diff options
author | rnoland <rnoland@FreeBSD.org> | 2010-01-31 14:30:39 +0000 |
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committer | rnoland <rnoland@FreeBSD.org> | 2010-01-31 14:30:39 +0000 |
commit | 4f2c2891b7a3685d0996a9366ce828673d45caed (patch) | |
tree | ffa9a2a797da24cc61c08f0cb47116e004901075 /sys/dev/drm/via_map.c | |
parent | 04aaff5298149d2d2df6b4d11d782ff989614101 (diff) | |
download | FreeBSD-src-4f2c2891b7a3685d0996a9366ce828673d45caed.zip FreeBSD-src-4f2c2891b7a3685d0996a9366ce828673d45caed.tar.gz |
Welcome drm support for VIA unichrome chips.
MFC after: 2 weeks
Diffstat (limited to 'sys/dev/drm/via_map.c')
-rw-r--r-- | sys/dev/drm/via_map.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/sys/dev/drm/via_map.c b/sys/dev/drm/via_map.c new file mode 100644 index 0000000..5504a6b --- /dev/null +++ b/sys/dev/drm/via_map.c @@ -0,0 +1,137 @@ +/*- + * 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "dev/drm/drmP.h" +#include "dev/drm/via_drm.h" +#include "dev/drm/via_drv.h" + +static int via_do_init_map(struct drm_device * dev, drm_via_init_t * init) +{ + drm_via_private_t *dev_priv = dev->dev_private; + + DRM_DEBUG("\n"); + + dev_priv->sarea = drm_getsarea(dev); + if (!dev_priv->sarea) { + DRM_ERROR("could not find sarea!\n"); + dev->dev_private = (void *)dev_priv; + via_do_cleanup_map(dev); + return -EINVAL; + } + + dev_priv->fb = drm_core_findmap(dev, 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; + } + dev_priv->mmio = drm_core_findmap(dev, 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; + + via_init_futex(dev_priv); + + via_init_dmablit(dev); + + dev->dev_private = (void *)dev_priv; + return 0; +} + +int via_do_cleanup_map(struct drm_device * dev) +{ + via_dma_cleanup(dev); + + return 0; +} + +int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_via_init_t *init = data; + + DRM_DEBUG("\n"); + + 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; +} + +int via_driver_load(struct drm_device *dev, unsigned long chipset) +{ + drm_via_private_t *dev_priv; + int ret = 0; + + dev_priv = drm_alloc(sizeof(drm_via_private_t), DRM_MEM_DRIVER); + if (dev_priv == NULL) + return -ENOMEM; + + dev->dev_private = (void *)dev_priv; + + dev_priv->chipset = chipset; + + ret = drm_sman_init(&dev_priv->sman, 2, 12, 8); + if (ret) { + drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER); + return ret; + } + + ret = drm_vblank_init(dev, 1); + if (ret) { + drm_sman_takedown(&dev_priv->sman); + drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER); + return ret; + } + + return 0; +} + +int via_driver_unload(struct drm_device *dev) +{ + drm_via_private_t *dev_priv = dev->dev_private; + + drm_sman_takedown(&dev_priv->sman); + + drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER); + dev->dev_private = NULL; + + return 0; +} |