kernel/linux.git/drivers/misc/mei/mei_dev.h, branch linux-4.3.y

mei: bus: add and call callback on notify event

2015-08-04T00:30:00+00:00

Enable drivers on mei client bus to subscribe to asynchronous event notifications. Introduce events_mask to the existing callback infrastructure so it is possible to handle both RX and event notification. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: implement fasync for event notification

2015-08-04T00:30:00+00:00

A process can be informed about client notification also via SIGIO with POLL_PRI event. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: add a handler that waits for notification on event

2015-08-04T00:30:00+00:00

mei_cl_notify_get is to be called by a host client to wait, receive, and ack the event notification. Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman

mei: enable async event notifications only from hbm version 2.0

2015-08-04T00:26:45+00:00

Only FW version 2.0 and newer support the async event notification. For backward compatibility block the feature if the FW version is older then 2.0 Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman

mei: implement async notification hbm messages

2015-08-04T00:26:45+00:00

Implement sending and reception handlers for the async event notification hbm commands. Add client notification book keeping data required for the messages notify_en to indicate whether notification is enabled notify_ev to indicate whether an event is pending Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman

mei: disconnect on connection request timeout

2015-08-04T00:25:51+00:00

For the FW with HBM version >= 2.0 we don't need to reset the whole device in case of a particular client failing to connect, it is enough to send disconnect a request to bring the device to the stable state. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: support for dynamic clients

2015-08-04T00:25:51+00:00

HBM version 2.0 and above allows ME clients in the system to register/unregister after the system is fully initialized. Clients may be added or removed after enum_resp message was received 1. To preserve backward compatibility the driver can opt-in to receive client add messages by setting allow_add field in enum_req 2. A new client is added upon reception of MEI_HBM_ADD_CLIENT_REQ_CMD 3. A client is removed in a lazy manner when connection request respond with MEI_HBMS_CLIENT_NOT_FOUND status Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: bus: link client devices instead of host clients

2015-08-04T00:24:48+00:00

MEI bus was designed around nfc and was hard to extend. Instead of the hard coded way of adding the devices on the mei bus we scan the whole me client list and create a device for each eligible me client (mei_cl_bus_rescan); currently we support only clients with single connection and fixed address clients. NFC radio name detection is run as a fixup routine The patch replaces handling the device list based on struct me_cl to device list based on me_cl_devices. The creating a connection is pushed from the device creation time to device enablement. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: bus: simplify how we build nfc bus name

2015-08-04T00:24:16+00:00

Remove the dependency on struct ndev from the nfc device name creation function so it is possible to use it in a fixup routine Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: bus: enable running fixup routines before device registration

2015-08-04T00:24:16+00:00

Split the device registration into allocation and device struct initialization, device setup, and the final device registration. This why it is possible to run fixups and quirks during the setup stage on an initialized device. Each fixup routine effects do_match flag. If the flag is set to false at the end the device won't be registered on the bus. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman