FreeBSD/Linux Kernel Cross Reference
sys/dev/wscons/wsdisplayvar.h

     /* $NetBSD: wsdisplayvar.h,v 1.25.4.2 2004/06/07 09:47:19 tron Exp $ */
     
     /*
      * Copyright (c) 1996, 1997 Christopher G. Demetriou.  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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Christopher G. Demetriou
     *      for the NetBSD Project.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
     */
    
    struct device;
    
    /*
     * WSDISPLAY interfaces
     */
    
    /*
     * Emulation functions, for displays that can support glass-tty terminal
     * emulations.  These are character oriented, with row and column
     * numbers starting at zero in the upper left hand corner of the
     * screen.
     *
     * These are used only when emulating a terminal.  Therefore, displays
     * drivers which cannot emulate terminals do not have to provide them.
     *
     * There is a "void *" cookie provided by the display driver associated
     * with these functions, which is passed to them when they are invoked.
     */
    struct wsdisplay_emulops {
            void    (*cursor)(void *c, int on, int row, int col);
            int     (*mapchar)(void *, int, unsigned int *);
            void    (*putchar)(void *c, int row, int col, u_int uc, long attr);
            void    (*copycols)(void *c, int row, int srccol, int dstcol,int ncols);
            void    (*erasecols)(void *c, int row, int startcol, int ncols, long);
            void    (*copyrows)(void *c, int srcrow, int dstrow, int nrows);
            void    (*eraserows)(void *c, int row, int nrows, long);
            int     (*allocattr)(void *c, int fg, int bg, int flags, long *);
    /* fg / bg values. Made identical to ANSI terminal color codes. */
    #define WSCOL_BLACK     0
    #define WSCOL_RED       1
    #define WSCOL_GREEN     2
    #define WSCOL_BROWN     3
    #define WSCOL_BLUE      4
    #define WSCOL_MAGENTA   5
    #define WSCOL_CYAN      6
    #define WSCOL_WHITE     7
    /* flag values: */
    #define WSATTR_REVERSE  1
    #define WSATTR_HILIT    2
    #define WSATTR_BLINK    4
    #define WSATTR_UNDERLINE 8
    #define WSATTR_WSCOLORS 16
            /* XXX need a free_attr() ??? */
    };
    
    struct wsscreen_descr {
            char *name;
            int ncols, nrows;
            const struct wsdisplay_emulops *textops;
            int fontwidth, fontheight;
            int capabilities;
    #define WSSCREEN_WSCOLORS       1       /* minimal color capability */
    #define WSSCREEN_REVERSE        2       /* can display reversed */
    #define WSSCREEN_HILIT          4       /* can highlight (however) */
    #define WSSCREEN_BLINK          8       /* can blink */
    #define WSSCREEN_UNDERLINE      16      /* can underline */
            void *modecookie;
    };
    
    struct wsdisplay_font;
    struct wsdisplay_char;
    /*
     * Display access functions, invoked by user-land programs which require
     * direct device access, such as X11.
     *
     * There is a "void *" cookie provided by the display driver associated
     * with these functions, which is passed to them when they are invoked.
    */
   struct wsdisplay_accessops {
           int     (*ioctl)(void *v, u_long cmd, caddr_t data, int flag,
                       struct proc *p);
           paddr_t (*mmap)(void *v, off_t off, int prot);
           int     (*alloc_screen)(void *, const struct wsscreen_descr *,
                                        void **, int *, int *, long *);
           void    (*free_screen)(void *, void *);
           int     (*show_screen)(void *, void *, int,
                                       void (*) (void *, int, int), void *);
           int     (*load_font)(void *, void *, struct wsdisplay_font *);
           void    (*pollc)(void *, int);
           int     (*getwschar)(void *, struct wsdisplay_char *);
           int     (*putwschar)(void *, struct wsdisplay_char *);
           void    (*scroll) __P((void *, void *, int));
   };
   
   /*
    * Attachment information provided by wsdisplaydev devices when attaching
    * wsdisplay units.
    */
   struct wsdisplaydev_attach_args {
           const struct wsdisplay_accessops *accessops;    /* access ops */
           void    *accesscookie;                          /* access cookie */
   };
   
   /* passed to wscons by the video driver to tell about its capabilities */
   struct wsscreen_list {
           int nscreens;
           const struct wsscreen_descr **screens;
   };
   
   /*
    * Attachment information provided by wsemuldisplaydev devices when attaching
    * wsdisplay units.
    */
   struct wsemuldisplaydev_attach_args {
           int     console;                                /* is it console? */
           const struct wsscreen_list *scrdata;            /* screen cfg info */
           const struct wsdisplay_accessops *accessops;    /* access ops */
           void    *accesscookie;                          /* access cookie */
   };
   
   #include "locators.h"
   
   #define wsemuldisplaydevcf_console      cf_loc[WSEMULDISPLAYDEVCF_CONSOLE]      /* spec'd as console? */
   #define WSEMULDISPLAYDEVCF_CONSOLE_UNK  (WSEMULDISPLAYDEVCF_CONSOLE_DEFAULT)
   #define wsemuldisplaydevcf_kbdmux       cf_loc[WSEMULDISPLAYDEVCF_KBDMUX]
   #define wsdisplaydevcf_kbdmux           cf_loc[WSDISPLAYDEVCF_KBDMUX]
   
   struct wscons_syncops {
           int (*detach)(void *, int, void (*)(void *, int, int), void *);
           int (*attach)(void *, int, void (*)(void *, int, int), void *);
           int (*check)(void *);
           void (*destroy)(void *);
   };
   
   /*
    * Autoconfiguration helper functions.
    */
   void    wsdisplay_cnattach(const struct wsscreen_descr *, void *,int,int, long);
   int     wsdisplaydevprint(void *, const char *);
   int     wsemuldisplaydevprint(void *, const char *);
   
   /*
    * Console interface.
    */
   void    wsdisplay_cnputc(dev_t dev, int i);
   
   /*
    * for use by compatibility code
    */
   struct wsdisplay_softc;
   struct wsscreen;
   int wsscreen_attach_sync(struct wsscreen *,
                            const struct wscons_syncops *, void *);
   int wsscreen_detach_sync(struct wsscreen *);
   int wsscreen_lookup_sync(struct wsscreen *,
                            const struct wscons_syncops *, void **);
   
   int wsdisplay_maxscreenidx(struct wsdisplay_softc *);
   int wsdisplay_screenstate(struct wsdisplay_softc *, int);
   int wsdisplay_getactivescreen(struct wsdisplay_softc *);
   int wsscreen_switchwait(struct wsdisplay_softc *, int);
   
   int wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *,
                                u_long cmd, caddr_t data,int flag, struct proc *p);
   
   int wsdisplay_usl_ioctl1(struct wsdisplay_softc *,
                            u_long, caddr_t, int, struct proc *);
   
   int wsdisplay_usl_ioctl2(struct wsdisplay_softc *, struct wsscreen *,
                            u_long, caddr_t, int, struct proc *);
   
   int wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data,
                            int flag, struct proc *p);
   
   int wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data,
                           int flag, struct proc *p);
   
   #ifdef WSDISPLAY_SCROLLSUPPORT
   void wsdisplay_scroll (void *v, int op);
   #endif
   
   #define WSDISPLAY_SCROLL_BACKWARD       1
   #define WSDISPLAY_SCROLL_FORWARD        (1 << 1)
   #define WSDISPLAY_SCROLL_RESET          (1 << 2)
   #define WSDISPLAY_SCROLL_LOW            (1 << 3)
   
   int wsdisplay_stat_inject(struct device *dev, u_int type, int value);
   
   /*
    * for general use
    */
   #define WSDISPLAY_NULLSCREEN    -1
   void wsdisplay_switchtoconsole(void);
   const struct wsscreen_descr *
       wsdisplay_screentype_pick(const struct wsscreen_list *, const char *);

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