/*
   (c) Copyright 2001-2008  The world wide DirectFB Open Source Community (directfb.org)
   (c) Copyright 2000-2004  Convergence (integrated media) GmbH

   All rights reserved.

   Written by Denis Oliver Kropp <dok@directfb.org>,
              Andreas Hundt <andi@fischlustig.de>,
              Sven Neumann <neo@directfb.org>,
              Ville Syrjälä <syrjala@sci.fi> and
              Claudio Ciccani <klan@users.sf.net>.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef ___MATROX_H__
#define ___MATROX_H__

#include <dfb_types.h>

#include <core/layers.h>
#include <core/screens.h>

#define PCI_VENDOR_ID_MATROX            0x102B
#define PCI_DEVICE_ID_MATROX_2064W_PCI  0x0519
#define PCI_DEVICE_ID_MATROX_1064SG_PCI 0x051A
#define PCI_DEVICE_ID_MATROX_2164W_PCI  0x051B
#define PCI_DEVICE_ID_MATROX_1064SG_AGP 0x051E
#define PCI_DEVICE_ID_MATROX_2164W_AGP  0x051F
#define PCI_DEVICE_ID_MATROX_G100_PCI   0x1000
#define PCI_DEVICE_ID_MATROX_G100_AGP   0x1001
#define PCI_DEVICE_ID_MATROX_G200_PCI   0x0520
#define PCI_DEVICE_ID_MATROX_G200_AGP   0x0521
#define PCI_DEVICE_ID_MATROX_G400_AGP   0x0525
#define PCI_DEVICE_ID_MATROX_G550_AGP   0x2527

typedef enum {
     m_Source       = 0x0001,
     m_source       = 0x0002,

     m_drawColor    = 0x0010,
     m_blitColor    = 0x0020,
     m_color        = 0x0040,

     m_SrcKey       = 0x0100,
     m_srckey       = 0x0200,

     m_drawBlend    = 0x1000,
     m_blitBlend    = 0x2000,

     m_destination  = 0x4000,
     m_clip         = 0x8000,
} MatroxStateBits;

#define MGA_VALIDATE(b)       (mdev->valid |= (b))
#define MGA_INVALIDATE(b)     (mdev->valid &= ~(b))
#define MGA_IS_VALID(b)       (mdev->valid & (b))

typedef struct {
     /* Old cards are older than G200/G400, e.g. Mystique or Millennium */
     bool old_matrox;
     /* G450/G550  */
     bool g450_matrox;
     /* G550  */
     bool g550_matrox;

     /* FIFO Monitoring */
     unsigned int fifo_space;
     unsigned int waitfifo_sum;
     unsigned int waitfifo_calls;
     unsigned int fifo_waitcycles;
     unsigned int idle_waitcycles;
     unsigned int fifo_cache_hits;

     /* ATYPE_BLK or ATYPE_RSTR, depending on SGRAM setting */
     u32 atype_blk_rstr;

     /* State handling */
     MatroxStateBits valid;

     /* Stored values */
     int dst_pitch;
     int dst_offset[2][3];
     int src_pitch;
     int src_offset[2][3];
     int w, h, w2, h2;
     u32 color[3];

     bool draw_blend;
     bool blit_src_colorkey;

     bool blit_deinterlace;
     bool blit_fields;
     int field;

     bool depth_buffer;

     u32 texctl;

     u32 idle_status;

     DFBRegion clip;

     struct {
          unsigned long offset;
          unsigned long physical;
     } fb;
     unsigned int tlut_offset;
     CorePalette *rgb332_palette;

     bool crtc2_separated;
} MatroxDeviceData;

typedef struct {
     int            accelerator;
     int            maven_fd;
     volatile u8   *mmio_base;

     CoreScreen    *primary;
     CoreScreen    *secondary;

     MatroxDeviceData *device_data;
} MatroxDriverData;


extern DisplayLayerFuncs matroxBesFuncs;
extern DisplayLayerFuncs matroxCrtc2Funcs;
extern DisplayLayerFuncs matroxSpicFuncs;

extern ScreenFuncs matroxCrtc2ScreenFuncs;

static inline int mga_log2( int val )
{
     register int ret = 0;

     while (val >> ++ret);

     if ((1 << --ret) < val)
          ret++;

     return ret;
}

#endif
