drm/exynos: added virtual display driver.

this driver would be used for wireless display. virtual display
driver has independent crtc, encoder and connector and to use
this driver, user application should send edid data to this driver
from wireless display.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/drm/exynos_drm.h b/include/drm/exynos_drm.h
index 81c9cb77476e..3963116083ae 100644
--- a/include/drm/exynos_drm.h
+++ b/include/drm/exynos_drm.h
@@ -74,6 +74,20 @@ struct drm_exynos_gem_mmap {
         uint64_t mapped;
 };
 
+/**
+ * A structure for user connection request of virtual display.
+ *
+ * @connection: indicate whether doing connetion or not by user.
+ * @extensions: if this value is 1 then the vidi driver would need additional
+ *      128bytes edid data.
+ * @edid: the edid data pointer from user side.
+ */
+struct drm_exynos_vidi_connection {
+        unsigned int connection;
+        unsigned int extensions;
+        uint64_t *edid;
+};
+
 struct drm_exynos_plane_set_zpos {
         __u32 plane_id;
         __s32 zpos;
@@ -90,6 +104,7 @@ enum e_drm_exynos_gem_mem_type {
 #define DRM_EXYNOS_GEM_MMAP             0x02
 /* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
 #define DRM_EXYNOS_PLANE_SET_ZPOS       0x06
+#define DRM_EXYNOS_VIDI_CONNECTION      0x07
 
 #define DRM_IOCTL_EXYNOS_GEM_CREATE             DRM_IOWR(DRM_COMMAND_BASE + \
                 DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
@@ -103,6 +118,9 @@ enum e_drm_exynos_gem_mem_type {
 #define DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS DRM_IOWR(DRM_COMMAND_BASE + \
                 DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
 
+#define DRM_IOCTL_EXYNOS_VIDI_CONNECTION        DRM_IOWR(DRM_COMMAND_BASE + \
+                DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)
+
 #ifdef __KERNEL__
 
 /**