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TOMOYO Linux Cross Reference
Linux/include/linux/console_struct.h

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  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 #ifndef _LINUX_CONSOLE_STRUCT_H
 13 #define _LINUX_CONSOLE_STRUCT_H
 14 
 15 #include <linux/wait.h>
 16 #include <linux/vt.h>
 17 #include <linux/workqueue.h>
 18 
 19 struct vt_struct;
 20 struct uni_pagedir;
 21 
 22 #define NPAR 16
 23 
 24 struct vc_data {
 25         struct tty_port port;                   /* Upper level data */
 26 
 27         unsigned short  vc_num;                 /* Console number */
 28         unsigned int    vc_cols;                /* [#] Console size */
 29         unsigned int    vc_rows;
 30         unsigned int    vc_size_row;            /* Bytes per row */
 31         unsigned int    vc_scan_lines;          /* # of scan lines */
 32         unsigned long   vc_origin;              /* [!] Start of real screen */
 33         unsigned long   vc_scr_end;             /* [!] End of real screen */
 34         unsigned long   vc_visible_origin;      /* [!] Top of visible window */
 35         unsigned int    vc_top, vc_bottom;      /* Scrolling region */
 36         const struct consw *vc_sw;
 37         unsigned short  *vc_screenbuf;          /* In-memory character/attribute buffer */
 38         unsigned int    vc_screenbuf_size;
 39         unsigned char   vc_mode;                /* KD_TEXT, ... */
 40         /* attributes for all characters on screen */
 41         unsigned char   vc_attr;                /* Current attributes */
 42         unsigned char   vc_def_color;           /* Default colors */
 43         unsigned char   vc_color;               /* Foreground & background */
 44         unsigned char   vc_s_color;             /* Saved foreground & background */
 45         unsigned char   vc_ulcolor;             /* Color for underline mode */
 46         unsigned char   vc_itcolor;
 47         unsigned char   vc_halfcolor;           /* Color for half intensity mode */
 48         /* cursor */
 49         unsigned int    vc_cursor_type;
 50         unsigned short  vc_complement_mask;     /* [#] Xor mask for mouse pointer */
 51         unsigned short  vc_s_complement_mask;   /* Saved mouse pointer mask */
 52         unsigned int    vc_x, vc_y;             /* Cursor position */
 53         unsigned int    vc_saved_x, vc_saved_y;
 54         unsigned long   vc_pos;                 /* Cursor address */
 55         /* fonts */     
 56         unsigned short  vc_hi_font_mask;        /* [#] Attribute set for upper 256 chars of font or 0 if not supported */
 57         struct console_font vc_font;            /* Current VC font set */
 58         unsigned short  vc_video_erase_char;    /* Background erase character */
 59         /* VT terminal data */
 60         unsigned int    vc_state;               /* Escape sequence parser state */
 61         unsigned int    vc_npar,vc_par[NPAR];   /* Parameters of current escape sequence */
 62         /* data for manual vt switching */
 63         struct vt_mode  vt_mode;
 64         struct pid      *vt_pid;
 65         int             vt_newvt;
 66         wait_queue_head_t paste_wait;
 67         /* mode flags */
 68         unsigned int    vc_charset      : 1;    /* Character set G0 / G1 */
 69         unsigned int    vc_s_charset    : 1;    /* Saved character set */
 70         unsigned int    vc_disp_ctrl    : 1;    /* Display chars < 32? */
 71         unsigned int    vc_toggle_meta  : 1;    /* Toggle high bit? */
 72         unsigned int    vc_decscnm      : 1;    /* Screen Mode */
 73         unsigned int    vc_decom        : 1;    /* Origin Mode */
 74         unsigned int    vc_decawm       : 1;    /* Autowrap Mode */
 75         unsigned int    vc_deccm        : 1;    /* Cursor Visible */
 76         unsigned int    vc_decim        : 1;    /* Insert Mode */
 77         unsigned int    vc_deccolm      : 1;    /* 80/132 Column Mode */
 78         /* attribute flags */
 79         unsigned int    vc_intensity    : 2;    /* 0=half-bright, 1=normal, 2=bold */
 80         unsigned int    vc_italic:1;
 81         unsigned int    vc_underline    : 1;
 82         unsigned int    vc_blink        : 1;
 83         unsigned int    vc_reverse      : 1;
 84         unsigned int    vc_s_intensity  : 2;    /* saved rendition */
 85         unsigned int    vc_s_italic:1;
 86         unsigned int    vc_s_underline  : 1;
 87         unsigned int    vc_s_blink      : 1;
 88         unsigned int    vc_s_reverse    : 1;
 89         /* misc */
 90         unsigned int    vc_ques         : 1;
 91         unsigned int    vc_need_wrap    : 1;
 92         unsigned int    vc_can_do_color : 1;
 93         unsigned int    vc_report_mouse : 2;
 94         unsigned char   vc_utf          : 1;    /* Unicode UTF-8 encoding */
 95         unsigned char   vc_utf_count;
 96                  int    vc_utf_char;
 97         unsigned int    vc_tab_stop[8];         /* Tab stops. 256 columns. */
 98         unsigned char   vc_palette[16*3];       /* Colour palette for VGA+ */
 99         unsigned short * vc_translate;
100         unsigned char   vc_G0_charset;
101         unsigned char   vc_G1_charset;
102         unsigned char   vc_saved_G0;
103         unsigned char   vc_saved_G1;
104         unsigned int    vc_resize_user;         /* resize request from user */
105         unsigned int    vc_bell_pitch;          /* Console bell pitch */
106         unsigned int    vc_bell_duration;       /* Console bell duration */
107         unsigned short  vc_cur_blink_ms;        /* Cursor blink duration */
108         struct vc_data **vc_display_fg;         /* [!] Ptr to var holding fg console for this display */
109         struct uni_pagedir *vc_uni_pagedir;
110         struct uni_pagedir **vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */
111         bool vc_panic_force_write; /* when oops/panic this VC can accept forced output/blanking */
112         /* additional information is in vt_kern.h */
113 };
114 
115 struct vc {
116         struct vc_data *d;
117         struct work_struct SAK_work;
118 
119         /* might add  scrmem, vt_struct, kbd  at some time,
120            to have everything in one place - the disadvantage
121            would be that vc_cons etc can no longer be static */
122 };
123 
124 extern struct vc vc_cons [MAX_NR_CONSOLES];
125 extern void vc_SAK(struct work_struct *work);
126 
127 #define CUR_DEF         0
128 #define CUR_NONE        1
129 #define CUR_UNDERLINE   2
130 #define CUR_LOWER_THIRD 3
131 #define CUR_LOWER_HALF  4
132 #define CUR_TWO_THIRDS  5
133 #define CUR_BLOCK       6
134 #define CUR_HWMASK      0x0f
135 #define CUR_SWMASK      0xfff0
136 
137 #define CUR_DEFAULT CUR_UNDERLINE
138 
139 #define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp)
140 
141 #endif /* _LINUX_CONSOLE_STRUCT_H */
142 

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