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) 130