/*      $NetBSD: itevar.h,v 1.18 2025/05/30 19:19:26 tsutsui Exp $      */

/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* from: Utah $Hdr: itevar.h 1.15 92/12/20$
*
*      @(#)itevar.h    8.1 (Berkeley) 6/10/93
*/

/*
* Standalone version of hp300 ITE.
*/

#define getbyte(ip, offset) \
       *(((u_char *)(ip)->regbase) + (offset))

#define getword(ip, offset) \
       ((getbyte(ip, offset) << 8) | getbyte(ip, (offset) + 2))

struct ite_data;

typedef void (*ite_windowmover)(struct ite_data *, int, int, int, int, int,
           int, int);

struct ite_data {
       int     alive;
       int     scode;                  /* DIO selectcode or SGC slot # */
       const struct itesw *isw;
       void    *regbase, *fbbase;
       short   curx, cury;
       short   cursorx, cursory;
       short   cblankx, cblanky;
       short   rows, cols;
       short   cpl;
       short   dheight, dwidth;
       short   fbheight, fbwidth;
       short   ftheight, ftwidth;
       short   fontx, fonty;
       short   planemask;
       ite_windowmover bmv;
};

struct itesw {
       int     ite_hwid;
       int     (*ite_probe)(struct ite_data *);
       void    (*ite_init)(struct ite_data *);
       void    (*ite_clear)(struct ite_data *, int, int, int, int);
       void    (*ite_putc)(struct ite_data *, int, int, int);
       void    (*ite_cursor)(struct ite_data *, int);
       void    (*ite_scroll)(struct ite_data *);
};

/*
* X and Y location of character 'c' in the framebuffer, in pixels.
*/
#define charX(ip,c)     \
       (((c) % (ip)->cpl) * (ip)->ftwidth + (ip)->fontx)

#define charX1bpp(ip,c) \
       (((c) % (ip)->cpl) * ((((ip)->ftwidth + 7) / 8) * 8) + (ip)->fontx)

#define charY(ip,c)     \
       (((c) / (ip)->cpl) * (ip)->ftheight + (ip)->fonty)

/* Replacement Rules */
#define RR_CLEAR                0x0
#define RR_COPY                 0x3
#define RR_XOR                  0x6
#define RR_COPYINVERTED         0xc

#define DRAW_CURSOR     0x05
#define ERASE_CURSOR    0x06
#define MOVE_CURSOR     0x07

#define KBD_SSHIFT      4               /* bits to shift status */
#define KBD_CHARMASK    0x7F

/* keyboard status */
#define KBD_SMASK       0xF             /* service request status mask */
#define KBD_CTRLSHIFT   0x8             /* key + CTRL + SHIFT */
#define KBD_CTRL        0x9             /* key + CTRL */
#define KBD_SHIFT       0xA             /* key + SHIFT */
#define KBD_KEY         0xB             /* key only */

/*
* Prototypes.
*/
void ite_fontinfo(struct ite_data *);
void ite_fontinit1bpp(struct ite_data *);
void ite_fontinit8bpp(struct ite_data *);
void ite_dio_clear(struct ite_data *, int, int, int, int);
void ite_dio_cursor(struct ite_data *, int);
void ite_dio_putc1bpp(struct ite_data *, int, int, int);
void ite_dio_putc8bpp(struct ite_data *, int, int, int);
void ite_dio_scroll(struct ite_data *);
void ite_dio_windowmove1bpp(struct ite_data *, int, int, int, int,
   int, int, int);

/*
* Framebuffer-specific ITE prototypes.
*/
void topcat_init(struct ite_data *);
void gbox_init(struct ite_data *);
void gbox_scroll(struct ite_data *);
void rbox_init(struct ite_data *);
void dvbox_init(struct ite_data *);
void hyper_init(struct ite_data *);
void tvrx_init(struct ite_data *);

int  sti_dio_probe(struct ite_data *);
void sti_iteinit_dio(struct ite_data *);
void sti_iteinit_sgc(struct ite_data *);
void sti_cursor(struct ite_data *, int);
void sti_putc(struct ite_data *, int, int, int);
void sti_clear(struct ite_data *, int, int, int, int);
void sti_scroll(struct ite_data *);