From c9cda51af5a8bea1d30ce575ae260de52950fe2f Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 5 Dec 2007 16:31:35 +1000 Subject: more WIP on blobs.. I'm going to pass back a list of blob ids and lengths in the getproperty. will need another ioctl to return the blob data as it is variable length. --- linux-core/drm_crtc.c | 67 ++++++++++++++++++++++++++++----------------------- 1 file changed, 37 insertions(+), 30 deletions(-) (limited to 'linux-core/drm_crtc.c') diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c index c2680319..a3aa783b 100644 --- a/linux-core/drm_crtc.c +++ b/linux-core/drm_crtc.c @@ -1968,7 +1968,9 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, struct drm_property_enum *prop_enum; struct drm_property_enum __user *enum_ptr; struct drm_property_blob *prop_blob; + uint32_t *blob_id_ptr; uint64_t __user *values_ptr; + uint32_t __user *blob_length_ptr; mutex_lock(&dev->mode_config.mutex); property = idr_find(&dev->mode_config.crtc_idr, out_resp->prop_id); @@ -1980,7 +1982,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, if (property->flags & DRM_MODE_PROP_ENUM) { list_for_each_entry(prop_enum, &property->enum_blob_list, head) enum_count++; - } else if (property->flags & DRM_MODE_PROP_BLOB) { + } else if (property->flags & DRM_MODE_PROP_BLOB) { list_for_each_entry(prop_blob, &property->enum_blob_list, head) blob_count++; } @@ -2002,44 +2004,49 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, } out_resp->count_values = value_count; - if ((out_resp->count_enum_blobs >= enum_count) && enum_count && (property->flags & DRM_MODE_PROP_ENUM)) { - copied = 0; - enum_ptr = (struct drm_property_enum *)(unsigned long)out_resp->enum_blob_ptr; - list_for_each_entry(prop_enum, &property->enum_blob_list, head) { - if (put_user(prop_enum->value, &enum_ptr[copied].value)) { - ret = -EFAULT; - goto done; - } - - if (copy_to_user(&enum_ptr[copied].name, - prop_enum->name, DRM_PROP_NAME_LEN)) { + if (property->flags & DRM_MODE_PROP_ENUM) { + if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { + copied = 0; + enum_ptr = (struct drm_property_enum *)(unsigned long)out_resp->enum_blob_ptr; + list_for_each_entry(prop_enum, &property->enum_blob_list, head) { + if (put_user(prop_enum->value, &enum_ptr[copied].value)) { + ret = -EFAULT; + goto done; + } + + if (copy_to_user(&enum_ptr[copied].name, + prop_enum->name, DRM_PROP_NAME_LEN)) { ret = -EFAULT; goto done; + } + copied++; } - copied++; } + out_resp->count_enum_blobs = enum_count; } - out_resp->count_enum_blobs = enum_count; -#if 0 - if ((out_resp->count_blobs >= enum_count) && blob_count && (property->flags & DRM_MODE_PROP_BLOB)) { - copied = 0; - list_for_each_entry(prop_blob, &property->enum_list, head) { - if (put_user(prop_enum->value, &out_resp->blobs[copied].value)) { - ret = -EFAULT; - goto done; - } - - if (copy_to_user(&out_resp->enums[copied].name, - prop_enum->name, DRM_PROP_NAME_LEN)) { - ret = -EFAULT; - goto done; + if (property->flags & DRM_MODE_PROP_BLOB) { + if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { + copied = 0; + blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr; + blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr; + + list_for_each_entry(prop_blob, &property->enum_blob_list, head) { + if (put_user(prop_blob->id, blob_id_ptr + copied)) { + ret = -EFAULT; + goto done; + } + + if (put_user(prop_blob->length, blob_length_ptr + copied)) { + ret = -EFAULT; + goto done; + } + + copied++; } - copied++; } + out_resp->count_enum_blobs = enum_count; } - out_resp->count_enums = enum_count; -#endif done: mutex_unlock(&dev->mode_config.mutex); return ret; -- cgit v1.2.3