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