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Commit e894d0e3 authored by David Herrmann's avatar David Herrmann Committed by Jiri Kosina
Browse files

HID: wiimote: Add wiimote device structure 



Allocate wiimote device structure with all wiimote related data
when registering new wiimote devices.

Signed-off-by: default avatarDavid Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 02fb72a0

drivers/hid/hid-wiimote.c

+39 −2
Original line number Diff line number Diff line
@@ -17,6 +17,10 @@ 
#define WIIMOTE_VERSION "0.1"

#define WIIMOTE_NAME "Nintendo Wii Remote"



struct wiimote_data {

	struct hid_device *hdev;

};



static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,

							u8 *raw_data, int size)

{
@@ -26,31 +30,64 @@ static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report, 
	return 0;

}



static struct wiimote_data *wiimote_create(struct hid_device *hdev)

{

	struct wiimote_data *wdata;



	wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);

	if (!wdata)

		return NULL;



	wdata->hdev = hdev;

	hid_set_drvdata(hdev, wdata);



	return wdata;

}



static void wiimote_destroy(struct wiimote_data *wdata)

{

	kfree(wdata);

}



static int wiimote_hid_probe(struct hid_device *hdev,

				const struct hid_device_id *id)

{

	struct wiimote_data *wdata;

	int ret;



	wdata = wiimote_create(hdev);

	if (!wdata) {

		hid_err(hdev, "Can't alloc device\n");

		return -ENOMEM;

	}



	ret = hid_parse(hdev);

	if (ret) {

		hid_err(hdev, "HID parse failed\n");

		return ret;

		goto err;

	}



	ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);

	if (ret) {

		hid_err(hdev, "HW start failed\n");

		return ret;

		goto err;

	}



	hid_info(hdev, "New device registered\n");

	return 0;



err:

	wiimote_destroy(wdata);

	return ret;

}



static void wiimote_hid_remove(struct hid_device *hdev)

{

	struct wiimote_data *wdata = hid_get_drvdata(hdev);



	hid_info(hdev, "Device removed\n");

	hid_hw_stop(hdev);

	wiimote_destroy(wdata);

}



static const struct hid_device_id wiimote_hid_devices[] = {