59  * 1) describe line orientation & lines list concept against screen
60  * 2) describe conversion of screen to lines
80 	/* Current tty screen. */
84 	struct tty3270_line *screen;  member
120 #define TTY_UPDATE_ALL		16	/* Recreate screen. */
134  * The input line are the two last lines of the screen.
191  * The status line is the last line of the screen. It shows the string
192  * "Running"/"Holding" in the lower right corner of the screen.
252 	 * containing all lines that will fit on the screen.  in tty3270_rebuild_update()
324  * Create a blank screen and remove all lines from the history.
333 		tp->screen[i].len = 0;  in tty3270_blank_screen()
418 		/* Write strings in the update list to the screen. */  in tty3270_update()
572 	 * has to be emitted to the tty and for 0x6d the screen  in tty3270_read_tasklet()
804  * Allocate tty3270 screen.
809 	struct tty3270_line *screen;  in tty3270_alloc_screen()  local
814 	screen = kzalloc(size, GFP_KERNEL);  in tty3270_alloc_screen()
815 	if (!screen)  in tty3270_alloc_screen()
819 		screen[lines].cells = kzalloc(size, GFP_KERNEL);  in tty3270_alloc_screen()
820 		if (!screen[lines].cells)  in tty3270_alloc_screen()
823 	return screen;  in tty3270_alloc_screen()
826 		kfree(screen[lines].cells);  in tty3270_alloc_screen()
827 	kfree(screen);  in tty3270_alloc_screen()
833  * Free tty3270 screen.
836 tty3270_free_screen(struct tty3270_line *screen, unsigned int rows)  in tty3270_free_screen()  argument
841 		kfree(screen[lines].cells);  in tty3270_free_screen()
842 	kfree(screen);  in tty3270_free_screen()
846  * Resize tty3270 screen
851 	struct tty3270_line *screen, *oscreen;  in tty3270_resize_work()  local
856 	screen = tty3270_alloc_screen(tp->n_rows, tp->n_cols);  in tty3270_resize_work()
857 	if (IS_ERR(screen))  in tty3270_resize_work()
862 	oscreen = tp->screen;  in tty3270_resize_work()
867 	tp->screen = screen;  in tty3270_resize_work()
928 	tty3270_free_screen(tp->screen, tp->view.rows);  in tty3270_free()
991 	tp->screen = tty3270_alloc_screen(tp->view.rows, tp->view.cols);  in tty3270_install()
992 	if (IS_ERR(tp->screen)) {  in tty3270_install()
993 		rc = PTR_ERR(tp->screen);  in tty3270_install()
1081  * Insert character into the screen at the current position with the
1089 	line = tp->screen + tp->cy;  in tty3270_put_character()
1122 	line = tp->screen + line_nr;  in tty3270_convert_line()
1203 		/* Line is currently visible on screen. */  in tty3270_convert_line()
1238 	temp = tp->screen[0];  in tty3270_lf()
1241 		tp->screen[i] = tp->screen[i+1];  in tty3270_lf()
1242 	tp->screen[tp->view.rows - 3] = temp;  in tty3270_lf()
1264 	line = tp->screen + tp->cy;  in tty3270_insert_characters()
1295 	line = tp->screen + tp->cy;  in tty3270_delete_characters()
1316 	line = tp->screen + tp->cy;  in tty3270_erase_characters()
1340 	line = tp->screen + tp->cy;  in tty3270_erase_line()
1359  *  Esc [ 0 J	Erase from current position to bottom of screen inclusive
1360  *  Esc [ 1 J	Erase from top of screen to current position inclusive
1361  *  Esc [ 2 J	Erase entire screen (without moving the cursor)
1371 			tp->screen[i].len = 0;  in tty3270_erase_display()
1376 			tp->screen[i].len = 0;  in tty3270_erase_display()
1382 			tp->screen[i].len = 0;  in tty3270_erase_display()