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/* gamma_drv.h -- Private header for 3dlabs GMX 2000 driver -*- linux-c -*-

 * Created: Mon Jan  4 10:05:05 1999 by faith@precisioninsight.com

 *

 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.

 * 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

 * PRECISION INSIGHT 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:

 *    Rickard E. (Rik) Faith <faith@valinux.com>

 *

 */

#ifndef _GAMMA_DRV_H_

#define _GAMMA_DRV_H_

typedef struct drm_gamma_private {

        drm_gamma_sarea_t *sarea_priv;

        drm_map_t *sarea;

        drm_map_t *buffers;

        drm_map_t *mmio0;

        drm_map_t *mmio1;

        drm_map_t *mmio2;

        drm_map_t *mmio3;

} drm_gamma_private_t;

#define LOCK_TEST_WITH_RETURN( dev )                                    \

do {                                                                    \

        if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) ||           \

             dev->lock.pid != current->pid ) {                          \

                DRM_ERROR( "%s called without lock held\n",             \

                           __FUNCTION__ );                              \

                return -EINVAL;                                         \

        }                                                               \

} while (0)

                                /* gamma_dma.c */

extern int gamma_dma_init( struct inode *inode, struct file *filp,

                         unsigned int cmd, unsigned long arg );

extern int gamma_dma_copy( struct inode *inode, struct file *filp,

                         unsigned int cmd, unsigned long arg );

extern void gamma_dma_ready(drm_device_t *dev);

extern void gamma_dma_quiescent_single(drm_device_t *dev);

extern void gamma_dma_quiescent_dual(drm_device_t *dev);

                                /* gamma_dma.c */

extern int  gamma_dma_schedule(drm_device_t *dev, int locked);

extern int  gamma_dma(struct inode *inode, struct file *filp,

                      unsigned int cmd, unsigned long arg);

extern int  gamma_find_devices(void);

extern int  gamma_found(void);

#define GLINT_DRI_BUF_COUNT 256

#define GAMMA_OFF(reg)                                             \

        ((reg < 0x1000)                                            \

         ? reg                                                     \

         : ((reg < 0x10000)                                        \

            ? (reg - 0x1000)                                       \

            : ((reg < 0x11000)                                     \

               ? (reg - 0x10000)                                   \

               : (reg - 0x11000))))

#define GAMMA_BASE(reg)  ((unsigned long)                                    \

                          ((reg < 0x1000)    ? dev_priv->mmio0->handle :     \

                           ((reg < 0x10000)  ? dev_priv->mmio1->handle :     \

                            ((reg < 0x11000) ? dev_priv->mmio2->handle :     \

                                               dev_priv->mmio3->handle))))

#define GAMMA_ADDR(reg)  (GAMMA_BASE(reg) + GAMMA_OFF(reg))

#define GAMMA_DEREF(reg) *(__volatile__ int *)GAMMA_ADDR(reg)

#define GAMMA_READ(reg)  GAMMA_DEREF(reg)

#define GAMMA_WRITE(reg,val) do { GAMMA_DEREF(reg) = val; } while (0)

#define GAMMA_BROADCASTMASK    0x9378

#define GAMMA_COMMANDINTENABLE 0x0c48

#define GAMMA_DMAADDRESS       0x0028

#define GAMMA_DMACOUNT         0x0030

#define GAMMA_FILTERMODE       0x8c00

#define GAMMA_GCOMMANDINTFLAGS 0x0c50

#define GAMMA_GCOMMANDMODE     0x0c40

#define         GAMMA_QUEUED_DMA_MODE           1<<1

#define GAMMA_GCOMMANDSTATUS   0x0c60

#define GAMMA_GDELAYTIMER      0x0c38

#define GAMMA_GDMACONTROL      0x0060

#define         GAMMA_USE_AGP                   1<<1

#define GAMMA_GINTENABLE       0x0808

#define GAMMA_GINTFLAGS        0x0810

#define GAMMA_INFIFOSPACE      0x0018

#define GAMMA_OUTFIFOWORDS     0x0020

#define GAMMA_OUTPUTFIFO       0x2000

#define GAMMA_SYNC             0x8c40

#define GAMMA_SYNC_TAG         0x0188

#define GAMMA_PAGETABLEADDR    0x0C00

#define GAMMA_PAGETABLELENGTH  0x0C08

#define GAMMA_PASSTHROUGH       0x1FE

#define GAMMA_DMAADDRTAG        0x530

#define GAMMA_DMACOUNTTAG       0x531

#define GAMMA_COMMANDINTTAG     0x532

#endif