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31610434 RR |
1 | #ifndef _LINUX_VIRTIO_CONSOLE_H |
2 | #define _LINUX_VIRTIO_CONSOLE_H | |
86973254 | 3 | #include <linux/types.h> |
e95646c3 | 4 | #include <linux/virtio_ids.h> |
31610434 | 5 | #include <linux/virtio_config.h> |
a23ea924 RR |
6 | /* |
7 | * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so | |
8 | * anyone can use the definitions to implement compatible drivers/servers. | |
17634ba2 | 9 | * |
5084f893 AS |
10 | * Copyright (C) Red Hat, Inc., 2009, 2010, 2011 |
11 | * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011 | |
a23ea924 | 12 | */ |
31610434 | 13 | |
c2983458 CB |
14 | /* Feature bits */ |
15 | #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */ | |
b99fa815 | 16 | #define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */ |
c2983458 | 17 | |
eaeff960 AS |
18 | #define VIRTIO_CONSOLE_BAD_ID (~(u32)0) |
19 | ||
c2983458 CB |
20 | struct virtio_console_config { |
21 | /* colums of the screens */ | |
22 | __u16 cols; | |
23 | /* rows of the screens */ | |
24 | __u16 rows; | |
b99fa815 AS |
25 | /* max. number of ports this device can hold */ |
26 | __u32 max_nr_ports; | |
c2983458 CB |
27 | } __attribute__((packed)); |
28 | ||
b99fa815 AS |
29 | /* |
30 | * A message that's passed between the Host and the Guest for a | |
31 | * particular port. | |
32 | */ | |
33 | struct 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 */ | |
f909f850 AS |
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 | |
b99fa815 | 48 | |
31610434 RR |
49 | #ifdef __KERNEL__ |
50 | int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)); | |
51 | #endif /* __KERNEL__ */ | |
52 | ||
53 | #endif /* _LINUX_VIRTIO_CONSOLE_H */ |