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 struct vc_data **vc_display_fg; /* [!] Ptr to var holding fg console for this display */ 108 struct uni_pagedir *vc_uni_pagedir; 109 struct uni_pagedir **vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */ 110 bool vc_panic_force_write; /* when oops/panic this VC can accept forced output/blanking */ 111 /* additional information is in vt_kern.h */ 112 }; 113 114 struct vc { 115 struct vc_data *d; 116 struct work_struct SAK_work; 117 118 /* might add scrmem, vt_struct, kbd at some time, 119 to have everything in one place - the disadvantage 120 would be that vc_cons etc can no longer be static */ 121 }; 122 123 extern struct vc vc_cons [MAX_NR_CONSOLES]; 124 extern void vc_SAK(struct work_struct *work); 125 126 #define CUR_DEF 0 127 #define CUR_NONE 1 128 #define CUR_UNDERLINE 2 129 #define CUR_LOWER_THIRD 3 130 #define CUR_LOWER_HALF 4 131 #define CUR_TWO_THIRDS 5 132 #define CUR_BLOCK 6 133 #define CUR_HWMASK 0x0f 134 #define CUR_SWMASK 0xfff0 135 136 #define CUR_DEFAULT CUR_UNDERLINE 137 138 #define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp) 139 140 #endif /* _LINUX_CONSOLE_STRUCT_H */ 141