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/* mga_warp.c -- Matrox G200/G400 WARP engine management -*- linux-c -*-

 * Created: Thu Jan 11 21:29:32 2001 by gareth@valinux.com

 *

 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.

 * All Rights Reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice (including the next

 * paragraph) shall be included in all copies or substantial portions of the

 * Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 * OTHER DEALINGS IN THE SOFTWARE.

 *

 * Authors:

 *    Gareth Hughes <gareth@valinux.com>

 */

#include "mga.h"

#include "drmP.h"

#include "drm.h"

#include "mga_drm.h"

#include "mga_drv.h"

#include "mga_ucode.h"

#define MGA_WARP_CODE_ALIGN             256             /* in bytes */

#define WARP_UCODE_SIZE( which )                                        \

        ((sizeof(which) / MGA_WARP_CODE_ALIGN + 1) * MGA_WARP_CODE_ALIGN)

#define WARP_UCODE_INSTALL( which, where )                              \

do {                                                                    \

        DRM_DEBUG( " pcbase = 0x%08lx  vcbase = %p\n", pcbase, vcbase );\

        dev_priv->warp_pipe_phys[where] = pcbase;                       \

        memcpy( vcbase, which, sizeof(which) );                         \

        pcbase += WARP_UCODE_SIZE( which );                             \

        vcbase += WARP_UCODE_SIZE( which );                             \

} while (0)

static unsigned int mga_warp_g400_microcode_size( drm_mga_private_t *dev_priv )

{

        unsigned int size;

        size = ( WARP_UCODE_SIZE( warp_g400_tgz ) +

                 WARP_UCODE_SIZE( warp_g400_tgza ) +

                 WARP_UCODE_SIZE( warp_g400_tgzaf ) +

                 WARP_UCODE_SIZE( warp_g400_tgzf ) +

                 WARP_UCODE_SIZE( warp_g400_tgzs ) +

                 WARP_UCODE_SIZE( warp_g400_tgzsa ) +

                 WARP_UCODE_SIZE( warp_g400_tgzsaf ) +

                 WARP_UCODE_SIZE( warp_g400_tgzsf ) +

                 WARP_UCODE_SIZE( warp_g400_t2gz ) +

                 WARP_UCODE_SIZE( warp_g400_t2gza ) +

                 WARP_UCODE_SIZE( warp_g400_t2gzaf ) +

                 WARP_UCODE_SIZE( warp_g400_t2gzf ) +

                 WARP_UCODE_SIZE( warp_g400_t2gzs ) +

                 WARP_UCODE_SIZE( warp_g400_t2gzsa ) +

                 WARP_UCODE_SIZE( warp_g400_t2gzsaf ) +

                 WARP_UCODE_SIZE( warp_g400_t2gzsf ) );

        size = PAGE_ALIGN( size );

        DRM_DEBUG( "G400 ucode size = %d bytes\n", size );

        return size;

}

static unsigned int mga_warp_g200_microcode_size( drm_mga_private_t *dev_priv )

{

        unsigned int size;

        size = ( WARP_UCODE_SIZE( warp_g200_tgz ) +

                 WARP_UCODE_SIZE( warp_g200_tgza ) +

                 WARP_UCODE_SIZE( warp_g200_tgzaf ) +

                 WARP_UCODE_SIZE( warp_g200_tgzf ) +

                 WARP_UCODE_SIZE( warp_g200_tgzs ) +

                 WARP_UCODE_SIZE( warp_g200_tgzsa ) +

                 WARP_UCODE_SIZE( warp_g200_tgzsaf ) +

                 WARP_UCODE_SIZE( warp_g200_tgzsf ) );

        size = PAGE_ALIGN( size );

        DRM_DEBUG( "G200 ucode size = %d bytes\n", size );

        return size;

}

static int mga_warp_install_g400_microcode( drm_mga_private_t *dev_priv )

{

        unsigned char *vcbase = dev_priv->warp->handle;

        unsigned long pcbase = dev_priv->warp->offset;

        unsigned int size;

        size = mga_warp_g400_microcode_size( dev_priv );

        if ( size > dev_priv->warp->size ) {

                DRM_ERROR( "microcode too large! (%u > %lu)\n",

                           size, dev_priv->warp->size );

                return -ENOMEM;

        }

        memset( dev_priv->warp_pipe_phys, 0,

                sizeof(dev_priv->warp_pipe_phys) );

        WARP_UCODE_INSTALL( warp_g400_tgz,      MGA_WARP_TGZ );

        WARP_UCODE_INSTALL( warp_g400_tgzf,     MGA_WARP_TGZF );

        WARP_UCODE_INSTALL( warp_g400_tgza,     MGA_WARP_TGZA );

        WARP_UCODE_INSTALL( warp_g400_tgzaf,    MGA_WARP_TGZAF );

        WARP_UCODE_INSTALL( warp_g400_tgzs,     MGA_WARP_TGZS );

        WARP_UCODE_INSTALL( warp_g400_tgzsf,    MGA_WARP_TGZSF );

        WARP_UCODE_INSTALL( warp_g400_tgzsa,    MGA_WARP_TGZSA );

        WARP_UCODE_INSTALL( warp_g400_tgzsaf,   MGA_WARP_TGZSAF );

        WARP_UCODE_INSTALL( warp_g400_t2gz,     MGA_WARP_T2GZ );

        WARP_UCODE_INSTALL( warp_g400_t2gzf,    MGA_WARP_T2GZF );

        WARP_UCODE_INSTALL( warp_g400_t2gza,    MGA_WARP_T2GZA );

        WARP_UCODE_INSTALL( warp_g400_t2gzaf,   MGA_WARP_T2GZAF );

        WARP_UCODE_INSTALL( warp_g400_t2gzs,    MGA_WARP_T2GZS );

        WARP_UCODE_INSTALL( warp_g400_t2gzsf,   MGA_WARP_T2GZSF );

        WARP_UCODE_INSTALL( warp_g400_t2gzsa,   MGA_WARP_T2GZSA );

        WARP_UCODE_INSTALL( warp_g400_t2gzsaf,  MGA_WARP_T2GZSAF );

        return 0;

}

static int mga_warp_install_g200_microcode( drm_mga_private_t *dev_priv )

{

        unsigned char *vcbase = dev_priv->warp->handle;

        unsigned long pcbase = dev_priv->warp->offset;

        unsigned int size;

        size = mga_warp_g200_microcode_size( dev_priv );

        if ( size > dev_priv->warp->size ) {

                DRM_ERROR( "microcode too large! (%u > %lu)\n",

                           size, dev_priv->warp->size );

                return -ENOMEM;

        }

        memset( dev_priv->warp_pipe_phys, 0,

                sizeof(dev_priv->warp_pipe_phys) );

        WARP_UCODE_INSTALL( warp_g200_tgz,      MGA_WARP_TGZ );

        WARP_UCODE_INSTALL( warp_g200_tgzf,     MGA_WARP_TGZF );

        WARP_UCODE_INSTALL( warp_g200_tgza,     MGA_WARP_TGZA );

        WARP_UCODE_INSTALL( warp_g200_tgzaf,    MGA_WARP_TGZAF );

        WARP_UCODE_INSTALL( warp_g200_tgzs,     MGA_WARP_TGZS );

        WARP_UCODE_INSTALL( warp_g200_tgzsf,    MGA_WARP_TGZSF );

        WARP_UCODE_INSTALL( warp_g200_tgzsa,    MGA_WARP_TGZSA );

        WARP_UCODE_INSTALL( warp_g200_tgzsaf,   MGA_WARP_TGZSAF );

        return 0;

}

int mga_warp_install_microcode( drm_mga_private_t *dev_priv )

{

        switch ( dev_priv->chipset ) {

        case MGA_CARD_TYPE_G400:

                return mga_warp_install_g400_microcode( dev_priv );

        case MGA_CARD_TYPE_G200:

                return mga_warp_install_g200_microcode( dev_priv );

        default:

                return -EINVAL;

        }

}

#define WMISC_EXPECTED          (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE)

int mga_warp_init( drm_mga_private_t *dev_priv )

{

        u32 wmisc;

        /* FIXME: Get rid of these damned magic numbers...

         */

        switch ( dev_priv->chipset ) {

        case MGA_CARD_TYPE_G400:

                MGA_WRITE( MGA_WIADDR2, MGA_WMODE_SUSPEND );

                MGA_WRITE( MGA_WGETMSB, 0x00000E00 );

                MGA_WRITE( MGA_WVRTXSZ, 0x00001807 );

                MGA_WRITE( MGA_WACCEPTSEQ, 0x18000000 );

                break;

        case MGA_CARD_TYPE_G200:

                MGA_WRITE( MGA_WIADDR, MGA_WMODE_SUSPEND );

                MGA_WRITE( MGA_WGETMSB, 0x1606 );

                MGA_WRITE( MGA_WVRTXSZ, 7 );

                break;

        default:

                return -EINVAL;

        }

        MGA_WRITE( MGA_WMISC, (MGA_WUCODECACHE_ENABLE |

                               MGA_WMASTER_ENABLE |

                               MGA_WCACHEFLUSH_ENABLE) );

        wmisc = MGA_READ( MGA_WMISC );

        if ( wmisc != WMISC_EXPECTED ) {

                DRM_ERROR( "WARP engine config failed! 0x%x != 0x%x\n",

                           wmisc, WMISC_EXPECTED );

                return -EINVAL;

        }

        return 0;

}