include/linux/console_struct.h

   1 /*
   2  * console_struct.h
   3  *
   4  * Data structure describing single virtual console except for data
   5  * used by vt.c.
   6  *
   7  * Fields marked with [#] must be set by the low-level driver.
   8  * Fields marked with [!] can be changed by the low-level driver
   9  * to achieve effects such as fast scrolling by changing the origin.
  10  */
  11
  12 #define NPAR 16
  13
  14 struct vc_data {
  15         unsigned short  vc_num;                 /* Console number */
  16         unsigned int    vc_cols;                /* [#] Console size */
  17         unsigned int    vc_rows;
  18         unsigned int    vc_size_row;            /* Bytes per row */
  19         unsigned int    vc_scan_lines;          /* # of scan lines */
  20         unsigned long   vc_origin;              /* [!] Start of real screen */
  21         unsigned long   vc_scr_end;             /* [!] End of real screen */
  22         unsigned long   vc_visible_origin;      /* [!] Top of visible window */
  23         unsigned int    vc_top, vc_bottom;      /* Scrolling region */
  24         const struct consw *vc_sw;
  25         unsigned short  *vc_screenbuf;          /* In-memory character/attribute buffer */
  26         unsigned int    vc_screenbuf_size;
  27         /* attributes for all characters on screen */
  28         unsigned char   vc_attr;                /* Current attributes */
  29         unsigned char   vc_def_color;           /* Default colors */
  30         unsigned char   vc_color;               /* Foreground & background */
  31         unsigned char   vc_s_color;             /* Saved foreground & background */
  32         unsigned char   vc_ulcolor;             /* Color for underline mode */
  33         unsigned char   vc_halfcolor;           /* Color for half intensity mode */
  34         /* cursor */
  35         unsigned int    vc_cursor_type;
  36         unsigned short  vc_complement_mask;     /* [#] Xor mask for mouse pointer */
  37         unsigned short  vc_s_complement_mask;   /* Saved mouse pointer mask */
  38         unsigned int    vc_x, vc_y;             /* Cursor position */
  39         unsigned int    vc_saved_x, vc_saved_y;
  40         unsigned long   vc_pos;                 /* Cursor address */
  41         /* fonts */
  42         unsigned short  vc_hi_font_mask;        /* [#] Attribute set for upper 256 chars of font or 0 if not supported */
  43         struct console_font vc_font;            /* Current VC font set */
  44         unsigned short  vc_video_erase_char;    /* Background erase character */
  45         /* VT terminal data */
  46         unsigned int    vc_state;               /* Escape sequence parser state */
  47         unsigned int    vc_npar,vc_par[NPAR];   /* Parameters of current escape sequence */
  48         struct tty_struct *vc_tty;              /* TTY we are attached to */
  49         /* mode flags */
  50         unsigned int    vc_charset      : 1;    /* Character set G0 / G1 */
  51         unsigned int    vc_s_charset    : 1;    /* Saved character set */
  52         unsigned int    vc_disp_ctrl    : 1;    /* Display chars < 32? */
  53         unsigned int    vc_toggle_meta  : 1;    /* Toggle high bit? */
  54         unsigned int    vc_decscnm      : 1;    /* Screen Mode */
  55         unsigned int    vc_decom        : 1;    /* Origin Mode */
  56         unsigned int    vc_decawm       : 1;    /* Autowrap Mode */
  57         unsigned int    vc_deccm        : 1;    /* Cursor Visible */
  58         unsigned int    vc_decim        : 1;    /* Insert Mode */
  59         unsigned int    vc_deccolm      : 1;    /* 80/132 Column Mode */
  60         /* attribute flags */
  61         unsigned int    vc_intensity    : 2;    /* 0=half-bright, 1=normal, 2=bold */
  62         unsigned int    vc_underline    : 1;
  63         unsigned int    vc_blink        : 1;
  64         unsigned int    vc_reverse      : 1;
  65         unsigned int    vc_s_intensity  : 2;    /* saved rendition */
  66         unsigned int    vc_s_underline  : 1;
  67         unsigned int    vc_s_blink      : 1;
  68         unsigned int    vc_s_reverse    : 1;
  69         /* misc */
  70         unsigned int    vc_ques         : 1;
  71         unsigned int    vc_need_wrap    : 1;
  72         unsigned int    vc_can_do_color : 1;
  73         unsigned int    vc_report_mouse : 2;
  74         unsigned int    vc_kmalloced    : 1;
  75         unsigned char   vc_utf          : 1;    /* Unicode UTF-8 encoding */
  76         unsigned char   vc_utf_count;
  77                  int    vc_utf_char;
  78         unsigned int    vc_tab_stop[8];         /* Tab stops. 256 columns. */
  79         unsigned char   vc_palette[16*3];       /* Colour palette for VGA+ */
  80         unsigned short * vc_translate;
  81         unsigned char   vc_G0_charset;
  82         unsigned char   vc_G1_charset;
  83         unsigned char   vc_saved_G0;
  84         unsigned char   vc_saved_G1;
  85         unsigned int    vc_bell_pitch;          /* Console bell pitch */
  86         unsigned int    vc_bell_duration;       /* Console bell duration */
  87         struct vc_data **vc_display_fg;         /* [!] Ptr to var holding fg console for this display */
  88         unsigned long   vc_uni_pagedir;
  89         unsigned long   *vc_uni_pagedir_loc;  /* [!] Location of uni_pagedir variable for this console */
  90         /* additional information is in vt_kern.h */
  91 };
  92
  93 struct vc {
  94         struct vc_data *d;
  95
  96         /* might add  scrmem, vt_struct, kbd  at some time,
  97            to have everything in one place - the disadvantage
  98            would be that vc_cons etc can no longer be static */
  99 };
 100
 101 extern struct vc vc_cons [MAX_NR_CONSOLES];
 102
 103 #define CUR_DEF         0
 104 #define CUR_NONE        1
 105 #define CUR_UNDERLINE   2
 106 #define CUR_LOWER_THIRD 3
 107 #define CUR_LOWER_HALF  4
 108 #define CUR_TWO_THIRDS  5
 109 #define CUR_BLOCK       6
 110 #define CUR_HWMASK      0x0f
 111 #define CUR_SWMASK      0xfff0
 112
 113 #define CUR_DEFAULT CUR_UNDERLINE
 114
 115 #define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp)