* Copyright (c) 2005, Miodrag Vallat

/* $NetBSD: diofbvar.h,v 1.5 2024/05/01 19:28:33 tsutsui Exp $ */
/* $OpenBSD: diofbvar.h,v 1.10 2006/08/11 18:33:13 miod Exp $ */

/*
* Copyright (c) 2005, Miodrag Vallat
*
* 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 AUTHOR ``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 AUTHOR 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.
*/
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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. 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.
*
* from: Utah $Hdr: grfvar.h 1.11 93/08/13$
*
* @(#)grfvar.h 8.2 (Berkeley) 9/9/93
*/

#ifdef _KERNEL

struct diocmap {
uint8_t r[256], g[256], b[256];
};

/*
* Minimal frame buffer state structure.
*/
struct diofb {
uint8_t *regkva; /* KVA of registers */
uint8_t *fbkva; /* KVA of framebuffer */

uint8_t *regaddr; /* control registers physaddr */
uint8_t *fbaddr; /* frame buffer physaddr */

u_int fbsize; /* frame buffer size */
u_int fbwidth; /* frame buffer width */
u_int fbheight; /* frame buffer height */
u_int dwidth; /* displayed part width */
u_int dheight; /* displayed part height */

u_int planes; /* number of planes */
u_int planemask; /* and related mask */

/* rasops information */
struct rasops_info ri;

/* color information */
struct diocmap cmap;

/* wsdisplay information */
char wsdname[32];
struct wsscreen_descr wsd;
struct wsscreen_list wsl;
struct wsscreen_descr *scrlist[1];
int nscreens;
u_int mapmode;

/* blockmove routine */
int (*bmv)(struct diofb *, uint16_t, uint16_t, uint16_t,
uint16_t, uint16_t, uint16_t, int16_t, int16_t);

/* putchar routine to handle rasops; MD busywait might be required */
void (*wsputchar)(void *, int, int, u_int, long);
};

/* Replacement Rules (rops) */
#define RR_CLEAR 0x0
#define RR_COPY 0x3
#define RR_XOR 0x6
#define RR_INVERT 0xa
#define RR_COPYINVERTED 0xc

void diofb_cnattach(struct diofb *);
void diofb_end_attach(device_t, struct wsdisplay_accessops *, struct diofb *,
int, const char *);
int diofb_fbinquire(struct diofb *, int, struct diofbreg *);
void diofb_fbsetup(struct diofb *);
int diofb_getcmap(struct diofb *, struct wsdisplay_cmap *);
void diofb_resetcmap(struct diofb *);

int diofb_alloc_attr(void *, int, int, int, long *);
int diofb_alloc_screen(void *, const struct wsscreen_descr *, void **,
int *, int *, long *);
void diofb_free_screen(void *, void *);
paddr_t diofb_mmap(void *, void *, off_t, int);
int diofb_show_screen(void *, void *, int, void (*)(void *, int, int),
void *);

int diofb_mono_windowmove(struct diofb *, uint16_t, uint16_t, uint16_t,
uint16_t, uint16_t, uint16_t, int16_t, int16_t);

/* Console support */
int dvboxcnattach(bus_space_tag_t, bus_addr_t, int);
int gboxcnattach(bus_space_tag_t, bus_addr_t, int);
int hypercnattach(bus_space_tag_t, bus_addr_t, int);
int rboxcnattach(bus_space_tag_t, bus_addr_t, int);
int topcatcnattach(bus_space_tag_t, bus_addr_t, int);
int tvrxcnattach(bus_space_tag_t, bus_addr_t, int);
int gendiofbcnattach(bus_space_tag_t, bus_addr_t, int);
extern struct diofb diofb_cn; /* struct diofb for console device */

#endif

/*
* In mapped mode, mmap() will provide the following layout:
* 0 - (DIOFB_REGSPACE - 1) frame buffer registers
* DIOFB_REGSPACE onwards frame buffer memory
*/
#define DIOFB_REGSPACE 0x020000