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Commit 197616e2 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
Browse files

greybus: control: implement disconnecting operation 



Implement the new disconnecting control operation needed for proper
connection tear down.

Reviewed-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarJohan Hovold <johan@hovoldconsulting.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent aca7aab3

drivers/staging/greybus/control.c

+12 −0
Original line number Diff line number Diff line
@@ -149,6 +149,18 @@ int gb_control_disconnected_operation(struct gb_control *control, u16 cport_id) 
				 sizeof(request), NULL, 0);

}



int gb_control_disconnecting_operation(struct gb_control *control,

					u16 cport_id)

{

	struct gb_control_disconnecting_request request;



	request.cport_id = cpu_to_le16(cport_id);



	return gb_operation_sync(control->connection,

				 GB_CONTROL_TYPE_DISCONNECTING, &request,

				 sizeof(request), NULL, 0);

}



int gb_control_mode_switch_operation(struct gb_control *control)

{

	return gb_operation_unidirectional(control->connection,

drivers/staging/greybus/control.h

+2 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ void gb_control_put(struct gb_control *control); 
int gb_control_get_bundle_versions(struct gb_control *control);

int gb_control_connected_operation(struct gb_control *control, u16 cport_id);

int gb_control_disconnected_operation(struct gb_control *control, u16 cport_id);

int gb_control_disconnecting_operation(struct gb_control *control,

					u16 cport_id);

int gb_control_mode_switch_operation(struct gb_control *control);

int gb_control_get_manifest_size_operation(struct gb_interface *intf);

int gb_control_get_manifest_operation(struct gb_interface *intf, void *manifest,

drivers/staging/greybus/greybus_protocols.h

+6 −0
Original line number Diff line number Diff line
@@ -123,6 +123,7 @@ struct gb_protocol_version_response { 
#define GB_CONTROL_TYPE_TIMESYNC_AUTHORITATIVE	0x09

/*	Unused					0x0a */

#define GB_CONTROL_TYPE_BUNDLE_VERSION		0x0b

#define GB_CONTROL_TYPE_DISCONNECTING		0x0c

#define GB_CONTROL_TYPE_TIMESYNC_GET_LAST_EVENT	0x0d

#define GB_CONTROL_TYPE_MODE_SWITCH		0x0e
@@ -160,6 +161,11 @@ struct gb_control_connected_request { 
	__le16			cport_id;

} __packed;



struct gb_control_disconnecting_request {

	__le16			cport_id;

} __packed;

/* disconnecting response has no payload */



struct gb_control_disconnected_request {

	__le16			cport_id;

} __packed;