Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 41 insertions, 0 deletions

diff --git a/include/hw/display/i2c-ddc.h b/include/hw/display/i2c-ddc.h
new file mode 100644
index 000000000..94b588058
--- /dev/null
+++ b/include/hw/display/i2c-ddc.h
@@ -0,0 +1,41 @@
+/* A simple I2C slave for returning monitor EDID data via DDC.
+ *
+ * Copyright (c) 2011 Linaro Limited
+ * Written by Peter Maydell
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef I2C_DDC_H
+#define I2C_DDC_H
+
+#include "hw/display/edid.h"
+#include "hw/i2c/i2c.h"
+#include "qom/object.h"
+
+/* A simple I2C slave which just returns the contents of its EDID blob. */
+struct I2CDDCState {
+    /*< private >*/
+    I2CSlave i2c;
+    /*< public >*/
+    bool firstbyte;
+    uint8_t reg;
+    qemu_edid_info edid_info;
+    uint8_t edid_blob[128];
+};
+
+
+#define TYPE_I2CDDC "i2c-ddc"
+OBJECT_DECLARE_SIMPLE_TYPE(I2CDDCState, I2CDDC)
+
+#endif /* I2C_DDC_H */