144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/*
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* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#define __NO_VERSION__
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#include "via.h"
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#include "drmP.h"
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#include "via_drv.h"
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int via_do_init_map(drm_device_t *dev, drm_via_init_t *init)
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{
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drm_via_private_t *dev_priv;
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unsigned int i;
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DRM_DEBUG("%s\n", __FUNCTION__);
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dev_priv = DRM(alloc)(sizeof(drm_via_private_t), DRM_MEM_DRIVER);
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if (dev_priv == NULL)
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return -ENOMEM;
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memset(dev_priv, 0, sizeof(drm_via_private_t));
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DRM_GETSAREA();
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if (!dev_priv->sarea) {
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DRM_ERROR("could not find sarea!\n");
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dev->dev_private = (void *)dev_priv;
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via_do_cleanup_map(dev);
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return -EINVAL;
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}
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DRM_FIND_MAP(dev_priv->fb, init->fb_offset);
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if (!dev_priv->fb) {
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DRM_ERROR("could not find framebuffer!\n");
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dev->dev_private = (void *)dev_priv;
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via_do_cleanup_map(dev);
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return -EINVAL;
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}
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DRM_FIND_MAP(dev_priv->mmio, init->mmio_offset);
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if (!dev_priv->mmio) {
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DRM_ERROR("could not find mmio region!\n");
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dev->dev_private = (void *)dev_priv;
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via_do_cleanup_map(dev);
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return -EINVAL;
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}
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dev_priv->sarea_priv =
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(drm_via_sarea_t *)((u8 *)dev_priv->sarea->handle +
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init->sarea_priv_offset);
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dev_priv->agpAddr = init->agpAddr;
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for (i=0; i<VIA_NR_XVMC_LOCKS; ++i)
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DRM_INIT_WAITQUEUE( &(dev_priv->decoder_queue[i]) );
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dev->dev_private = (void *)dev_priv;
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return 0;
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}
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int via_do_cleanup_map(drm_device_t *dev)
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{
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if (dev->dev_private) {
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drm_via_private_t *dev_priv = dev->dev_private;
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DRM(free)(dev_priv, sizeof(drm_via_private_t),
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DRM_MEM_DRIVER);
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dev->dev_private = NULL;
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}
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return 0;
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}
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int via_map_init( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_via_init_t init;
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DRM_DEBUG("%s\n", __FUNCTION__);
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DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t *)data, sizeof(init));
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switch (init.func) {
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case VIA_INIT_MAP:
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return via_do_init_map(dev, &init);
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case VIA_CLEANUP_MAP:
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return via_do_cleanup_map(dev);
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}
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return -EINVAL;
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}
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int via_decoder_futex( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_via_futex_t fx;
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volatile int *lock;
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drm_via_private_t *dev_priv = (drm_via_private_t*) dev->dev_private;
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drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
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int ret = 0;
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DRM_COPY_FROM_USER_IOCTL(fx, (drm_via_futex_t *) data, sizeof(fx));
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if (fx.lock > VIA_NR_XVMC_LOCKS)
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return -EFAULT;
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lock = XVMCLOCKPTR(sAPriv,fx.lock);
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switch(fx.op) {
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case VIA_FUTEX_WAIT:
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DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx.lock],
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(fx.ms / 10)*(DRM_HZ/100),
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*lock != fx.val);
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return ret;
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case VIA_FUTEX_WAKE:
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DRM_WAKEUP( &(dev_priv->decoder_queue[fx.lock]) );
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return 0;
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}
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return 0;
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}
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