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 #include <linux/wait.h>
  13 #include <linux/vt.h>
  14 #include <linux/workqueue.h>
  15
  16 struct vt_struct;
  17
  18 #define NPAR 16
  19
  20 struct vc_data {
  21         unsigned short  vc_num;                 /* Console number */
  22         unsigned int    vc_cols;                /* [#] Console size */
  23         unsigned int    vc_rows;
  24         unsigned int    vc_size_row;            /* Bytes per row */
  25         unsigned int    vc_scan_lines;          /* # of scan lines */
  26         unsigned long   vc_origin;              /* [!] Start of real screen */
  27         unsigned long   vc_scr_end;             /* [!] End of real screen */
  28         unsigned long   vc_visible_origin;      /* [!] Top of visible window */
  29         unsigned int    vc_top, vc_bottom;      /* Scrolling region */
  30         const struct consw *vc_sw;
  31         unsigned short  *vc_screenbuf;          /* In-memory character/attribute buffer */
  32         unsigned int    vc_screenbuf_size;
  33         unsigned char   vc_mode;                /* KD_TEXT, ... */
  34         /* attributes for all characters on screen */
  35         unsigned char   vc_attr;                /* Current attributes */
  36         unsigned char   vc_def_color;           /* Default colors */
  37         unsigned char   vc_color;               /* Foreground & background */
  38         unsigned char   vc_s_color;             /* Saved foreground & background */
  39         unsigned char   vc_ulcolor;             /* Color for underline mode */
  40         unsigned char   vc_halfcolor;           /* Color for half intensity mode */
  41         /* cursor */
  42         unsigned int    vc_cursor_type;
  43         unsigned short  vc_complement_mask;     /* [#] Xor mask for mouse pointer */
  44         unsigned short  vc_s_complement_mask;   /* Saved mouse pointer mask */
  45         unsigned int    vc_x, vc_y;             /* Cursor position */
  46         unsigned int    vc_saved_x, vc_saved_y;
  47         unsigned long   vc_pos;                 /* Cursor address */
  48         /* fonts */
  49         unsigned short  vc_hi_font_mask;        /* [#] Attribute set for upper 256 chars of font or 0 if not supported */
  50         struct console_font vc_font;            /* Current VC font set */
  51         unsigned short  vc_video_erase_char;    /* Background erase character */
  52         /* VT terminal data */
  53         unsigned int    vc_state;               /* Escape sequence parser state */
  54         unsigned int    vc_npar,vc_par[NPAR];   /* Parameters of current escape sequence */
  55         struct tty_struct *vc_tty;              /* TTY we are attached to */
  56         /* data for manual vt switching */
  57         struct vt_mode  vt_mode;
  58         struct pid      *vt_pid;
  59         int             vt_newvt;
  60         wait_queue_head_t paste_wait;
  61         /* mode flags */
  62         unsigned int    vc_charset      : 1;    /* Character set G0 / G1 */
  63         unsigned int    vc_s_charset    : 1;    /* Saved character set */
  64         unsigned int    vc_disp_ctrl    : 1;    /* Display chars < 32? */
  65         unsigned int    vc_toggle_meta  : 1;    /* Toggle high bit? */
  66         unsigned int    vc_decscnm      : 1;    /* Screen Mode */
  67         unsigned int    vc_decom        : 1;    /* Origin Mode */
  68         unsigned int    vc_decawm       : 1;    /* Autowrap Mode */
  69         unsigned int    vc_deccm        : 1;    /* Cursor Visible */
  70         unsigned int    vc_decim        : 1;    /* Insert Mode */
  71         unsigned int    vc_deccolm      : 1;    /* 80/132 Column Mode */
  72         /* attribute flags */
  73         unsigned int    vc_intensity    : 2;    /* 0=half-bright, 1=normal, 2=bold */
  74         unsigned int    vc_underline    : 1;
  75         unsigned int    vc_blink        : 1;
  76         unsigned int    vc_reverse      : 1;
  77         unsigned int    vc_s_intensity  : 2;    /* saved rendition */
  78         unsigned int    vc_s_underline  : 1;
  79         unsigned int    vc_s_blink      : 1;
  80         unsigned int    vc_s_reverse    : 1;
  81         /* misc */
  82         unsigned int    vc_ques         : 1;
  83         unsigned int    vc_need_wrap    : 1;
  84         unsigned int    vc_can_do_color : 1;
  85         unsigned int    vc_report_mouse : 2;
  86         unsigned int    vc_kmalloced    : 1;
  87         unsigned char   vc_utf          : 1;    /* Unicode UTF-8 encoding */
  88         unsigned char   vc_utf_count;
  89                  int    vc_utf_char;
  90         unsigned int    vc_tab_stop[8];         /* Tab stops. 256 columns. */
  91         unsigned char   vc_palette[16*3];       /* Colour palette for VGA+ */
  92         unsigned short * vc_translate;
  93         unsigned char   vc_G0_charset;
  94         unsigned char   vc_G1_charset;
  95         unsigned char   vc_saved_G0;
  96         unsigned char   vc_saved_G1;
  97         unsigned int    vc_bell_pitch;          /* Console bell pitch */
  98         unsigned int    vc_bell_duration;       /* Console bell duration */
  99         struct vc_data **vc_display_fg;         /* [!] Ptr to var holding fg console for this display */
 100         unsigned long   vc_uni_pagedir;
 101         unsigned long   *vc_uni_pagedir_loc;  /* [!] Location of uni_pagedir variable for this console */
 102         /* additional information is in vt_kern.h */
 103 };
 104
 105 struct vc {
 106         struct vc_data *d;
 107         struct work_struct SAK_work;
 108
 109         /* might add  scrmem, vt_struct, kbd  at some time,
 110            to have everything in one place - the disadvantage
 111            would be that vc_cons etc can no longer be static */
 112 };
 113
 114 extern struct vc vc_cons [MAX_NR_CONSOLES];
 115 extern void vc_SAK(struct work_struct *work);
 116
 117 #define CUR_DEF         0
 118 #define CUR_NONE        1
 119 #define CUR_UNDERLINE   2
 120 #define CUR_LOWER_THIRD 3
 121 #define CUR_LOWER_HALF  4
 122 #define CUR_TWO_THIRDS  5
 123 #define CUR_BLOCK       6
 124 #define CUR_HWMASK      0x0f
 125 #define CUR_SWMASK      0xfff0
 126
 127 #define CUR_DEFAULT CUR_UNDERLINE
 128
 129 #define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp)