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

3 files changed, 85 insertions, 0 deletions

diff --git a/include/hw/audio/pcspk.h b/include/hw/audio/pcspk.h
new file mode 100644
index 000000000..950617958
--- /dev/null
+++ b/include/hw/audio/pcspk.h
@@ -0,0 +1,40 @@
+/*
+ * QEMU PC speaker emulation
+ *
+ * Copyright (c) 2006 Joachim Henke
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef HW_PCSPK_H
+#define HW_PCSPK_H
+
+#include "hw/isa/isa.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
+
+#define TYPE_PC_SPEAKER "isa-pcspk"
+
+static inline void pcspk_init(ISADevice *isadev, ISABus *bus, ISADevice *pit)
+{
+    object_property_set_link(OBJECT(isadev), "pit", OBJECT(pit), NULL);
+    isa_realize_and_unref(isadev, bus, &error_fatal);
+}
+
+#endif /* HW_PCSPK_H */
diff --git a/include/hw/audio/soundhw.h b/include/hw/audio/soundhw.h
new file mode 100644
index 000000000..f09a29785
--- /dev/null
+++ b/include/hw/audio/soundhw.h
@@ -0,0 +1,15 @@
+#ifndef HW_SOUNDHW_H
+#define HW_SOUNDHW_H
+
+void isa_register_soundhw(const char *name, const char *descr,
+                          int (*init_isa)(ISABus *bus));
+
+void pci_register_soundhw(const char *name, const char *descr,
+                          int (*init_pci)(PCIBus *bus));
+void deprecated_register_soundhw(const char *name, const char *descr,
+                                 int isa, const char *typename);
+
+void soundhw_init(void);
+void select_soundhw(const char *optarg);
+
+#endif
diff --git a/include/hw/audio/wm8750.h b/include/hw/audio/wm8750.h
new file mode 100644
index 000000000..f7bafd5e3
--- /dev/null
+++ b/include/hw/audio/wm8750.h
@@ -0,0 +1,30 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 HW_DAC_WM8750_H
+#define HW_DAC_WM8750_H
+
+
+#define TYPE_WM8750 "wm8750"
+#define TYPE_MV88W8618_AUDIO "mv88w8618_audio"
+
+typedef void data_req_cb(void *opaque, int free_out, int free_in);
+
+void wm8750_data_req_set(DeviceState *dev, data_req_cb *data_req, void *opaque);
+void wm8750_dac_dat(void *opaque, uint32_t sample);
+uint32_t wm8750_adc_dat(void *opaque);
+void *wm8750_dac_buffer(void *opaque, int samples);
+void wm8750_dac_commit(void *opaque);
+void wm8750_set_bclk_in(void *opaque, int new_hz);
+
+#endif