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1/*2 * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so3 * anyone can use the definitions to implement compatible drivers/servers:4 *5 *6 * Redistribution and use in source and binary forms, with or without7 * modification, are permitted provided that the following conditions8 * are met:9 * 1. Redistributions of source code must retain the above copyright10 * notice, this list of conditions and the following disclaimer.11 * 2. Redistributions in binary form must reproduce the above copyright12 * notice, this list of conditions and the following disclaimer in the13 * documentation and/or other materials provided with the distribution.14 * 3. Neither the name of IBM nor the names of its contributors15 * may be used to endorse or promote products derived from this software16 * without specific prior written permission.17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE20 * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF27 * SUCH DAMAGE.28 *29 * Copyright (C) Red Hat, Inc., 2009, 2010, 201130 * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 201131 */32#ifndef _UAPI_LINUX_VIRTIO_CONSOLE_H33#define _UAPI_LINUX_VIRTIO_CONSOLE_H34#include <linux/types.h>35#include <linux/virtio_types.h>36#include <linux/virtio_ids.h>37#include <linux/virtio_config.h>38 39/* Feature bits */40#define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */41#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */42#define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */43 44#define VIRTIO_CONSOLE_BAD_ID (~(__u32)0)45 46struct virtio_console_config {47 /* colums of the screens */48 __virtio16 cols;49 /* rows of the screens */50 __virtio16 rows;51 /* max. number of ports this device can hold */52 __virtio32 max_nr_ports;53 /* emergency write register */54 __virtio32 emerg_wr;55} __attribute__((packed));56 57/*58 * A message that's passed between the Host and the Guest for a59 * particular port.60 */61struct virtio_console_control {62 __virtio32 id; /* Port number */63 __virtio16 event; /* The kind of control event (see below) */64 __virtio16 value; /* Extra information for the key */65};66 67/* Some events for control messages */68#define VIRTIO_CONSOLE_DEVICE_READY 069#define VIRTIO_CONSOLE_PORT_ADD 170#define VIRTIO_CONSOLE_PORT_REMOVE 271#define VIRTIO_CONSOLE_PORT_READY 372#define VIRTIO_CONSOLE_CONSOLE_PORT 473#define VIRTIO_CONSOLE_RESIZE 574#define VIRTIO_CONSOLE_PORT_OPEN 675#define VIRTIO_CONSOLE_PORT_NAME 776 77 78#endif /* _UAPI_LINUX_VIRTIO_CONSOLE_H */79