_buf *);
223 void vtbuf_unlock(struct vt_buf *);
224 void vtbuf_copy(struct vt_buf *, const term_rect_t *, const term_pos_t *);
225 void vtbuf_fill(struct vt_buf *, const term_rect_t *, term_char_t);
226 void vtbuf_init_early(struct vt_buf *);
227 void vtbuf_init(struct vt_buf *, const term_pos_t *);
228 void vtbuf_grow(struct vt_buf *, const term_pos_t *, unsigned int);
229 void vtbuf_putchar(struct vt_buf *, const term_pos_t *, term_char_t);
230 void vtbuf_cursor_position(struct vt_buf *, const term_pos_t *);
231 void vtbuf_scroll_mode(struct vt_buf *vb, int yes);
232 void vtbuf_dirty(struct vt_buf *vb, const term_rect_t *area);
233 void vtbuf_undirty(struct vt_buf *, term_rect_t *);
234 void vtbuf_sethistory_size(struct vt_buf *, unsigned int);
235 void vtbuf_clearhistory(struct vt_buf *);
236 int vtbuf_iscursor(const struct vt_buf *vb, int row, int col);
237 void vtbuf_cursor_visibility(struct vt_buf *, int);
238 #ifndef SC_NO_CUTPASTE
239 int vtbuf_set_mark(struct vt_buf *vb, int type, int col, int row);
240 int vtbuf_get_marked_len(struct vt_buf *vb);
241 void vtbuf_extract_marked(struct vt_buf *vb, term_char_t *buf, int sz);
244 #define VTB_MARK_NONE 0
245 #define VTB_MARK_END 1
246 #define VTB_MARK_START 2
247 #define VTB_MARK_WORD 3
248 #define VTB_MARK_ROW 4
249 #define VTB_MARK_EXTEND 5
250 #define VTB_MARK_MOVE 6
252 #define VTBUF_SLCK_ENABLE(vb) vtbuf_scroll_mode((vb), 1)
253 #define VTBUF_SLCK_DISABLE(vb) vtbuf_scroll_mode((vb), 0)
255 #define VTBUF_MAX_HEIGHT(vb) \
256 ((vb)->vb_history_size)
257 #define VTBUF_GET_ROW(vb, r) \
258 ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)])
259 #define VTBUF_GET_FIELD(vb, r, c) \
260 ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)])
261 #define VTBUF_FIELD(vb, r, c) \
262 ((vb)->vb_rows[((vb)->vb_curroffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)])
263 #define VTBUF_ISCURSOR(vb, r, c) \
264 vtbuf_iscursor((vb), (r), (c))
265 #define VTBUF_DIRTYROW(mask, row) \
266 ((mask)->vbm_row & ((uint64_t)1 << ((row) % 64)))
267 #define VTBUF_DIRTYCOL(mask, col) \
268 ((mask)->vbm_col & ((uint64_t)1 << ((col) % 64)))
269 #define VTBUF_SPACE_CHAR(attr) (' ' | (attr))
274 int vthistory_seek(struct vt_buf *, int offset, int whence);
275 void vthistory_addlines(struct vt_buf *vb, int offset);
276 void vthistory_getpos(const struct vt_buf *, unsigned int *offset);
279 * Per-window datastructure.
283 struct vt_device *vw_device; /* (c) Device. */
284 struct terminal *vw_terminal; /* (c) Terminal. */
285 struct vt_buf vw_buf; /* (u) Screen buffer. */
286 struct vt_font *vw_font; /* (d) Graphical font. */
287 term_rect_t vw_draw_area; /* (?) Drawable area. */
288 unsigned int vw_number; /* (c) Window number. */
289 int vw_kbdmode; /* (?) Keyboard mode. */
290 int vw_prev_kbdmode;/* (?) Previous mode. */
291 int vw_kbdstate; /* (?) Keyboard state. */
292 int vw_grabbed; /* (?) Grab count. */
293 char *vw_kbdsq; /* Escape sequence queue*/
294 unsigned int vw_flags; /* (d) Per-window flags. */
295 int vw_mouse_level;/* Mouse op mode. */
296 #define VWF_BUSY 0x1 /* Busy reconfiguring device. */
297 #define VWF_OPENED 0x2 /* TTY in use. */
298 #define VWF_SCROLL 0x4 /* Keys influence scrollback. */
299 #define VWF_CONSOLE 0x8 /* Kernel message console window. */
300 #define VWF_VTYLOCK 0x10 /* Prevent window switch. */
301 #define VWF_MOUSE_HIDE 0x20 /* Disable mouse events processing. */
302 #define VWF_READY 0x40 /* Window fully initialized. */
303 #define VWF_GRAPHICS 0x80 /* Window in graphics mode (KDSETMODE). */
304 #define VWF_SWWAIT_REL 0x10000 /* Program wait for VT acquire is done. */
305 #define VWF_SWWAIT_ACQ 0x20000 /* Program wait for VT release is done. */
306 pid_t vw_pid; /* Terminal holding process */
307 struct proc *vw_proc;
308 struct vt_mode vw_smode; /* switch mode */
309 struct callout vw_proc_dead_timer;
310 struct vt_window *vw_switch_to;
313 #define VT_AUTO 0 /* switching is automatic */
314 #define VT_PROCESS 1 /* switching controlled by prog */
315 #define VT_KERNEL 255 /* switching controlled in kernel */
317 #define IS_VT_PROC_MODE(vw) ((vw)->vw_smode.mode == VT_PROCESS)
320 * Per-device driver routines.
323 typedef int vd_init_t(struct vt_device *vd);
324 typedef int vd_probe_t(struct vt_device *vd);
325 typedef void vd_fini_t(struct vt_device *vd, void *softc);
326 typedef void vd_postswitch_t(struct vt_device *vd);
327 typedef void vd_blank_t(struct vt_device *vd, term_color_t color);
328 typedef void vd_bitblt_text_t(struct vt_device *vd, const struct vt_window *vw,
329 const term_rect_t *area);
330 typedef void vd_invalidate_text_t(struct vt_device *vd,
331 const term_rect_t *area);
332 typedef void vd_bitblt_bmp_t(struct vt_device *vd, const struct vt_window *vw,
333 const uint8_t *pattern, const uint8_t *mask,
334 unsigned int width, unsigned int height,
335 unsigned int x, unsigned int y, term_color_t fg, term_color_t bg);
336 typedef int vd_fb_ioctl_t(struct vt_device *, u_long, caddr_t, struct thread *);
337 typedef int vd_fb_mmap_t(struct vt_device *, vm_ooffset_t, vm_paddr_t *, int,
339 typedef void vd_drawrect_t(struct vt_device *, int, int, int, int, int,
341 typedef void vd_setpixel_t(struct vt_device *, int, int, term_color_t);
342 typedef void vd_suspend_t(struct vt_device *);
343 typedef void vd_resume_t(struct vt_device *);
347 /* Console attachment. */
348 vd_probe_t *vd_probe;
353 vd_blank_t *vd_blank;
354 vd_drawrect_t *vd_drawrect;
355 vd_setpixel_t *vd_setpixel;
356 vd_bitblt_text_t *vd_bitblt_text;
357 vd_invalidate_text_t *vd_invalidate_text;
358 vd_bitblt_bmp_t *vd_bitblt_bmp;
360 /* Framebuffer ioctls, if present. */
361 vd_fb_ioctl_t *vd_fb_ioctl;
363 /* Framebuffer mmap, if present. */
364 vd_fb_mmap_t *vd_fb_mmap;
366 /* Update display setting on vt switch. */
367 vd_postswitch_t *vd_postswitch;
369 /* Suspend/resume handlers. */
370 vd_suspend_t *vd_suspend;
371 vd_resume_t *vd_resume;
373 /* Priority to know which one can override */
375 #define VD_PRIORITY_DUMB 10
376 #define VD_PRIORITY_GENERIC 100
377 #define VD_PRIORITY_SPECIFIC 1000
381 * Console device madness.
383 * Utility macro to make early vt(4) instances work.
386 extern struct vt_device vt_consdev;
387 extern struct terminal vt_consterm;
388 extern const struct terminal_class vt_termclass;
389 void vt_upgrade(struct vt_device *vd);
391 #define PIXEL_WIDTH(w) ((w) / 8)
392 #define PIXEL_HEIGHT(h) ((h) / 16)
394 #ifndef VT_FB_MAX_WIDTH
395 #define VT_FB_MAX_WIDTH 4096
397 #ifndef VT_FB_MAX_HEIGHT
398 #define VT_FB_MAX_HEIGHT 2400
401 /* name argument is not used yet. */
402 #define VT_DRIVER_DECLARE(name, drv) DATA_SET(vt_drv_set, drv)
404 #ifndef SC_NO_CUTPASTE
405 struct vt_mouse_cursor {
406 uint8_t map[64 * 64 / 8];
407 uint8_t mask[64 * 64 / 8];
413 const uint8_t *vtfont_lookup(const struct vt_font *vf, term_char_t c);
414 struct vt_font *vtfont_ref(struct vt_font *vf);
415 void vtfont_unref(struct vt_font *vf);
416 int vtfont_load(vfnt_t *f, struct vt_font **ret);
419 void sysmouse_process_event(mouse_info_t *mi);
420 #ifndef SC_NO_CUTPASTE
421 void vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel);
422 void vt_mouse_state(int show);
424 #define VT_MOUSE_SHOW 1
425 #define VT_MOUSE_HIDE 0
428 void vt_compute_drawable_area(struct vt_window *);
429 void vt_determine_colors(term_char_t c, int cursor,
430 term_color_t *fg, term_color_t *bg);
431 int vt_is_cursor_in_area(const struct vt_device *vd,
432 const term_rect_t *area);
433 void vt_termsize(struct vt_device *, struct vt_font *, term_pos_t *);
434 void vt_winsize(struct vt_device *, struct vt_font *, struct winsize *);
437 #define VT_LOGOS_DRAW_BEASTIE 0
438 #define VT_LOGOS_DRAW_ALT_BEASTIE 1
439 #define VT_LOGOS_DRAW_ORB 2
441 extern int vt_draw_logo_cpus;
442 extern int vt_splash_cpu;
443 extern int vt_splash_ncpu;
444 extern int vt_splash_cpu_style;
445 extern int vt_splash_cpu_duration;
447 extern const unsigned int vt_logo_sprite_height;
448 extern const unsigned int vt_logo_sprite_width;
450 void vtterm_draw_cpu_logos(struct vt_device *);
452 #endif /* !_DEV_VT_VT_H_ */