l4con.h

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/* $Id: l4con.h 27999 2007-03-12 16:53:09Z adam $ */
/**
 * \file        l4con/server/src/l4con.h
 * \brief       some global structures
 *
 * \date        2001
 * \author      Christian Helmuth <ch12@os.inf.tu-dresden.de>
 *              Frank Mehnert <fm3@os.inf.tu-dresden.de> */

/* (c) 2003 'Technische Universitaet Dresden'
 * This file is part of the con package, which is distributed under
 * the terms of the GNU General Public License 2. Please see the
 * COPYING file for details. */

#ifndef _CON_H
#define _CON_H

/* L4 includes */
#include <l4/l4con/l4con.h>
#include <l4/sys/types.h>
#include <l4/lock/lock.h>

/* local includes */
#include "config.h"

#define MAX_NR_L4CONS   (CONFIG_MAX_VC+1)       /* number of vc's,
                                                 * consider master=0 */

struct l4con_vc;

typedef void (*pslim_copy_fn)(struct l4con_vc*, int sx, int sy,
                              int width, int height, int dx, int dy);
typedef void (*pslim_fill_fn)(struct l4con_vc*, int sx, int sy,
                              int width, int height, unsigned color);
typedef void (*pslim_blit_fn)(struct l4con_vc*, unsigned fgx, unsigned bgx,
                              const l4_uint8_t* chardata,
                              int width, int height, int yy, int xx);
typedef void (*pslim_sync_fn)(void);
typedef void (*pslim_drty_fn)(int x, int y, int width, int height);

struct l4con_vc 
{
  struct l4con_vc *prev;
  struct l4con_vc *next;

  l4_uint8_t    vc_number;       /* which vc is it */
  l4_uint8_t    mode;            /* IN, OUT, INOUT, USED, ... */
  l4_threadid_t vc_l4id;         /* local pSLIM handler */

  void          *sbuf1;          /* 1st buffer for "indirect strings" */
  void          *sbuf2;          /* 2nd buffer for "indirect strings" */
  void          *sbuf3;          /* 3rd buffer for "indirect strings" */
  l4_size_t     sbuf1_size;      /* size of 1st string buffer */
  l4_size_t     sbuf2_size;      /* size of 2nd string buffer */
  l4_size_t     sbuf3_size;      /* size of 3rd string buffer */

  /* vfb */
  l4_uint8_t    gmode;           /* graphics mode */
  l4_uint8_t    bpp;             /* bits per pixel */
  l4_umword_t   client_xres;
  l4_umword_t   client_yres;     /* screen dimensions (client visible) */
  l4_umword_t   client_xofs;
  l4_umword_t   client_yofs;     /* offsets of user vfb into physical fb */
  l4_umword_t   xres, yres;      /* physical dimensions of fb */
  l4_umword_t   pan_xofs, pan_yofs;
  l4_umword_t   logo_x, logo_y;
  l4_umword_t   bytes_per_pixel; /* bytes per pixel */
  l4_umword_t   bytes_per_line;  /* bytes per line */
  l4_umword_t   flags;           /* miscellaneous flags */
  l4_uint8_t    *vfb;            /* begin of vfb in memory */
  l4_uint8_t    *fb;             /* whether vfb or h/w */

  l4_uint8_t    vfb_in_server;   /* =1: server has allocated a dataspace */
  l4_uint8_t    save_restore;    /* =1: save/restore to *vfb */
  l4_uint8_t    fb_mapped;       /* =1: phys. framebuffer mapped to client */
  l4_uint32_t   vfb_size;        /* size of vfb; depends on g_mode */
  l4lock_t      fb_lock;         /* thread is `drawing' - mutex for fb */
  const l4con_pslim_color_t *color_tab;

  l4_taskid_t   vc_partner_l4id; /* partner task (owner of console) */
  
  /* events */
  l4_uint8_t    ev_mode;         /* event filter */
  l4_threadid_t ev_partner_l4id; /* input event handler */

  pslim_copy_fn do_copy;         /* current function for fb_copy */
  pslim_fill_fn do_fill;         /* current function for fb_clean */
  pslim_sync_fn do_sync;         /* current function for sync acceleration */
  pslim_drty_fn do_drty;         /* function for marking framebuffer areas 
                                  * as dirty after direct framebuffer access */
  l4_threadid_t clients[CONFIG_MAX_CLIENTS];
};

#endif /* !_CON_H */

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