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authorDavid Herrmann <dh.herrmann@googlemail.com>2011-09-06 13:50:37 +0200
committerJiri Kosina <jkosina@suse.cz>2011-09-07 13:25:17 +0200
commit0370d7cb30716b202b2412b9b2d4740fd3152d30 (patch)
treede22cc063955c3a4c49bf0988ef4c40783070b50 /drivers/hid
parentfc221cda3b1220bb3d356349bd843fabef3cf96f (diff)
HID: wiimote: Initialize IR cam on request
Initialize the IR cam if the related input device is opened by userspace. Stop IR cam again if userspace is no longer interested in its data events. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-wiimote.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c
index 35dc293db40e..66583986bcdb 100644
--- a/drivers/hid/hid-wiimote.c
+++ b/drivers/hid/hid-wiimote.c
@@ -668,6 +668,32 @@ static void wiimote_accel_close(struct input_dev *dev)
hid_hw_close(wdata->hdev);
}
+static int wiimote_ir_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ int ret;
+
+ ret = hid_hw_open(wdata->hdev);
+ if (ret)
+ return ret;
+
+ ret = wiimote_init_ir(wdata, WIIPROTO_FLAG_IR_BASIC);
+ if (ret) {
+ hid_hw_close(wdata->hdev);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void wiimote_ir_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+
+ wiimote_init_ir(wdata, 0);
+ hid_hw_close(wdata->hdev);
+}
+
static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
{
input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT],
@@ -1062,6 +1088,8 @@ static struct wiimote_data *wiimote_create(struct hid_device *hdev)
goto err_ir;
input_set_drvdata(wdata->ir, wdata);
+ wdata->ir->open = wiimote_ir_open;
+ wdata->ir->close = wiimote_ir_close;
wdata->ir->dev.parent = &wdata->hdev->dev;
wdata->ir->id.bustype = wdata->hdev->bus;
wdata->ir->id.vendor = wdata->hdev->vendor;