/*
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 */

/*
 * Copyright 2016 Toomas Soome <tsoome@me.com>
 */

#ifndef _GFXP_FB_H
#define _GFXP_FB_H

/*
 * gfxp_fb interfaces.
 */

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/framebuffer.h>
#include <sys/vgareg.h>
#include <sys/vgasubr.h>
#include <sys/gfx_private.h>

#define GFXP_FLAG_CONSOLE       0x00000001
#define GFXP_IS_CONSOLE(softc)  ((softc)->flags & GFXP_FLAG_CONSOLE)

struct gfxp_fb_softc;

struct gfxp_ops {
        const struct vis_identifier *ident;
        int (*kdsetmode)(struct gfxp_fb_softc *softc, int mode);
        int (*devinit)(struct gfxp_fb_softc *, struct vis_devinit *data);
        void (*cons_copy)(struct gfxp_fb_softc *, struct vis_conscopy *);
        void (*cons_display)(struct gfxp_fb_softc *, struct vis_consdisplay *);
        void (*cons_cursor)(struct gfxp_fb_softc *, struct vis_conscursor *);
        int (*cons_clear)(struct gfxp_fb_softc *, struct vis_consclear *);
        int (*suspend)(struct gfxp_fb_softc *softc);
        void (*resume)(struct gfxp_fb_softc *softc);
        int (*devmap)(dev_t, devmap_cookie_t, offset_t, size_t, size_t *,
            uint_t, void *);
};

struct vgareg {
        unsigned char vga_misc;                 /* Misc out reg */
        unsigned char vga_crtc[NUM_CRTC_REG];   /* Crtc controller */
        unsigned char vga_seq[NUM_SEQ_REG];     /* Video Sequencer */
        unsigned char vga_grc[NUM_GRC_REG];     /* Video Graphics */
        unsigned char vga_atr[NUM_ATR_REG];     /* Video Atribute */
};

struct gfx_vga {
        struct vgaregmap regs;
        struct vgaregmap fb;
        off_t fb_size;
        int fb_regno;
        caddr_t  text_base;     /* hardware text base */
        char shadow[VGA_TEXT_ROWS * VGA_TEXT_COLS * 2];
        caddr_t current_base;   /* hardware or shadow */
        char vga_fontslot;
        struct vgareg vga_reg;
        struct {
                boolean_t visible;
                int row;
                int col;
        } cursor;
        struct {
                unsigned char red;
                unsigned char green;
                unsigned char blue;
        } colormap[VGA8_CMAP_ENTRIES];
        unsigned char attrib_palette[VGA_ATR_NUM_PLT];
        struct font font;
};

union gfx_console {
        struct fb_info fb;
        struct gfx_vga vga;
};

struct gfxp_fb_softc {
        dev_info_t              *devi;
        int mode;               /* KD_TEXT or KD_GRAPHICS */
        enum gfxp_type          fb_type;
        unsigned int            flags;
        kmutex_t                lock;
        char                    silent;
        char                    happyface_boot;
        struct vis_polledio     polledio;
        struct gfxp_ops         *gfxp_ops;
        struct gfxp_blt_ops     blt_ops;
        struct fbgattr          *fbgattr;
        union gfx_console       *console;
};

/* function definitions */
int gfxp_bm_attach(dev_info_t *, struct gfxp_fb_softc *);
int gfxp_bm_detach(dev_info_t *, struct gfxp_fb_softc *);

int gfxp_vga_attach(dev_info_t *, struct gfxp_fb_softc *);
int gfxp_vga_detach(dev_info_t *, struct gfxp_fb_softc *);

#ifdef __cplusplus
}
#endif

#endif /* _GFXP_FB_H */