/*      $NetBSD: igsfbvar.h,v 1.20 2011/07/26 08:59:37 mrg Exp $ */

/*
* Copyright (c) 2002, 2003 Valeriy E. Ushakov
* 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. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission
*
* 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.
*/

/*
* Integraphics Systems IGA 168x and CyberPro series.
*/
#ifndef _DEV_IC_IGSFBVAR_H_
#define _DEV_IC_IGSFBVAR_H_

#include <dev/videomode/videomode.h>

#define IGS_CMAP_SIZE   256     /* 256 R/G/B entries */
struct igs_hwcmap {
       uint8_t r[IGS_CMAP_SIZE];
       uint8_t g[IGS_CMAP_SIZE];
       uint8_t b[IGS_CMAP_SIZE];
};


#define IGS_CURSOR_MAX_SIZE 64  /* 64x64 sprite */
struct igs_hwcursor {
       struct wsdisplay_curpos cc_pos;
       struct wsdisplay_curpos cc_hot;
       struct wsdisplay_curpos cc_size;
       uint8_t cc_image[512];          /* save copy of image for GCURSOR */
       uint8_t cc_mask[512];           /* save copy of mask for GCURSOR */
       uint16_t cc_sprite[512];        /* sprite in device 2bpp format */
       uint8_t cc_color[6];            /* 2 colors, 3 rgb components */
};


struct igsfb_devconfig {
       /* io space, may be memory mapped */
       bus_space_tag_t dc_iot;
       bus_addr_t dc_iobase;
       int dc_ioflags;

       /* io registers */
       bus_space_handle_t dc_ioh;

       /* graphic coprocessor */
       bus_space_handle_t dc_coph;

       /* linear memory */
       bus_space_tag_t dc_memt;
       bus_addr_t dc_memaddr;
       bus_size_t dc_memsz; /* size of linear address space including mmio */
       int dc_memflags;

       /* video memory size */
       bus_size_t dc_vmemsz;

       /* resolution */
       int dc_width, dc_height, dc_depth, dc_stride;
       int dc_maxdepth;
       const struct videomode *dc_mode;

       char dc_modestring[128];

       /* part of video memory mapped for wsscreen */
       bus_space_handle_t dc_fbh;
       bus_size_t dc_fbsz;

       /* 1KB of cursor sprite data */
       bus_space_handle_t dc_crh;

       /* product id: IGA 168x, CyberPro 2k &c */
       int dc_id;

       /* flags that control driver operation */
       int dc_hwflags;
#define IGSFB_HW_BSWAP                  0x1 /* endianness mismatch */
#define IGSFB_HW_BE_SELECT              0x2 /* big endian magic (cyberpro) */
#define IGSFB_HW_TEXT_CURSOR            0x4 /* do text cursor in hardware */

/* do we need to do bswap in software? */
#define IGSFB_HW_SOFT_BSWAP(dc)                                         \
       ((((dc)->dc_hwflags) & (IGSFB_HW_BSWAP | IGSFB_HW_BE_SELECT))   \
               == IGSFB_HW_BSWAP)

       int dc_blanked;                 /* screen is currently blanked */
       int dc_curenb;                  /* cursor sprite enabled */
       int dc_mapped;                  /* currently in mapped mode */

       /* saved dc_ri.ri_ops.putchar */
       void (*dc_ri_putchar)(void *, int, int, u_int, long);

       /* optional MD mmap() method */
       paddr_t (*dc_mmap)(void *, void *, off_t, int);

       struct igs_hwcmap dc_cmap;      /* software copy of colormap */
       struct igs_hwcursor dc_cursor;  /* software copy of cursor sprite */

       /* precomputed bit table for cursor sprite 1bpp -> 2bpp conversion */
       uint16_t dc_bexpand[256];

       /* virtual console support */
       struct vcons_data dc_vd;
       struct vcons_screen dc_console;
};


struct igsfb_softc {
       device_t sc_dev;
       struct igsfb_devconfig *sc_dc;
};



/*
* Access sugar for indexed registers
*/

static __inline uint8_t
igs_idx_read(bus_space_tag_t, bus_space_handle_t, u_int, uint8_t);
static __inline void
igs_idx_write(bus_space_tag_t, bus_space_handle_t, u_int, uint8_t, uint8_t);

static __inline uint8_t
igs_idx_read(bus_space_tag_t t, bus_space_handle_t h,
            u_int idxport, uint8_t idx)
{
       bus_space_write_1(t, h, idxport, idx);
       return (bus_space_read_1(t, h, idxport + 1));
}

static __inline void
igs_idx_write(bus_space_tag_t t, bus_space_handle_t h,
             u_int idxport, uint8_t idx, uint8_t val)
{
       bus_space_write_1(t, h, idxport, idx);
       bus_space_write_1(t, h, idxport + 1, val);
}


/* sugar for sequencer controller */
#define igs_seq_read(t,h,x)     \
       (igs_idx_read((t),(h),IGS_SEQ_IDX,(x)))
#define igs_seq_write(t,h,x,v)  \
       (igs_idx_write((t),(h),IGS_SEQ_IDX,(x),(v)))


/* sugar for CRT controller */
#define igs_crtc_read(t,h,x)    \
       (igs_idx_read((t),(h),IGS_CRTC_IDX,(x)))
#define igs_crtc_write(t,h,x,v) \
       (igs_idx_write((t),(h),IGS_CRTC_IDX,(x),(v)))


/* sugar for attribute controller */
#define igs_attr_flip_flop(t,h) \
       ((void)bus_space_read_1((t),(h),IGS_INPUT_STATUS1));
#define igs_attr_read(t,h,x)    \
       (igs_idx_read((t),(h),IGS_ATTR_IDX,(x)))

static __inline void
igs_attr_write(bus_space_tag_t, bus_space_handle_t, uint8_t, uint8_t);

static __inline void
igs_attr_write(bus_space_tag_t t, bus_space_handle_t h,
              uint8_t idx, uint8_t val)
{
       bus_space_write_1(t, h, IGS_ATTR_IDX, idx);
       bus_space_write_1(t, h, IGS_ATTR_IDX, val); /* sic, same register */
}


/* sugar for graphics controller registers */
#define igs_grfx_read(t,h,x)    (igs_idx_read((t),(h),IGS_GRFX_IDX,(x)))
#define igs_grfx_write(t,h,x,v) (igs_idx_write((t),(h),IGS_GRFX_IDX,(x),(v)))


/* sugar for extended registers */
#define igs_ext_read(t,h,x)     (igs_idx_read((t),(h),IGS_EXT_IDX,(x)))
#define igs_ext_write(t,h,x,v)  (igs_idx_write((t),(h),IGS_EXT_IDX,(x),(v)))


/* igsfb_subr.c */
int     igsfb_enable(bus_space_tag_t, bus_addr_t, int);
void    igsfb_hw_setup(struct igsfb_devconfig *);
void    igsfb_1024x768_8bpp_60Hz(struct igsfb_devconfig *);
void    igsfb_set_mode(struct igsfb_devconfig *, const struct videomode *, int);

/* igsfb.c */
int     igsfb_cnattach_subr(struct igsfb_devconfig *);
void    igsfb_attach_subr(struct igsfb_softc *, int);


extern struct igsfb_devconfig igsfb_console_dc;

#endif /* _DEV_IC_IGSFBVAR_H_ */

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.