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1 /* |
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2 * console_struct.h |
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3 * |
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4 * Data structure describing single virtual console except for data |
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5 * used by vt.c. |
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6 * |
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7 * Fields marked with [#] must be set by the low-level driver. |
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8 * Fields marked with [!] can be changed by the low-level driver |
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9 * to achieve effects such as fast scrolling by changing the origin. |
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10 */ |
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11 |
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12 #ifndef _LINUX_CONSOLE_STRUCT_H |
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13 #define _LINUX_CONSOLE_STRUCT_H |
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14 |
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15 #include <linux/wait.h> |
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16 #include <linux/vt.h> |
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17 #include <linux/workqueue.h> |
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18 |
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19 struct vt_struct; |
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20 |
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21 #define NPAR 16 |
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22 |
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23 struct vc_data { |
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24 unsigned short vc_num; /* Console number */ |
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25 unsigned int vc_cols; /* [#] Console size */ |
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26 unsigned int vc_rows; |
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27 unsigned int vc_size_row; /* Bytes per row */ |
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28 unsigned int vc_scan_lines; /* # of scan lines */ |
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29 unsigned long vc_origin; /* [!] Start of real screen */ |
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30 unsigned long vc_scr_end; /* [!] End of real screen */ |
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31 unsigned long vc_visible_origin; /* [!] Top of visible window */ |
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32 unsigned int vc_top, vc_bottom; /* Scrolling region */ |
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33 const struct consw *vc_sw; |
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34 unsigned short *vc_screenbuf; /* In-memory character/attribute buffer */ |
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35 unsigned int vc_screenbuf_size; |
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36 unsigned char vc_mode; /* KD_TEXT, ... */ |
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37 /* attributes for all characters on screen */ |
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38 unsigned char vc_attr; /* Current attributes */ |
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39 unsigned char vc_def_color; /* Default colors */ |
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40 unsigned char vc_color; /* Foreground & background */ |
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41 unsigned char vc_s_color; /* Saved foreground & background */ |
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42 unsigned char vc_ulcolor; /* Color for underline mode */ |
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43 unsigned char vc_itcolor; |
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44 unsigned char vc_halfcolor; /* Color for half intensity mode */ |
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45 /* cursor */ |
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46 unsigned int vc_cursor_type; |
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47 unsigned short vc_complement_mask; /* [#] Xor mask for mouse pointer */ |
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48 unsigned short vc_s_complement_mask; /* Saved mouse pointer mask */ |
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49 unsigned int vc_x, vc_y; /* Cursor position */ |
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50 unsigned int vc_saved_x, vc_saved_y; |
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51 unsigned long vc_pos; /* Cursor address */ |
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52 /* fonts */ |
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53 unsigned short vc_hi_font_mask; /* [#] Attribute set for upper 256 chars of font or 0 if not supported */ |
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54 struct console_font vc_font; /* Current VC font set */ |
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55 unsigned short vc_video_erase_char; /* Background erase character */ |
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56 /* VT terminal data */ |
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57 unsigned int vc_state; /* Escape sequence parser state */ |
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58 unsigned int vc_npar,vc_par[NPAR]; /* Parameters of current escape sequence */ |
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59 struct tty_struct *vc_tty; /* TTY we are attached to */ |
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60 /* data for manual vt switching */ |
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61 struct vt_mode vt_mode; |
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62 struct pid *vt_pid; |
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63 int vt_newvt; |
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64 wait_queue_head_t paste_wait; |
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65 /* mode flags */ |
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66 unsigned int vc_charset : 1; /* Character set G0 / G1 */ |
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67 unsigned int vc_s_charset : 1; /* Saved character set */ |
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68 unsigned int vc_disp_ctrl : 1; /* Display chars < 32? */ |
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69 unsigned int vc_toggle_meta : 1; /* Toggle high bit? */ |
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70 unsigned int vc_decscnm : 1; /* Screen Mode */ |
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71 unsigned int vc_decom : 1; /* Origin Mode */ |
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72 unsigned int vc_decawm : 1; /* Autowrap Mode */ |
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73 unsigned int vc_deccm : 1; /* Cursor Visible */ |
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74 unsigned int vc_decim : 1; /* Insert Mode */ |
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75 unsigned int vc_deccolm : 1; /* 80/132 Column Mode */ |
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76 /* attribute flags */ |
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77 unsigned int vc_intensity : 2; /* 0=half-bright, 1=normal, 2=bold */ |
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78 unsigned int vc_italic:1; |
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79 unsigned int vc_underline : 1; |
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80 unsigned int vc_blink : 1; |
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81 unsigned int vc_reverse : 1; |
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82 unsigned int vc_s_intensity : 2; /* saved rendition */ |
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83 unsigned int vc_s_italic:1; |
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84 unsigned int vc_s_underline : 1; |
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85 unsigned int vc_s_blink : 1; |
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86 unsigned int vc_s_reverse : 1; |
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87 /* misc */ |
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88 unsigned int vc_ques : 1; |
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89 unsigned int vc_need_wrap : 1; |
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90 unsigned int vc_can_do_color : 1; |
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91 unsigned int vc_report_mouse : 2; |
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92 unsigned int vc_kmalloced : 1; |
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93 unsigned char vc_utf : 1; /* Unicode UTF-8 encoding */ |
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94 unsigned char vc_utf_count; |
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95 int vc_utf_char; |
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96 unsigned int vc_tab_stop[8]; /* Tab stops. 256 columns. */ |
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97 unsigned char vc_palette[16*3]; /* Colour palette for VGA+ */ |
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98 unsigned short * vc_translate; |
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99 unsigned char vc_G0_charset; |
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100 unsigned char vc_G1_charset; |
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101 unsigned char vc_saved_G0; |
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102 unsigned char vc_saved_G1; |
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103 unsigned int vc_resize_user; /* resize request from user */ |
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104 unsigned int vc_bell_pitch; /* Console bell pitch */ |
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105 unsigned int vc_bell_duration; /* Console bell duration */ |
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106 struct vc_data **vc_display_fg; /* [!] Ptr to var holding fg console for this display */ |
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107 unsigned long vc_uni_pagedir; |
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108 unsigned long *vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */ |
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109 /* additional information is in vt_kern.h */ |
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110 }; |
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111 |
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112 struct vc { |
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113 struct vc_data *d; |
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114 struct work_struct SAK_work; |
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115 |
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116 /* might add scrmem, vt_struct, kbd at some time, |
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117 to have everything in one place - the disadvantage |
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118 would be that vc_cons etc can no longer be static */ |
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119 }; |
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120 |
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121 extern struct vc vc_cons [MAX_NR_CONSOLES]; |
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122 extern void vc_SAK(struct work_struct *work); |
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123 |
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124 #define CUR_DEF 0 |
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125 #define CUR_NONE 1 |
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126 #define CUR_UNDERLINE 2 |
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127 #define CUR_LOWER_THIRD 3 |
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128 #define CUR_LOWER_HALF 4 |
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129 #define CUR_TWO_THIRDS 5 |
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130 #define CUR_BLOCK 6 |
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131 #define CUR_HWMASK 0x0f |
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132 #define CUR_SWMASK 0xfff0 |
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133 |
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134 #define CUR_DEFAULT CUR_UNDERLINE |
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135 |
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136 #define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp) |
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137 |
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138 #endif /* _LINUX_CONSOLE_STRUCT_H */ |