Subversion Repositories shark

/*
 * console_struct.h
 *
 * Data structure describing single virtual console except for data
 * used by vt.c.
 *
 * Fields marked with [#] must be set by the low-level driver.
 * Fields marked with [!] can be changed by the low-level driver
 * to achieve effects such as fast scrolling by changing the origin.
 */

#define NPAR 16

struct vc_data {
        unsigned short  vc_num;                 /* Console number */
        unsigned int    vc_cols;                /* [#] Console size */
        unsigned int    vc_rows;
        unsigned int    vc_size_row;            /* Bytes per row */
        unsigned int    vc_scan_lines;          /* # of scan lines */
        unsigned long   vc_origin;              /* [!] Start of real screen */
        unsigned long   vc_scr_end;             /* [!] End of real screen */
        unsigned long   vc_visible_origin;      /* [!] Top of visible window */
        unsigned int    vc_top, vc_bottom;      /* Scrolling region */
        const struct consw *vc_sw;
        unsigned short  *vc_screenbuf;          /* In-memory character/attribute buffer */
        unsigned int    vc_screenbuf_size;
        /* attributes for all characters on screen */
        unsigned char   vc_attr;                /* Current attributes */
        unsigned char   vc_def_color;           /* Default colors */
        unsigned char   vc_color;               /* Foreground & background */
        unsigned char   vc_s_color;             /* Saved foreground & background */
        unsigned char   vc_ulcolor;             /* Color for underline mode */
        unsigned char   vc_halfcolor;           /* Color for half intensity mode */
        /* cursor */
        unsigned int    vc_cursor_type;
        unsigned short  vc_complement_mask;     /* [#] Xor mask for mouse pointer */
        unsigned short  vc_s_complement_mask;   /* Saved mouse pointer mask */
        unsigned int    vc_x, vc_y;             /* Cursor position */
        unsigned int    vc_saved_x, vc_saved_y;
        unsigned long   vc_pos;                 /* Cursor address */
        /* fonts */    
        unsigned short  vc_hi_font_mask;        /* [#] Attribute set for upper 256 chars of font or 0 if not supported */
        struct console_font_op vc_font;         /* Current VC font set */
        unsigned short  vc_video_erase_char;    /* Background erase character */
        /* VT terminal data */
        unsigned int    vc_state;               /* Escape sequence parser state */
        unsigned int    vc_npar,vc_par[NPAR];   /* Parameters of current escape sequence */
        struct tty_struct *vc_tty;              /* TTY we are attached to */
        /* mode flags */
        unsigned int    vc_charset      : 1;    /* Character set G0 / G1 */
        unsigned int    vc_s_charset    : 1;    /* Saved character set */
        unsigned int    vc_disp_ctrl    : 1;    /* Display chars < 32? */
        unsigned int    vc_toggle_meta  : 1;    /* Toggle high bit? */
        unsigned int    vc_decscnm      : 1;    /* Screen Mode */
        unsigned int    vc_decom        : 1;    /* Origin Mode */
        unsigned int    vc_decawm       : 1;    /* Autowrap Mode */
        unsigned int    vc_deccm        : 1;    /* Cursor Visible */
        unsigned int    vc_decim        : 1;    /* Insert Mode */
        unsigned int    vc_deccolm      : 1;    /* 80/132 Column Mode */
        /* attribute flags */
        unsigned int    vc_intensity    : 2;    /* 0=half-bright, 1=normal, 2=bold */
        unsigned int    vc_underline    : 1;
        unsigned int    vc_blink        : 1;
        unsigned int    vc_reverse      : 1;
        unsigned int    vc_s_intensity  : 2;    /* saved rendition */
        unsigned int    vc_s_underline  : 1;
        unsigned int    vc_s_blink      : 1;
        unsigned int    vc_s_reverse    : 1;
        /* misc */
        unsigned int    vc_ques         : 1;
        unsigned int    vc_need_wrap    : 1;
        unsigned int    vc_can_do_color : 1;
        unsigned int    vc_report_mouse : 2;
        unsigned int    vc_kmalloced    : 1;
        unsigned char   vc_utf          : 1;    /* Unicode UTF-8 encoding */
        unsigned char   vc_utf_count;
                 int    vc_utf_char;
        unsigned int    vc_tab_stop[8];         /* Tab stops. 256 columns. */
        unsigned char   vc_palette[16*3];       /* Colour palette for VGA+ */
        unsigned short * vc_translate;
        unsigned char   vc_G0_charset;
        unsigned char   vc_G1_charset;
        unsigned char   vc_saved_G0;
        unsigned char   vc_saved_G1;
        unsigned int    vc_bell_pitch;          /* Console bell pitch */
        unsigned int    vc_bell_duration;       /* Console bell duration */
        struct vc_data **vc_display_fg;         /* [!] Ptr to var holding fg console for this display */
        unsigned long   vc_uni_pagedir;
        unsigned long   *vc_uni_pagedir_loc;  /* [!] Location of uni_pagedir variable for this console */
        /* additional information is in vt_kern.h */
};

struct vc {
        struct vc_data *d;

        /* might add  scrmem, vt_struct, kbd  at some time,
           to have everything in one place - the disadvantage
           would be that vc_cons etc can no longer be static */
};

extern struct vc vc_cons [MAX_NR_CONSOLES];

#define CUR_DEF         0
#define CUR_NONE        1
#define CUR_UNDERLINE   2
#define CUR_LOWER_THIRD 3
#define CUR_LOWER_HALF  4
#define CUR_TWO_THIRDS  5
#define CUR_BLOCK       6
#define CUR_HWMASK      0x0f
#define CUR_SWMASK      0xfff0

#define CUR_DEFAULT CUR_UNDERLINE

#define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp)