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[RFC,10/12] HID: wiimote: Add wiimote led request

Message ID 1308095157-4699-11-git-send-email-dh.herrmann@googlemail.com (mailing list archive)
State New, archived
Delegated to: Jiri Kosina
Headers show

Commit Message

David Herrmann June 14, 2011, 11:45 p.m. UTC 
Add new request that sets the leds on the target device. Also, per
default, set led1 after initializing a device.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
---
 drivers/hid/hid-wiimote.c |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)
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Patch

diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c
index 4c3f5eb..fbdd7ef 100644
--- a/drivers/hid/hid-wiimote.c
+++ b/drivers/hid/hid-wiimote.c
@@ -39,7 +39,13 @@  struct wiimote_data {
 	struct work_struct worker;
 };
 
+#define WIIPROTO_FLAG_LED1 0x01
+#define WIIPROTO_FLAG_LED2 0x02
+#define WIIPROTO_FLAG_LED3 0x04
+#define WIIPROTO_FLAG_LED4 0x08
+
 enum wiiproto_reqs {
+	WIIPROTO_REQ_LED = 0x11,
 	WIIPROTO_REQ_DRM_K = 0x30,
 };
 
@@ -154,6 +160,25 @@  static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer,
 	spin_unlock_irqrestore(&wdata->qlock, flags);
 }
 
+static void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
+{
+	__u8 cmd[2];
+
+	cmd[0] = WIIPROTO_REQ_LED;
+	cmd[1] = 0;
+
+	if (leds & WIIPROTO_FLAG_LED1)
+		cmd[1] |= 0x10;
+	if (leds & WIIPROTO_FLAG_LED2)
+		cmd[1] |= 0x20;
+	if (leds & WIIPROTO_FLAG_LED3)
+		cmd[1] |= 0x40;
+	if (leds & WIIPROTO_FLAG_LED4)
+		cmd[1] |= 0x80;
+
+	wiimote_queue(wdata, cmd, sizeof(cmd));
+}
+
 static int wiimote_input_event(struct input_dev *dev, unsigned int type,
 						unsigned int code, int value)
 {
@@ -294,6 +319,7 @@  static int wiimote_hid_probe(struct hid_device *hdev,
 
 	atomic_set(&wdata->ready, 1);
 	hid_info(hdev, "New device registered\n");
+	wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
 	return 0;
 
 err_stop: