/*      $NetBSD: cgfourteenvar.h,v 1.19 2021/12/17 19:27:57 macallan Exp $ */

/*
* Copyright (c) 1996
*      The President and Fellows of Harvard College. All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by Harvard University and
*      its contributors.
* 4. 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.
*/

#include <sys/ioccom.h>

struct sbus_reg {
       uint32_t        sbr_slot;
       uint32_t        sbr_offset;
       uint32_t        sbr_size;
};
/*
* Layout of cg14 hardware colormap
*/
union cg14cmap {
       u_char          cm_map[256][4]; /* 256 R/G/B/A entries (B is high)*/
       uint32_t        cm_chip[256];   /* the way the chip gets loaded */
};

/*
* cg14 hardware cursor colormap
*/
union cg14cursor_cmap {         /* colormap, like bt_cmap, but tiny */
       u_char          cm_map[2][4];   /* 2 R/G/B/A entries */
       uint32_t        cm_chip[2];     /* 2 chip equivalents */
};

/*
* cg14 hardware cursor status
*/
struct cg14_cursor {            /* cg14 hardware cursor status */
       int     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 */
       uint    cc_eplane[32];          /* enable plane */
       uint    cc_cplane[32];          /* color plane */
       union   cg14cursor_cmap cc_color; /* cursor colormap */
};

#define CG14_SET_PIXELMODE      _IOW('M', 3, int)

/*
* per-cg14 variables/state
*/
struct cgfourteen_softc {
       device_t        sc_dev;         /* base device */
       struct fbdevice sc_fb;          /* frame buffer device */
       bus_space_tag_t sc_bustag;
       struct sbus_reg sc_physadr[2];  /* phys addrs of h/w */
       bus_space_handle_t sc_regh;     /* register space */
#define CG14_CTL_IDX    0
#define CG14_PXL_IDX    1

       union   cg14cmap sc_cmap;       /* current colormap */
       struct  cg14_cursor sc_cursor;  /* Hardware cursor state */
       union   cg14cmap sc_saveclut;   /* a place to stash PROM state */
       size_t  sc_vramsize;
       int     sc_depth;       /* current colour depth */
#if NWSDISPLAY > 0
       struct  vcons_data sc_vd;
       struct  vcons_screen sc_console_screen;
       struct  wsscreen_descr sc_defaultscreen_descr;
       const struct wsscreen_descr *sc_screens[1];
       struct  wsscreen_list sc_screenlist;
       int     sc_mode;        /* wsdisplay mode - EMUL, DUMB etc. */
#if NSX > 0
       struct sx_softc *sc_sx;
       uint32_t sc_fb_paddr;
       uint32_t sc_mask;
       glyphcache sc_gc;
#endif /* NSX > 0 */
#endif

       uint8_t sc_savexlut[256];
       uint8_t sc_savectl;
       uint8_t sc_savehwc;

       struct  cg14ctl  *sc_ctl;       /* various registers */
       struct  cg14curs *sc_hwc;
       struct  cg14dac  *sc_dac;
       struct  cg14xlut *sc_xlut;
       struct  cg14clut *sc_clut1;
       struct  cg14clut *sc_clut2;
       struct  cg14clut *sc_clut3;
       uint    *sc_clutincr;
       int     sc_opens;
       off_t   sc_regaddr, sc_fbaddr;
};

/* Various offsets in virtual (ie. mmap()) spaces Linux and Solaris support. */
#define CG14_REGS_VOFF          0x00000000      /* registers */
#define CG14_XLUT_VOFF          0x00003000      /* X Look Up Table */
#define CG14_CLUT1_VOFF         0x00004000      /* Color Look Up Table */
#define CG14_CLUT2_VOFF         0x00005000      /* Color Look Up Table */
#define CG14_CLUT3_VOFF         0x00006000      /* Color Look Up Table */
#define CG14_SXREG_VOFF         0x00010000      /* SX userspace registers */
#define CG14_DIRECT_VOFF        0x10000000
#define CG14_CTLREG_VOFF        0x20000000
#define CG14_CURSOR_VOFF        0x30000000
#define CG14_SHDW_VRT_VOFF      0x40000000
#define CG14_XBGR_VOFF          0x50000000
#define CG14_BGR_VOFF           0x60000000
#define CG14_X16_VOFF           0x70000000
#define CG14_C16_VOFF           0x80000000
#define CG14_X32_VOFF           0x90000000
#define CG14_B32_VOFF           0xa0000000
#define CG14_G32_VOFF           0xb0000000
#define CG14_R32_VOFF           0xc0000000
#define CG14_SXIO_VOFF          0xd0000000