1 #ifndef _LINUX_VIRTIO_CONSOLE_H 2 #define _LINUX_VIRTIO_CONSOLE_H 3 #include <linux/types.h> 4 #include <linux/virtio_ids.h> 5 #include <linux/virtio_config.h> 6 /* 7 * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so 8 * anyone can use the definitions to implement compatible drivers/servers: 9 * 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of IBM nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * Copyright (C) Red Hat, Inc., 2009, 2010, 2011 35 * Copyright (C) Amit Shah <amit.shah (at) redhat.com>, 2009, 2010, 2011 36 */ 37 38 /* Feature bits */ 39 #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */ 40 #define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */ 41 42 #define VIRTIO_CONSOLE_BAD_ID (~(u32)0) 43 44 struct virtio_console_config { 45 /* colums of the screens */ 46 __u16 cols; 47 /* rows of the screens */ 48 __u16 rows; 49 /* max. number of ports this device can hold */ 50 __u32 max_nr_ports; 51 } __attribute__((packed)); 52 53 /* 54 * A message that's passed between the Host and the Guest for a 55 * particular port. 56 */ 57 struct virtio_console_control { 58 __u32 id; /* Port number */ 59 __u16 event; /* The kind of control event (see below) */ 60 __u16 value; /* Extra information for the key */ 61 }; 62 63 /* Some events for control messages */ 64 #define VIRTIO_CONSOLE_DEVICE_READY 0 65 #define VIRTIO_CONSOLE_PORT_ADD 1 66 #define VIRTIO_CONSOLE_PORT_REMOVE 2 67 #define VIRTIO_CONSOLE_PORT_READY 3 68 #define VIRTIO_CONSOLE_CONSOLE_PORT 4 69 #define VIRTIO_CONSOLE_RESIZE 5 70 #define VIRTIO_CONSOLE_PORT_OPEN 6 71 #define VIRTIO_CONSOLE_PORT_NAME 7 72 73 74 #endif /* _LINUX_VIRTIO_CONSOLE_H */ 75
