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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
* 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, 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.
*/
#define __NO_VERSION__
#include "via.h"
#include "drmP.h"
#include "via_drv.h"
int via_do_init_map(drm_device_t *dev, drm_via_init_t *init)
{
drm_via_private_t *dev_priv;
struct list_head *list;
DRM_DEBUG("%s\n", __FUNCTION__);
dev_priv = DRM(alloc)(sizeof(drm_via_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
return -ENOMEM;
memset(dev_priv, 0, sizeof(drm_via_private_t));
list_for_each(list, &dev->maplist->head) {
drm_map_list_t *r_list = (drm_map_list_t *)list;
if ( r_list->map &&
r_list->map->type == _DRM_SHM &&
r_list->map->flags & _DRM_CONTAINS_LOCK) {
dev_priv->sarea = r_list->map;
break;
}
}
if (!dev_priv->sarea) {
DRM_ERROR("could not find sarea!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
DRM_FIND_MAP(dev_priv->fb, init->fb_offset);
if (!dev_priv->fb) {
DRM_ERROR("could not find framebuffer!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
DRM_FIND_MAP(dev_priv->mmio, init->mmio_offset);
if (!dev_priv->mmio) {
DRM_ERROR("could not find mmio region!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
dev_priv->sarea_priv =
(drm_via_sarea_t *)((u8 *)dev_priv->sarea->handle +
init->sarea_priv_offset);
dev_priv->agpAddr = init->agpAddr;
dev->dev_private = (void *)dev_priv;
return 0;
}
int via_do_cleanup_map(drm_device_t *dev)
{
if (dev->dev_private) {
drm_via_private_t *dev_priv = dev->dev_private;
DRM(free)(dev_priv, sizeof(drm_via_private_t),
DRM_MEM_DRIVER);
dev->dev_private = NULL;
}
return 0;
}
int via_map_init(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_via_init_t init;
DRM_DEBUG("%s\n", __FUNCTION__);
if (copy_from_user(&init, (drm_via_init_t *)arg, sizeof(init)))
return -EFAULT;
switch (init.func) {
case VIA_INIT_MAP:
return via_do_init_map(dev, &init);
case VIA_CLEANUP_MAP:
return via_do_cleanup_map(dev);
}
return -EINVAL;
}
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