linux-toradex.git/include/linux/virtio_console.h, branch v2.6.34

virtio: disable multiport console support.

2010-04-08T00:16:19+00:00

Move MULTIPORT feature and related config changes
out of exported headers, and disable the feature
at runtime.

At this point, it seems less risky to keep code around
until we can enable it than rip it out completely.

Signed-off-by: Michael S. Tsirkin 
Signed-off-by: Rusty Russell

virtio: console: Add ability to hot-unplug ports

2010-02-24T03:53:00+00:00

Remove port data; deregister from the hvc core if it's a console port.

Signed-off-by: Amit Shah 
Signed-off-by: Rusty Russell

virtio: console: Register with sysfs and create a 'name' attribute for ports

2010-02-24T03:52:56+00:00

The host can set a name for ports so that they're easily discoverable
instead of going by the /dev/vportNpn naming. This attribute will be
placed in /sys/class/virtio-ports/vportNpn/name. udev scripts can then
create symlinks to the port using the name.

Signed-off-by: Amit Shah 
Signed-off-by: Rusty Russell

virtio: console: Add file operations to ports for open/read/write/poll

2010-02-24T03:52:54+00:00

Allow guest userspace applications to open, read from, write to, poll
the ports via the char dev interface.

When a port gets opened, a notification is sent to the host via a
control message indicating a connection has been established. Similarly,
on closing of the port, a notification is sent indicating disconnection.

Signed-off-by: Amit Shah 
Signed-off-by: Rusty Russell

virtio: console: Add a new MULTIPORT feature, support for generic ports

2010-02-24T03:52:52+00:00

This commit adds a new feature, MULTIPORT. If the host supports this
feature as well, the config space has the number of ports defined for
that device. New ports are spawned according to this information.

The config space also has the maximum number of ports that can be
spawned for a particular device. This is useful in initializing the
appropriate number of virtqueues in advance, as ports might be
hot-plugged in later.

Using this feature, generic ports can be created which are not tied to
hvc consoles.

We also open up a private channel between the host and the guest via
which some "control" messages are exchanged for the ports, like whether
the port being spawned is a console port, resizing the console window,
etc.

Next commits will add support for hotplugging and presenting char
devices in /dev/ for bi-directional guest-host communication.

Signed-off-by: Amit Shah 
Signed-off-by: Rusty Russell

virtio: console: comment cleanup

2010-02-24T03:52:30+00:00

Remove old lguest-style comments.

[Amit: - wingify comments acc. to kernel style
       - indent comments ]

Signed-off-by: Rusty Russell 
Signed-off-by: Amit Shah 
Signed-off-by: Rusty Russell

virtio: let header files include virtio_ids.h

2009-10-22T06:09:28+00:00

Rusty,

commit 3ca4f5ca73057a617f9444a91022d7127041970a
    virtio: add virtio IDs file
moved all device IDs into a single file. While the change itself is
a very good one, it can break userspace applications. For example
if a userspace tool wanted to get the ID of virtio_net it used to
include virtio_net.h. This does no longer work, since virtio_net.h
does not include virtio_ids.h.
This patch moves all "#include " from the C
files into the header files, making the header files compatible with
the old ones.

In addition, this patch exports virtio_ids.h to userspace.

CC: Fernando Luis Vazquez Cao 
Signed-off-by: Christian Borntraeger 
Signed-off-by: Rusty Russell

virtio: add virtio IDs file

2009-09-23T12:56:32+00:00

Virtio IDs are spread all over the tree which makes assigning new IDs
bothersome. Putting them together should make the process less error-prone.

Signed-off-by: Fernando Luis Vazquez Cao 
Signed-off-by: Rusty Russell

headers_check fix: linux/virtio_console.h

2009-01-30T18:42:44+00:00

fix the following 'make headers_check' warning:

  usr/include/linux/virtio_console.h:15: found __[us]{8,16,32,64} type without #include 

Signed-off-by: Jaswinder Singh Rajput

virtio_console: support console resizing

2008-12-29T22:56:10+00:00

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 
Signed-off-by: Rusty Russell