console_struct.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:5k
- /*
- * console_struct.h
- *
- * Data structure describing single virtual console except for data
- * used by vt.c.
- *
- * Fields marked with [#] must be set by the low-level driver.
- * Fields marked with [!] can be changed by the low-level driver
- * to achieve effects such as fast scrolling by changing the origin.
- */
- struct vt_struct;
- #define NPAR 16
- struct vc_data {
- unsigned short vc_num; /* Console number */
- unsigned int vc_cols; /* [#] Console size */
- unsigned int vc_rows;
- unsigned int vc_size_row; /* Bytes per row */
- unsigned int vc_scan_lines; /* # of scan lines */
- unsigned long vc_origin; /* [!] Start of real screen */
- unsigned long vc_scr_end; /* [!] End of real screen */
- unsigned long vc_visible_origin; /* [!] Top of visible window */
- unsigned int vc_top, vc_bottom; /* Scrolling region */
- const struct consw *vc_sw;
- unsigned short *vc_screenbuf; /* In-memory character/attribute buffer */
- unsigned int vc_screenbuf_size;
- unsigned char vc_mode; /* KD_TEXT, ... */
- /* attributes for all characters on screen */
- unsigned char vc_attr; /* Current attributes */
- unsigned char vc_def_color; /* Default colors */
- unsigned char vc_color; /* Foreground & background */
- unsigned char vc_s_color; /* Saved foreground & background */
- unsigned char vc_ulcolor; /* Color for underline mode */
- unsigned char vc_halfcolor; /* Color for half intensity mode */
- /* cursor */
- unsigned int vc_cursor_type;
- unsigned short vc_complement_mask; /* [#] Xor mask for mouse pointer */
- unsigned short vc_s_complement_mask; /* Saved mouse pointer mask */
- unsigned int vc_x, vc_y; /* Cursor position */
- unsigned int vc_saved_x, vc_saved_y;
- unsigned long vc_pos; /* Cursor address */
- /* fonts */
- unsigned short vc_hi_font_mask; /* [#] Attribute set for upper 256 chars of font or 0 if not supported */
- struct console_font vc_font; /* Current VC font set */
- unsigned short vc_video_erase_char; /* Background erase character */
- /* VT terminal data */
- unsigned int vc_state; /* Escape sequence parser state */
- unsigned int vc_npar,vc_par[NPAR]; /* Parameters of current escape sequence */
- struct tty_struct *vc_tty; /* TTY we are attached to */
- /* data for manual vt switching */
- struct vt_mode vt_mode;
- int vt_pid;
- int vt_newvt;
- wait_queue_head_t paste_wait;
- /* mode flags */
- unsigned int vc_charset : 1; /* Character set G0 / G1 */
- unsigned int vc_s_charset : 1; /* Saved character set */
- unsigned int vc_disp_ctrl : 1; /* Display chars < 32? */
- unsigned int vc_toggle_meta : 1; /* Toggle high bit? */
- unsigned int vc_decscnm : 1; /* Screen Mode */
- unsigned int vc_decom : 1; /* Origin Mode */
- unsigned int vc_decawm : 1; /* Autowrap Mode */
- unsigned int vc_deccm : 1; /* Cursor Visible */
- unsigned int vc_decim : 1; /* Insert Mode */
- unsigned int vc_deccolm : 1; /* 80/132 Column Mode */
- /* attribute flags */
- unsigned int vc_intensity : 2; /* 0=half-bright, 1=normal, 2=bold */
- unsigned int vc_underline : 1;
- unsigned int vc_blink : 1;
- unsigned int vc_reverse : 1;
- unsigned int vc_s_intensity : 2; /* saved rendition */
- unsigned int vc_s_underline : 1;
- unsigned int vc_s_blink : 1;
- unsigned int vc_s_reverse : 1;
- /* misc */
- unsigned int vc_ques : 1;
- unsigned int vc_need_wrap : 1;
- unsigned int vc_can_do_color : 1;
- unsigned int vc_report_mouse : 2;
- unsigned int vc_kmalloced : 1;
- unsigned char vc_utf : 1; /* Unicode UTF-8 encoding */
- unsigned char vc_utf_count;
- int vc_utf_char;
- unsigned int vc_tab_stop[8]; /* Tab stops. 256 columns. */
- unsigned char vc_palette[16*3]; /* Colour palette for VGA+ */
- unsigned short * vc_translate;
- unsigned char vc_G0_charset;
- unsigned char vc_G1_charset;
- unsigned char vc_saved_G0;
- unsigned char vc_saved_G1;
- unsigned int vc_bell_pitch; /* Console bell pitch */
- unsigned int vc_bell_duration; /* Console bell duration */
- struct vc_data **vc_display_fg; /* [!] Ptr to var holding fg console for this display */
- unsigned long vc_uni_pagedir;
- unsigned long *vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */
- /* additional information is in vt_kern.h */
- };
- struct vc {
- struct vc_data *d;
- /* might add scrmem, vt_struct, kbd at some time,
- to have everything in one place - the disadvantage
- would be that vc_cons etc can no longer be static */
- };
- extern struct vc vc_cons [MAX_NR_CONSOLES];
- #define CUR_DEF 0
- #define CUR_NONE 1
- #define CUR_UNDERLINE 2
- #define CUR_LOWER_THIRD 3
- #define CUR_LOWER_HALF 4
- #define CUR_TWO_THIRDS 5
- #define CUR_BLOCK 6
- #define CUR_HWMASK 0x0f
- #define CUR_SWMASK 0xfff0
- #define CUR_DEFAULT CUR_UNDERLINE
- #define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp)