OpenCores
URL https://opencores.org/ocsvn/or1k_old/or1k_old/trunk

Subversion Repositories or1k_old

[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [arch/] [m68k/] [kernel/] [console.c] - Diff between revs 1765 and 1782

Only display areas with differences | Details | Blame | View Log

Rev 1765 Rev 1782
/*
/*
 *  linux/drivers/char/console.c
 *  linux/drivers/char/console.c
 *
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 *  Copyright (C) 1991, 1992  Linus Torvalds
 */
 */
/*
/*
 *      console.c
 *      console.c
 *
 *
 * This module exports the console io functions:
 * This module exports the console io functions:
 *
 *
 *     'void do_keyboard_interrupt(void)'
 *     'void do_keyboard_interrupt(void)'
 *
 *
 *     'int vc_allocate(unsigned int console)'
 *     'int vc_allocate(unsigned int console)'
 *     'int vc_cons_allocated(unsigned int console)'
 *     'int vc_cons_allocated(unsigned int console)'
 *     'int vc_resize(unsigned long lines, unsigned long cols)'
 *     'int vc_resize(unsigned long lines, unsigned long cols)'
 *     'int vc_resize_con(unsigned long lines, unsigned long cols,
 *     'int vc_resize_con(unsigned long lines, unsigned long cols,
 *                        unsigned int currcons)'
 *                        unsigned int currcons)'
 *     'void vc_disallocate(unsigned int currcons)'
 *     'void vc_disallocate(unsigned int currcons)'
 *
 *
 *     'unsigned long con_init(unsigned long)'
 *     'unsigned long con_init(unsigned long)'
 *     'int con_open(struct tty_struct *tty, struct file * filp)'
 *     'int con_open(struct tty_struct *tty, struct file * filp)'
 *     'void con_write(struct tty_struct * tty)'
 *     'void con_write(struct tty_struct * tty)'
 *     'void console_print(const char * b)'
 *     'void console_print(const char * b)'
 *     'void update_screen(int new_console)'
 *     'void update_screen(int new_console)'
 *
 *
 *     'void do_blank_screen(int)'
 *     'void do_blank_screen(int)'
 *     'void do_unblank_screen(void)'
 *     'void do_unblank_screen(void)'
 *     'void poke_blanked_console(void)'
 *     'void poke_blanked_console(void)'
 *
 *
 *     'unsigned short *screen_pos(int currcons, int w_offset, int viewed)'
 *     'unsigned short *screen_pos(int currcons, int w_offset, int viewed)'
 *     'void complement_pos(int currcons, int offset)'
 *     'void complement_pos(int currcons, int offset)'
 *     'void invert_screen(int currcons, int offset, int count, int shift)'
 *     'void invert_screen(int currcons, int offset, int count, int shift)'
 *
 *
 *     'void scrollback(int lines)'
 *     'void scrollback(int lines)'
 *     'void scrollfront(int lines)'
 *     'void scrollfront(int lines)'
 *
 *
 *     'int con_get_font(char *)'
 *     'int con_get_font(char *)'
 *     'int con_set_font(char *)'
 *     'int con_set_font(char *)'
 *
 *
 *     'void mouse_report(struct tty_struct * tty, int butt, int mrx, int mry)'
 *     'void mouse_report(struct tty_struct * tty, int butt, int mrx, int mry)'
 *     'int mouse_reporting(void)'
 *     'int mouse_reporting(void)'
 *
 *
 *     'unsigned long get_video_num_lines(unsigned int console)'
 *     'unsigned long get_video_num_lines(unsigned int console)'
 *     'unsigned long get_video_num_columns(unsigned int console)'
 *     'unsigned long get_video_num_columns(unsigned int console)'
 *     'unsigned long get_video_size_row(unsigned int console)'
 *     'unsigned long get_video_size_row(unsigned int console)'
 *
 *
 * Hopefully this will be a rather complete VT102 implementation.
 * Hopefully this will be a rather complete VT102 implementation.
 *
 *
 * Beeping thanks to John T Kohl.
 * Beeping thanks to John T Kohl.
 *
 *
 * Virtual Consoles, Screen Blanking, Screen Dumping, Color, Graphics
 * Virtual Consoles, Screen Blanking, Screen Dumping, Color, Graphics
 *   Chars, and VT100 enhancements by Peter MacDonald.
 *   Chars, and VT100 enhancements by Peter MacDonald.
 *
 *
 * Copy and paste function by Andrew Haylett,
 * Copy and paste function by Andrew Haylett,
 *   some enhancements by Alessandro Rubini.
 *   some enhancements by Alessandro Rubini.
 *
 *
 * User definable mapping table and font loading by Eugene G. Crosser,
 * User definable mapping table and font loading by Eugene G. Crosser,
 * <crosser@pccross.msk.su>
 * <crosser@pccross.msk.su>
 *
 *
 * Code to check for different video-cards mostly by Galen Hunt,
 * Code to check for different video-cards mostly by Galen Hunt,
 * <g-hunt@ee.utah.edu>
 * <g-hunt@ee.utah.edu>
 *
 *
 * Rudimentary ISO 10646/Unicode/UTF-8 character set support by
 * Rudimentary ISO 10646/Unicode/UTF-8 character set support by
 * Markus Kuhn, <mskuhn@immd4.informatik.uni-erlangen.de>.
 * Markus Kuhn, <mskuhn@immd4.informatik.uni-erlangen.de>.
 *
 *
 * Dynamic allocation of consoles, aeb@cwi.nl, May 1994
 * Dynamic allocation of consoles, aeb@cwi.nl, May 1994
 * Resizing of consoles, aeb, 940926
 * Resizing of consoles, aeb, 940926
 *
 *
 * Code for xterm like mouse click reporting by Peter Orbaek 20-Jul-94
 * Code for xterm like mouse click reporting by Peter Orbaek 20-Jul-94
 * <poe@daimi.aau.dk>
 * <poe@daimi.aau.dk>
 *
 *
 * 680x0 LINUX support by Arno Griffioen (arno@usn.nl)
 * 680x0 LINUX support by Arno Griffioen (arno@usn.nl)
 *
 *
 * 9-Apr-94:  Arno Griffioen: fixed scrolling and delete-char bug.
 * 9-Apr-94:  Arno Griffioen: fixed scrolling and delete-char bug.
 *            Scrolling code moved to amicon.c
 *            Scrolling code moved to amicon.c
 *
 *
 * 18-Apr-94: David Carter [carter@cs.bris.ac.uk]. 680x0 LINUX modified
 * 18-Apr-94: David Carter [carter@cs.bris.ac.uk]. 680x0 LINUX modified
 *            Integrated support for new low level driver `amicon_ocs.c'
 *            Integrated support for new low level driver `amicon_ocs.c'
 *
 *
 */
 */
 
 
#define BLANK 0x0020
#define BLANK 0x0020
#undef CAN_LOAD_EGA_FONTS    /* undefine if the user must not do this */
#undef CAN_LOAD_EGA_FONTS    /* undefine if the user must not do this */
 
 
/* A bitmap for codes <32. A bit of 1 indicates that the code
/* A bitmap for codes <32. A bit of 1 indicates that the code
 * corresponding to that bit number invokes some special action
 * corresponding to that bit number invokes some special action
 * (such as cursor movement) and should not be displayed as a
 * (such as cursor movement) and should not be displayed as a
 * glyph unless the disp_ctrl mode is explicitly enabled.
 * glyph unless the disp_ctrl mode is explicitly enabled.
 */
 */
#define CTRL_ACTION 0x0d00ff81
#define CTRL_ACTION 0x0d00ff81
#define CTRL_ALWAYS 0x0800f501  /* Cannot be overridden by disp_ctrl */
#define CTRL_ALWAYS 0x0800f501  /* Cannot be overridden by disp_ctrl */
 
 
/*
/*
 * Here is the default bell parameters: 750HZ, 1/8th of a second
 * Here is the default bell parameters: 750HZ, 1/8th of a second
 */
 */
#define DEFAULT_BELL_PITCH      750
#define DEFAULT_BELL_PITCH      750
#define DEFAULT_BELL_DURATION   (HZ/8)
#define DEFAULT_BELL_DURATION   (HZ/8)
 
 
/*
/*
 *  NOTE!!! We sometimes disable and enable interrupts for a short while
 *  NOTE!!! We sometimes disable and enable interrupts for a short while
 * (to put a word in video IO), but this will work even for keyboard
 * (to put a word in video IO), but this will work even for keyboard
 * interrupts. We know interrupts aren't enabled when getting a keyboard
 * interrupts. We know interrupts aren't enabled when getting a keyboard
 * interrupt, as we use trap-gates. Hopefully all is well.
 * interrupt, as we use trap-gates. Hopefully all is well.
 */
 */
 
 
#include <linux/sched.h>
#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/tty_flip.h>
#include <linux/kernel.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/errno.h>
#include <linux/console.h>
#include <linux/console.h>
#include <linux/kd.h>
#include <linux/kd.h>
#include <linux/malloc.h>
#include <linux/malloc.h>
#include <linux/major.h>
#include <linux/major.h>
#include <linux/mm.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/ioport.h>
 
 
#include <asm/io.h>
#include <asm/io.h>
#include <asm/segment.h>
#include <asm/segment.h>
#include <asm/system.h>
#include <asm/system.h>
#include <asm/bitops.h>
#include <asm/bitops.h>
 
 
#include "../../../drivers/char/kbd_kern.h"
#include "../../../drivers/char/kbd_kern.h"
#include "../../../drivers/char/vt_kern.h"
#include "../../../drivers/char/vt_kern.h"
#include "../../../drivers/char/consolemap.h"
#include "../../../drivers/char/consolemap.h"
#include "../../../drivers/char/selection.h"
#include "../../../drivers/char/selection.h"
 
 
 
 
#ifndef MIN
#ifndef MIN
#define MIN(a,b)        ((a) < (b) ? (a) : (b))
#define MIN(a,b)        ((a) < (b) ? (a) : (b))
#endif
#endif
 
 
struct tty_driver console_driver;
struct tty_driver console_driver;
static int console_refcount;
static int console_refcount;
static struct tty_struct *console_table[MAX_NR_CONSOLES];
static struct tty_struct *console_table[MAX_NR_CONSOLES];
static struct termios *console_termios[MAX_NR_CONSOLES];
static struct termios *console_termios[MAX_NR_CONSOLES];
static struct termios *console_termios_locked[MAX_NR_CONSOLES];
static struct termios *console_termios_locked[MAX_NR_CONSOLES];
 
 
static void vc_init(unsigned int console, int do_clear);
static void vc_init(unsigned int console, int do_clear);
 
 
static void update_attr(int currcons);
static void update_attr(int currcons);
static void gotoxy(int currcons, int new_x, int new_y);
static void gotoxy(int currcons, int new_x, int new_y);
static void save_cur(int currcons);
static void save_cur(int currcons);
static void blank_screen(void);
static void blank_screen(void);
static void unblank_screen(void);
static void unblank_screen(void);
extern void change_console(unsigned int);
extern void change_console(unsigned int);
static inline void set_cursor(int currcons);
static inline void set_cursor(int currcons);
static void reset_terminal(int currcons, int do_clear);
static void reset_terminal(int currcons, int do_clear);
extern void reset_vc(unsigned int new_console);
extern void reset_vc(unsigned int new_console);
extern void vt_init(void);
extern void vt_init(void);
extern void register_console(void (*proc)(const char *));
extern void register_console(void (*proc)(const char *));
extern void vesa_blank(void);
extern void vesa_blank(void);
extern void vesa_unblank(void);
extern void vesa_unblank(void);
extern void compute_shiftstate(void);
extern void compute_shiftstate(void);
void poke_blanked_console(void);
void poke_blanked_console(void);
void do_blank_screen(int);
void do_blank_screen(int);
 
 
unsigned long   video_num_lines;
unsigned long   video_num_lines;
unsigned long   video_num_columns;
unsigned long   video_num_columns;
unsigned long   video_size_row;
unsigned long   video_size_row;
 
 
static int printable = 0;                        /* Is console ready for printing? */
static int printable = 0;                        /* Is console ready for printing? */
unsigned long video_font_height;        /* Height of current screen font */
unsigned long video_font_height;        /* Height of current screen font */
unsigned long video_scan_lines;         /* Number of scan lines on screen */
unsigned long video_scan_lines;         /* Number of scan lines on screen */
unsigned long default_font_height;      /* Height of default screen font */
unsigned long default_font_height;      /* Height of default screen font */
int           video_mode_512ch = 0;      /* 512-character mode */
int           video_mode_512ch = 0;      /* 512-character mode */
static unsigned short console_charmask = 0x0ff;
static unsigned short console_charmask = 0x0ff;
 
 
static unsigned short *vc_scrbuf[MAX_NR_CONSOLES];
static unsigned short *vc_scrbuf[MAX_NR_CONSOLES];
 
 
/* used by kbd_bh - set by keyboard_interrupt */
/* used by kbd_bh - set by keyboard_interrupt */
       int do_poke_blanked_console = 0;
       int do_poke_blanked_console = 0;
       int console_blanked = 0;
       int console_blanked = 0;
static int blankinterval = 10*60*HZ;
static int blankinterval = 10*60*HZ;
 
 
static struct vc {
static struct vc {
        struct vc_data *d;
        struct vc_data *d;
 
 
        /* might add  scrmem, vt_struct, kbd  at some time,
        /* might add  scrmem, vt_struct, kbd  at some time,
           to have everything in one place - the disadvantage
           to have everything in one place - the disadvantage
           would be that vc_cons etc can no longer be static */
           would be that vc_cons etc can no longer be static */
} vc_cons [MAX_NR_CONSOLES];
} vc_cons [MAX_NR_CONSOLES];
struct consw *conswitchp;
struct consw *conswitchp;
 
 
#define cols            (vc_cons[currcons].d->vc_cols)
#define cols            (vc_cons[currcons].d->vc_cols)
#define rows            (vc_cons[currcons].d->vc_rows)
#define rows            (vc_cons[currcons].d->vc_rows)
#define size_row        (vc_cons[currcons].d->vc_size_row)
#define size_row        (vc_cons[currcons].d->vc_size_row)
#define screenbuf_size  (vc_cons[currcons].d->vc_screenbuf_size)
#define screenbuf_size  (vc_cons[currcons].d->vc_screenbuf_size)
#define cons_num        (vc_cons[currcons].d->vc_num)
#define cons_num        (vc_cons[currcons].d->vc_num)
#define origin          (vc_cons[currcons].d->vc_origin)
#define origin          (vc_cons[currcons].d->vc_origin)
#define scr_end         (vc_cons[currcons].d->vc_scr_end)
#define scr_end         (vc_cons[currcons].d->vc_scr_end)
#define pos             (vc_cons[currcons].d->vc_pos)
#define pos             (vc_cons[currcons].d->vc_pos)
#define top             (vc_cons[currcons].d->vc_top)
#define top             (vc_cons[currcons].d->vc_top)
#define bottom          (vc_cons[currcons].d->vc_bottom)
#define bottom          (vc_cons[currcons].d->vc_bottom)
#define x               (vc_cons[currcons].d->vc_x)
#define x               (vc_cons[currcons].d->vc_x)
#define y               (vc_cons[currcons].d->vc_y)
#define y               (vc_cons[currcons].d->vc_y)
#define vc_state        (vc_cons[currcons].d->vc_state)
#define vc_state        (vc_cons[currcons].d->vc_state)
#define npar            (vc_cons[currcons].d->vc_npar)
#define npar            (vc_cons[currcons].d->vc_npar)
#define par             (vc_cons[currcons].d->vc_par)
#define par             (vc_cons[currcons].d->vc_par)
#define ques            (vc_cons[currcons].d->vc_ques)
#define ques            (vc_cons[currcons].d->vc_ques)
#define attr            (vc_cons[currcons].d->vc_attr)
#define attr            (vc_cons[currcons].d->vc_attr)
#define saved_x         (vc_cons[currcons].d->vc_saved_x)
#define saved_x         (vc_cons[currcons].d->vc_saved_x)
#define saved_y         (vc_cons[currcons].d->vc_saved_y)
#define saved_y         (vc_cons[currcons].d->vc_saved_y)
#define translate       (vc_cons[currcons].d->vc_translate)
#define translate       (vc_cons[currcons].d->vc_translate)
#define G0_charset      (vc_cons[currcons].d->vc_G0_charset)
#define G0_charset      (vc_cons[currcons].d->vc_G0_charset)
#define G1_charset      (vc_cons[currcons].d->vc_G1_charset)
#define G1_charset      (vc_cons[currcons].d->vc_G1_charset)
#define saved_G0        (vc_cons[currcons].d->vc_saved_G0)
#define saved_G0        (vc_cons[currcons].d->vc_saved_G0)
#define saved_G1        (vc_cons[currcons].d->vc_saved_G1)
#define saved_G1        (vc_cons[currcons].d->vc_saved_G1)
#define utf             (vc_cons[currcons].d->vc_utf)
#define utf             (vc_cons[currcons].d->vc_utf)
#define utf_count       (vc_cons[currcons].d->vc_utf_count)
#define utf_count       (vc_cons[currcons].d->vc_utf_count)
#define utf_char        (vc_cons[currcons].d->vc_utf_char)
#define utf_char        (vc_cons[currcons].d->vc_utf_char)
#define video_mem_start (vc_cons[currcons].d->vc_video_mem_start)
#define video_mem_start (vc_cons[currcons].d->vc_video_mem_start)
#define video_mem_end   (vc_cons[currcons].d->vc_video_mem_end)
#define video_mem_end   (vc_cons[currcons].d->vc_video_mem_end)
#define video_erase_char (vc_cons[currcons].d->vc_video_erase_char)     
#define video_erase_char (vc_cons[currcons].d->vc_video_erase_char)     
#define disp_ctrl       (vc_cons[currcons].d->vc_disp_ctrl)
#define disp_ctrl       (vc_cons[currcons].d->vc_disp_ctrl)
#define toggle_meta     (vc_cons[currcons].d->vc_toggle_meta)
#define toggle_meta     (vc_cons[currcons].d->vc_toggle_meta)
#define decscnm         (vc_cons[currcons].d->vc_decscnm)
#define decscnm         (vc_cons[currcons].d->vc_decscnm)
#define decom           (vc_cons[currcons].d->vc_decom)
#define decom           (vc_cons[currcons].d->vc_decom)
#define decawm          (vc_cons[currcons].d->vc_decawm)
#define decawm          (vc_cons[currcons].d->vc_decawm)
#define deccm           (vc_cons[currcons].d->vc_deccm)
#define deccm           (vc_cons[currcons].d->vc_deccm)
#define decim           (vc_cons[currcons].d->vc_decim)
#define decim           (vc_cons[currcons].d->vc_decim)
#define deccolm         (vc_cons[currcons].d->vc_deccolm)
#define deccolm         (vc_cons[currcons].d->vc_deccolm)
#define need_wrap       (vc_cons[currcons].d->vc_need_wrap)
#define need_wrap       (vc_cons[currcons].d->vc_need_wrap)
#define has_scrolled    (vc_cons[currcons].d->vc_has_scrolled)
#define has_scrolled    (vc_cons[currcons].d->vc_has_scrolled)
#define kmalloced       (vc_cons[currcons].d->vc_kmalloced)
#define kmalloced       (vc_cons[currcons].d->vc_kmalloced)
#define report_mouse    (vc_cons[currcons].d->vc_report_mouse)
#define report_mouse    (vc_cons[currcons].d->vc_report_mouse)
#define can_do_color    (vc_cons[currcons].d->vc_can_do_color)
#define can_do_color    (vc_cons[currcons].d->vc_can_do_color)
#define color           (vc_cons[currcons].d->vc_color)
#define color           (vc_cons[currcons].d->vc_color)
#define s_color         (vc_cons[currcons].d->vc_s_color)
#define s_color         (vc_cons[currcons].d->vc_s_color)
#define def_color       (vc_cons[currcons].d->vc_def_color)
#define def_color       (vc_cons[currcons].d->vc_def_color)
#define foreground      (color & 0x0f)
#define foreground      (color & 0x0f)
#define background      (color & 0xf0)
#define background      (color & 0xf0)
#define charset         (vc_cons[currcons].d->vc_charset)
#define charset         (vc_cons[currcons].d->vc_charset)
#define s_charset       (vc_cons[currcons].d->vc_s_charset)
#define s_charset       (vc_cons[currcons].d->vc_s_charset)
#define intensity       (vc_cons[currcons].d->vc_intensity)
#define intensity       (vc_cons[currcons].d->vc_intensity)
#define underline       (vc_cons[currcons].d->vc_underline)
#define underline       (vc_cons[currcons].d->vc_underline)
#define blink           (vc_cons[currcons].d->vc_blink)
#define blink           (vc_cons[currcons].d->vc_blink)
#define reverse         (vc_cons[currcons].d->vc_reverse)
#define reverse         (vc_cons[currcons].d->vc_reverse)
#define s_intensity     (vc_cons[currcons].d->vc_s_intensity)
#define s_intensity     (vc_cons[currcons].d->vc_s_intensity)
#define s_underline     (vc_cons[currcons].d->vc_s_underline)
#define s_underline     (vc_cons[currcons].d->vc_s_underline)
#define s_blink         (vc_cons[currcons].d->vc_s_blink)
#define s_blink         (vc_cons[currcons].d->vc_s_blink)
#define s_reverse       (vc_cons[currcons].d->vc_s_reverse)
#define s_reverse       (vc_cons[currcons].d->vc_s_reverse)
#define ulcolor         (vc_cons[currcons].d->vc_ulcolor)
#define ulcolor         (vc_cons[currcons].d->vc_ulcolor)
#define halfcolor       (vc_cons[currcons].d->vc_halfcolor)
#define halfcolor       (vc_cons[currcons].d->vc_halfcolor)
#define tab_stop        (vc_cons[currcons].d->vc_tab_stop)
#define tab_stop        (vc_cons[currcons].d->vc_tab_stop)
#define bell_pitch      (vc_cons[currcons].d->vc_bell_pitch)
#define bell_pitch      (vc_cons[currcons].d->vc_bell_pitch)
#define bell_duration   (vc_cons[currcons].d->vc_bell_duration)
#define bell_duration   (vc_cons[currcons].d->vc_bell_duration)
#define sw              (vc_cons[currcons].d->vc_sw)
#define sw              (vc_cons[currcons].d->vc_sw)
 
 
#define vcmode          (vt_cons[currcons]->vc_mode)
#define vcmode          (vt_cons[currcons]->vc_mode)
#if 0 /* XXX */
#if 0 /* XXX */
#define vtmode          (vt_cons[currcons]->vt_mode)
#define vtmode          (vt_cons[currcons]->vt_mode)
#define vtpid           (vt_cons[currcons]->vt_pid)
#define vtpid           (vt_cons[currcons]->vt_pid)
#define vtnewvt         (vt_cons[currcons]->vt_newvt)
#define vtnewvt         (vt_cons[currcons]->vt_newvt)
#endif
#endif
 
 
#define structsize      (sizeof(struct vc_data) + sizeof(struct vt_struct))
#define structsize      (sizeof(struct vc_data) + sizeof(struct vt_struct))
 
 
int vc_cons_allocated(unsigned int i)
int vc_cons_allocated(unsigned int i)
{
{
        return (i < MAX_NR_CONSOLES && vc_cons[i].d);
        return (i < MAX_NR_CONSOLES && vc_cons[i].d);
}
}
 
 
int vc_allocate(unsigned int currcons)          /* return 0 on success */
int vc_allocate(unsigned int currcons)          /* return 0 on success */
{
{
        if (currcons >= MAX_NR_CONSOLES)
        if (currcons >= MAX_NR_CONSOLES)
          return -ENODEV;
          return -ENODEV;
        if (!vc_cons[currcons].d) {
        if (!vc_cons[currcons].d) {
            long p, q;
            long p, q;
 
 
            /* prevent users from taking too much memory */
            /* prevent users from taking too much memory */
            if (currcons >= MAX_NR_USER_CONSOLES && !suser())
            if (currcons >= MAX_NR_USER_CONSOLES && !suser())
              return -EPERM;
              return -EPERM;
 
 
            /* due to the granularity of kmalloc, we waste some memory here */
            /* due to the granularity of kmalloc, we waste some memory here */
            /* the alloc is done in two steps, to optimize the common situation
            /* the alloc is done in two steps, to optimize the common situation
               of a 25x80 console (structsize=216, screenbuf_size=4000) */
               of a 25x80 console (structsize=216, screenbuf_size=4000) */
            p = (long) kmalloc(structsize, GFP_KERNEL);
            p = (long) kmalloc(structsize, GFP_KERNEL);
            if (!p)
            if (!p)
                return -ENOMEM;
                return -ENOMEM;
            vc_cons[currcons].d = (struct vc_data *) p;
            vc_cons[currcons].d = (struct vc_data *) p;
            vt_cons[currcons] = (struct vt_struct *)(p+sizeof(struct vc_data));
            vt_cons[currcons] = (struct vt_struct *)(p+sizeof(struct vc_data));
 
 
            /* ++Geert: sw->con_init determines console size */
            /* ++Geert: sw->con_init determines console size */
            sw = conswitchp;
            sw = conswitchp;
            cons_num = currcons;
            cons_num = currcons;
            sw->con_init (vc_cons[currcons].d);
            sw->con_init (vc_cons[currcons].d);
            size_row = cols<<1;
            size_row = cols<<1;
            screenbuf_size = rows*size_row;
            screenbuf_size = rows*size_row;
 
 
            q = (long) kmalloc(screenbuf_size, GFP_KERNEL);
            q = (long) kmalloc(screenbuf_size, GFP_KERNEL);
            if (!q) {
            if (!q) {
                kfree_s((char *) p, structsize);
                kfree_s((char *) p, structsize);
                vc_cons[currcons].d = NULL;
                vc_cons[currcons].d = NULL;
                return -ENOMEM;
                return -ENOMEM;
            }
            }
            vc_scrbuf[currcons] = (unsigned short *) q;
            vc_scrbuf[currcons] = (unsigned short *) q;
            kmalloced = 1;
            kmalloced = 1;
            vc_init (currcons, 1);
            vc_init (currcons, 1);
        }
        }
        return 0;
        return 0;
}
}
 
 
/*
/*
 * Change # of rows and columns (0 means the size of fg_console)
 * Change # of rows and columns (0 means the size of fg_console)
 * [this is to be used together with some user program
 * [this is to be used together with some user program
 * like resize that changes the hardware videomode]
 * like resize that changes the hardware videomode]
 */
 */
int vc_resize(unsigned long lines, unsigned long columns)
int vc_resize(unsigned long lines, unsigned long columns)
{
{
        unsigned long cc, ll, ss, sr;
        unsigned long cc, ll, ss, sr;
        unsigned long occ, oll, oss, osr;
        unsigned long occ, oll, oss, osr;
        unsigned short *p;
        unsigned short *p;
        unsigned int currcons = fg_console, i;
        unsigned int currcons = fg_console, i;
        unsigned short *newscreens[MAX_NR_CONSOLES];
        unsigned short *newscreens[MAX_NR_CONSOLES];
        long ol, nl, rlth, rrem;
        long ol, nl, rlth, rrem;
 
 
        cc = (columns ? columns : cols);
        cc = (columns ? columns : cols);
        ll = (lines ? lines : rows);
        ll = (lines ? lines : rows);
        sr = cc << 1;
        sr = cc << 1;
        ss = sr * ll;
        ss = sr * ll;
 
 
        /*
        /*
         * Some earlier version had all consoles of potentially
         * Some earlier version had all consoles of potentially
         * different sizes, but that was really messy.
         * different sizes, but that was really messy.
         * So now we only change if there is room for all consoles
         * So now we only change if there is room for all consoles
         * of the same size.
         * of the same size.
         */
         */
        for (currcons = 0; currcons < MAX_NR_CONSOLES; currcons++) {
        for (currcons = 0; currcons < MAX_NR_CONSOLES; currcons++) {
            if (!vc_cons_allocated(currcons))
            if (!vc_cons_allocated(currcons))
              newscreens[currcons] = 0;
              newscreens[currcons] = 0;
            else {
            else {
                p = (unsigned short *) kmalloc(ss, GFP_USER);
                p = (unsigned short *) kmalloc(ss, GFP_USER);
                if (!p) {
                if (!p) {
                    for (i = 0; i< currcons; i++)
                    for (i = 0; i< currcons; i++)
                      if (newscreens[i])
                      if (newscreens[i])
                        kfree_s(newscreens[i], ss);
                        kfree_s(newscreens[i], ss);
                    return -ENOMEM;
                    return -ENOMEM;
                }
                }
                newscreens[currcons] = p;
                newscreens[currcons] = p;
            }
            }
        }
        }
 
 
#if 0 /* XXX */
#if 0 /* XXX */
        get_scrmem(fg_console);
        get_scrmem(fg_console);
#endif
#endif
 
 
        for (currcons = 0; currcons < MAX_NR_CONSOLES; currcons++) {
        for (currcons = 0; currcons < MAX_NR_CONSOLES; currcons++) {
            if (!vc_cons_allocated(currcons))
            if (!vc_cons_allocated(currcons))
              continue;
              continue;
 
 
            oll = rows;
            oll = rows;
            occ = cols;
            occ = cols;
            osr = size_row;
            osr = size_row;
            oss = screenbuf_size;
            oss = screenbuf_size;
 
 
            rows = ll;
            rows = ll;
            cols = cc;
            cols = cc;
            size_row = sr;
            size_row = sr;
            screenbuf_size = ss;
            screenbuf_size = ss;
 
 
            rlth = MIN(osr, sr);
            rlth = MIN(osr, sr);
            rrem = sr - rlth;
            rrem = sr - rlth;
            ol = origin;
            ol = origin;
            nl = (long) newscreens[currcons];
            nl = (long) newscreens[currcons];
            if (ll < oll)
            if (ll < oll)
              ol += (oll - ll) * osr;
              ol += (oll - ll) * osr;
 
 
            update_attr(currcons);
            update_attr(currcons);
            while (ol < scr_end) {
            while (ol < scr_end) {
                /* ++Geert: TODO: Because the attributes have different meanings
                /* ++Geert: TODO: Because the attributes have different meanings
                   on monochrome and color, they should really be converted if
                   on monochrome and color, they should really be converted if
                   can_do_color changes... */
                   can_do_color changes... */
                memcpyw((unsigned short *) nl, (unsigned short *) ol, rlth);
                memcpyw((unsigned short *) nl, (unsigned short *) ol, rlth);
                if (rrem)
                if (rrem)
                  memsetw((void *)(nl + rlth), video_erase_char, rrem);
                  memsetw((void *)(nl + rlth), video_erase_char, rrem);
                ol += osr;
                ol += osr;
                nl += sr;
                nl += sr;
            }
            }
 
 
            if (kmalloced)
            if (kmalloced)
              kfree_s(vc_scrbuf[currcons], oss);
              kfree_s(vc_scrbuf[currcons], oss);
            vc_scrbuf[currcons] = newscreens[currcons];
            vc_scrbuf[currcons] = newscreens[currcons];
            kmalloced = 1;
            kmalloced = 1;
            screenbuf_size = ss;
            screenbuf_size = ss;
 
 
            origin = (long) video_mem_start = vc_scrbuf[currcons];
            origin = (long) video_mem_start = vc_scrbuf[currcons];
            scr_end = video_mem_end = ((long) video_mem_start) + ss;
            scr_end = video_mem_end = ((long) video_mem_start) + ss;
 
 
            if (scr_end > nl)
            if (scr_end > nl)
              memsetw((void *) nl, video_erase_char, scr_end - nl);
              memsetw((void *) nl, video_erase_char, scr_end - nl);
 
 
            /* do part of a reset_terminal() */
            /* do part of a reset_terminal() */
            top = 0;
            top = 0;
            bottom = rows;
            bottom = rows;
            gotoxy(currcons, x, y);
            gotoxy(currcons, x, y);
            save_cur(currcons);
            save_cur(currcons);
        }
        }
 
 
#if 0 /* XXX */
#if 0 /* XXX */
        set_scrmem(fg_console, 0);
        set_scrmem(fg_console, 0);
        set_origin(fg_console);
        set_origin(fg_console);
#endif /* XXX */
#endif /* XXX */
        update_screen(fg_console);
        update_screen(fg_console);
        set_cursor(fg_console);
        set_cursor(fg_console);
 
 
        return 0;
        return 0;
}
}
 
 
/*
/*
 * ++Geert: Change # of rows and columns for one specific console.
 * ++Geert: Change # of rows and columns for one specific console.
 * Of course it's not messy to have all consoles of potentially different sizes,
 * Of course it's not messy to have all consoles of potentially different sizes,
 * except on PCish hardware :-)
 * except on PCish hardware :-)
 *
 *
 * This is called by the low level console driver (arch/m68k/console/fbcon.c or
 * This is called by the low level console driver (arch/m68k/console/fbcon.c or
 * arch/m68k/console/txtcon.c)
 * arch/m68k/console/txtcon.c)
 */
 */
void vc_resize_con(unsigned long lines, unsigned long columns,
void vc_resize_con(unsigned long lines, unsigned long columns,
                   unsigned int currcons)
                   unsigned int currcons)
{
{
        unsigned long cc, ll, ss, sr;
        unsigned long cc, ll, ss, sr;
        unsigned long occ, oll, oss, osr;
        unsigned long occ, oll, oss, osr;
        unsigned short *newscreen;
        unsigned short *newscreen;
        long ol, nl, rlth, rrem;
        long ol, nl, rlth, rrem;
        struct winsize ws;
        struct winsize ws;
 
 
        if (!columns || !lines || currcons >= MAX_NR_CONSOLES)
        if (!columns || !lines || currcons >= MAX_NR_CONSOLES)
            return;
            return;
 
 
        cc = columns;
        cc = columns;
        ll = lines;
        ll = lines;
        sr = cc << 1;
        sr = cc << 1;
        ss = sr * ll;
        ss = sr * ll;
 
 
        if (!vc_cons_allocated(currcons))
        if (!vc_cons_allocated(currcons))
            newscreen = 0;
            newscreen = 0;
        else if (!(newscreen = (unsigned short *) kmalloc(ss, GFP_USER)))
        else if (!(newscreen = (unsigned short *) kmalloc(ss, GFP_USER)))
            return;
            return;
 
 
        if (vc_cons_allocated(currcons)) {
        if (vc_cons_allocated(currcons)) {
            oll = rows;
            oll = rows;
            occ = cols;
            occ = cols;
            osr = size_row;
            osr = size_row;
            oss = screenbuf_size;
            oss = screenbuf_size;
 
 
            rows = ll;
            rows = ll;
            cols = cc;
            cols = cc;
            size_row = sr;
            size_row = sr;
            screenbuf_size = ss;
            screenbuf_size = ss;
 
 
            rlth = MIN(osr, sr);
            rlth = MIN(osr, sr);
            rrem = sr - rlth;
            rrem = sr - rlth;
            ol = origin;
            ol = origin;
            nl = (long) newscreen;
            nl = (long) newscreen;
            if (ll < oll)
            if (ll < oll)
              ol += (oll - ll) * osr;
              ol += (oll - ll) * osr;
 
 
            update_attr(currcons);
            update_attr(currcons);
            while (ol < scr_end) {
            while (ol < scr_end) {
                /* ++Geert: TODO: Because the attributes have different meanings
                /* ++Geert: TODO: Because the attributes have different meanings
                   on monochrome and color, they should really be converted if
                   on monochrome and color, they should really be converted if
                   can_do_color changes... */
                   can_do_color changes... */
                memcpyw((unsigned short *) nl, (unsigned short *) ol, rlth);
                memcpyw((unsigned short *) nl, (unsigned short *) ol, rlth);
                if (rrem)
                if (rrem)
                  memsetw((void *)(nl + rlth), video_erase_char, rrem);
                  memsetw((void *)(nl + rlth), video_erase_char, rrem);
                ol += osr;
                ol += osr;
                nl += sr;
                nl += sr;
            }
            }
 
 
            if (kmalloced)
            if (kmalloced)
              kfree_s(vc_scrbuf[currcons], oss);
              kfree_s(vc_scrbuf[currcons], oss);
            vc_scrbuf[currcons] = newscreen;
            vc_scrbuf[currcons] = newscreen;
            kmalloced = 1;
            kmalloced = 1;
            screenbuf_size = ss;
            screenbuf_size = ss;
 
 
            origin = (long) video_mem_start = vc_scrbuf[currcons];
            origin = (long) video_mem_start = vc_scrbuf[currcons];
            scr_end = video_mem_end = ((long)video_mem_start) + ss;
            scr_end = video_mem_end = ((long)video_mem_start) + ss;
 
 
            if (scr_end > nl)
            if (scr_end > nl)
              memsetw((void *) nl, video_erase_char, scr_end - nl);
              memsetw((void *) nl, video_erase_char, scr_end - nl);
 
 
            /* do part of a reset_terminal() */
            /* do part of a reset_terminal() */
            top = 0;
            top = 0;
            bottom = rows;
            bottom = rows;
            gotoxy(currcons, x, y);
            gotoxy(currcons, x, y);
            save_cur(currcons);
            save_cur(currcons);
 
 
            ws.ws_row = rows;
            ws.ws_row = rows;
            ws.ws_col = cols;
            ws.ws_col = cols;
            if (memcmp(&ws, &console_table[currcons]->winsize, sizeof (struct winsize)) &&
            if (memcmp(&ws, &console_table[currcons]->winsize, sizeof (struct winsize)) &&
                console_table[currcons]->pgrp > 0)
                console_table[currcons]->pgrp > 0)
                kill_pg(console_table[currcons]->pgrp, SIGWINCH, 1);
                kill_pg(console_table[currcons]->pgrp, SIGWINCH, 1);
            console_table[currcons]->winsize = ws;
            console_table[currcons]->winsize = ws;
        }
        }
 
 
   if (currcons == fg_console)
   if (currcons == fg_console)
      update_screen(fg_console);
      update_screen(fg_console);
}
}
 
 
void vc_disallocate(unsigned int currcons)
void vc_disallocate(unsigned int currcons)
{
{
        if (vc_cons_allocated(currcons)) {
        if (vc_cons_allocated(currcons)) {
            if (kmalloced)
            if (kmalloced)
              kfree_s(vc_scrbuf[currcons], screenbuf_size);
              kfree_s(vc_scrbuf[currcons], screenbuf_size);
            if (currcons >= MIN_NR_CONSOLES)
            if (currcons >= MIN_NR_CONSOLES)
              kfree_s(vc_cons[currcons].d, structsize);
              kfree_s(vc_cons[currcons].d, structsize);
            vc_cons[currcons].d = 0;
            vc_cons[currcons].d = 0;
        }
        }
}
}
 
 
 
 
#define set_kbd(x) set_vc_kbd_mode(kbd_table+currcons,x)
#define set_kbd(x) set_vc_kbd_mode(kbd_table+currcons,x)
#define clr_kbd(x) clr_vc_kbd_mode(kbd_table+currcons,x)
#define clr_kbd(x) clr_vc_kbd_mode(kbd_table+currcons,x)
#define is_kbd(x) vc_kbd_mode(kbd_table+currcons,x)
#define is_kbd(x) vc_kbd_mode(kbd_table+currcons,x)
 
 
#define decarm          VC_REPEAT
#define decarm          VC_REPEAT
#define decckm          VC_CKMODE
#define decckm          VC_CKMODE
#define kbdapplic       VC_APPLIC
#define kbdapplic       VC_APPLIC
#define lnm             VC_CRLF
#define lnm             VC_CRLF
 
 
/*
/*
 * this is what the terminal answers to a ESC-Z or csi0c query.
 * this is what the terminal answers to a ESC-Z or csi0c query.
 */
 */
#define VT100ID "\033[?1;2c"
#define VT100ID "\033[?1;2c"
#define VT102ID "\033[?6c"
#define VT102ID "\033[?6c"
 
 
static unsigned char color_table[] = { 0, 4, 2, 6, 1, 5, 3, 7,
static unsigned char color_table[] = { 0, 4, 2, 6, 1, 5, 3, 7,
                                       8,12,10,14, 9,13,11,15 };
                                       8,12,10,14, 9,13,11,15 };
 
 
/*
/*
 * gotoxy() must verify all boundaries, because the arguments
 * gotoxy() must verify all boundaries, because the arguments
 * might also be negative. If the given position is out of
 * might also be negative. If the given position is out of
 * bounds, the cursor is placed at the nearest margin.
 * bounds, the cursor is placed at the nearest margin.
 */
 */
static void gotoxy(int currcons, int new_x, int new_y)
static void gotoxy(int currcons, int new_x, int new_y)
{
{
        int max_y;
        int max_y;
 
 
        if (new_x < 0)
        if (new_x < 0)
                x = 0;
                x = 0;
        else
        else
                if (new_x >= cols)
                if (new_x >= cols)
                        x = cols - 1;
                        x = cols - 1;
                else
                else
                        x = new_x;
                        x = new_x;
        if (decom) {
        if (decom) {
                new_y += top;
                new_y += top;
                max_y = bottom;
                max_y = bottom;
        } else
        } else
                max_y = rows;
                max_y = rows;
        if (new_y < 0)
        if (new_y < 0)
                y = 0;
                y = 0;
        else
        else
                if (new_y >= max_y)
                if (new_y >= max_y)
                        y = max_y - 1;
                        y = max_y - 1;
                else
                else
                        y = new_y;
                        y = new_y;
        pos = video_mem_start + y * cols + x;
        pos = video_mem_start + y * cols + x;
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
static void hide_cursor(int currcons)
static void hide_cursor(int currcons)
{
{
        sw->con_cursor(vc_cons[currcons].d,CM_ERASE);
        sw->con_cursor(vc_cons[currcons].d,CM_ERASE);
        return;
        return;
}
}
 
 
static void set_cursor(int currcons)
static void set_cursor(int currcons)
{
{
        if (currcons != fg_console || console_blanked || vcmode == KD_GRAPHICS)
        if (currcons != fg_console || console_blanked || vcmode == KD_GRAPHICS)
                return;
                return;
        if (deccm)
        if (deccm)
                sw->con_cursor(vc_cons[currcons].d,CM_DRAW);
                sw->con_cursor(vc_cons[currcons].d,CM_DRAW);
        else
        else
                hide_cursor(currcons);
                hide_cursor(currcons);
        return;
        return;
}
}
 
 
void no_scroll(char *str, int *ints)
void no_scroll(char *str, int *ints)
{
{
  /*
  /*
   * no_scroll currently does nothing on the m68k.
   * no_scroll currently does nothing on the m68k.
   */
   */
}
}
 
 
/*
/*
 * Arno:
 * Arno:
 * Why do we need these? The keyboard code doesn't seem to do anything
 * Why do we need these? The keyboard code doesn't seem to do anything
 * with them either...
 * with them either...
 */
 */
void scrollfront(int l)
void scrollfront(int l)
{
{
        return;
        return;
}
}
 
 
void scrollback(int l)
void scrollback(int l)
{
{
        return;
        return;
}
}
 
 
static void scrup(int currcons, unsigned int t, unsigned int b,
static void scrup(int currcons, unsigned int t, unsigned int b,
                  int nr)
                  int nr)
{
{
        unsigned short *p;
        unsigned short *p;
        int i;
        int i;
 
 
        if (b > rows || t >= b)
        if (b > rows || t >= b)
                return;
                return;
 
 
        memmove (video_mem_start + t * cols,
        memmove (video_mem_start + t * cols,
                 video_mem_start + (t + nr) * cols,
                 video_mem_start + (t + nr) * cols,
                 (b - t - nr) * cols * 2);
                 (b - t - nr) * cols * 2);
 
 
        p = video_mem_start + (b - nr) * cols;
        p = video_mem_start + (b - nr) * cols;
        for (i = nr * cols; i > 0; i--)
        for (i = nr * cols; i > 0; i--)
          *p++ = video_erase_char;
          *p++ = video_erase_char;
 
 
        if (currcons != fg_console)
        if (currcons != fg_console)
          return;
          return;
/*
/*
 * Arno:
 * Arno:
 * Scrolling has now been moved to amicon.c where it should have
 * Scrolling has now been moved to amicon.c where it should have
 * been all along.
 * been all along.
 */
 */
        sw->con_scroll(vc_cons[currcons].d, t, b, SM_UP, nr);
        sw->con_scroll(vc_cons[currcons].d, t, b, SM_UP, nr);
 
 
        return;
        return;
 
 
}
}
 
 
static void scrdown(int currcons, unsigned int t, unsigned int b,
static void scrdown(int currcons, unsigned int t, unsigned int b,
                    int nr)
                    int nr)
{
{
        unsigned short *p;
        unsigned short *p;
        int i;
        int i;
 
 
        if (b > rows || t >= b)
        if (b > rows || t >= b)
                return;
                return;
 
 
        memmove (video_mem_start + (t + nr) * cols,
        memmove (video_mem_start + (t + nr) * cols,
                 video_mem_start + t * cols,
                 video_mem_start + t * cols,
                 (b - t - nr) * cols * 2);
                 (b - t - nr) * cols * 2);
 
 
        p = video_mem_start + t * cols;
        p = video_mem_start + t * cols;
        for (i = nr * cols; i > 0; i--)
        for (i = nr * cols; i > 0; i--)
          *p++ = video_erase_char;
          *p++ = video_erase_char;
 
 
        if (currcons != fg_console)
        if (currcons != fg_console)
          return;
          return;
/*
/*
 * Arno:
 * Arno:
 * Scrolling has now been moved to amicon.c where it should have
 * Scrolling has now been moved to amicon.c where it should have
 * been all along.
 * been all along.
 */
 */
        sw->con_scroll(vc_cons[currcons].d, t, b, SM_DOWN, nr);
        sw->con_scroll(vc_cons[currcons].d, t, b, SM_DOWN, nr);
 
 
        return;
        return;
}
}
 
 
static void lf(int currcons)
static void lf(int currcons)
{
{
        /* don't scroll if above bottom of scrolling region, or
        /* don't scroll if above bottom of scrolling region, or
         * if below scrolling region
         * if below scrolling region
         */
         */
        if (y+1 == bottom)
        if (y+1 == bottom)
                scrup(currcons,top,bottom, 1);
                scrup(currcons,top,bottom, 1);
        else if (y < rows-1) {
        else if (y < rows-1) {
                y++;
                y++;
                pos += cols;
                pos += cols;
        }
        }
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
static void ri(int currcons)
static void ri(int currcons)
{
{
        /* don't scroll if below top of scrolling region, or
        /* don't scroll if below top of scrolling region, or
         * if above scrolling region
         * if above scrolling region
         */
         */
        if (y == top)
        if (y == top)
                scrdown(currcons,top,bottom, 1);
                scrdown(currcons,top,bottom, 1);
        else if (y > 0) {
        else if (y > 0) {
                y--;
                y--;
                pos -= cols;
                pos -= cols;
        }
        }
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
static inline void cr(int currcons)
static inline void cr(int currcons)
{
{
        pos -= x;
        pos -= x;
        need_wrap = x = 0;
        need_wrap = x = 0;
}
}
 
 
static inline void bs(int currcons)
static inline void bs(int currcons)
{
{
        if (x) {
        if (x) {
                pos--;
                pos--;
                x--;
                x--;
                need_wrap = 0;
                need_wrap = 0;
        }
        }
}
}
 
 
static inline void del(int currcons)
static inline void del(int currcons)
{
{
        /* ignored */
        /* ignored */
}
}
 
 
static void csi_J(int currcons, int vpar)
static void csi_J(int currcons, int vpar)
{
{
        unsigned long count;
        unsigned long count;
        unsigned short *start;
        unsigned short *start;
 
 
        switch (vpar) {
        switch (vpar) {
                case 0:  /* erase from cursor to end of display */
                case 0:  /* erase from cursor to end of display */
                        count = (video_mem_start
                        count = (video_mem_start
                                 + cols * rows
                                 + cols * rows
                                 - pos);
                                 - pos);
                        start = pos;
                        start = pos;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                          break;
                          break;
                        /* 680x0 do in two stages */
                        /* 680x0 do in two stages */
                        sw->con_clear(vc_cons[currcons].d,y,x,1,cols-x);
                        sw->con_clear(vc_cons[currcons].d,y,x,1,cols-x);
                        sw->con_clear(vc_cons[currcons].d,y+1,0,rows-y-1, cols);
                        sw->con_clear(vc_cons[currcons].d,y+1,0,rows-y-1, cols);
                        break;
                        break;
                case 1: /* erase from start to cursor */
                case 1: /* erase from start to cursor */
                        count = pos - video_mem_start + 1;
                        count = pos - video_mem_start + 1;
                        start = video_mem_start;
                        start = video_mem_start;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                          break;
                          break;
                        /* 680x0 do in two stages */
                        /* 680x0 do in two stages */
                        sw->con_clear(vc_cons[currcons].d,0,0,y, cols);
                        sw->con_clear(vc_cons[currcons].d,0,0,y, cols);
                        sw->con_clear(vc_cons[currcons].d,y,0,1,x + 1);
                        sw->con_clear(vc_cons[currcons].d,y,0,1,x + 1);
                        break;
                        break;
                case 2: /* erase whole display */
                case 2: /* erase whole display */
                        count = cols * rows;
                        count = cols * rows;
                        start = video_mem_start;
                        start = video_mem_start;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                          break;
                          break;
                        sw->con_clear(vc_cons[currcons].d,0,0,rows, cols);
                        sw->con_clear(vc_cons[currcons].d,0,0,rows, cols);
                        break;
                        break;
                default:
                default:
                        return;
                        return;
        }
        }
        while (count-- > 0)
        while (count-- > 0)
          *start++ = video_erase_char;
          *start++ = video_erase_char;
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
static void csi_K(int currcons, int vpar)
static void csi_K(int currcons, int vpar)
{
{
        unsigned long count;
        unsigned long count;
        unsigned short *start;
        unsigned short *start;
 
 
        switch (vpar) {
        switch (vpar) {
                case 0:  /* erase from cursor to end of line */
                case 0:  /* erase from cursor to end of line */
                        count = cols - x;
                        count = cols - x;
                        start = pos;
                        start = pos;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                          break;
                          break;
                        sw->con_clear(vc_cons[currcons].d,y,x,1,cols-x);
                        sw->con_clear(vc_cons[currcons].d,y,x,1,cols-x);
                        break;
                        break;
                case 1: /* erase from start of line to cursor */
                case 1: /* erase from start of line to cursor */
                        start = pos - x;
                        start = pos - x;
                        count = x + 1;
                        count = x + 1;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                          break;
                          break;
                        sw->con_clear(vc_cons[currcons].d,y,0,1,x + 1);
                        sw->con_clear(vc_cons[currcons].d,y,0,1,x + 1);
                        break;
                        break;
                case 2: /* erase whole line */
                case 2: /* erase whole line */
                        start = pos - x;
                        start = pos - x;
                        count = cols;
                        count = cols;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                          break;
                          break;
                        sw->con_clear(vc_cons[currcons].d,y,0,1,cols);
                        sw->con_clear(vc_cons[currcons].d,y,0,1,cols);
                        break;
                        break;
                default:
                default:
                        return;
                        return;
        }
        }
        while (count-- > 0)
        while (count-- > 0)
          *start++ = video_erase_char;
          *start++ = video_erase_char;
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
static void csi_X(int currcons, int vpar) /* erase the following vpar positions */
static void csi_X(int currcons, int vpar) /* erase the following vpar positions */
{                                         /* not vt100? */
{                                         /* not vt100? */
        unsigned long count;
        unsigned long count;
        unsigned short * start;
        unsigned short * start;
 
 
        if (!vpar)
        if (!vpar)
                vpar++;
                vpar++;
 
 
        start=pos;
        start=pos;
        count=(vpar > cols-x) ? (cols-x) : vpar;
        count=(vpar > cols-x) ? (cols-x) : vpar;
 
 
        if (currcons == fg_console)
        if (currcons == fg_console)
                sw->con_clear(vc_cons[currcons].d,y,x,1,count);
                sw->con_clear(vc_cons[currcons].d,y,x,1,count);
 
 
        while (count-- > 0)
        while (count-- > 0)
                *start++ = video_erase_char;
                *start++ = video_erase_char;
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
/*
/*
 * Arno:
 * Arno:
 * On 680x0 attributes are currently not used. This piece of code
 * On 680x0 attributes are currently not used. This piece of code
 * seems hardware independent, but uses the EGA/VGA way of representing
 * seems hardware independent, but uses the EGA/VGA way of representing
 * attributes.
 * attributes.
 * TODO: modify for 680x0 and add attribute processing to putc code.
 * TODO: modify for 680x0 and add attribute processing to putc code.
 *
 *
 * ++roman: I completely changed the attribute format for monochrome
 * ++roman: I completely changed the attribute format for monochrome
 * mode (!can_do_color). The formerly used MDA (monochrome display
 * mode (!can_do_color). The formerly used MDA (monochrome display
 * adapter) format didn't allow the combination of certain effects.
 * adapter) format didn't allow the combination of certain effects.
 * Now the attribute is just a bit vector:
 * Now the attribute is just a bit vector:
 *  Bit 0..1: intensity (0..2)
 *  Bit 0..1: intensity (0..2)
 *  Bit 2   : underline
 *  Bit 2   : underline
 *  Bit 3   : reverse
 *  Bit 3   : reverse
 *  Bit 7   : blink
 *  Bit 7   : blink
 */
 */
static void update_attr(int currcons)
static void update_attr(int currcons)
{
{
        if (!can_do_color) {
        if (!can_do_color) {
                /* Special treatment for monochrome */
                /* Special treatment for monochrome */
                attr = intensity |
                attr = intensity |
                        (underline ? 4 : 0) |
                        (underline ? 4 : 0) |
                        ((reverse ^ decscnm) ? 8 : 0) |
                        ((reverse ^ decscnm) ? 8 : 0) |
                        (blink ? 0x80 : 0);
                        (blink ? 0x80 : 0);
                video_erase_char = ' ' | ((reverse ^ decscnm) ? 0x800 : 0);
                video_erase_char = ' ' | ((reverse ^ decscnm) ? 0x800 : 0);
                return;
                return;
        }
        }
 
 
        attr = color;
        attr = color;
        if (underline)
        if (underline)
                attr = (attr & 0xf0) | ulcolor;
                attr = (attr & 0xf0) | ulcolor;
        else if (intensity == 0)
        else if (intensity == 0)
                attr = (attr & 0xf0) | halfcolor;
                attr = (attr & 0xf0) | halfcolor;
        if (reverse ^ decscnm)
        if (reverse ^ decscnm)
                attr = reverse_video_char(attr);
                attr = reverse_video_char(attr);
        if (blink)
        if (blink)
                attr ^= 0x80;
                attr ^= 0x80;
        if (intensity == 2)
        if (intensity == 2)
                attr ^= 0x08;
                attr ^= 0x08;
        if (decscnm)
        if (decscnm)
                video_erase_char = (reverse_video_char(color) << 8) | ' ';
                video_erase_char = (reverse_video_char(color) << 8) | ' ';
        else
        else
                video_erase_char = (color << 8) | ' ';
                video_erase_char = (color << 8) | ' ';
}
}
 
 
static void default_attr(int currcons)
static void default_attr(int currcons)
{
{
        intensity = 1;
        intensity = 1;
        underline = 0;
        underline = 0;
        reverse = 0;
        reverse = 0;
        blink = 0;
        blink = 0;
        color = def_color;
        color = def_color;
}
}
 
 
static void csi_m(int currcons)
static void csi_m(int currcons)
{
{
        int i;
        int i;
 
 
        for (i=0;i<=npar;i++)
        for (i=0;i<=npar;i++)
                switch (par[i]) {
                switch (par[i]) {
                        case 0:  /* all attributes off */
                        case 0:  /* all attributes off */
                                default_attr(currcons);
                                default_attr(currcons);
                                break;
                                break;
                        case 1:
                        case 1:
                                intensity = 2;
                                intensity = 2;
                                break;
                                break;
                        case 2:
                        case 2:
                                intensity = 0;
                                intensity = 0;
                                break;
                                break;
                        case 4:
                        case 4:
                                underline = 1;
                                underline = 1;
                                break;
                                break;
                        case 5:
                        case 5:
                                blink = 1;
                                blink = 1;
                                break;
                                break;
                        case 7:
                        case 7:
                                reverse = 1;
                                reverse = 1;
                                break;
                                break;
                        case 10: /* ANSI X3.64-1979 (SCO-ish?)
                        case 10: /* ANSI X3.64-1979 (SCO-ish?)
                                  * Select primary font, don't display
                                  * Select primary font, don't display
                                  * control chars if defined, don't set
                                  * control chars if defined, don't set
                                  * bit 8 on output.
                                  * bit 8 on output.
                                  */
                                  */
                                translate = set_translate(charset == 0
                                translate = set_translate(charset == 0
                                                ? G0_charset
                                                ? G0_charset
                                                : G1_charset);
                                                : G1_charset);
                                disp_ctrl = 0;
                                disp_ctrl = 0;
                                toggle_meta = 0;
                                toggle_meta = 0;
                                break;
                                break;
                        case 11: /* ANSI X3.64-1979 (SCO-ish?)
                        case 11: /* ANSI X3.64-1979 (SCO-ish?)
                                  * Select first alternate font, let's
                                  * Select first alternate font, let's
                                  * chars < 32 be displayed as ROM chars.
                                  * chars < 32 be displayed as ROM chars.
                                  */
                                  */
                                translate = set_translate(IBMPC_MAP);
                                translate = set_translate(IBMPC_MAP);
                                disp_ctrl = 1;
                                disp_ctrl = 1;
                                toggle_meta = 0;
                                toggle_meta = 0;
                                break;
                                break;
                        case 12: /* ANSI X3.64-1979 (SCO-ish?)
                        case 12: /* ANSI X3.64-1979 (SCO-ish?)
                                  * Select second alternate font, toggle
                                  * Select second alternate font, toggle
                                  * high bit before displaying as ROM char.
                                  * high bit before displaying as ROM char.
                                  */
                                  */
                                translate = set_translate(IBMPC_MAP);
                                translate = set_translate(IBMPC_MAP);
                                disp_ctrl = 1;
                                disp_ctrl = 1;
                                toggle_meta = 1;
                                toggle_meta = 1;
                                break;
                                break;
                        case 21:
                        case 21:
                        case 22:
                        case 22:
                                intensity = 1;
                                intensity = 1;
                                break;
                                break;
                        case 24:
                        case 24:
                                underline = 0;
                                underline = 0;
                                break;
                                break;
                        case 25:
                        case 25:
                                blink = 0;
                                blink = 0;
                                break;
                                break;
                        case 27:
                        case 27:
                                reverse = 0;
                                reverse = 0;
                                break;
                                break;
                        case 38: /* ANSI X3.64-1979 (SCO-ish?)
                        case 38: /* ANSI X3.64-1979 (SCO-ish?)
                                  * Enables underscore, white foreground
                                  * Enables underscore, white foreground
                                  * with white underscore (Linux - use
                                  * with white underscore (Linux - use
                                  * default foreground).
                                  * default foreground).
                                  */
                                  */
                                color = (def_color & 0x0f) | background;
                                color = (def_color & 0x0f) | background;
                                underline = 1;
                                underline = 1;
                                break;
                                break;
                        case 39: /* ANSI X3.64-1979 (SCO-ish?)
                        case 39: /* ANSI X3.64-1979 (SCO-ish?)
                                  * Disable underline option.
                                  * Disable underline option.
                                  * Reset colour to default? It did this
                                  * Reset colour to default? It did this
                                  * before...
                                  * before...
                                  */
                                  */
                                color = (def_color & 0x0f) | background;
                                color = (def_color & 0x0f) | background;
                                underline = 0;
                                underline = 0;
                                break;
                                break;
                        case 49:
                        case 49:
                                color = (def_color & 0xf0) | foreground;
                                color = (def_color & 0xf0) | foreground;
                                break;
                                break;
                        default:
                        default:
                                if (par[i] >= 30 && par[i] <= 37)
                                if (par[i] >= 30 && par[i] <= 37)
                                        color = color_table[par[i]-30]
                                        color = color_table[par[i]-30]
                                                | background;
                                                | background;
                                else if (par[i] >= 40 && par[i] <= 47)
                                else if (par[i] >= 40 && par[i] <= 47)
                                        color = (color_table[par[i]-40]<<4)
                                        color = (color_table[par[i]-40]<<4)
                                                | foreground;
                                                | foreground;
                                break;
                                break;
                }
                }
        update_attr(currcons);
        update_attr(currcons);
}
}
 
 
static void respond_string(const char * p, struct tty_struct * tty)
static void respond_string(const char * p, struct tty_struct * tty)
{
{
        while (*p) {
        while (*p) {
                tty_insert_flip_char(tty, *p, 0);
                tty_insert_flip_char(tty, *p, 0);
                p++;
                p++;
        }
        }
        tty_schedule_flip(tty);
        tty_schedule_flip(tty);
}
}
 
 
static void cursor_report(int currcons, struct tty_struct * tty)
static void cursor_report(int currcons, struct tty_struct * tty)
{
{
        char buf[40];
        char buf[40];
 
 
        sprintf(buf, "\033[%ld;%ldR", y + (decom ? top+1 : 1), x+1);
        sprintf(buf, "\033[%ld;%ldR", y + (decom ? top+1 : 1), x+1);
        respond_string(buf, tty);
        respond_string(buf, tty);
}
}
 
 
static inline void status_report(struct tty_struct * tty)
static inline void status_report(struct tty_struct * tty)
{
{
        respond_string("\033[0n", tty); /* Terminal ok */
        respond_string("\033[0n", tty); /* Terminal ok */
}
}
 
 
static inline void respond_ID(struct tty_struct * tty)
static inline void respond_ID(struct tty_struct * tty)
{
{
        respond_string(VT102ID, tty);
        respond_string(VT102ID, tty);
}
}
 
 
void mouse_report(struct tty_struct * tty, int butt, int mrx, int mry)
void mouse_report(struct tty_struct * tty, int butt, int mrx, int mry)
{
{
        char buf[8];
        char buf[8];
 
 
        sprintf(buf, "\033[M%c%c%c", (char)(' ' + butt), (char)('!' + mrx),
        sprintf(buf, "\033[M%c%c%c", (char)(' ' + butt), (char)('!' + mrx),
                (char)('!' + mry));
                (char)('!' + mry));
        respond_string(buf, tty);
        respond_string(buf, tty);
}
}
 
 
/* invoked via ioctl(TIOCLINUX) */
/* invoked via ioctl(TIOCLINUX) */
int mouse_reporting(void)
int mouse_reporting(void)
{
{
        int currcons = fg_console;
        int currcons = fg_console;
 
 
        return report_mouse;
        return report_mouse;
}
}
 
 
static inline unsigned short *screenpos(int currcons, int offset, int viewed)
static inline unsigned short *screenpos(int currcons, int offset, int viewed)
{
{
        unsigned short *p = (unsigned short *)(origin + offset);
        unsigned short *p = (unsigned short *)(origin + offset);
#if 0
#if 0
        if (viewed && currcons == fg_console)
        if (viewed && currcons == fg_console)
                p -= (__real_origin - __origin);
                p -= (__real_origin - __origin);
#endif
#endif
        return p;
        return p;
}
}
 
 
/* Note: inverting the screen twice should revert to the original state */
/* Note: inverting the screen twice should revert to the original state */
void invert_screen(int currcons, int offset, int count, int viewed)
void invert_screen(int currcons, int offset, int count, int viewed)
{
{
        unsigned short *p;
        unsigned short *p;
        unsigned short xx, yy, oldattr;
        unsigned short xx, yy, oldattr;
 
 
        count /= 2;
        count /= 2;
        p = screenpos(currcons, offset, viewed);
        p = screenpos(currcons, offset, viewed);
        xx = (offset >> 1) % cols;
        xx = (offset >> 1) % cols;
        yy = (offset >> 1) / cols;
        yy = (offset >> 1) / cols;
        oldattr = attr;
        oldattr = attr;
        if (can_do_color)
        if (can_do_color)
                while (count--) {
                while (count--) {
                        unsigned short old = scr_readw(p);
                        unsigned short old = scr_readw(p);
                        unsigned short new = reverse_video_short(old);
                        unsigned short new = reverse_video_short(old);
                        scr_writew(new, p);
                        scr_writew(new, p);
                        p++;
                        p++;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                                continue;
                                continue;
                        attr = new >> 8;
                        attr = new >> 8;
                        sw->con_putc(vc_cons[currcons].d, new & 0xff, yy, xx);
                        sw->con_putc(vc_cons[currcons].d, new & 0xff, yy, xx);
                        if (++xx == cols)
                        if (++xx == cols)
                                xx = 0, ++yy;
                                xx = 0, ++yy;
                }
                }
        else
        else
                while (count--) {
                while (count--) {
                        unsigned short old = scr_readw(p);
                        unsigned short old = scr_readw(p);
                        unsigned short new = old ^ 0x800;
                        unsigned short new = old ^ 0x800;
                        scr_writew(new, p);
                        scr_writew(new, p);
                        p++;
                        p++;
                        if (currcons != fg_console)
                        if (currcons != fg_console)
                                continue;
                                continue;
                        attr = new >> 8;
                        attr = new >> 8;
                        sw->con_putc(vc_cons[currcons].d, new & 0xff, yy, xx);
                        sw->con_putc(vc_cons[currcons].d, new & 0xff, yy, xx);
                        if (++xx == cols)
                        if (++xx == cols)
                                xx = 0, ++yy;
                                xx = 0, ++yy;
                }
                }
        attr = oldattr;
        attr = oldattr;
}
}
 
 
/* used by selection: complement pointer position */
/* used by selection: complement pointer position */
void complement_pos(int currcons, int offset)
void complement_pos(int currcons, int offset)
{
{
        static unsigned short *p = NULL;
        static unsigned short *p = NULL;
        static unsigned short old = 0;
        static unsigned short old = 0;
        static unsigned short oldx = 0, oldy = 0;
        static unsigned short oldx = 0, oldy = 0;
        unsigned short new, oldattr;
        unsigned short new, oldattr;
 
 
        oldattr = attr;
        oldattr = attr;
        if (p) {
        if (p) {
                scr_writew(old, p);
                scr_writew(old, p);
                if (currcons == fg_console) {
                if (currcons == fg_console) {
                        attr = old >> 8;
                        attr = old >> 8;
                        sw->con_putc(vc_cons[currcons].d, old & 0xff, oldy, oldx);
                        sw->con_putc(vc_cons[currcons].d, old & 0xff, oldy, oldx);
                        attr = oldattr;
                        attr = oldattr;
                }
                }
        }
        }
        if (offset == -1)
        if (offset == -1)
                p = NULL;
                p = NULL;
        else {
        else {
                p = screenpos(currcons, offset, 1);
                p = screenpos(currcons, offset, 1);
                old = scr_readw(p);
                old = scr_readw(p);
                oldx = (offset >> 1) % cols;
                oldx = (offset >> 1) % cols;
                oldy = (offset >> 1) / cols;
                oldy = (offset >> 1) / cols;
                if (can_do_color)
                if (can_do_color)
                        new = old ^ 0x7700;
                        new = old ^ 0x7700;
                else
                else
                        new = old ^ 0x800;
                        new = old ^ 0x800;
                scr_writew(new, p);
                scr_writew(new, p);
                if (currcons == fg_console) {
                if (currcons == fg_console) {
                        attr = new >> 8;
                        attr = new >> 8;
                        sw->con_putc(vc_cons[currcons].d, new & 0xff, oldy, oldx);
                        sw->con_putc(vc_cons[currcons].d, new & 0xff, oldy, oldx);
                        attr = oldattr;
                        attr = oldattr;
                }
                }
        }
        }
}
}
 
 
/* used by selection */
/* used by selection */
unsigned short screen_word(int currcons, int offset, int viewed)
unsigned short screen_word(int currcons, int offset, int viewed)
{
{
        return scr_readw(screenpos(currcons, offset, viewed));
        return scr_readw(screenpos(currcons, offset, viewed));
}
}
 
 
/* used by selection - convert a screen word to a glyph number */
/* used by selection - convert a screen word to a glyph number */
int scrw2glyph(unsigned short scr_word)
int scrw2glyph(unsigned short scr_word)
{
{
        return ( video_mode_512ch )
        return ( video_mode_512ch )
                ? ((scr_word & 0x0800) >> 3) + (scr_word & 0x00ff)
                ? ((scr_word & 0x0800) >> 3) + (scr_word & 0x00ff)
                : scr_word & 0x00ff;
                : scr_word & 0x00ff;
}
}
 
 
/* used by vcs - note the word offset */
/* used by vcs - note the word offset */
unsigned short *screen_pos(int currcons, int w_offset, int viewed)
unsigned short *screen_pos(int currcons, int w_offset, int viewed)
{
{
        return screenpos(currcons, 2 * w_offset, viewed);
        return screenpos(currcons, 2 * w_offset, viewed);
}
}
 
 
void getconsxy(int currcons, char *p)
void getconsxy(int currcons, char *p)
{
{
        p[0] = x;
        p[0] = x;
        p[1] = y;
        p[1] = y;
}
}
 
 
void putconsxy(int currcons, char *p)
void putconsxy(int currcons, char *p)
{
{
        gotoxy(currcons, p[0], p[1]);
        gotoxy(currcons, p[0], p[1]);
        set_cursor(currcons);
        set_cursor(currcons);
}
}
 
 
static void set_mode(int currcons, int on_off)
static void set_mode(int currcons, int on_off)
{
{
        int i;
        int i;
 
 
        for (i=0; i<=npar; i++)
        for (i=0; i<=npar; i++)
                if (ques) switch(par[i]) {      /* DEC private modes set/reset */
                if (ques) switch(par[i]) {      /* DEC private modes set/reset */
                        case 1:                 /* Cursor keys send ^[Ox/^[[x */
                        case 1:                 /* Cursor keys send ^[Ox/^[[x */
                                if (on_off)
                                if (on_off)
                                        set_kbd(decckm);
                                        set_kbd(decckm);
                                else
                                else
                                        clr_kbd(decckm);
                                        clr_kbd(decckm);
                                break;
                                break;
                        case 3: /* 80/132 mode switch unimplemented */
                        case 3: /* 80/132 mode switch unimplemented */
                                deccolm = on_off;
                                deccolm = on_off;
#if 0
#if 0
                                (void) vc_resize(rows, deccolm ? 132 : 80);
                                (void) vc_resize(rows, deccolm ? 132 : 80);
                                /* this alone does not suffice; some user mode
                                /* this alone does not suffice; some user mode
                                   utility has to change the hardware regs */
                                   utility has to change the hardware regs */
#endif
#endif
                                break;
                                break;
                        case 5:                 /* Inverted screen on/off */
                        case 5:                 /* Inverted screen on/off */
                                if (decscnm != on_off) {
                                if (decscnm != on_off) {
                                        decscnm = on_off;
                                        decscnm = on_off;
                                        invert_screen(currcons, 0, screenbuf_size, 0);
                                        invert_screen(currcons, 0, screenbuf_size, 0);
                                        update_attr(currcons);
                                        update_attr(currcons);
                                }
                                }
                                break;
                                break;
                        case 6:                 /* Origin relative/absolute */
                        case 6:                 /* Origin relative/absolute */
                                decom = on_off;
                                decom = on_off;
                                gotoxy(currcons,0,0);
                                gotoxy(currcons,0,0);
                                break;
                                break;
                        case 7:                 /* Autowrap on/off */
                        case 7:                 /* Autowrap on/off */
                                decawm = on_off;
                                decawm = on_off;
                                break;
                                break;
                        case 8:                 /* Autorepeat on/off */
                        case 8:                 /* Autorepeat on/off */
                                if (on_off)
                                if (on_off)
                                        set_kbd(decarm);
                                        set_kbd(decarm);
                                else
                                else
                                        clr_kbd(decarm);
                                        clr_kbd(decarm);
                                break;
                                break;
                        case 9:
                        case 9:
                                report_mouse = on_off ? 1 : 0;
                                report_mouse = on_off ? 1 : 0;
                                break;
                                break;
                        case 25:                /* Cursor on/off */
                        case 25:                /* Cursor on/off */
                                deccm = on_off;
                                deccm = on_off;
                                set_cursor(currcons);
                                set_cursor(currcons);
                                break;
                                break;
                        case 1000:
                        case 1000:
                                report_mouse = on_off ? 2 : 0;
                                report_mouse = on_off ? 2 : 0;
                                break;
                                break;
                } else switch(par[i]) {         /* ANSI modes set/reset */
                } else switch(par[i]) {         /* ANSI modes set/reset */
                        case 3:                 /* Monitor (display ctrls) */
                        case 3:                 /* Monitor (display ctrls) */
                                disp_ctrl = on_off;
                                disp_ctrl = on_off;
                                break;
                                break;
                        case 4:                 /* Insert Mode on/off */
                        case 4:                 /* Insert Mode on/off */
                                decim = on_off;
                                decim = on_off;
                                break;
                                break;
                        case 20:                /* Lf, Enter == CrLf/Lf */
                        case 20:                /* Lf, Enter == CrLf/Lf */
                                if (on_off)
                                if (on_off)
                                        set_kbd(lnm);
                                        set_kbd(lnm);
                                else
                                else
                                        clr_kbd(lnm);
                                        clr_kbd(lnm);
                                break;
                                break;
                }
                }
}
}
 
 
static void setterm_command(int currcons)
static void setterm_command(int currcons)
{
{
        switch(par[0]) {
        switch(par[0]) {
                case 1: /* set color for underline mode */
                case 1: /* set color for underline mode */
                        if (can_do_color && par[1] < 16) {
                        if (can_do_color && par[1] < 16) {
                                ulcolor = color_table[par[1]];
                                ulcolor = color_table[par[1]];
                                if (underline)
                                if (underline)
                                        update_attr(currcons);
                                        update_attr(currcons);
                        }
                        }
                        break;
                        break;
                case 2: /* set color for half intensity mode */
                case 2: /* set color for half intensity mode */
                        if (can_do_color && par[1] < 16) {
                        if (can_do_color && par[1] < 16) {
                                halfcolor = color_table[par[1]];
                                halfcolor = color_table[par[1]];
                                if (intensity == 0)
                                if (intensity == 0)
                                        update_attr(currcons);
                                        update_attr(currcons);
                        }
                        }
                        break;
                        break;
                case 8: /* store colors as defaults */
                case 8: /* store colors as defaults */
                        def_color = attr;
                        def_color = attr;
                        default_attr(currcons);
                        default_attr(currcons);
                        update_attr(currcons);
                        update_attr(currcons);
                        break;
                        break;
                case 9: /* set blanking interval */
                case 9: /* set blanking interval */
                        blankinterval = ((par[1] < 60) ? par[1] : 60) * 60 * HZ;
                        blankinterval = ((par[1] < 60) ? par[1] : 60) * 60 * HZ;
                        poke_blanked_console();
                        poke_blanked_console();
                        break;
                        break;
                case 10: /* set bell frequency in Hz */
                case 10: /* set bell frequency in Hz */
                        if (npar >= 1)
                        if (npar >= 1)
                                bell_pitch = par[1];
                                bell_pitch = par[1];
                        else
                        else
                                bell_pitch = DEFAULT_BELL_PITCH;
                                bell_pitch = DEFAULT_BELL_PITCH;
                        break;
                        break;
                case 11: /* set bell duration in msec */
                case 11: /* set bell duration in msec */
                        if (npar >= 1)
                        if (npar >= 1)
                                bell_duration = (par[1] < 2000) ?
                                bell_duration = (par[1] < 2000) ?
                                        par[1]*HZ/1000 : 0;
                                        par[1]*HZ/1000 : 0;
                        else
                        else
                                bell_duration = DEFAULT_BELL_DURATION;
                                bell_duration = DEFAULT_BELL_DURATION;
                        break;
                        break;
                case 12: /* bring specified console to the front */
                case 12: /* bring specified console to the front */
                        if (par[1] >= 1 && vc_cons_allocated(par[1]-1))
                        if (par[1] >= 1 && vc_cons_allocated(par[1]-1))
                                update_screen(par[1]-1);
                                update_screen(par[1]-1);
                        break;
                        break;
                case 13: /* unblank the screen */
                case 13: /* unblank the screen */
                        unblank_screen();
                        unblank_screen();
                        break;
                        break;
        }
        }
}
}
 
 
static void insert_char(int currcons)
static void insert_char(int currcons)
{
{
        int i;
        int i;
        unsigned short *p = pos;
        unsigned short *p = pos;
 
 
        for (i = cols - x - 2; i >= 0; i--)
        for (i = cols - x - 2; i >= 0; i--)
          p[i + 1] = p[i];
          p[i + 1] = p[i];
        *pos = video_erase_char;
        *pos = video_erase_char;
        need_wrap = 0;
        need_wrap = 0;
 
 
        if (currcons != fg_console)
        if (currcons != fg_console)
          return;
          return;
 
 
        /* Arno:
        /* Arno:
         * Move the remainder of the line (-1 character) one spot to the right
         * Move the remainder of the line (-1 character) one spot to the right
         */
         */
        sw->con_bmove(vc_cons[currcons].d,y,x,y,x+1,1,(cols-x-1));
        sw->con_bmove(vc_cons[currcons].d,y,x,y,x+1,1,(cols-x-1));
        /*
        /*
         * Print the erase char on the current position
         * Print the erase char on the current position
         */
         */
        sw->con_putc(vc_cons[currcons].d,(video_erase_char & 0x00ff),y,x);
        sw->con_putc(vc_cons[currcons].d,(video_erase_char & 0x00ff),y,x);
}
}
 
 
static void csi_at(int currcons, unsigned int nr)
static void csi_at(int currcons, unsigned int nr)
{
{
        int i;
        int i;
        unsigned short *p;
        unsigned short *p;
 
 
        if (nr > cols - x)
        if (nr > cols - x)
                nr = cols - x;
                nr = cols - x;
        else if (!nr)
        else if (!nr)
                nr = 1;
                nr = 1;
 
 
        p = pos + cols - x - nr;
        p = pos + cols - x - nr;
        while (--p >= pos)
        while (--p >= pos)
          p[nr] = *p;
          p[nr] = *p;
        for (i = 0; i < nr; i++)
        for (i = 0; i < nr; i++)
          *++p = video_erase_char;
          *++p = video_erase_char;
        need_wrap = 0;
        need_wrap = 0;
 
 
        if (currcons != fg_console)
        if (currcons != fg_console)
          return;
          return;
 
 
        sw->con_bmove (vc_cons[currcons].d, y, x, y, x + nr,
        sw->con_bmove (vc_cons[currcons].d, y, x, y, x + nr,
                       1, cols - x - nr);
                       1, cols - x - nr);
        while (nr--)
        while (nr--)
          sw->con_putc (vc_cons[currcons].d, video_erase_char & 0x00ff,
          sw->con_putc (vc_cons[currcons].d, video_erase_char & 0x00ff,
                        y, x + nr);
                        y, x + nr);
}
}
 
 
static void csi_L(int currcons, unsigned int nr)
static void csi_L(int currcons, unsigned int nr)
{
{
        if (nr > rows)
        if (nr > rows)
                nr = rows;
                nr = rows;
        else if (!nr)
        else if (!nr)
                nr = 1;
                nr = 1;
        scrdown (currcons, y, bottom, nr);
        scrdown (currcons, y, bottom, nr);
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
static void csi_P(int currcons, unsigned int nr)
static void csi_P(int currcons, unsigned int nr)
{
{
        int i;
        int i;
        unsigned short *p, *end;
        unsigned short *p, *end;
 
 
        if (nr > cols - x)
        if (nr > cols - x)
                nr = cols - x;
                nr = cols - x;
        else if (!nr)
        else if (!nr)
                nr = 1;
                nr = 1;
 
 
        p = pos;
        p = pos;
        end = pos + cols - x - nr;
        end = pos + cols - x - nr;
        while (p < end)
        while (p < end)
          *p = p[nr], p++;
          *p = p[nr], p++;
        for (i = 0; i < nr; i++)
        for (i = 0; i < nr; i++)
          *p++ = video_erase_char;
          *p++ = video_erase_char;
        need_wrap = 0;
        need_wrap = 0;
 
 
        if (currcons != fg_console)
        if (currcons != fg_console)
          return;
          return;
 
 
        sw->con_bmove (vc_cons[currcons].d, y, x + nr, y, x,
        sw->con_bmove (vc_cons[currcons].d, y, x + nr, y, x,
                       1, cols - x - nr);
                       1, cols - x - nr);
 
 
        while (nr--)
        while (nr--)
          sw->con_putc (vc_cons[currcons].d, video_erase_char & 0x00ff,
          sw->con_putc (vc_cons[currcons].d, video_erase_char & 0x00ff,
                        y, cols - 1 - nr);
                        y, cols - 1 - nr);
}
}
 
 
static void csi_M(int currcons, unsigned int nr)
static void csi_M(int currcons, unsigned int nr)
{
{
        if (nr > rows)
        if (nr > rows)
                nr = rows;
                nr = rows;
        else if (!nr)
        else if (!nr)
                nr=1;
                nr=1;
        scrup (currcons, y, bottom, nr);
        scrup (currcons, y, bottom, nr);
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
static void save_cur(int currcons)
static void save_cur(int currcons)
{
{
        saved_x         = x;
        saved_x         = x;
        saved_y         = y;
        saved_y         = y;
        s_intensity     = intensity;
        s_intensity     = intensity;
        s_underline     = underline;
        s_underline     = underline;
        s_blink         = blink;
        s_blink         = blink;
        s_reverse       = reverse;
        s_reverse       = reverse;
        s_charset       = charset;
        s_charset       = charset;
        s_color         = color;
        s_color         = color;
        saved_G0        = G0_charset;
        saved_G0        = G0_charset;
        saved_G1        = G1_charset;
        saved_G1        = G1_charset;
}
}
 
 
static void restore_cur(int currcons)
static void restore_cur(int currcons)
{
{
        gotoxy(currcons,saved_x,saved_y);
        gotoxy(currcons,saved_x,saved_y);
        intensity       = s_intensity;
        intensity       = s_intensity;
        underline       = s_underline;
        underline       = s_underline;
        blink           = s_blink;
        blink           = s_blink;
        reverse         = s_reverse;
        reverse         = s_reverse;
        charset         = s_charset;
        charset         = s_charset;
        color           = s_color;
        color           = s_color;
        G0_charset      = saved_G0;
        G0_charset      = saved_G0;
        G1_charset      = saved_G1;
        G1_charset      = saved_G1;
        translate       = set_translate(charset ? G1_charset : G0_charset);
        translate       = set_translate(charset ? G1_charset : G0_charset);
        update_attr(currcons);
        update_attr(currcons);
        need_wrap = 0;
        need_wrap = 0;
}
}
 
 
enum { ESnormal, ESesc, ESsquare, ESgetpars, ESgotpars, ESfunckey,
enum { ESnormal, ESesc, ESsquare, ESgetpars, ESgotpars, ESfunckey,
        EShash, ESsetG0, ESsetG1, ESpercent, ESignore, ESnonstd,
        EShash, ESsetG0, ESsetG1, ESpercent, ESignore, ESnonstd,
        ESpalette };
        ESpalette };
 
 
static void reset_terminal(int currcons, int do_clear)
static void reset_terminal(int currcons, int do_clear)
{
{
        top             = 0;
        top             = 0;
        bottom          = rows;
        bottom          = rows;
        vc_state        = ESnormal;
        vc_state        = ESnormal;
        ques            = 0;
        ques            = 0;
        translate       = set_translate(LAT1_MAP);
        translate       = set_translate(LAT1_MAP);
        G0_charset      = LAT1_MAP;
        G0_charset      = LAT1_MAP;
        G1_charset      = GRAF_MAP;
        G1_charset      = GRAF_MAP;
        charset         = 0;
        charset         = 0;
        need_wrap       = 0;
        need_wrap       = 0;
        report_mouse    = 0;
        report_mouse    = 0;
        utf             = 0;
        utf             = 0;
        utf_count       = 0;
        utf_count       = 0;
 
 
        disp_ctrl       = 0;
        disp_ctrl       = 0;
        toggle_meta     = 0;
        toggle_meta     = 0;
 
 
        decscnm         = 0;
        decscnm         = 0;
        decom           = 0;
        decom           = 0;
        decawm          = 1;
        decawm          = 1;
        deccm           = 1;
        deccm           = 1;
        decim           = 0;
        decim           = 0;
 
 
        set_kbd(decarm);
        set_kbd(decarm);
        clr_kbd(decckm);
        clr_kbd(decckm);
        clr_kbd(kbdapplic);
        clr_kbd(kbdapplic);
        clr_kbd(lnm);
        clr_kbd(lnm);
        kbd_table[currcons].lockstate = 0;
        kbd_table[currcons].lockstate = 0;
        kbd_table[currcons].slockstate = 0;
        kbd_table[currcons].slockstate = 0;
        kbd_table[currcons].ledmode = LED_SHOW_FLAGS;
        kbd_table[currcons].ledmode = LED_SHOW_FLAGS;
        kbd_table[currcons].ledflagstate = kbd_table[currcons].default_ledflagstate;
        kbd_table[currcons].ledflagstate = kbd_table[currcons].default_ledflagstate;
        set_leds();
        set_leds();
 
 
        default_attr(currcons);
        default_attr(currcons);
        update_attr(currcons);
        update_attr(currcons);
 
 
        tab_stop[0]      = 0x01010100;
        tab_stop[0]      = 0x01010100;
        tab_stop[1]     =
        tab_stop[1]     =
        tab_stop[2]     =
        tab_stop[2]     =
        tab_stop[3]     =
        tab_stop[3]     =
        tab_stop[4]     = 0x01010101;
        tab_stop[4]     = 0x01010101;
 
 
        bell_pitch = DEFAULT_BELL_PITCH;
        bell_pitch = DEFAULT_BELL_PITCH;
        bell_duration = DEFAULT_BELL_DURATION;
        bell_duration = DEFAULT_BELL_DURATION;
 
 
        gotoxy(currcons,0,0);
        gotoxy(currcons,0,0);
        save_cur(currcons);
        save_cur(currcons);
        if (do_clear)
        if (do_clear)
            csi_J(currcons,2);
            csi_J(currcons,2);
}
}
 
 
/*
/*
 * Turn the Scroll-Lock LED on when the tty is stopped
 * Turn the Scroll-Lock LED on when the tty is stopped
 */
 */
static void con_stop(struct tty_struct *tty)
static void con_stop(struct tty_struct *tty)
{
{
        int console_num;
        int console_num;
        if (!tty)
        if (!tty)
                return;
                return;
        console_num = MINOR(tty->device) - (tty->driver.minor_start);
        console_num = MINOR(tty->device) - (tty->driver.minor_start);
        if (!vc_cons_allocated(console_num))
        if (!vc_cons_allocated(console_num))
                return;
                return;
        set_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK);
        set_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK);
        set_leds();
        set_leds();
}
}
 
 
/*
/*
 * Turn the Scroll-Lock LED off when the console is started
 * Turn the Scroll-Lock LED off when the console is started
 */
 */
static void con_start(struct tty_struct *tty)
static void con_start(struct tty_struct *tty)
{
{
        int console_num;
        int console_num;
        if (!tty)
        if (!tty)
                return;
                return;
        console_num = MINOR(tty->device) - (tty->driver.minor_start);
        console_num = MINOR(tty->device) - (tty->driver.minor_start);
        if (!vc_cons_allocated(console_num))
        if (!vc_cons_allocated(console_num))
                return;
                return;
        clr_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK);
        clr_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK);
        set_leds();
        set_leds();
}
}
 
 
static int con_write(struct tty_struct * tty, int from_user,
static int con_write(struct tty_struct * tty, int from_user,
                     const unsigned char *buf, int count)
                     const unsigned char *buf, int count)
{
{
        int c, tc, ok, n = 0;
        int c, tc, ok, n = 0;
        unsigned int currcons;
        unsigned int currcons;
        struct vt_struct *vt = (struct vt_struct *)tty->driver_data;
        struct vt_struct *vt = (struct vt_struct *)tty->driver_data;
 
 
        currcons = vt->vc_num;
        currcons = vt->vc_num;
        if (!vc_cons_allocated(currcons)) {
        if (!vc_cons_allocated(currcons)) {
                /* could this happen? */
                /* could this happen? */
                static int error = 0;
                static int error = 0;
                if (!error) {
                if (!error) {
                        error = 1;
                        error = 1;
                        printk("con_write: tty %d not allocated\n", currcons+1);
                        printk("con_write: tty %d not allocated\n", currcons+1);
                }
                }
                return 0;
                return 0;
        }
        }
 
 
        /* undraw cursor first */
        /* undraw cursor first */
        if (currcons == fg_console)
        if (currcons == fg_console)
                hide_cursor(currcons);
                hide_cursor(currcons);
 
 
        /* clear the selection */
        /* clear the selection */
        if (currcons == sel_cons)
        if (currcons == sel_cons)
                clear_selection();
                clear_selection();
 
 
        disable_bh(CONSOLE_BH);
        disable_bh(CONSOLE_BH);
        while (count) {
        while (count) {
                enable_bh(CONSOLE_BH);
                enable_bh(CONSOLE_BH);
                c = from_user ? get_user(buf) : *buf;
                c = from_user ? get_user(buf) : *buf;
                buf++; n++; count--;
                buf++; n++; count--;
                disable_bh(CONSOLE_BH);
                disable_bh(CONSOLE_BH);
 
 
                if (utf) {
                if (utf) {
                    /* Combine UTF-8 into Unicode */
                    /* Combine UTF-8 into Unicode */
                    /* Incomplete characters silently ignored */
                    /* Incomplete characters silently ignored */
                    if(c > 0x7f) {
                    if(c > 0x7f) {
                        if (utf_count > 0 && (c & 0xc0) == 0x80) {
                        if (utf_count > 0 && (c & 0xc0) == 0x80) {
                                utf_char = (utf_char << 6) | (c & 0x3f);
                                utf_char = (utf_char << 6) | (c & 0x3f);
                                utf_count--;
                                utf_count--;
                                if (utf_count == 0)
                                if (utf_count == 0)
                                    tc = c = utf_char;
                                    tc = c = utf_char;
                                else continue;
                                else continue;
                        } else {
                        } else {
                                if ((c & 0xe0) == 0xc0) {
                                if ((c & 0xe0) == 0xc0) {
                                    utf_count = 1;
                                    utf_count = 1;
                                    utf_char = (c & 0x1f);
                                    utf_char = (c & 0x1f);
                                } else if ((c & 0xf0) == 0xe0) {
                                } else if ((c & 0xf0) == 0xe0) {
                                    utf_count = 2;
                                    utf_count = 2;
                                    utf_char = (c & 0x0f);
                                    utf_char = (c & 0x0f);
                                } else if ((c & 0xf8) == 0xf0) {
                                } else if ((c & 0xf8) == 0xf0) {
                                    utf_count = 3;
                                    utf_count = 3;
                                    utf_char = (c & 0x07);
                                    utf_char = (c & 0x07);
                                } else if ((c & 0xfc) == 0xf8) {
                                } else if ((c & 0xfc) == 0xf8) {
                                    utf_count = 4;
                                    utf_count = 4;
                                    utf_char = (c & 0x03);
                                    utf_char = (c & 0x03);
                                } else if ((c & 0xfe) == 0xfc) {
                                } else if ((c & 0xfe) == 0xfc) {
                                    utf_count = 5;
                                    utf_count = 5;
                                    utf_char = (c & 0x01);
                                    utf_char = (c & 0x01);
                                } else
                                } else
                                    utf_count = 0;
                                    utf_count = 0;
                                continue;
                                continue;
                        }
                        }
                    } else {
                    } else {
                        tc = c;
                        tc = c;
                        utf_count = 0;
                        utf_count = 0;
                    }
                    }
                } else {        /* no utf */
                } else {        /* no utf */
                    tc = translate[toggle_meta ? (c|0x80) : c];
                    tc = translate[toggle_meta ? (c|0x80) : c];
                }
                }
 
 
                /* If the original code was < 32 we only allow a
                /* If the original code was < 32 we only allow a
                 * glyph to be displayed if the code is not normally
                 * glyph to be displayed if the code is not normally
                 * used (such as for cursor movement) or if the
                 * used (such as for cursor movement) or if the
                 * disp_ctrl mode has been explicitly enabled.
                 * disp_ctrl mode has been explicitly enabled.
                 * Note: ESC is *never* allowed to be displayed as
                 * Note: ESC is *never* allowed to be displayed as
                 * that would disable all escape sequences!
                 * that would disable all escape sequences!
                 * To display font position 0x1B, go into UTF mode
                 * To display font position 0x1B, go into UTF mode
                 * and display character U+F01B, or change the mapping.
                 * and display character U+F01B, or change the mapping.
                 */
                 */
                ok = (tc && (c >= 32 || (!utf && !(((disp_ctrl ? CTRL_ALWAYS
                ok = (tc && (c >= 32 || (!utf && !(((disp_ctrl ? CTRL_ALWAYS
                                            : CTRL_ACTION) >> c) & 1))));
                                            : CTRL_ACTION) >> c) & 1))));
 
 
                if (vc_state == ESnormal && ok) {
                if (vc_state == ESnormal && ok) {
                        /* Now try to find out how to display it */
                        /* Now try to find out how to display it */
                        tc = conv_uni_to_pc(tc);
                        tc = conv_uni_to_pc(tc);
                        if ( tc == -4 )
                        if ( tc == -4 )
                          {
                          {
                            /* If we got -4 (not found) then see if we have
                            /* If we got -4 (not found) then see if we have
                               defined a replacement character (U+FFFD) */
                               defined a replacement character (U+FFFD) */
                            tc = conv_uni_to_pc(0xfffd);
                            tc = conv_uni_to_pc(0xfffd);
                          }
                          }
                        else if ( tc == -3 )
                        else if ( tc == -3 )
                          {
                          {
                            /* Bad hash table -- hope for the best */
                            /* Bad hash table -- hope for the best */
                            tc = c;
                            tc = c;
                          }
                          }
                        if (tc & ~console_charmask)
                        if (tc & ~console_charmask)
                          continue; /* Conversion failed */
                          continue; /* Conversion failed */
 
 
                        if (need_wrap) {
                        if (need_wrap) {
                                cr(currcons);
                                cr(currcons);
                                lf(currcons);
                                lf(currcons);
                        }
                        }
 
 
#if 1 /* XXX */
#if 1 /* XXX */
                        /* DPC: 1994-04-12
                        /* DPC: 1994-04-12
                         *   Speed up overstrike mode, using new putcs.
                         *   Speed up overstrike mode, using new putcs.
                         *
                         *
                         * P.S. I hate 8 spaces per tab! Use Emacs!
                         * P.S. I hate 8 spaces per tab! Use Emacs!
                         */
                         */
 
 
                        /* Only use this for the foreground console,
                        /* Only use this for the foreground console,
                           where we really draw the chars */
                           where we really draw the chars */
 
 
                        if (count > 2 &&
                        if (count > 2 &&
                            !decim && !utf && currcons == fg_console) {
                            !decim && !utf && currcons == fg_console) {
                                static char putcs_buf[256];
                                static char putcs_buf[256];
                                char   *p     = putcs_buf;
                                char   *p     = putcs_buf;
                                int putcs_count  = 1;
                                int putcs_count  = 1;
                                ushort nextx  = x + 1;
                                ushort nextx  = x + 1;
 
 
                                *p++ = tc;
                                *p++ = tc;
                                *pos++ = tc | (attr << 8);
                                *pos++ = tc | (attr << 8);
 
 
                                if (nextx == cols) {
                                if (nextx == cols) {
                                        sw->con_putc(vc_cons[currcons].d,
                                        sw->con_putc(vc_cons[currcons].d,
                                                     *putcs_buf, y, x);
                                                     *putcs_buf, y, x);
                                        pos--;
                                        pos--;
                                        need_wrap = decawm;
                                        need_wrap = decawm;
                                        continue;
                                        continue;
                                }
                                }
 
 
                                /* TAB TAB TAB - Arghh!!!! */
                                /* TAB TAB TAB - Arghh!!!! */
 
 
                                while (count)
                                while (count)
                                {
                                {
                                        enable_bh(CONSOLE_BH);
                                        enable_bh(CONSOLE_BH);
                                        c = from_user ? get_user(buf) : *buf;
                                        c = from_user ? get_user(buf) : *buf;
                                        disable_bh(CONSOLE_BH);
                                        disable_bh(CONSOLE_BH);
                                        tc = translate[toggle_meta ? (c|0x80) : c];
                                        tc = translate[toggle_meta ? (c|0x80) : c];
                                        if (!tc ||
                                        if (!tc ||
                                            !(c >= 32
                                            !(c >= 32
                                              || !(((disp_ctrl ? CTRL_ALWAYS
                                              || !(((disp_ctrl ? CTRL_ALWAYS
                                                   : CTRL_ACTION) >> c) & 1)))
                                                   : CTRL_ACTION) >> c) & 1)))
                                          break;
                                          break;
                                        tc = conv_uni_to_pc(tc);
                                        tc = conv_uni_to_pc(tc);
                                        if (tc == -4)
                                        if (tc == -4)
                                          tc = conv_uni_to_pc(0xfffd);
                                          tc = conv_uni_to_pc(0xfffd);
                                        else if (tc == -3)
                                        else if (tc == -3)
                                          tc = c;
                                          tc = c;
 
 
                                        buf++; n++; count--;
                                        buf++; n++; count--;
                                        if (tc & ~console_charmask)
                                        if (tc & ~console_charmask)
                                          continue; /* Conversion failed */
                                          continue; /* Conversion failed */
 
 
                                        *p++ = tc;
                                        *p++ = tc;
                                        *pos++ = tc | (attr << 8);
                                        *pos++ = tc | (attr << 8);
                                        ++putcs_count;
                                        ++putcs_count;
                                        ++nextx;
                                        ++nextx;
                                        if (nextx == cols ||
                                        if (nextx == cols ||
                                            putcs_count == sizeof (putcs_buf))
                                            putcs_count == sizeof (putcs_buf))
                                                break;
                                                break;
                                }
                                }
 
 
                                sw->con_putcs(vc_cons[currcons].d,
                                sw->con_putcs(vc_cons[currcons].d,
                                              putcs_buf, putcs_count, y, x);
                                              putcs_buf, putcs_count, y, x);
                                if (nextx == cols) {
                                if (nextx == cols) {
                                        pos--;
                                        pos--;
                                        x         = cols-1;
                                        x         = cols-1;
                                        need_wrap = decawm;
                                        need_wrap = decawm;
                                } else
                                } else
                                        x += putcs_count;
                                        x += putcs_count;
                                continue;
                                continue;
                        }
                        }
 
 
                        /* DPC: End of putcs support */
                        /* DPC: End of putcs support */
#endif
#endif
 
 
                        if (decim)
                        if (decim)
                                insert_char(currcons);
                                insert_char(currcons);
                        *pos = (attr << 8) + tc;
                        *pos = (attr << 8) + tc;
                        if (currcons == fg_console)
                        if (currcons == fg_console)
                                sw->con_putc(vc_cons[currcons].d,tc,y,x);
                                sw->con_putc(vc_cons[currcons].d,tc,y,x);
                        if (x == cols - 1)
                        if (x == cols - 1)
                                need_wrap = decawm;
                                need_wrap = decawm;
                        else {
                        else {
                                pos++;
                                pos++;
                                x++;
                                x++;
                        }
                        }
                        continue;
                        continue;
                }
                }
 
 
                /*
                /*
                 *  Control characters can be used in the _middle_
                 *  Control characters can be used in the _middle_
                 *  of an escape sequence.
                 *  of an escape sequence.
                 */
                 */
                switch (c) {
                switch (c) {
                    case 7:
                    case 7:
                        if (bell_duration)
                        if (bell_duration)
                            kd_mksound(bell_pitch, bell_duration);
                            kd_mksound(bell_pitch, bell_duration);
                        continue;
                        continue;
                    case 8:
                    case 8:
                        bs(currcons);
                        bs(currcons);
                        continue;
                        continue;
                    case 9:
                    case 9:
                        pos -= x;
                        pos -= x;
                        while (x < cols - 1) {
                        while (x < cols - 1) {
                                x++;
                                x++;
                                if (tab_stop[x >> 5] & (1 << (x & 31)))
                                if (tab_stop[x >> 5] & (1 << (x & 31)))
                                        break;
                                        break;
                        }
                        }
                        pos += x;
                        pos += x;
                        continue;
                        continue;
                    case 10: case 11: case 12:
                    case 10: case 11: case 12:
                        lf(currcons);
                        lf(currcons);
                        if (!is_kbd(lnm))
                        if (!is_kbd(lnm))
                                continue;
                                continue;
                    case 13:
                    case 13:
                        cr(currcons);
                        cr(currcons);
                        continue;
                        continue;
                        case 14:
                        case 14:
                        charset = 1;
                        charset = 1;
                        translate = set_translate(G1_charset);
                        translate = set_translate(G1_charset);
                        disp_ctrl = 1;
                        disp_ctrl = 1;
                        continue;
                        continue;
                    case 15:
                    case 15:
                        charset = 0;
                        charset = 0;
                        translate = set_translate(G0_charset);
                        translate = set_translate(G0_charset);
                        disp_ctrl = 0;
                        disp_ctrl = 0;
                        continue;
                        continue;
                    case 24: case 26:
                    case 24: case 26:
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        continue;
                        continue;
                    case 27:
                    case 27:
                        vc_state = ESesc;
                        vc_state = ESesc;
                        continue;
                        continue;
                    case 127:
                    case 127:
                        del(currcons);
                        del(currcons);
                        continue;
                        continue;
                    case 128+27:
                    case 128+27:
                        vc_state = ESsquare;
                        vc_state = ESsquare;
                        continue;
                        continue;
                }
                }
                switch(vc_state) {
                switch(vc_state) {
                    case ESesc:
                    case ESesc:
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        switch (c) {
                        switch (c) {
                            case '[':
                            case '[':
                                vc_state = ESsquare;
                                vc_state = ESsquare;
                                continue;
                                continue;
                            case ']':
                            case ']':
                                vc_state = ESnonstd;
                                vc_state = ESnonstd;
                                continue;
                                continue;
                            case '%':
                            case '%':
                                vc_state = ESpercent;
                                vc_state = ESpercent;
                                continue;
                                continue;
                            case 'E':
                            case 'E':
                                cr(currcons);
                                cr(currcons);
                                lf(currcons);
                                lf(currcons);
                                continue;
                                continue;
                            case 'M':
                            case 'M':
                                ri(currcons);
                                ri(currcons);
                                continue;
                                continue;
                            case 'D':
                            case 'D':
                                lf(currcons);
                                lf(currcons);
                                continue;
                                continue;
                            case 'H':
                            case 'H':
                                tab_stop[x >> 5] |= (1 << (x & 31));
                                tab_stop[x >> 5] |= (1 << (x & 31));
                                continue;
                                continue;
                            case 'Z':
                            case 'Z':
                                respond_ID(tty);
                                respond_ID(tty);
                                continue;
                                continue;
                            case '7':
                            case '7':
                                save_cur(currcons);
                                save_cur(currcons);
                                continue;
                                continue;
                            case '8':
                            case '8':
                                restore_cur(currcons);
                                restore_cur(currcons);
                                continue;
                                continue;
                            case '(':
                            case '(':
                                vc_state = ESsetG0;
                                vc_state = ESsetG0;
                                continue;
                                continue;
                            case ')':
                            case ')':
                                vc_state = ESsetG1;
                                vc_state = ESsetG1;
                                continue;
                                continue;
                            case '#':
                            case '#':
                                vc_state = EShash;
                                vc_state = EShash;
                                continue;
                                continue;
                            case 'c':
                            case 'c':
                                reset_terminal(currcons,1);
                                reset_terminal(currcons,1);
                                continue;
                                continue;
                            case '>':  /* Numeric keypad */
                            case '>':  /* Numeric keypad */
                                clr_kbd(kbdapplic);
                                clr_kbd(kbdapplic);
                                continue;
                                continue;
                            case '=':  /* Appl. keypad */
                            case '=':  /* Appl. keypad */
                                set_kbd(kbdapplic);
                                set_kbd(kbdapplic);
                                continue;
                                continue;
                        }
                        }
                        continue;
                        continue;
                    case ESnonstd:
                    case ESnonstd:
                        if (c=='P') {   /* palette escape sequence */
                        if (c=='P') {   /* palette escape sequence */
                            for (npar=0; npar<NPAR; npar++)
                            for (npar=0; npar<NPAR; npar++)
                                par[npar] = 0 ;
                                par[npar] = 0 ;
                            npar = 0 ;
                            npar = 0 ;
                            vc_state = ESpalette;
                            vc_state = ESpalette;
                            continue;
                            continue;
                        } else if (c=='R') {   /* reset palette */
                        } else if (c=='R') {   /* reset palette */
#if 0
#if 0
                            reset_palette (currcons);
                            reset_palette (currcons);
#endif
#endif
                            vc_state = ESnormal;
                            vc_state = ESnormal;
                        } else
                        } else
                            vc_state = ESnormal;
                            vc_state = ESnormal;
                        continue;
                        continue;
                case ESpalette:
                case ESpalette:
                        if ( (c>='0'&&c<='9') || (c>='A'&&c<='F') || (c>='a'&&c<='f') ) {
                        if ( (c>='0'&&c<='9') || (c>='A'&&c<='F') || (c>='a'&&c<='f') ) {
                            par[npar++] = (c>'9' ? (c&0xDF)-'A'+10 : c-'0') ;
                            par[npar++] = (c>'9' ? (c&0xDF)-'A'+10 : c-'0') ;
                            if (npar==7) {
                            if (npar==7) {
#if 0
#if 0
                                int i = par[0]*3, j = 1;
                                int i = par[0]*3, j = 1;
                                palette[i] = 16*par[j++];
                                palette[i] = 16*par[j++];
                                palette[i++] += par[j++];
                                palette[i++] += par[j++];
                                palette[i] = 16*par[j++];
                                palette[i] = 16*par[j++];
                                palette[i++] += par[j++];
                                palette[i++] += par[j++];
                                palette[i] = 16*par[j++];
                                palette[i] = 16*par[j++];
                                palette[i] += par[j];
                                palette[i] += par[j];
                                set_palette() ;
                                set_palette() ;
#endif
#endif
                                vc_state = ESnormal;
                                vc_state = ESnormal;
                            }
                            }
                        } else
                        } else
                            vc_state = ESnormal;
                            vc_state = ESnormal;
                        continue;
                        continue;
                    case ESsquare:
                    case ESsquare:
                        for(npar = 0 ; npar < NPAR ; npar++)
                        for(npar = 0 ; npar < NPAR ; npar++)
                                par[npar] = 0;
                                par[npar] = 0;
                        npar = 0;
                        npar = 0;
                        vc_state = ESgetpars;
                        vc_state = ESgetpars;
                        if (c == '[') { /* Function key */
                        if (c == '[') { /* Function key */
                                vc_state=ESfunckey;
                                vc_state=ESfunckey;
                                continue;
                                continue;
                        }
                        }
                        ques = (c=='?');
                        ques = (c=='?');
                        if (ques)
                        if (ques)
                                continue;
                                continue;
                    case ESgetpars:
                    case ESgetpars:
                        if (c==';' && npar<NPAR-1) {
                        if (c==';' && npar<NPAR-1) {
                                npar++;
                                npar++;
                                continue;
                                continue;
                        } else if (c>='0' && c<='9') {
                        } else if (c>='0' && c<='9') {
                                par[npar] *= 10;
                                par[npar] *= 10;
                                par[npar] += c-'0';
                                par[npar] += c-'0';
                                continue;
                                continue;
                        } else vc_state=ESgotpars;
                        } else vc_state=ESgotpars;
                    case ESgotpars:
                    case ESgotpars:
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        switch(c) {
                        switch(c) {
                            case 'h':
                            case 'h':
                                set_mode(currcons,1);
                                set_mode(currcons,1);
                                continue;
                                continue;
                            case 'l':
                            case 'l':
                                set_mode(currcons,0);
                                set_mode(currcons,0);
                                continue;
                                continue;
                            case 'n':
                            case 'n':
                                if (!ques)
                                if (!ques)
                                        if (par[0] == 5)
                                        if (par[0] == 5)
                                                status_report(tty);
                                                status_report(tty);
                                        else if (par[0] == 6)
                                        else if (par[0] == 6)
                                                cursor_report(currcons,tty);
                                                cursor_report(currcons,tty);
                                continue;
                                continue;
                        }
                        }
                        if (ques) {
                        if (ques) {
                                ques = 0;
                                ques = 0;
                                continue;
                                continue;
                        }
                        }
                        switch(c) {
                        switch(c) {
                            case 'G': case '`':
                            case 'G': case '`':
                                if (par[0]) par[0]--;
                                if (par[0]) par[0]--;
                                gotoxy(currcons,par[0],y);
                                gotoxy(currcons,par[0],y);
                                continue;
                                continue;
                            case 'A':
                            case 'A':
                                if (!par[0]) par[0]++;
                                if (!par[0]) par[0]++;
                                gotoxy(currcons,x,y-par[0]);
                                gotoxy(currcons,x,y-par[0]);
                                continue;
                                continue;
                            case 'B': case 'e':
                            case 'B': case 'e':
                                if (!par[0]) par[0]++;
                                if (!par[0]) par[0]++;
                                gotoxy(currcons,x,y+par[0]);
                                gotoxy(currcons,x,y+par[0]);
                                continue;
                                continue;
                            case 'C': case 'a':
                            case 'C': case 'a':
                                if (!par[0]) par[0]++;
                                if (!par[0]) par[0]++;
                                gotoxy(currcons,x+par[0],y);
                                gotoxy(currcons,x+par[0],y);
                                continue;
                                continue;
                            case 'D':
                            case 'D':
                                if (!par[0]) par[0]++;
                                if (!par[0]) par[0]++;
                                gotoxy(currcons,x-par[0],y);
                                gotoxy(currcons,x-par[0],y);
                                continue;
                                continue;
                            case 'E':
                            case 'E':
                                if (!par[0]) par[0]++;
                                if (!par[0]) par[0]++;
                                gotoxy(currcons,0,y+par[0]);
                                gotoxy(currcons,0,y+par[0]);
                                continue;
                                continue;
                            case 'F':
                            case 'F':
                                if (!par[0]) par[0]++;
                                if (!par[0]) par[0]++;
                                gotoxy(currcons,0,y-par[0]);
                                gotoxy(currcons,0,y-par[0]);
                                continue;
                                continue;
                            case 'd':
                            case 'd':
                                if (par[0]) par[0]--;
                                if (par[0]) par[0]--;
                                gotoxy(currcons,x,par[0]);
                                gotoxy(currcons,x,par[0]);
                                continue;
                                continue;
                            case 'H': case 'f':
                            case 'H': case 'f':
                                if (par[0]) par[0]--;
                                if (par[0]) par[0]--;
                                if (par[1]) par[1]--;
                                if (par[1]) par[1]--;
                                gotoxy(currcons,par[1],par[0]);
                                gotoxy(currcons,par[1],par[0]);
                                continue;
                                continue;
                            case 'J':
                            case 'J':
                                csi_J(currcons,par[0]);
                                csi_J(currcons,par[0]);
                                continue;
                                continue;
                            case 'K':
                            case 'K':
                                csi_K(currcons,par[0]);
                                csi_K(currcons,par[0]);
                                continue;
                                continue;
                            case 'L':
                            case 'L':
                                csi_L(currcons,par[0]);
                                csi_L(currcons,par[0]);
                                continue;
                                continue;
                            case 'M':
                            case 'M':
                                csi_M(currcons,par[0]);
                                csi_M(currcons,par[0]);
                                continue;
                                continue;
                            case 'P':
                            case 'P':
                                csi_P(currcons,par[0]);
                                csi_P(currcons,par[0]);
                                continue;
                                continue;
                            case 'c':
                            case 'c':
                                if (!par[0])
                                if (!par[0])
                                        respond_ID(tty);
                                        respond_ID(tty);
                                continue;
                                continue;
                            case 'g':
                            case 'g':
                                if (!par[0])
                                if (!par[0])
                                        tab_stop[x >> 5] &= ~(1 << (x & 31));
                                        tab_stop[x >> 5] &= ~(1 << (x & 31));
                                else if (par[0] == 3) {
                                else if (par[0] == 3) {
                                        tab_stop[0] =
                                        tab_stop[0] =
                                                tab_stop[1] =
                                                tab_stop[1] =
                                                        tab_stop[2] =
                                                        tab_stop[2] =
                                                                tab_stop[3] =
                                                                tab_stop[3] =
                                                                        tab_stop[4] = 0;
                                                                        tab_stop[4] = 0;
                                }
                                }
                                continue;
                                continue;
                            case 'm':
                            case 'm':
                                csi_m(currcons);
                                csi_m(currcons);
                                continue;
                                continue;
                            case 'q': /* DECLL - but only 3 leds */
                            case 'q': /* DECLL - but only 3 leds */
                                /* map 0,1,2,3 to 0,1,2,4 */
                                /* map 0,1,2,3 to 0,1,2,4 */
                                if (par[0] < 4)
                                if (par[0] < 4)
                                        setledstate(kbd_table + currcons,
                                        setledstate(kbd_table + currcons,
                                                    (par[0] < 3) ? par[0] : 4);
                                                    (par[0] < 3) ? par[0] : 4);
                                continue;
                                continue;
                            case 'r':
                            case 'r':
                                if (!par[0])
                                if (!par[0])
                                        par[0]++;
                                        par[0]++;
                                if (!par[1])
                                if (!par[1])
                                        par[1] = rows;
                                        par[1] = rows;
                                /* Minimum allowed region is 2 lines */
                                /* Minimum allowed region is 2 lines */
                                if (par[0] < par[1] &&
                                if (par[0] < par[1] &&
                                    par[1] <= rows) {
                                    par[1] <= rows) {
                                        top=par[0]-1;
                                        top=par[0]-1;
                                        bottom=par[1];
                                        bottom=par[1];
                                        gotoxy(currcons,0,0);
                                        gotoxy(currcons,0,0);
                                }
                                }
                                continue;
                                continue;
                            case 's':
                            case 's':
                                save_cur(currcons);
                                save_cur(currcons);
                                continue;
                                continue;
                            case 'u':
                            case 'u':
                                restore_cur(currcons);
                                restore_cur(currcons);
                                continue;
                                continue;
                            case 'X':
                            case 'X':
                                csi_X(currcons, par[0]);
                                csi_X(currcons, par[0]);
                                continue;
                                continue;
                            case '@':
                            case '@':
                                csi_at(currcons,par[0]);
                                csi_at(currcons,par[0]);
                                continue;
                                continue;
                            case ']': /* setterm functions */
                            case ']': /* setterm functions */
                                setterm_command(currcons);
                                setterm_command(currcons);
                                continue;
                                continue;
                        }
                        }
                        continue;
                        continue;
                    case ESpercent:
                    case ESpercent:
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        switch (c) {
                        switch (c) {
                            case '@':  /* defined in ISO 2022 */
                            case '@':  /* defined in ISO 2022 */
                                utf = 0;
                                utf = 0;
                                continue;
                                continue;
                            case 'G':  /* prelim official escape code */
                            case 'G':  /* prelim official escape code */
                            case '8':  /* retained for compatibility */
                            case '8':  /* retained for compatibility */
                                utf = 1;
                                utf = 1;
                                continue;
                                continue;
                        }
                        }
                        continue;
                        continue;
                    case ESfunckey:
                    case ESfunckey:
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        continue;
                        continue;
                    case EShash:
                    case EShash:
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        if (c == '8') {
                        if (c == '8') {
                                /* DEC screen alignment test. kludge :-) */
                                /* DEC screen alignment test. kludge :-) */
                                video_erase_char =
                                video_erase_char =
                                        (video_erase_char & 0xff00) | 'E';
                                        (video_erase_char & 0xff00) | 'E';
                                /* Arno:
                                /* Arno:
                                 * Doesn't work, because csi_J(c,2)
                                 * Doesn't work, because csi_J(c,2)
                                 * calls con_clear and doesn't print
                                 * calls con_clear and doesn't print
                                 * the erase char..
                                 * the erase char..
                                 */
                                 */
                                csi_J(currcons, 2);
                                csi_J(currcons, 2);
                                video_erase_char =
                                video_erase_char =
                                        (video_erase_char & 0xff00) | ' ';
                                        (video_erase_char & 0xff00) | ' ';
                        }
                        }
                        continue;
                        continue;
                    case ESsetG0:
                    case ESsetG0:
                        if (c == '0')
                        if (c == '0')
                                G0_charset = GRAF_MAP;
                                G0_charset = GRAF_MAP;
                        else if (c == 'B')
                        else if (c == 'B')
                                G0_charset = LAT1_MAP;
                                G0_charset = LAT1_MAP;
                        else if (c == 'U')
                        else if (c == 'U')
                                G0_charset = IBMPC_MAP;
                                G0_charset = IBMPC_MAP;
                        else if (c == 'K')
                        else if (c == 'K')
                                G0_charset = USER_MAP;
                                G0_charset = USER_MAP;
                        if (charset == 0)
                        if (charset == 0)
                                translate = set_translate(G0_charset);
                                translate = set_translate(G0_charset);
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        continue;
                        continue;
                    case ESsetG1:
                    case ESsetG1:
                        if (c == '0')
                        if (c == '0')
                                G1_charset = GRAF_MAP;
                                G1_charset = GRAF_MAP;
                        else if (c == 'B')
                        else if (c == 'B')
                                G1_charset = LAT1_MAP;
                                G1_charset = LAT1_MAP;
                        else if (c == 'U')
                        else if (c == 'U')
                                G1_charset = IBMPC_MAP;
                                G1_charset = IBMPC_MAP;
                        else if (c == 'K')
                        else if (c == 'K')
                                G1_charset = USER_MAP;
                                G1_charset = USER_MAP;
                        if (charset == 1)
                        if (charset == 1)
                                translate = set_translate(G1_charset);
                                translate = set_translate(G1_charset);
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                        continue;
                        continue;
                    default:
                    default:
                        vc_state = ESnormal;
                        vc_state = ESnormal;
                }
                }
        }
        }
        if (vcmode != KD_GRAPHICS)
        if (vcmode != KD_GRAPHICS)
                set_cursor(currcons);
                set_cursor(currcons);
        enable_bh(CONSOLE_BH);
        enable_bh(CONSOLE_BH);
        return n;
        return n;
}
}
 
 
static int con_write_room(struct tty_struct *tty)
static int con_write_room(struct tty_struct *tty)
{
{
        if (tty->stopped)
        if (tty->stopped)
                return 0;
                return 0;
        return 4096;            /* No limit, really; we're not buffering */
        return 4096;            /* No limit, really; we're not buffering */
}
}
 
 
static int con_chars_in_buffer(struct tty_struct *tty)
static int con_chars_in_buffer(struct tty_struct *tty)
{
{
        return 0;                /* we're not buffering */
        return 0;                /* we're not buffering */
}
}
 
 
void poke_blanked_console(void)
void poke_blanked_console(void)
{
{
        timer_active &= ~(1<<BLANK_TIMER);
        timer_active &= ~(1<<BLANK_TIMER);
        if (vt_cons[fg_console]->vc_mode == KD_GRAPHICS)
        if (vt_cons[fg_console]->vc_mode == KD_GRAPHICS)
                return;
                return;
        if (console_blanked) {
        if (console_blanked) {
                timer_table[BLANK_TIMER].fn = unblank_screen;
                timer_table[BLANK_TIMER].fn = unblank_screen;
                timer_table[BLANK_TIMER].expires = 0;
                timer_table[BLANK_TIMER].expires = 0;
                timer_active |= 1<<BLANK_TIMER;
                timer_active |= 1<<BLANK_TIMER;
        } else if (blankinterval) {
        } else if (blankinterval) {
                timer_table[BLANK_TIMER].expires = jiffies + blankinterval;
                timer_table[BLANK_TIMER].expires = jiffies + blankinterval;
                timer_active |= 1<<BLANK_TIMER;
                timer_active |= 1<<BLANK_TIMER;
        }
        }
}
}
 
 
/* DPC: New version of console_print using putcs */
/* DPC: New version of console_print using putcs */
 
 
void console_print(const char * b)
void console_print(const char * b)
{
{
   int currcons = fg_console;
   int currcons = fg_console;
   unsigned char c;
   unsigned char c;
   const char *start = b;
   const char *start = b;
   ushort count      = 0;
   ushort count      = 0;
   ushort myx        = x;
   ushort myx        = x;
   static int printing = 0;
   static int printing = 0;
 
 
   if (!printable || printing)
   if (!printable || printing)
           return;       /* console not yet initialized */
           return;       /* console not yet initialized */
   printing = 1;
   printing = 1;
 
 
   if (kmsg_redirect && vc_cons_allocated(kmsg_redirect - 1))
   if (kmsg_redirect && vc_cons_allocated(kmsg_redirect - 1))
           currcons = kmsg_redirect - 1;
           currcons = kmsg_redirect - 1;
 
 
   if (!vc_cons_allocated(currcons)) {
   if (!vc_cons_allocated(currcons)) {
           /* impossible */
           /* impossible */
           printk("console_print: tty %d not allocated ??\n", currcons+1);
           printk("console_print: tty %d not allocated ??\n", currcons+1);
           printing = 0;
           printing = 0;
           return;
           return;
   }
   }
 
 
   /* undraw cursor first */
   /* undraw cursor first */
   hide_cursor(currcons);
   hide_cursor(currcons);
 
 
   /* Contrived structure to try to emulate original need_wrap behaviour
   /* Contrived structure to try to emulate original need_wrap behaviour
    * Problems caused when we have need_wrap set on '\n' character */
    * Problems caused when we have need_wrap set on '\n' character */
 
 
   while ((c = *(b++)) != 0) {
   while ((c = *(b++)) != 0) {
       if (c == 10 || c == 13 || c == 8 || need_wrap) {
       if (c == 10 || c == 13 || c == 8 || need_wrap) {
           if ((count = b - start - 1) > 0) {
           if ((count = b - start - 1) > 0) {
               sw->con_putcs(vc_cons[currcons].d, start, count ,
               sw->con_putcs(vc_cons[currcons].d, start, count ,
                             y, x);
                             y, x);
               x += count;
               x += count;
               if (need_wrap)
               if (need_wrap)
                 x--;
                 x--;
           }
           }
 
 
           if (c == 8) {        /* backspace */
           if (c == 8) {        /* backspace */
               bs(currcons);
               bs(currcons);
               start = b;
               start = b;
               myx = x;
               myx = x;
               continue;
               continue;
           }
           }
           if (c != 13)
           if (c != 13)
               lf(currcons);
               lf(currcons);
           cr(currcons);
           cr(currcons);
 
 
           if (c == 10 || c == 13) {
           if (c == 10 || c == 13) {
               start = b; myx = x; continue;
               start = b; myx = x; continue;
           }
           }
 
 
           start = b-1; myx = x;
           start = b-1; myx = x;
       }
       }
 
 
       *pos = c | (attr << 8);
       *pos = c | (attr << 8);
       if (myx == cols - 1) {
       if (myx == cols - 1) {
           need_wrap = 1;
           need_wrap = 1;
           continue;
           continue;
       }
       }
       pos++;
       pos++;
       myx++;
       myx++;
   }
   }
 
 
   if ((count = b - start -1) > 0) {
   if ((count = b - start -1) > 0) {
       sw->con_putcs(vc_cons[currcons].d, start, count ,
       sw->con_putcs(vc_cons[currcons].d, start, count ,
                     y, x);
                     y, x);
       x += count;
       x += count;
       if (x == cols)
       if (x == cols)
         {
         {
           x--;
           x--;
           need_wrap = 1;
           need_wrap = 1;
         }
         }
   }
   }
 
 
   set_cursor(currcons);
   set_cursor(currcons);
   poke_blanked_console();
   poke_blanked_console();
   printing = 0;
   printing = 0;
}
}
 
 
 
 
/*
/*
 * con_throttle and con_unthrottle are only used for
 * con_throttle and con_unthrottle are only used for
 * paste_selection(), which has to stuff in a large number of
 * paste_selection(), which has to stuff in a large number of
 * characters...
 * characters...
 */
 */
static void con_throttle(struct tty_struct *tty)
static void con_throttle(struct tty_struct *tty)
{
{
}
}
 
 
static void con_unthrottle(struct tty_struct *tty)
static void con_unthrottle(struct tty_struct *tty)
{
{
        struct vt_struct *vt = (struct vt_struct *) tty->driver_data;
        struct vt_struct *vt = (struct vt_struct *) tty->driver_data;
 
 
        wake_up_interruptible(&vt->paste_wait);
        wake_up_interruptible(&vt->paste_wait);
}
}
 
 
static void vc_init(unsigned int currcons, int do_clear)
static void vc_init(unsigned int currcons, int do_clear)
{
{
        long base = (long) vc_scrbuf[currcons];
        long base = (long) vc_scrbuf[currcons];
 
 
        pos = (unsigned short *)(origin = (ulong)video_mem_start = base);
        pos = (unsigned short *)(origin = (ulong)video_mem_start = base);
        scr_end = base + screenbuf_size;
        scr_end = base + screenbuf_size;
        video_mem_end = base + screenbuf_size;
        video_mem_end = base + screenbuf_size;
        reset_vc(currcons);
        reset_vc(currcons);
        def_color       = 0x07;   /* white */
        def_color       = 0x07;   /* white */
        ulcolor         = 0x0f;   /* bold white */
        ulcolor         = 0x0f;   /* bold white */
        halfcolor       = 0x08;   /* grey */
        halfcolor       = 0x08;   /* grey */
        vt_cons[currcons]->paste_wait = 0;
        vt_cons[currcons]->paste_wait = 0;
        reset_terminal(currcons, do_clear);
        reset_terminal(currcons, do_clear);
}
}
 
 
/*
/*
 * This is the console switching bottom half handler.
 * This is the console switching bottom half handler.
 *
 *
 * Doing console switching in a bottom half handler allows
 * Doing console switching in a bottom half handler allows
 * us to do the switches asynchronously (needed when we want
 * us to do the switches asynchronously (needed when we want
 * to switch due to a keyboard interrupt), while still giving
 * to switch due to a keyboard interrupt), while still giving
 * us the option to easily disable it to avoid races when we
 * us the option to easily disable it to avoid races when we
 * need to write to the console.
 * need to write to the console.
 */
 */
static void console_bh(void)
static void console_bh(void)
{
{
        if (want_console >= 0) {
        if (want_console >= 0) {
                if (want_console != fg_console) {
                if (want_console != fg_console) {
                        change_console(want_console);
                        change_console(want_console);
                        /* we only changed when the console had already
                        /* we only changed when the console had already
                           been allocated - a new console is not created
                           been allocated - a new console is not created
                           in an interrupt routine */
                           in an interrupt routine */
                }
                }
                want_console = -1;
                want_console = -1;
        }
        }
        if (do_poke_blanked_console) { /* do not unblank for a LED change */
        if (do_poke_blanked_console) { /* do not unblank for a LED change */
                do_poke_blanked_console = 0;
                do_poke_blanked_console = 0;
                poke_blanked_console();
                poke_blanked_console();
        }
        }
}
}
 
 
/*
/*
 *  unsigned long con_init(unsigned long);
 *  unsigned long con_init(unsigned long);
 *
 *
 * This routine initializes console interrupts, and does nothing
 * This routine initializes console interrupts, and does nothing
 * else. If you want the screen to clear, call tty_write with
 * else. If you want the screen to clear, call tty_write with
 * the appropriate escape-sequence.
 * the appropriate escape-sequence.
 *
 *
 * Reads the information preserved by setup.s to determine the current display
 * Reads the information preserved by setup.s to determine the current display
 * type and sets everything accordingly.
 * type and sets everything accordingly.
 */
 */
unsigned long con_init(unsigned long kmem_start)
unsigned long con_init(unsigned long kmem_start)
{
{
        char *display_desc = "????";
        char *display_desc = "????";
        unsigned int currcons = 0;
        unsigned int currcons = 0;
        extern int serial_debug;
        extern int serial_debug;
 
 
        memset(&console_driver, 0, sizeof(struct tty_driver));
        memset(&console_driver, 0, sizeof(struct tty_driver));
        console_driver.magic = TTY_DRIVER_MAGIC;
        console_driver.magic = TTY_DRIVER_MAGIC;
        console_driver.name = "tty";
        console_driver.name = "tty";
        console_driver.name_base = 1;
        console_driver.name_base = 1;
        console_driver.major = TTY_MAJOR;
        console_driver.major = TTY_MAJOR;
        console_driver.minor_start = 1;
        console_driver.minor_start = 1;
        console_driver.num = MAX_NR_CONSOLES;
        console_driver.num = MAX_NR_CONSOLES;
        console_driver.type = TTY_DRIVER_TYPE_CONSOLE;
        console_driver.type = TTY_DRIVER_TYPE_CONSOLE;
        console_driver.init_termios = tty_std_termios;
        console_driver.init_termios = tty_std_termios;
        console_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
        console_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
        console_driver.refcount = &console_refcount;
        console_driver.refcount = &console_refcount;
        console_driver.table = console_table;
        console_driver.table = console_table;
        console_driver.termios = console_termios;
        console_driver.termios = console_termios;
        console_driver.termios_locked = console_termios_locked;
        console_driver.termios_locked = console_termios_locked;
 
 
        console_driver.open = con_open;
        console_driver.open = con_open;
        console_driver.write = con_write;
        console_driver.write = con_write;
        console_driver.write_room = con_write_room;
        console_driver.write_room = con_write_room;
        console_driver.chars_in_buffer = con_chars_in_buffer;
        console_driver.chars_in_buffer = con_chars_in_buffer;
        console_driver.ioctl = vt_ioctl;
        console_driver.ioctl = vt_ioctl;
        console_driver.stop = con_stop;
        console_driver.stop = con_stop;
        console_driver.start = con_start;
        console_driver.start = con_start;
        console_driver.throttle = con_throttle;
        console_driver.throttle = con_throttle;
        console_driver.unthrottle = con_unthrottle;
        console_driver.unthrottle = con_unthrottle;
 
 
        if (tty_register_driver(&console_driver))
        if (tty_register_driver(&console_driver))
                panic("Couldn't register console driver\n");
                panic("Couldn't register console driver\n");
 
 
        kmem_start = conswitchp->con_startup (kmem_start, &display_desc);
        kmem_start = conswitchp->con_startup (kmem_start, &display_desc);
 
 
        timer_table[BLANK_TIMER].fn = blank_screen;
        timer_table[BLANK_TIMER].fn = blank_screen;
        timer_table[BLANK_TIMER].expires = 0;
        timer_table[BLANK_TIMER].expires = 0;
        if (blankinterval) {
        if (blankinterval) {
                timer_table[BLANK_TIMER].expires = jiffies + blankinterval;
                timer_table[BLANK_TIMER].expires = jiffies + blankinterval;
                timer_active |= 1<<BLANK_TIMER;
                timer_active |= 1<<BLANK_TIMER;
        }
        }
 
 
        /* Due to kmalloc roundup allocating statically is more efficient -
        /* Due to kmalloc roundup allocating statically is more efficient -
           so provide MIN_NR_CONSOLES for people with very little memory */
           so provide MIN_NR_CONSOLES for people with very little memory */
        for (currcons = 0; currcons < MIN_NR_CONSOLES; currcons++) {
        for (currcons = 0; currcons < MIN_NR_CONSOLES; currcons++) {
                vc_cons[currcons].d = (struct vc_data *) kmem_start;
                vc_cons[currcons].d = (struct vc_data *) kmem_start;
                kmem_start += sizeof(struct vc_data);
                kmem_start += sizeof(struct vc_data);
                vt_cons[currcons] = (struct vt_struct *) kmem_start;
                vt_cons[currcons] = (struct vt_struct *) kmem_start;
                kmem_start += sizeof(struct vt_struct);
                kmem_start += sizeof(struct vt_struct);
 
 
                /* ++Geert: sw->con_init determines console size */
                /* ++Geert: sw->con_init determines console size */
                sw = conswitchp;
                sw = conswitchp;
                cons_num = currcons;
                cons_num = currcons;
                sw->con_init (vc_cons[currcons].d);
                sw->con_init (vc_cons[currcons].d);
                size_row = cols<<1;
                size_row = cols<<1;
                screenbuf_size = rows*size_row;
                screenbuf_size = rows*size_row;
 
 
                vc_scrbuf[currcons] = (unsigned short *) kmem_start;
                vc_scrbuf[currcons] = (unsigned short *) kmem_start;
                kmem_start += screenbuf_size;
                kmem_start += screenbuf_size;
                kmalloced = 0;
                kmalloced = 0;
                vc_init(currcons, currcons);
                vc_init(currcons, currcons);
        }
        }
 
 
        currcons = fg_console = 0;
        currcons = fg_console = 0;
 
 
        gotoxy(currcons,0,0);
        gotoxy(currcons,0,0);
        csi_J(currcons, 0);
        csi_J(currcons, 0);
        printable = 1;
        printable = 1;
        update_screen(fg_console);
        update_screen(fg_console);
        sw->con_cursor(vc_cons[currcons].d, CM_DRAW);
        sw->con_cursor(vc_cons[currcons].d, CM_DRAW);
        printable = 1;
        printable = 1;
 
 
        /* If "serdebug" cmd line option was present, don't register for printk */
        /* If "serdebug" cmd line option was present, don't register for printk */
        if (!serial_debug)
        if (!serial_debug)
                register_console(console_print);
                register_console(console_print);
        printk("Console: %s %s %ldx%ld, %d virtual console%s (max %d)\n",
        printk("Console: %s %s %ldx%ld, %d virtual console%s (max %d)\n",
                can_do_color ? "colour":"mono",
                can_do_color ? "colour":"mono",
                display_desc,
                display_desc,
                cols,rows,
                cols,rows,
                MIN_NR_CONSOLES, (MIN_NR_CONSOLES == 1) ? "" : "s", MAX_NR_CONSOLES);
                MIN_NR_CONSOLES, (MIN_NR_CONSOLES == 1) ? "" : "s", MAX_NR_CONSOLES);
 
 
        init_bh(CONSOLE_BH, console_bh);
        init_bh(CONSOLE_BH, console_bh);
        return kmem_start;
        return kmem_start;
}
}
 
 
void do_blank_screen(int nopowersave)
void do_blank_screen(int nopowersave)
{
{
        int currcons;
        int currcons;
 
 
        if (console_blanked)
        if (console_blanked)
                return;
                return;
 
 
        if (!vc_cons_allocated(fg_console)) {
        if (!vc_cons_allocated(fg_console)) {
                /* impossible */
                /* impossible */
                printk("blank_screen: tty %d not allocated ??\n", fg_console+1);
                printk("blank_screen: tty %d not allocated ??\n", fg_console+1);
                return;
                return;
        }
        }
 
 
        /* don't blank graphics */
        /* don't blank graphics */
        if (vt_cons[fg_console]->vc_mode == KD_TEXT) {
        if (vt_cons[fg_console]->vc_mode == KD_TEXT) {
                timer_active &= ~(1<<BLANK_TIMER);
                timer_active &= ~(1<<BLANK_TIMER);
                timer_table[BLANK_TIMER].fn = unblank_screen;
                timer_table[BLANK_TIMER].fn = unblank_screen;
 
 
                /* try not to lose information by blanking,
                /* try not to lose information by blanking,
                   and not to waste memory */
                   and not to waste memory */
                currcons = fg_console;
                currcons = fg_console;
                has_scrolled = 0;
                has_scrolled = 0;
                sw->con_blank (1);
                sw->con_blank (1);
        }
        }
        else
        else
                hide_cursor(fg_console);
                hide_cursor(fg_console);
        console_blanked = fg_console + 1;
        console_blanked = fg_console + 1;
}
}
 
 
void do_unblank_screen(void)
void do_unblank_screen(void)
{
{
        int currcons;
        int currcons;
 
 
        if (!console_blanked)
        if (!console_blanked)
                return;
                return;
        if (!vc_cons_allocated(fg_console)) {
        if (!vc_cons_allocated(fg_console)) {
                /* impossible */
                /* impossible */
                printk("unblank_screen: tty %d not allocated ??\n", fg_console+1);
                printk("unblank_screen: tty %d not allocated ??\n", fg_console+1);
                return;
                return;
        }
        }
        timer_table[BLANK_TIMER].fn = blank_screen;
        timer_table[BLANK_TIMER].fn = blank_screen;
        if (blankinterval) {
        if (blankinterval) {
                timer_table[BLANK_TIMER].expires = jiffies + blankinterval;
                timer_table[BLANK_TIMER].expires = jiffies + blankinterval;
                timer_active |= 1<<BLANK_TIMER;
                timer_active |= 1<<BLANK_TIMER;
        }
        }
 
 
        currcons = fg_console;
        currcons = fg_console;
        console_blanked = 0;
        console_blanked = 0;
        if (sw->con_blank (0))
        if (sw->con_blank (0))
                /* Low-level driver cannot restore -> do it ourselves */
                /* Low-level driver cannot restore -> do it ourselves */
                update_screen( fg_console );
                update_screen( fg_console );
        set_cursor (fg_console);
        set_cursor (fg_console);
}
}
 
 
void update_screen(int new_console)
void update_screen(int new_console)
{
{
        int currcons = fg_console;
        int currcons = fg_console;
        int xx, yy, startx, attr_save;
        int xx, yy, startx, attr_save;
        char buf[256], *bufp;
        char buf[256], *bufp;
        unsigned short *p;
        unsigned short *p;
        static int lock = 0;
        static int lock = 0;
 
 
        if (/* new_console == fg_console || */ lock)
        if (/* new_console == fg_console || */ lock)
                return;
                return;
        if (!vc_cons_allocated(new_console)) {
        if (!vc_cons_allocated(new_console)) {
                /* strange ... */
                /* strange ... */
                printk("update_screen: tty %d not allocated ??\n", new_console+1);
                printk("update_screen: tty %d not allocated ??\n", new_console+1);
                return;
                return;
        }
        }
        lock = 1;
        lock = 1;
 
 
        clear_selection();
        clear_selection();
 
 
        currcons = fg_console = new_console;
        currcons = fg_console = new_console;
        sw->con_cursor (vc_cons[currcons].d, CM_ERASE);
        sw->con_cursor (vc_cons[currcons].d, CM_ERASE);
        sw->con_switch (vc_cons[new_console].d);
        sw->con_switch (vc_cons[new_console].d);
        /* Update the screen contents */
        /* Update the screen contents */
        p = video_mem_start;
        p = video_mem_start;
        attr_save = attr;
        attr_save = attr;
        for (yy = 0; yy < rows; yy++)
        for (yy = 0; yy < rows; yy++)
          {
          {
            bufp = buf;
            bufp = buf;
            for (startx = xx = 0; xx < cols; xx++)
            for (startx = xx = 0; xx < cols; xx++)
              {
              {
                if (attr != ((*p >> 8) & 0xff))
                if (attr != ((*p >> 8) & 0xff))
                  {
                  {
                    if (bufp > buf)
                    if (bufp > buf)
                      sw->con_putcs (vc_cons[currcons].d, buf, bufp - buf,
                      sw->con_putcs (vc_cons[currcons].d, buf, bufp - buf,
                                     yy, startx);
                                     yy, startx);
                    startx = xx;
                    startx = xx;
                    bufp = buf;
                    bufp = buf;
                    attr = (*p >> 8) & 0xff;
                    attr = (*p >> 8) & 0xff;
                  }
                  }
                *bufp++ = *p++;
                *bufp++ = *p++;
                if (bufp == buf + sizeof (buf))
                if (bufp == buf + sizeof (buf))
                  {
                  {
                    sw->con_putcs (vc_cons[currcons].d, buf, bufp - buf,
                    sw->con_putcs (vc_cons[currcons].d, buf, bufp - buf,
                                   yy, startx);
                                   yy, startx);
                    startx = xx + 1;
                    startx = xx + 1;
                    bufp = buf;
                    bufp = buf;
                  }
                  }
              }
              }
            if (bufp > buf)
            if (bufp > buf)
              sw->con_putcs (vc_cons[currcons].d, buf, bufp - buf,
              sw->con_putcs (vc_cons[currcons].d, buf, bufp - buf,
                             yy, startx);
                             yy, startx);
          }
          }
        set_cursor (currcons);
        set_cursor (currcons);
        attr = attr_save;
        attr = attr_save;
        set_leds();
        set_leds();
        compute_shiftstate();
        compute_shiftstate();
        lock = 0;
        lock = 0;
}
}
 
 
/*
/*
 * If a blank_screen is due to a timer, then a power save is allowed.
 * If a blank_screen is due to a timer, then a power save is allowed.
 * If it is related to console_switching, then avoid vesa_blank().
 * If it is related to console_switching, then avoid vesa_blank().
 */
 */
static void blank_screen(void)
static void blank_screen(void)
{
{
        do_blank_screen(0);
        do_blank_screen(0);
}
}
 
 
static void unblank_screen(void)
static void unblank_screen(void)
{
{
        do_unblank_screen();
        do_unblank_screen();
}
}
 
 
/*
/*
 * Allocate the console screen memory.
 * Allocate the console screen memory.
 */
 */
int con_open(struct tty_struct *tty, struct file * filp)
int con_open(struct tty_struct *tty, struct file * filp)
{
{
        unsigned int currcons;
        unsigned int currcons;
        int i;
        int i;
 
 
        currcons = MINOR(tty->device) - tty->driver.minor_start;
        currcons = MINOR(tty->device) - tty->driver.minor_start;
 
 
        i = vc_allocate(currcons);
        i = vc_allocate(currcons);
        if (i)
        if (i)
                return i;
                return i;
 
 
        vt_cons[currcons]->vc_num = currcons;
        vt_cons[currcons]->vc_num = currcons;
        tty->driver_data = vt_cons[currcons];
        tty->driver_data = vt_cons[currcons];
 
 
        if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
        if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
                tty->winsize.ws_row = rows;
                tty->winsize.ws_row = rows;
                tty->winsize.ws_col = cols;
                tty->winsize.ws_col = cols;
        }
        }
 
 
        return 0;
        return 0;
}
}
 
 
/*
/*
 * PIO_FONT support.
 * PIO_FONT support.
 *
 *
 * The font loading code goes back to the codepage package by
 * The font loading code goes back to the codepage package by
 * Joel Hoffman (joel@wam.umd.edu). (He reports that the original
 * Joel Hoffman (joel@wam.umd.edu). (He reports that the original
 * reference is: "From: p. 307 of _Programmer's Guide to PC & PS/2
 * reference is: "From: p. 307 of _Programmer's Guide to PC & PS/2
 * Video Systems_ by Richard Wilton. 1987.  Microsoft Press".)
 * Video Systems_ by Richard Wilton. 1987.  Microsoft Press".)
 *
 *
 * Change for certain monochrome monitors by Yury Shevchuck
 * Change for certain monochrome monitors by Yury Shevchuck
 * (sizif@botik.yaroslavl.su).
 * (sizif@botik.yaroslavl.su).
 */
 */
 
 
#define colourmap ((char *)0xa0000)
#define colourmap ((char *)0xa0000)
/* Pauline Middelink <middelin@polyware.iaf.nl> reports that we
/* Pauline Middelink <middelin@polyware.iaf.nl> reports that we
   should use 0xA0000 for the bwmap as well.. */
   should use 0xA0000 for the bwmap as well.. */
#define blackwmap ((char *)0xa0000)
#define blackwmap ((char *)0xa0000)
#define cmapsz 8192
#define cmapsz 8192
#define seq_port_reg (0x3c4)
#define seq_port_reg (0x3c4)
#define seq_port_val (0x3c5)
#define seq_port_val (0x3c5)
#define gr_port_reg (0x3ce)
#define gr_port_reg (0x3ce)
#define gr_port_val (0x3cf)
#define gr_port_val (0x3cf)
 
 
static int set_get_font(char * arg, int set)
static int set_get_font(char * arg, int set)
{
{
#ifdef CAN_LOAD_EGA_FONTS
#ifdef CAN_LOAD_EGA_FONTS
        int i;
        int i;
        char *charmap;
        char *charmap;
        int beg;
        int beg;
 
 
        /* no use to "load" CGA... */
        /* no use to "load" CGA... */
 
 
        if (video_type == VIDEO_TYPE_EGAC) {
        if (video_type == VIDEO_TYPE_EGAC) {
                charmap = colourmap;
                charmap = colourmap;
                beg = 0x0e;
                beg = 0x0e;
        } else if (video_type == VIDEO_TYPE_EGAM) {
        } else if (video_type == VIDEO_TYPE_EGAM) {
                charmap = blackwmap;
                charmap = blackwmap;
                beg = 0x0a;
                beg = 0x0a;
        } else
        } else
                return -EINVAL;
                return -EINVAL;
 
 
        i = verify_area(set ? VERIFY_READ : VERIFY_WRITE, (void *)arg, cmapsz);
        i = verify_area(set ? VERIFY_READ : VERIFY_WRITE, (void *)arg, cmapsz);
        if (i)
        if (i)
                return i;
                return i;
 
 
        cli();
        cli();
        outb_p( 0x00, seq_port_reg );   /* First, the sequencer */
        outb_p( 0x00, seq_port_reg );   /* First, the sequencer */
        outb_p( 0x01, seq_port_val );   /* Synchronous reset */
        outb_p( 0x01, seq_port_val );   /* Synchronous reset */
        outb_p( 0x02, seq_port_reg );
        outb_p( 0x02, seq_port_reg );
        outb_p( 0x04, seq_port_val );   /* CPU writes only to map 2 */
        outb_p( 0x04, seq_port_val );   /* CPU writes only to map 2 */
        outb_p( 0x04, seq_port_reg );
        outb_p( 0x04, seq_port_reg );
        outb_p( 0x07, seq_port_val );   /* Sequential addressing */
        outb_p( 0x07, seq_port_val );   /* Sequential addressing */
        outb_p( 0x00, seq_port_reg );
        outb_p( 0x00, seq_port_reg );
        outb_p( 0x03, seq_port_val );   /* Clear synchronous reset */
        outb_p( 0x03, seq_port_val );   /* Clear synchronous reset */
 
 
        outb_p( 0x04, gr_port_reg );    /* Now, the graphics controller */
        outb_p( 0x04, gr_port_reg );    /* Now, the graphics controller */
        outb_p( 0x02, gr_port_val );    /* select map 2 */
        outb_p( 0x02, gr_port_val );    /* select map 2 */
        outb_p( 0x05, gr_port_reg );
        outb_p( 0x05, gr_port_reg );
        outb_p( 0x00, gr_port_val );    /* disable odd-even addressing */
        outb_p( 0x00, gr_port_val );    /* disable odd-even addressing */
        outb_p( 0x06, gr_port_reg );
        outb_p( 0x06, gr_port_reg );
        outb_p( 0x00, gr_port_val );    /* map start at A000:0000 */
        outb_p( 0x00, gr_port_val );    /* map start at A000:0000 */
        sti();
        sti();
 
 
        if (set)
        if (set)
                memcpy_fromfs (charmap, arg, cmapsz);
                memcpy_fromfs (charmap, arg, cmapsz);
        else
        else
                memcpy_tofs (arg, charmap, cmapsz);
                memcpy_tofs (arg, charmap, cmapsz);
 
 
        cli();
        cli();
        outb_p( 0x00, seq_port_reg );   /* First, the sequencer */
        outb_p( 0x00, seq_port_reg );   /* First, the sequencer */
        outb_p( 0x01, seq_port_val );   /* Synchronous reset */
        outb_p( 0x01, seq_port_val );   /* Synchronous reset */
        outb_p( 0x02, seq_port_reg );
        outb_p( 0x02, seq_port_reg );
        outb_p( 0x03, seq_port_val );   /* CPU writes to maps 0 and 1 */
        outb_p( 0x03, seq_port_val );   /* CPU writes to maps 0 and 1 */
        outb_p( 0x04, seq_port_reg );
        outb_p( 0x04, seq_port_reg );
        outb_p( 0x03, seq_port_val );   /* odd-even addressing */
        outb_p( 0x03, seq_port_val );   /* odd-even addressing */
        outb_p( 0x00, seq_port_reg );
        outb_p( 0x00, seq_port_reg );
        outb_p( 0x03, seq_port_val );   /* clear synchronous reset */
        outb_p( 0x03, seq_port_val );   /* clear synchronous reset */
 
 
        outb_p( 0x04, gr_port_reg );    /* Now, the graphics controller */
        outb_p( 0x04, gr_port_reg );    /* Now, the graphics controller */
        outb_p( 0x00, gr_port_val );    /* select map 0 for CPU */
        outb_p( 0x00, gr_port_val );    /* select map 0 for CPU */
        outb_p( 0x05, gr_port_reg );
        outb_p( 0x05, gr_port_reg );
        outb_p( 0x10, gr_port_val );    /* enable even-odd addressing */
        outb_p( 0x10, gr_port_val );    /* enable even-odd addressing */
        outb_p( 0x06, gr_port_reg );
        outb_p( 0x06, gr_port_reg );
        outb_p( beg, gr_port_val );     /* map starts at b800:0 or b000:0 */
        outb_p( beg, gr_port_val );     /* map starts at b800:0 or b000:0 */
        sti();
        sti();
 
 
        return 0;
        return 0;
#else
#else
        return -EINVAL;
        return -EINVAL;
#endif
#endif
}
}
 
 
/*
/*
 * Load palette into the EGA/VGA DAC registers. arg points to a colour
 * Load palette into the EGA/VGA DAC registers. arg points to a colour
 * map, 3 bytes per colour, 16 colours, range from 0 to 255.
 * map, 3 bytes per colour, 16 colours, range from 0 to 255.
 */
 */
 
 
int con_set_cmap (unsigned char *arg)
int con_set_cmap (unsigned char *arg)
{
{
        return -EINVAL;
        return -EINVAL;
}
}
 
 
int con_get_cmap (unsigned char *arg)
int con_get_cmap (unsigned char *arg)
{
{
        return -EINVAL;
        return -EINVAL;
}
}
 
 
void reset_palette(int currcons)
void reset_palette(int currcons)
{
{
}
}
 
 
void set_palette(void)
void set_palette(void)
{
{
}
}
 
 
/*
/*
 * Load font into the EGA/VGA character generator. arg points to a 8192
 * Load font into the EGA/VGA character generator. arg points to a 8192
 * byte map, 32 bytes per character. Only first H of them are used for
 * byte map, 32 bytes per character. Only first H of them are used for
 * 8xH fonts (0 < H <= 32).
 * 8xH fonts (0 < H <= 32).
 */
 */
 
 
int con_set_font (char *arg)
int con_set_font (char *arg)
{
{
        hashtable_contents_valid = 0;
        hashtable_contents_valid = 0;
        return set_get_font (arg,1);
        return set_get_font (arg,1);
}
}
 
 
int con_get_font (char *arg)
int con_get_font (char *arg)
{
{
        return set_get_font (arg,0);
        return set_get_font (arg,0);
}
}
 
 
/*
/*
 * Adjust the screen to fit a font of a certain height
 * Adjust the screen to fit a font of a certain height
 *
 *
 * Returns < 0 for error, 0 if nothing changed, and the number
 * Returns < 0 for error, 0 if nothing changed, and the number
 * of lines on the adjusted console if changed.
 * of lines on the adjusted console if changed.
 */
 */
int con_adjust_height(unsigned long fontheight)
int con_adjust_height(unsigned long fontheight)
{
{
        return -EINVAL;
        return -EINVAL;
}
}
 
 
void set_vesa_blanking(int arg)
void set_vesa_blanking(int arg)
{
{
}
}
 
 
unsigned long get_video_num_lines(unsigned int currcons)
unsigned long get_video_num_lines(unsigned int currcons)
{
{
        return(rows);
        return(rows);
}
}
 
 
unsigned long get_video_num_columns(unsigned int currcons)
unsigned long get_video_num_columns(unsigned int currcons)
{
{
        return(cols);
        return(cols);
}
}
 
 
unsigned long get_video_size_row(unsigned int currcons)
unsigned long get_video_size_row(unsigned int currcons)
{
{
        return(size_row);
        return(size_row);
}
}
 
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.