1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009, 2013 The FreeBSD Foundation 5 * 6 * This software was developed by Ed Schouten under sponsorship from the 7 * FreeBSD Foundation. 8 * 9 * Portions of this software were developed by Oleksandr Rybalko 10 * under sponsorship from the FreeBSD Foundation. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 */ 35 36 #ifndef _DEV_VT_VT_H_ 37 #define _DEV_VT_VT_H_ 38 39 #include <sys/param.h> 40 #include <sys/_lock.h> 41 #include <sys/_mutex.h> 42 #include <sys/callout.h> 43 #include <sys/condvar.h> 44 #include <sys/conf.h> 45 #include <sys/consio.h> 46 #include <sys/kbio.h> 47 #include <sys/mouse.h> 48 #include <sys/terminal.h> 49 #include <sys/sysctl.h> 50 #include <sys/font.h> 51 52 #include "opt_syscons.h" 53 #include "opt_splash.h" 54 55 #ifndef VT_MAXWINDOWS 56 #ifdef MAXCONS 57 #define VT_MAXWINDOWS MAXCONS 58 #else 59 #define VT_MAXWINDOWS 12 60 #endif 61 #endif 62 63 #ifndef VT_ALT_TO_ESC_HACK 64 #define VT_ALT_TO_ESC_HACK 1 65 #endif 66 67 #define VT_CONSWINDOW 0 68 69 #if defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) 70 #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON3DOWN /* right button */ 71 #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON2DOWN /* not really used */ 72 #else 73 #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON2DOWN /* middle button */ 74 #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON3DOWN /* right button */ 75 #endif /* defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) */ 76 77 #define SC_DRIVER_NAME "vt" 78 #ifdef VT_DEBUG 79 #define DPRINTF(_l, ...) if (vt_debug > (_l)) printf( __VA_ARGS__ ) 80 #define VT_CONSOLECTL_DEBUG 81 #define VT_SYSMOUSE_DEBUG 82 #else 83 #define DPRINTF(_l, ...) do {} while (0) 84 #endif 85 #define ISSIGVALID(sig) ((sig) > 0 && (sig) < NSIG) 86 87 #define VT_SYSCTL_INT(_name, _default, _descr) \ 88 int vt_##_name = (_default); \ 89 SYSCTL_INT(_kern_vt, OID_AUTO, _name, CTLFLAG_RWTUN, &vt_##_name, 0, _descr) 90 91 struct vt_driver; 92 93 void vt_allocate(const struct vt_driver *, void *); 94 void vt_deallocate(const struct vt_driver *, void *); 95 96 typedef unsigned int vt_axis_t; 97 98 /* 99 * List of locks 100 * (d) locked by vd_lock 101 * (b) locked by vb_lock 102 * (G) locked by Giant 103 * (u) unlocked, locked by higher levels 104 * (c) const until freeing 105 * (?) yet to be determined 106 */ 107 108 /* 109 * Per-device datastructure. 110 */ 111 112 #ifndef SC_NO_CUTPASTE 113 struct vt_mouse_cursor; 114 #endif 115 116 struct vt_pastebuf { 117 term_char_t *vpb_buf; /* Copy-paste buffer. */ 118 unsigned int vpb_bufsz; /* Buffer size. */ 119 unsigned int vpb_len; /* Length of a last selection. */ 120 }; 121 122 struct vt_device { 123 struct vt_window *vd_windows[VT_MAXWINDOWS]; /* (c) Windows. */ 124 struct vt_window *vd_curwindow; /* (d) Current window. */ 125 struct vt_window *vd_savedwindow;/* (?) Saved for suspend. */ 126 struct vt_window *vd_grabwindow; /* (?) Saved before cngrab. */ 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. */ 169 }; 170 171 #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) 174 175 #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) 178 179 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); 182 183 /* 184 * Per-window terminal screen buffer. 185 * 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 191 * been modified. 192 */ 193 194 struct vt_buf { 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 */ 214 }; 215 216 #ifdef SC_HISTORY_SIZE 217 #define VBF_DEFAULT_HISTORY_SIZE SC_HISTORY_SIZE 218 #else 219 #define VBF_DEFAULT_HISTORY_SIZE 500 220 #endif 221 222 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); 242 #endif 243 244 #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 6 251 252 #define VTBUF_SLCK_ENABLE(vb) vtbuf_scroll_mode((vb), 1) 253 #define VTBUF_SLCK_DISABLE(vb) vtbuf_scroll_mode((vb), 0) 254 255 #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)) 270 271 #define VHS_SET 0 272 #define VHS_CUR 1 273 #define VHS_END 2 274 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); 277 278 /* 279 * Per-window datastructure. 280 */ 281 282 struct vt_window { 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; 311 }; 312 313 #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 */ 316 317 #define IS_VT_PROC_MODE(vw) ((vw)->vw_smode.mode == VT_PROCESS) 318 319 /* 320 * Per-device driver routines. 321 */ 322 323 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, 338 vm_memattr_t *); 339 typedef void vd_drawrect_t(struct vt_device *, int, int, int, int, int, 340 term_color_t); 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 *); 344 345 struct vt_driver { 346 char vd_name[16]; 347 /* Console attachment. */ 348 vd_probe_t *vd_probe; 349 vd_init_t *vd_init; 350 vd_fini_t *vd_fini; 351 352 /* Drawing. */ 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; 359 360 /* Framebuffer ioctls, if present. */ 361 vd_fb_ioctl_t *vd_fb_ioctl; 362 363 /* Framebuffer mmap, if present. */ 364 vd_fb_mmap_t *vd_fb_mmap; 365 366 /* Update display setting on vt switch. */ 367 vd_postswitch_t *vd_postswitch; 368 369 /* Suspend/resume handlers. */ 370 vd_suspend_t *vd_suspend; 371 vd_resume_t *vd_resume; 372 373 /* Priority to know which one can override */ 374 int vd_priority; 375 #define VD_PRIORITY_DUMB 10 376 #define VD_PRIORITY_GENERIC 100 377 #define VD_PRIORITY_SPECIFIC 1000 378 }; 379 380 /* 381 * Console device madness. 382 * 383 * Utility macro to make early vt(4) instances work. 384 */ 385 386 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); 390 391 #define PIXEL_WIDTH(w) ((w) / 8) 392 #define PIXEL_HEIGHT(h) ((h) / 16) 393 394 #ifndef VT_FB_MAX_WIDTH 395 #define VT_FB_MAX_WIDTH 4096 396 #endif 397 #ifndef VT_FB_MAX_HEIGHT 398 #define VT_FB_MAX_HEIGHT 2400 399 #endif 400 401 /* name argument is not used yet. */ 402 #define VT_DRIVER_DECLARE(name, drv) DATA_SET(vt_drv_set, drv) 403 404 #ifndef SC_NO_CUTPASTE 405 struct vt_mouse_cursor { 406 uint8_t map[64 * 64 / 8]; 407 uint8_t mask[64 * 64 / 8]; 408 uint8_t width; 409 uint8_t height; 410 }; 411 #endif 412 413 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); 417 418 /* Sysmouse. */ 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); 423 #endif 424 #define VT_MOUSE_SHOW 1 425 #define VT_MOUSE_HIDE 0 426 427 /* Utilities. */ 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 *); 435 436 /* Logos-on-boot. */ 437 #define VT_LOGOS_DRAW_BEASTIE 0 438 #define VT_LOGOS_DRAW_ALT_BEASTIE 1 439 #define VT_LOGOS_DRAW_ORB 2 440 441 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; 446 447 extern const unsigned int vt_logo_sprite_height; 448 extern const unsigned int vt_logo_sprite_width; 449 450 void vtterm_draw_cpu_logos(struct vt_device *); 451 452 #endif /* !_DEV_VT_VT_H_ */ 453