/*- * Copyright (c) 1995-1998 Søren Schmidt * All rights reserved. * * This code is derived from software contributed to The DragonFly Project * by Sascha Wildner * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, * without modification, immediately at the beginning of the file. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _DEV_SYSCONS_SYSCONS_H_ #define _DEV_SYSCONS_SYSCONS_H_ #include #include /* machine-dependent part of the header */ #ifdef PC98 #include #elif defined(__i386__) /* nothing for the moment */ #endif /* default values for configuration options */ #ifndef MAXCONS #define MAXCONS 16 #endif #ifdef SC_NO_SYSMOUSE #undef SC_NO_CUTPASTE #define SC_NO_CUTPASTE 1 #endif #ifdef SC_NO_MODE_CHANGE #undef SC_PIXEL_MODE #endif /* Always load font data if the pixel (raster text) mode is to be used. */ #ifdef SC_PIXEL_MODE #undef SC_NO_FONT_LOADING #endif /* * If font data is not available, the `arrow'-shaped mouse cursor cannot * be drawn. Use the alternative drawing method. */ #ifdef SC_NO_FONT_LOADING #undef SC_ALT_MOUSE_IMAGE #define SC_ALT_MOUSE_IMAGE 1 #endif #ifndef SC_CURSOR_CHAR #define SC_CURSOR_CHAR (0x07) #endif #ifndef SC_MOUSE_CHAR #define SC_MOUSE_CHAR (0xd0) #endif #if SC_MOUSE_CHAR <= SC_CURSOR_CHAR && SC_CURSOR_CHAR < (SC_MOUSE_CHAR + 4) #undef SC_CURSOR_CHAR #define SC_CURSOR_CHAR (SC_MOUSE_CHAR + 4) #endif #ifndef SC_DEBUG_LEVEL #define SC_DEBUG_LEVEL 0 #endif #define DPRINTF(l, p) if (SC_DEBUG_LEVEL >= (l)) printf p #ifndef __sparc64__ #define SC_DRIVER_NAME "sc" #else /* * Use a different driver name on sparc64 so it does not get confused * with the system controller devices which are also termed 'sc' in OFW. */ #define SC_DRIVER_NAME "syscons" #endif #define SC_VTY(dev) (((sc_ttysoftc *)tty_softc(tp))->st_index) #define SC_DEV(sc, vty) ((sc)->dev[(vty) - (sc)->first_vty]) #define SC_STAT(tp) (*((scr_stat **)&((sc_ttysoftc *)tty_softc(tp))->st_stat)) /* printable chars */ #ifndef PRINTABLE #define PRINTABLE(ch) ((ch) > 0x1b || ((ch) > 0x0d && (ch) < 0x1b) \ || (ch) < 0x07) #endif /* macros for "intelligent" screen update */ #define mark_for_update(scp, x) {\ if ((x) < scp->start) scp->start = (x);\ else if ((x) > scp->end) scp->end = (x);\ } #define mark_all(scp) {\ scp->start = 0;\ scp->end = scp->xsize * scp->ysize - 1;\ } /* vty status flags (scp->status) */ #define UNKNOWN_MODE 0x00010 /* unknown video mode */ #define SWITCH_WAIT_REL 0x00080 /* waiting for vty release */ #define SWITCH_WAIT_ACQ 0x00100 /* waiting for vty ack */ #define BUFFER_SAVED 0x00200 /* vty buffer is saved */ #define CURSOR_ENABLED 0x00400 /* text cursor is enabled */ #define MOUSE_MOVED 0x01000 /* mouse cursor has moved */ #define MOUSE_CUTTING 0x02000 /* mouse cursor is cutting text */ #define MOUSE_VISIBLE 0x04000 /* mouse cursor is showing */ #define GRAPHICS_MODE 0x08000 /* vty is in a graphics mode */ #define PIXEL_MODE 0x10000 /* vty is in a raster text mode */ #define SAVER_RUNNING 0x20000 /* screen saver is running */ #define VR_CURSOR_BLINK 0x40000 /* blinking text cursor */ #define VR_CURSOR_ON 0x80000 /* text cursor is on */ #define MOUSE_HIDDEN 0x100000 /* mouse cursor is temporarily hidden */ /* misc defines */ #define FALSE 0 #define TRUE 1 /* The following #defines are hard-coded for a maximum text resolution corresponding to a maximum framebuffer resolution of 1600x1200 with an 8x8 font... */ #define COL 200 #define ROW 150 #define PCBURST 128 #ifndef BELL_DURATION #define BELL_DURATION ((5 * hz + 99) / 100) #define BELL_PITCH 800 #endif /* virtual terminal buffer */ typedef struct sc_vtb { int vtb_flags; #define VTB_VALID (1 << 0) #define VTB_ALLOCED (1 << 1) int vtb_type; #define VTB_INVALID 0 #define VTB_MEMORY 1 #define VTB_FRAMEBUFFER 2 #define VTB_RINGBUFFER 3 int vtb_cols; int vtb_rows; int vtb_size; vm_offset_t vtb_buffer; int vtb_tail; /* valid for VTB_RINGBUFFER only */ } sc_vtb_t; /* text cursor attributes */ struct cursor_attr { int flags; int base; int height; }; /* softc */ struct keyboard; struct video_adapter; struct scr_stat; struct tty; typedef struct sc_softc { int unit; /* unit # */ int config; /* configuration flags */ #define SC_VESAMODE (1 << 7) #define SC_AUTODETECT_KBD (1 << 8) #define SC_KERNEL_CONSOLE (1 << 9) int flags; /* status flags */ #define SC_VISUAL_BELL (1 << 0) #define SC_QUIET_BELL (1 << 1) #if 0 /* not used anymore */ #define SC_BLINK_CURSOR (1 << 2) #define SC_CHAR_CURSOR (1 << 3) #endif #define SC_MOUSE_ENABLED (1 << 4) #define SC_SCRN_IDLE (1 << 5) #define SC_SCRN_BLANKED (1 << 6) #define SC_SAVER_FAILED (1 << 7) #define SC_SCRN_VTYLOCK (1 << 8) #define SC_INIT_DONE (1 << 16) #define SC_SPLASH_SCRN (1 << 17) int keyboard; /* -1 if unavailable */ struct keyboard *kbd; int adapter; struct video_adapter *adp; int initial_mode; /* initial video mode */ int first_vty; int vtys; struct tty **dev; struct scr_stat *cur_scp; struct scr_stat *new_scp; struct scr_stat *old_scp; int delayed_next_scr; char font_loading_in_progress; char switch_in_progress; char write_in_progress; char blink_in_progress; struct mtx video_mtx; long scrn_time_stamp; struct cursor_attr dflt_curs_attr; struct cursor_attr curs_attr; u_char scr_map[256]; u_char scr_rmap[256]; #ifdef _SC_MD_SOFTC_DECLARED_ sc_md_softc_t md; /* machine dependent vars */ #endif #ifndef SC_NO_PALETTE_LOADING u_char palette[256 * 3]; #ifdef SC_PIXEL_MODE u_char palette2[256 * 3]; #endif #endif #ifndef SC_NO_FONT_LOADING int fonts_loaded; #define FONT_8 2 #define FONT_14 4 #define FONT_16 8 #define FONT_22 8 u_char *font_8; u_char *font_14; u_char *font_16; u_char *font_22; #endif u_char cursor_char; u_char mouse_char; #ifdef KDB int sc_altbrk; #endif } sc_softc_t; /* virtual screen */ typedef struct scr_stat { int index; /* index of this vty */ struct sc_softc *sc; /* pointer to softc */ struct sc_rndr_sw *rndr; /* renderer */ #ifndef __sparc64__ sc_vtb_t scr; #endif sc_vtb_t vtb; int xpos; /* current X position */ int ypos; /* current Y position */ int xsize; /* X text size */ int ysize; /* Y text size */ int xpixel; /* X graphics size */ int ypixel; /* Y graphics size */ int xoff; /* X offset in pixel mode */ int yoff; /* Y offset in pixel mode */ u_char *font; /* current font */ int font_size; /* fontsize in Y direction */ int font_width; /* fontsize in X direction */ int start; /* modified area start */ int end; /* modified area end */ struct sc_term_sw *tsw; void *ts; int status; /* status (bitfield) */ int kbd_mode; /* keyboard I/O mode */ int cursor_pos; /* cursor buffer position */ int cursor_oldpos; /* cursor old buffer position */ u_short cursor_saveunder_char; /* saved char under cursor */ u_short cursor_saveunder_attr; /* saved attr under cursor */ struct cursor_attr dflt_curs_attr; struct cursor_attr curr_curs_attr; struct cursor_attr curs_attr; int mouse_pos; /* mouse buffer position */ int mouse_oldpos; /* mouse old buffer position */ short mouse_xpos; /* mouse x coordinate */ short mouse_ypos; /* mouse y coordinate */ short mouse_oldxpos; /* mouse previous x coordinate */ short mouse_oldypos; /* mouse previous y coordinate */ short mouse_buttons; /* mouse buttons */ int mouse_cut_start; /* mouse cut start pos */ int mouse_cut_end; /* mouse cut end pos */ int mouse_level; /* xterm mouse protocol */ struct proc *mouse_proc; /* proc* of controlling proc */ pid_t mouse_pid; /* pid of controlling proc */ int mouse_signal; /* signal # to report with */ u_short bell_duration; u_short bell_pitch; u_char border; /* border color */ int mode; /* mode */ pid_t pid; /* pid of controlling proc */ struct proc *proc; /* proc* of controlling proc */ struct vt_mode smode; /* switch mode */ sc_vtb_t *history; /* circular history buffer */ int history_pos; /* position shown on screen */ int history_size; /* size of history buffer */ int splash_save_mode; /* saved mode for splash screen */ int splash_save_status; /* saved status for splash screen */ struct mtx scr_lock; /* mutex for sc_puts() */ #ifdef _SCR_MD_STAT_DECLARED_ scr_md_stat_t md; /* machine dependent vars */ #endif } scr_stat; /* TTY softc. */ typedef struct sc_ttysoftc { int st_index; scr_stat *st_stat; } sc_ttysoftc; #ifndef SC_NORM_ATTR #define SC_NORM_ATTR (FG_LIGHTGREY | BG_BLACK) #endif #ifndef SC_NORM_REV_ATTR #define SC_NORM_REV_ATTR (FG_BLACK | BG_LIGHTGREY) #endif #ifndef SC_KERNEL_CONS_ATTR #define SC_KERNEL_CONS_ATTR (FG_WHITE | BG_BLACK) #endif #ifndef SC_KERNEL_CONS_REV_ATTR #define SC_KERNEL_CONS_REV_ATTR (FG_BLACK | BG_LIGHTGREY) #endif /* terminal emulator */ #ifndef SC_DFLT_TERM #define SC_DFLT_TERM "*" /* any */ #endif typedef int sc_term_init_t(scr_stat *scp, void **tcp, int code); #define SC_TE_COLD_INIT 0 #define SC_TE_WARM_INIT 1 typedef int sc_term_term_t(scr_stat *scp, void **tcp); typedef void sc_term_puts_t(scr_stat *scp, u_char *buf, int len, int kernel); typedef int sc_term_ioctl_t(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data, struct thread *td); typedef int sc_term_reset_t(scr_stat *scp, int code); #define SC_TE_HARD_RESET 0 #define SC_TE_SOFT_RESET 1 typedef void sc_term_default_attr_t(scr_stat *scp, int norm, int rev); typedef void sc_term_clear_t(scr_stat *scp); typedef void sc_term_notify_t(scr_stat *scp, int event); #define SC_TE_NOTIFY_VTSWITCH_IN 0 #define SC_TE_NOTIFY_VTSWITCH_OUT 1 typedef int sc_term_input_t(scr_stat *scp, int c, struct tty *tp); typedef const char *sc_term_fkeystr_t(scr_stat *scp, int c); typedef struct sc_term_sw { LIST_ENTRY(sc_term_sw) link; char *te_name; /* name of the emulator */ char *te_desc; /* description */ char *te_renderer; /* matching renderer */ size_t te_size; /* size of internal buffer */ int te_refcount; /* reference counter */ sc_term_init_t *te_init; sc_term_term_t *te_term; sc_term_puts_t *te_puts; sc_term_ioctl_t *te_ioctl; sc_term_reset_t *te_reset; sc_term_default_attr_t *te_default_attr; sc_term_clear_t *te_clear; sc_term_notify_t *te_notify; sc_term_input_t *te_input; sc_term_fkeystr_t *te_fkeystr; } sc_term_sw_t; #define SCTERM_MODULE(name, sw) \ DATA_SET(scterm_set, sw); \ static int \ scterm_##name##_event(module_t mod, int type, void *data) \ { \ switch (type) { \ case MOD_LOAD: \ return sc_term_add(&sw); \ case MOD_UNLOAD: \ if (sw.te_refcount > 0) \ return EBUSY; \ return sc_term_remove(&sw); \ default: \ return EOPNOTSUPP; \ break; \ } \ return 0; \ } \ static moduledata_t scterm_##name##_mod = { \ "scterm-" #name, \ scterm_##name##_event, \ NULL, \ }; \ DECLARE_MODULE(scterm_##name, scterm_##name##_mod, \ SI_SUB_DRIVERS, SI_ORDER_MIDDLE) /* renderer function table */ typedef void vr_init_t(scr_stat *scp); typedef void vr_clear_t(scr_stat *scp, int c, int attr); typedef void vr_draw_border_t(scr_stat *scp, int color); typedef void vr_draw_t(scr_stat *scp, int from, int count, int flip); typedef void vr_set_cursor_t(scr_stat *scp, int base, int height, int blink); typedef void vr_draw_cursor_t(scr_stat *scp, int at, int blink, int on, int flip); typedef void vr_blink_cursor_t(scr_stat *scp, int at, int flip); typedef void vr_set_mouse_t(scr_stat *scp); typedef void vr_draw_mouse_t(scr_stat *scp, int x, int y, int on); typedef struct sc_rndr_sw { vr_init_t *init; vr_clear_t *clear; vr_draw_border_t *draw_border; vr_draw_t *draw; vr_set_cursor_t *set_cursor; vr_draw_cursor_t *draw_cursor; vr_blink_cursor_t *blink_cursor; vr_set_mouse_t *set_mouse; vr_draw_mouse_t *draw_mouse; } sc_rndr_sw_t; typedef struct sc_renderer { char *name; int mode; sc_rndr_sw_t *rndrsw; LIST_ENTRY(sc_renderer) link; } sc_renderer_t; #define RENDERER(name, mode, sw, set) \ static struct sc_renderer scrndr_##name##_##mode = { \ #name, mode, &sw \ }; \ DATA_SET(scrndr_set, scrndr_##name##_##mode); \ DATA_SET(set, scrndr_##name##_##mode) #define RENDERER_MODULE(name, set) \ SET_DECLARE(set, sc_renderer_t); \ static int \ scrndr_##name##_event(module_t mod, int type, void *data) \ { \ sc_renderer_t **list; \ int error = 0; \ switch (type) { \ case MOD_LOAD: \ SET_FOREACH(list, set) { \ error = sc_render_add(*list); \ if (error) \ break; \ } \ break; \ case MOD_UNLOAD: \ SET_FOREACH(list, set) { \ error = sc_render_remove(*list);\ if (error) \ break; \ } \ break; \ default: \ return EOPNOTSUPP; \ break; \ } \ return error; \ } \ static moduledata_t scrndr_##name##_mod = { \ "scrndr-" #name, \ scrndr_##name##_event, \ NULL, \ }; \ DECLARE_MODULE(scrndr_##name, scrndr_##name##_mod, \ SI_SUB_DRIVERS, SI_ORDER_MIDDLE) typedef struct { int cursor_start; int cursor_end; int shift_state; int bell_pitch; } bios_values_t; /* other macros */ #define ISTEXTSC(scp) (!((scp)->status \ & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE))) #define ISGRAPHSC(scp) (((scp)->status \ & (UNKNOWN_MODE | GRAPHICS_MODE))) #define ISPIXELSC(scp) (((scp)->status \ & (UNKNOWN_MODE | GRAPHICS_MODE | PIXEL_MODE))\ == PIXEL_MODE) #define ISUNKNOWNSC(scp) ((scp)->status & UNKNOWN_MODE) #define ISMOUSEAVAIL(af) ((af) & V_ADP_FONT) #define ISFONTAVAIL(af) ((af) & V_ADP_FONT) #define ISPALAVAIL(af) ((af) & V_ADP_PALETTE) #define ISSIGVALID(sig) ((sig) > 0 && (sig) < NSIG) #define SC_VIDEO_LOCKINIT(sc) \ mtx_init(&(sc)->video_mtx, "syscons video lock", NULL, \ MTX_SPIN | MTX_RECURSE); #define SC_VIDEO_LOCK(sc) \ do { \ if (!cold) \ mtx_lock_spin(&(sc)->video_mtx); \ } while(0) #define SC_VIDEO_UNLOCK(sc) \ do { \ if (!cold) \ mtx_unlock_spin(&(sc)->video_mtx); \ } while(0) /* syscons.c */ extern int (*sc_user_ioctl)(struct tty *tp, u_long cmd, caddr_t data, struct thread *td); int sc_probe_unit(int unit, int flags); int sc_attach_unit(int unit, int flags); int set_mode(scr_stat *scp); void sc_set_border(scr_stat *scp, int color); void sc_load_font(scr_stat *scp, int page, int size, int width, u_char *font, int base, int count); void sc_save_font(scr_stat *scp, int page, int size, int width, u_char *font, int base, int count); void sc_show_font(scr_stat *scp, int page); void sc_touch_scrn_saver(void); void sc_draw_cursor_image(scr_stat *scp); void sc_remove_cursor_image(scr_stat *scp); void sc_set_cursor_image(scr_stat *scp); void sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height); int sc_clean_up(scr_stat *scp); int sc_switch_scr(sc_softc_t *sc, u_int next_scr); void sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard); int sc_init_emulator(scr_stat *scp, char *name); void sc_paste(scr_stat *scp, const u_char *p, int count); void sc_respond(scr_stat *scp, const u_char *p, int count, int wakeup); void sc_bell(scr_stat *scp, int pitch, int duration); /* schistory.c */ #ifndef SC_NO_HISTORY int sc_alloc_history_buffer(scr_stat *scp, int lines, int prev_ysize, int wait); void sc_free_history_buffer(scr_stat *scp, int prev_ysize); void sc_hist_save(scr_stat *scp); #define sc_hist_save_one_line(scp, from) \ sc_vtb_append(&(scp)->vtb, (from), (scp)->history, (scp)->xsize) int sc_hist_restore(scr_stat *scp); void sc_hist_home(scr_stat *scp); void sc_hist_end(scr_stat *scp); int sc_hist_up_line(scr_stat *scp); int sc_hist_down_line(scr_stat *scp); int sc_hist_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td); #endif /* SC_NO_HISTORY */ /* scmouse.c */ #ifndef SC_NO_CUTPASTE void sc_alloc_cut_buffer(scr_stat *scp, int wait); void sc_draw_mouse_image(scr_stat *scp); void sc_remove_mouse_image(scr_stat *scp); int sc_inside_cutmark(scr_stat *scp, int pos); void sc_remove_cutmarking(scr_stat *scp); void sc_remove_all_cutmarkings(sc_softc_t *scp); void sc_remove_all_mouse(sc_softc_t *scp); void sc_mouse_paste(scr_stat *scp); #else #define sc_draw_mouse_image(scp) #define sc_remove_mouse_image(scp) #define sc_inside_cutmark(scp, pos) FALSE #define sc_remove_cutmarking(scp) #define sc_remove_all_cutmarkings(scp) #define sc_remove_all_mouse(scp) #define sc_mouse_paste(scp) #endif /* SC_NO_CUTPASTE */ #ifndef SC_NO_SYSMOUSE void sc_mouse_move(scr_stat *scp, int x, int y); int sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td); #endif /* SC_NO_SYSMOUSE */ /* scvidctl.c */ int sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize, int fontsize, int font_width); int sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode); int sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize, int fontsize, int font_width); int sc_support_pixel_mode(void *arg); int sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td); int sc_render_add(sc_renderer_t *rndr); int sc_render_remove(sc_renderer_t *rndr); sc_rndr_sw_t *sc_render_match(scr_stat *scp, char *name, int mode); /* scvtb.c */ void sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows, void *buffer, int wait); void sc_vtb_destroy(sc_vtb_t *vtb); size_t sc_vtb_size(int cols, int rows); void sc_vtb_clear(sc_vtb_t *vtb, int c, int attr); int sc_vtb_getc(sc_vtb_t *vtb, int at); int sc_vtb_geta(sc_vtb_t *vtb, int at); void sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a); vm_offset_t sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a); vm_offset_t sc_vtb_pointer(sc_vtb_t *vtb, int at); int sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset); #define sc_vtb_tail(vtb) ((vtb)->vtb_tail) #define sc_vtb_rows(vtb) ((vtb)->vtb_rows) #define sc_vtb_cols(vtb) ((vtb)->vtb_cols) void sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to, int count); void sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int count); void sc_vtb_seek(sc_vtb_t *vtb, int pos); void sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr); void sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count); void sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr); void sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr); /* sysmouse.c */ int sysmouse_event(mouse_info_t *info); /* scterm.c */ void sc_move_cursor(scr_stat *scp, int x, int y); void sc_clear_screen(scr_stat *scp); int sc_term_add(sc_term_sw_t *sw); int sc_term_remove(sc_term_sw_t *sw); sc_term_sw_t *sc_term_match(char *name); sc_term_sw_t *sc_term_match_by_number(int index); /* machine dependent functions */ int sc_max_unit(void); sc_softc_t *sc_get_softc(int unit, int flags); sc_softc_t *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd); int sc_get_cons_priority(int *unit, int *flags); void sc_get_bios_values(bios_values_t *values); int sc_tone(int herz); #endif /* !_DEV_SYSCONS_SYSCONS_H_ */