xref: /freebsd-12.1/sys/dev/syscons/syscons.h (revision 90e655ea)
1 /*-
2  * Copyright (c) 1995-1998 S�ren Schmidt
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _DEV_SYSCONS_SYSCONS_H_
32 #define	_DEV_SYSCONS_SYSCONS_H_
33 
34 /* machine-dependent part of the header */
35 
36 #ifdef PC98
37 #include <pc98/pc98/sc_machdep.h>
38 #elif defined(__i386__)
39 /* nothing for the moment */
40 #elif defined(__alpha__)
41 /* nothing for the moment */
42 #endif
43 
44 /* default values for configuration options */
45 
46 #ifndef MAXCONS
47 #define MAXCONS		16
48 #endif
49 
50 #ifdef SC_NO_SYSMOUSE
51 #undef SC_NO_CUTPASTE
52 #define SC_NO_CUTPASTE	1
53 #endif
54 
55 #ifdef SC_NO_MODE_CHANGE
56 #undef SC_PIXEL_MODE
57 #endif
58 
59 /* Always load font data if the pixel (raster text) mode is to be used. */
60 #ifdef SC_PIXEL_MODE
61 #undef SC_NO_FONT_LOADING
62 #endif
63 
64 /*
65  * If font data is not available, the `arrow'-shaped mouse cursor cannot
66  * be drawn.  Use the alternative drawing method.
67  */
68 #ifdef SC_NO_FONT_LOADING
69 #undef SC_ALT_MOUSE_IMAGE
70 #define SC_ALT_MOUSE_IMAGE 1
71 #endif
72 
73 #ifndef SC_CURSOR_CHAR
74 #define SC_CURSOR_CHAR	(0x07)
75 #endif
76 
77 #ifndef SC_MOUSE_CHAR
78 #define SC_MOUSE_CHAR	(0xd0)
79 #endif
80 
81 #if SC_MOUSE_CHAR <= SC_CURSOR_CHAR && SC_CURSOR_CHAR < (SC_MOUSE_CHAR + 4)
82 #undef SC_CURSOR_CHAR
83 #define SC_CURSOR_CHAR	(SC_MOUSE_CHAR + 4)
84 #endif
85 
86 #ifndef SC_DEBUG_LEVEL
87 #define SC_DEBUG_LEVEL	0
88 #endif
89 
90 #define DPRINTF(l, p)	if (SC_DEBUG_LEVEL >= (l)) printf p
91 
92 #define SC_DRIVER_NAME	"sc"
93 #define SC_VTY(dev)	minor(dev)
94 #define SC_DEV(sc, vty)	((sc)->dev[(vty) - (sc)->first_vty])
95 #define SC_STAT(dev)	((scr_stat *)(dev)->si_drv1)
96 
97 /* printable chars */
98 #ifndef PRINTABLE
99 #define PRINTABLE(ch)	((ch) > 0x1b || ((ch) > 0x0d && (ch) < 0x1b) \
100 			 || (ch) < 0x07)
101 #endif
102 
103 /* macros for "intelligent" screen update */
104 #define mark_for_update(scp, x)	{\
105 			  	    if ((x) < scp->start) scp->start = (x);\
106 				    else if ((x) > scp->end) scp->end = (x);\
107 				}
108 #define mark_all(scp)		{\
109 				    scp->start = 0;\
110 				    scp->end = scp->xsize * scp->ysize - 1;\
111 				}
112 
113 /* vty status flags (scp->status) */
114 #define UNKNOWN_MODE	0x00010		/* unknown video mode */
115 #define SWITCH_WAIT_REL	0x00080		/* waiting for vty release */
116 #define SWITCH_WAIT_ACQ	0x00100		/* waiting for vty ack */
117 #define BUFFER_SAVED	0x00200		/* vty buffer is saved */
118 #define CURSOR_ENABLED 	0x00400		/* text cursor is enabled */
119 #define MOUSE_MOVED	0x01000		/* mouse cursor has moved */
120 #define MOUSE_CUTTING	0x02000		/* mouse cursor is cutting text */
121 #define MOUSE_VISIBLE	0x04000		/* mouse cursor is showing */
122 #define GRAPHICS_MODE	0x08000		/* vty is in a graphics mode */
123 #define PIXEL_MODE	0x10000		/* vty is in a raster text mode */
124 #define SAVER_RUNNING	0x20000		/* screen saver is running */
125 #define VR_CURSOR_BLINK	0x40000		/* blinking text cursor */
126 #define VR_CURSOR_ON	0x80000		/* text cursor is on */
127 #define MOUSE_HIDDEN	0x100000	/* mouse cursor is temporarily hidden */
128 
129 /* misc defines */
130 #define FALSE		0
131 #define TRUE		1
132 #define	COL		80
133 #define	ROW		25
134 #define PCBURST		128
135 
136 #ifndef BELL_DURATION
137 #define BELL_DURATION	((5 * hz + 99) / 100)
138 #define BELL_PITCH	800
139 #endif
140 
141 /* virtual terminal buffer */
142 typedef struct sc_vtb {
143 	int		vtb_flags;
144 #define VTB_VALID	(1 << 0)
145 #define VTB_ALLOCED	(1 << 1)
146 	int		vtb_type;
147 #define VTB_INVALID	0
148 #define VTB_MEMORY	1
149 #define VTB_FRAMEBUFFER	2
150 #define VTB_RINGBUFFER	3
151 	int		vtb_cols;
152 	int		vtb_rows;
153 	int		vtb_size;
154 	vm_offset_t	vtb_buffer;
155 	int		vtb_tail;	/* valid for VTB_RINGBUFFER only */
156 } sc_vtb_t;
157 
158 /* softc */
159 
160 struct keyboard;
161 struct video_adapter;
162 struct scr_stat;
163 struct tty;
164 
165 typedef struct sc_softc {
166 	int		unit;			/* unit # */
167 	int		config;			/* configuration flags */
168 #define SC_VESA800X600	(1 << 7)
169 #define SC_AUTODETECT_KBD (1 << 8)
170 #define SC_KERNEL_CONSOLE (1 << 9)
171 
172 	int		flags;			/* status flags */
173 #define SC_VISUAL_BELL	(1 << 0)
174 #define SC_QUIET_BELL	(1 << 1)
175 #define SC_BLINK_CURSOR	(1 << 2)
176 #define SC_CHAR_CURSOR	(1 << 3)
177 #define SC_MOUSE_ENABLED (1 << 4)
178 #define	SC_SCRN_IDLE	(1 << 5)
179 #define	SC_SCRN_BLANKED	(1 << 6)
180 #define	SC_SAVER_FAILED	(1 << 7)
181 
182 #define	SC_INIT_DONE	(1 << 16)
183 #define	SC_SPLASH_SCRN	(1 << 17)
184 
185 	int		keyboard;		/* -1 if unavailable */
186 	struct keyboard	*kbd;
187 
188 	int		adapter;
189 	struct video_adapter *adp;
190 	int		initial_mode;		/* initial video mode */
191 
192 	int		first_vty;
193 	int		vtys;
194 	dev_t		*dev;
195 	struct scr_stat	*cur_scp;
196 	struct scr_stat	*new_scp;
197 	struct scr_stat	*old_scp;
198 	int     	delayed_next_scr;
199 
200 	char        	font_loading_in_progress;
201 	char        	switch_in_progress;
202 	char        	videoio_in_progress;
203 	char        	write_in_progress;
204 	char        	blink_in_progress;
205 
206 	long		scrn_time_stamp;
207 
208 	char		cursor_base;
209 	char		cursor_height;
210 
211 	u_char      	scr_map[256];
212 	u_char      	scr_rmap[256];
213 
214 #ifdef _SC_MD_SOFTC_DECLARED_
215 	sc_md_softc_t	md;			/* machine dependent vars */
216 #endif
217 
218 #ifndef SC_NO_PALETTE_LOADING
219 	u_char        	palette[256*3];
220 #endif
221 
222 #ifndef SC_NO_FONT_LOADING
223 	int     	fonts_loaded;
224 #define FONT_8		2
225 #define FONT_14		4
226 #define FONT_16		8
227 	u_char		*font_8;
228 	u_char		*font_14;
229 	u_char		*font_16;
230 #endif
231 
232 	u_char		cursor_char;
233 	u_char		mouse_char;
234 
235 } sc_softc_t;
236 
237 /* virtual screen */
238 typedef struct scr_stat {
239 	int		index;			/* index of this vty */
240 	struct sc_softc *sc;			/* pointer to softc */
241 	struct sc_rndr_sw *rndr;		/* renderer */
242 	sc_vtb_t	scr;
243 	sc_vtb_t	vtb;
244 
245 	int 		xpos;			/* current X position */
246 	int 		ypos;			/* current Y position */
247 	int 		xsize;			/* X text size */
248 	int 		ysize;			/* Y text size */
249 	int 		xpixel;			/* X graphics size */
250 	int 		ypixel;			/* Y graphics size */
251 	int		xoff;			/* X offset in pixel mode */
252 	int		yoff;			/* Y offset in pixel mode */
253 
254 	u_char		*font;			/* current font */
255 	int		font_size;		/* fontsize in Y direction */
256 
257 	int		start;			/* modified area start */
258 	int		end;			/* modified area end */
259 
260 	struct sc_term_sw *tsw;
261 	void		*ts;
262 
263 	int	 	status;			/* status (bitfield) */
264 	int		kbd_mode;		/* keyboard I/O mode */
265 
266 	int		cursor_pos;		/* cursor buffer position */
267 	int		cursor_oldpos;		/* cursor old buffer position */
268 	u_short		cursor_saveunder_char;	/* saved char under cursor */
269 	u_short		cursor_saveunder_attr;	/* saved attr under cursor */
270 	char		cursor_base;		/* cursor base line # */
271 	char		cursor_height;		/* cursor height */
272 
273 	int		mouse_pos;		/* mouse buffer position */
274 	int		mouse_oldpos;		/* mouse old buffer position */
275 	short		mouse_xpos;		/* mouse x coordinate */
276 	short		mouse_ypos;		/* mouse y coordinate */
277 	short		mouse_oldxpos;		/* mouse previous x coordinate */
278 	short		mouse_oldypos;		/* mouse previous y coordinate */
279 	short		mouse_buttons;		/* mouse buttons */
280 	int		mouse_cut_start;	/* mouse cut start pos */
281 	int		mouse_cut_end;		/* mouse cut end pos */
282 	struct proc 	*mouse_proc;		/* proc* of controlling proc */
283 	pid_t 		mouse_pid;		/* pid of controlling proc */
284 	int		mouse_signal;		/* signal # to report with */
285 
286 	u_short		bell_duration;
287 	u_short		bell_pitch;
288 
289 	u_char		border;			/* border color */
290 	int	 	mode;			/* mode */
291 	pid_t 		pid;			/* pid of controlling proc */
292 	struct proc 	*proc;			/* proc* of controlling proc */
293 	struct vt_mode 	smode;			/* switch mode */
294 
295 	sc_vtb_t	*history;		/* circular history buffer */
296 	int		history_pos;		/* position shown on screen */
297 	int		history_size;		/* size of history buffer */
298 
299 	int		splash_save_mode;	/* saved mode for splash screen */
300 	int		splash_save_status;	/* saved status for splash screen */
301 #ifdef _SCR_MD_STAT_DECLARED_
302 	scr_md_stat_t	md;			/* machine dependent vars */
303 #endif
304 } scr_stat;
305 
306 #ifndef SC_NORM_ATTR
307 #define SC_NORM_ATTR		(FG_LIGHTGREY | BG_BLACK)
308 #endif
309 #ifndef SC_NORM_REV_ATTR
310 #define SC_NORM_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
311 #endif
312 #ifndef SC_KERNEL_CONS_ATTR
313 #define SC_KERNEL_CONS_ATTR	(FG_WHITE | BG_BLACK)
314 #endif
315 #ifndef SC_KERNEL_CONS_REV_ATTR
316 #define SC_KERNEL_CONS_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
317 #endif
318 
319 /* terminal emulator */
320 
321 #ifndef SC_DFLT_TERM
322 #define SC_DFLT_TERM	"*"			/* any */
323 #endif
324 
325 typedef int	sc_term_init_t(scr_stat *scp, void **tcp, int code);
326 #define SC_TE_COLD_INIT	0
327 #define SC_TE_WARM_INIT	1
328 typedef int	sc_term_term_t(scr_stat *scp, void **tcp);
329 typedef void	sc_term_puts_t(scr_stat *scp, u_char *buf, int len);
330 typedef int	sc_term_ioctl_t(scr_stat *scp, struct tty *tp, u_long cmd,
331 				caddr_t data, int flag, struct proc *p);
332 typedef int	sc_term_reset_t(scr_stat *scp, int code);
333 #define SC_TE_HARD_RESET 0
334 #define SC_TE_SOFT_RESET 1
335 typedef void	sc_term_default_attr_t(scr_stat *scp, int norm, int rev);
336 typedef void	sc_term_clear_t(scr_stat *scp);
337 typedef void	sc_term_notify_t(scr_stat *scp, int event);
338 #define SC_TE_NOTIFY_VTSWITCH_IN	0
339 #define SC_TE_NOTIFY_VTSWITCH_OUT	1
340 typedef int	sc_term_input_t(scr_stat *scp, int c, struct tty *tp);
341 
342 typedef struct sc_term_sw {
343 	LIST_ENTRY(sc_term_sw)	link;
344 	char 			*te_name;	/* name of the emulator */
345 	char 			*te_desc;	/* description */
346 	char 			*te_renderer;	/* matching renderer */
347 	size_t			te_size;	/* size of internal buffer */
348 	int			te_refcount;	/* reference counter */
349 	sc_term_init_t		*te_init;
350 	sc_term_term_t		*te_term;
351 	sc_term_puts_t		*te_puts;
352 	sc_term_ioctl_t		*te_ioctl;
353 	sc_term_reset_t		*te_reset;
354 	sc_term_default_attr_t	*te_default_attr;
355 	sc_term_clear_t		*te_clear;
356 	sc_term_notify_t	*te_notify;
357 	sc_term_input_t		*te_input;
358 } sc_term_sw_t;
359 
360 #define SCTERM_MODULE(name, sw)					\
361 	DATA_SET(scterm_set, sw);				\
362 	static int						\
363 	scterm_##name##_event(module_t mod, int type, void *data) \
364 	{							\
365 		switch (type) {					\
366 		case MOD_LOAD:					\
367 			return sc_term_add(&sw);		\
368 		case MOD_UNLOAD:				\
369 			if (sw.te_refcount > 0)			\
370 				return EBUSY;			\
371 			return sc_term_remove(&sw);		\
372 		default:					\
373 			break;					\
374 		}						\
375 		return 0;					\
376 	}							\
377 	static moduledata_t scterm_##name##_mod = {		\
378 		"scterm-" #name,				\
379 		scterm_##name##_event,				\
380 		NULL,						\
381 	};							\
382 	DECLARE_MODULE(scterm_##name, scterm_##name##_mod,	\
383 		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
384 
385 /* renderer function table */
386 typedef void	vr_clear_t(scr_stat *scp, int c, int attr);
387 typedef void	vr_draw_border_t(scr_stat *scp, int color);
388 typedef void	vr_draw_t(scr_stat *scp, int from, int count, int flip);
389 typedef void	vr_set_cursor_t(scr_stat *scp, int base, int height, int blink);
390 typedef void	vr_draw_cursor_t(scr_stat *scp, int at, int blink,
391 				 int on, int flip);
392 typedef void	vr_blink_cursor_t(scr_stat *scp, int at, int flip);
393 typedef void	vr_set_mouse_t(scr_stat *scp);
394 typedef void	vr_draw_mouse_t(scr_stat *scp, int x, int y, int on);
395 
396 typedef struct sc_rndr_sw {
397 	vr_clear_t		*clear;
398 	vr_draw_border_t	*draw_border;
399 	vr_draw_t		*draw;
400 	vr_set_cursor_t		*set_cursor;
401 	vr_draw_cursor_t	*draw_cursor;
402 	vr_blink_cursor_t	*blink_cursor;
403 	vr_set_mouse_t		*set_mouse;
404 	vr_draw_mouse_t		*draw_mouse;
405 } sc_rndr_sw_t;
406 
407 typedef struct sc_renderer {
408 	char			*name;
409 	int			mode;
410 	sc_rndr_sw_t		*rndrsw;
411 	LIST_ENTRY(sc_renderer)	link;
412 } sc_renderer_t;
413 
414 #define RENDERER(name, mode, sw, set)				\
415 	static struct sc_renderer scrndr_##name##_##mode## = {	\
416 		#name, mode, &sw				\
417 	};							\
418 	DATA_SET(scrndr_set, scrndr_##name##_##mode##);		\
419 	DATA_SET(set, scrndr_##name##_##mode##)
420 
421 #define RENDERER_MODULE(name, set)				\
422 	SET_DECLARE(set, sc_renderer_t);			\
423 	static int						\
424 	scrndr_##name##_event(module_t mod, int type, void *data) \
425 	{							\
426 		sc_renderer_t **list;				\
427 		int error = 0;					\
428 		switch (type) {					\
429 		case MOD_LOAD:					\
430 			SET_FOREACH(list, set) {		\
431 				error = sc_render_add(*list);	\
432 				if (error)			\
433 					break;			\
434 			}					\
435 			break;					\
436 		case MOD_UNLOAD:				\
437 			SET_FOREACH(list, set) {		\
438 				error = sc_render_remove(*list);\
439 				if (error)			\
440 					break;			\
441 			}					\
442 			break;					\
443 		default:					\
444 			break;					\
445 		}						\
446 		return error;					\
447 	}							\
448 	static moduledata_t scrndr_##name##_mod = {		\
449 		"scrndr-" #name,				\
450 		scrndr_##name##_event,				\
451 		NULL,						\
452 	};							\
453 	DECLARE_MODULE(scrndr_##name##, scrndr_##name##_mod, 	\
454 		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
455 
456 typedef struct {
457 	int		cursor_start;
458 	int		cursor_end;
459 	int		shift_state;
460 	int		bell_pitch;
461 } bios_values_t;
462 
463 /* other macros */
464 #define ISTEXTSC(scp)	(!((scp)->status 				\
465 			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE)))
466 #define ISGRAPHSC(scp)	(((scp)->status 				\
467 			  & (UNKNOWN_MODE | GRAPHICS_MODE)))
468 #define ISPIXELSC(scp)	(((scp)->status 				\
469 			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE))\
470 			  == PIXEL_MODE)
471 #define ISUNKNOWNSC(scp) ((scp)->status & UNKNOWN_MODE)
472 
473 #define ISMOUSEAVAIL(af) ((af) & V_ADP_FONT)
474 #define ISFONTAVAIL(af)	((af) & V_ADP_FONT)
475 #define ISPALAVAIL(af)	((af) & V_ADP_PALETTE)
476 
477 #define ISSIGVALID(sig)	((sig) > 0 && (sig) < NSIG)
478 
479 #define kbd_read_char(kbd, wait)					\
480 		(*kbdsw[(kbd)->kb_index]->read_char)((kbd), (wait))
481 #define kbd_check_char(kbd)						\
482 		(*kbdsw[(kbd)->kb_index]->check_char)((kbd))
483 #define kbd_enable(kbd)							\
484 		(*kbdsw[(kbd)->kb_index]->enable)((kbd))
485 #define kbd_disable(kbd)						\
486 		(*kbdsw[(kbd)->kb_index]->disable)((kbd))
487 #define kbd_lock(kbd, lockf)						\
488 		(*kbdsw[(kbd)->kb_index]->lock)((kbd), (lockf))
489 #define kbd_ioctl(kbd, cmd, arg)					\
490 	    (((kbd) == NULL) ?						\
491 		ENODEV : (*kbdsw[(kbd)->kb_index]->ioctl)((kbd), (cmd), (arg)))
492 #define kbd_clear_state(kbd)						\
493 		(*kbdsw[(kbd)->kb_index]->clear_state)((kbd))
494 #define kbd_get_fkeystr(kbd, fkey, len)					\
495 		(*kbdsw[(kbd)->kb_index]->get_fkeystr)((kbd), (fkey), (len))
496 #define kbd_poll(kbd, on)						\
497 		(*kbdsw[(kbd)->kb_index]->poll)((kbd), (on))
498 
499 /* syscons.c */
500 extern int 	(*sc_user_ioctl)(dev_t dev, u_long cmd, caddr_t data,
501 				 int flag, struct proc *p);
502 
503 int		sc_probe_unit(int unit, int flags);
504 int		sc_attach_unit(int unit, int flags);
505 
506 int		set_mode(scr_stat *scp);
507 
508 void		sc_set_border(scr_stat *scp, int color);
509 void		sc_load_font(scr_stat *scp, int page, int size, u_char *font,
510 			     int base, int count);
511 void		sc_save_font(scr_stat *scp, int page, int size, u_char *font,
512 			     int base, int count);
513 void		sc_show_font(scr_stat *scp, int page);
514 
515 void		sc_touch_scrn_saver(void);
516 void		sc_puts(scr_stat *scp, u_char *buf, int len);
517 void		sc_draw_cursor_image(scr_stat *scp);
518 void		sc_remove_cursor_image(scr_stat *scp);
519 void		sc_set_cursor_image(scr_stat *scp);
520 int		sc_clean_up(scr_stat *scp);
521 int		sc_switch_scr(sc_softc_t *sc, u_int next_scr);
522 void		sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard);
523 int		sc_init_emulator(scr_stat *scp, char *name);
524 void		sc_paste(scr_stat *scp, u_char *p, int count);
525 void		sc_bell(scr_stat *scp, int pitch, int duration);
526 
527 /* schistory.c */
528 #ifndef SC_NO_HISTORY
529 int		sc_alloc_history_buffer(scr_stat *scp, int lines,
530 					int prev_ysize, int wait);
531 void		sc_free_history_buffer(scr_stat *scp, int prev_ysize);
532 void		sc_hist_save(scr_stat *scp);
533 #define		sc_hist_save_one_line(scp, from)	\
534 		sc_vtb_append(&(scp)->vtb, (from), (scp)->history, (scp)->xsize)
535 int		sc_hist_restore(scr_stat *scp);
536 void		sc_hist_home(scr_stat *scp);
537 void		sc_hist_end(scr_stat *scp);
538 int		sc_hist_up_line(scr_stat *scp);
539 int		sc_hist_down_line(scr_stat *scp);
540 int		sc_hist_ioctl(struct tty *tp, u_long cmd, caddr_t data,
541 			      int flag, struct proc *p);
542 #endif /* SC_NO_HISTORY */
543 
544 /* scmouse.c */
545 #ifndef SC_NO_CUTPASTE
546 void		sc_alloc_cut_buffer(scr_stat *scp, int wait);
547 void		sc_draw_mouse_image(scr_stat *scp);
548 void		sc_remove_mouse_image(scr_stat *scp);
549 int		sc_inside_cutmark(scr_stat *scp, int pos);
550 void		sc_remove_cutmarking(scr_stat *scp);
551 void		sc_remove_all_cutmarkings(sc_softc_t *scp);
552 void		sc_remove_all_mouse(sc_softc_t *scp);
553 void		sc_mouse_paste(scr_stat *scp);
554 #else
555 #define		sc_draw_mouse_image(scp)
556 #define		sc_remove_mouse_image(scp)
557 #define		sc_inside_cutmark(scp, pos)	FALSE
558 #define		sc_remove_cutmarking(scp)
559 #define		sc_remove_all_cutmarkings(scp)
560 #define		sc_remove_all_mouse(scp)
561 #define		sc_mouse_paste(scp)
562 #endif /* SC_NO_CUTPASTE */
563 #ifndef SC_NO_SYSMOUSE
564 void		sc_mouse_move(scr_stat *scp, int x, int y);
565 int		sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data,
566 			       int flag, struct proc *p);
567 #endif /* SC_NO_SYSMOUSE */
568 
569 /* scvidctl.c */
570 int		sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode,
571 				 int xsize, int ysize, int fontsize);
572 int		sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode);
573 int		sc_set_pixel_mode(scr_stat *scp, struct tty *tp,
574 				  int xsize, int ysize, int fontsize);
575 int		sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag,
576 			     struct proc *p);
577 
578 int		sc_render_add(sc_renderer_t *rndr);
579 int		sc_render_remove(sc_renderer_t *rndr);
580 sc_rndr_sw_t	*sc_render_match(scr_stat *scp, char *name, int mode);
581 
582 /* scvtb.c */
583 void		sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows,
584 			    void *buffer, int wait);
585 void		sc_vtb_destroy(sc_vtb_t *vtb);
586 size_t		sc_vtb_size(int cols, int rows);
587 void		sc_vtb_clear(sc_vtb_t *vtb, int c, int attr);
588 
589 int		sc_vtb_getc(sc_vtb_t *vtb, int at);
590 int		sc_vtb_geta(sc_vtb_t *vtb, int at);
591 void		sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a);
592 vm_offset_t	sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a);
593 vm_offset_t	sc_vtb_pointer(sc_vtb_t *vtb, int at);
594 int		sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset);
595 
596 #define		sc_vtb_tail(vtb)	((vtb)->vtb_tail)
597 #define		sc_vtb_rows(vtb)	((vtb)->vtb_rows)
598 #define		sc_vtb_cols(vtb)	((vtb)->vtb_cols)
599 
600 void		sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to,
601 			    int count);
602 void		sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2,
603 			      int count);
604 void		sc_vtb_seek(sc_vtb_t *vtb, int pos);
605 void		sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr);
606 void		sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count);
607 void		sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr);
608 void		sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr);
609 
610 /* sysmouse.c */
611 int		sysmouse_event(mouse_info_t *info);
612 
613 /* scterm.c */
614 void		sc_move_cursor(scr_stat *scp, int x, int y);
615 void		sc_clear_screen(scr_stat *scp);
616 int		sc_term_add(sc_term_sw_t *sw);
617 int		sc_term_remove(sc_term_sw_t *sw);
618 sc_term_sw_t	*sc_term_match(char *name);
619 sc_term_sw_t	*sc_term_match_by_number(int index);
620 
621 /* machine dependent functions */
622 int		sc_max_unit(void);
623 sc_softc_t	*sc_get_softc(int unit, int flags);
624 sc_softc_t	*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd);
625 int		sc_get_cons_priority(int *unit, int *flags);
626 void		sc_get_bios_values(bios_values_t *values);
627 int		sc_tone(int herz);
628 
629 #endif /* !_DEV_SYSCONS_SYSCONS_H_ */
630