From: Maarten Maathuis <madman2003@gmail.com>
Date: Tue, 24 Jun 2008 08:16:52 +0000 (+0200)
Subject: NV50: fix cursor hide/show
X-Git-Tag: submit/1.0/20121108.012404~642^2~124^2~45
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=315fef7ee44f9ca565f158a6a84fd29b34e69fd8;p=profile%2Fivi%2Flibdrm.git

NV50: fix cursor hide/show
---

diff --git a/linux-core/nv50_cursor.c b/linux-core/nv50_cursor.c
index 4196df6..47ae11b 100644
--- a/linux-core/nv50_cursor.c
+++ b/linux-core/nv50_cursor.c
@@ -126,6 +126,7 @@ static int nv50_cursor_set_bo(struct nv50_crtc *crtc, drm_handle_t handle)
 				crtc->cursor->show(crtc);
 		}
 	} else {
+		DRM_ERROR("Unable to find cursor bo with handle 0x%X\n", handle);
 		return -EINVAL;
 	}
 
@@ -151,9 +152,6 @@ int nv50_cursor_create(struct nv50_crtc *crtc)
 	crtc->cursor->enable = nv50_cursor_enable;
 	crtc->cursor->disable = nv50_cursor_disable;
 
-	/* defaults */
-	crtc->cursor->visible = true; /* won't happen until there is a cursor bo */
-
 	return 0;
 }
 
diff --git a/linux-core/nv50_kms_wrapper.c b/linux-core/nv50_kms_wrapper.c
index 529a905..b3d5ce6 100644
--- a/linux-core/nv50_kms_wrapper.c
+++ b/linux-core/nv50_kms_wrapper.c
@@ -233,20 +233,35 @@ static int nv50_kms_crtc_cursor_set(struct drm_crtc *drm_crtc, uint32_t buffer_h
 {
 	struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 	struct nv50_display *display = nv50_get_display(crtc->dev);
-	int rval;
+	int rval = 0;
 
 	if (width != 64 || height != 64)
 		return -EINVAL;
 
-	rval = crtc->cursor->set_bo(crtc, (drm_handle_t) buffer_handle);
+	/* set bo before doing show cursor */
+	if (buffer_handle) {
+		rval = crtc->cursor->set_bo(crtc, (drm_handle_t) buffer_handle);
+		if (rval != 0)
+			goto out;
+	}
+
+	if (buffer_handle) {
+		rval = crtc->cursor->show(crtc);
+		if (rval != 0)
+			goto out;
+	} else { /* no handle implies hiding the cursor */
+		rval = crtc->cursor->hide(crtc);
+		goto out;
+	}
 
 	if (rval != 0)
 		return rval;
 
+out:
 	/* in case this triggers any other cursor changes */
 	display->update(display);
 
-	return 0;
+	return rval;
 }
 
 static int nv50_kms_crtc_cursor_move(struct drm_crtc *drm_crtc, int x, int y)