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authorDavid Herrmann <dh.herrmann@googlemail.com>2011-07-05 13:45:16 +0200
committerJiri Kosina <jkosina@suse.cz>2011-07-11 14:30:23 +0200
commit1abb9ad389f037612b6ba6b0dede2095c59cd2fa (patch)
tree48db9fb71189b63c5b776bb42d0cbf18a7eaab43
parenta4d19197627e2a8645cccd9039edf513c6384297 (diff)
HID: wiimote: Add wiimote input button parser
Parse input report 0x30 from the wiimote as button input. We need to send events for all buttons on every input report because the wiimote does not send events for single buttons but always for all buttons to us. The input layer, however, filters redundant events. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
-rw-r--r--drivers/hid/hid-wiimote.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c
index c86ae92b51d..efdf62b730f 100644
--- a/drivers/hid/hid-wiimote.c
+++ b/drivers/hid/hid-wiimote.c
@@ -39,6 +39,39 @@ struct wiimote_data {
struct work_struct worker;
};
+enum wiiproto_reqs {
+ WIIPROTO_REQ_DRM_K = 0x30,
+};
+
+enum wiiproto_keys {
+ WIIPROTO_KEY_LEFT,
+ WIIPROTO_KEY_RIGHT,
+ WIIPROTO_KEY_UP,
+ WIIPROTO_KEY_DOWN,
+ WIIPROTO_KEY_PLUS,
+ WIIPROTO_KEY_MINUS,
+ WIIPROTO_KEY_ONE,
+ WIIPROTO_KEY_TWO,
+ WIIPROTO_KEY_A,
+ WIIPROTO_KEY_B,
+ WIIPROTO_KEY_HOME,
+ WIIPROTO_KEY_COUNT
+};
+
+static __u16 wiiproto_keymap[] = {
+ KEY_LEFT, /* WIIPROTO_KEY_LEFT */
+ KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
+ KEY_UP, /* WIIPROTO_KEY_UP */
+ KEY_DOWN, /* WIIPROTO_KEY_DOWN */
+ KEY_NEXT, /* WIIPROTO_KEY_PLUS */
+ KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
+ BTN_1, /* WIIPROTO_KEY_ONE */
+ BTN_2, /* WIIPROTO_KEY_TWO */
+ BTN_A, /* WIIPROTO_KEY_A */
+ BTN_B, /* WIIPROTO_KEY_B */
+ BTN_MODE, /* WIIPROTO_KEY_HOME */
+};
+
static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
size_t count)
{
@@ -130,6 +163,33 @@ static int wiimote_input_event(struct input_dev *dev, unsigned int type,
return 0;
}
+static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
+{
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT],
+ !!(payload[0] & 0x01));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_RIGHT],
+ !!(payload[0] & 0x02));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_DOWN],
+ !!(payload[0] & 0x04));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_UP],
+ !!(payload[0] & 0x08));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_PLUS],
+ !!(payload[0] & 0x10));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_TWO],
+ !!(payload[1] & 0x01));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_ONE],
+ !!(payload[1] & 0x02));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_B],
+ !!(payload[1] & 0x04));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_A],
+ !!(payload[1] & 0x08));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_MINUS],
+ !!(payload[1] & 0x10));
+ input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_HOME],
+ !!(payload[1] & 0x80));
+ input_sync(wdata->input);
+}
+
struct wiiproto_handler {
__u8 id;
size_t size;
@@ -137,6 +197,7 @@ struct wiiproto_handler {
};
static struct wiiproto_handler handlers[] = {
+ { .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys },
{ .id = 0 }
};
@@ -167,6 +228,7 @@ static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
static struct wiimote_data *wiimote_create(struct hid_device *hdev)
{
struct wiimote_data *wdata;
+ int i;
wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
if (!wdata)
@@ -190,6 +252,10 @@ static struct wiimote_data *wiimote_create(struct hid_device *hdev)
wdata->input->id.version = wdata->hdev->version;
wdata->input->name = WIIMOTE_NAME;
+ set_bit(EV_KEY, wdata->input->evbit);
+ for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
+ set_bit(wiiproto_keymap[i], wdata->input->keybit);
+
spin_lock_init(&wdata->qlock);
INIT_WORK(&wdata->worker, wiimote_worker);