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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [arch/] [armnommu/] [drivers/] [char/] [vt_kern.h] - Blame information for rev 199

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1 199 simons
/*
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 * linux/arch/arm/drivers/char/vt.h
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 *
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 * Virtual Terminal bits...
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 */
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#ifndef _VT_KERN_H
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#define _VT_KERN_H
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#include <linux/vt.h>
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#define NPAR 16
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#define SEL_BUFFER_SIZE 4096
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struct vc_state {
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    unsigned char       forecol;                /* foreground                   */
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    unsigned char       backcol;                /* background                   */
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    unsigned char       x;                      /* x position                   */
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    unsigned char       y;                      /* y position                   */
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#define FLG_BOLD        0x01
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#define FLG_ITALIC      0x02
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#define FLG_UNDERLINE   0x04
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#define FLG_FLASH       0x08
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#define FLG_INVERSE     0x10
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#define FLG_CHRSET      0x20
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    unsigned char       flags;                  /* special flags                */
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    unsigned char       G0_charset;             /* G0 character set             */
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    unsigned char       G1_charset;             /* G1 character set             */
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    unsigned char       __unused;               /* unused                       */
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};
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extern struct con_struct *___GCC_HACK_TO_STOP_ITS_SILLY_COMPLAINTS___;
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struct console_driver {
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    void (*gotoxy)(struct con_struct *vcd);
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    void (*scroll_up)(struct con_struct *vcd,unsigned int,unsigned int,unsigned int);
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    void (*scroll_down)(struct con_struct *vcd,unsigned int,unsigned int,unsigned int);
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    unsigned long *(*buffer_pos)(struct con_struct *vcd,unsigned int offset);
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    void (*delete_char)(struct con_struct *vcd,unsigned int);
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    void (*insert_char)(struct con_struct *vcd,unsigned int);
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    void (*put_char)(struct con_struct *vcd,unsigned long);
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    void (*write_char)(struct con_struct *vcd,unsigned long);
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    void (*erase)(struct con_struct *vcd,unsigned char,unsigned char,unsigned char,unsigned char);
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};
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struct con_struct {
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    struct {
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        unsigned int    origin;                 /* address of top-left          */
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        unsigned int    pos;                    /* current position into screen */
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        unsigned long   *palette_entries;       /* Current palette              */
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        unsigned int    cursoron;               /* Cursor on count              */
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    } screen;
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    struct {
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        unsigned long   *buffer;                /* pointer to actual buffer     */
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        unsigned int    size;                   /* size of buffer               */
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        unsigned int    pos;                    /* current position into buffer */
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        unsigned char   kmalloced       : 1;    /* buffer kmalloced             */
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    } buffer;
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    struct console_driver driver;
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    /*
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     * State
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     */
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    struct vc_state     curstate;               /* current state                */
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    struct vc_state     savedstate;             /* saved state                  */
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    unsigned long       combined_state;         /* combined state               */
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    unsigned long       cached_backcolwrd;      /* cached background colour     */
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    unsigned long       tab_stop[5];            /* tab stops                    */
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    unsigned short      *translate;             /* translation table            */
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    unsigned char       top;                    /* top of scrollable region     */
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    unsigned char       bottom;                 /* bottom of scrollable region  */
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    unsigned char       def_forecol;            /* default foreground           */
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    unsigned char       def_backcol;            /* default background           */
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     unsigned char      cursor_count;           /* on/off cursor count (int)    */
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      unsigned char     disp_ctrl       : 1;    /* display control characters   */
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      unsigned char     toggle_meta     : 1;    /* toggle high bit              */
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      unsigned char     decscnm         : 1;    /* screen mode                  */
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      unsigned char     decom           : 1;    /* origin mode                  */
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      unsigned char     decawm          : 1;    /* autowrap mode                */
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      unsigned char     deccm           : 1;    /* cursor visible               */
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      unsigned char     decim           : 1;    /* insert mode                  */
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      unsigned char     deccolm         : 1;    /* 80/132 col mode              */
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      unsigned char     report_mouse    : 2;    /* mouse reporting?             */
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      unsigned char     need_wrap       : 1;    /* need to wrap                 */
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      unsigned char     ques            : 1;
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    /*
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     * UTF
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     */
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      unsigned char     utf             : 1;    /* Unicode UTF-8 encoding       */
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     unsigned char      utf_count;              /* UTF character count          */
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    unsigned long       utf_char;               /* UTF character built          */
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    unsigned long       npar;                   /* number of params             */
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    unsigned long       par[NPAR];              /* params                       */
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    unsigned int        bell_pitch;             /* console bell pitch           */
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    unsigned int        bell_duration;          /* console bell duration        */
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    unsigned char       state;                  /* Current escape state         */
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};
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struct vt_data {
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    unsigned char       numcolumns;             /* number of columns            */
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    unsigned char       numrows;                /* number of rows               */
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    unsigned char       __unused[2];
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    struct vt           *fgconsole;             /* displayed VC                 */
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    struct vt           *blanked;               /* blanked VC                   */
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    struct {
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        unsigned char   bitsperpix;             /* bits per pixel               */
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        unsigned char   bytespercharh;          /* horiz. bytes a char takes    */
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        unsigned char   bytespercharv;          /* vert. bytes a char takes     */
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        unsigned char   __unused[1];
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        unsigned long   sizerow;                /* size of a row of chars       */
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        unsigned long   totsize;                /* total character size         */
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        unsigned long   memstart;               /* video mem start              */
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        unsigned long   memsize;                /* video mem size               */
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        unsigned long   memend;                 /* video mem end                */
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        unsigned long   blankinterval;          /* blank interval               */
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    } screen;
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    struct {
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        unsigned long   *buffer;                /* address of screen buffer     */
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        unsigned long   totsize;                /* total buffer size            */
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        unsigned long   lastorigin;             /* last origin address          */
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        unsigned long   origin;                 /* current origin               */
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        unsigned long   sizerow;                /* size of a row of chars       */
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    } buffer;
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    struct {
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        struct vt       *vt;                    /* selected VC                  */
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        int             start;                  /* start offset                 */
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        int             end;                    /* end offset                   */
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        int             length;                 /* buffer length                */
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        char            *buffer;                /* buffer                       */
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    } select;
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};
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extern struct vt_data vtdata;
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extern struct tty_driver console_driver;
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struct vt_struct {
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    unsigned char       vc_mode;                /* hmm...                       */
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    unsigned char       vc_kbdraw;
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    unsigned char       vc_kbde0;
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    unsigned char       vc_kbdleds;
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    struct vt_mode      vt_mode;
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    pid_t               vt_pid;
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    struct vt           *vt_newvt;              /* VT to switch to..            */
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    struct wait_queue   *paste_wait;
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    unsigned char *     xmit_buf;
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    unsigned int        xmit_cnt;
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    unsigned int        xmit_out;
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    unsigned int        xmit_in;
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    unsigned int        xmitting;
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};
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struct vt {
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    /*
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     * Per-console data
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     */
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    struct con_struct *vcd;
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    /*
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     * Keyboard stuff
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     */
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    struct kbd_struct *kbd;
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    /*
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     * VT stuff
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     */
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    struct vt_struct *vtd;
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    /*
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     * tty that this VT is connected to
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     */
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    struct tty_struct **tty;
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    /*
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     * tty number of this vt struct
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     */
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    unsigned char num;
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    /*
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     * is this vt allocated and initialised?
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     */
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    unsigned char allocinit;
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    /*
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     * might add  scrmem at some time, to have everything
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     * in one place - the disadvantage would be that
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     * vc_cons etc can no longer be static
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     */
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};
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extern struct vt vt_con_data[];
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#define VT_IS_IN_USE(i) (vt_driver.table[i] && vt_driver.table[i]->count)
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#define VT_BUSY(i) (VT_IS_IN_USE(i) || vt_con_data + i == vtdata.fgconsole || vt_con_data + i == vtdata.select.vt)
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extern inline int vt_allocated (const struct vt * const vt)
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{
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    return vt->allocinit != 0;
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}
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extern void             vt_reset (const struct vt *vt);
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extern void             vt_completechangeconsole (const struct vt *vt);
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extern void             vt_changeconsole (struct vt *newvt);
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extern void             vt_mksound (unsigned int count, unsigned int vol, unsigned int ticks);
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extern int              vt_deallocate (int arg);
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extern int              vt_resize (int cols, int rows);
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/*
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 * Blanking ...
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 */
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extern void             vt_pokeblankedconsole (void);
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extern void             vt_do_unblankscreen (void);
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extern void             vt_do_blankscreen (int nopowersave);
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/*
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 * Screen switching...
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 */
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extern void             vt_updatescreen (const struct vt *newvt);
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/*
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 * Initialisation ...
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 */
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extern unsigned long    vt_pre_init (unsigned long kmem);
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extern void             vt_post_init (void);
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#endif /* _VT_KERN_H */

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