diff options
Diffstat (limited to 'linux-core/drm_crtc.c')
| -rw-r--r-- | linux-core/drm_crtc.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c index 1e69eca3..18fa02ce 100644 --- a/linux-core/drm_crtc.c +++ b/linux-core/drm_crtc.c @@ -1608,6 +1608,63 @@ out: return ret; } +int drm_mode_cursor_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + struct drm_mode_cursor *req = data; + struct drm_crtc *crtc; + struct drm_buffer_object *bo = NULL; /* must be set */ + int ret = 0; + + DRM_DEBUG("\n"); + + if (!req->flags) { + DRM_ERROR("no operation set\n"); + return -EINVAL; + } + + mutex_lock(&dev->mode_config.mutex); + crtc = idr_find(&dev->mode_config.crtc_idr, req->crtc); + if (!crtc || (crtc->id != req->crtc)) { + DRM_DEBUG("Unknown CRTC ID %d\n", req->crtc); + ret = -EINVAL; + goto out; + } + + if (req->flags & DRM_MODE_CURSOR_BO) { + /* Turn of the cursor if handle is 0 */ + if (req->handle) + ret = drm_get_buffer_object(dev, &bo, req->handle); + + if (ret) { + DRM_ERROR("invalid buffer id\n"); + ret = -EINVAL; + goto out; + } + + if (crtc->funcs->cursor_set) { + ret = crtc->funcs->cursor_set(crtc, bo, req->width, req->height); + } else { + DRM_ERROR("crtc does not support cursor\n"); + ret = -EFAULT; + goto out; + } + } + + if (req->flags & DRM_MODE_CURSOR_MOVE) { + if (crtc->funcs->cursor_move) { + ret = crtc->funcs->cursor_move(crtc, req->x, req->y); + } else { + DRM_ERROR("crtc does not support cursor\n"); + ret = -EFAULT; + goto out; + } + } +out: + mutex_unlock(&dev->mode_config.mutex); + return ret; +} + /** * drm_mode_addfb - add an FB to the graphics configuration * @inode: inode from the ioctl |