OMAPDSS: APPLY: move ovl funcs to apply.c

apply.c will handle the management of dispc in the future patches. This
patch moves overlay related functions to apply.c so that they will have
access to the private data and functions of apply.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 64f9997e5d01..e42d1d3baae2 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -662,3 +662,87 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
         mgr->enabled = false;
 }
 
+int dss_ovl_set_info(struct omap_overlay *ovl,
+                struct omap_overlay_info *info)
+{
+        int r;
+        struct omap_overlay_info old_info;
+
+        old_info = ovl->info;
+        ovl->info = *info;
+
+        if (ovl->manager) {
+                r = dss_check_overlay(ovl, ovl->manager->device);
+                if (r) {
+                        ovl->info = old_info;
+                        return r;
+                }
+        }
+
+        ovl->info_dirty = true;
+
+        return 0;
+}
+
+void dss_ovl_get_info(struct omap_overlay *ovl,
+                struct omap_overlay_info *info)
+{
+        *info = ovl->info;
+}
+
+int dss_ovl_set_manager(struct omap_overlay *ovl,
+                struct omap_overlay_manager *mgr)
+{
+        if (!mgr)
+                return -EINVAL;
+
+        if (ovl->manager) {
+                DSSERR("overlay '%s' already has a manager '%s'\n",
+                                ovl->name, ovl->manager->name);
+                return -EINVAL;
+        }
+
+        if (ovl->info.enabled) {
+                DSSERR("overlay has to be disabled to change the manager\n");
+                return -EINVAL;
+        }
+
+        ovl->manager = mgr;
+        list_add_tail(&ovl->list, &mgr->overlays);
+        ovl->manager_changed = true;
+
+        /* XXX: When there is an overlay on a DSI manual update display, and
+         * the overlay is first disabled, then moved to tv, and enabled, we
+         * seem to get SYNC_LOST_DIGIT error.
+         *
+         * Waiting doesn't seem to help, but updating the manual update display
+         * after disabling the overlay seems to fix this. This hints that the
+         * overlay is perhaps somehow tied to the LCD output until the output
+         * is updated.
+         *
+         * Userspace workaround for this is to update the LCD after disabling
+         * the overlay, but before moving the overlay to TV.
+         */
+
+        return 0;
+}
+
+int dss_ovl_unset_manager(struct omap_overlay *ovl)
+{
+        if (!ovl->manager) {
+                DSSERR("failed to detach overlay: manager not set\n");
+                return -EINVAL;
+        }
+
+        if (ovl->info.enabled) {
+                DSSERR("overlay has to be disabled to unset the manager\n");
+                return -EINVAL;
+        }
+
+        ovl->manager = NULL;
+        list_del(&ovl->list);
+        ovl->manager_changed = true;
+
+        return 0;
+}
+