FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/igsfbvar.h

     /*      $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_ */

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