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Commit 0370d7cb authored by David Herrmann's avatar David Herrmann Committed by Jiri Kosina
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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: default avatarDavid Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent fc221cda

drivers/hid/hid-wiimote.c

+28 −0
Original line number Original line Diff line number Diff line
@@ -668,6 +668,32 @@ static void wiimote_accel_close(struct input_dev *dev) 
	hid_hw_close(wdata->hdev);

	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)

static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)

{

{

	input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT],

	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;

		goto err_ir;





	input_set_drvdata(wdata->ir, wdata);

	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->dev.parent = &wdata->hdev->dev;

	wdata->ir->id.bustype = wdata->hdev->bus;

	wdata->ir->id.bustype = wdata->hdev->bus;

	wdata->ir->id.vendor = wdata->hdev->vendor;

	wdata->ir->id.vendor = wdata->hdev->vendor;