include/linux/console_struct.h

1 /* SPDX-License-Identifier: GPL-2.0 */
5  * Data structure describing single virtual console except for data
8  * Fields marked with [#] must be set by the low-level driver.
9  * Fields marked with [!] can be changed by the low-level driver
33  * struct vc_state -- state of a VC
34  * @x: cursor's x-position
35  * @y: cursor's y-position
62  * Example: vc_data of a console that was scrolled 3 lines down.
64  *                              Console buffer
65  * vc_screenbuf ---------> +----------------------+-.
68  *                         | initializing Y       |    > scroll-back area
71  * vc_visible_origin ---> ^+----------------------+-:
74  *           vc_rows --->< | login: root          |   |  visible on console
76  * vc_origin -----------> ||                      |   |   vc_size_row * vc_rows)
78  *                        v+----------------------+-:
80  * vc_pos -----------------|--------v             |   > scroll-front area
82  * vc_scr_end -----------> +----------------------+-:
85  *                         +----------------------+-'
86  *                         <---- 2 * vc_cols ----->
87  *                         <---- vc_size_row ----->
89  * Note that every character in the console buffer is accompanied with an
98 	unsigned short	vc_num;			/* Console number */
99 	unsigned int	vc_cols;		/* [#] Console size */
109 	unsigned short	*vc_screenbuf;		/* In-memory character/attribute buffer */
148 	unsigned char	vc_utf		: 1;	/* Unicode UTF-8 encoding */
155 	unsigned int	vc_bell_pitch;		/* Console bell pitch */
156 	unsigned int	vc_bell_duration;	/* Console bell duration */
158 	struct vc_data **vc_display_fg;		/* [!] Ptr to var holding fg console for this display */
160 …struct uni_pagedict **uni_pagedict_loc; /* [!] Location of uni_pagedict variable for this console …
176 #define CUR_MAKE(size, change, set)	((size) | ((change) << 8) |	\  argument