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| author | David Herrmann <dh.herrmann@googlemail.com> | 2011-11-17 14:12:06 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2011-11-22 23:09:34 +0100 |
| commit | 0b6815d75d8bf214998455d94061a40f3b4a77f3 (patch) | |
| tree | fd8e5bca1ed7a805546f204faad80e3b91fc72b6 /drivers/hid/hid-wiimote-ext.c | |
| parent | 479901ba1847902623cc348b1d09c7d8979a9683 (diff) | |
| download | linux-0b6815d75d8bf214998455d94061a40f3b4a77f3.tar.bz2 | |
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 <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-wiimote-ext.c')
| -rw-r--r-- | drivers/hid/hid-wiimote-ext.c | 29 |
1 files changed, 29 insertions, 0 deletions
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) { |