/*      $OpenBSD: stivar.h,v 1.29 2024/08/17 08:45:22 miod Exp $        */

/*
 * Copyright (c) 2000-2003 Michael Shalayeff
 * 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.
 *
 * 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 OR HIS RELATIVES 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 MIND, 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.
 */

#ifndef _IC_STIVAR_H_
#define _IC_STIVAR_H_

struct sti_softc;
struct sti_screen;

/*
 * STI ROM information - one per device
 */
struct sti_rom {
        struct sti_softc        *rom_softc;     /* backpointer to device */
        int                      rom_devtype;

        bus_space_tag_t          iot, memt;     /* XXX iot unused */
        bus_space_handle_t       romh;
        bus_space_handle_t       regh[STI_REGION_MAX];
        bus_addr_t              *bases;

        struct sti_dd            rom_dd;        /* in word format */
        u_int8_t                *rom_code;

        int                      rom_enable;

        /*
         * ROM-provided function pointers
         */
        sti_init_t               init;
        sti_unpmv_t              unpmv;
        sti_blkmv_t              blkmv;
        sti_inqconf_t            inqconf;
        sti_scment_t             scment;
};

/*
 * STI screen information - one per head
 */
struct sti_screen {
        struct sti_rom          *scr_rom;

#ifdef notyet
        u_int                    scr_flags;
#endif

        int                      scr_bpp;

        struct sti_font          scr_curfont;
        struct sti_cfg           scr_cfg;
        struct sti_ecfg          scr_ecfg;
        u_int8_t                 name[STI_DEVNAME_LEN];

        void                    *scr_romfont;   /* ROM font copy in memory... */
        u_int                    scr_fontmaxcol;/* ...or in off-screen area */
        u_int                    scr_fontbase;

        u_int8_t                 scr_rcmap[STI_NCMAP],
                                 scr_gcmap[STI_NCMAP],
                                 scr_bcmap[STI_NCMAP];

        u_int16_t                fbheight, fbwidth;
        u_int16_t                oheight, owidth;       /* offscreen size */
        bus_addr_t               fbaddr;
        bus_size_t               fblen;

        /* wsdisplay information */
        int                      scr_nscreens;
        u_int                    scr_wsmode;
        struct  wsscreen_descr   scr_wsd;
        struct  wsscreen_descr  *scr_scrlist[1];
        struct  wsscreen_list    scr_screenlist;

        /*
         * Board-specific function data and pointers
         */
        void                    (*setupfb)(struct sti_screen *);
        int                     (*putcmap)(struct sti_screen *, u_int, u_int);

        uint32_t                reg10_value;
        uint32_t                reg12_value;
        bus_addr_t              cmap_finish_register;
};

/*
 * STI device state
 */
struct sti_softc {
        struct device            sc_dev;
#ifdef notyet
        void                    *sc_ih;
#endif

        u_int                    sc_flags;
#define STI_CONSOLE     0x0001  /* first head is console... */
#define STI_ATTACHED    0x0002  /* ... and wsdisplay_cnattach() has been done */
#define STI_ROM_ENABLED 0x0004  /* PCI ROM is enabled */

        bus_addr_t               bases[STI_REGION_MAX];
        struct sti_rom          *sc_rom;
        struct sti_screen       *sc_scr;

        /* optional, required for PCI */
        void                    (*sc_enable_rom)(struct sti_softc *);
        void                    (*sc_disable_rom)(struct sti_softc *);
};

int     sti_attach_common(struct sti_softc *, bus_space_tag_t, bus_space_tag_t,
            bus_space_handle_t, u_int);
void    sti_describe(struct sti_softc *);
void    sti_end_attach(void *);
u_int   sti_rom_size(bus_space_tag_t, bus_space_handle_t);

#endif /* _IC_STIVAR_H_ */