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authorAlexander Usyskin <alexander.usyskin@intel.com>2015-07-26 09:54:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-04 03:30:00 +0300
commitbb2ef9c39db2e3c2562b4e439b2b00dc42e2c026 (patch)
tree632acc72047a233febc00c0a9d38ac423b25ba77 /include/linux/mei_cl_bus.h
parent237092bf034a648611f61eb1f0965e9ba1b08871 (diff)
downloadlinux-bb2ef9c39db2e3c2562b4e439b2b00dc42e2c026.tar.xz
mei: bus: add and call callback on notify event
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 <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/mei_cl_bus.h')
-rw-r--r--include/linux/mei_cl_bus.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index 81ab56dd0ae0..0962b2ca628a 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -28,6 +28,7 @@ typedef void (*mei_cl_event_cb_t)(struct mei_cl_device *device,
* @event_cb: Drivers register this callback to get asynchronous ME
* events (e.g. Rx buffer pending) notifications.
* @event_context: event callback run context
+ * @events_mask: Events bit mask requested by driver.
* @events: Events bitmask sent to the driver.
*
* @do_match: wheather device can be matched with a driver
@@ -46,6 +47,7 @@ struct mei_cl_device {
struct work_struct event_work;
mei_cl_event_cb_t event_cb;
void *event_context;
+ unsigned long events_mask;
unsigned long events;
unsigned int do_match:1;
@@ -76,10 +78,12 @@ ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length);
ssize_t mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length);
int mei_cl_register_event_cb(struct mei_cl_device *device,
+ unsigned long event_mask,
mei_cl_event_cb_t read_cb, void *context);
#define MEI_CL_EVENT_RX 0
#define MEI_CL_EVENT_TX 1
+#define MEI_CL_EVENT_NOTIF 2
void *mei_cl_get_drvdata(const struct mei_cl_device *device);
void mei_cl_set_drvdata(struct mei_cl_device *device, void *data);