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-rw-r--r--qemu/include/standard-headers/linux/virtio_console.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/qemu/include/standard-headers/linux/virtio_console.h b/qemu/include/standard-headers/linux/virtio_console.h
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+/*
+ * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
+ * anyone can use the definitions to implement compatible drivers/servers:
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Copyright (C) Red Hat, Inc., 2009, 2010, 2011
+ * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011
+ */
+#ifndef _LINUX_VIRTIO_CONSOLE_H
+#define _LINUX_VIRTIO_CONSOLE_H
+#include "standard-headers/linux/types.h"
+#include "standard-headers/linux/virtio_types.h"
+#include "standard-headers/linux/virtio_ids.h"
+#include "standard-headers/linux/virtio_config.h"
+
+/* Feature bits */
+#define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */
+#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */
+#define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */
+
+#define VIRTIO_CONSOLE_BAD_ID (~(uint32_t)0)
+
+struct virtio_console_config {
+ /* colums of the screens */
+ uint16_t cols;
+ /* rows of the screens */
+ uint16_t rows;
+ /* max. number of ports this device can hold */
+ uint32_t max_nr_ports;
+ /* emergency write register */
+ uint32_t emerg_wr;
+} QEMU_PACKED;
+
+/*
+ * A message that's passed between the Host and the Guest for a
+ * particular port.
+ */
+struct virtio_console_control {
+ __virtio32 id; /* Port number */
+ __virtio16 event; /* The kind of control event (see below) */
+ __virtio16 value; /* Extra information for the key */
+};
+
+/* Some events for control messages */
+#define VIRTIO_CONSOLE_DEVICE_READY 0
+#define VIRTIO_CONSOLE_PORT_ADD 1
+#define VIRTIO_CONSOLE_PORT_REMOVE 2
+#define VIRTIO_CONSOLE_PORT_READY 3
+#define VIRTIO_CONSOLE_CONSOLE_PORT 4
+#define VIRTIO_CONSOLE_RESIZE 5
+#define VIRTIO_CONSOLE_PORT_OPEN 6
+#define VIRTIO_CONSOLE_PORT_NAME 7
+
+
+#endif /* _LINUX_VIRTIO_CONSOLE_H */