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the first one in the config has priority. They can be switched using userconfig(). i386/i386/conf.c: Initialize the shared syscons/pcvt cdevsw entry to `nx'. Add cdevsw registration functions. Use devsw functions of the correct type if they exist. i386/i386/cons.c: Add renamed syscons entry points to constab. i386/i386/cons.h: Declare the renamed syscons entry points. i386/i386/machdep.c: Repeat console initialization after userconfig() in case the current console has become wrong. This depends on cn functions not wiring down anything important. sys/conf.h: Declare new functions. i386/isa/isa.[ch]: Add a function to decide which display driver has priority. Should be done better. i386/isa/syscons.c: Rename pccn* -> sccn*. Initialize CRTC start address in case the previous driver has moved it. i386/isa/syscons.c, i386/isa/pcvt/* Initialize the bogusly shared variable Crtat dynamically in case the stored value was changed by the previous driver. Initialize cdevsw table from a template. Don't grab the console if another display driver has priority. i386/isa/syscons.h, i386/isa/pcvt/pcvt_hdr.h: Don't externally declare now-static cdevsw functions. i386/isa/pcvt/pcvt_hdr.h: Set the sensitive hardware flag so that pcvt doesn't always have lower priority than syscons. This also fixes the "stupid" detection of the display after filling the display with text. i386/isa/pcvt/pcvt_out.c: Don't be confused the off-screen cursor offset 0xffff set by syscons. kern/subr_xxx.c: Add enough nxio/nodev/null devsw functions of the correct type for syscons and pcvt.
209 lines
7.6 KiB
C
209 lines
7.6 KiB
C
/*-
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* Copyright (c) 1995 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: syscons.h,v 1.10 1995/07/11 18:34:30 bde Exp $
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*/
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#ifndef _I386_ISA_SYSCONS_H_
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#define _I386_ISA_SYSCONS_H_
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/* vm things */
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#define ISMAPPED(pa, width) \
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(((pa) <= (u_long)0x1000 - (width)) \
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|| ((pa) >= 0xa0000 && (pa) <= 0x100000 - (width)))
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#define pa_to_va(pa) (KERNBASE + (pa)) /* works if ISMAPPED(pa...) */
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/* printable chars */
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#define PRINTABLE(ch) ((ch) > 0x1b || ((ch) > 0x0d && (ch) < 0x1b) \
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|| (ch) < 0x07)
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/* macros for "intelligent" screen update */
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#define mark_for_update(scp, x) {\
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if ((x) < scp->start) scp->start = (x);\
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else if ((x) > scp->end) scp->end = (x);\
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}
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#define mark_all(scp) {\
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scp->start = 0;\
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scp->end = scp->xsize * scp->ysize;\
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}
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/* status flags */
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#define LOCK_KEY_MASK 0x0000F
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#define LED_MASK 0x00007
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#define UNKNOWN_MODE 0x00010
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#define KBD_RAW_MODE 0x00020
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#define SWITCH_WAIT_REL 0x00040
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#define SWITCH_WAIT_ACQ 0x00080
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#define BUFFER_SAVED 0x00100
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#define CURSOR_ENABLED 0x00200
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#define CURSOR_SHOWN 0x00400
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#define MOUSE_ENABLED 0x00800
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#define UPDATE_MOUSE 0x01000
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/* configuration flags */
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#define VISUAL_BELL 0x00001
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#define BLINK_CURSOR 0x00002
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#define CHAR_CURSOR 0x00004
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/* video hardware memory addresses */
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#define VIDEOMEM 0x000A0000
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/* misc defines */
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#define FALSE 0
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#define TRUE 1
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#define MAX_ESC_PAR 5
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#define LOAD 1
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#define SAVE 0
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#define COL 80
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#define ROW 25
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#define BELL_DURATION 5
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#define BELL_PITCH 800
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#define TIMER_FREQ 1193182 /* should be in isa.h */
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#define CONSOLE_BUFSIZE 1024
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#define PCBURST 128
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#define FONT_8 0x001
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#define FONT_14 0x002
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#define FONT_16 0x004
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#define HISTORY_SIZE 100*80
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/* defines related to hardware addresses */
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#define MONO_BASE 0x3B4 /* crt controller base mono */
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#define COLOR_BASE 0x3D4 /* crt controller base color */
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#define MISC 0x3C2 /* misc output register */
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#define ATC IO_VGA+0x00 /* attribute controller */
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#define TSIDX IO_VGA+0x04 /* timing sequencer idx */
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#define TSREG IO_VGA+0x05 /* timing sequencer data */
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#define PIXMASK IO_VGA+0x06 /* pixel write mask */
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#define PALRADR IO_VGA+0x07 /* palette read address */
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#define PALWADR IO_VGA+0x08 /* palette write address */
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#define PALDATA IO_VGA+0x09 /* palette data register */
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#define GDCIDX IO_VGA+0x0E /* graph data controller idx */
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#define GDCREG IO_VGA+0x0F /* graph data controller data */
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/* special characters */
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#define cntlc 0x03
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#define cntld 0x04
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#define bs 0x08
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#define lf 0x0a
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#define cr 0x0d
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#define del 0x7f
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#define DEAD_CHAR 0x07 /* char used for cursor */
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typedef struct term_stat {
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int esc; /* processing escape sequence */
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int num_param; /* # of parameters to ESC */
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int last_param; /* last parameter # */
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int param[MAX_ESC_PAR]; /* contains ESC parameters */
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int cur_attr; /* current attributes */
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int std_attr; /* normal attributes */
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int rev_attr; /* reverse attributes */
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} term_stat;
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typedef struct scr_stat {
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u_short *scr_buf; /* buffer when off screen */
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int xpos; /* current X position */
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int ypos; /* current Y position */
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int xsize; /* X size */
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int ysize; /* Y size */
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int start; /* modified area start */
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int end; /* modified area end */
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term_stat term; /* terminal emulation stuff */
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int status; /* status (bitfield) */
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u_short *cursor_pos; /* cursor buffer position */
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u_short cursor_saveunder; /* saved chars under cursor */
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char cursor_start; /* cursor start line # */
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char cursor_end; /* cursor end line # */
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u_short *mouse_pos; /* mouse buffer position */
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u_short *mouse_oldpos; /* mouse old buffer position */
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u_short mouse_saveunder[4]; /* saved chars under mouse */
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short mouse_xpos; /* mouse x coordinate */
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short mouse_ypos; /* mouse y coordinate */
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u_char mouse_cursor[128]; /* mouse cursor bitmap store */
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u_short bell_duration;
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u_short bell_pitch;
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u_char border; /* border color */
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u_char mode; /* mode */
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u_char font; /* font on this screen */
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pid_t pid; /* pid of controlling proc */
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struct proc *proc; /* proc* of controlling proc */
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struct vt_mode smode; /* switch mode */
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u_short *history; /* circular history buffer */
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u_short *history_head; /* current head position */
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u_short *history_pos; /* position shown on screen */
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u_short *history_save; /* save area index */
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int history_size; /* size of history buffer */
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struct apmhook r_hook; /* reconfiguration support */
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} scr_stat;
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typedef struct default_attr {
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int std_attr; /* normal attributes */
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int rev_attr; /* reverse attributes */
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} default_attr;
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/* function prototypes */
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int scprobe(struct isa_device *dev);
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int scattach(struct isa_device *dev);
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int scparam(struct tty *tp, struct termios *t);
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void scstart(struct tty *tp);
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void scintr(int unit);
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static void scinit(void);
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static u_int scgetc(int noblock);
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static scr_stat *get_scr_stat(dev_t dev);
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static scr_stat *alloc_scp(void);
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static void init_scp(scr_stat *scp);
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static int get_scr_num(void);
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static void scrn_timer(void);
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static void clear_screen(scr_stat *scp);
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static int switch_scr(scr_stat *scp, u_int next_scr);
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static void exchange_scr(void);
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static inline void move_crsr(scr_stat *scp, int x, int y);
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static void scan_esc(scr_stat *scp, u_char c);
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static inline void draw_cursor(scr_stat *scp, int show);
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static void ansi_put(scr_stat *scp, u_char *buf, int len);
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static u_char *get_fstr(u_int c, u_int *len);
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static void update_leds(int which);
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static void history_to_screen(scr_stat *scp);
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static int history_up_line(scr_stat *scp);
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static int history_down_line(scr_stat *scp);
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static void kbd_wait(void);
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static void kbd_cmd(u_char command);
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static void set_mode(scr_stat *scp);
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void set_border(int color);
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static void set_vgaregs(char *modetable);
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static void set_font_mode(void);
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static void set_normal_mode(void);
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static void copy_font(int operation, int font_type, char* font_image);
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static void set_destructive_cursor(scr_stat *scp, int force);
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static void draw_mouse_image(scr_stat *scp);
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static void save_palette(void);
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void load_palette(void);
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static void do_bell(scr_stat *scp, int pitch, int duration);
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static void blink_screen(scr_stat *scp);
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#endif /* !_I386_ISA_SYSCONS_H_ */
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