David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 1 | /* |
| 2 | * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so |
| 3 | * anyone can use the definitions to implement compatible drivers/servers: |
| 4 | * |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. Neither the name of IBM nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this software |
| 16 | * without specific prior written permission. |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | * Copyright (C) Red Hat, Inc., 2009, 2010, 2011 |
| 30 | * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011 |
| 31 | */ |
| 32 | #ifndef _UAPI_LINUX_VIRTIO_CONSOLE_H |
| 33 | #define _UAPI_LINUX_VIRTIO_CONSOLE_H |
| 34 | #include <linux/types.h> |
| 35 | #include <linux/virtio_ids.h> |
| 36 | #include <linux/virtio_config.h> |
| 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? */ |
Pranavkumar Sawargaonkar | 1c6264c | 2013-05-20 10:25:38 +0930 | [diff] [blame] | 41 | #define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */ |
David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 42 | |
Michael S. Tsirkin | 6407d75 | 2013-05-17 10:44:15 +0930 | [diff] [blame] | 43 | #define VIRTIO_CONSOLE_BAD_ID (~(__u32)0) |
David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 44 | |
| 45 | struct virtio_console_config { |
| 46 | /* colums of the screens */ |
| 47 | __u16 cols; |
| 48 | /* rows of the screens */ |
| 49 | __u16 rows; |
| 50 | /* max. number of ports this device can hold */ |
| 51 | __u32 max_nr_ports; |
Pranavkumar Sawargaonkar | 1c6264c | 2013-05-20 10:25:38 +0930 | [diff] [blame] | 52 | /* emergency write register */ |
| 53 | __u32 emerg_wr; |
David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 54 | } __attribute__((packed)); |
| 55 | |
| 56 | /* |
| 57 | * A message that's passed between the Host and the Guest for a |
| 58 | * particular port. |
| 59 | */ |
| 60 | struct virtio_console_control { |
| 61 | __u32 id; /* Port number */ |
| 62 | __u16 event; /* The kind of control event (see below) */ |
| 63 | __u16 value; /* Extra information for the key */ |
| 64 | }; |
| 65 | |
| 66 | /* Some events for control messages */ |
| 67 | #define VIRTIO_CONSOLE_DEVICE_READY 0 |
| 68 | #define VIRTIO_CONSOLE_PORT_ADD 1 |
| 69 | #define VIRTIO_CONSOLE_PORT_REMOVE 2 |
| 70 | #define VIRTIO_CONSOLE_PORT_READY 3 |
| 71 | #define VIRTIO_CONSOLE_CONSOLE_PORT 4 |
| 72 | #define VIRTIO_CONSOLE_RESIZE 5 |
| 73 | #define VIRTIO_CONSOLE_PORT_OPEN 6 |
| 74 | #define VIRTIO_CONSOLE_PORT_NAME 7 |
| 75 | |
| 76 | |
| 77 | #endif /* _UAPI_LINUX_VIRTIO_CONSOLE_H */ |