Line data    Source code

       1             : /* $OpenBSD: pcdisplayvar.h,v 1.12 2017/05/30 08:24:56 fcambus Exp $ */
       2             : /* $NetBSD: pcdisplayvar.h,v 1.8 2000/01/25 02:44:03 ad Exp $ */
       3             : 
       4             : /*
       5             :  * Copyright (c) 1998
       6             :  *      Matthias Drochner.  All rights reserved.
       7             :  *
       8             :  * Redistribution and use in source and binary forms, with or without
       9             :  * modification, are permitted provided that the following conditions
      10             :  * are met:
      11             :  * 1. Redistributions of source code must retain the above copyright
      12             :  *    notice, this list of conditions and the following disclaimer.
      13             :  * 2. Redistributions in binary form must reproduce the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer in the
      15             :  *    documentation and/or other materials provided with the distribution.
      16             :  *
      17             :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      18             :  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      19             :  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      20             :  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
      21             :  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      22             :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      23             :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      24             :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      25             :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      26             :  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      27             :  *
      28             :  */
      29             : 
      30             : struct pcdisplayscreen {
      31             :         struct pcdisplay_handle *hdl;
      32             : 
      33             :         const struct wsscreen_descr *type;
      34             : 
      35             :         int active;             /* currently displayed */
      36             :         u_int16_t *mem;         /* backing store for contents */
      37             : 
      38             :         int cursoron;           /* cursor displayed? */
      39             : #ifdef PCDISPLAY_SOFTCURSOR
      40             :         int cursortmp;          /* glyph & attribute behind software cursor */
      41             : #endif
      42             :         int vc_ccol, vc_crow;   /* current cursor position */
      43             : 
      44             :         int dispoffset;         /* offset of displayed area in video mem */
      45             :         int visibleoffset;
      46             : };
      47             : 
      48             : struct pcdisplay_handle {
      49             :         bus_space_tag_t ph_iot, ph_memt;
      50             :         bus_space_handle_t ph_ioh_6845, ph_memh;
      51             : };
      52             : 
      53             : static inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *, int);
      54             : static inline void _pcdisplay_6845_write(struct pcdisplay_handle *,
      55             :                                               int, u_int8_t);
      56             : 
      57             : static inline u_int8_t
      58           0 : _pcdisplay_6845_read(struct pcdisplay_handle *ph, int reg)
      59             : {
      60           0 :         bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
      61           0 :         return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA));
      62             : }
      63             : 
      64             : static inline void
      65           0 : _pcdisplay_6845_write(struct pcdisplay_handle *ph, int reg, u_int8_t val)
      66             : {
      67           0 :         bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
      68           0 :         bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
      69           0 : }
      70             : 
      71             : #define pcdisplay_6845_read(ph, reg) \
      72             :         _pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
      73             : #define pcdisplay_6845_write(ph, reg, val) \
      74             :         _pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
      75             : 
      76             : void    pcdisplay_cursor_init(struct pcdisplayscreen *, int);
      77             : void    pcdisplay_cursor_reset(struct pcdisplayscreen *);
      78             : int     pcdisplay_cursor(void *, int, int, int);
      79             : int     pcdisplay_mapchar(void *, int, unsigned int *);
      80             : int     pcdisplay_putchar(void *, int, int, u_int, long);
      81             : struct wsdisplay_charcell;
      82             : int     pcdisplay_getchar(void *, int, int, struct wsdisplay_charcell *);
      83             : int     pcdisplay_copycols(void *, int, int, int,int);
      84             : int     pcdisplay_erasecols(void *, int, int, int, long);
      85             : int     pcdisplay_copyrows(void *, int, int, int);
      86             : int     pcdisplay_eraserows(void *, int, int, long);