diff options
author | Christian Borntraeger <borntraeger@de.ibm.com> | 2008-11-25 07:36:26 -0500 |
---|---|---|
committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-29 17:56:10 -0500 |
commit | c29834584ea4eafccf2f62a0b8a32e64f792044c (patch) | |
tree | 296533011a14c83ad20e02c89dc391f93cf12fcd /include/linux | |
parent | 29f9f12ec737af62835124e4a8bdb9de631f04dd (diff) |
virtio_console: support console resizing
this patch uses the new hvc callback hvc_resize to set the window size
which allows to change the tty size of hvc_console via a hvc_resize
function.
I have added a new feature bit VIRTIO_CONSOLE_F_SIZE. The driver will
change the window size on tty open and via the config_changed callback
of the transport. Currently lguest and kvm_s390 have not implemented this
callback, but the callback can be implemented at a later point in time.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/virtio_console.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h index 19a0da0dba41..7615ffcdd555 100644 --- a/include/linux/virtio_console.h +++ b/include/linux/virtio_console.h | |||
@@ -7,6 +7,17 @@ | |||
7 | /* The ID for virtio console */ | 7 | /* The ID for virtio console */ |
8 | #define VIRTIO_ID_CONSOLE 3 | 8 | #define VIRTIO_ID_CONSOLE 3 |
9 | 9 | ||
10 | /* Feature bits */ | ||
11 | #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */ | ||
12 | |||
13 | struct virtio_console_config { | ||
14 | /* colums of the screens */ | ||
15 | __u16 cols; | ||
16 | /* rows of the screens */ | ||
17 | __u16 rows; | ||
18 | } __attribute__((packed)); | ||
19 | |||
20 | |||
10 | #ifdef __KERNEL__ | 21 | #ifdef __KERNEL__ |
11 | int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)); | 22 | int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)); |
12 | #endif /* __KERNEL__ */ | 23 | #endif /* __KERNEL__ */ |