root/sys/arch/sparc/dev/cgfourteenvar.h
/*      $NetBSD: cgfourteenvar.h,v 1.20 2026/07/13 08:42:06 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 */
        int     sc_fbdepth;     /* colour depth to be used in MODE_MAPPED */
#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_PSEUDO_VOFF        0x10800000      /* RAM for SX use if available */
#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