xref: /dragonfly/sys/dev/misc/syscons/syscons.h (revision 0bb9290e)
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: src/sys/dev/syscons/syscons.h,v 1.60.2.6 2002/09/15 22:30:45 dd Exp $
32  * $DragonFly: src/sys/dev/misc/syscons/syscons.h,v 1.16 2006/07/28 02:17:36 dillon Exp $
33  */
34 
35 #ifndef _DEV_SYSCONS_SYSCONS_H_
36 #define	_DEV_SYSCONS_SYSCONS_H_
37 
38 #include <sys/malloc.h>
39 
40 MALLOC_DECLARE(M_SYSCONS);
41 
42 /* default values for configuration options */
43 
44 #ifndef MAXCONS
45 #define MAXCONS		16	/* power of 2 */
46 #endif
47 
48 #ifdef SC_NO_SYSMOUSE
49 #undef SC_NO_CUTPASTE
50 #define SC_NO_CUTPASTE	1
51 #endif
52 
53 #ifdef SC_NO_MODE_CHANGE
54 #undef SC_PIXEL_MODE
55 #endif
56 
57 /* Always load font data if the pixel (raster text) mode is to be used. */
58 #ifdef SC_PIXEL_MODE
59 #undef SC_NO_FONT_LOADING
60 #endif
61 
62 /*
63  * If font data is not available, the `arrow'-shaped mouse cursor cannot
64  * be drawn.  Use the alternative drawing method.
65  */
66 #ifdef SC_NO_FONT_LOADING
67 #undef SC_ALT_MOUSE_IMAGE
68 #define SC_ALT_MOUSE_IMAGE 1
69 #endif
70 
71 #ifndef SC_CURSOR_CHAR
72 #define SC_CURSOR_CHAR	(0x07)
73 #endif
74 
75 #ifndef SC_MOUSE_CHAR
76 #define SC_MOUSE_CHAR	(0xd0)
77 #endif
78 
79 #if SC_MOUSE_CHAR <= SC_CURSOR_CHAR && SC_CURSOR_CHAR < (SC_MOUSE_CHAR + 4)
80 #undef SC_CURSOR_CHAR
81 #define SC_CURSOR_CHAR	(SC_MOUSE_CHAR + 4)
82 #endif
83 
84 #ifndef SC_DEBUG_LEVEL
85 #define SC_DEBUG_LEVEL	0
86 #endif
87 
88 #define DPRINTF(l, p)	if (SC_DEBUG_LEVEL >= (l)) printf p
89 
90 #define SC_DRIVER_NAME	"sc"
91 #define SC_VTY(dev)	minor(dev)
92 #define SC_DEV(sc, vty)	((sc)->dev[(vty) - (sc)->first_vty])
93 #define SC_STAT(dev)	((scr_stat *)(dev)->si_drv1)
94 
95 /* printable chars */
96 #ifndef PRINTABLE
97 #define PRINTABLE(ch)	((ch) > 0x1b || ((ch) > 0x0d && (ch) < 0x1b) \
98 			 || (ch) < 0x07)
99 #endif
100 
101 /* macros for "intelligent" screen update */
102 #define mark_for_update(scp, x)	{\
103 			  	    if ((x) < scp->start) scp->start = (x);\
104 				    else if ((x) > scp->end) scp->end = (x);\
105 				}
106 #define mark_all(scp)		{\
107 				    scp->start = 0;\
108 				    scp->end = scp->xsize * scp->ysize - 1;\
109 				}
110 
111 /* macro for calculating the drawing position in video memory */
112 #ifdef SC_PIXEL_MODE
113 #define	VIDEO_MEMORY_POS(scp, pos, x) 					\
114 	((scp)->sc->adp->va_window +					\
115 	 (x) * (scp)->xoff +						\
116 	 (scp)->yoff * (scp)->font_size * (scp)->sc->adp->va_line_width +\
117 	 (x) * ((pos) % (scp)->xsize) +					\
118 	 (scp)->font_size * (scp)->sc->adp->va_line_width * (pos / (scp)->xsize))
119 #endif
120 
121 /* vty status flags (scp->status) */
122 #define UNKNOWN_MODE	0x00010		/* unknown video mode */
123 #define SWITCH_WAIT_REL	0x00080		/* waiting for vty release */
124 #define SWITCH_WAIT_ACQ	0x00100		/* waiting for vty ack */
125 #define BUFFER_SAVED	0x00200		/* vty buffer is saved */
126 #define CURSOR_ENABLED 	0x00400		/* text cursor is enabled */
127 #define MOUSE_MOVED	0x01000		/* mouse cursor has moved */
128 #define MOUSE_CUTTING	0x02000		/* mouse cursor is cutting text */
129 #define MOUSE_VISIBLE	0x04000		/* mouse cursor is showing */
130 #define GRAPHICS_MODE	0x08000		/* vty is in a graphics mode */
131 #define PIXEL_MODE	0x10000		/* vty is in a raster text mode */
132 #define SAVER_RUNNING	0x20000		/* screen saver is running */
133 #define VR_CURSOR_BLINK	0x40000		/* blinking text cursor */
134 #define VR_CURSOR_ON	0x80000		/* text cursor is on */
135 #define MOUSE_HIDDEN	0x100000	/* mouse cursor is temporarily hidden */
136 
137 /* misc defines */
138 #define FALSE		0
139 #define TRUE		1
140 #define	COL		80
141 #define	ROW		25
142 #define PCBURST		128
143 
144 #ifndef BELL_DURATION
145 #define BELL_DURATION	((5 * hz + 99) / 100)
146 #define BELL_PITCH	800
147 #endif
148 
149 /* virtual terminal buffer */
150 typedef struct sc_vtb {
151 	int		vtb_flags;
152 #define VTB_VALID	(1 << 0)
153 #define VTB_ALLOCED	(1 << 1)
154 	int		vtb_type;
155 #define VTB_INVALID	0
156 #define VTB_MEMORY	1
157 #define VTB_FRAMEBUFFER	2
158 #define VTB_RINGBUFFER	3
159 	int		vtb_cols;
160 	int		vtb_rows;
161 	int		vtb_size;
162 	uint16_t	*vtb_buffer;
163 	int		vtb_tail;	/* valid for VTB_RINGBUFFER only */
164 } sc_vtb_t;
165 
166 /* softc */
167 
168 struct keyboard;
169 struct video_adapter;
170 struct scr_stat;
171 struct tty;
172 struct dev_ioctl_args;
173 
174 typedef struct sc_softc {
175 	int		unit;			/* unit # */
176 	int		config;			/* configuration flags */
177 #define SC_VESA800X600	(1 << 7)
178 #define SC_AUTODETECT_KBD (1 << 8)
179 #define SC_KERNEL_CONSOLE (1 << 9)
180 
181 	int		flags;			/* status flags */
182 #define SC_VISUAL_BELL	(1 << 0)
183 #define SC_QUIET_BELL	(1 << 1)
184 #define SC_BLINK_CURSOR	(1 << 2)
185 #define SC_CHAR_CURSOR	(1 << 3)
186 #define SC_MOUSE_ENABLED (1 << 4)
187 #define	SC_SCRN_IDLE	(1 << 5)
188 #define	SC_SCRN_BLANKED	(1 << 6)
189 #define	SC_SAVER_FAILED	(1 << 7)
190 #define	SC_SCRN_VTYLOCK	(1 << 8)
191 
192 #define	SC_INIT_DONE	(1 << 16)
193 #define	SC_SPLASH_SCRN	(1 << 17)
194 
195 	int		keyboard;		/* -1 if unavailable */
196 	struct keyboard	*kbd;
197 
198 	int		adapter;
199 	struct video_adapter *adp;
200 	int		initial_mode;		/* initial video mode */
201 
202 	int		first_vty;
203 	int		vtys;
204 	dev_t		*dev;
205 	struct scr_stat	*cur_scp;
206 	struct scr_stat	*new_scp;
207 	struct scr_stat	*old_scp;
208 	int     	delayed_next_scr;
209 
210 	char        	font_loading_in_progress;
211 	char        	switch_in_progress;
212 	char        	videoio_in_progress;
213 	char        	write_in_progress;
214 	char        	blink_in_progress;
215 
216 	long		scrn_time_stamp;
217 	struct callout	scrn_timer_ch;
218 
219 	char		cursor_base;
220 	char		cursor_height;
221 
222 	u_char      	scr_map[256];
223 	u_char      	scr_rmap[256];
224 
225 #ifdef _SC_MD_SOFTC_DECLARED_
226 	sc_md_softc_t	md;			/* machine dependent vars */
227 #endif
228 
229 #ifndef SC_NO_PALETTE_LOADING
230 	u_char        	palette[256*3];
231 #endif
232 
233 #ifndef SC_NO_FONT_LOADING
234 	int     	fonts_loaded;
235 #define FONT_8		2
236 #define FONT_14		4
237 #define FONT_16		8
238 	u_char		*font_8;
239 	u_char		*font_14;
240 	u_char		*font_16;
241 #endif
242 
243 	u_char		cursor_char;
244 	u_char		mouse_char;
245 
246 } sc_softc_t;
247 
248 /* virtual screen */
249 typedef struct scr_stat {
250 	int		index;			/* index of this vty */
251 	struct sc_softc *sc;			/* pointer to softc */
252 	struct sc_rndr_sw *rndr;		/* renderer */
253 	sc_vtb_t	scr;
254 	sc_vtb_t	vtb;
255 
256 	int 		xpos;			/* current X position */
257 	int 		ypos;			/* current Y position */
258 	int 		xsize;			/* X text size */
259 	int 		ysize;			/* Y text size */
260 	int 		xpixel;			/* X graphics size */
261 	int 		ypixel;			/* Y graphics size */
262 	int		xoff;			/* X offset in pixel mode */
263 	int		yoff;			/* Y offset in pixel mode */
264 
265 	u_char		*font;			/* current font */
266 	int		font_size;		/* fontsize in Y direction */
267 
268 	int		start;			/* modified area start */
269 	int		end;			/* modified area end */
270 
271 	struct sc_term_sw *tsw;
272 	void		*ts;
273 
274 	int	 	status;			/* status (bitfield) */
275 	int		kbd_mode;		/* keyboard I/O mode */
276 
277 	int		cursor_pos;		/* cursor buffer position */
278 	int		cursor_oldpos;		/* cursor old buffer position */
279 	u_short		cursor_saveunder_char;	/* saved char under cursor */
280 	u_short		cursor_saveunder_attr;	/* saved attr under cursor */
281 	char		cursor_base;		/* cursor base line # */
282 	char		cursor_height;		/* cursor height */
283 
284 	int		mouse_pos;		/* mouse buffer position */
285 	int		mouse_oldpos;		/* mouse old buffer position */
286 	short		mouse_xpos;		/* mouse x coordinate */
287 	short		mouse_ypos;		/* mouse y coordinate */
288 	short		mouse_oldxpos;		/* mouse previous x coordinate */
289 	short		mouse_oldypos;		/* mouse previous y coordinate */
290 	short		mouse_buttons;		/* mouse buttons */
291 	int		mouse_cut_start;	/* mouse cut start pos */
292 	int		mouse_cut_end;		/* mouse cut end pos */
293 	struct proc 	*mouse_proc;		/* proc* of controlling proc */
294 	pid_t 		mouse_pid;		/* pid of controlling proc */
295 	int		mouse_signal;		/* signal # to report with */
296 
297 	u_short		bell_duration;
298 	u_short		bell_pitch;
299 
300 	struct callout	blink_screen_ch;
301 
302 	uint32_t	ega_palette[16];	/* ega palette */
303 	u_char		border;			/* border color */
304 	int	 	mode;			/* mode */
305 	pid_t 		pid;			/* pid of controlling proc */
306 	struct proc 	*proc;			/* proc* of controlling proc */
307 	struct vt_mode 	smode;			/* switch mode */
308 
309 	sc_vtb_t	*history;		/* circular history buffer */
310 	int		history_pos;		/* position shown on screen */
311 	int		history_size;		/* size of history buffer */
312 
313 	int		splash_save_mode;	/* saved mode for splash screen */
314 	int		splash_save_status;	/* saved status for splash screen */
315 #ifdef _SCR_MD_STAT_DECLARED_
316 	scr_md_stat_t	md;			/* machine dependent vars */
317 #endif
318 } scr_stat;
319 
320 #ifndef SC_NORM_ATTR
321 #define SC_NORM_ATTR		(FG_LIGHTGREY | BG_BLACK)
322 #endif
323 #ifndef SC_NORM_REV_ATTR
324 #define SC_NORM_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
325 #endif
326 #ifndef SC_KERNEL_CONS_ATTR
327 #define SC_KERNEL_CONS_ATTR	(FG_WHITE | BG_BLACK)
328 #endif
329 #ifndef SC_KERNEL_CONS_REV_ATTR
330 #define SC_KERNEL_CONS_REV_ATTR	(FG_BLACK | BG_LIGHTGREY)
331 #endif
332 
333 /* terminal emulator */
334 
335 #ifndef SC_DFLT_TERM
336 #define SC_DFLT_TERM	"*"			/* any */
337 #endif
338 
339 typedef int	sc_term_init_t(scr_stat *scp, void **tcp, int code);
340 #define SC_TE_COLD_INIT	0
341 #define SC_TE_WARM_INIT	1
342 typedef int	sc_term_term_t(scr_stat *scp, void **tcp);
343 typedef void	sc_term_puts_t(scr_stat *scp, u_char *buf, int len);
344 typedef int	sc_term_ioctl_t(scr_stat *scp, struct tty *tp, u_long cmd,
345 				caddr_t data, int flag);
346 typedef int	sc_term_reset_t(scr_stat *scp, int code);
347 #define SC_TE_HARD_RESET 0
348 #define SC_TE_SOFT_RESET 1
349 typedef void	sc_term_default_attr_t(scr_stat *scp, int norm, int rev);
350 typedef void	sc_term_clear_t(scr_stat *scp);
351 typedef void	sc_term_notify_t(scr_stat *scp, int event);
352 #define SC_TE_NOTIFY_VTSWITCH_IN	0
353 #define SC_TE_NOTIFY_VTSWITCH_OUT	1
354 typedef int	sc_term_input_t(scr_stat *scp, int c, struct tty *tp);
355 
356 typedef struct sc_term_sw {
357 	LIST_ENTRY(sc_term_sw)	link;
358 	char 			*te_name;	/* name of the emulator */
359 	char 			*te_desc;	/* description */
360 	char 			*te_renderer;	/* matching renderer */
361 	size_t			te_size;	/* size of internal buffer */
362 	int			te_refcount;	/* reference counter */
363 	sc_term_init_t		*te_init;
364 	sc_term_term_t		*te_term;
365 	sc_term_puts_t		*te_puts;
366 	sc_term_ioctl_t		*te_ioctl;
367 	sc_term_reset_t		*te_reset;
368 	sc_term_default_attr_t	*te_default_attr;
369 	sc_term_clear_t		*te_clear;
370 	sc_term_notify_t	*te_notify;
371 	sc_term_input_t		*te_input;
372 } sc_term_sw_t;
373 
374 extern struct linker_set scterm_set;
375 
376 #define SCTERM_MODULE(name, sw)					\
377 	DATA_SET(scterm_set, sw);				\
378 	static int						\
379 	scterm_##name##_event(module_t mod, int type, void *data) \
380 	{							\
381 		switch (type) {					\
382 		case MOD_LOAD:					\
383 			return sc_term_add(&sw);		\
384 		case MOD_UNLOAD:				\
385 			if (sw.te_refcount > 0)			\
386 				return EBUSY;			\
387 			return sc_term_remove(&sw);		\
388 		default:					\
389 			break;					\
390 		}						\
391 		return 0;					\
392 	}							\
393 	static moduledata_t scterm_##name##_mod = {		\
394 		"scterm-" #name,				\
395 		scterm_##name##_event,				\
396 		NULL,						\
397 	};							\
398 	DECLARE_MODULE(scterm_##name, scterm_##name##_mod,	\
399 		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
400 
401 /* renderer function table */
402 typedef void	vr_init_t(scr_stat *scp);
403 typedef void	vr_draw_border_t(scr_stat *scp, int color);
404 typedef void	vr_draw_t(scr_stat *scp, int from, int count, int flip);
405 typedef void	vr_set_cursor_t(scr_stat *scp, int base, int height, int blink);
406 typedef void	vr_draw_cursor_t(scr_stat *scp, int at, int blink,
407 				 int on, int flip);
408 typedef void	vr_blink_cursor_t(scr_stat *scp, int at, int flip);
409 typedef void	vr_set_mouse_t(scr_stat *scp);
410 typedef void	vr_draw_mouse_t(scr_stat *scp, int x, int y, int on);
411 
412 typedef struct sc_rndr_sw {
413 	vr_init_t		*init;
414 	vr_draw_border_t	*draw_border;
415 	vr_draw_t		*draw;
416 	vr_set_cursor_t		*set_cursor;
417 	vr_draw_cursor_t	*draw_cursor;
418 	vr_blink_cursor_t	*blink_cursor;
419 	vr_set_mouse_t		*set_mouse;
420 	vr_draw_mouse_t		*draw_mouse;
421 } sc_rndr_sw_t;
422 
423 typedef struct sc_renderer {
424 	char			*name;
425 	int			mode;
426 	sc_rndr_sw_t		*rndrsw;
427 	LIST_ENTRY(sc_renderer)	link;
428 } sc_renderer_t;
429 
430 extern struct linker_set scrndr_set;
431 
432 #define RENDERER(name, mode, sw, set)				\
433 	static struct sc_renderer scrndr_##name##_##mode = {	\
434 		#name, mode, &sw				\
435 	};							\
436 	DATA_SET(scrndr_set, scrndr_##name##_##mode);		\
437 	DATA_SET(set, scrndr_##name##_##mode)
438 
439 #define RENDERER_MODULE(name, set)				\
440 	SET_DECLARE(set, sc_renderer_t);			\
441 	static int						\
442 	scrndr_##name##_event(module_t mod, int type, void *data) \
443 	{							\
444 		sc_renderer_t **list;				\
445 		int error = 0;					\
446 		switch (type) {					\
447 		case MOD_LOAD:					\
448 			SET_FOREACH(list, set) {		\
449 				error = sc_render_add(*list);	\
450 				if (error)			\
451 					break;			\
452 			}					\
453 			break;					\
454 		case MOD_UNLOAD:				\
455 			SET_FOREACH(list, set) {		\
456 				error = sc_render_remove(*list);	\
457 				if (error)			\
458 					break;			\
459 			}					\
460 			break;					\
461 		default:					\
462 			break;					\
463 		}						\
464 		return error;					\
465 	}							\
466 	static moduledata_t scrndr_##name##_mod = {		\
467 		"scrndr-" #name,				\
468 		scrndr_##name##_event,				\
469 		NULL,						\
470 	};							\
471 	DECLARE_MODULE(scrndr_##name, scrndr_##name##_mod, 	\
472 		       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
473 
474 typedef struct {
475 	int		cursor_start;
476 	int		cursor_end;
477 	int		shift_state;
478 	int		bell_pitch;
479 } bios_values_t;
480 
481 /* other macros */
482 #define ISTEXTSC(scp)	(!((scp)->status 				\
483 			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE)))
484 #define ISGRAPHSC(scp)	(((scp)->status 				\
485 			  & (UNKNOWN_MODE | GRAPHICS_MODE)))
486 #define ISPIXELSC(scp)	(((scp)->status 				\
487 			  & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE))\
488 			  == PIXEL_MODE)
489 #define ISUNKNOWNSC(scp) ((scp)->status & UNKNOWN_MODE)
490 
491 #define ISMOUSEAVAIL(af) ((af) & V_ADP_FONT)
492 #define ISFONTAVAIL(af)	((af) & V_ADP_FONT)
493 #define ISPALAVAIL(af)	((af) & V_ADP_PALETTE)
494 
495 #define ISSIGVALID(sig)	((sig) > 0 && (sig) < NSIG)
496 
497 #define kbd_read_char(kbd, wait)					\
498 		(*kbdsw[(kbd)->kb_index]->read_char)((kbd), (wait))
499 #define kbd_check_char(kbd)						\
500 		(*kbdsw[(kbd)->kb_index]->check_char)((kbd))
501 #define kbd_enable(kbd)							\
502 		(*kbdsw[(kbd)->kb_index]->enable)((kbd))
503 #define kbd_disable(kbd)						\
504 		(*kbdsw[(kbd)->kb_index]->disable)((kbd))
505 #define kbd_lock(kbd, lockf)						\
506 		(*kbdsw[(kbd)->kb_index]->lock)((kbd), (lockf))
507 #define kbd_ioctl(kbd, cmd, arg)					\
508 	    (((kbd) == NULL) ?						\
509 		ENODEV : (*kbdsw[(kbd)->kb_index]->ioctl)((kbd), (cmd), (arg)))
510 #define kbd_clear_state(kbd)						\
511 		(*kbdsw[(kbd)->kb_index]->clear_state)((kbd))
512 #define kbd_get_fkeystr(kbd, fkey, len)					\
513 		(*kbdsw[(kbd)->kb_index]->get_fkeystr)((kbd), (fkey), (len))
514 #define kbd_poll(kbd, on)						\
515 		(*kbdsw[(kbd)->kb_index]->poll)((kbd), (on))
516 
517 /* syscons.c */
518 extern int 	(*sc_user_ioctl)(struct dev_ioctl_args *);
519 
520 int		sc_probe_unit(int unit, int flags);
521 int		sc_attach_unit(int unit, int flags);
522 
523 int		set_mode(scr_stat *scp);
524 void		refresh_ega_palette(scr_stat *scp);
525 
526 void		sc_set_border(scr_stat *scp, int color);
527 void		sc_load_font(scr_stat *scp, int page, int size, u_char *font,
528 			     int base, int count);
529 void		sc_save_font(scr_stat *scp, int page, int size, u_char *font,
530 			     int base, int count);
531 void		sc_show_font(scr_stat *scp, int page);
532 
533 void		sc_touch_scrn_saver(void);
534 void		sc_puts(scr_stat *scp, u_char *buf, int len);
535 void		sc_draw_cursor_image(scr_stat *scp);
536 void		sc_remove_cursor_image(scr_stat *scp);
537 void		sc_set_cursor_image(scr_stat *scp);
538 int		sc_clean_up(scr_stat *scp);
539 int		sc_switch_scr(sc_softc_t *sc, u_int next_scr);
540 void		sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard);
541 int		sc_init_emulator(scr_stat *scp, char *name);
542 void		sc_paste(scr_stat *scp, u_char *p, int count);
543 void		sc_bell(scr_stat *scp, int pitch, int duration);
544 
545 /* schistory.c */
546 #ifndef SC_NO_HISTORY
547 int		sc_alloc_history_buffer(scr_stat *scp, int lines,
548 					int prev_ysize, int wait);
549 void		sc_free_history_buffer(scr_stat *scp, int prev_ysize);
550 void		sc_hist_save(scr_stat *scp);
551 #define		sc_hist_save_one_line(scp, from)	\
552 		sc_vtb_append(&(scp)->vtb, (from), (scp)->history, (scp)->xsize)
553 int		sc_hist_restore(scr_stat *scp);
554 void		sc_hist_home(scr_stat *scp);
555 void		sc_hist_end(scr_stat *scp);
556 int		sc_hist_up_line(scr_stat *scp);
557 int		sc_hist_down_line(scr_stat *scp);
558 int		sc_hist_ioctl(struct tty *tp, u_long cmd, caddr_t data,
559 			      int flag);
560 #endif /* SC_NO_HISTORY */
561 
562 /* scmouse.c */
563 #ifndef SC_NO_CUTPASTE
564 void		sc_alloc_cut_buffer(scr_stat *scp, int wait);
565 void		sc_draw_mouse_image(scr_stat *scp);
566 void		sc_remove_mouse_image(scr_stat *scp);
567 int		sc_inside_cutmark(scr_stat *scp, int pos);
568 void		sc_remove_cutmarking(scr_stat *scp);
569 void		sc_remove_all_cutmarkings(sc_softc_t *scp);
570 void		sc_remove_all_mouse(sc_softc_t *scp);
571 #else
572 #define		sc_draw_mouse_image(scp)
573 #define		sc_remove_mouse_image(scp)
574 #define		sc_inside_cutmark(scp, pos)	FALSE
575 #define		sc_remove_cutmarking(scp)
576 #define		sc_remove_all_cutmarkings(scp)
577 #define		sc_remove_all_mouse(scp)
578 #endif /* SC_NO_CUTPASTE */
579 #ifndef SC_NO_SYSMOUSE
580 void		sc_mouse_move(scr_stat *scp, int x, int y);
581 int		sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data,
582 			       int flag);
583 #endif /* SC_NO_SYSMOUSE */
584 
585 /* scvidctl.c */
586 int		sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode,
587 				 int xsize, int ysize, int fontsize);
588 int		sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode);
589 int		sc_set_pixel_mode(scr_stat *scp, struct tty *tp,
590 				  int xsize, int ysize, int fontsize);
591 int		sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data,
592 				  int flag);
593 
594 int		sc_render_add(sc_renderer_t *rndr);
595 int		sc_render_remove(sc_renderer_t *rndr);
596 sc_rndr_sw_t	*sc_render_match(scr_stat *scp, char *name, int mode);
597 
598 /* scvtb.c */
599 void		sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows,
600 			    void *buffer, int wait);
601 void		sc_vtb_destroy(sc_vtb_t *vtb);
602 size_t		sc_vtb_size(int cols, int rows);
603 void		sc_vtb_clear(sc_vtb_t *vtb, int c, int attr);
604 
605 int		sc_vtb_getc(sc_vtb_t *vtb, int at);
606 int		sc_vtb_geta(sc_vtb_t *vtb, int at);
607 void		sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a);
608 uint16_t	*sc_vtb_putchar(sc_vtb_t *vtb, uint16_t *p, int c, int a);
609 int		sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset);
610 
611 #define		sc_vtb_tail(vtb)	((vtb)->vtb_tail)
612 #define		sc_vtb_rows(vtb)	((vtb)->vtb_rows)
613 #define		sc_vtb_cols(vtb)	((vtb)->vtb_cols)
614 
615 void		sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to,
616 			    int count);
617 void		sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2,
618 			      int count);
619 void		sc_vtb_seek(sc_vtb_t *vtb, int pos);
620 void		sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr);
621 void		sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count);
622 void		sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr);
623 void		sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr);
624 
625 /* sysmouse.c */
626 int		sysmouse_event(mouse_info_t *info);
627 
628 /* scterm.c */
629 void		sc_move_cursor(scr_stat *scp, int x, int y);
630 void		sc_clear_screen(scr_stat *scp);
631 int		sc_term_add(sc_term_sw_t *sw);
632 int		sc_term_remove(sc_term_sw_t *sw);
633 sc_term_sw_t	*sc_term_match(char *name);
634 sc_term_sw_t	*sc_term_match_by_number(int index);
635 
636 /* machine dependent functions */
637 int		sc_max_unit(void);
638 sc_softc_t	*sc_get_softc(int unit, int flags);
639 sc_softc_t	*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd);
640 int		sc_get_cons_priority(int *unit, int *flags);
641 void		sc_get_bios_values(bios_values_t *values);
642 int		sc_tone(int hertz);
643 
644 #endif /* !_DEV_SYSCONS_SYSCONS_H_ */
645