1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so 3*4882a593Smuzhiyun * anyone can use the definitions to implement compatible drivers/servers: 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or without 7*4882a593Smuzhiyun * modification, are permitted provided that the following conditions 8*4882a593Smuzhiyun * are met: 9*4882a593Smuzhiyun * 1. Redistributions of source code must retain the above copyright 10*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer. 11*4882a593Smuzhiyun * 2. Redistributions in binary form must reproduce the above copyright 12*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer in the 13*4882a593Smuzhiyun * documentation and/or other materials provided with the distribution. 14*4882a593Smuzhiyun * 3. Neither the name of IBM nor the names of its contributors 15*4882a593Smuzhiyun * may be used to endorse or promote products derived from this software 16*4882a593Smuzhiyun * without specific prior written permission. 17*4882a593Smuzhiyun * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND 18*4882a593Smuzhiyun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*4882a593Smuzhiyun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*4882a593Smuzhiyun * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE 21*4882a593Smuzhiyun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*4882a593Smuzhiyun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*4882a593Smuzhiyun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*4882a593Smuzhiyun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*4882a593Smuzhiyun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*4882a593Smuzhiyun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*4882a593Smuzhiyun * SUCH DAMAGE. 28*4882a593Smuzhiyun * 29*4882a593Smuzhiyun * Copyright (C) Red Hat, Inc., 2009, 2010, 2011 30*4882a593Smuzhiyun * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011 31*4882a593Smuzhiyun */ 32*4882a593Smuzhiyun #ifndef _UAPI_LINUX_VIRTIO_CONSOLE_H 33*4882a593Smuzhiyun #define _UAPI_LINUX_VIRTIO_CONSOLE_H 34*4882a593Smuzhiyun #include <linux/types.h> 35*4882a593Smuzhiyun #include <linux/virtio_types.h> 36*4882a593Smuzhiyun #include <linux/virtio_ids.h> 37*4882a593Smuzhiyun #include <linux/virtio_config.h> 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun /* Feature bits */ 40*4882a593Smuzhiyun #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */ 41*4882a593Smuzhiyun #define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */ 42*4882a593Smuzhiyun #define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */ 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #define VIRTIO_CONSOLE_BAD_ID (~(__u32)0) 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun struct virtio_console_config { 47*4882a593Smuzhiyun /* colums of the screens */ 48*4882a593Smuzhiyun __virtio16 cols; 49*4882a593Smuzhiyun /* rows of the screens */ 50*4882a593Smuzhiyun __virtio16 rows; 51*4882a593Smuzhiyun /* max. number of ports this device can hold */ 52*4882a593Smuzhiyun __virtio32 max_nr_ports; 53*4882a593Smuzhiyun /* emergency write register */ 54*4882a593Smuzhiyun __virtio32 emerg_wr; 55*4882a593Smuzhiyun } __attribute__((packed)); 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun /* 58*4882a593Smuzhiyun * A message that's passed between the Host and the Guest for a 59*4882a593Smuzhiyun * particular port. 60*4882a593Smuzhiyun */ 61*4882a593Smuzhiyun struct virtio_console_control { 62*4882a593Smuzhiyun __virtio32 id; /* Port number */ 63*4882a593Smuzhiyun __virtio16 event; /* The kind of control event (see below) */ 64*4882a593Smuzhiyun __virtio16 value; /* Extra information for the key */ 65*4882a593Smuzhiyun }; 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun /* Some events for control messages */ 68*4882a593Smuzhiyun #define VIRTIO_CONSOLE_DEVICE_READY 0 69*4882a593Smuzhiyun #define VIRTIO_CONSOLE_PORT_ADD 1 70*4882a593Smuzhiyun #define VIRTIO_CONSOLE_PORT_REMOVE 2 71*4882a593Smuzhiyun #define VIRTIO_CONSOLE_PORT_READY 3 72*4882a593Smuzhiyun #define VIRTIO_CONSOLE_CONSOLE_PORT 4 73*4882a593Smuzhiyun #define VIRTIO_CONSOLE_RESIZE 5 74*4882a593Smuzhiyun #define VIRTIO_CONSOLE_PORT_OPEN 6 75*4882a593Smuzhiyun #define VIRTIO_CONSOLE_PORT_NAME 7 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun #endif /* _UAPI_LINUX_VIRTIO_CONSOLE_H */ 79