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