X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Fdrm%2Fvia_map.c;fp=drivers%2Fchar%2Fdrm%2Fvia_map.c;h=c6a08e96285bf55c62a96480c7989ea0632a7419;hb=16cf0ec7408f389279d413869e94c1a351392f97;hp=0000000000000000000000000000000000000000;hpb=65da6b7c3bf0bd6a149128079565e5f4efec28ac;p=linux-2.6.git

diff --git a/drivers/char/drm/via_map.c b/drivers/char/drm/via_map.c
new file mode 100644
index 000000000..c6a08e962
--- /dev/null
+++ b/drivers/char/drm/via_map.c
@@ -0,0 +1,122 @@
+/*
+ * 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 "drmP.h"
+#include "via_drm.h"
+#include "via_drv.h"
+
+static int via_do_init_map(drm_device_t * dev, drm_via_init_t * init)
+{
+	drm_via_private_t *dev_priv = dev->dev_private;
+
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
+	DRM_GETSAREA();
+	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(drm_device_t * dev)
+{
+	via_dma_cleanup(dev);
+
+	return 0;
+}
+
+int via_map_init(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	drm_via_init_t init;
+
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
+	DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t __user *) data,
+				 sizeof(init));
+
+	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(drm_device_t *dev, unsigned long chipset)
+{
+	drm_via_private_t *dev_priv;
+
+	dev_priv = drm_calloc(1, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
+	if (dev_priv == NULL)
+		return DRM_ERR(ENOMEM);
+
+	dev->dev_private = (void *)dev_priv;
+
+	if (chipset == VIA_PRO_GROUP_A)
+		dev_priv->pro_group_a = 1;
+
+	return 0;
+}
+
+int via_driver_unload(drm_device_t *dev)
+{
+	drm_via_private_t *dev_priv = dev->dev_private;
+
+	drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
+
+	return 0;
+}
+