/* $NetBSD: wsdisplay_vconsvar.h,v 1.33.4.1 2023/07/05 16:09:50 martin Exp $ */ /*- * Copyright (c) 2005, 2006 Michael Lorenz * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _WSDISPLAY_VCONS_H_ #define _WSDISPLAY_VCONS_H_ #ifdef _KERNEL_OPT #include "opt_wsdisplay_compat.h" #include "opt_vcons.h" #endif #include struct vcons_data; struct vcons_screen { struct rasops_info scr_ri; LIST_ENTRY(vcons_screen) next; void *scr_cookie; struct vcons_data *scr_vd; struct vcons_data *scr_origvd; struct wsscreen_descr *scr_type; uint32_t *scr_chars; long *scr_attrs; void (*putchar)(void *, int, int, u_int, long); long scr_defattr; /* static flags set by the driver */ uint32_t scr_flags; #define VCONS_NO_REDRAW 1 /* don't readraw in switch_screen */ #define VCONS_SCREEN_IS_STATIC 2 /* don't free() this vcons_screen */ #define VCONS_SWITCH_NEEDS_POLLING 4 /* rasops can overlap so we need to * poll the busy flag when switching * - for drivers that use software * drawing */ #define VCONS_DONT_DRAW 8 /* don't draw on this screen at all */ /* * the following flags are for drivers which either can't accelerate (all) copy * operations or where drawing characters is faster than the blitter * for example, Sun's Creator boards can't accelerate copycols() */ #define VCONS_NO_COPYCOLS 0x10 /* use putchar() based copycols() */ #define VCONS_NO_COPYROWS 0x20 /* use putchar() based copyrows() */ #define VCONS_DONT_READ (VCONS_NO_COPYCOLS|VCONS_NO_COPYROWS|VCONS_NO_CURSOR) /* avoid framebuffer reads */ #define VCONS_LOADFONT 0x40 /* driver can load_font() */ #define VCONS_NO_CURSOR 0x80 /* use putchar() based cursor(), to * avoid fb reads */ #define VCONS_FONT_BITS_R2L 0x100 /* request right-to-left bitorder in * wsfont_find() */ #define VCONS_FONT_BYTES_R2L 0x200 /* request right-to-left byteorder in * wsfont_find() */ /* status flags used by vcons */ uint32_t scr_status; #define VCONS_IS_VISIBLE 1 /* this screen is currently visible */ /* non zero when some rasops operation is in progress */ int scr_busy; #ifdef WSDISPLAY_SCROLLSUPPORT int scr_lines_in_buffer; int scr_current_line; int scr_line_wanted; int scr_offset_to_zero; int scr_current_offset; #endif #ifdef VCONS_DRAW_INTR unsigned int scr_dirty; #endif }; #define SCREEN_IS_VISIBLE(scr) (((scr)->scr_status & VCONS_IS_VISIBLE) != 0) #define SCREEN_IS_BUSY(scr) (membar_consumer(), (scr)->scr_busy != 0) #define SCREEN_CAN_DRAW(scr) (((scr)->scr_flags & VCONS_DONT_DRAW) == 0) #define SCREEN_BUSY(scr) ((scr)->scr_busy = 1, membar_producer()) #define SCREEN_IDLE(scr) ((scr)->scr_busy = 0, membar_producer()) #define SCREEN_VISIBLE(scr) ((scr)->scr_status |= VCONS_IS_VISIBLE) #define SCREEN_INVISIBLE(scr) ((scr)->scr_status &= ~VCONS_IS_VISIBLE) #define SCREEN_DISABLE_DRAWING(scr) ((scr)->scr_flags |= VCONS_DONT_DRAW) #define SCREEN_ENABLE_DRAWING(scr) ((scr)->scr_flags &= ~VCONS_DONT_DRAW) #define DEFATTR ((WS_DEFAULT_FG << 24) || (WS_DEFAULT_BG << 16)) struct vcons_data { /* usually the drivers softc */ void *cookie; /* * setup the rasops part of the passed vcons_screen, like * geometry, framebuffer address, font, characters, acceleration. * we pass the cookie as 1st parameter */ void (*init_screen)(void *, struct vcons_screen *, int, long *); /* called before vcons_redraw_screen */ void *show_screen_cookie; void (*show_screen_cb)(struct vcons_screen *, void *); struct vcons_screen *active; struct vcons_data_private *private; }; int vcons_init(struct vcons_data *, void *, struct wsscreen_descr *, struct wsdisplay_accessops *); int vcons_earlyinit(struct vcons_data *, void *, struct wsscreen_descr *, struct wsdisplay_accessops *); int vcons_init_screen(struct vcons_data *, struct vcons_screen *, int, long *); /* completely redraw the screen, clear it if RI_FULLCLEAR is set */ void vcons_redraw_screen(struct vcons_screen *); void vcons_update_screen(struct vcons_screen *); void vcons_replay_msgbuf(struct vcons_screen *); void vcons_enable_polling(struct vcons_data *); void vcons_disable_polling(struct vcons_data *); void vcons_hard_switch(struct vcons_screen *); int vcons_offset_to_zero(const struct vcons_screen *); #endif /* _WSDISPLAY_VCONS_H_ */