From 0b6815d75d8bf214998455d94061a40f3b4a77f3 Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Thu, 17 Nov 2011 14:12:06 +0100 Subject: HID: wiimote: Add extension handler stubs All supported extensions report data as 6 byte block. All DRMs with extension data provide at least 6 extension bytes. Hence a generic handler for all extension bytes is sufficient and can be called on all DRMs. The handler distinguishes the input and passes it to the right handler. Motion+ passes data interleaved so we can have Motion+ and a regular extension enabled simultaneously. Signed-off-by: David Herrmann Signed-off-by: Jiri Kosina --- drivers/hid/hid-wiimote-ext.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'drivers/hid/hid-wiimote-ext.c') diff --git a/drivers/hid/hid-wiimote-ext.c b/drivers/hid/hid-wiimote-ext.c index b9254015c58f..ecc7b7b9b171 100644 --- a/drivers/hid/hid-wiimote-ext.c +++ b/drivers/hid/hid-wiimote-ext.c @@ -204,6 +204,35 @@ bool wiiext_active(struct wiimote_data *wdata) return wdata->ext->motionp || wdata->ext->ext_type; } +static void handler_motionp(struct wiimote_ext *ext, const __u8 *payload) +{ +} + +static void handler_nunchuck(struct wiimote_ext *ext, const __u8 *payload) +{ +} + +static void handler_classic(struct wiimote_ext *ext, const __u8 *payload) +{ +} + +/* call this with state.lock spinlock held */ +void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload) +{ + struct wiimote_ext *ext = wdata->ext; + + if (!ext) + return; + + if (ext->motionp && (payload[5] & 0x02)) { + handler_motionp(ext, payload); + } else if (ext->ext_type == WIIEXT_NUNCHUCK) { + handler_nunchuck(ext, payload); + } else if (ext->ext_type == WIIEXT_CLASSIC) { + handler_classic(ext, payload); + } +} + static ssize_t wiiext_show(struct device *dev, struct device_attribute *attr, char *buf) { -- cgit v1.2.2