syscons.h revision 330836
1/*-
2 * Copyright (c) 1995-1998 S��ren Schmidt
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The DragonFly Project
6 * by Sascha Wildner <saw@online.de>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer,
13 *    without modification, immediately at the beginning of the file.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $FreeBSD: stable/11/sys/dev/syscons/syscons.h 330836 2018-03-13 09:46:09Z eadler $
32 */
33
34#ifndef _DEV_SYSCONS_SYSCONS_H_
35#define	_DEV_SYSCONS_SYSCONS_H_
36
37#include <sys/lock.h>
38#include <sys/mutex.h>
39
40/* machine-dependent part of the header */
41
42#ifdef PC98
43#include <pc98/cbus/sc_machdep.h>
44#elif defined(__i386__)
45/* nothing for the moment */
46#endif
47
48/* default values for configuration options */
49
50#ifndef MAXCONS
51#define MAXCONS		16
52#endif
53
54#ifdef SC_NO_SYSMOUSE
55#undef SC_NO_CUTPASTE
56#define SC_NO_CUTPASTE	1
57#endif
58
59#ifdef SC_NO_MODE_CHANGE
60#undef SC_PIXEL_MODE
61#endif
62
63/* Always load font data if the pixel (raster text) mode is to be used. */
64#ifdef SC_PIXEL_MODE
65#undef SC_NO_FONT_LOADING
66#endif
67
68/*
69 * If font data is not available, the `arrow'-shaped mouse cursor cannot
70 * be drawn.  Use the alternative drawing method.
71 */
72#ifdef SC_NO_FONT_LOADING
73#undef SC_ALT_MOUSE_IMAGE
74#define SC_ALT_MOUSE_IMAGE 1
75#endif
76
77#ifndef SC_CURSOR_CHAR
78#define SC_CURSOR_CHAR	(0x07)
79#endif
80
81#ifndef SC_MOUSE_CHAR
82#define SC_MOUSE_CHAR	(0xd0)
83#endif
84
85#if SC_MOUSE_CHAR <= SC_CURSOR_CHAR && SC_CURSOR_CHAR < (SC_MOUSE_CHAR + 4)
86#undef SC_CURSOR_CHAR
87#define SC_CURSOR_CHAR	(SC_MOUSE_CHAR + 4)
88#endif
89
90#ifndef SC_DEBUG_LEVEL
91#define SC_DEBUG_LEVEL	0
92#endif
93
94#define DPRINTF(l, p)	if (SC_DEBUG_LEVEL >= (l)) printf p
95
96#ifndef __sparc64__
97#define SC_DRIVER_NAME	"sc"
98#else
99/*
100 * Use a different driver name on sparc64 so it does not get confused
101 * with the system controller devices which are also termed 'sc' in OFW.
102 */
103#define SC_DRIVER_NAME	"syscons"
104#endif
105#define SC_VTY(dev)	(((sc_ttysoftc *)tty_softc(tp))->st_index)
106#define SC_DEV(sc, vty)	((sc)->dev[(vty) - (sc)->first_vty])
107#define SC_STAT(tp)	(*((scr_stat **)&((sc_ttysoftc *)tty_softc(tp))->st_stat))
108
109/* printable chars */
110#ifndef PRINTABLE
111#define PRINTABLE(ch)	((ch) > 0x1b || ((ch) > 0x0d && (ch) < 0x1b) \
112			 || (ch) < 0x07)
113#endif
114
115/* macros for "intelligent" screen update */
116#define mark_for_update(scp, x)	{\
117			  	    if ((x) < scp->start) scp->start = (x);\
118				    else if ((x) > scp->end) scp->end = (x);\
119				}
120#define mark_all(scp)		{\
121				    scp->start = 0;\
122				    scp->end = scp->xsize * scp->ysize - 1;\
123				}
124
125/* vty status flags (scp->status) */
126#define UNKNOWN_MODE	0x00010		/* unknown video mode */
127#define SWITCH_WAIT_REL	0x00080		/* waiting for vty release */
128#define SWITCH_WAIT_ACQ	0x00100		/* waiting for vty ack */
129#define BUFFER_SAVED	0x00200		/* vty buffer is saved */
130#define CURSOR_ENABLED 	0x00400		/* text cursor is enabled */
131#define MOUSE_MOVED	0x01000		/* mouse cursor has moved */
132#define MOUSE_CUTTING	0x02000		/* mouse cursor is cutting text */
133#define MOUSE_VISIBLE	0x04000		/* mouse cursor is showing */
134#define GRAPHICS_MODE	0x08000		/* vty is in a graphics mode */
135#define PIXEL_MODE	0x10000		/* vty is in a raster text mode */
136#define SAVER_RUNNING	0x20000		/* screen saver is running */
137#define VR_CURSOR_BLINK	0x40000		/* blinking text cursor */
138#define VR_CURSOR_ON	0x80000		/* text cursor is on */
139#define MOUSE_HIDDEN	0x100000	/* mouse cursor is temporarily hidden */
140
141/* misc defines */
142#define FALSE		0
143#define TRUE		1
144
145/*
146   The following #defines are hard-coded for a maximum text
147   resolution corresponding to a maximum framebuffer
148   resolution of 1920x1200 with an 8x8 font...
149*/
150#define	COL		240
151#define	ROW		150
152
153#define PCBURST		128
154
155#ifndef BELL_DURATION
156#define BELL_DURATION	((5 * hz + 99) / 100)
157#define BELL_PITCH	800
158#endif
159
160/* virtual terminal buffer */
161typedef struct sc_vtb {
162	int		vtb_flags;
163#define VTB_VALID	(1 << 0)
164#define VTB_ALLOCED	(1 << 1)
165	int		vtb_type;
166#define VTB_INVALID	0
167#define VTB_MEMORY	1
168#define VTB_FRAMEBUFFER	2
169#define VTB_RINGBUFFER	3
170	int		vtb_cols;
171	int		vtb_rows;
172	int		vtb_size;
173	vm_offset_t	vtb_buffer;
174	int		vtb_tail;	/* valid for VTB_RINGBUFFER only */
175} sc_vtb_t;
176
177/* text cursor attributes */
178struct cursor_attr {
179	int		flags;
180	int		base;
181	int		height;
182};
183
184/* softc */
185
186struct keyboard;
187struct video_adapter;
188struct scr_stat;
189struct tty;
190
191typedef struct sc_softc {
192	int		unit;			/* unit # */
193	int		config;			/* configuration flags */
194#define SC_VESAMODE	(1 << 7)
195#define SC_AUTODETECT_KBD (1 << 8)
196#define SC_KERNEL_CONSOLE (1 << 9)
197
198	int		flags;			/* status flags */
199#define SC_VISUAL_BELL	(1 << 0)
200#define SC_QUIET_BELL	(1 << 1)
201#if 0 /* not used anymore */
202#define SC_BLINK_CURSOR	(1 << 2)
203#define SC_CHAR_CURSOR	(1 << 3)
204#endif
205#define SC_MOUSE_ENABLED (1 << 4)
206#define	SC_SCRN_IDLE	(1 << 5)
207#define	SC_SCRN_BLANKED	(1 << 6)
208#define	SC_SAVER_FAILED	(1 << 7)
209#define	SC_SCRN_VTYLOCK	(1 << 8)
210
211#define	SC_INIT_DONE	(1 << 16)
212#define	SC_SPLASH_SCRN	(1 << 17)
213
214	int		keyboard;		/* -1 if unavailable */
215	struct keyboard	*kbd;
216
217	int		adapter;
218	struct video_adapter *adp;
219	int		initial_mode;		/* initial video mode */
220
221	int		first_vty;
222	int		vtys;
223	struct tty **dev;
224	struct scr_stat	*cur_scp;
225	struct scr_stat	*new_scp;
226	struct scr_stat	*old_scp;
227	int     	delayed_next_scr;
228
229	char        	font_loading_in_progress;
230	char        	switch_in_progress;
231	char        	write_in_progress;
232	char        	blink_in_progress;
233	int		grab_level;
234	struct mtx	scr_lock;		/* mutex for sc_puts() */
235	struct mtx	video_mtx;
236
237	long		scrn_time_stamp;
238
239	struct cursor_attr dflt_curs_attr;
240	struct cursor_attr curs_attr;
241
242	u_char      	scr_map[256];
243	u_char      	scr_rmap[256];
244
245#ifdef _SC_MD_SOFTC_DECLARED_
246	sc_md_softc_t	md;			/* machine dependent vars */
247#endif
248
249#ifndef SC_NO_PALETTE_LOADING
250	u_char		palette[256 * 3];
251#ifdef SC_PIXEL_MODE
252	u_char		palette2[256 * 3];
253#endif
254#endif
255
256#ifndef SC_NO_FONT_LOADING
257	int     	fonts_loaded;
258#define FONT_8		2
259#define FONT_14		4
260#define FONT_16		8
261#define FONT_22		8
262	u_char		*font_8;
263	u_char		*font_14;
264	u_char		*font_16;
265	u_char		*font_22;
266#endif
267
268	u_char		cursor_char;
269	u_char		mouse_char;
270
271#ifdef KDB
272	int		sc_altbrk;
273#endif
274	struct callout	ctimeout;
275	struct callout	cblink;
276} sc_softc_t;
277
278/* virtual screen */
279typedef struct scr_stat {
280	int		index;			/* index of this vty */
281	struct sc_softc *sc;			/* pointer to softc */
282	struct sc_rndr_sw *rndr;		/* renderer */
283#ifndef __sparc64__
284	sc_vtb_t	scr;
285#endif
286	sc_vtb_t	vtb;
287
288	int 		xpos;			/* current X position */
289	int 		ypos;			/* current Y position */
290	int 		xsize;			/* X text size */
291	int 		ysize;			/* Y text size */
292	int 		xpixel;			/* X graphics size */
293	int 		ypixel;			/* Y graphics size */
294	int		xoff;			/* X offset in pixel mode */
295	int		yoff;			/* Y offset in pixel mode */
296
297	u_char		*font;			/* current font */
298	int		font_size;		/* fontsize in Y direction */
299	int		font_width;		/* fontsize in X direction */
300
301	int		start;			/* modified area start */
302	int		end;			/* modified area end */
303
304	struct sc_term_sw *tsw;
305	void		*ts;
306
307	int	 	status;			/* status (bitfield) */
308	int		kbd_mode;		/* keyboard I/O mode */
309	int		kbd_prev_mode;		/* keyboard I/O mode */
310
311	int		cursor_pos;		/* cursor buffer position */
312	int		cursor_oldpos;		/* cursor old buffer position */
313	u_short		cursor_saveunder_char;	/* saved char under cursor */
314	u_short		cursor_saveunder_attr;	/* saved attr under cursor */
315	struct cursor_attr dflt_curs_attr;
316	struct cursor_attr curr_curs_attr;
317	struct cursor_attr curs_attr;
318
319	int		mouse_pos;		/* mouse buffer position */
320	int		mouse_oldpos;		/* mouse old buffer position */
321	short		mouse_xpos;		/* mouse x coordinate */
322	short		mouse_ypos;		/* mouse y coordinate */
323	short		mouse_oldxpos;		/* mouse previous x coordinate */
324	short		mouse_oldypos;		/* mouse previous y coordinate */
325	short		mouse_buttons;		/* mouse buttons */
326	int		mouse_cut_start;	/* mouse cut start pos */
327	int		mouse_cut_end;		/* mouse cut end pos */
328	int		mouse_level;		/* xterm mouse protocol */
329	struct proc 	*mouse_proc;		/* proc* of controlling proc */
330	pid_t 		mouse_pid;		/* pid of controlling proc */
331	int		mouse_signal;		/* signal # to report with */
332
333	u_short		bell_duration;
334	u_short		bell_pitch;
335
336	u_char		border;			/* border color */
337	int	 	mode;			/* mode */
338	pid_t 		pid;			/* pid of controlling proc */
339	struct proc 	*proc;			/* proc* of controlling proc */
340	struct vt_mode 	smode;			/* switch mode */
341
342	sc_vtb_t	*history;		/* circular history buffer */
343	int		history_pos;		/* position shown on screen */
344	int		history_size;		/* size of history buffer */
345
346	int		splash_save_mode;	/* saved mode for splash screen */
347	int		splash_save_status;	/* saved status for splash screen */
348#ifdef _SCR_MD_STAT_DECLARED_
349	scr_md_stat_t	md;			/* machine dependent vars */
350#endif
351} scr_stat;
352
353/* TTY softc. */
354typedef struct sc_ttysoftc {
355	int		st_index;
356	scr_stat	*st_stat;
357} sc_ttysoftc;
358
359#ifndef SC_NORM_ATTR
360#define SC_NORM_ATTR		(FG_LIGHTGREY | BG_BLACK)
361#endif
362#ifndef SC_NORM_REV_ATTR
363#define SC_NORM_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
364#endif
365#ifndef SC_KERNEL_CONS_ATTR
366#define SC_KERNEL_CONS_ATTR	(FG_WHITE | BG_BLACK)
367#endif
368#ifndef SC_KERNEL_CONS_REV_ATTR
369#define SC_KERNEL_CONS_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
370#endif
371
372/* terminal emulator */
373
374#ifndef SC_DFLT_TERM
375#define SC_DFLT_TERM	"*"			/* any */
376#endif
377
378typedef int	sc_term_init_t(scr_stat *scp, void **tcp, int code);
379#define SC_TE_COLD_INIT	0
380#define SC_TE_WARM_INIT	1
381typedef int	sc_term_term_t(scr_stat *scp, void **tcp);
382typedef void	sc_term_puts_t(scr_stat *scp, u_char *buf, int len, int kernel);
383typedef int	sc_term_ioctl_t(scr_stat *scp, struct tty *tp, u_long cmd,
384				caddr_t data, struct thread *td);
385typedef int	sc_term_reset_t(scr_stat *scp, int code);
386#define SC_TE_HARD_RESET 0
387#define SC_TE_SOFT_RESET 1
388typedef void	sc_term_default_attr_t(scr_stat *scp, int norm, int rev);
389typedef void	sc_term_clear_t(scr_stat *scp);
390typedef void	sc_term_notify_t(scr_stat *scp, int event);
391#define SC_TE_NOTIFY_VTSWITCH_IN	0
392#define SC_TE_NOTIFY_VTSWITCH_OUT	1
393typedef int	sc_term_input_t(scr_stat *scp, int c, struct tty *tp);
394typedef const char *sc_term_fkeystr_t(scr_stat *scp, int c);
395
396typedef struct sc_term_sw {
397	LIST_ENTRY(sc_term_sw)	link;
398	char 			*te_name;	/* name of the emulator */
399	char 			*te_desc;	/* description */
400	char 			*te_renderer;	/* matching renderer */
401	size_t			te_size;	/* size of internal buffer */
402	int			te_refcount;	/* reference counter */
403	sc_term_init_t		*te_init;
404	sc_term_term_t		*te_term;
405	sc_term_puts_t		*te_puts;
406	sc_term_ioctl_t		*te_ioctl;
407	sc_term_reset_t		*te_reset;
408	sc_term_default_attr_t	*te_default_attr;
409	sc_term_clear_t		*te_clear;
410	sc_term_notify_t	*te_notify;
411	sc_term_input_t		*te_input;
412	sc_term_fkeystr_t	*te_fkeystr;
413} sc_term_sw_t;
414
415#define SCTERM_MODULE(name, sw)					\
416	DATA_SET(scterm_set, sw);				\
417	static int						\
418	scterm_##name##_event(module_t mod, int type, void *data) \
419	{							\
420		switch (type) {					\
421		case MOD_LOAD:					\
422			return sc_term_add(&sw);		\
423		case MOD_UNLOAD:				\
424			if (sw.te_refcount > 0)			\
425				return EBUSY;			\
426			return sc_term_remove(&sw);		\
427		default:					\
428			return EOPNOTSUPP;			\
429			break;					\
430		}						\
431		return 0;					\
432	}							\
433	static moduledata_t scterm_##name##_mod = {		\
434		"scterm-" #name,				\
435		scterm_##name##_event,				\
436		NULL,						\
437	};							\
438	DECLARE_MODULE(scterm_##name, scterm_##name##_mod,	\
439		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
440
441/* renderer function table */
442typedef void	vr_init_t(scr_stat *scp);
443typedef void	vr_clear_t(scr_stat *scp, int c, int attr);
444typedef void	vr_draw_border_t(scr_stat *scp, int color);
445typedef void	vr_draw_t(scr_stat *scp, int from, int count, int flip);
446typedef void	vr_set_cursor_t(scr_stat *scp, int base, int height, int blink);
447typedef void	vr_draw_cursor_t(scr_stat *scp, int at, int blink,
448				 int on, int flip);
449typedef void	vr_blink_cursor_t(scr_stat *scp, int at, int flip);
450typedef void	vr_set_mouse_t(scr_stat *scp);
451typedef void	vr_draw_mouse_t(scr_stat *scp, int x, int y, int on);
452
453typedef struct sc_rndr_sw {
454	vr_init_t		*init;
455	vr_clear_t		*clear;
456	vr_draw_border_t	*draw_border;
457	vr_draw_t		*draw;
458	vr_set_cursor_t		*set_cursor;
459	vr_draw_cursor_t	*draw_cursor;
460	vr_blink_cursor_t	*blink_cursor;
461	vr_set_mouse_t		*set_mouse;
462	vr_draw_mouse_t		*draw_mouse;
463} sc_rndr_sw_t;
464
465typedef struct sc_renderer {
466	char			*name;
467	int			mode;
468	sc_rndr_sw_t		*rndrsw;
469	LIST_ENTRY(sc_renderer)	link;
470} sc_renderer_t;
471
472#define RENDERER(name, mode, sw, set)				\
473	static struct sc_renderer scrndr_##name##_##mode = {	\
474		#name, mode, &sw				\
475	};							\
476	DATA_SET(scrndr_set, scrndr_##name##_##mode);		\
477	DATA_SET(set, scrndr_##name##_##mode)
478
479#define RENDERER_MODULE(name, set)				\
480	SET_DECLARE(set, sc_renderer_t);			\
481	static int						\
482	scrndr_##name##_event(module_t mod, int type, void *data) \
483	{							\
484		sc_renderer_t **list;				\
485		int error = 0;					\
486		switch (type) {					\
487		case MOD_LOAD:					\
488			SET_FOREACH(list, set) {		\
489				error = sc_render_add(*list);	\
490				if (error)			\
491					break;			\
492			}					\
493			break;					\
494		case MOD_UNLOAD:				\
495			SET_FOREACH(list, set) {		\
496				error = sc_render_remove(*list);\
497				if (error)			\
498					break;			\
499			}					\
500			break;					\
501		default:					\
502			return EOPNOTSUPP;			\
503			break;					\
504		}						\
505		return error;					\
506	}							\
507	static moduledata_t scrndr_##name##_mod = {		\
508		"scrndr-" #name,				\
509		scrndr_##name##_event,				\
510		NULL,						\
511	};							\
512	DECLARE_MODULE(scrndr_##name, scrndr_##name##_mod, 	\
513		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
514
515typedef struct {
516	int		cursor_start;
517	int		cursor_end;
518	int		shift_state;
519	int		bell_pitch;
520} bios_values_t;
521
522/* other macros */
523#define ISTEXTSC(scp)	(!((scp)->status 				\
524			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE)))
525#define ISGRAPHSC(scp)	(((scp)->status 				\
526			  & (UNKNOWN_MODE | GRAPHICS_MODE)))
527#define ISPIXELSC(scp)	(((scp)->status 				\
528			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE))\
529			  == PIXEL_MODE)
530#define ISUNKNOWNSC(scp) ((scp)->status & UNKNOWN_MODE)
531
532#define ISMOUSEAVAIL(af) ((af) & V_ADP_FONT)
533#define ISFONTAVAIL(af)	((af) & V_ADP_FONT)
534#define ISPALAVAIL(af)	((af) & V_ADP_PALETTE)
535
536#define ISSIGVALID(sig)	((sig) > 0 && (sig) < NSIG)
537
538#define SC_VIDEO_LOCKINIT(sc)						\
539		mtx_init(&(sc)->video_mtx, "syscons video lock", NULL,	\
540		    MTX_SPIN | MTX_RECURSE);
541#define SC_VIDEO_LOCK(sc)						\
542		do {							\
543			if (!cold)					\
544				mtx_lock_spin(&(sc)->video_mtx);	\
545		} while(0)
546#define SC_VIDEO_UNLOCK(sc)						\
547		do {							\
548			if (!cold)					\
549				mtx_unlock_spin(&(sc)->video_mtx);	\
550		} while(0)
551
552/* syscons.c */
553extern int 	(*sc_user_ioctl)(struct tty *tp, u_long cmd, caddr_t data,
554				 struct thread *td);
555
556int		sc_probe_unit(int unit, int flags);
557int		sc_attach_unit(int unit, int flags);
558
559int		set_mode(scr_stat *scp);
560
561void		sc_set_border(scr_stat *scp, int color);
562void		sc_load_font(scr_stat *scp, int page, int size, int width,
563			     u_char *font, int base, int count);
564void		sc_save_font(scr_stat *scp, int page, int size, int width,
565			     u_char *font, int base, int count);
566void		sc_show_font(scr_stat *scp, int page);
567
568void		sc_touch_scrn_saver(void);
569void		sc_draw_cursor_image(scr_stat *scp);
570void		sc_remove_cursor_image(scr_stat *scp);
571void		sc_set_cursor_image(scr_stat *scp);
572void		sc_change_cursor_shape(scr_stat *scp, int flags,
573				       int base, int height);
574int		sc_clean_up(scr_stat *scp);
575int		sc_switch_scr(sc_softc_t *sc, u_int next_scr);
576void		sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard);
577int		sc_init_emulator(scr_stat *scp, char *name);
578void		sc_paste(scr_stat *scp, const u_char *p, int count);
579void		sc_respond(scr_stat *scp, const u_char *p,
580			   int count, int wakeup);
581void		sc_bell(scr_stat *scp, int pitch, int duration);
582
583/* schistory.c */
584#ifndef SC_NO_HISTORY
585int		sc_alloc_history_buffer(scr_stat *scp, int lines,
586					int prev_ysize, int wait);
587void		sc_free_history_buffer(scr_stat *scp, int prev_ysize);
588void		sc_hist_save(scr_stat *scp);
589#define		sc_hist_save_one_line(scp, from)	\
590		sc_vtb_append(&(scp)->vtb, (from), (scp)->history, (scp)->xsize)
591int		sc_hist_restore(scr_stat *scp);
592void		sc_hist_home(scr_stat *scp);
593void		sc_hist_end(scr_stat *scp);
594int		sc_hist_up_line(scr_stat *scp);
595int		sc_hist_down_line(scr_stat *scp);
596int		sc_hist_ioctl(struct tty *tp, u_long cmd, caddr_t data,
597			      struct thread *td);
598#endif /* SC_NO_HISTORY */
599
600/* scmouse.c */
601#ifndef SC_NO_CUTPASTE
602void		sc_alloc_cut_buffer(scr_stat *scp, int wait);
603void		sc_draw_mouse_image(scr_stat *scp);
604void		sc_remove_mouse_image(scr_stat *scp);
605int		sc_inside_cutmark(scr_stat *scp, int pos);
606void		sc_remove_cutmarking(scr_stat *scp);
607void		sc_remove_all_cutmarkings(sc_softc_t *scp);
608void		sc_remove_all_mouse(sc_softc_t *scp);
609void		sc_mouse_paste(scr_stat *scp);
610#else
611#define		sc_draw_mouse_image(scp)
612#define		sc_remove_mouse_image(scp)
613#define		sc_inside_cutmark(scp, pos)	FALSE
614#define		sc_remove_cutmarking(scp)
615#define		sc_remove_all_cutmarkings(scp)
616#define		sc_remove_all_mouse(scp)
617#define		sc_mouse_paste(scp)
618#endif /* SC_NO_CUTPASTE */
619#ifndef SC_NO_SYSMOUSE
620void		sc_mouse_move(scr_stat *scp, int x, int y);
621int		sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data,
622			       struct thread *td);
623#endif /* SC_NO_SYSMOUSE */
624
625/* scvidctl.c */
626int		sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode,
627				 int xsize, int ysize, int fontsize,
628				 int font_width);
629int		sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode);
630int		sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize,
631				  int ysize, int fontsize, int font_width);
632int		sc_support_pixel_mode(void *arg);
633int		sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data,
634			     struct thread *td);
635
636int		sc_render_add(sc_renderer_t *rndr);
637int		sc_render_remove(sc_renderer_t *rndr);
638sc_rndr_sw_t	*sc_render_match(scr_stat *scp, char *name, int mode);
639
640/* scvtb.c */
641void		sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows,
642			    void *buffer, int wait);
643void		sc_vtb_destroy(sc_vtb_t *vtb);
644size_t		sc_vtb_size(int cols, int rows);
645void		sc_vtb_clear(sc_vtb_t *vtb, int c, int attr);
646
647int		sc_vtb_getc(sc_vtb_t *vtb, int at);
648int		sc_vtb_geta(sc_vtb_t *vtb, int at);
649void		sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a);
650vm_offset_t	sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a);
651vm_offset_t	sc_vtb_pointer(sc_vtb_t *vtb, int at);
652int		sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset);
653
654#define		sc_vtb_tail(vtb)	((vtb)->vtb_tail)
655#define		sc_vtb_rows(vtb)	((vtb)->vtb_rows)
656#define		sc_vtb_cols(vtb)	((vtb)->vtb_cols)
657
658void		sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to,
659			    int count);
660void		sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2,
661			      int count);
662void		sc_vtb_seek(sc_vtb_t *vtb, int pos);
663void		sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr);
664void		sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count);
665void		sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr);
666void		sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr);
667
668/* sysmouse.c */
669int		sysmouse_event(mouse_info_t *info);
670
671/* scterm.c */
672void		sc_move_cursor(scr_stat *scp, int x, int y);
673void		sc_clear_screen(scr_stat *scp);
674int		sc_term_add(sc_term_sw_t *sw);
675int		sc_term_remove(sc_term_sw_t *sw);
676sc_term_sw_t	*sc_term_match(char *name);
677sc_term_sw_t	*sc_term_match_by_number(int index);
678
679/* machine dependent functions */
680int		sc_max_unit(void);
681sc_softc_t	*sc_get_softc(int unit, int flags);
682sc_softc_t	*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd);
683int		sc_get_cons_priority(int *unit, int *flags);
684void		sc_get_bios_values(bios_values_t *values);
685int		sc_tone(int herz);
686
687#endif /* !_DEV_SYSCONS_SYSCONS_H_ */
688