Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 * Copyright (C) Red Hat, Inc., 2009, 2010, 2011
11 * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011
12 */
13
14/* Feature bits */
15#define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */
16#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */
17
18#define VIRTIO_CONSOLE_BAD_ID (~(u32)0)
19
20struct virtio_console_config {
21 /* colums of the screens */
22 __u16 cols;
23 /* rows of the screens */
24 __u16 rows;
25 /* max. number of ports this device can hold */
26 __u32 max_nr_ports;
27} __attribute__((packed));
28
29/*
30 * A message that's passed between the Host and the Guest for a
31 * particular port.
32 */
33struct virtio_console_control {
34 __u32 id; /* Port number */
35 __u16 event; /* The kind of control event (see below) */
36 __u16 value; /* Extra information for the key */
37};
38
39/* Some events for control messages */
40#define VIRTIO_CONSOLE_DEVICE_READY 0
41#define VIRTIO_CONSOLE_PORT_ADD 1
42#define VIRTIO_CONSOLE_PORT_REMOVE 2
43#define VIRTIO_CONSOLE_PORT_READY 3
44#define VIRTIO_CONSOLE_CONSOLE_PORT 4
45#define VIRTIO_CONSOLE_RESIZE 5
46#define VIRTIO_CONSOLE_PORT_OPEN 6
47#define VIRTIO_CONSOLE_PORT_NAME 7
48
49#ifdef __KERNEL__
50int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int));
51#endif /* __KERNEL__ */
52
53#endif /* _LINUX_VIRTIO_CONSOLE_H */