Bluetooth: hidp: implement hidinput_input_event callback

We can re-enable hidinput_input_event to allow the leds of bluetooth
keyboards to be set.
Now the callbacks uses hid core to retrieve the right HID report to
send, so this version is safer.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 0c699cdc3696edbdf7e7c3d3e213a88979da662e..2977bf7e4b8eadd003311d16ce7d4db8bf5b78bb 100644 (file)
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -238,6 +238,31 @@ static int hidp_send_report(struct hidp_session *session, struct hid_report *rep
        return hidp_send_intr_message(session, hdr, buf, rsize);
 }
 
+static int hidp_hidinput_event(struct input_dev *dev, unsigned int type,
+                              unsigned int code, int value)
+{
+       struct hid_device *hid = input_get_drvdata(dev);
+       struct hidp_session *session = hid->driver_data;
+       struct hid_field *field;
+       int offset;
+
+       BT_DBG("session %p type %d code %d value %d",
+              session, type, code, value);
+
+       if (type != EV_LED)
+               return -1;
+
+       offset = hidinput_find_field(hid, type, code, &field);
+       if (offset == -1) {
+               hid_warn(dev, "event field not found\n");
+               return -1;
+       }
+
+       hid_set_field(field, offset, value);
+
+       return hidp_send_report(session, field->report);
+}
+
 static int hidp_get_raw_report(struct hid_device *hid,
                unsigned char report_number,
                unsigned char *data, size_t count,
@@ -711,6 +736,7 @@ static struct hid_ll_driver hidp_hid_driver = {
        .stop = hidp_stop,
        .open  = hidp_open,
        .close = hidp_close,
+       .hidinput_input_event = hidp_hidinput_event,
 };
 
 /* This function sets up the hid device. It does not add it