/*      $NetBSD: gboxreg.h,v 1.2 2011/02/12 16:40:29 tsutsui Exp $      */
/*      $OpenBSD: gboxreg.h,v 1.2 2005/01/24 21:36:39 miod Exp $        */
/*      NetBSD: grf_gbreg.h,v 1.4 1994/10/26 07:23:53 cgd 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 $Hdr: grf_gbreg.h 1.11 92/01/21$
 *
 *      @(#)grf_gbreg.h 8.1 (Berkeley) 6/10/93
 */

/*
 * Gatorbox driver regs
 */

#define TILER_ENABLE            0x80
#define LINE_MOVER_ENABLE       0x80
#define UP_LEFT                 0x00
#define DOWN_RIGHT              0x40
#define MOVE_UP_LEFT            (TILER_ENABLE | UP_LEFT)
#define MOVE_DOWN_RIGHT         (TILER_ENABLE | DOWN_RIGHT)

#define tile_mover_waitbusy(regaddr)                                    \
do {                                                                    \
        while (((volatile struct gboxfb *)(regaddr))->regs.sec_interrupt & 0x10) \
                DELAY(1);                                               \
} while (/* CONSTCOND */0)

#define line_mover_waitbusy(regaddr)                                    \
do {                                                                    \
        while ((((volatile struct gboxfb *)(regaddr))->status & 0x80) == 0) \
                DELAY(1);                                               \
} while (/* CONSTCOND */0)

#define gbcm_waitbusy(regaddr)                                          \
do {                                                                    \
        while (((volatile struct gboxfb *)(regaddr))->cmap_busy != 0xff) \
                DELAY(1);                                               \
} while (/* CONSTCOND */0)

struct gboxfb {
        struct diofbreg regs;
        uint8_t f2[0x4000-0x5f-1];
        uint8_t crtc_address;           /* CTR controller address reg 0x4000 */
        uint8_t status;                 /* Status register            0x4001 */
        uint8_t crtc_data;              /* CTR controller data reg    0x4002 */
        uint8_t f3[6];
        uint8_t line_mover_rep_rule;    /* Line move rep rule                */
        uint8_t :8, :8;
        uint8_t line_mover_width;       /* Line move width                   */
        uint8_t f4[0xff3];
        uint8_t width;                  /* width in tiles             0x5001 */
        uint8_t :8;
        uint8_t height;                 /* height in tiles            0x5003 */
        uint8_t f5[3];
        uint8_t rep_rule;               /* replacement rule           0x5007 */
        uint8_t f6[0x6001-0x5007-1];
        uint8_t blink1;                 /* blink 1                    0x6001 */
        uint8_t f7[3];
        uint8_t blink2;                 /* blink 2                    0x6005 */
        uint8_t f8[3];
        uint8_t write_protect;          /* write protect              0x6009 */
        uint8_t f9[0x6803-0x6009-1];
        uint8_t cmap_busy;              /* color map busy             0x6803 */
        uint8_t f10[0x68b9-0x6803-1];
        uint8_t creg_select;            /* color map register select  0x68b8 */
        uint8_t f11[0x68f1-0x68b9-1];
        uint8_t cmap_write;             /* color map write trigger    0x68f1 */
        uint8_t f12[0x69b3-0x68f1-1];
        uint8_t cmap_red;               /* red value register         0x69b3 */
        uint8_t :8;
        uint8_t cmap_grn;               /* green value register       0x69b5 */
        uint8_t :8;
        uint8_t cmap_blu;               /* blue value register        0x69b6 */
};