2 * Copyright (c) 2009, 2013 The FreeBSD Foundation
5 * This software was developed by Ed Schouten under sponsorship from the
8 * Portions of this software were developed by Oleksandr Rybalko
9 * under sponsorship from the FreeBSD Foundation.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #include <sys/param.h>
39 #include <sys/_lock.h>
40 #include <sys/_mutex.h>
41 #include <sys/callout.h>
42 #include <sys/condvar.h>
44 #include <sys/consio.h>
46 #include <sys/mouse.h>
47 #include <sys/terminal.h>
48 #include <sys/sysctl.h>
50 #include "opt_syscons.h"
51 #include "opt_splash.h"
55 #define VT_MAXWINDOWS MAXCONS
57 #define VT_MAXWINDOWS 12
61 #ifndef VT_ALT_TO_ESC_HACK
62 #define VT_ALT_TO_ESC_HACK 1
65 #define VT_CONSWINDOW 0
67 #if defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE)
68 #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON3DOWN /* right button */
69 #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON2DOWN /* not really used */
71 #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON2DOWN /* middle button */
72 #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON3DOWN /* right button */
73 #endif /* defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) */
75 #define SC_DRIVER_NAME "vt"
77 #define DPRINTF(_l, ...) if (vt_debug > (_l)) printf( __VA_ARGS__ )
78 #define VT_CONSOLECTL_DEBUG
79 #define VT_SYSMOUSE_DEBUG
81 #define DPRINTF(_l, ...) do {} while (0)
83 #define ISSIGVALID(sig) ((sig) > 0 && (sig) < NSIG)
85 #define VT_SYSCTL_INT(_name, _default, _descr) \
86 static int vt_##_name = _default; \
87 SYSCTL_INT(_kern_vt, OID_AUTO, _name, CTLFLAG_RW, &vt_##_name, _default,\
89 TUNABLE_INT("kern.vt." #_name, &vt_##_name);
93 void vt_allocate(struct vt_driver *, void *);
95 void vt_suspend(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 #ifndef SC_NO_CUTPASTE
131 struct vt_mouse_cursor *vd_mcursor; /* (?) Cursor bitmap. */
132 term_color_t vd_mcursor_fg; /* (?) Cursor fg color. */
133 term_color_t vd_mcursor_bg; /* (?) Cursor bg color. */
134 vt_axis_t vd_mx_drawn; /* (?) Mouse X and Y */
135 vt_axis_t vd_my_drawn; /* as of last redraw. */
136 int vd_mshown; /* (?) Mouse shown during */
137 #endif /* last redrawn. */
138 uint16_t vd_mx; /* (?) Current mouse X. */
139 uint16_t vd_my; /* (?) current mouse Y. */
140 uint32_t vd_mstate; /* (?) Mouse state. */
141 vt_axis_t vd_width; /* (?) Screen width. */
142 vt_axis_t vd_height; /* (?) Screen height. */
143 struct mtx vd_lock; /* Per-device lock. */
144 struct cv vd_winswitch; /* (d) Window switch notify. */
145 struct callout vd_timer; /* (d) Display timer. */
146 volatile unsigned int vd_timer_armed;/* (?) Display timer started.*/
147 int vd_flags; /* (d) Device flags. */
148 #define VDF_TEXTMODE 0x01 /* Do text mode rendering. */
149 #define VDF_SPLASH 0x02 /* Splash screen active. */
150 #define VDF_ASYNC 0x04 /* vt_timer() running. */
151 #define VDF_INVALID 0x08 /* Entire screen should be re-rendered. */
152 #define VDF_DEAD 0x10 /* Early probing found nothing. */
153 #define VDF_INITIALIZED 0x20 /* vtterm_cnprobe already done. */
154 #define VDF_MOUSECURSOR 0x40 /* Mouse cursor visible. */
155 #define VDF_QUIET_BELL 0x80 /* Disable bell. */
156 int vd_keyboard; /* (G) Keyboard index. */
157 unsigned int vd_kbstate; /* (?) Device unit. */
158 unsigned int vd_unit; /* (c) Device unit. */
161 #define VD_PASTEBUF(vd) ((vd)->vd_pastebuf.vpb_buf)
162 #define VD_PASTEBUFSZ(vd) ((vd)->vd_pastebuf.vpb_bufsz)
163 #define VD_PASTEBUFLEN(vd) ((vd)->vd_pastebuf.vpb_len)
166 * Per-window terminal screen buffer.
168 * Because redrawing is performed asynchronously, the buffer keeps track
169 * of a rectangle that needs to be redrawn (vb_dirtyrect). Because this
170 * approach seemed to cause suboptimal performance (when the top left
171 * and the bottom right of the screen are modified), it also uses a set
172 * of bitmasks to keep track of the rows and columns (mod 64) that have
177 struct mtx vb_lock; /* Buffer lock. */
178 term_pos_t vb_scr_size; /* (b) Screen dimensions. */
179 int vb_flags; /* (b) Flags. */
180 #define VBF_CURSOR 0x1 /* Cursor visible. */
181 #define VBF_STATIC 0x2 /* Buffer is statically allocated. */
182 #define VBF_MTX_INIT 0x4 /* Mutex initialized. */
183 #define VBF_SCROLL 0x8 /* scroll locked mode. */
184 #define VBF_HISTORY_FULL 0x10 /* All rows filled. */
185 unsigned int vb_history_size;
186 #define VBF_DEFAULT_HISTORY_SIZE 500
187 int vb_roffset; /* (b) History rows offset. */
188 int vb_curroffset; /* (b) Saved rows offset. */
189 term_pos_t vb_cursor; /* (u) Cursor position. */
190 term_pos_t vb_mark_start; /* (b) Copy region start. */
191 term_pos_t vb_mark_end; /* (b) Copy region end. */
192 int vb_mark_last; /* Last mouse event. */
193 term_rect_t vb_dirtyrect; /* (b) Dirty rectangle. */
194 term_char_t *vb_buffer; /* (u) Data buffer. */
195 term_char_t **vb_rows; /* (u) Array of rows */
198 void vtbuf_copy(struct vt_buf *, const term_rect_t *, const term_pos_t *);
199 void vtbuf_fill_locked(struct vt_buf *, const term_rect_t *, term_char_t);
200 void vtbuf_init_early(struct vt_buf *);
201 void vtbuf_init(struct vt_buf *, const term_pos_t *);
202 void vtbuf_grow(struct vt_buf *, const term_pos_t *, unsigned int);
203 void vtbuf_putchar(struct vt_buf *, const term_pos_t *, term_char_t);
204 void vtbuf_cursor_position(struct vt_buf *, const term_pos_t *);
205 void vtbuf_scroll_mode(struct vt_buf *vb, int yes);
206 void vtbuf_dirty(struct vt_buf *vb, const term_rect_t *area);
207 void vtbuf_undirty(struct vt_buf *, term_rect_t *);
208 void vtbuf_sethistory_size(struct vt_buf *, int);
209 int vtbuf_iscursor(const struct vt_buf *vb, int row, int col);
210 void vtbuf_cursor_visibility(struct vt_buf *, int);
211 #ifndef SC_NO_CUTPASTE
212 int vtbuf_set_mark(struct vt_buf *vb, int type, int col, int row);
213 int vtbuf_get_marked_len(struct vt_buf *vb);
214 void vtbuf_extract_marked(struct vt_buf *vb, term_char_t *buf, int sz);
217 #define VTB_MARK_NONE 0
218 #define VTB_MARK_END 1
219 #define VTB_MARK_START 2
220 #define VTB_MARK_WORD 3
221 #define VTB_MARK_ROW 4
222 #define VTB_MARK_EXTEND 5
223 #define VTB_MARK_MOVE 6
225 #define VTBUF_SLCK_ENABLE(vb) vtbuf_scroll_mode((vb), 1)
226 #define VTBUF_SLCK_DISABLE(vb) vtbuf_scroll_mode((vb), 0)
228 #define VTBUF_MAX_HEIGHT(vb) \
229 ((vb)->vb_history_size)
230 #define VTBUF_GET_ROW(vb, r) \
231 ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)])
232 #define VTBUF_GET_FIELD(vb, r, c) \
233 ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)])
234 #define VTBUF_FIELD(vb, r, c) \
235 ((vb)->vb_rows[((vb)->vb_curroffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)])
236 #define VTBUF_ISCURSOR(vb, r, c) \
237 vtbuf_iscursor((vb), (r), (c))
238 #define VTBUF_DIRTYROW(mask, row) \
239 ((mask)->vbm_row & ((uint64_t)1 << ((row) % 64)))
240 #define VTBUF_DIRTYCOL(mask, col) \
241 ((mask)->vbm_col & ((uint64_t)1 << ((col) % 64)))
242 #define VTBUF_SPACE_CHAR(attr) (' ' | (attr))
247 int vthistory_seek(struct vt_buf *, int offset, int whence);
248 void vthistory_addlines(struct vt_buf *vb, int offset);
249 void vthistory_getpos(const struct vt_buf *, unsigned int *offset);
252 * Per-window datastructure.
256 struct vt_device *vw_device; /* (c) Device. */
257 struct terminal *vw_terminal; /* (c) Terminal. */
258 struct vt_buf vw_buf; /* (u) Screen buffer. */
259 struct vt_font *vw_font; /* (d) Graphical font. */
260 term_rect_t vw_draw_area; /* (?) Drawable area. */
261 unsigned int vw_number; /* (c) Window number. */
262 int vw_kbdmode; /* (?) Keyboard mode. */
263 int vw_prev_kbdmode;/* (?) Previous mode. */
264 int vw_kbdstate; /* (?) Keyboard state. */
265 int vw_grabbed; /* (?) Grab count. */
266 char *vw_kbdsq; /* Escape sequence queue*/
267 unsigned int vw_flags; /* (d) Per-window flags. */
268 int vw_mouse_level;/* Mouse op mode. */
269 #define VWF_BUSY 0x1 /* Busy reconfiguring device. */
270 #define VWF_OPENED 0x2 /* TTY in use. */
271 #define VWF_SCROLL 0x4 /* Keys influence scrollback. */
272 #define VWF_CONSOLE 0x8 /* Kernel message console window. */
273 #define VWF_VTYLOCK 0x10 /* Prevent window switch. */
274 #define VWF_MOUSE_HIDE 0x20 /* Disable mouse events processing. */
275 #define VWF_READY 0x40 /* Window fully initialized. */
276 #define VWF_GRAPHICS 0x80 /* Window in graphics mode (KDSETMODE). */
277 #define VWF_SWWAIT_REL 0x10000 /* Program wait for VT acquire is done. */
278 #define VWF_SWWAIT_ACQ 0x20000 /* Program wait for VT release is done. */
279 pid_t vw_pid; /* Terminal holding process */
280 struct proc *vw_proc;
281 struct vt_mode vw_smode; /* switch mode */
282 struct callout vw_proc_dead_timer;
283 struct vt_window *vw_switch_to;
286 #define VT_AUTO 0 /* switching is automatic */
287 #define VT_PROCESS 1 /* switching controlled by prog */
288 #define VT_KERNEL 255 /* switching controlled in kernel */
290 #define IS_VT_PROC_MODE(vw) ((vw)->vw_smode.mode == VT_PROCESS)
293 * Per-device driver routines.
296 typedef int vd_init_t(struct vt_device *vd);
297 typedef int vd_probe_t(struct vt_device *vd);
298 typedef void vd_postswitch_t(struct vt_device *vd);
299 typedef void vd_blank_t(struct vt_device *vd, term_color_t color);
300 typedef void vd_bitblt_text_t(struct vt_device *vd, const struct vt_window *vw,
301 const term_rect_t *area);
302 typedef void vd_bitblt_bmp_t(struct vt_device *vd, const struct vt_window *vw,
303 const uint8_t *pattern, const uint8_t *mask,
304 unsigned int width, unsigned int height,
305 unsigned int x, unsigned int y, term_color_t fg, term_color_t bg);
306 typedef int vd_fb_ioctl_t(struct vt_device *, u_long, caddr_t, struct thread *);
307 typedef int vd_fb_mmap_t(struct vt_device *, vm_ooffset_t, vm_paddr_t *, int,
309 typedef void vd_drawrect_t(struct vt_device *, int, int, int, int, int,
311 typedef void vd_setpixel_t(struct vt_device *, int, int, term_color_t);
315 /* Console attachment. */
316 vd_probe_t *vd_probe;
320 vd_blank_t *vd_blank;
321 vd_drawrect_t *vd_drawrect;
322 vd_setpixel_t *vd_setpixel;
323 vd_bitblt_text_t *vd_bitblt_text;
324 vd_bitblt_bmp_t *vd_bitblt_bmp;
326 /* Framebuffer ioctls, if present. */
327 vd_fb_ioctl_t *vd_fb_ioctl;
329 /* Framebuffer mmap, if present. */
330 vd_fb_mmap_t *vd_fb_mmap;
332 /* Update display setting on vt switch. */
333 vd_postswitch_t *vd_postswitch;
335 /* Priority to know which one can override */
337 #define VD_PRIORITY_DUMB 10
338 #define VD_PRIORITY_GENERIC 100
339 #define VD_PRIORITY_SPECIFIC 1000
343 * Console device madness.
345 * Utility macro to make early vt(4) instances work.
348 extern const struct terminal_class vt_termclass;
349 void vt_upgrade(struct vt_device *vd);
351 #define PIXEL_WIDTH(w) ((w) / 8)
352 #define PIXEL_HEIGHT(h) ((h) / 16)
354 #ifndef VT_FB_DEFAULT_WIDTH
355 #define VT_FB_DEFAULT_WIDTH 2048
357 #ifndef VT_FB_DEFAULT_HEIGHT
358 #define VT_FB_DEFAULT_HEIGHT 1200
361 /* name argument is not used yet. */
362 #define VT_DRIVER_DECLARE(name, drv) DATA_SET(vt_drv_set, drv)
367 * Remapping tables are used to map Unicode points to glyphs. They need
368 * to be sorted, because vtfont_lookup() performs a binary search. Each
369 * font has two remapping tables, for normal and bold. When a character
370 * is not present in bold, it uses a normal glyph. When no glyph is
371 * available, it uses glyph 0, which is normally equal to U+FFFD.
381 struct vt_font_map *vf_map[VFNT_MAPS];
383 unsigned int vf_height, vf_width;
384 unsigned int vf_map_count[VFNT_MAPS];
385 unsigned int vf_refcount;
388 #ifndef SC_NO_CUTPASTE
389 struct vt_mouse_cursor {
390 uint8_t map[64 * 64 / 8];
391 uint8_t mask[64 * 64 / 8];
397 const uint8_t *vtfont_lookup(const struct vt_font *vf, term_char_t c);
398 struct vt_font *vtfont_ref(struct vt_font *vf);
399 void vtfont_unref(struct vt_font *vf);
400 int vtfont_load(vfnt_t *f, struct vt_font **ret);
403 void sysmouse_process_event(mouse_info_t *mi);
404 #ifndef SC_NO_CUTPASTE
405 void vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel);
406 void vt_mouse_state(int show);
408 #define VT_MOUSE_SHOW 1
409 #define VT_MOUSE_HIDE 0
412 void vt_determine_colors(term_char_t c, int cursor,
413 term_color_t *fg, term_color_t *bg);
414 int vt_is_cursor_in_area(const struct vt_device *vd,
415 const term_rect_t *area);
417 #endif /* !_DEV_VT_VT_H_ */