/*      $NetBSD: cgsixvar.h,v 1.14 2016/04/21 18:06:06 macallan Exp $ */

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Paul Kranenburg.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include "wsdisplay.h"
#include <dev/wscons/wsdisplay_vconsvar.h>
#include <dev/wscons/wsdisplay_glyphcachevar.h>

/*
 * color display (cgsix) driver; common definitions.
 */

union cursor_cmap {             /* colormap, like bt_cmap, but tiny */
        u_char  cm_map[2][3];   /* 2 R/G/B entries */
        u_int   cm_chip[2];     /* 2 chip equivalents */
};

struct cg6_cursor {             /* cg6 hardware cursor status */
        short   cc_enable;              /* cursor is enabled */
        struct  fbcurpos cc_pos;        /* position */
        struct  fbcurpos cc_hot;        /* hot-spot */
        struct  fbcurpos cc_size;       /* size of mask & image fields */
        u_int   cc_bits[2][32];         /* space for mask & image bits */
        union   cursor_cmap cc_color;   /* cursor colormap */
};

/* per-display variables */
struct cgsix_softc {
        device_t        sc_dev;         /* base device */
        struct fbdevice sc_fb;          /* frame buffer device */
        bus_space_tag_t sc_bustag;
        bus_addr_t      sc_paddr;       /* phys address for device mmap() */

        volatile struct bt_regs *sc_bt;         /* Brooktree registers */
        volatile int *sc_fhc;                   /* FHC register */
        volatile struct cg6_thc *sc_thc;        /* THC registers */
        volatile struct cg6_tec_xxx *sc_tec;    /* TEC registers */
        volatile struct cg6_fbc *sc_fbc;        /* FBC registers */
        short   sc_fhcrev;              /* hardware rev */
        short   sc_blanked;             /* true if blanked */
        struct  cg6_cursor sc_cursor;   /* software cursor info */
        
        uint32_t sc_width;
        uint32_t sc_height;     /* display width / height */
        uint32_t sc_stride;
        uint32_t sc_mono_width; /* how many monochrome pixels to write */
        uint32_t sc_ramsize;            /* VRAM size in bytes */
        int sc_fb_is_open;
        int sc_mode;
        uint32_t sc_bg;
        struct vcons_data vd;
        uint8_t sc_default_cmap[768];
        glyphcache sc_gc;       
        union   bt_cmap sc_cmap;        /* Brooktree color map */
};

#define IS_IN_EMUL_MODE(sc) \
        ((sc->sc_fb_is_open == 0) && \
         (sc->sc_mode == WSDISPLAYIO_MODE_EMUL))

void    cg6attach(struct cgsix_softc *, const char *, int);