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 * $FreeBSD$
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 1600x1200 with an 8x8 font...
149*/
150#define	COL		200
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	struct mtx	video_mtx;
234
235	long		scrn_time_stamp;
236
237	struct cursor_attr dflt_curs_attr;
238	struct cursor_attr curs_attr;
239
240	u_char      	scr_map[256];
241	u_char      	scr_rmap[256];
242
243#ifdef _SC_MD_SOFTC_DECLARED_
244	sc_md_softc_t	md;			/* machine dependent vars */
245#endif
246
247#ifndef SC_NO_PALETTE_LOADING
248	u_char		palette[256 * 3];
249#ifdef SC_PIXEL_MODE
250	u_char		palette2[256 * 3];
251#endif
252#endif
253
254#ifndef SC_NO_FONT_LOADING
255	int     	fonts_loaded;
256#define FONT_8		2
257#define FONT_14		4
258#define FONT_16		8
259#define FONT_22		8
260	u_char		*font_8;
261	u_char		*font_14;
262	u_char		*font_16;
263	u_char		*font_22;
264#endif
265
266	u_char		cursor_char;
267	u_char		mouse_char;
268
269#ifdef KDB
270	int		sc_altbrk;
271#endif
272} sc_softc_t;
273
274/* virtual screen */
275typedef struct scr_stat {
276	int		index;			/* index of this vty */
277	struct sc_softc *sc;			/* pointer to softc */
278	struct sc_rndr_sw *rndr;		/* renderer */
279#ifndef __sparc64__
280	sc_vtb_t	scr;
281#endif
282	sc_vtb_t	vtb;
283
284	int 		xpos;			/* current X position */
285	int 		ypos;			/* current Y position */
286	int 		xsize;			/* X text size */
287	int 		ysize;			/* Y text size */
288	int 		xpixel;			/* X graphics size */
289	int 		ypixel;			/* Y graphics size */
290	int		xoff;			/* X offset in pixel mode */
291	int		yoff;			/* Y offset in pixel mode */
292
293	u_char		*font;			/* current font */
294	int		font_size;		/* fontsize in Y direction */
295	int		font_width;		/* fontsize in X direction */
296
297	int		start;			/* modified area start */
298	int		end;			/* modified area end */
299
300	struct sc_term_sw *tsw;
301	void		*ts;
302
303	int	 	status;			/* status (bitfield) */
304	int		grabbed;
305	int		kbd_mode;		/* keyboard I/O mode */
306	int		kbd_prev_mode;		/* keyboard I/O mode */
307
308	int		cursor_pos;		/* cursor buffer position */
309	int		cursor_oldpos;		/* cursor old buffer position */
310	u_short		cursor_saveunder_char;	/* saved char under cursor */
311	u_short		cursor_saveunder_attr;	/* saved attr under cursor */
312	struct cursor_attr dflt_curs_attr;
313	struct cursor_attr curr_curs_attr;
314	struct cursor_attr curs_attr;
315
316	int		mouse_pos;		/* mouse buffer position */
317	int		mouse_oldpos;		/* mouse old buffer position */
318	short		mouse_xpos;		/* mouse x coordinate */
319	short		mouse_ypos;		/* mouse y coordinate */
320	short		mouse_oldxpos;		/* mouse previous x coordinate */
321	short		mouse_oldypos;		/* mouse previous y coordinate */
322	short		mouse_buttons;		/* mouse buttons */
323	int		mouse_cut_start;	/* mouse cut start pos */
324	int		mouse_cut_end;		/* mouse cut end pos */
325	int		mouse_level;		/* xterm mouse protocol */
326	struct proc 	*mouse_proc;		/* proc* of controlling proc */
327	pid_t 		mouse_pid;		/* pid of controlling proc */
328	int		mouse_signal;		/* signal # to report with */
329
330	u_short		bell_duration;
331	u_short		bell_pitch;
332
333	u_char		border;			/* border color */
334	int	 	mode;			/* mode */
335	pid_t 		pid;			/* pid of controlling proc */
336	struct proc 	*proc;			/* proc* of controlling proc */
337	struct vt_mode 	smode;			/* switch mode */
338
339	sc_vtb_t	*history;		/* circular history buffer */
340	int		history_pos;		/* position shown on screen */
341	int		history_size;		/* size of history buffer */
342
343	int		splash_save_mode;	/* saved mode for splash screen */
344	int		splash_save_status;	/* saved status for splash screen */
345	struct mtx	scr_lock;		/* mutex for sc_puts() */
346#ifdef _SCR_MD_STAT_DECLARED_
347	scr_md_stat_t	md;			/* machine dependent vars */
348#endif
349} scr_stat;
350
351/* TTY softc. */
352typedef struct sc_ttysoftc {
353	int		st_index;
354	scr_stat	*st_stat;
355} sc_ttysoftc;
356
357#ifndef SC_NORM_ATTR
358#define SC_NORM_ATTR		(FG_LIGHTGREY | BG_BLACK)
359#endif
360#ifndef SC_NORM_REV_ATTR
361#define SC_NORM_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
362#endif
363#ifndef SC_KERNEL_CONS_ATTR
364#define SC_KERNEL_CONS_ATTR	(FG_WHITE | BG_BLACK)
365#endif
366#ifndef SC_KERNEL_CONS_REV_ATTR
367#define SC_KERNEL_CONS_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
368#endif
369
370/* terminal emulator */
371
372#ifndef SC_DFLT_TERM
373#define SC_DFLT_TERM	"*"			/* any */
374#endif
375
376typedef int	sc_term_init_t(scr_stat *scp, void **tcp, int code);
377#define SC_TE_COLD_INIT	0
378#define SC_TE_WARM_INIT	1
379typedef int	sc_term_term_t(scr_stat *scp, void **tcp);
380typedef void	sc_term_puts_t(scr_stat *scp, u_char *buf, int len, int kernel);
381typedef int	sc_term_ioctl_t(scr_stat *scp, struct tty *tp, u_long cmd,
382				caddr_t data, struct thread *td);
383typedef int	sc_term_reset_t(scr_stat *scp, int code);
384#define SC_TE_HARD_RESET 0
385#define SC_TE_SOFT_RESET 1
386typedef void	sc_term_default_attr_t(scr_stat *scp, int norm, int rev);
387typedef void	sc_term_clear_t(scr_stat *scp);
388typedef void	sc_term_notify_t(scr_stat *scp, int event);
389#define SC_TE_NOTIFY_VTSWITCH_IN	0
390#define SC_TE_NOTIFY_VTSWITCH_OUT	1
391typedef int	sc_term_input_t(scr_stat *scp, int c, struct tty *tp);
392typedef const char *sc_term_fkeystr_t(scr_stat *scp, int c);
393
394typedef struct sc_term_sw {
395	LIST_ENTRY(sc_term_sw)	link;
396	char 			*te_name;	/* name of the emulator */
397	char 			*te_desc;	/* description */
398	char 			*te_renderer;	/* matching renderer */
399	size_t			te_size;	/* size of internal buffer */
400	int			te_refcount;	/* reference counter */
401	sc_term_init_t		*te_init;
402	sc_term_term_t		*te_term;
403	sc_term_puts_t		*te_puts;
404	sc_term_ioctl_t		*te_ioctl;
405	sc_term_reset_t		*te_reset;
406	sc_term_default_attr_t	*te_default_attr;
407	sc_term_clear_t		*te_clear;
408	sc_term_notify_t	*te_notify;
409	sc_term_input_t		*te_input;
410	sc_term_fkeystr_t	*te_fkeystr;
411} sc_term_sw_t;
412
413#define SCTERM_MODULE(name, sw)					\
414	DATA_SET(scterm_set, sw);				\
415	static int						\
416	scterm_##name##_event(module_t mod, int type, void *data) \
417	{							\
418		switch (type) {					\
419		case MOD_LOAD:					\
420			return sc_term_add(&sw);		\
421		case MOD_UNLOAD:				\
422			if (sw.te_refcount > 0)			\
423				return EBUSY;			\
424			return sc_term_remove(&sw);		\
425		default:					\
426			return EOPNOTSUPP;			\
427			break;					\
428		}						\
429		return 0;					\
430	}							\
431	static moduledata_t scterm_##name##_mod = {		\
432		"scterm-" #name,				\
433		scterm_##name##_event,				\
434		NULL,						\
435	};							\
436	DECLARE_MODULE(scterm_##name, scterm_##name##_mod,	\
437		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
438
439/* renderer function table */
440typedef void	vr_init_t(scr_stat *scp);
441typedef void	vr_clear_t(scr_stat *scp, int c, int attr);
442typedef void	vr_draw_border_t(scr_stat *scp, int color);
443typedef void	vr_draw_t(scr_stat *scp, int from, int count, int flip);
444typedef void	vr_set_cursor_t(scr_stat *scp, int base, int height, int blink);
445typedef void	vr_draw_cursor_t(scr_stat *scp, int at, int blink,
446				 int on, int flip);
447typedef void	vr_blink_cursor_t(scr_stat *scp, int at, int flip);
448typedef void	vr_set_mouse_t(scr_stat *scp);
449typedef void	vr_draw_mouse_t(scr_stat *scp, int x, int y, int on);
450
451typedef struct sc_rndr_sw {
452	vr_init_t		*init;
453	vr_clear_t		*clear;
454	vr_draw_border_t	*draw_border;
455	vr_draw_t		*draw;
456	vr_set_cursor_t		*set_cursor;
457	vr_draw_cursor_t	*draw_cursor;
458	vr_blink_cursor_t	*blink_cursor;
459	vr_set_mouse_t		*set_mouse;
460	vr_draw_mouse_t		*draw_mouse;
461} sc_rndr_sw_t;
462
463typedef struct sc_renderer {
464	char			*name;
465	int			mode;
466	sc_rndr_sw_t		*rndrsw;
467	LIST_ENTRY(sc_renderer)	link;
468} sc_renderer_t;
469
470#define RENDERER(name, mode, sw, set)				\
471	static struct sc_renderer scrndr_##name##_##mode = {	\
472		#name, mode, &sw				\
473	};							\
474	DATA_SET(scrndr_set, scrndr_##name##_##mode);		\
475	DATA_SET(set, scrndr_##name##_##mode)
476
477#define RENDERER_MODULE(name, set)				\
478	SET_DECLARE(set, sc_renderer_t);			\
479	static int						\
480	scrndr_##name##_event(module_t mod, int type, void *data) \
481	{							\
482		sc_renderer_t **list;				\
483		int error = 0;					\
484		switch (type) {					\
485		case MOD_LOAD:					\
486			SET_FOREACH(list, set) {		\
487				error = sc_render_add(*list);	\
488				if (error)			\
489					break;			\
490			}					\
491			break;					\
492		case MOD_UNLOAD:				\
493			SET_FOREACH(list, set) {		\
494				error = sc_render_remove(*list);\
495				if (error)			\
496					break;			\
497			}					\
498			break;					\
499		default:					\
500			return EOPNOTSUPP;			\
501			break;					\
502		}						\
503		return error;					\
504	}							\
505	static moduledata_t scrndr_##name##_mod = {		\
506		"scrndr-" #name,				\
507		scrndr_##name##_event,				\
508		NULL,						\
509	};							\
510	DECLARE_MODULE(scrndr_##name, scrndr_##name##_mod, 	\
511		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
512
513typedef struct {
514	int		cursor_start;
515	int		cursor_end;
516	int		shift_state;
517	int		bell_pitch;
518} bios_values_t;
519
520/* other macros */
521#define ISTEXTSC(scp)	(!((scp)->status 				\
522			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE)))
523#define ISGRAPHSC(scp)	(((scp)->status 				\
524			  & (UNKNOWN_MODE | GRAPHICS_MODE)))
525#define ISPIXELSC(scp)	(((scp)->status 				\
526			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE))\
527			  == PIXEL_MODE)
528#define ISUNKNOWNSC(scp) ((scp)->status & UNKNOWN_MODE)
529
530#define ISMOUSEAVAIL(af) ((af) & V_ADP_FONT)
531#define ISFONTAVAIL(af)	((af) & V_ADP_FONT)
532#define ISPALAVAIL(af)	((af) & V_ADP_PALETTE)
533
534#define ISSIGVALID(sig)	((sig) > 0 && (sig) < NSIG)
535
536#define SC_VIDEO_LOCKINIT(sc)						\
537		mtx_init(&(sc)->video_mtx, "syscons video lock", NULL,	\
538		    MTX_SPIN | MTX_RECURSE);
539#define SC_VIDEO_LOCK(sc)						\
540		do {							\
541			if (!cold)					\
542				mtx_lock_spin(&(sc)->video_mtx);	\
543		} while(0)
544#define SC_VIDEO_UNLOCK(sc)						\
545		do {							\
546			if (!cold)					\
547				mtx_unlock_spin(&(sc)->video_mtx);	\
548		} while(0)
549
550/* syscons.c */
551extern int 	(*sc_user_ioctl)(struct tty *tp, u_long cmd, caddr_t data,
552				 struct thread *td);
553
554int		sc_probe_unit(int unit, int flags);
555int		sc_attach_unit(int unit, int flags);
556
557int		set_mode(scr_stat *scp);
558
559void		sc_set_border(scr_stat *scp, int color);
560void		sc_load_font(scr_stat *scp, int page, int size, int width,
561			     u_char *font, int base, int count);
562void		sc_save_font(scr_stat *scp, int page, int size, int width,
563			     u_char *font, int base, int count);
564void		sc_show_font(scr_stat *scp, int page);
565
566void		sc_touch_scrn_saver(void);
567void		sc_draw_cursor_image(scr_stat *scp);
568void		sc_remove_cursor_image(scr_stat *scp);
569void		sc_set_cursor_image(scr_stat *scp);
570void		sc_change_cursor_shape(scr_stat *scp, int flags,
571				       int base, int height);
572int		sc_clean_up(scr_stat *scp);
573int		sc_switch_scr(sc_softc_t *sc, u_int next_scr);
574void		sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard);
575int		sc_init_emulator(scr_stat *scp, char *name);
576void		sc_paste(scr_stat *scp, const u_char *p, int count);
577void		sc_respond(scr_stat *scp, const u_char *p,
578			   int count, int wakeup);
579void		sc_bell(scr_stat *scp, int pitch, int duration);
580
581/* schistory.c */
582#ifndef SC_NO_HISTORY
583int		sc_alloc_history_buffer(scr_stat *scp, int lines,
584					int prev_ysize, int wait);
585void		sc_free_history_buffer(scr_stat *scp, int prev_ysize);
586void		sc_hist_save(scr_stat *scp);
587#define		sc_hist_save_one_line(scp, from)	\
588		sc_vtb_append(&(scp)->vtb, (from), (scp)->history, (scp)->xsize)
589int		sc_hist_restore(scr_stat *scp);
590void		sc_hist_home(scr_stat *scp);
591void		sc_hist_end(scr_stat *scp);
592int		sc_hist_up_line(scr_stat *scp);
593int		sc_hist_down_line(scr_stat *scp);
594int		sc_hist_ioctl(struct tty *tp, u_long cmd, caddr_t data,
595			      struct thread *td);
596#endif /* SC_NO_HISTORY */
597
598/* scmouse.c */
599#ifndef SC_NO_CUTPASTE
600void		sc_alloc_cut_buffer(scr_stat *scp, int wait);
601void		sc_draw_mouse_image(scr_stat *scp);
602void		sc_remove_mouse_image(scr_stat *scp);
603int		sc_inside_cutmark(scr_stat *scp, int pos);
604void		sc_remove_cutmarking(scr_stat *scp);
605void		sc_remove_all_cutmarkings(sc_softc_t *scp);
606void		sc_remove_all_mouse(sc_softc_t *scp);
607void		sc_mouse_paste(scr_stat *scp);
608#else
609#define		sc_draw_mouse_image(scp)
610#define		sc_remove_mouse_image(scp)
611#define		sc_inside_cutmark(scp, pos)	FALSE
612#define		sc_remove_cutmarking(scp)
613#define		sc_remove_all_cutmarkings(scp)
614#define		sc_remove_all_mouse(scp)
615#define		sc_mouse_paste(scp)
616#endif /* SC_NO_CUTPASTE */
617#ifndef SC_NO_SYSMOUSE
618void		sc_mouse_move(scr_stat *scp, int x, int y);
619int		sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data,
620			       struct thread *td);
621#endif /* SC_NO_SYSMOUSE */
622
623/* scvidctl.c */
624int		sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode,
625				 int xsize, int ysize, int fontsize,
626				 int font_width);
627int		sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode);
628int		sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize,
629				  int ysize, int fontsize, int font_width);
630int		sc_support_pixel_mode(void *arg);
631int		sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data,
632			     struct thread *td);
633
634int		sc_render_add(sc_renderer_t *rndr);
635int		sc_render_remove(sc_renderer_t *rndr);
636sc_rndr_sw_t	*sc_render_match(scr_stat *scp, char *name, int mode);
637
638/* scvtb.c */
639void		sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows,
640			    void *buffer, int wait);
641void		sc_vtb_destroy(sc_vtb_t *vtb);
642size_t		sc_vtb_size(int cols, int rows);
643void		sc_vtb_clear(sc_vtb_t *vtb, int c, int attr);
644
645int		sc_vtb_getc(sc_vtb_t *vtb, int at);
646int		sc_vtb_geta(sc_vtb_t *vtb, int at);
647void		sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a);
648vm_offset_t	sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a);
649vm_offset_t	sc_vtb_pointer(sc_vtb_t *vtb, int at);
650int		sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset);
651
652#define		sc_vtb_tail(vtb)	((vtb)->vtb_tail)
653#define		sc_vtb_rows(vtb)	((vtb)->vtb_rows)
654#define		sc_vtb_cols(vtb)	((vtb)->vtb_cols)
655
656void		sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to,
657			    int count);
658void		sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2,
659			      int count);
660void		sc_vtb_seek(sc_vtb_t *vtb, int pos);
661void		sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr);
662void		sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count);
663void		sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr);
664void		sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr);
665
666/* sysmouse.c */
667int		sysmouse_event(mouse_info_t *info);
668
669/* scterm.c */
670void		sc_move_cursor(scr_stat *scp, int x, int y);
671void		sc_clear_screen(scr_stat *scp);
672int		sc_term_add(sc_term_sw_t *sw);
673int		sc_term_remove(sc_term_sw_t *sw);
674sc_term_sw_t	*sc_term_match(char *name);
675sc_term_sw_t	*sc_term_match_by_number(int index);
676
677/* machine dependent functions */
678int		sc_max_unit(void);
679sc_softc_t	*sc_get_softc(int unit, int flags);
680sc_softc_t	*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd);
681int		sc_get_cons_priority(int *unit, int *flags);
682void		sc_get_bios_values(bios_values_t *values);
683int		sc_tone(int herz);
684
685#endif /* !_DEV_SYSCONS_SYSCONS_H_ */
686