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      1 /*	$NetBSD: cgfourteenvar.h,v 1.19 2021/12/17 19:27:57 macallan Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1996
      5  *	The President and Fellows of Harvard College. All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Harvard University and
     18  *	its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/ioccom.h>
     37 
     38 struct sbus_reg {
     39 	uint32_t	sbr_slot;
     40 	uint32_t	sbr_offset;
     41 	uint32_t	sbr_size;
     42 };
     43 /*
     44  * Layout of cg14 hardware colormap
     45  */
     46 union cg14cmap {
     47 	u_char  	cm_map[256][4];	/* 256 R/G/B/A entries (B is high)*/
     48 	uint32_t   	cm_chip[256];	/* the way the chip gets loaded */
     49 };
     50 
     51 /*
     52  * cg14 hardware cursor colormap
     53  */
     54 union cg14cursor_cmap {		/* colormap, like bt_cmap, but tiny */
     55 	u_char		cm_map[2][4];	/* 2 R/G/B/A entries */
     56 	uint32_t	cm_chip[2];	/* 2 chip equivalents */
     57 };
     58 
     59 /*
     60  * cg14 hardware cursor status
     61  */
     62 struct cg14_cursor {		/* cg14 hardware cursor status */
     63 	int	cc_enable;		/* cursor is enabled */
     64 	struct	fbcurpos cc_pos;	/* position */
     65 	struct	fbcurpos cc_hot;	/* hot-spot */
     66 	struct	fbcurpos cc_size;	/* size of mask & image fields */
     67 	uint	cc_eplane[32];		/* enable plane */
     68 	uint	cc_cplane[32];		/* color plane */
     69 	union	cg14cursor_cmap cc_color; /* cursor colormap */
     70 };
     71 
     72 #define CG14_SET_PIXELMODE	_IOW('M', 3, int)
     73 
     74 /*
     75  * per-cg14 variables/state
     76  */
     77 struct cgfourteen_softc {
     78 	device_t	sc_dev;		/* base device */
     79 	struct fbdevice	sc_fb;		/* frame buffer device */
     80 	bus_space_tag_t	sc_bustag;
     81 	struct sbus_reg	sc_physadr[2];	/* phys addrs of h/w */
     82 	bus_space_handle_t sc_regh;	/* register space */
     83 #define CG14_CTL_IDX	0
     84 #define CG14_PXL_IDX	1
     85 
     86 	union	cg14cmap sc_cmap;	/* current colormap */
     87 	struct	cg14_cursor sc_cursor;	/* Hardware cursor state */
     88 	union 	cg14cmap sc_saveclut; 	/* a place to stash PROM state */
     89 	size_t	sc_vramsize;
     90 	int 	sc_depth;	/* current colour depth */
     91 #if NWSDISPLAY > 0
     92 	struct  vcons_data sc_vd;
     93 	struct 	vcons_screen sc_console_screen;
     94 	struct 	wsscreen_descr sc_defaultscreen_descr;
     95 	const struct wsscreen_descr *sc_screens[1];
     96 	struct 	wsscreen_list sc_screenlist;
     97 	int 	sc_mode;	/* wsdisplay mode - EMUL, DUMB etc. */
     98 #if NSX > 0
     99 	struct sx_softc *sc_sx;
    100 	uint32_t sc_fb_paddr;
    101 	uint32_t sc_mask;
    102 	glyphcache sc_gc;
    103 #endif /* NSX > 0 */
    104 #endif
    105 
    106 	uint8_t	sc_savexlut[256];
    107 	uint8_t	sc_savectl;
    108 	uint8_t	sc_savehwc;
    109 
    110 	struct	cg14ctl  *sc_ctl; 	/* various registers */
    111 	struct	cg14curs *sc_hwc;
    112 	struct 	cg14dac	 *sc_dac;
    113 	struct	cg14xlut *sc_xlut;
    114 	struct 	cg14clut *sc_clut1;
    115 	struct	cg14clut *sc_clut2;
    116 	struct	cg14clut *sc_clut3;
    117 	uint	*sc_clutincr;
    118 	int	sc_opens;
    119 	off_t	sc_regaddr, sc_fbaddr;
    120 };
    121 
    122 /* Various offsets in virtual (ie. mmap()) spaces Linux and Solaris support. */
    123 #define CG14_REGS_VOFF		0x00000000	/* registers */
    124 #define CG14_XLUT_VOFF		0x00003000	/* X Look Up Table */
    125 #define CG14_CLUT1_VOFF		0x00004000	/* Color Look Up Table */
    126 #define CG14_CLUT2_VOFF		0x00005000	/* Color Look Up Table */
    127 #define CG14_CLUT3_VOFF		0x00006000	/* Color Look Up Table */
    128 #define CG14_SXREG_VOFF		0x00010000	/* SX userspace registers */
    129 #define CG14_DIRECT_VOFF	0x10000000
    130 #define CG14_CTLREG_VOFF	0x20000000
    131 #define CG14_CURSOR_VOFF	0x30000000
    132 #define CG14_SHDW_VRT_VOFF	0x40000000
    133 #define CG14_XBGR_VOFF		0x50000000
    134 #define CG14_BGR_VOFF		0x60000000
    135 #define CG14_X16_VOFF		0x70000000
    136 #define CG14_C16_VOFF		0x80000000
    137 #define CG14_X32_VOFF		0x90000000
    138 #define CG14_B32_VOFF		0xa0000000
    139 #define CG14_G32_VOFF		0xb0000000
    140 #define CG14_R32_VOFF		0xc0000000
    141 #define CG14_SXIO_VOFF		0xd0000000
    142