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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 |
11 | */ |
12 | |
13 | /* Feature bits */ |
14 | #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */ |
15 | #define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */ |
16 | |
17 | #define VIRTIO_CONSOLE_BAD_ID (~(u32)0) |
18 | |
19 | struct virtio_console_config { |
20 | /* colums of the screens */ |
21 | __u16 cols; |
22 | /* rows of the screens */ |
23 | __u16 rows; |
24 | /* max. number of ports this device can hold */ |
25 | __u32 max_nr_ports; |
26 | } __attribute__((packed)); |
27 | |
28 | /* |
29 | * A message that's passed between the Host and the Guest for a |
30 | * particular port. |
31 | */ |
32 | struct virtio_console_control { |
33 | __u32 id; /* Port number */ |
34 | __u16 event; /* The kind of control event (see below) */ |
35 | __u16 value; /* Extra information for the key */ |
36 | }; |
37 | |
38 | /* Some events for control messages */ |
39 | #define VIRTIO_CONSOLE_DEVICE_READY 0 |
40 | #define VIRTIO_CONSOLE_PORT_ADD 1 |
41 | #define VIRTIO_CONSOLE_PORT_REMOVE 2 |
42 | #define VIRTIO_CONSOLE_PORT_READY 3 |
43 | #define VIRTIO_CONSOLE_CONSOLE_PORT 4 |
44 | #define VIRTIO_CONSOLE_RESIZE 5 |
45 | #define VIRTIO_CONSOLE_PORT_OPEN 6 |
46 | #define VIRTIO_CONSOLE_PORT_NAME 7 |
47 | |
48 | #ifdef __KERNEL__ |
49 | int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)); |
50 | #endif /* __KERNEL__ */ |
51 | |
52 | #endif /* _LINUX_VIRTIO_CONSOLE_H */ |
53 |
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v2.6.34-rc5
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