/* $NetBSD: omrasopsvar.h,v 1.8 2022/10/03 17:42:35 tsutsui Exp $ */
/*
 * Copyright (c) 2013 Kenji Aoyama
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <machine/board.h>

/*
 * Base addresses of LUNA's frame buffer
 * XXX: We consider only 1bpp and 4bpp for now
 */

#define OMFB_PLANEMASK          BMAP_BMSEL      /* BMSEL register */
#define OMFB_ROP_COMMON         BMAP_FN         /* common ROP */
#define OMFB_ROP_P0             BMAP_FN0

/* will be merged in near future */
#define OMFB_ROPFUNC            BMAP_FN         /* common ROP function */

#define OMFB_MAX_PLANECOUNT     (8)
#define OMFB_PLANEOFFS          (0x40000)       /* plane offset */
#define OMFB_STRIDE             (2048/8)        /* stride [byte] */

/* TODO: should be improved... */
extern int hwplanemask;

/*
 * ROP function
 *
 * LUNA's frame buffer uses Hitachi HM53462 video RAM, which has raster
 * (logic) operation, or ROP, function.  To use ROP function on LUNA, write
 * a 32bit `mask' value to the specified address corresponding to each ROP
 * logic.
 *
 * D: the data writing to the video RAM
 * M: the data already stored on the video RAM
 */

/* operation            index   the video RAM contents will be */
#define ROP_ZERO         0      /* all 0        */
#define ROP_AND1         1      /* D & M        */
#define ROP_AND2         2      /* ~D & M       */
/* Not used on LUNA      3                      */
#define ROP_AND3         4      /* D & ~M       */
#define ROP_THROUGH      5      /* D            */
#define ROP_EOR          6      /* (~D & M) | (D & ~M)  */
#define ROP_OR1          7      /* D | M        */
#define ROP_NOR          8      /* ~D | ~M      */
#define ROP_ENOR         9      /* (D & M) | (~D & ~M)  */
#define ROP_INV1        10      /* ~D           */
#define ROP_OR2         11      /* ~D | M       */
#define ROP_INV2        12      /* ~M           */
#define ROP_OR3         13      /* D | ~M       */
#define ROP_NAND        14      /* ~D | ~M      */
#define ROP_ONE         15      /* all 1        */

int omrasops1_init(struct rasops_info *, int, int);
int omrasops4_init(struct rasops_info *, int, int);