1 /*- 2 * Copyright (c) 2009, 2013 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Ed Schouten under sponsorship from the 6 * FreeBSD Foundation. 7 * 8 * Portions of this software were developed by Oleksandr Rybalko 9 * under sponsorship from the FreeBSD Foundation. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 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. 19 * 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 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 35 #ifndef _DEV_VT_VT_H_ 36 #define _DEV_VT_VT_H_ 37 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> 43 #include <sys/conf.h> 44 #include <sys/consio.h> 45 #include <sys/kbio.h> 46 #include <sys/mouse.h> 47 #include <sys/terminal.h> 48 #include <sys/sysctl.h> 49 50 #include "opt_syscons.h" 51 #include "opt_splash.h" 52 53 #ifndef VT_MAXWINDOWS 54 #ifdef MAXCONS 55 #define VT_MAXWINDOWS MAXCONS 56 #else 57 #define VT_MAXWINDOWS 12 58 #endif 59 #endif 60 61 #ifndef VT_ALT_TO_ESC_HACK 62 #define VT_ALT_TO_ESC_HACK 1 63 #endif 64 65 #define VT_CONSWINDOW 0 66 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 */ 70 #else 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) */ 74 75 #define SC_DRIVER_NAME "vt" 76 #ifdef VT_DEBUG 77 #define DPRINTF(_l, ...) if (vt_debug > (_l)) printf( __VA_ARGS__ ) 78 #define VT_CONSOLECTL_DEBUG 79 #define VT_SYSMOUSE_DEBUG 80 #else 81 #define DPRINTF(_l, ...) do {} while (0) 82 #endif 83 #define ISSIGVALID(sig) ((sig) > 0 && (sig) < NSIG) 84 85 #define VT_SYSCTL_INT(_name, _default, _descr) \ 86 static int vt_##_name = _default; \ 87 SYSCTL_INT(_kern_vt, OID_AUTO, _name, CTLFLAG_RWTUN, &vt_##_name, _default,\ 88 _descr); 89 90 struct vt_driver; 91 92 void vt_allocate(struct vt_driver *, void *); 93 void vt_resume(void); 94 void vt_suspend(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_pastebuf vd_pastebuf; /* (?) Copy/paste buf. */ 127 const struct vt_driver *vd_driver; /* (c) Graphics driver. */ 128 void *vd_softc; /* (u) Driver data. */ 129 #ifndef SC_NO_CUTPASTE 130 struct vt_mouse_cursor *vd_mcursor; /* (?) Cursor bitmap. */ 131 term_color_t vd_mcursor_fg; /* (?) Cursor fg color. */ 132 term_color_t vd_mcursor_bg; /* (?) Cursor bg color. */ 133 vt_axis_t vd_mx_drawn; /* (?) Mouse X and Y */ 134 vt_axis_t vd_my_drawn; /* as of last redraw. */ 135 int vd_mshown; /* (?) Mouse shown during */ 136 #endif /* last redrawn. */ 137 uint16_t vd_mx; /* (?) Current mouse X. */ 138 uint16_t vd_my; /* (?) current mouse Y. */ 139 uint32_t vd_mstate; /* (?) Mouse state. */ 140 vt_axis_t vd_width; /* (?) Screen width. */ 141 vt_axis_t vd_height; /* (?) Screen height. */ 142 struct mtx vd_lock; /* Per-device lock. */ 143 struct cv vd_winswitch; /* (d) Window switch notify. */ 144 struct callout vd_timer; /* (d) Display timer. */ 145 volatile unsigned int vd_timer_armed;/* (?) Display timer started.*/ 146 int vd_flags; /* (d) Device flags. */ 147 #define VDF_TEXTMODE 0x01 /* Do text mode rendering. */ 148 #define VDF_SPLASH 0x02 /* Splash screen active. */ 149 #define VDF_ASYNC 0x04 /* vt_timer() running. */ 150 #define VDF_INVALID 0x08 /* Entire screen should be re-rendered. */ 151 #define VDF_DEAD 0x10 /* Early probing found nothing. */ 152 #define VDF_INITIALIZED 0x20 /* vtterm_cnprobe already done. */ 153 #define VDF_MOUSECURSOR 0x40 /* Mouse cursor visible. */ 154 #define VDF_QUIET_BELL 0x80 /* Disable bell. */ 155 int vd_keyboard; /* (G) Keyboard index. */ 156 unsigned int vd_kbstate; /* (?) Device unit. */ 157 unsigned int vd_unit; /* (c) Device unit. */ 158 }; 159 160 #define VD_PASTEBUF(vd) ((vd)->vd_pastebuf.vpb_buf) 161 #define VD_PASTEBUFSZ(vd) ((vd)->vd_pastebuf.vpb_bufsz) 162 #define VD_PASTEBUFLEN(vd) ((vd)->vd_pastebuf.vpb_len) 163 164 /* 165 * Per-window terminal screen buffer. 166 * 167 * Because redrawing is performed asynchronously, the buffer keeps track 168 * of a rectangle that needs to be redrawn (vb_dirtyrect). Because this 169 * approach seemed to cause suboptimal performance (when the top left 170 * and the bottom right of the screen are modified), it also uses a set 171 * of bitmasks to keep track of the rows and columns (mod 64) that have 172 * been modified. 173 */ 174 175 struct vt_buf { 176 struct mtx vb_lock; /* Buffer lock. */ 177 term_pos_t vb_scr_size; /* (b) Screen dimensions. */ 178 int vb_flags; /* (b) Flags. */ 179 #define VBF_CURSOR 0x1 /* Cursor visible. */ 180 #define VBF_STATIC 0x2 /* Buffer is statically allocated. */ 181 #define VBF_MTX_INIT 0x4 /* Mutex initialized. */ 182 #define VBF_SCROLL 0x8 /* scroll locked mode. */ 183 #define VBF_HISTORY_FULL 0x10 /* All rows filled. */ 184 unsigned int vb_history_size; 185 int vb_roffset; /* (b) History rows offset. */ 186 int vb_curroffset; /* (b) Saved rows offset. */ 187 term_pos_t vb_cursor; /* (u) Cursor position. */ 188 term_pos_t vb_mark_start; /* (b) Copy region start. */ 189 term_pos_t vb_mark_end; /* (b) Copy region end. */ 190 int vb_mark_last; /* Last mouse event. */ 191 term_rect_t vb_dirtyrect; /* (b) Dirty rectangle. */ 192 term_char_t *vb_buffer; /* (u) Data buffer. */ 193 term_char_t **vb_rows; /* (u) Array of rows */ 194 }; 195 196 #ifdef SC_HISTORY_SIZE 197 #define VBF_DEFAULT_HISTORY_SIZE SC_HISTORY_SIZE 198 #else 199 #define VBF_DEFAULT_HISTORY_SIZE 500 200 #endif 201 202 void vtbuf_copy(struct vt_buf *, const term_rect_t *, const term_pos_t *); 203 void vtbuf_fill_locked(struct vt_buf *, const term_rect_t *, term_char_t); 204 void vtbuf_init_early(struct vt_buf *); 205 void vtbuf_init(struct vt_buf *, const term_pos_t *); 206 void vtbuf_grow(struct vt_buf *, const term_pos_t *, unsigned int); 207 void vtbuf_putchar(struct vt_buf *, const term_pos_t *, term_char_t); 208 void vtbuf_cursor_position(struct vt_buf *, const term_pos_t *); 209 void vtbuf_scroll_mode(struct vt_buf *vb, int yes); 210 void vtbuf_dirty(struct vt_buf *vb, const term_rect_t *area); 211 void vtbuf_undirty(struct vt_buf *, term_rect_t *); 212 void vtbuf_sethistory_size(struct vt_buf *, int); 213 int vtbuf_iscursor(const struct vt_buf *vb, int row, int col); 214 void vtbuf_cursor_visibility(struct vt_buf *, int); 215 #ifndef SC_NO_CUTPASTE 216 int vtbuf_set_mark(struct vt_buf *vb, int type, int col, int row); 217 int vtbuf_get_marked_len(struct vt_buf *vb); 218 void vtbuf_extract_marked(struct vt_buf *vb, term_char_t *buf, int sz); 219 #endif 220 221 #define VTB_MARK_NONE 0 222 #define VTB_MARK_END 1 223 #define VTB_MARK_START 2 224 #define VTB_MARK_WORD 3 225 #define VTB_MARK_ROW 4 226 #define VTB_MARK_EXTEND 5 227 #define VTB_MARK_MOVE 6 228 229 #define VTBUF_SLCK_ENABLE(vb) vtbuf_scroll_mode((vb), 1) 230 #define VTBUF_SLCK_DISABLE(vb) vtbuf_scroll_mode((vb), 0) 231 232 #define VTBUF_MAX_HEIGHT(vb) \ 233 ((vb)->vb_history_size) 234 #define VTBUF_GET_ROW(vb, r) \ 235 ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)]) 236 #define VTBUF_GET_FIELD(vb, r, c) \ 237 ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)]) 238 #define VTBUF_FIELD(vb, r, c) \ 239 ((vb)->vb_rows[((vb)->vb_curroffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)]) 240 #define VTBUF_ISCURSOR(vb, r, c) \ 241 vtbuf_iscursor((vb), (r), (c)) 242 #define VTBUF_DIRTYROW(mask, row) \ 243 ((mask)->vbm_row & ((uint64_t)1 << ((row) % 64))) 244 #define VTBUF_DIRTYCOL(mask, col) \ 245 ((mask)->vbm_col & ((uint64_t)1 << ((col) % 64))) 246 #define VTBUF_SPACE_CHAR(attr) (' ' | (attr)) 247 248 #define VHS_SET 0 249 #define VHS_CUR 1 250 #define VHS_END 2 251 int vthistory_seek(struct vt_buf *, int offset, int whence); 252 void vthistory_addlines(struct vt_buf *vb, int offset); 253 void vthistory_getpos(const struct vt_buf *, unsigned int *offset); 254 255 /* 256 * Per-window datastructure. 257 */ 258 259 struct vt_window { 260 struct vt_device *vw_device; /* (c) Device. */ 261 struct terminal *vw_terminal; /* (c) Terminal. */ 262 struct vt_buf vw_buf; /* (u) Screen buffer. */ 263 struct vt_font *vw_font; /* (d) Graphical font. */ 264 term_rect_t vw_draw_area; /* (?) Drawable area. */ 265 unsigned int vw_number; /* (c) Window number. */ 266 int vw_kbdmode; /* (?) Keyboard mode. */ 267 int vw_prev_kbdmode;/* (?) Previous mode. */ 268 int vw_kbdstate; /* (?) Keyboard state. */ 269 int vw_grabbed; /* (?) Grab count. */ 270 char *vw_kbdsq; /* Escape sequence queue*/ 271 unsigned int vw_flags; /* (d) Per-window flags. */ 272 int vw_mouse_level;/* Mouse op mode. */ 273 #define VWF_BUSY 0x1 /* Busy reconfiguring device. */ 274 #define VWF_OPENED 0x2 /* TTY in use. */ 275 #define VWF_SCROLL 0x4 /* Keys influence scrollback. */ 276 #define VWF_CONSOLE 0x8 /* Kernel message console window. */ 277 #define VWF_VTYLOCK 0x10 /* Prevent window switch. */ 278 #define VWF_MOUSE_HIDE 0x20 /* Disable mouse events processing. */ 279 #define VWF_READY 0x40 /* Window fully initialized. */ 280 #define VWF_GRAPHICS 0x80 /* Window in graphics mode (KDSETMODE). */ 281 #define VWF_SWWAIT_REL 0x10000 /* Program wait for VT acquire is done. */ 282 #define VWF_SWWAIT_ACQ 0x20000 /* Program wait for VT release is done. */ 283 pid_t vw_pid; /* Terminal holding process */ 284 struct proc *vw_proc; 285 struct vt_mode vw_smode; /* switch mode */ 286 struct callout vw_proc_dead_timer; 287 struct vt_window *vw_switch_to; 288 }; 289 290 #define VT_AUTO 0 /* switching is automatic */ 291 #define VT_PROCESS 1 /* switching controlled by prog */ 292 #define VT_KERNEL 255 /* switching controlled in kernel */ 293 294 #define IS_VT_PROC_MODE(vw) ((vw)->vw_smode.mode == VT_PROCESS) 295 296 /* 297 * Per-device driver routines. 298 */ 299 300 typedef int vd_init_t(struct vt_device *vd); 301 typedef int vd_probe_t(struct vt_device *vd); 302 typedef void vd_postswitch_t(struct vt_device *vd); 303 typedef void vd_blank_t(struct vt_device *vd, term_color_t color); 304 typedef void vd_bitblt_text_t(struct vt_device *vd, const struct vt_window *vw, 305 const term_rect_t *area); 306 typedef void vd_bitblt_bmp_t(struct vt_device *vd, const struct vt_window *vw, 307 const uint8_t *pattern, const uint8_t *mask, 308 unsigned int width, unsigned int height, 309 unsigned int x, unsigned int y, term_color_t fg, term_color_t bg); 310 typedef int vd_fb_ioctl_t(struct vt_device *, u_long, caddr_t, struct thread *); 311 typedef int vd_fb_mmap_t(struct vt_device *, vm_ooffset_t, vm_paddr_t *, int, 312 vm_memattr_t *); 313 typedef void vd_drawrect_t(struct vt_device *, int, int, int, int, int, 314 term_color_t); 315 typedef void vd_setpixel_t(struct vt_device *, int, int, term_color_t); 316 317 struct vt_driver { 318 char vd_name[16]; 319 /* Console attachment. */ 320 vd_probe_t *vd_probe; 321 vd_init_t *vd_init; 322 323 /* Drawing. */ 324 vd_blank_t *vd_blank; 325 vd_drawrect_t *vd_drawrect; 326 vd_setpixel_t *vd_setpixel; 327 vd_bitblt_text_t *vd_bitblt_text; 328 vd_bitblt_bmp_t *vd_bitblt_bmp; 329 330 /* Framebuffer ioctls, if present. */ 331 vd_fb_ioctl_t *vd_fb_ioctl; 332 333 /* Framebuffer mmap, if present. */ 334 vd_fb_mmap_t *vd_fb_mmap; 335 336 /* Update display setting on vt switch. */ 337 vd_postswitch_t *vd_postswitch; 338 339 /* Priority to know which one can override */ 340 int vd_priority; 341 #define VD_PRIORITY_DUMB 10 342 #define VD_PRIORITY_GENERIC 100 343 #define VD_PRIORITY_SPECIFIC 1000 344 }; 345 346 /* 347 * Console device madness. 348 * 349 * Utility macro to make early vt(4) instances work. 350 */ 351 352 extern const struct terminal_class vt_termclass; 353 void vt_upgrade(struct vt_device *vd); 354 355 #define PIXEL_WIDTH(w) ((w) / 8) 356 #define PIXEL_HEIGHT(h) ((h) / 16) 357 358 #ifndef VT_FB_DEFAULT_WIDTH 359 #define VT_FB_DEFAULT_WIDTH 2048 360 #endif 361 #ifndef VT_FB_DEFAULT_HEIGHT 362 #define VT_FB_DEFAULT_HEIGHT 1200 363 #endif 364 365 /* name argument is not used yet. */ 366 #define VT_DRIVER_DECLARE(name, drv) DATA_SET(vt_drv_set, drv) 367 368 /* 369 * Fonts. 370 * 371 * Remapping tables are used to map Unicode points to glyphs. They need 372 * to be sorted, because vtfont_lookup() performs a binary search. Each 373 * font has two remapping tables, for normal and bold. When a character 374 * is not present in bold, it uses a normal glyph. When no glyph is 375 * available, it uses glyph 0, which is normally equal to U+FFFD. 376 */ 377 378 struct vt_font_map { 379 uint32_t vfm_src; 380 uint16_t vfm_dst; 381 uint16_t vfm_len; 382 }; 383 384 struct vt_font { 385 struct vt_font_map *vf_map[VFNT_MAPS]; 386 uint8_t *vf_bytes; 387 unsigned int vf_height, vf_width; 388 unsigned int vf_map_count[VFNT_MAPS]; 389 unsigned int vf_refcount; 390 }; 391 392 #ifndef SC_NO_CUTPASTE 393 struct vt_mouse_cursor { 394 uint8_t map[64 * 64 / 8]; 395 uint8_t mask[64 * 64 / 8]; 396 uint8_t width; 397 uint8_t height; 398 }; 399 #endif 400 401 const uint8_t *vtfont_lookup(const struct vt_font *vf, term_char_t c); 402 struct vt_font *vtfont_ref(struct vt_font *vf); 403 void vtfont_unref(struct vt_font *vf); 404 int vtfont_load(vfnt_t *f, struct vt_font **ret); 405 406 /* Sysmouse. */ 407 void sysmouse_process_event(mouse_info_t *mi); 408 #ifndef SC_NO_CUTPASTE 409 void vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel); 410 void vt_mouse_state(int show); 411 #endif 412 #define VT_MOUSE_SHOW 1 413 #define VT_MOUSE_HIDE 0 414 415 /* Utilities. */ 416 void vt_determine_colors(term_char_t c, int cursor, 417 term_color_t *fg, term_color_t *bg); 418 int vt_is_cursor_in_area(const struct vt_device *vd, 419 const term_rect_t *area); 420 421 #endif /* !_DEV_VT_VT_H_ */ 422 423