/*      $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);